CN110242581B - Self priming pump convenient to dismouting and work efficiency are high - Google Patents
Self priming pump convenient to dismouting and work efficiency are high Download PDFInfo
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- CN110242581B CN110242581B CN201910607560.6A CN201910607560A CN110242581B CN 110242581 B CN110242581 B CN 110242581B CN 201910607560 A CN201910607560 A CN 201910607560A CN 110242581 B CN110242581 B CN 110242581B
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- priming pump
- pump
- pump body
- priming
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- 230000037452 priming Effects 0.000 title claims description 25
- 238000000926 separation method Methods 0.000 claims abstract description 41
- 239000007788 liquid Substances 0.000 claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 238000007789 sealing Methods 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000005457 optimization Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/12—Shaft sealings using sealing-rings
- F04D29/126—Shaft sealings using sealing-rings especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/24—Vanes
- F04D29/242—Geometry, shape
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D9/00—Priming; Preventing vapour lock
- F04D9/02—Self-priming pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a self-priming pump which is convenient to disassemble and assemble and high in working efficiency, and the self-priming pump comprises a self-priming pump body, a semi-open impeller, a check valve assembly, a sleeve type pump shaft, a waterproof hole plug, a diversion type leading-out connecting pipe, a pump cover, a motor connecting frame and a direct-connection motor. The beneficial effects of the invention are as follows: the self-priming pump has the advantages that the outlet pipe threads are adopted at the outlet of the self-priming pump body and are fixedly connected with the diversion type leading-out connecting pipe through threads, so that the diversion type leading-out connecting pipe is more stable and firm in work and use, and meanwhile, the diversion type leading-out connecting pipe is more convenient to mount or dismount and maintain; the upper end of the diversion type leading-out connecting pipe is provided with a plurality of tooth-shaped grooves, so that the rubber pipe can be conveniently and quickly connected. The diversion type leading-out connecting pipe is close to the upper end of the vapor-liquid separation chamber cavity, a vapor discharge hole is formed, one part of gas is discharged through the outlet pipe, and on the other hand, the rest gas is discharged into the vapor-liquid separation chamber cavity, so that rapid self-suction is realized.
Description
Technical Field
The invention relates to a self-priming pump, in particular to a self-priming pump which is convenient to disassemble and assemble and high in working efficiency, and belongs to the technical field of self-priming pump application.
Background
After the self-priming pump is started, air in the suction pipeline is fully mixed with water due to the rotation effect of the impeller and is discharged to the steam-water separation chamber, gas at the upper part of the steam-water separation chamber is discharged, liquid at the lower part returns to the impeller again to be mixed with the gas in the suction pipeline, and thus the self-priming pump is continuously circulated, and the air in the pump and the suction cavity is completely discharged.
The existing self-priming pump still has many defects when in use, the waterproof hole plug, the rubber pipe and the diversion type leading-out connecting pipe on the existing self-priming pump are inconvenient and quick enough when in installation and use or disassembly, so that the self-priming pump is high in cost and inconvenient to use when in processing and assembly, and the existing self-priming pump is high in power consumption and high in cost when in operation.
Disclosure of Invention
The invention aims to solve the problems that the waterproof hole plug, the rubber pipe and the diversion type leading-out connecting pipe on the existing self-priming pump are inconvenient and quick to install and use or disassemble, so that the self-priming pump has high cost in processing and assembling and inconvenient to use; the existing self-priming pump has high power consumption and high cost when in operation; workers often cut impellers in the pump body to reduce the lift, so that the power consumption of the self-priming pump is reduced when the self-priming pump works, and the impellers are extremely easy to damage, so that the service life of the whole self-priming pump is reduced; the self-priming working efficiency of the existing self-priming pump is low; the connection firmness of the self-priming pump and the motor connecting frame is poor, so that the working stability of the self-priming pump is poor; the problem of the holistic leakproofness of current self priming pump is relatively poor, and proposes a self priming pump that is convenient for dismouting and work efficiency are high.
