CN211777940U

CN211777940U - Cylinder cover assembly and diaphragm compressor cylinder body part

Info

Publication number: CN211777940U
Application number: CN202020344076.7U
Authority: CN
Inventors: 林忠华; 任宝顺; 王世宇
Original assignee: Beijing Jingcheng Compressor Co ltd
Current assignee: Beijing Jingcheng Compressor Co ltd
Priority date: 2020-03-18
Filing date: 2020-03-18
Publication date: 2020-10-27
Anticipated expiration: 2030-03-18

Abstract

The utility model discloses a cylinder cap subassembly and diaphragm compressor cylinder block spare, wherein the cylinder cap subassembly includes main cylinder cap, vice cylinder cap, exhaust external member and the external member that admits air, and main cylinder cap and cylinder body can be dismantled fixedly, and vice cylinder cap presss from both sides and locates between main cylinder cap and the cylinder body, and the periphery of vice cylinder cap is sealed can the relieved formula offset with the periphery of cylinder body, and the center pin of main cylinder cap and vice cylinder cap all are provided with the first round hole and the second round hole that hold the exhaust external member and admit air the external member, admit air the external member with the exhaust external member respectively with the flow adjustable intercommunication of air intake system and exhaust system. The utility model discloses a cylinder cap subassembly simple structure, easily installation, reduction cost in business, improvement diaphragm compressor cylinder body part are standardized and satisfy the high corrosion resistance of high strength simultaneously.

Description

Cylinder cover assembly and diaphragm compressor cylinder body part

Technical Field

The utility model relates to a diaphragm compressor technical field especially relates to a cylinder cap subassembly.

The utility model discloses still relate to a take diaphragm compressor cylinder body part of above-mentioned cylinder cap subassembly.

Background

With the development of aerospace, nuclear power, petrochemical industry and gas industry at home and abroad, a large-displacement diaphragm compressor is urgently needed, so that large and ultra-large diaphragm compressors are more and more favored by users. Meanwhile, the service life requirements of users on parts in large diaphragm compressors are higher and higher, and especially the cylinder body and the cylinder cover with the highest cost in the cylinder body parts are particularly the cylinder cover, because the air valve, namely the heart of the diaphragm compressor, is to be installed on the part, the clearance volume of the diaphragm head of the diaphragm compressor, namely the percentage of the gas remained in the air cavity and the theoretical volume when the diaphragm is compressed to the upper dead point is calculated to the standard condition, the method plays a key role in efficient operation of the compressor, and how to control the clearance in a reasonable range needs the air valve and the installation size of the cylinder cover for installing the position of the air valve.

The cylinder head body 18 of the diaphragm compressor in the prior art is generally of an integrated structure as shown in fig. 1 and fig. 2, a vulnerable position of the cylinder head body 18 of the prior art is generally a position where the exhaust valve 7 and the intake valve 14 are respectively communicated with the air cavity, and is particularly easy to be damaged due to long-term maintenance of high pressure, blank problems or machining problems, but if the cylinder head body 18 is made of a material with higher strength due to strength problems, the material with high strength may not be corrosion-resistant, and the compressed medium needs a material with strong corrosion resistance, so that the cylinder head body 18 of the integrated structure may not be selected due to contradiction in material selection problems.

Disclosure of Invention

The utility model discloses a solve not enough among the prior art and accomplish. The utility model aims at providing a simple structure, easily installation, reduce cost in business, improve diaphragm compressor cylinder body part standardization and satisfy the cylinder cap subassembly of the high corrosion resistance of high strength simultaneously.

