EP1818547A2 - Dispositif d'entretien d'air comprimé - Google Patents

Dispositif d'entretien d'air comprimé Download PDF

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Publication number
EP1818547A2
EP1818547A2 EP07000219A EP07000219A EP1818547A2 EP 1818547 A2 EP1818547 A2 EP 1818547A2 EP 07000219 A EP07000219 A EP 07000219A EP 07000219 A EP07000219 A EP 07000219A EP 1818547 A2 EP1818547 A2 EP 1818547A2
Authority
EP
European Patent Office
Prior art keywords
compressed air
pressure
module
maintenance device
working
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.)
Granted
Application number
EP07000219A
Other languages
German (de)
English (en)
Other versions
EP1818547A3 (fr
EP1818547B1 (fr
Inventor
Frank Schnabel
Manfred Jainczyk
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Festo SE and Co KG
Original Assignee
Festo SE and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Festo SE and Co KG filed Critical Festo SE and Co KG
Publication of EP1818547A2 publication Critical patent/EP1818547A2/fr
Publication of EP1818547A3 publication Critical patent/EP1818547A3/fr
Application granted granted Critical
Publication of EP1818547B1 publication Critical patent/EP1818547B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/04—Special measures taken in connection with the properties of the fluid
    • F15B21/048—Arrangements for compressed air preparation, e.g. comprising air driers, air condensers, filters, lubricators or pressure regulators

