CN106089682A - Position, a kind of boundary ventilation valve and application thereof - Google Patents
Position, a kind of boundary ventilation valve and application thereof Download PDFInfo
- Publication number
- CN106089682A CN106089682A CN201610559494.6A CN201610559494A CN106089682A CN 106089682 A CN106089682 A CN 106089682A CN 201610559494 A CN201610559494 A CN 201610559494A CN 106089682 A CN106089682 A CN 106089682A
- Authority
- CN
- China
- Prior art keywords
- plunger
- changer lever
- pump
- hole
- separate space
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000009423 ventilation Methods 0.000 title claims abstract description 36
- 239000012530 fluid Substances 0.000 claims abstract description 42
- 238000007789 sealing Methods 0.000 claims abstract description 30
- 230000000694 effects Effects 0.000 claims abstract description 13
- 230000000630 rising effect Effects 0.000 claims abstract description 9
- 239000004033 plastic Substances 0.000 claims description 10
- 229920003023 plastic Polymers 0.000 claims description 10
- 229920000747 poly(lactic acid) Polymers 0.000 claims description 10
- 239000004626 polylactic acid Substances 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 10
- 238000007514 turning Methods 0.000 claims description 9
- 230000008859 change Effects 0.000 claims description 6
- 238000005260 corrosion Methods 0.000 claims description 6
- 230000007797 corrosion Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 125000006850 spacer group Chemical group 0.000 claims description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 4
- 229920001661 Chitosan Polymers 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 239000000565 sealant Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 2
- 229920002472 Starch Polymers 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims description 2
- 229960000892 attapulgite Drugs 0.000 claims description 2
- 229910000278 bentonite Inorganic materials 0.000 claims description 2
- 239000000440 bentonite Substances 0.000 claims description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 229910052625 palygorskite Inorganic materials 0.000 claims description 2
- 239000008188 pellet Substances 0.000 claims description 2
- 239000008107 starch Substances 0.000 claims description 2
- 235000019698 starch Nutrition 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 239000004519 grease Substances 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 9
- 230000007613 environmental effect Effects 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 206010012735 Diarrhoea Diseases 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000003856 thermoforming Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention discloses position, a kind of boundary ventilation valve: it is for the reciprocating pump of fluid source dynamic Control switching single plunger；It is connected to the plunger switch unit of reciprocating pump by exhaust passage, and position, described boundary ventilation valve comprises back-moving spring (1), sealing ring (3), pressure relief vent (2)；Position, described boundary ventilation valve can allow plunger continue because of cannot exhaust pressure relief when, under force toward rising, display increase position, boundary ventilation valve can allow plunger continue because of cannot exhaust pressure relief when, under force toward rising, after position, boundary is broken through in plunger rising, under force, position, boundary ventilation valve rises, thus opens valve and be exhausted.After position, the boundary ventilation valve of the present invention is applied to reciprocating pump, it can make yields reach 100%, and under the conditions of specific eccentric orfice, also find that the pressure to reciprocating pump and flow holding capacity serve great raising effect, can run with hypervelocity, it is substantially reduced energy resource consumption, is a kind of environmental protection new technique.
Description
Technical field
The invention belongs to valve technology field, be specifically related to position, a kind of boundary ventilation valve, it is applied to hydraulic type reciprocating pump,
A kind of pressurized fluid driven output reciprocating power do not allow flimsy reciprocating pump.
Background technology
In a lot of occasions needing offer to stablize power, often seeing various fluid pump, fluid pump utilizes various here
The liquid of high pressure or gas, drive the moving link motion in pump, export reliable and stable power, and fluid reciprocating pump includes turning
The modes such as dynamic and reciprocating motion, the common structure of current vibrating armature pump includes the pump housing and the work being similar to piston structure
For the piston rod of movable force piece, being provided with the two through hole of fluid turnover at the two ends of the pump housing, this two through hole is used for by one
Control this two through hole turnover gas, go out the fluid of air inlet and flow to switching device and be connected conducting with outside high-pressure fluid source, outside
High-pressure fluid source after fluid flows to switching device respectively through hole from pump housing two ends enter or discharge, thus driving pump
The piston in internal portion side-to-side movement to and fro, it is achieved export reliable and stable reciprocating purpose, the most common reciprocating pump,
The fluid used flows to switching device because have employed the spring elastic restoring force source as inner loop, bullet at work
Spring can ceaselessly freely be replied by compress energy storage or after being released, because the reciprocating frequency of this reciprocating pump is higher,
The particularly reciprocating pump of drive of high-pressure gas, spring is compressed frequency with the resilience motion frequency with the pump rod of reciprocating pump to be protected
Hold synchronization, the work under this altofrequency, be easily caused spring the most tired, the fatigue limit of spring will soon be reached,
Cause fluid to flow to switching device to be quickly invalidated, show according to current test, the fluid pump of the most this structure, newly
If pump continuous firing, when using continuously, working life often continues the short period, these the most current fluid pumps, because of
The life-span flowing to switching device for fluid is shorter, and the working life causing whole fluid pump is restricted, and needs preparation many
Individual backup fluid pump, not only can affect the efficiency of production, considerably increase the cost of the use of user simultaneously.