The utility model discloses a cylinder cover assembly, which comprises a main cylinder cover, an auxiliary cylinder cover, an exhaust sleeve member and an air inlet sleeve member, wherein the periphery of the main cylinder cover and the periphery of a cylinder body can be disassembled and fixed, the auxiliary cylinder cover is clamped between the main cylinder cover and the cylinder body, the top of the auxiliary cylinder cover and the lower part of the main cylinder cover are fixed in a sealing and detachable way, the bottom periphery of the auxiliary cylinder cover and the top periphery of the cylinder body are in sealing and releasable way, a diaphragm is clamped between the auxiliary cylinder cover and the cylinder body, the auxiliary cylinder cover and the diaphragm enclose to form an air cavity, the diaphragm and the cylinder body enclose to form an oil cavity, a first round hole for accommodating the exhaust sleeve member is arranged on the central shaft of the main cylinder cover and the central shaft of the auxiliary cylinder cover, the exhaust sleeve member is respectively fixed with the main cylinder cover and the auxiliary cylinder cover in a sealing and detachable way at the corresponding position of, the main cylinder cover and the auxiliary cylinder cover are respectively provided with second round holes for containing the air inlet suite at the same positions, the air inlet suite is respectively detachably fixed with the main cylinder cover and the auxiliary cylinder cover at the corresponding positions of the second round holes in a sealing mode, the upper portion of the air inlet suite is communicated with the air inlet system in an adjustable mode, the upper portion of the exhaust suite is communicated with the exhaust system in an adjustable mode, and the lower portion of the exhaust suite and the lower portion of the air inlet suite are respectively communicated with the air cavity.

The utility model discloses a cylinder cap subassembly can also be:

the exhaust sleeve comprises an exhaust valve arranged at the bottom for opening and closing, the upper part of the exhaust valve is communicated with the exhaust system, and the lower part of the exhaust valve is communicated with the air cavity.

The exhaust kit still including set up in the exhaust pressure pipe at discharge valve top, the periphery of exhaust pressure pipe with the inner periphery slidingtype of first round hole offsets, the lower part of exhaust pressure pipe inner periphery with discharge valve's periphery releasable formula joint, the exhaust pressure pipe with discharge valve intercommunication.

The exhaust kit still including setting up in the exhaust pressure board at top, the inner periphery of exhaust pressure board with the periphery slidable formula joint of exhaust pressure pipe, exhaust pressure board with the sealed dismantlement of main cylinder cap is fixed.

The exhaust pressure pipe is arranged above the corresponding position of the top of the main cylinder cover, and the exhaust pressure plate and the exhaust pressure pipe are in slidable clamping connection at the corresponding position of the first clamping groove.

The air inlet external member comprises an air inlet valve arranged at the bottom and used for opening and closing, the upper part of the air inlet valve is communicated with the air inlet system, and the lower part of the air inlet valve is communicated with the air cavity.

The air inlet external member is including setting up in the pressure pipe that admits air at admission valve top, the periphery of pressure pipe that admits air with the inner periphery slidable counterbalance of second round hole, the lower part inner periphery of pressure pipe that admits air with the periphery of admission valve can the formula of removing counterbalance, the pressure pipe that admits air with the admission valve intercommunication.

The air inlet external member further comprises an air inlet pressing plate arranged at the top, the inner periphery of the air inlet pressing plate and the air inlet pressing pipe are connected in a sliding mode in a clamping mode, and the air inlet pressing plate and the main cylinder cover are sealed, detachable and fixed.

The air inlet pressure pipe is arranged above the corresponding position of the top of the main cylinder cover, and the air inlet pressure plate and the air inlet pressure pipe are connected in a sliding mode at the corresponding position of the second clamping groove in a clamping mode.

