CN215633679U

CN215633679U - Diaphragm compressor servo valve

Info

Publication number: CN215633679U
Application number: CN202122081634.2U
Authority: CN
Inventors: 黄津鹄; 陈如意; 阮鹏
Original assignee: Guangdong Foran Technology Co ltd; Guangdong Foran Tiangao Fluid Machinery Equipment Co ltd; Foshan Gas High Pressure Pipe Network Co ltd
Current assignee: Guangdong Foran Technology Co ltd; Guangdong Foran Tiangao Fluid Machinery Equipment Co ltd; Foshan Gas High Pressure Pipe Network Co ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-01-25
Anticipated expiration: 2031-08-31

Abstract

The utility model provides a diaphragm compressor slave valve which comprises an air pressure valve body, a hydraulic valve body and a clamp, wherein the air pressure valve body comprises a first transverse body and a first vertical body which are connected with each other, the hydraulic valve body comprises a second transverse body and a second vertical body which are connected with each other, the clamp is provided with a first through hole for the end heads of the first vertical body and the second vertical body to pass through, the clamp is matched and can be sleeved outside the air pressure valve body and the hydraulic valve body, the top of the clamp is provided with a plurality of first threaded holes, a jackscrew which can be abutted against the first transverse body is connected in each first threaded hole, and the first transverse body and the second transverse body are tightly connected to form a sealing cavity through the matching of a circumferential clamp and a longitudinal jackscrew. The original bolt fastening mode is replaced by the clamp and jackscrew fastening mode, and on the basis of ensuring pressure, dependence on thick bolts is reduced, so that labor is saved in assembly.

Description

Diaphragm compressor servo valve

Technical Field

The utility model relates to the technical field of compressors, in particular to a diaphragm compressor servo valve.

Background

The diaphragm compressor is a positive displacement compressor and has two main characteristics determined by the structural characteristics: the compression ratio is large, the sealing performance is good, and the life force of the diaphragm compressor is the same. The main working principle is as follows: the driving mechanism drives the piston or the plunger piston to reciprocate, the piston or the plunger piston pushes oil liquid (the oil liquid is not compressible) in the oil cylinder to drive the diaphragm to compress gas, the volume of the gas in the diaphragm cavity is changed, and the purpose of gas compression is realized under the matching of the suction valve and the exhaust valve. The membrane compressor servo valve is a key main part of the membrane compressor, and in common words: the diaphragm compressor has air pressure when oil pressure exists. There are generally two types of valves for controlling oil pressure: the pressure regulating valve controls oil pressure by utilizing spring force, and the oil pressure is fixed; the servo valve utilizes the area difference between the air pressure and the oil pressure to form the pressure difference between the air pressure and the oil pressure, the oil pressure is servo, the air pressure rises the oil pressure and falls the oil pressure, the pressure difference of the air side oil side diaphragm of the force cylinder diaphragm is greatly reduced, the diaphragm stress is reduced, and the service life of the diaphragm is effectively prolonged. Under normal operation, the diaphragm compressor has high working pressure, and in order to ensure the pressure, the prior art generally uses thicker bolts to fasten the periphery of the diaphragm compressor, so that the fastening and assembly are very difficult, and the diaphragm compressor is generally fastened by a labor-saving wrench with the ratio of 1:30, which is equivalent to fastening one bolt by dozens of people.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides a diaphragm compressor slave valve which comprises an air pressure valve body, a hydraulic valve body and a clamp, wherein the air pressure valve body comprises a first transverse body and a first vertical body which are connected with each other, the hydraulic valve body comprises a second transverse body and a second vertical body which are connected with each other, the clamp is provided with a first through hole for the end head of the first vertical body and the end head of the second vertical body to pass through, the clamp is matched and sleeved outside the air pressure valve body and the hydraulic valve body, the top of the clamp is provided with a plurality of first threaded holes, a jackscrew which can be abutted against the first transverse body is connected in the first threaded hole, and the first transverse body and the second transverse body are tightly connected to form a sealed cavity through the matching of the circumferential clamp and the longitudinal jackscrew.

Furthermore, the first transverse body and the first vertical body form an inverted T shape, and the second transverse body and the second vertical body form a T shape.

Further, the included angle between the first transverse body and the first vertical body is 90 degrees.

Furthermore, a gasket is sleeved on the first vertical body, and the lower end of the jackscrew can be abutted to the gasket.

Furthermore, a plurality of first screw holes are distributed on the top of the hoop in a circumferential array.

Furthermore, the hoop is formed by connecting and enclosing at least two hoop bodies.