Definitions

  • the invention relates to a compressed air maintenance device, comprising a module arrangement having a compressed air inlet and a compressed air outlet, which contains a plurality of maintenance modules connected to one another and connected by fastening means, in particular at least one filter module, oiler module and / or switch-on module.
  • Compressed air service equipment is generally used to treat or treat the compressed air used in pneumatic systems according to certain criteria. They may include various types of maintenance modules, often referred to as maintenance devices, such as filter modules, pressure control modules, oiler modules, power-on modules, bleed modules, etc.
  • maintenance modules often referred to as maintenance devices, such as filter modules, pressure control modules, oiler modules, power-on modules, bleed modules, etc.
  • the present invention has set itself the task to optimize the use of pressure amplifiers.
  • the module arrangement of the compressed air maintenance device includes a pressure booster device which is able to raise the pressure of the injected compressed air to a higher working pressure than the feed pressure.
  • a compressed air maintenance device with pressure booster device integrated in its module arrangement.
  • This pressure booster device can deliver a higher working pressure on the output side than it is provided at the compressed air inlet.
  • the compressed air service device is particularly suitable for applications in which consumers must be supplied with a pressure which is above the pressure normally provided by a compressed air source, for example a pressure accumulator fed by a compressor.
  • a compressed air maintenance device can optionally be connected to the pressure booster device equip and the pressure intensifier device can be used practically in conjunction with any other maintenance modules.
  • the compressed air maintenance device can have a maintenance module embodied as a pressure intensifier module, which can be combined as desired with other maintenance modules and which contains all or part of the pressure intensifier device.
  • a partial integration of the pressure booster device into a pressure booster module can also be advantageous if at least one component of the pressure booster device is to be placed separately or integrated into another maintenance module.
  • the basic structure of the pressure intensifier device corresponds to that from the EP 1 042 615 B1 known pressure booster.
  • a switching valve By a switching valve, a two-piston and a connecting rod connecting the working piston existing working unit is driven to an oscillating linear motion, wherein the two working piston alternately, with increased force, previously fed compressed air in the direction of the compressed air outlet displace, with the increased working pressure builds up.
  • a pertinent arrangement is recommended here, that the longitudinal axis and at the same time the direction of movement of the working unit are at right angles to the direction of stacking of the maintenance modules of the module arrangement is aligned.
  • the pressure booster module can be relatively easily incorporated into the standardized module grid.
  • the pressure booster device can also be constructed in multiple stages. It then expediently contains more than two each piston piston receiving a working piston, wherein the more than two working pistons are combined to form the working unit. In this way, designs can be realized that allow a high pressure gain despite slender dimensions.
  • the working movement of the working unit is controlled by a switching valve, which in turn is activated by means of control signals, which are expediently generated as a function of the position of the working unit.
  • control signals are pneumatic control signals generated by pneumatic control valves.
  • This may be, for example, mechanical contact valves, which are mechanically actuated by the working unit. It when the connecting rod connecting the two working piston itself forms the valve members of the pneumatic control valves, as exemplified in the EP 1 042 615 B1 is described.
  • the electronic control unit is expediently a component of the module arrangement, wherein it is used, for example, as a component of a Pressure booster module or a separate control module can be executed. In all cases, it may be coupled via an internal electrical bus of the module arrangement with further electrical and / or electronic components of the module arrangement.
  • a preferably present electrical interface may allow communication with an external electronic control device, wherein the interface may also be a wireless interface, for example a radio interface.
  • the compressed-air maintenance device contains a pressure-boosting device with a working unit drivable by an actuating fluid to produce an oscillating working movement
  • a preferably existing pressure-regulating unit is expediently designed so that the actuating pressure of an actuating fluid can be set with it, which is switched to the working unit alternately with opposite directions of action.
  • the pressure booster device is always active only until the desired working pressure is present on the outlet side, which may be lower than the maximum possible working pressure:
  • the pressure intensifier device constantly generates the maximum possible working pressure and it can, for setting a lower output pressure in this regard, be followed by a pressure control unit, in particular in the form of a stand-alone, designed as a pressure control module maintenance module.
  • the compressed air maintenance device also includes at least one by-pass channel, which bypasses the pressure booster device and which can be shut off when the pressure booster device is active. Once no increased pressure is needed and it is sufficient if at the compressed air outlet, an outlet pressure is present, the maximum corresponds to the inlet pressure, the by-pass channel can be opened to enable a direct fluid connection between the compressed air inlet and the compressed air outlet.
  • the compressed air service device designated in its entirety by reference numeral 1, includes a module assembly 2 comprising a plurality of maintenance modules 3 strung together in a line-up direction 4 indicated by a double-headed arrow.
  • the juxtaposed maintenance modules 3 are releasably clamped together in the alignment direction 4. Thereby they form an assembly.
  • the fastening means 5 are effective in the embodiment each directly between successive in the line-up direction 4 maintenance modules 3. With mutually facing joining surfaces 6, the maintenance modules 3 are juxtaposed, wherein the fastening means 5 in the region of Joining surfaces 6 are located.
  • the fastening means may be, for example, by a screw actuated clamping means.
  • the maintenance modules 3 are held together by tie rod-like fastening means 5.
  • the embodiment shown has the advantage that individual maintenance modules 3 can be released without losing the cohesion of the other maintenance modules 3.