Described in earlier application 201310498978.0(of the present inventor, patent form in full introduces the application) disclose
A kind of offer can provide high-frequent reciprocating linear motion and fluid to flow to switching device will not to produce fatigue and cause premature breakdown
Reciprocating pump, its changer lever is provided with one or more air inlet eccentric orfice, but in actual production application, finds raw
In product, optimum rate is on the low side, and after much using a period of time, can produce " malfunctioning " phenomenon, and i.e. plunger (changer lever) is because arranging
Diarrhea due to stagnation of QI pressure, thus cannot work on.
It is desirable to provide a kind of new position, boundary ventilation valve, it is applied to hydraulic type reciprocating pump, especially a kind of pressure
Power fluid-operated output reciprocating power do not allow flimsy reciprocating pump.
Summary of the invention
The technical problem existed based on background technology, the shortcoming that the present invention is directed to prior art, by years of researches and
Experiment, it is provided that a kind of new position, boundary ventilation valve, it is applied to hydraulic type reciprocating pump, a kind of pressurized fluid driven defeated
Go out reciprocating power does not allows flimsy reciprocating pump, and it can make yields reach 100%, and installs simple and convenient, and design is skilful
Wonderful, coordinate the eccentric venthole of changer lever, will not leak gas, overlong service life, and also it is surprised to find that described valve is to reciprocating pump
Pressure and flow holding capacity serve great raising effect, can run with hypervelocity, be substantially reduced energy resource consumption, be a kind of
Environmental protection new technique.
Technical scheme is as follows:
Position, a kind of boundary ventilation valve, it is characterised in that:
It is for the reciprocating pump of fluid source dynamic Control switching single plunger；Its plunger being connected to reciprocating pump by exhaust passage is cut
Changing unit (i.e. changer lever), position, described boundary ventilation valve comprises back-moving spring (1), sealing ring (3), pressure relief vent (2)；
Wherein exhaust passage has 3,2 be positioned at ventilation valve sealing rings on, 1 be positioned at ventilation valve sealing ring it
Under；
Position, described boundary ventilation valve can allow plunger continue because of cannot exhaust pressure relief when, under force toward rising, post
Rising after breaking through position, boundary beyond the Great Wall, under force, position, boundary ventilation valve rises, thus opens valve and be exhausted.
Wherein said fluid source dynamic Control switching single plunger reciprocating pump include with pump housing chamber for pump piston
The inner edge sealing sealing the pump housing and the pump housing chamber coordinated coordinates the pump that pump housing chamber is divided into the first pump housing chamber and the second pump housing chamber to live
Plug, the pump housing the first end and the second end be combined with the pump housing the first pump casing cover of sealing and the second pump casing cover, the pump housing first or
Second pump casing cover center offers piston rod through hole, piston rod seal with piston rod through hole coordinate and with the respective end phase of piston
The most fixing connection, the pump piston side, chamber that the first pump casing cover is relative is first piston face, the chamber pump piston that the second pump casing cover is relative
Side is the second piston area, it is characterised in that: described fluid flows to switching device and includes plunger switch unit and by this post
If the dry seal pipe that plug switch unit is tightly connected with the pump housing chamber in this pump housing, described plunger switch unit includes inside
There is the switching plunger cylinder of elongated plunger cavity, columnar changer lever, the first plunger block, the second plunger block, separation seal
Part, the first plunger cavity seal lid and the second plunger cavity seals lid, the middle part that spaced seals is located in plunger cavity and plunger cavity axle
To location, spaced seals outer rim seals against each other with the inner edge of plunger cavity and coordinates, and by cavity in the middle part of plunger cavity in the axial direction
It is divided into first separate space of the annular of at least 3 spaced sealings, second separate space between separate space and the 3rd, and the first interval
Separate space between chamber and second, having certain thickness sealant between separate space and the 3rd between separate space between second, the second interval intracavity sets
Having the fluid inlet port through with switching plunger cylinder outer surface, the middle part of spaced seals is provided with the axis direction with plunger cavity
Parallel changer lever sliding eye, described first separate space, second separate space between separate space and the 3rd are equipped with the radial direction of at least 1
Spaced holes and changer lever sliding eye mutual conduction, changer lever is the structure of oval tubular, and this columnar structured center sets
Packed plug, the cylinder chamber within columnar changer lever is divided into the of the tubbiness of 2 spaced sealings by this plug
One switching chamber and the second switching chamber, this changer lever is located at the changer lever sliding eye in the middle part of spaced seals Nei and sealing is slided even
Connecing, the first plunger block and the second plunger block are fixing with changer lever respectively at the two ends of changer lever to be connected, and by changer lever both sides
Between the first switching chamber and second, switching seals, and the inner edge of the first plunger block and the second plunger block outer rim and plunger cavity seals against each other joins
Closing, the first cover of plunger and the second cover of plunger fix with switching plunger cylinder and airtight shape is connected, the first cover of plunger and the first plunger
Plunger cavity between block is the first plunger cavity, and the plunger cavity between the first plunger block and spaced seals is the first plunger interval
Chamber, the plunger cavity between the second cover of plunger and the second plunger block is the second plunger cavity, between the second plunger block and spaced seals
Plunger cavity be separate space between the second plunger, changer lever tubbiness face is provided with some groups of changer lever through holes, often group changer lever through hole half
Footpath is r and the center of circle is distributed in the same plane being perpendicular to changer lever axis, and some groups of described changer lever through holes are cut along first