The aim of the invention can be achieved by the following technical scheme: the utility model provides a self priming pump convenient to dismouting and work efficiency are high, includes self priming pump body, semi-open impeller, check valve subassembly, telescopic pump shaft, waterproof hole stopper, water conservancy diversion formula draw-out take over, pump cover, motor link and direct-connected motor, pump body one end below is provided with hand nut, just run through in the hand nut and install waterproof hole stopper, hand nut sets up at vapour-water separation chamber cavity lower extreme, direct-connected motor one end is provided with the motor link vertically, just self priming pump body passes through pump cover and motor link fixed connection, and the one end cover of main shaft on the direct-connected motor is equipped with telescopic pump shaft, telescopic pump shaft one end is provided with the semi-open impeller, vertically inlay between self priming pump body and the semi-open impeller and be equipped with impeller front cover welt, be provided with the clearance between impeller front cover welt and the semi-open impeller front cover plate clearance, this clearance increases through impeller front cover welt, and the pump lift descends, thereby this self priming pump's consumption descends, avoids reducing through cutting impeller and causes the problem that self priming performance descends, and on the other hand can not receive the cost when guaranteeing that the self priming pump can not receive work on the one hand;
Wherein, the waterproof hole plug is internally provided with an internal thread, and the waterproof hole plug is fixedly connected with the waterproof hole plug by the internal thread in a threaded manner;
An inlet pipe thread is arranged at the edge of the inlet of the self-priming pump body, and a check valve component is arranged at the inner side of the inlet of the pump body;
the pump body outlet of the self-priming pump body is provided with outlet pipe threads, the outlet pipe threads are connected with guide type leading-out connecting pipes of a hollow cylindrical structure through threads, a plurality of annular tooth-shaped grooves are formed in the upper end of the outer wall of each guide type leading-out connecting pipe at equal intervals, steam discharging holes are formed in the upper ends, close to the steam-liquid separation chamber, of each guide type leading-out connecting pipe, one part of gas is discharged through the outlet pipe, and on the other hand, the rest of gas is discharged into the steam-liquid separation chamber, so that quick self-priming is realized;
The two ends of the pump cover are respectively provided with a disc, the discs at one end of the pump cover are connected with the motor connecting frame, the discs at the other end of the pump cover are connected with the self-priming pump body, three rib plates are vertically connected between the two discs and are respectively arranged at the left side, the right side and the lower side between the two discs, and the firmness of the connection between the pump cover and the pump body and the motor connecting frame is higher while the integral sealing performance of the self-priming pump is improved;
The pump cover is internally provided with an organic sealing cavity and a framework oil seal structure, the mechanical sealing cavity and the framework oil seal structure are internally embedded with a mechanical seal and a framework oil seal structure respectively, the pump cover is internally provided with the mechanical seal cavity and the framework oil seal structure, the mechanical seal and the framework oil seal are convenient to install, double-layer sealing is formed, the integral sealing performance of the self-priming pump is improved, the firmness of connection between the pump cover and the pump body and between the pump body and the motor connecting frame is higher, the working stability of the self-priming pump is guaranteed, and the service life of the self-priming pump is prolonged.
The invention further technically improves that: the manual nut is sleeved with Kong Saidian, two ends of the hole plug pad are respectively connected with one side wall of one end of the self-priming pump body in a fitting mode, and the manual nut and the self-priming pump body are ensured to be more fastened and firm through the hole plug pad.
The invention further technically improves that: the anti-loosening impeller nut is arranged at the joint of the semi-open impeller and the sleeve type pump shaft, the semi-open impeller is fixed through the anti-loosening impeller nut, the semi-open impeller is ensured to be firmer during operation, and keys are arranged on two sides of the joint of one end of the sleeve type pump shaft and the semi-open impeller.
The invention further technically improves that: the direct-connected motor is rotationally connected with the semi-open impeller through a sleeve type pump shaft, and the sleeve type pump shaft penetrates through the pump cover.
The invention further technically improves that: an organic sealing locating sleeve is arranged between the mechanical seal and the framework oil seal, and the organic sealing locating sleeve is of a hollow structure.
The invention further technically improves that: the plane that impeller protecgulum welt and semi-open impeller place is parallel arrangement, and adjustable and semi-open impeller protecgulum clearance through impeller protecgulum welt, this clearance increase, the pump lift descends to this self priming pump's power consumption descends, avoids reducing the lift through cutting impeller, causes the problem that self priming performance descends, guarantees on the one hand that the impeller can not receive the damage, on the other hand, has saved the cost of this self priming pump during operation, and telescopic pump shaft and semi-open impeller are perpendicular setting, guarantee that semi-open impeller is more steady, smooth when rotating.