  • the compressed air inlet 8 and the compressed air outlet 9 are each designed to be able to connect a compressed air line 12a, 12b, preferably detachably. These compressed air lines 12a, 12b are regularly part of a laid at the site of the compressed air maintenance device 1 piping system. During operation of the compressed air maintenance device 1, it is supplied via the compressed air line 12a untreated compressed air, which is discharged after passing through the module assembly 3 in the desired form prepared on the other compressed air line 12b to one or more connected consumers.
  • the compressed air inlet 8 and the compressed air outlet 9, for example, with threaded means and / or be equipped with connector devices for the connection of the compressed air lines 12a, 12b.
  • the fluid channel 7 is composed of a plurality of fluid channel sections extending in the individual maintenance modules 3, which are connected to one another with sealing during the assembly of the maintenance modules 3 and complement each other to form the fluid channel 7.
  • suitable sealing means are provided for this purpose, which surround the mutually aligned channel openings, such as sealing rings, which are not shown in the drawing, however.
  • the number, type and order of the combined in the module assembly 2 maintenance modules 3 is in principle arbitrary, and is based on the needs of the user.
  • the order refers to the direction indicated by arrows flow direction of the fluid channel 7 flowing through the compressed air to a power-on module 3a, a filter module 3b, a pressure booster module 3c and - optionally and therefore indicated only by dash-dotted lines - a pressure control module 3d.
  • FIG. 2 differs from that of FIG. 1 by an electronic control module 3e which is switched on between the filter module 3b and the pressure amplifier module 3c and can also be labeled as a controller module, and an accumulator module 3f which is attached at the end instead of the pressure control module 3d.
  • an electronic control module 3e which is switched on between the filter module 3b and the pressure amplifier module 3c and can also be labeled as a controller module, and an accumulator module 3f which is attached at the end instead of the pressure control module 3d.
  • the compressed air outlet 9 is located at the pressure booster module 3c, but optionally shifts to the optional pressure control module 3d or pressure storage module 3f.
  • the switch-on module 3a contains a schematically indicated, electrically or manually operable shut-off valve device 13, by means of which the flow through the fluid channel 7 can optionally be shut off or released.
  • the filter module 3b contains at least one filter device 14 through which compressed air flows, in which contaminants are filtered out of the compressed air.
  • the pressure booster module 3c contains in the embodiment of Figure 1, the entirety and in the embodiment of Figure 2 relevant components of a designated generally by reference numeral 17 pressure intensifier device, which can increase the pressure of the fed via the compressed air inlet 8 compressed air beyond the feed pressure, so that at the output 16 of the pressure intensifier device 15 can tap a higher working pressure compared to the feed pressure.
  • the pressure intensifier device 15 is equipped with a pressure control unit 17, which allows a variable and in particular continuously variable specification of the working pressure. As a result, a changing pressure requirement can be taken into account.
  • the pressure booster device 15 can also be designed so that it always delivers a constant working pressure, which is, however, higher by a certain factor than the feed pressure supplied via the compressed air inlet 8, said factor depending on the design of the pressure booster device 15.
  • the already mentioned pressure regulating module 3d can be connected to the pressure amplifier module 3c, by means of which the pressure at the compressed air outlet 9 tapped pressure can be regulated down to an outlet pressure when needed, which is less than the maximum pressure of the pressure booster 15 can be generated working pressure.
  • the compressed air maintenance device 1 is operated so that the volume flow taken off by the connected consumers is less than or equal to the same as the delivery rate of the pressure intensifier device 15. At least in cases where demand peaks exceeding the delivery rate can occur, it is recommended that the Pressure intensifier device 15 downstream of a pressure storage module 3f, which has a compressed air reservoir with a sufficiently large receiving volume. In this case, the pressure storage module 3f is fed by the pressure booster module 3c, and the compressed air outlet 9 is found on the pressure storage module 3f or on a further maintenance module arranged downstream of it.
  • the pressure booster module 3c includes a pressure booster unit 18 that performs the work required to increase the pressure. It is operated with a pneumatic actuation fluid, in particular compressed air, which is under a predetermined operating pressure.
  • Allen maintenance modules 3 is the presence of a preferred cubic body 22 in common, on which the joining surfaces 6 are located.
  • the base body 22 is at the same time a carrier of the filter device 14 projecting transversely to the line-up direction 4, generally downward.
  • the base 22 forms a partition wall 23 which divides two piston chambers 24, 25 from each other are jointly defined by the base body 22 and an attached thereto, one or more parts housing body 26, 27.
  • the two housing bodies 26, 27 are seated on mutually opposite sides of the partition wall 23 oriented at right angles to the line-up direction 4, so that the pressure intensifier module 2c has an overall elongated shape with a longitudinal axis 28 perpendicular to the line-up direction 4. If the compressed-air maintenance device 1 is installed in front of a support wall, it can be the pressure booster module 3c thus conveniently place with vertical longitudinal axis 28 space-saving.
  • the respectively associated piston chamber 24, 25 is divided into a penetrated by the connecting rod 32 inner working space 24a, 25a smaller cross-section and an axially opposite outer working space 24b, 25b larger cross-section under sealing.
  • the connecting rod 32 passes through the dividing wall 23 so that no fluid connection between the two inner working spaces 24a, 25a is possible through the dividing wall 23.
  • the fluid channel 7 is subdivided such that the connection between the compressed air inlet 8 and the compressed air outlet 9 is possible only via the two inner working spaces 24a, 25a.
  • the inlet-side channel section 7a of the fluid channel 7 connected to the compressed-air inlet 8 is in each case via an inflow-check valve 34 and the outlet-side channel section 7b of the fluid channel 7, each with a discharge check valve 35 with the two inner working chambers 24a, 25a in fluid communication.