Change the chamber axis direction to the second switching chamber, include successively being distributed in the first row changer lever through hole of the first switching intracavity, second
Row's changer lever through hole, and it is distributed in the 3rd row's changer lever through hole and the 4th row's changer lever through hole of the second switching intracavity, described
The through lateral surface to changer lever of changer lever through hole, when the first plunger block and the first cover of plunger are closely pressed close to, in changer lever
Plug right side edge is less than the right side edge of first separate space, and first row changer lever through hole edge is left without departing from the first switching chamber
When the sealed spacer of side, the second plunger block and the second cover of plunger are closely pressed close to, the plug left side edge in changer lever is less than the
The left side edge of three separate spaces, the 4th row's changer lever through hole edge is without departing from the sealed spacer on the right side of the 3rd separate space, first row
The distance at changer lever through hole and the 4th row's changer lever through hole center is less than the width c of spaced seals, second row changer lever through hole
Nearest distance between edge and the 3rd row's changer lever through hole edge is more than the width of separate space between second, and the second piston area is adjacent to
During the second pump casing cover medial surface, 1a seals pipe one end and runs through the first pump casing cover and the conducting of the first pump housing chamber, and it is another that 1a seals pipe
Separate space conducting between one end and first, 1b seals pipe one end and is turning on the first pump housing chamber at first piston face, the other end
Running through the second cover of plunger and the conducting of the second plunger cavity, when first piston face is adjacent to the first pump casing cover medial surface, 2a seals pipe one
End runs through the second pump casing cover and the conducting of the second pump housing chamber, and 2a seals separate space conducting between the pipe other end and the 3rd, and 2b seals pipe
One end is turning on the second pump housing chamber at the second piston area, and the other end runs through the second cover of plunger and the conducting of the first plunger cavity,
3a seals in the middle part of pipe and is provided with the outlet with turned on outside, two ends separate space between separate space and the second plunger respectively and between the first plunger
Conducting, 3b seals pipe one end and runs through turning on pump housing chamber around discharge orifice of the pump housing, the other end by the midpoint being located at pump housing chamber
Turn on air, the periphery of its centre inwardly concaves the piston groove being formed with annular, this toroidal piston groove and basis
Body cavity inner edge constitutes the plunger shaft sealed, and this piston groove is plunger shaft width h with the distance of contact position, body cavity inner edge, piston two
Distance between end face is piston width H, and after assembling, the distance between the first pump casing cover and the second pump casing cover medial surface is the pump housing
Chamber width L, relation is L < H+h；
It is additionally provided with at least 1 center of circle between described second row changer lever through hole and the 3rd row's changer lever through hole to be located normal to cut
Changing in the same plane of rod axis, radius is the additional-air inlet eccentric orfice of r1, and this auxiliary eccentric orfice is located at the first switching intracavity
Between two row's changer lever through holes and changer lever and plug；
It is additionally provided with at least 1 center of circle between the 4th described row's changer lever through hole and is located normal to the same plane of changer lever axis
In, radius is that the auxiliary of r1 is given vent to anger eccentric orfice, and this auxiliary eccentric orfice is located at first switching intracavity the 4th row's changer lever through hole and cuts
Change between bar and plug.
As preferably, described eccentric orfice deviation changer lever through hole 25-50 silk, i.e. when exchanging critical point, guarantee has 25-50
Silk single hole air inlet (or other fluid), need guarantee to have 25-50 silk single hole aerofluxus (or other fluid) simultaneously；Critical point is exchanged at this
Time, because porous pressure and flow are more than single hole, although slight pressure release can be caused, but can break through critical under the effect of force rate
Point；
Wherein:
(1) eccentric single hole can not excessive, otherwise can build-up of pressure leakage too big and cannot work；
(2) plunger strengthens and enlargement discharge but round excessive, otherwise can not can cause sealing member rapid wear or poor sealing but can
The quantity increasing hole carrys out enlargement discharge；
As preferably, the pressure output position of the described pump housing also comprises one or more pressure monitor, thus reach can nothing
The purpose of line monitoring；
As preferably, described changer lever has also carried out the improvement of material, thus it is bigger to reach pressure-bearing, corrosion-resistant, high temperature resistant, resistance to super
The effect run up.Described material can be corrosion-resistant plastic, rustless steel, or copper.
The invention have benefit that:
1, the reciprocating pump non-defective unit before improving is only about 60%, and after the position, boundary of present invention ventilation valve is applied to reciprocating pump, its
Yields can be made to reach 100%, and under the conditions of specific eccentric orfice, it was found that pressure and flow to reciprocating pump bear
Power serves great raising effect, can run with hypervelocity, be substantially reduced energy resource consumption, is a kind of environmental protection new technique.
2, position, the boundary ventilation valve of the present invention is applied to reciprocating pump, and bearing capacity is also greatly improved, and can be more than 100 MPas,
After intensifying cylinder, reconvert becomes the output pressure of hydraulic energy method 10-30 times, the highest under the air pressure of 10 kilograms back and forth reaches
600-800 beat/min.
3, conventional high-tension substantially leans on mechanical movement (or spring) to exchange reciprocating pressure toward pump, thus can be reacted
Power counteracts part power, and the application's is to directly amplify work, resistance seldom at former pressure, and, system controlled toward stroke
Make adjustment simple.
Accompanying drawing explanation
Fig. 1 is the changer lever that the present invention improves, during as it can be seen, exchange critical point at this, because porous pressure and flow are big
In single hole, although slight pressure release can be caused, but critical point can be broken through under the effect of force rate.