The using method of the self-priming pump specifically comprises the following steps:
Step one: after the self-priming pump is started, the direct-connected motor drives the semi-open impeller to rotate through the sleeve pump shaft, air sucked into the pipeline from the inlet of the pump body is fully mixed with water and is discharged to the steam-water separation chamber, gas at the upper part of the steam-water separation chamber is discharged, liquid at the lower part returns to the semi-open impeller again to be mixed with the gas sucked into the pipeline, and thus the gas is continuously circulated, and the self-priming pump body and the gas sucked into the cavity are completely discharged;
Step two: the self-priming pump body is provided with a waterproof hole plug at the lower end of the steam-water separation chamber cavity and is fixed by a hand tightening nut, an impeller front cover lining plate is arranged at the position of the self-priming pump body close to the semi-open impeller, a gap between the self-priming pump body and the semi-open impeller front cover plate is adjusted through the impeller front cover lining plate, the gap is increased, and the lift of the self-priming pump is reduced;
Step three: an outlet pipe thread is adopted at the outlet of the self-priming pump body, the self-priming pump body is fixedly connected with a diversion type leading-out connecting pipe through threads, a rubber pipe is connected through a plurality of tooth-shaped grooves at the upper end of the diversion type leading-out connecting pipe, a steam exhaust hole is formed at the upper end of the diversion type leading-out connecting pipe, which is close to the steam-liquid separation chamber, part of gas is discharged through the outlet pipe, and on the other hand, the rest gas is discharged into the steam-liquid separation chamber, so that quick self priming is realized;
Step four: a disc at one end of a pump cover of the self-priming pump is connected with a motor connecting frame, the disc at one end of the pump cover is connected with a self-priming pump body, and a mechanical seal and a framework oil seal are respectively installed through a mechanical seal cavity and a framework oil seal structure which are arranged in the pump cover to form double-layer seal.
Compared with the prior art, the invention has the beneficial effects that:
1. The pump body is provided with the waterproof hole plug at the lower end of the steam-water separation chamber cavity, the waterproof hole plug is fixed by the hand-tightening nut, the waterproof hole plug penetrates through the hand-tightening nut, the hand-tightening nut is in threaded connection with the outer wall of the waterproof hole plug through the internal thread, the hand-tightening nut is adopted, the waterproof hole plug can be detached without a spanner, the waterproof hole plug is more convenient to install and detach, the inlet of the pump body is in threaded connection with the inlet pipe and is provided with the check valve, the front cover lining plate of the impeller is arranged at the position, close to the impeller, of the pump body, the gap between the front cover lining plate of the impeller and the semi-open impeller is adjustable, the gap is increased, and the pump lift is reduced, so that the power consumption of the self-sucking pump is reduced, the problem of reducing the self-sucking performance caused by cutting the impeller is avoided, on one hand, the impeller is not damaged, and on the other hand, the cost of the self-sucking pump in working is saved.
2. The invention adopts a diversion type leading-out connecting pipe at the outlet of the self-priming pump body, the lower end of the connecting pipe stretches into the position of the vapor-liquid separation chamber inside the pump shell, which is close to the pumping chamber, when the water level of the vapor-liquid separation chamber submerges the lower end of the diversion type leading-out connecting pipe, kinetic energy is thrown out by liquid, and the liquid is discharged out of the pump chamber through the leading-out connecting pipe. In addition, the connecting pipe is provided with an exhaust hole at the upper end position close to the gas-liquid separation chamber in the pump shell, one part of the gas-liquid mixture is discharged through an outlet pipe, and the other part of the gas-liquid mixture is discharged into the gas-liquid separation chamber, so that the rapid self-priming function is realized, and the gas-liquid separation chamber of the pump body is not required to be submerged by liquid level, so that the water discharging function can be realized. The water conservancy diversion formula is drawn forth and is taken over the upper end and establish and use a plurality of tooth grooves, and the swift rubber tube of being convenient for, and a plurality of tooth grooves mutually support and fix the rubber tube joint, guarantee that the rubber tube is installed fixedly and is used more firmly, and very make things convenient for the rubber tube to dismantle and mount. The diversion type leading-out connecting pipe is close to the upper end of the vapor-liquid separation chamber cavity, a vapor discharge hole is formed, one part of gas is discharged through the outlet pipe, and on the other hand, the rest gas is discharged into the vapor-liquid separation chamber cavity, so that rapid self-suction is realized.