Furthermore, a wedge angle is arranged on one hoop body, a second threaded hole is formed in the wedge angle, a third threaded hole matched with the second threaded hole is formed in the adjacent hoop body, and the two adjacent hoop bodies are connected through the matching of bolts, the second threaded hole and the third threaded hole.

Further, the second threaded hole and the third threaded hole are plural.

Furthermore, the plurality of second threaded holes and the third threaded holes are all distributed in a straight line along the length direction of the hoop body.

Further, the included angle between the second transverse body and the second vertical body is slightly larger than 90 degrees.

Compared with the prior art, the utility model has the advantages that: the pneumatic valve body of the follow-up valve is fixedly connected with the hydraulic valve body through the matching of the circumferential hoop and the longitudinal jackscrew. The clamp and jackscrew fastening mode replaces the original bolt fastening mode, and on the basis of ensuring the pressure, the dependence on thick bolts is reduced, so that the assembly is labor-saving, the volume of the servo valve is reduced, and the compactness of the structure is enhanced. Meanwhile, the hoop is matched with the air pressure valve body and the hydraulic valve body, the air pressure valve body and the hydraulic valve body are wrapped in the hoop, the air tightness is enhanced, and the servo valve is more suitable for high-pressure or ultrahigh-pressure diaphragm compressors.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic perspective view of the utility model;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is a schematic top view of the pneumatic and hydraulic valve bodies of the present invention with the pneumatic and hydraulic valve bodies removed.

Wherein: 1. a pneumatic valve body; 11. a first cross body; 12. a first upright body; 2. a hydraulic valve body; 21. a second transverse body; 22. a second upright body; 3. clamping a hoop; 31. a first through hole; 32. a first threaded hole; 33. a hoop body; 331. a wedge angle; 3311. a second threaded hole; 332. a third threaded hole; 34. a second through hole; 4. carrying out top thread; 5. a gasket; 6. sealing the cavity; 7. a membrane; 8. an air intake passage; 9. an oil outlet channel; 10. an oil inlet passage.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. This patent does not relate to the improvement to admission, oil feed and the device that produces oil etc. of servovalve, all adopts prior art, and the event is not repeated here.

As shown in fig. 1-3, a diaphragm compressor slave valve comprises an air pressure valve body 1, a hydraulic valve body 2 and a clamp 3, wherein the air pressure valve body 1 comprises a first transverse body 11 and a first vertical body 12 which are connected with each other and integrally formed, the hydraulic valve body 2 comprises a second transverse body 21 and a second vertical body 22 which are connected with each other and integrally formed, the first transverse body 11 and the first vertical body 12 form an inverted T shape, and the second transverse body 21 and the second vertical body 22 form a T shape. The inverted T-shaped and T-shaped designs not only can reduce the volume of the valve body, but also can enable the valve body to be better matched with the clamping hoop 3 so as to be more fully wrapped by the clamping hoop 3 to enhance the air tightness of the valve body. The first vertical body 12 is sleeved with a gasket 5, the lower end of the jackscrew 4 can be abutted to the gasket 5, and the gasket 5 can prevent the lower end of the jackscrew 4 from directly contacting with the first transverse body 11 to damage the first transverse body 11 and play a role in buffering the first transverse body 11. The included angle between the first transverse body 11 and the first vertical body 12 is 90 degrees. The right angle structure can make the gasket 5 and the first transverse body 11 be tightly attached. The included angle of the second transverse body 21 and the second vertical body 22 is slightly larger than 90 degrees, so that the hoop 3 and the hydraulic valve body 2 are in softer fit, the valve body can be conveniently and smoothly clamped into the hoop, and the assembly convenience is enhanced.

The hoop 3 is provided with a second through hole 34 and a first through hole 31 for the end heads of the first vertical body 12 and the second vertical body 22 to pass through, and the hoop 3 is matched with and can be sleeved outside the air pressure valve body 1 and the hydraulic valve body 2 and can wrap the air pressure valve body 1 and the hydraulic valve body 2. The top of clamp 3 is equipped with a plurality of first screw holes 32 that the circumference array distributes, connects the jackscrew 4 that can with first horizontal body 11 butt in first screw hole 32. The first threaded holes 32 distributed in the circumferential array are all provided with the jackscrews 4, so that the valve body can be stressed more uniformly through the jackscrews 4 in the circumferential array and can be fastened more fully in the longitudinal direction.