Fig. 2 and Fig. 3 is the changer lever that improves of the present invention and position, boundary scavenging air valve connect after operating diagram；
Fig. 2 show increase position, circle ventilation valve can allow plunger continue because of cannot exhaust pressure relief when, the most past
Rise.
Fig. 3 display column rises after breaking through position, boundary beyond the Great Wall, and under force, position, boundary ventilation valve rises, thus opens valve
It is exhausted.
In above-mentioned figure, arrow represents airflow direction.
Detailed description of the invention
Below in conjunction with the accompanying drawings most highly preferred embodiment of the invention is described in detail, wherein Chinese patent application
201310498978.0 form introduces the application in full.
Embodiment 1:
Position, a kind of boundary ventilation valve, it is characterised in that:
It is for the reciprocating pump of fluid source dynamic Control switching single plunger；Its plunger being connected to reciprocating pump by exhaust passage is cut
Changing unit, position, described boundary ventilation valve comprises back-moving spring (1), sealing ring (3), pressure relief vent (2)；
Position, described boundary ventilation valve can allow plunger continue because of cannot exhaust pressure relief when, under force toward rising, can
With allow plunger continue because of cannot exhaust pressure relief when, under force toward rise, plunger rising break through position, boundary after, in power
Under effect, position, boundary ventilation valve rises, thus opens valve and be exhausted.
Wherein said fluid source dynamic Control switching single plunger reciprocating pump include with pump housing chamber for pump piston
The inner edge sealing sealing the pump housing and the pump housing chamber coordinated coordinates the pump that pump housing chamber is divided into the first pump housing chamber and the second pump housing chamber to live
Plug, the pump housing the first end and the second end be combined with the pump housing the first pump casing cover of sealing and the second pump casing cover, the pump housing first or
Second pump casing cover center offers piston rod through hole, piston rod seal with piston rod through hole coordinate and with the respective end phase of piston
The most fixing connection, the pump piston side, chamber that the first pump casing cover is relative is first piston face, the chamber pump piston that the second pump casing cover is relative
Side is the second piston area, it is characterised in that: described fluid flows to switching device and includes plunger switch unit and by this post
If the dry seal pipe that plug switch unit is tightly connected with the pump housing chamber in this pump housing, described plunger switch unit includes inside
There is the switching plunger cylinder of elongated plunger cavity, columnar changer lever, the first plunger block, the second plunger block, separation seal
Part, the first plunger cavity seal lid and the second plunger cavity seals lid, the middle part that spaced seals is located in plunger cavity and plunger cavity axle
To location, spaced seals outer rim seals against each other with the inner edge of plunger cavity and coordinates, and by cavity in the middle part of plunger cavity in the axial direction
It is divided into first separate space of the annular of at least 3 spaced sealings, second separate space between separate space and the 3rd, and the first interval
Separate space between chamber and second, having certain thickness sealant between separate space and the 3rd between separate space between second, the second interval intracavity sets
Having the fluid inlet port through with switching plunger cylinder outer surface, the middle part of spaced seals is provided with the axis direction with plunger cavity
Parallel changer lever sliding eye, described first separate space, second separate space between separate space and the 3rd are equipped with the radial direction of at least 1
Spaced holes and changer lever sliding eye mutual conduction, changer lever is the structure of oval tubular, and this columnar structured center sets
Packed plug, the cylinder chamber within columnar changer lever is divided into the of the tubbiness of 2 spaced sealings by this plug
One switching chamber and the second switching chamber, this changer lever is located at the changer lever sliding eye in the middle part of spaced seals Nei and sealing is slided even
Connecing, the first plunger block and the second plunger block are fixing with changer lever respectively at the two ends of changer lever to be connected, and by changer lever both sides
Between the first switching chamber and second, switching seals, and the inner edge of the first plunger block and the second plunger block outer rim and plunger cavity seals against each other joins
Closing, the first cover of plunger and the second cover of plunger fix with switching plunger cylinder and airtight shape is connected, the first cover of plunger and the first plunger
Plunger cavity between block is the first plunger cavity, and the plunger cavity between the first plunger block and spaced seals is the first plunger interval
Chamber, the plunger cavity between the second cover of plunger and the second plunger block is the second plunger cavity, between the second plunger block and spaced seals
Plunger cavity be separate space between the second plunger, changer lever tubbiness face is provided with some groups of changer lever through holes, often group changer lever through hole half
Footpath is r and the center of circle is distributed in the same plane being perpendicular to changer lever axis, and some groups of described changer lever through holes are cut along first
Change the chamber axis direction to the second switching chamber, include successively being distributed in the first row changer lever through hole of the first switching intracavity, second
Row's changer lever through hole, and it is distributed in the 3rd row's changer lever through hole and the 4th row's changer lever through hole of the second switching intracavity, described
The through lateral surface to changer lever of changer lever through hole, when the first plunger block and the first cover of plunger are closely pressed close to, in changer lever
Plug right side edge is less than the right side edge of first separate space, and first row changer lever through hole edge is left without departing from the first switching chamber
When the sealed spacer of side, the second plunger block and the second cover of plunger are closely pressed close to, the plug left side edge in changer lever is less than the