3. One end disc of the pump cover of the self-priming pump is connected with the motor connecting frame, one end disc is connected with the pump body, three rib plates are connected between the two discs, the three rib plates are uniformly distributed at the left side, the right side and the lower side between the two discs, and a mechanical seal cavity and a framework oil seal structure are arranged in the pump cover, so that mechanical seal and framework oil seal are convenient to install, double-layer seal is formed, the integral sealing performance of the self-priming pump is improved, the firmness of connection between the pump cover and the pump body as well as the motor connecting frame is higher, the working stability of the self-priming pump is ensured, and the service life of the self-priming pump is prolonged. The self-priming pump is convenient to operate, firm, durable, good in social benefit and suitable for popularization and use.
Drawings
The present invention is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.
FIG. 1 is a schematic overall cross-sectional view of the present invention.
Fig. 2 is a schematic cross-sectional view of the hand tightening nut of the present invention.
In the figure: 1. tightening the nut by hand; 2. waterproof hole plugs; 3. kong Saidian; 4. an impeller front cover lining board; 5. a locknut; 6. a key; 7. a semi-open impeller; 8. inlet pipe threads; 9. a check valve assembly; 10. self-priming pump body; 11. an outlet pipe thread; 12. a diversion type leading-out connecting pipe; 13. a pump cover; 14. mechanical sealing; 15. a mechanical seal positioning sleeve; 16. a framework oil seal; 17. a sleeve pump shaft; 18. a motor connecting frame; 19. a direct-connected motor; 20. a tooth-shaped groove; 21. and (5) an internal thread.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-2, a self-priming pump with convenient disassembly and assembly and high working efficiency comprises a self-priming pump body 10, a semi-open impeller 7, a check valve assembly 9, a sleeve pump shaft 17, a waterproof hole plug 2, a diversion type leading-out connecting pipe 12, a pump cover 13, a motor connecting frame 18 and a direct motor 19, wherein a hand tightening nut 1 is arranged below one end of the pump body 10, the waterproof hole plug 2 is installed in the hand tightening nut 1 in a penetrating manner, the hand tightening nut 1 is arranged at the lower end of a steam-water separation chamber, the direct motor 19 is vertically provided with the motor connecting frame 18 at one end, the self-priming pump body 10 is fixedly connected with the motor connecting frame 18 through the pump cover 13, a sleeve pump shaft 17 is sleeved at one end of a main shaft on the direct motor 19, the self-priming pump shaft 17 is provided with the semi-open impeller 7, a gap is arranged between the self-priming pump body 10 and the semi-open impeller 7 in a vertical embedding manner, the front impeller cover liner 4 is arranged through the front impeller front cover 4, the gap between the front impeller liner 4 and the front half-open impeller liner is adjustable, the gap between the front impeller liner and the front cover plate is increased, the pump lift is reduced, so that the self-priming pump can be driven down by the suction head is reduced, the cost is reduced by the cutting pump body, and the self-priming pump is prevented from being damaged by the water pump from being deeply separated from the water pump cavity. The caliber of the connecting pipe is equivalent to the throat area of the pumping chamber in the pump shell. The connecting pipe is provided with an exhaust hole at the upper end of the gas-liquid separation chamber in the pump shell, when the impeller rotates, part of liquid and gas mixture is discharged through the outlet pipe, and the other part of liquid and gas mixture is discharged into the gas-liquid separation chamber through the hole, so that the gas-liquid separation chamber circulates, and the rapid self-priming function is realized;
Wherein, the inside of the waterproof hole plug 2 is provided with an internal thread 21, and the waterproof hole plug 2 is fixedly connected with the waterproof hole plug 2 by the internal thread 21 in a threaded manner;