The hoop 3 is formed by connecting and enclosing at least two hoop bodies 33. A wedge angle 331 is arranged on one hoop body 33, a second threaded hole 3311 is arranged in the wedge angle 331, a third threaded hole 332 matched with the second threaded hole 3311 is arranged on the adjacent hoop body 33, and the adjacent two hoop bodies 33 are connected through the matching of bolts with the second threaded hole 3311 and the third threaded hole 332. The second threaded holes 3311 and the third threaded holes 332 are provided in plural, and the plural second threaded holes 3311 and the plural third threaded holes 332 are linearly distributed along the length direction of the yoke body 33, so that the connection strength of the yoke 3 is enhanced to meet the application scenario.

Make first horizontal body 11 and second horizontal body 21 fastening connection form sealed chamber 6 through the cooperation of circumference clamp 3 and vertical jackscrew 4, sealed chamber 6 is separated into two independent atmospheric pressure chambeies and hydraulic pressure chamber by diaphragm 7 that sets up wherein, and the inlet channel 8 with atmospheric pressure chamber intercommunication runs through to ventilate and presses valve body 1 and wear out from first erectting body 12, and the oil channel 9 that produces oil with hydraulic pressure chamber intercommunication link up hydraulic valve body 2 and wear out from second erectting body 22, and the oil feed passageway 10 with hydraulic pressure chamber intercommunication link up the lateral wall of hydraulic valve body 2 and communicate with second through-hole 34. The pneumatic valve body 1 and the hydraulic valve body 2 of the slave valve are tightly connected through the matching of the circumferential hoop 3 and the longitudinal jackscrew 4. The original bolt fastening mode is replaced by the fastening mode of the hoop 3 and the jackscrew 4, the dependence on thick bolts is reduced on the basis of ensuring the pressure, the assembly is labor-saving, and the volume of the spool valve is reduced. Meanwhile, the hoop 3 is matched with the air pressure valve body 1 and the hydraulic valve body 2, the air pressure valve body 1 and the hydraulic valve body 2 are wrapped in the hoop, the air tightness is enhanced, and the servo valve is more suitable for a high-pressure or ultrahigh-pressure diaphragm compressor.

The working mode of the utility model is described as follows:

when the pneumatic valve is required to be installed, the gasket 5 is sleeved on the first vertical body 12, then the pneumatic valve body 1 and the hydraulic valve body 2 are installed in one hoop body 33, then the other hoop body 33 is connected with the hoop body 33, then the hoop body 33 is fixed by bolts, and then the top thread 4 is inserted into the first threaded hole 32 to further fasten the hoop body 33.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a diaphragm compressor spool valve, includes atmospheric pressure valve body and hydraulic valve body, its characterized in that still includes the clamp, the atmospheric pressure valve body includes interconnect's first horizontal body and first perpendicular body, hydraulic valve body includes interconnect's second horizontal body and second perpendicular body, the clamp is equipped with the confession first perpendicular body with the first through-hole that the end of second perpendicular body passed, the clamp cooperation can be established the atmospheric pressure valve body with the hydrovalve is external, the top of clamp is equipped with a plurality of first screw holes first screw hole internal connection have can with the jackscrew of first horizontal body butt, through circumference the clamp with vertically the cooperation of jackscrew makes first horizontal body with the second horizontal body fastening connection forms sealed chamber.

2. The diaphragm compressor spool valve as set forth in claim 1, wherein said first cross body and said first vertical body form an inverted T shape, and wherein said second cross body and said second vertical body each form a T shape.

3. The spool valve of claim 1 wherein a washer is sleeved on the first riser and a lower end of the jackscrew abuts against the washer.

4. The diaphragm compressor spool valve as set forth in claim 3, wherein said first cross body and said first vertical body are angled at 90 °.

5. The diaphragm compressor spool valve as set forth in claim 1, wherein a plurality of said first threaded holes are distributed in a circumferential array at a top portion of said collar.

6. The diaphragm compressor spool valve of claim 1 wherein the clip is formed by at least two clip body connections.

7. The spool valve of claim 6, wherein a wedge angle is formed on one of the hoop bodies, a second threaded hole is formed in the wedge angle, a third threaded hole is formed in an adjacent hoop body to be matched with the second threaded hole, and the adjacent hoop bodies are connected by matching bolts with the second threaded hole and the third threaded hole.

8. The diaphragm compressor spool valve as set forth in claim 7, wherein there are a plurality of said second threaded holes and said third threaded holes.

9. The diaphragm compressor spool valve as set forth in claim 8, wherein a plurality of said second threaded holes and said third threaded holes are each linearly arranged along a length of said collar body.

10. The diaphragm compressor spool valve as claimed in claim 1, wherein the angle between the second cross body and the second vertical body is slightly greater than 90 °.