The left side edge of three separate spaces, the 4th row's changer lever through hole edge is without departing from the sealed spacer on the right side of the 3rd separate space, first row
The distance at changer lever through hole and the 4th row's changer lever through hole center is less than the width c of spaced seals, second row changer lever through hole
Nearest distance between edge and the 3rd row's changer lever through hole edge is more than the width of separate space between second, and the second piston area is adjacent to
During the second pump casing cover medial surface, 1a seals pipe one end and runs through the first pump casing cover and the conducting of the first pump housing chamber, and it is another that 1a seals pipe
Separate space conducting between one end and first, 1b seals pipe one end and is turning on the first pump housing chamber at first piston face, the other end
Running through the second cover of plunger and the conducting of the second plunger cavity, when first piston face is adjacent to the first pump casing cover medial surface, 2a seals pipe one
End runs through the second pump casing cover and the conducting of the second pump housing chamber, and 2a seals separate space conducting between the pipe other end and the 3rd, and 2b seals pipe
One end is turning on the second pump housing chamber at the second piston area, and the other end runs through the second cover of plunger and the conducting of the first plunger cavity,
3a seals in the middle part of pipe and is provided with the outlet with turned on outside, two ends separate space between separate space and the second plunger respectively and between the first plunger
Conducting, 3b seals pipe one end and runs through turning on pump housing chamber around discharge orifice of the pump housing, the other end by the midpoint being located at pump housing chamber
Turn on air, the periphery of its centre inwardly concaves the piston groove being formed with annular, this toroidal piston groove and basis
Body cavity inner edge constitutes the plunger shaft sealed, and this piston groove is plunger shaft width h with the distance of contact position, body cavity inner edge, piston two
Distance between end face is piston width H, and after assembling, the distance between the first pump casing cover and the second pump casing cover medial surface is the pump housing
Chamber width L, relation is L < H+h；
It is additionally provided with at least 1 center of circle between described second row changer lever through hole and the 3rd row's changer lever through hole to be located normal to cut
Changing in the same plane of rod axis, radius is the additional-air inlet eccentric orfice of r1, and this auxiliary eccentric orfice is located at the first switching intracavity
Between two row's changer lever through holes and changer lever and plug；
It is additionally provided with at least 1 center of circle between the 4th described row's changer lever through hole and is located normal to the same plane of changer lever axis
In, radius is that the auxiliary of r1 is given vent to anger eccentric orfice, and this auxiliary eccentric orfice is located at first switching intracavity the 4th row's changer lever through hole and cuts
Change between bar and plug.
Described eccentric orfice and a diameter of 2.0mm of passage;
Described eccentric orfice deviation changer lever through hole 0.25mm;
Exchange critical point time ensure have 25 single hole air inlets (or other fluid), simultaneously need guarantee have 25 single hole aerofluxuss (or
Other fluid)；When exchanging critical point at this, because porous pressure and flow are more than single hole, although can cause slight pressure release, but
Critical point can be broken through under the effect of force rate；
Wherein:
Plunger strengthens and enlargement discharge but round excessive, otherwise can not can cause sealing member rapid wear or poor sealing but can increase
The quantity in hole carrys out enlargement discharge；
The pressure output position of the described pump housing also comprises one or more pressure monitor, thus reach can be with the mesh of wireless monitor
's.
With this understanding, the bearing capacity of pump is also greatly improved, can be more than 100 MPas, and after intensifying cylinder, reconvert becomes liquid
The output pressure of pressure energy method 10-30 times, the highest under the air pressure of 10 kilograms back and forth reaches 800 beats/min.
Embodiment 2:
With embodiment 1, but described eccentric orfice deviation changer lever through hole 0.5mm;Ensure there are 50 single holes when exchanging critical point
Air inlet (or other fluid), need guarantee to have 50 single hole aerofluxuss (or other fluid) simultaneously；When exchanging critical point at this, because of porous
Pressure and flow are more than single hole, although can cause slight pressure release, but can break through critical point under the effect of force rate；
With this understanding, the bearing capacity of pump is also greatly improved, can be more than 100 MPas, and after intensifying cylinder, reconvert becomes hydraulic energy
The output pressure of method 10-30 times, the highest under the air pressure of 10 kilograms back and forth reaches 600 beats/min.
Embodiment 3:
Contrast test:
With embodiment 1, but the deviation changer lever through hole 0.2mm of described eccentric orfice;Ensure there are 20 lists when exchanging critical point
Gas inlet hole (or other fluid), need guarantee to have 20 single hole aerofluxuss (or other fluid) simultaneously；When exchanging critical point at this, because of many
Pore pressure power and flow are more than single hole, although can cause slight pressure release, but can break through critical point under the effect of force rate；
With this understanding, the bearing capacity of pump is 80 MPas, and after intensifying cylinder, reconvert becomes the output pressure of hydraulic energy method 10 times,
But the highest under the air pressure of 10 kilograms back and forth reach 300 beats/min.
As can be seen here, the bias of eccentric orfice selects extremely important, the when of selecting 25-50 silk, can reach to expect not
To effect: pressure and flow holding capacity to reciprocating pump serve great raising effect, can run with hypervelocity, significantly drop
Low energy expenditure, is a kind of environmental protection new technique.
Embodiment 4:
After being applied to reciprocating pump because of position, the boundary ventilation valve of the present invention, the bearing capacity of pump can be greatly increased and move back and forth frequency
Rate, it is therefore necessary to be further improved the material of changer lever, to reach functions such as increasing the service life.Changer lever
Material can be rustless steel, copper, or corrosion-resistant plastic.