The utility model discloses a cylinder cover assembly, which comprises a main cylinder cover, an auxiliary cylinder cover, an exhaust sleeve member and an air inlet sleeve member, wherein the periphery of the main cylinder cover and the periphery of a cylinder body can be disassembled and fixed, the auxiliary cylinder cover is clamped between the main cylinder cover and the cylinder body, the top of the auxiliary cylinder cover and the lower part of the main cylinder cover are fixed in a sealing and detachable way, the bottom periphery of the auxiliary cylinder cover and the top periphery of the cylinder body are in sealing and releasable way, a diaphragm is clamped between the auxiliary cylinder cover and the cylinder body, the auxiliary cylinder cover and the diaphragm enclose to form an air cavity, the diaphragm and the cylinder body enclose to form an oil cavity, a first round hole for accommodating the exhaust sleeve member is arranged on the central shaft of the main cylinder cover and the central shaft of the auxiliary cylinder cover, the exhaust sleeve member is respectively fixed with the main cylinder cover and the auxiliary cylinder cover in a sealing and detachable way at the corresponding position of, the main cylinder cover and the auxiliary cylinder cover are respectively provided with second round holes for containing the air inlet suite at the same positions, the air inlet suite is respectively detachably fixed with the main cylinder cover and the auxiliary cylinder cover at the corresponding positions of the second round holes in a sealing mode, the upper portion of the air inlet suite is communicated with the air inlet system in an adjustable mode, the upper portion of the exhaust suite is communicated with the exhaust system in an adjustable mode, and the lower portion of the exhaust suite and the lower portion of the air inlet suite are respectively communicated with the air cavity. Thus, the periphery of the main cylinder cover and the periphery of the cylinder body are detachably fixed, the auxiliary cylinder cover is clamped between the main cylinder cover and the cylinder body, the top of the auxiliary cylinder cover and the lower part of the main cylinder cover are detachably fixed in a sealing manner, the bottom periphery of the auxiliary cylinder cover and the top periphery of the cylinder body are in sealing and releasing type abutting, a diaphragm is clamped between the auxiliary cylinder cover and the cylinder body, the auxiliary cylinder cover and the diaphragm are enclosed to form an air cavity, the exhaust sleeve member is detachably fixed with the main cylinder cover and the auxiliary cylinder cover respectively at the position corresponding to the first round hole, the air inlet sleeve member is detachably fixed with the main cylinder cover and the auxiliary cylinder cover respectively at the position corresponding to the second round hole, thus, in the working process of conveying gas by the diaphragm compressor, the upper part of the exhaust sleeve member is communicated with the exhaust system in an adjustable manner, the upper part of the air inlet sleeve is communicated with the air inlet system in a flow-adjustable manner, the lower part of the exhaust sleeve and the lower part of the air inlet sleeve are respectively communicated with the air cavity, the exhaust sleeve and the air inlet sleeve are easily damaged due to huge gas pressure borne by the upper and lower communicated interfaces of the exhaust sleeve and the air inlet sleeve, so that the main cylinder cover can be made of a material with higher strength, and the auxiliary cylinder cover can be made of a material selected according to the requirement of conveyed compressed media, so that the main cylinder cover has higher strength and rigidity to bear high pressure caused by the compressed media, and the auxiliary cylinder cover has higher corrosion resistance. The utility model discloses a cylinder cap subassembly is, for prior art's advantage: simple structure, easy installation, reduction cost of enterprises, improvement of the standardization of cylinder parts of the diaphragm compressor and the requirement of high strength and high corrosion resistance.

Another object of the utility model is to provide a simple structure, easily installation, reduce cost in business, improve diaphragm compressor cylinder body part standardization and satisfy the diaphragm compressor cylinder body part of the high resistance to corrosion of high strength simultaneously.

The utility model discloses a diaphragm compressor cylinder body part, including cylinder body, cylinder liner and cylinder cap subassembly, the cylinder cap subassembly includes main cylinder cap, vice cylinder cap, exhaust external member and the external member that admits air, the periphery of main cylinder cap and the periphery of cylinder body can be dismantled fixedly, vice cylinder cap presss from both sides and locates main cylinder cap with between the cylinder body, the top of vice cylinder cap with the lower part of main cylinder cap is sealed detachable fixed, the bottom periphery of vice cylinder cap with the top periphery of cylinder body is sealed can the formula of relieving offsets, vice cylinder cap with it is equipped with the diaphragm to press from both sides between the cylinder body, vice cylinder cap with the diaphragm encloses and establishes the formation air cavity, the diaphragm with the cylinder body encloses and establishes the formation oil pocket, the center pin of main cylinder cap with all be provided with on the center pin of vice cylinder cap and hold the first round hole of exhaust external member, exhaust external member respectively with vice cylinder cap is in first round hole corresponds position department sealed can be The cylinder cover is detachably fixed, the main cylinder cover and the auxiliary cylinder cover are respectively provided with a second round hole for accommodating the air inlet suite at the same position, the air inlet suite is respectively detachably fixed with the main cylinder cover and the auxiliary cylinder cover in a sealing way at the position corresponding to the second round hole, the upper part of the air inlet suite is communicated with the air inlet system in a flow adjustable way, the upper part of the exhaust suite is communicated with the exhaust system in a flow adjustable way, the lower part of the exhaust suite and the lower part of the air inlet suite are respectively communicated with the air cavity, the lower part of a central shaft of the cylinder body and the cylinder sleeve are detachably fixed in a sealing way, a diaphragm is arranged between the cylinder body and the cylinder cover assembly, the diaphragm and the cylinder cover assembly are enclosed to form an air cavity, and the air cavity is respectively communicated with the air inlet system and the exhaust system in a flow adjustable way at, the diaphragm and the cylinder body are enclosed to form an oil cavity, the cylinder sleeve is in sealed sliding connection with a piston connected with a driving device, the oil cavity is communicated with the piston in an adjustable mode, and hydraulic oil is filled between the piston and the diaphragm.