  • the two check valves 34, 35 each have a spring-loaded valve member, wherein the inflow check valve 34 allows fluid flow into the connected inner working space 24a, 25a and prevents in the opposite direction. In the outflow check valves 35, the conditions are just the opposite, they allow a flow of fluid from the inner working spaces 24a, 25a toward the compressed air outlet 9 to.
  • the pressure booster unit 18 also includes a switching valve 36 arranged on or in the pressure booster module 3c.
  • the feed valve 37 is supplied with compressed air from the inlet-side channel section 7a via a feed channel 37, which acts as the actuating fluid explained above. From the switching valve 36 each leads an actuating channel 38, 39 to the two outer ßeren working spaces 24b, 25b.
  • the working unit 33 is caused to move linearly in one direction or the other.
  • a reciprocating pumping movement of the working unit 33 can be constructed in this way in the outlet-side channel section 7b, a working pressure which is higher than the feed pressure and its maximum height of the actuating pressure of the actuating fluid and the area ratio of the acted piston surfaces of the two working piston 24 ', 25th 'depends.
  • the embodiment of Figure 1 provides a non-electrical actuation by means of pneumatic control signals, which are switched to the switching valve 36 by means of two control channels 42. More specifically, the valve member of the change-over valve 36, which is not shown further, has opposing application surfaces which can be acted upon alternately by compressed air under control pressure via the control channels 42.
  • Each control channel 42 is connected to a dedicated pneumatic control valve 43 of the pressure intensifier device 15.
  • This control valve 43 is operated in response to the position of the working unit 33.
  • the partition wall 23 forms the housing of the two control valves 43 and the connecting rod 32 simultaneously represents two valve members, the in are able, depending on the position of the associated control channel 32 selectively connect to the adjacent inner working space 24a, 25a or separate from this.
  • the concrete embodiment may correspond to that as described in the EP 1 042 615 B1 is described.
  • separate pneumatic control valves 43 ' are provided, which are designed as Tastventile and are mechanically actuated by the working unit 33 when it runs on reaching an end position on a valve member of the control valve 43' associated actuating tappet ,
  • the purely pneumatically controlled pressure intensifier device 15 of the embodiment shown in Figure 1 is automatically activated and deactivated depending on the voltage applied to the switching valve 36 actuating pressure and in dependence on the fluid requirement at the compressed air outlet 9 and thus from the currently prevailing outlet pressure. If the working pressure which can be picked up at the outlet 16 is to be changed, this can be done by changing the setting of the pressure regulating unit 17. This is switched on in the course of the feed channel 37 and thus allows a variable specification of acting on the working pressure actuating pressure for the working unit 33.
  • the pressure control unit 17 may be formed here as a conventional pneumatic pressure control valve, wherein the pressure prevailing at the output of the feed channel 37 operates against the force of a spring, wherein a valve member of the pressure regulating valve opens or closes more or less according to the prevailing balance of power.
  • the pressure control unit 17 can be performed as part of the booster module 3c.
  • control signals for the switching valve 36 electrical control signals that are generated by an electronic control unit 44.
  • This electronic control unit may be a separate with respect to the module assembly 2, external components, as in Fig. 2 dash-dotted lines at 44 'is indicated. It may be, for example, an electronic control unit, which is also responsible for the control not shown in detail valves. In this case, it can be an immediate component of a valve battery containing several valves.
  • FIG. 2 shows an advantageous implementation form in which the electronic control unit 44 is located in a maintenance module 3 of the module arrangement 2 designed as an electronic control module 3e.
  • Another possibility indicated by dash-dotted lines in FIG. 2 at 44 '' provides for designing the electronic control unit as an immediate component of the pressure amplifier module 3c. As a result, it is possible to dispense with an additional, separate electronic control module 3e if required.
  • the switching valve 36 is an electrically actuated valve, in particular a pilot operated multiway valve.
  • the switching valve 36 solenoid valves or other electrically actuated valves in question.
  • the electronic control unit 44 generates the control signals for the switching valve 36 on the basis of position signals supplied thereto from a position detecting means 45. This is responsive to the switching positions of the working unit 33, in particular to predetermined piston positions of the working piston 24 ', 25'.
  • the position detection device 45 in the exemplary embodiment per working piston 24 ', 25' comprises a position sensor arranged on the housing body 26, 27, for example a reed switch, a Hall sensor or a magnetoresistive sensor.
  • the electrical connection of the position detection device 45 to the electronic control unit 44, 44 can take place, for example, via an internal electric bus 46 of the compressed air maintenance device 1, which is indicated schematically in FIG / or electronic components of the module assembly 2 are networked together.
  • the electronic control unit 44, 44 "arranged on or in the module arrangement 2 can be assigned an electrical interface 47, which enables a connection for signal transmission with an external electronic control device 48. In this case, a data exchange can be provided in both directions.
  • the pressure control unit 17 is formed as part of the electronic control unit 44. In this case, it is connected to an electrical pressure sensor 52, which detects the working pressure prevailing in the outlet-side channel section 7b.
  • the electronic control unit 44 can thus always cause an activation of the pressure booster unit 18 when the working pressure detected by the pressure sensor 52 has fallen below the predetermined desired value.
  • FIG. 1 also indicates that the module arrangement can have a by-pass channel 53 indicated by dot-dash lines, which in the released state establishes a direct connection between the inlet-side channel section 7a and the outlet-side channel section 7b, thereby bypassing the pressure amplification device 15.
  • It can be carried out purely manually operable or as an electrically operated valve device 54, the latter in particular in an embodiment comparable to that in Figure 2.
  • the valve device 54 via the electronic Control unit 44, 44 ', 44 "and / or the external electronic control device 48 are switched to the desired position as needed.
  • the valve device 54 may be embodied, for example, as a 3/2-way valve device which at the same time shuts off the compressed air supply to the pressure intensifier device 15 when the by-pass channel 53 is switched off in order to completely shut off the compressed air supply.