Present invention also offers a kind of biodegradable modified plastics of corrosion-resistant polylactic acid.
In recent years, polylactic acid is due to its excellent biodegradability, abundant source and good machining property
Paid close attention to widely.At present, as general thermoplastic polyester, polylactic acid is at different method for processing forming
Under can be prepared as thin film, sheet material, bar etc..Its fiber after the secondary operations such as thermoforming, spinning weaving, packaging, agricultural,
The field such as health care, daily living article the most increasingly extensive but front plastics industry circle, polylactic acid is referred to as most having prospect
" green plastic ", but polylactic acid heat resistance is poor, insufficient strength is high, and its application is limited by very large.
The improvement of the present embodiment a kind of enforcement of offer is possible: is modified polylactic acid plastic, is substantially improved its thermostability
Can and mechanical strength so that it can be applied to the changer lever of reciprocating pump of the present invention very well, has heat-resisting, good mechanical property,
Service life is long, and biodegradable, environmental friendliness, has very much market potential.
The described preparation method for the polydactyl acid plastics of changer lever is:
(1) raw material having configured dried according to following parts by weight: polylactic acid 20-30 part, chitosan powder 2-3 part, PHA 3
Part, nano imvite powder 2-4 part, acetate starch 2 parts, calcium carbonate powder 2 parts, metakaolin 1 part, CNT 0.3 part,
Attapulgite powder 0.3 part, bentonite 0.3 part；
(2) adjusting mill rotating speed is 6r/min, after being melted the most completely by the polylactic acid pellet weighed, uniformly adds
Entering chitosan powder and CNT, adjustment rotating speed is 18r/min, then is uniformly added into other all raw materials, and adjustment rotating speed is 20r/
Min, then stirring is blended 10min, makes raw material be sufficiently mixed uniformly；
(3) raw material mixed puts into double screw extruder while hot, extrudes through double screw extruder melt blending, and cooling is cut
Grain, then as raw material, makes the changer lever of the present invention according to size.
Its notch impact strength of the modified plastics of the present invention reaches 21 kJ/m2Above, heat distortion temperature brings up to 150 DEG C
Above, and corrosion-resistant, degradable, it is highly suitable for the changer lever of the reciprocating pump of the present invention, has heat-resisting, mechanical performance
Good, service life is long, and biodegradable, environmental friendliness, has very much market potential.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention is not limited thereto,
Any those familiar with the art in the technical scope that the invention discloses, according to technical scheme and
Inventive concept equivalent or change in addition, all should contain within protection scope of the present invention.
Claims (8)
1. position, boundary ventilation valve, it is characterised in that:
It is for the reciprocating pump of fluid source dynamic Control switching single plunger；
It is connected to the plunger switch unit of reciprocating pump by exhaust passage, and position, described boundary ventilation valve comprises back-moving spring (1),
Sealing ring (3), pressure relief vent (2)；
Wherein exhaust passage has 3,2 be positioned at ventilation valve sealing rings on, 1 be positioned at ventilation valve sealing ring it
Under；
Position, described boundary ventilation valve can allow plunger continue because of cannot exhaust pressure relief when, under force toward rising；
After position, boundary is broken through in plunger rising, under force, position, boundary ventilation valve rises, thus opens valve and be exhausted.
2. position, the boundary ventilation valve described in claim 1, it is characterised in that:
The reciprocating pump of wherein said fluid source dynamic Control switching single plunger includes with pump housing chamber for sealing with pump piston
The inner edge in the pump housing and the pump housing chamber that coordinate seal coordinate pump housing chamber is divided into the first pump housing chamber and the pump piston in the second pump housing chamber,
The first pump casing cover sealed and the second pump casing cover is combined with the pump housing, at the first or second of the pump housing at the pump housing the first end and the second end
Pump casing cover center offers piston rod through hole, and piston rod seals with piston rod through hole and coordinates and the most solid with the respective end of piston
Fixed connection, the pump piston side, chamber that the first pump casing cover is relative is first piston face, the pump piston side, chamber that the second pump casing cover is relative
It is the second piston area, it is characterised in that: described fluid flows to switching device and includes plunger switch unit and cut by this plunger
If changing the dry seal pipe that unit is tightly connected with the pump housing chamber in this pump housing, described plunger switch unit includes that inside has
The switching plunger cylinder of elongated plunger cavity, columnar changer lever, the first plunger block, the second plunger block, spaced seals,
One plunger cavity seals lid and the second plunger cavity seals lid, and the middle part that spaced seals is located in plunger cavity and plunger cavity are axially fixed
Position, spaced seals outer rim seals against each other with the inner edge of plunger cavity and coordinates, and is divided in the axial direction by cavity in the middle part of plunger cavity
First separate space of the annular of at least 3 spaced sealings, second separate space between separate space and the 3rd, and first separate space and
Second separate space, second there is between separate space between separate space and the 3rd certain thickness sealant, the second interval intracavity be provided with
The fluid inlet port that switching plunger cylinder outer surface is through, the middle part of spaced seals is provided with parallel with the axis direction of plunger cavity
Changer lever sliding eye, described first separate space, second separate space between separate space and the 3rd are equipped with between the radial direction of at least 1
Every through hole and changer lever sliding eye mutual conduction, changer lever is the structure of oval tubular, and this columnar structured center is provided with close