The utility model discloses a diaphragm compressor cylinder body part, including cylinder body, cylinder liner and cylinder cap subassembly, the cylinder cap subassembly includes main cylinder cap, vice cylinder cap, exhaust external member and the external member that admits air, the periphery of main cylinder cap and the periphery of cylinder body can be dismantled fixedly, vice cylinder cap presss from both sides and locates main cylinder cap with between the cylinder body, the top of vice cylinder cap with the lower part of main cylinder cap is sealed detachable fixed, the bottom periphery of vice cylinder cap with the top periphery of cylinder body is sealed can the formula of relieving offsets, vice cylinder cap with it is equipped with the diaphragm to press from both sides between the cylinder body, vice cylinder cap with the diaphragm encloses and establishes the formation air cavity, the diaphragm with the cylinder body encloses and establishes the formation oil pocket, the center pin of main cylinder cap with all be provided with on the center pin of vice cylinder cap and hold the first round hole of exhaust external member, exhaust external member respectively with vice cylinder cap is in first round hole corresponds position department sealed can be The cylinder cover is detachably fixed, the main cylinder cover and the auxiliary cylinder cover are respectively provided with a second round hole for accommodating the air inlet suite at the same position, the air inlet suite is respectively detachably fixed with the main cylinder cover and the auxiliary cylinder cover in a sealing way at the position corresponding to the second round hole, the upper part of the air inlet suite is communicated with the air inlet system in a flow adjustable way, the upper part of the exhaust suite is communicated with the exhaust system in a flow adjustable way, the lower part of the exhaust suite and the lower part of the air inlet suite are respectively communicated with the air cavity, the lower part of a central shaft of the cylinder body and the cylinder sleeve are detachably fixed in a sealing way, a diaphragm is arranged between the cylinder body and the cylinder cover assembly, the diaphragm and the cylinder cover assembly are enclosed to form an air cavity, and the air cavity is respectively communicated with the air inlet system and the exhaust system in a flow adjustable way at, the diaphragm and the cylinder body are enclosed to form an oil cavity, the cylinder sleeve is in sealed sliding connection with a piston connected with a driving device, the oil cavity is communicated with the piston in an adjustable mode, and hydraulic oil is filled between the piston and the diaphragm. Thus, when the piston is positioned at the top dead center as a starting point, the diaphragm is at the upper limit position, when the driving device moves to drive the piston to slide downwards along the cylinder sleeve, the diaphragm restores to the balance position due to the action of hydraulic oil sinking, oil pressure reduction and self elasticity, the oil pressure in the oil cavity is reduced due to the increase of the volume of the hydraulic oil along with the continuous sliding of the piston, further, when the oil pressure in the oil cavity is smaller than the air pressure in the air cavity, the diaphragm can be gradually concave down in order to stabilize the air pressure of the air cavity and the oil pressure of the oil cavity, at the moment, the volume of the air cavity is gradually increased, the density of the gas remaining in the air cavity is reduced, the pressure is reduced, when the gas pressure of the air cavity is smaller than the gas pressure of the air inlet system, the air outlet sleeve closes the communication between the air cavity and the air outlet system, and the, and then the gas is communicated with the gas inlet system through the cylinder cover assembly to enter a gas cavity, when the driving device rotates to the lowest end, the piston moves to a bottom dead center, the diaphragm immediately reaches a lower limit position, and the gas inlet process of the gas cavity is finished. Then the driving device continues to rotate upwards to drive the piston to slide upwards along the cylinder sleeve, the hydraulic oil enters the oil cavity from the upper part of the piston more to increase the pressure of the hydraulic oil in the oil cavity due to the pushing of the piston, when the oil pressure in the oil cavity is greater than the air pressure in the air cavity, the hydraulic oil in the oil cavity uniformly acts on the diaphragm to push the diaphragm to deform upwards, the air inlet sleeve closes the communication between the air cavity and the air inlet system, the air exhaust sleeve keeps the communication between the air cavity and the air inlet system closed, the gas in the air cavity starts to be compressed, when the gas pressure in the air cavity is higher than the gas pressure in the air exhaust system, the air exhaust sleeve opens the communication between the air cavity and the air exhaust system, the gas is pressed into the air exhaust system, and when the diaphragm rises to the top dead center along with the piston, the gas in the gas chamber is substantially evacuated and the venting process is complete. The exhaust sleeve and the air inlet sleeve are detachably fixed with the main cylinder cover and the auxiliary cylinder cover at corresponding positions, so that in the working process of the diaphragm compressor, the air cavity is in flow adjustable communication with the exhaust system at the corresponding position of the exhaust sleeve, the air cavity is in flow adjustable communication with the air inlet system at the corresponding position of the air inlet sleeve, the air pressure borne by the two corresponding positions is large, and the air cavity and the air inlet system are easy to damage, so that the main cylinder cover can be made of a material with higher strength, the auxiliary cylinder cover can be made of a material with higher strength according to the requirement of a conveyed compressed medium, the main cylinder cover can bear the high pressure brought by the compressed medium with higher strength and rigidity, and the auxiliary cylinder cover has higher corrosion resistance. The utility model discloses a diaphragm compressor cylinder body part is, for prior art's advantage: simple structure, easy installation, reduction cost of enterprises, improvement of the standardization of cylinder parts of the diaphragm compressor and the requirement of high strength and high corrosion resistance.