An inlet pipe thread 8 is arranged at the edge of the inlet of the self-priming pump body 10, and a check valve component 9 is arranged at the inner side of the inlet of the pump body;
The pump body outlet of the self-priming pump body 10 is provided with outlet pipe threads 11, the outlet pipe threads 11 are connected with a diversion type leading-out connecting pipe 12 with a hollow cylindrical structure through threads, a plurality of annular tooth-shaped grooves 20 are formed at the upper end of the outer wall of the diversion type leading-out connecting pipe 12 at equal intervals, a steam exhaust hole is formed at the upper end of the diversion type leading-out connecting pipe 12, which is close to the steam-liquid separation chamber, part of gas is discharged through the outlet pipe, and on the other hand, the rest of gas is discharged into the steam-liquid separation chamber, so that quick self-priming is realized;
The two ends of the pump cover 13 are respectively provided with a disc, the disc at one end of the pump cover 13 is connected with the motor connecting frame 18, the disc at the other end of the pump cover 13 is connected with the self-priming pump body 10, three rib plates are vertically connected between the two discs and are respectively arranged at the left, right and lower parts between the two discs, so that the whole sealing performance of the self-priming pump is improved, and meanwhile, the firmness of the connection between the pump cover 13 and the pump body and the motor connecting frame 19 is higher;
Wherein, inside organic seal chamber and the skeleton oil blanket structure of being provided with of pump cover 13, mechanical seal 14 and skeleton oil blanket 16 are inlayed respectively to inside mechanical seal chamber and the skeleton oil blanket structure of being equipped with of the inside, mechanical seal 14 and the skeleton oil blanket structure of being convenient for of pump cover 13, form double-deck sealedly, when having improved the holistic sealing performance of this self priming pump, make the fastness that pump cover 13 and the pump body are connected with motor connection frame 19 again higher, guaranteed the stability of this self priming pump work, and improved the life of this self priming pump.
As a technical optimization scheme of the self-priming pump body 10, kong Saidian is sleeved on the hand tightening nut 1, two ends of the hole plug pad 3 are respectively connected with one end side wall of the self-priming pump body 10 in a fitting mode, and the hand tightening nut 1 and the self-priming pump body 10 are ensured to be more fastened and firmer through the hole plug pad 3.
As a technical optimization scheme of the invention, a locknut 5 is arranged at the joint of the semi-open impeller 7 and the sleeve-type pump shaft 17, the semi-open impeller 7 is fixed through the locknut 5, the semi-open impeller 7 is ensured to be firmer during working, and keys 6 are arranged at two sides of the joint of one end of the sleeve-type pump shaft 17 and the semi-open impeller 7.
As a technical optimization scheme of the invention, the direct-connected motor 19 is rotationally connected with the semi-open impeller 7 through the sleeve-type pump shaft 17, and the sleeve-type pump shaft 17 penetrates through the pump cover 13.
As a technical optimization scheme of the invention, an organic sealing positioning sleeve 15 is arranged between the mechanical seal 14 and the framework oil seal 16, and the organic sealing positioning sleeve 15 is of a hollow structure.
As a technical optimization scheme of the self-priming pump, the plane where the impeller front cover lining plate 4 and the semi-open impeller 7 are arranged is parallel, the gap between the impeller front cover lining plate 4 and the semi-open impeller front cover plate is adjustable, the gap is increased, the pump lift is reduced, so that the power consumption of the self-priming pump is reduced, the problem of reduced self-priming performance caused by the reduction of the lift by cutting the impeller is avoided, on one hand, the impeller is not damaged, on the other hand, the cost of the self-priming pump in operation is saved, the sleeve pump shaft 17 is arranged vertically to the semi-open impeller 7, and the fact that the semi-open impeller 7 rotates more stably and smoothly is ensured.