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  • Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
EP07000219A 2006-02-10 2007-01-08 Dispositif d'entretien d'air comprimé Not-in-force EP1818547B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202006002145U DE202006002145U1 (de) 2006-02-10 2006-02-10 Druckluft-Wartungsvorrichtung

Publications (3)

Publication Number Publication Date
EP1818547A2 true EP1818547A2 (fr) 2007-08-15
EP1818547A3 EP1818547A3 (fr) 2010-05-26
EP1818547B1 EP1818547B1 (fr) 2011-08-10

Family

ID=36372006

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07000219A Not-in-force EP1818547B1 (fr) 2006-02-10 2007-01-08 Dispositif d'entretien d'air comprimé

Country Status (3)

Country Link
EP (1) EP1818547B1 (fr)
CN (1) CN101016913B (fr)
DE (1) DE202006002145U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102541666A (zh) * 2010-12-31 2012-07-04 联想(北京)有限公司 一种电子设备和保护电子设备内部器件的方法

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4862789B2 (ja) * 2007-09-06 2012-01-25 パナソニック株式会社 テープフィーダ交換用台車
BR112014031692A2 (pt) * 2012-06-18 2017-10-31 Flowserve Man Co intensificador para um sistema de fornecimento de gás de uma vedação mecânica.
WO2017118525A1 (fr) * 2016-01-08 2017-07-13 Unilever Plc Dispositif et système permettant la distribution d'une confiserie glacée
JP2018084260A (ja) * 2016-11-22 2018-05-31 Smc株式会社 増圧装置
DE102018202416B4 (de) 2018-02-16 2024-12-19 Festo Se & Co. Kg Verbrauchersteuervorrichtung und Steuerungsverfahren

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10169567A (ja) 1996-12-12 1998-06-23 Seiritsu Kogyo Kk 変位制御型増圧ポンプの制御装置及び制御方法
EP1042615A1 (fr) 1998-10-21 2000-10-11 FESTO AG & Co Dispositif de travail actionne par un fluide
DE20210016U1 (de) 2002-06-28 2002-09-05 FESTO AG & Co., 73734 Esslingen Druckluft-Wartungsvorrichtung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10023297A1 (de) * 2000-05-14 2001-11-15 Weithofer Bernold Hydraulisch angetriebener Druckübersetzer mit Baukastensystem für Zusatzelemente
CN2725597Y (zh) * 2004-09-08 2005-09-14 西南石油学院 一种流体增压装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10169567A (ja) 1996-12-12 1998-06-23 Seiritsu Kogyo Kk 変位制御型増圧ポンプの制御装置及び制御方法
EP1042615A1 (fr) 1998-10-21 2000-10-11 FESTO AG & Co Dispositif de travail actionne par un fluide
DE20210016U1 (de) 2002-06-28 2002-09-05 FESTO AG & Co., 73734 Esslingen Druckluft-Wartungsvorrichtung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102541666A (zh) * 2010-12-31 2012-07-04 联想(北京)有限公司 一种电子设备和保护电子设备内部器件的方法

Also Published As

Publication number Publication date
EP1818547A3 (fr) 2010-05-26
DE202006002145U1 (de) 2006-04-27
CN101016913A (zh) 2007-08-15
EP1818547B1 (fr) 2011-08-10
CN101016913B (zh) 2012-05-09

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