Drawings

FIG. 1 is a top view of a prior art diaphragm compressor cylinder block component head body.

FIG. 2A prior art diaphragm compressor block component is shown in cross-section in FIGS. 1B-B.

Fig. 3 the utility model discloses a diaphragm compressor cylinder body part assembly section view.

Figure 4 the utility model discloses a diaphragm compressor cylinder body part cylinder cap subassembly top view.

Fig. 5 is a sectional view of a diaphragm compressor cylinder block component of the present invention, as shown in fig. 4A-a.

Description of the figures

1-main cylinder cover 2-cylinder body 3-first round hole

4-exhaust pressure pipe 5-exhaust pressure plate 6-first clamping groove

7-exhaust valve 8-first mounting hole 9-second clamping groove

10-second mounting hole 11-air inlet pressure plate 12-air inlet pressure pipe

13-second round hole 14-air inlet valve 15-diaphragm

16-cylinder liner 17-auxiliary cylinder cover 18-cylinder cover body

Detailed Description

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "vertical", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

A cylinder head assembly and diaphragm compressor cylinder block component of the present invention will be described in further detail with reference to the accompanying drawings, which are illustrated in fig. 3 to 5.

The utility model relates to a cylinder cover assembly, please refer to the relevant figures of fig. 3 to 5, which comprises a main cylinder cover 1, an auxiliary cylinder cover 17, an exhaust sleeve member and an air inlet sleeve member, wherein the periphery of the main cylinder cover 1 and the periphery of a cylinder body 2 are detachably fixed, the auxiliary cylinder cover 17 is clamped between the main cylinder cover 1 and the cylinder body 2, the top of the auxiliary cylinder cover 17 is detachably fixed with the lower part of the main cylinder cover 1 in a sealing way, the periphery of the bottom of the auxiliary cylinder cover 17 is in sealing and releasable way with the periphery of the top of the cylinder body 2, a diaphragm 15 is clamped between the auxiliary cylinder cover 17 and the cylinder body 2, the auxiliary cylinder cover 17 and the diaphragm 15 enclose to form an air cavity, the diaphragm 15 and the cylinder body 2 enclose to form an oil cavity, a first round hole 3 for accommodating the exhaust sleeve member is arranged on the central shaft of the main cylinder cover 1 and the central shaft of the auxiliary cylinder cover 17, the exhaust external member respectively with main cylinder cap 1 with vice cylinder cap 17 is in first round hole 3 corresponds position department sealed detachable fixed, main cylinder cap 1 with vice cylinder cap 17 is provided with respectively in the same position department and holds the second round hole 13 of the external member of admitting air, the external member of admitting air respectively with main cylinder cap 1 with vice cylinder cap 17 is in second round hole 13 corresponds position department sealed detachable fixed, the upper portion and the intercommunication with adjustable air intake system flow of the external member of admitting air, the upper portion and the intercommunication with adjustable exhaust system flow of the external member of exhausting, the lower part of the external member of exhausting with the lower part of the external member of admitting air respectively with the air cavity intercommunication. Thus, the periphery of the main cylinder cover 1 and the periphery of the cylinder body 2 can be detachably fixed, the auxiliary cylinder cover 17 is clamped between the main cylinder cover 1 and the cylinder body 2, the top of the auxiliary cylinder cover 17 and the lower part of the main cylinder cover 1 are detachably fixed in a sealing manner, the bottom periphery of the auxiliary cylinder cover 17 and the top periphery of the cylinder body 2 are in a sealing and releasable manner to abut against each other, a diaphragm 15 is clamped between the auxiliary cylinder cover 17 and the