The using method of the self-priming pump specifically comprises the following steps:
step one: after the self-priming pump is started, the direct-connected motor 19 drives the semi-open impeller 7 to rotate through the sleeve pump shaft 17, air sucked into the pipeline from the inlet of the pump body is fully mixed with water and is discharged to the steam-water separation chamber, gas at the upper part of the steam-water separation chamber is discharged, liquid at the lower part returns to the semi-open impeller 7 again to be mixed with the gas sucked into the pipeline, and thus the gas is continuously circulated, and the gas from the self-priming pump body 10 and the suction cavity is completely discharged;
step two: the self-priming pump body 10 is provided with a waterproof hole plug 2 at the lower end of the steam-water separation chamber cavity, and is fixed by a hand-tightening nut 1, an impeller front cover lining plate 4 is arranged at the position of the self-priming pump body 10 close to the semi-open impeller 7, and the clearance between the self-priming pump body 10 and the semi-open impeller front cover plate is adjusted through the impeller front cover lining plate 4, so that the clearance is increased, and the lift of the self-priming pump is reduced;
Step three: an outlet pipe thread 11 is adopted at the outlet of the self-priming pump body, the self-priming pump body is fixedly connected with a diversion type leading-out connecting pipe 12 through threads, a rubber pipe is connected through a plurality of tooth-shaped grooves 20 at the upper end of the diversion type leading-out connecting pipe 12, a steam discharging hole is formed at the upper end of the diversion type leading-out connecting pipe 12, which is close to the steam-liquid separation chamber, part of gas is discharged through the outlet pipe, and on the other hand, the rest gas is discharged into the steam-liquid separation chamber, so that quick self priming is realized;
Step four: one end disc of a pump cover 13 of the self-priming pump is connected with a motor connecting frame 18, the other end disc is connected with the self-priming pump body 10, and a mechanical seal 14 and a framework oil seal 16 are respectively installed through a mechanical seal cavity and a framework oil seal structure which are arranged in the pump cover 13 to form double-layer sealing.
Compared with the prior art, the invention has the beneficial effects that:
1. The pump body is provided with the waterproof hole plug 2 at the lower end of the steam-water separation chamber cavity, the waterproof hole plug 2 is fixed by the hand tightening nut 1, the hand tightening nut 1 is in threaded connection with the outer wall of the waterproof hole plug 2 through an internal thread, the hand tightening nut 1 is adopted to be disassembled without a spanner, the waterproof hole plug 2 is more convenient to assemble and disassemble, the inlet of the pump body is connected through the inlet pipe thread 8 and is provided with the check valve 9, the position of the pump body, which is close to the impeller 7, is provided with the impeller front cover lining plate 4, the gap between the pump body and the semi-open impeller front cover plate is adjustable through the impeller front cover lining plate 4, the gap is increased, and the pump lift is reduced, so that the power consumption of the self-sucking pump is reduced, the problem of reducing the self-sucking performance caused by cutting the impeller is avoided, the impeller is not damaged on one hand, and the cost of the self-sucking pump is saved on the other hand.
2. According to the self-priming pump, the outlet pipe threads 11 are adopted at the outlet of the self-priming pump body and are fixedly connected with the diversion type leading-out connecting pipe 12 through threads, so that the diversion type leading-out connecting pipe 12 is more stable and firm in operation and use, and meanwhile, the diversion type leading-out connecting pipe 12 is more convenient to mount or dismount and maintain; the upper end of the diversion type leading-out connecting pipe 12 is provided with a plurality of tooth-shaped grooves 20, so that the rubber pipe is conveniently and quickly connected, the tooth-shaped grooves 20 are mutually matched and fixed on the rubber pipe in a clamping manner, the rubber pipe is ensured to be more firmly installed, fixed and used, and the rubber pipe is quite convenient to disassemble and assemble. The diversion type leading-out connecting pipe 12 is close to the upper end of the gas-liquid separation chamber cavity, is provided with a steam exhaust hole, and one part of gas is discharged through an outlet pipe, and on the other hand, the rest gas is discharged into the gas-liquid separation chamber cavity, so that quick self-suction is realized.