The plug of envelope, the cylinder chamber within columnar changer lever is divided into the first of the tubbiness of 2 spaced sealings to cut by this plug
Changing chamber and the second switching chamber, this changer lever is located at the changer lever sliding eye in the middle part of spaced seals Nei and sealing is slidably connected,
First plunger block and the second plunger block are fixing with changer lever respectively at the two ends of changer lever to be connected, and by the first of changer lever both sides
Between switching chamber and second, switching seals, and the first plunger block and the second plunger block outer rim seal against each other with the inner edge of plunger cavity and coordinate,
First cover of plunger and the second cover of plunger fix with switching plunger cylinder and airtight shape is connected, the first cover of plunger and the first plunger block it
Between plunger cavity be the first plunger cavity, the plunger cavity between the first plunger block and spaced seals is separate space between the first plunger,
Plunger cavity between two cover of plungers and the second plunger block is the second plunger cavity, the plunger between the second plunger block and spaced seals
Chamber is separate space between the second plunger, and changer lever tubbiness face is provided with some groups of changer lever through holes, often group changer lever through hole radius be r and
The center of circle is distributed in the same plane being perpendicular to changer lever axis, and some groups of described changer lever through holes are along the first switching chamber to the
The axis direction in two switching chambeies, includes being distributed in the first row changer lever through hole of the first switching intracavity, second row changer lever successively
Through hole, and it is distributed in the 3rd row's changer lever through hole and the 4th row's changer lever through hole, the described changer lever of the second switching intracavity
The through lateral surface to changer lever of through hole, when the first plunger block and the first cover of plunger are closely pressed close to, on the right side of the plug in changer lever
Edge is less than the right side edge of first separate space, and first row changer lever through hole edge is without departing from the sealing on the left of the first switching chamber
Interval, when the second plunger block and the second cover of plunger are closely pressed close to, the plug left side edge in changer lever is less than the 3rd separate space
Left side edge, the 4th row's changer lever through hole edge is without departing from the sealed spacer on the right side of the 3rd separate space, and first row changer lever leads to
The distance at Kong Yu tetra-row's changer lever through hole center less than the width c of spaced seals, second row changer lever through hole edge and the
Nearest distance between three row's changer lever through hole edges is more than the width of separate space between second, and the second piston area is adjacent to second pump housing
During lid medial surface, 1a seals pipe one end to be run through the first pump casing cover and the first pump housing chamber and turns on, the 1a sealing pipe other end and the
One separate space conducting, 1b seals pipe one end and is turning on the first pump housing chamber at first piston face, and the other end runs through second
Cover of plunger and the conducting of the second plunger cavity, when first piston face is adjacent to the first pump casing cover medial surface, 2a seals pipe one end and runs through the
Two pump casing covers and the conducting of the second pump housing chamber, 2a seals separate space conducting between the pipe other end and the 3rd, and 2b seals pipe one end and leaning on
With the second pump housing chamber conducting at nearly second piston area, the other end runs through the second cover of plunger and the conducting of the first plunger cavity, and 3a seals
Being provided with the outlet with turned on outside in the middle part of pipe, two ends are respectively and between the first plunger, between separate space and the second plunger, separate space turns on, the
3b seals pipe one end and runs through turning on pump housing chamber around discharge orifice of the pump housing, the other end and big conductance by the midpoint being located at pump housing chamber
Logical, the periphery of its centre inwardly concaves the piston groove being formed with annular, this toroidal piston groove and body cavity inner edge
Constituting the plunger shaft sealed, this piston groove is plunger shaft width h with the distance of contact position, body cavity inner edge, between side face of piston ring
Distance be piston width H, after assembling, the distance between the first pump casing cover and the second pump casing cover medial surface is pump housing chamber width L,
Relation is L < H+h；
It is additionally provided with at least 1 center of circle between described second row changer lever through hole and the 3rd row's changer lever through hole to be located normal to cut
Changing in the same plane of rod axis, radius is the additional-air inlet eccentric orfice of r1, and this auxiliary eccentric orfice is located at the first switching intracavity
Between two row's changer lever through holes and changer lever and plug；
It is additionally provided with at least 1 center of circle between the 4th described row's changer lever through hole and is located normal to the same plane of changer lever axis
In, radius is that the auxiliary of r1 is given vent to anger eccentric orfice, and this auxiliary eccentric orfice is located at first switching intracavity the 4th row's changer lever through hole and cuts
Change between bar and plug.
3. position, the boundary ventilation valve described in claim 2, it is characterised in that:
The deviation changer lever through hole 25-50 silk of described eccentric orfice, i.e. ensures there is 25-50 silk single hole air inlet when exchanging critical point
(or other fluid), need guarantee to have 25-50 silk single hole aerofluxus (or other fluid) simultaneously；When exchanging critical point at this, because of porous
Pressure and flow are more than single hole, although can cause slight pressure release, but can break through critical point under the effect of force rate.
4. position, the boundary ventilation valve described in any one of claim 2-3, it is characterised in that:
Eccentric orfice and a diameter of 2.0mm of changer lever through hole.
5. a reciprocating pump for fluid source dynamic Control switching single plunger, it contains the position, boundary described in any one of claim 1-3
Ventilation valve.