3. The pump cover 13 of self priming pump one end disc links to each other with motor link 18, and one end disc links to each other with the pump body, has three floor to be connected between two discs, and three floor evenly distributed is left, right and below between two discs, and establishes quick-witted seal chamber and skeleton oil blanket structure in the pump cover 13, is convenient for install mechanical seal 14 and skeleton oil blanket 16, forms double-deck sealedly, when having improved the holistic sealing performance of this self priming pump, makes the fastness that pump cover 13 and the pump body are connected with motor link 19 higher again, has guaranteed the stability of this self priming pump work, and has improved the life of this self priming pump. The self-priming pump is convenient to operate, firm, durable, good in social benefit and suitable for popularization and use.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (5)
1. Self priming pump convenient to dismouting and work efficiency are high, its characterized in that: the self-priming pump comprises a self-priming pump body (10), a semi-open impeller (7), a check valve assembly (9), a sleeve-type pump shaft (17), a waterproof hole plug (2), a guide type leading-out connecting pipe (12), a pump cover (13), a motor connecting frame (18) and a direct-connection motor (19), wherein a hand tightening nut (1) is arranged below one end of the pump body (10), the waterproof hole plug (2) is arranged in the hand tightening nut (1) in a penetrating manner, the hand tightening nut (1) is arranged at the lower end of a steam-water separation chamber, the motor connecting frame (18) is vertically arranged at one end of the direct-connection motor (19), the self-priming pump body (10) is fixedly connected with the motor connecting frame (18) through the pump cover (13), the sleeve-type pump shaft (17) is sleeved at one end of a main shaft on the direct-connection motor (19), the semi-open impeller (7) is arranged at one end of the sleeve-type pump shaft (17), an impeller front cover lining plate (4) is vertically embedded between the pump body (10) and the semi-open impeller (7), and a front cover plate of the self-priming pump body (7) is provided with a gap;
Wherein, the inside of the hand-tightening nut (1) is provided with an internal thread (21), and the waterproof hole plug (2) is in threaded connection and fixation with the hand-tightening nut (1) through the internal thread (21);
an inlet pipe thread (8) is arranged at the edge of the inlet of the self-priming pump body (10), and a check valve assembly (9) is arranged at the inner side of the inlet of the pump body;
The self-priming pump is characterized in that an outlet pipe thread (11) is arranged at the outlet of the pump body of the self-priming pump body (10), the outlet pipe thread (11) is connected with a diversion type leading-out connecting pipe (12) with a hollow cylindrical structure through threads, a plurality of annular tooth-shaped grooves (20) are formed at the upper end of the outer wall of the diversion type leading-out connecting pipe (12) at equal intervals, and a steam exhaust hole is formed at the upper end, close to a steam-liquid separation chamber, of the diversion type leading-out connecting pipe (12);
The two ends of the pump cover (13) are respectively provided with a disc, the discs at one end of the pump cover (13) are connected with a motor connecting frame (18), the discs at the other end of the pump cover (13) are connected with the self-priming pump body (10), three rib plates are vertically connected between the two discs, and the three rib plates are respectively arranged at the left side, the right side and the lower side between the two discs;
The pump cover (13) is internally provided with an organic sealing cavity and a framework oil seal structure, and the mechanical sealing cavity and the framework oil seal structure are internally embedded with a mechanical seal (14) and a framework oil seal (16) respectively;
Kong Saidian (3) is sleeved on the hand tightening nut (1), and two ends of the hole plug pad (3) are respectively connected with one end side wall of the self-priming pump body (10) in a fitting manner;
The anti-loosening impeller nut (5) is arranged at the joint of the semi-open impeller (7) and the sleeve type pump shaft (17), and keys (6) are arranged on two sides of the joint of one end of the sleeve type pump shaft (17) and the semi-open impeller (7).
2. The self-priming pump with convenient disassembly and assembly and high working efficiency according to claim 1, wherein the direct-connected motor (19) is rotationally connected with the semi-open impeller (7) through a sleeve pump shaft (17), and the sleeve pump shaft (17) penetrates through the pump cover (13).
3. The self-priming pump with convenient disassembly and assembly and high working efficiency according to claim 1, wherein an organic sealing positioning sleeve (15) is arranged between the mechanical seal (14) and the framework oil seal (16), and the organic sealing positioning sleeve (15) is of a hollow structure.
4. The self-priming pump with convenient disassembly and assembly and high working efficiency according to claim 1, wherein the plane where the impeller front cover lining plate (4) and the semi-open impeller (7) are arranged is parallel, and the sleeve pump shaft (17) and the semi-open impeller (7) are arranged vertically.