6. the application on draw-off pump, oil syringe, grease gun of the reciprocating pump described in claim 5.
7. the reciprocating pump described in claim 5, the material of its changer lever is rustless steel, copper, or corrosion-resistant plastic.
8. the reciprocating pump described in claim 7, the wherein said preparation method for the polydactyl acid plastics of changer lever is:
(1) raw material having configured dried according to following parts by weight: polylactic acid 20-30 part, chitosan powder 2-3 part, PHA 3
Part, nano imvite powder 2-4 part, acetate starch 2 parts, calcium carbonate powder 2 parts, metakaolin 1 part, CNT 0.3 part,
Attapulgite powder 0.3 part, bentonite 0.3 part；
(2) adjusting mill rotating speed is 6r/min, after being melted the most completely by the polylactic acid pellet weighed, uniformly adds
Entering chitosan powder and CNT, adjustment rotating speed is 18r/min, then is uniformly added into other all raw materials, and adjustment rotating speed is 20r/
Min, then stirring is blended 10min, makes raw material be sufficiently mixed uniformly；
(3) raw material mixed puts into double screw extruder while hot, extrudes through double screw extruder melt blending, and cooling is cut
Grain, then as raw material, makes the changer lever of the present invention according to size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610559494.6A CN106089682A (en) | 2016-07-15 | 2016-07-15 | Position, a kind of boundary ventilation valve and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610559494.6A CN106089682A (en) | 2016-07-15 | 2016-07-15 | Position, a kind of boundary ventilation valve and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106089682A true CN106089682A (en) | 2016-11-09 |
Family
ID=57220339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610559494.6A Pending CN106089682A (en) | 2016-07-15 | 2016-07-15 | Position, a kind of boundary ventilation valve and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106089682A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2457363Y (en) * | 2000-12-26 | 2001-10-31 | 李东阳 | Improved pneumatic two-way high-pressure liquid pump |
| US20070071614A1 (en) * | 2005-09-29 | 2007-03-29 | Denso Corporation | Fluid pump having plunger and method of monoblock casting for housing of the same |
| CN103590994A (en) * | 2013-10-22 | 2014-02-19 | 徐方亮 | Reciprocating pump with single plunger switched by fluid source power control |
| CN203476627U (en) * | 2013-09-18 | 2014-03-12 | 徐伟刚 | Energy-saving high-pressure pump |
| CN104818543A (en) * | 2015-04-16 | 2015-08-05 | 长兴永鑫纺织印染有限公司 | Modified polylactic acid fiber excellent in performance |
-
2016
- 2016-07-15 CN CN201610559494.6A patent/CN106089682A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2457363Y (en) * | 2000-12-26 | 2001-10-31 | 李东阳 | Improved pneumatic two-way high-pressure liquid pump |
| US20070071614A1 (en) * | 2005-09-29 | 2007-03-29 | Denso Corporation | Fluid pump having plunger and method of monoblock casting for housing of the same |
| CN203476627U (en) * | 2013-09-18 | 2014-03-12 | 徐伟刚 | Energy-saving high-pressure pump |
| CN103590994A (en) * | 2013-10-22 | 2014-02-19 | 徐方亮 | Reciprocating pump with single plunger switched by fluid source power control |
| CN104818543A (en) * | 2015-04-16 | 2015-08-05 | 长兴永鑫纺织印染有限公司 | Modified polylactic acid fiber excellent in performance |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102162434B (en) | Double-cylinder plunger pump | |
| CN101865100A (en) | Multi-cylinder radial piston pump | |
| CN106368926B (en) | A kind of multi-stage air compressor | |
| CN108167152B (en) | Hydraulic drive reciprocating pump | |
| CN102886912A (en) | Rotating plunger type biomass briquetting machine | |
| CN106089682A (en) | Position, a kind of boundary ventilation valve and application thereof | |
| CN201554646U (en) | Water lubrication screw air compressor | |
| CN201650840U (en) | Axially moving double-end face mechanical seal for pumps | |
| CN105179540B (en) | The flat spring and the compressor using the flat spring of fan-shaped spring arm and its composition | |
| CN102688720B (en) | High-pressure sterilizing and homogenizing machine for fluid products | |
| CN105697183A (en) | Piston body oil chamber sealing device | |
| CN104481837B (en) | Coplanar symmetrical piston is by the compressor that is connected with guide groove notch board | |
| CN202100464U (en) | Rotary compressor | |
| CN104912769B (en) | Piston type compressor | |
| CN208281137U (en) | A kind of middle pressure, oilless air compressor | |
| CN103671087A (en) | Pumps with revolving piston structure, related products and part of embodiments | |
| CN214741883U (en) | Swash plate type tailing slurry conveying metering pump for laboratory | |
| CN101907092B (en) | Conjugated sleeve pump | |
| CN201292923Y (en) | Positive and negative rotating axial plunger pump | |
| CN204082528U (en) | Novel internal messing gear pump with variable capacity | |
| CN102235378A (en) | Axial moving dual-end-surface mechanical seal for pump | |
| CN105545808A (en) | Leakproof alcohol pump | |
| CN107044411B (en) | A kind of plunger pump valve group and the opposed type plunger pump using the valve group | |
| CN203570521U (en) | Reciprocating pump with single plunger controlled to be switched by fluid source power | |
| CN214742461U (en) | Multi-section air cylinder for welding machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161109 |