5. The self-priming pump with convenient disassembly and assembly and high working efficiency according to claim 1, wherein the using method of the self-priming pump specifically comprises the following steps:
Step one: after the self-priming pump is started, the direct-connected motor (19) drives the semi-open impeller (7) to rotate through the sleeve-type pump shaft (17), air sucked into the pipeline from the inlet of the pump body is fully mixed with water and is discharged to the steam-water separation chamber, gas at the upper part of the steam-water separation chamber is discharged, liquid at the lower part is returned to the semi-open impeller (7) again to be mixed with the gas sucked into the pipeline, and thus the self-priming pump body (10) and the gas sucked into the cavity are completely discharged through continuous circulation;
Step two: the self-priming pump body (10) is provided with a waterproof hole plug (2) at the lower end of the steam-water separation chamber cavity, the waterproof hole plug is fixed by a hand-tightening nut (1), an impeller front cover lining plate (4) is arranged at the position of the self-priming pump body (10) close to the semi-open impeller (7), a gap between the self-priming pump body and the semi-open impeller front cover plate is adjusted through the impeller front cover lining plate (4), the gap is increased, and the lift of the self-priming pump is reduced;
step three: an outlet pipe thread (11) is adopted at the outlet of the self-priming pump body, the self-priming pump body is fixedly connected with a diversion type leading-out connecting pipe (12) through threads, a rubber pipe is connected through a plurality of tooth-shaped grooves 20 at the upper end of the diversion type leading-out connecting pipe (12), a steam exhaust hole is formed at the upper end of the diversion type leading-out connecting pipe (12) close to the steam-liquid separation chamber, a part of gas is discharged through the outlet pipe, and the rest of gas is discharged into the steam-liquid separation chamber on the other hand, so that quick self priming is realized;
Step four: one end disc of a pump cover (13) of the self-priming pump is connected with a motor connecting frame (18), the other end disc is connected with a self-priming pump body (10), and a mechanical seal (14) and a framework oil seal (16) are respectively installed through a mechanical seal cavity and a framework oil seal structure which are arranged in the pump cover (13) to form double-layer sealing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910607560.6A CN110242581B (en) | 2019-07-04 | 2019-07-04 | Self priming pump convenient to dismouting and work efficiency are high |
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| CN201910607560.6A CN110242581B (en) | 2019-07-04 | 2019-07-04 | Self priming pump convenient to dismouting and work efficiency are high |
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| CN110242581A CN110242581A (en) | 2019-09-17 |
| CN110242581B true CN110242581B (en) | 2024-08-02 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113266575B (en) * | 2021-05-24 | 2022-11-04 | 宜昌市西峡泵业有限公司 | Sewage pump |
| CN115822981B (en) * | 2022-12-23 | 2026-03-13 | 苏州工学院 | A self-priming pump device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1464027A (en) * | 1973-10-31 | 1977-02-09 | Gorman Rupp Co | Self-priming centrifugal pump |
| CN109578288A (en) * | 2019-01-02 | 2019-04-05 | 三联泵业股份有限公司 | A kind of gas-liquid mixed type self priming centrifugal pump |
| CN210317788U (en) * | 2019-07-04 | 2020-04-14 | 安徽莱恩电泵有限公司 | Self priming pump convenient to dismouting and work efficiency are high |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201228672Y (en) * | 2008-07-14 | 2009-04-29 | 芜湖长江泵业有限公司 | Single-stage marine self-sucking non-plugging dredge pump |
| CN102734177A (en) * | 2012-06-08 | 2012-10-17 | 李冬庆 | Direct-connection self-sucking pump |
| CN204716547U (en) * | 2015-06-12 | 2015-10-21 | 郭其新 | A kind of self-priming pump |
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2019
- 2019-07-04 CN CN201910607560.6A patent/CN110242581B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1464027A (en) * | 1973-10-31 | 1977-02-09 | Gorman Rupp Co | Self-priming centrifugal pump |
| CN109578288A (en) * | 2019-01-02 | 2019-04-05 | 三联泵业股份有限公司 | A kind of gas-liquid mixed type self priming centrifugal pump |
| CN210317788U (en) * | 2019-07-04 | 2020-04-14 | 安徽莱恩电泵有限公司 | Self priming pump convenient to dismouting and work efficiency are high |
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