cylinder body 2, the auxiliary cylinder cover 17 and the diaphragm 15 enclose to form an air cavity, the exhaust sleeve member is detachably fixed with the main cylinder cover 1 and the auxiliary cylinder cover 17 at the position corresponding to the first round hole 3, the intake sleeve member is detachably fixed with the main cylinder cover 1 and the auxiliary cylinder cover 17 at the position corresponding to the second round hole 13, so that in the working process of conveying gas by the diaphragm compressor, the upper part of the exhaust sleeve is communicated with the exhaust system in a flow-adjustable manner, the upper part of the air inlet sleeve is communicated with the air cavity in a flow-adjustable manner, the lower part of the exhaust sleeve and the lower part of the air inlet sleeve are respectively communicated with the air cavity, the exhaust sleeve and the air inlet sleeve are easily damaged due to huge gas pressure at the upper and lower communicated interfaces of the exhaust sleeve and the air inlet sleeve, so that the main cylinder head 1 can be made of a material with higher strength, and the auxiliary cylinder head 17 can be made of a material selected according to the requirement of a conveyed compression medium, so that the main cylinder head 1 can have higher strength and rigidity to bear high pressure caused by the compression medium, and the auxiliary cylinder head 17 has higher corrosion resistance. The utility model discloses a cylinder cap subassembly and diaphragm compressor cylinder body part is, for prior art's advantage: simple structure, easy installation, reduction cost of enterprises, improvement of the standardization of cylinder parts of the diaphragm compressor and the requirement of high strength and high corrosion resistance.

The utility model discloses a cylinder cap subassembly please refer to relevant each picture of fig. 3 to 5, can also be on the basis of preceding technical scheme the exhaust external member is including setting up in the bottom exhaust valve 7 that is used for opening and close, exhaust valve 7's upper portion with exhaust system intercommunication, exhaust valve 7's lower part with the air cavity intercommunication. Thus, during exhaust, the exhaust valve 7 is opened to communicate the air cavity with the exhaust system and gas is output from the exhaust system, and during intake, the exhaust valve 7 is closed to communicate the air cavity with the exhaust system and gas is input from the intake system. The exhaust valve 7 is an important gate for gas output, so that the gas pressure to be borne by the exhaust valve 7 is also large, the exhaust valve 7 is easy to damage, and at the moment, the exhaust valve 7 only needs to be replaced independently. Further preferred scheme does the exhaust external member still including set up in exhaust pressure pipe 4 at discharge valve 7 top, the periphery of exhaust pressure pipe 4 with the inner peripheral slidingtype counterbalance of first round hole 3, the lower part inner periphery of exhaust pressure pipe 4 with discharge valve 7's periphery releasable formula joint, exhaust pressure pipe 4 with discharge valve 7 intercommunication. Therefore, the exhaust gas pressure pipe 4 stops the exhaust valve 7 and fills the gap between the main cylinder cover 1 and the exhaust valve 7, so that the exhaust valve 7 is always fixed at the position corresponding to the central shaft of the first round hole 3. A further preferred scheme is that the exhaust kit further comprises an exhaust pressure plate 5 arranged at the top, the inner periphery of the exhaust pressure plate 5 is connected with the outer periphery of the exhaust pressure pipe 4 in a sliding manner in a clamping manner, and the exhaust pressure plate 5 and the main cylinder cover 1 are sealed, detachable and fixed. Therefore, the exhaust pressure pipe 4 is fixed on the main cylinder cover 1 by the exhaust pressure plate 5, when the exhaust valve 7 or the exhaust pressure pipe 4 is damaged, the exhaust pressure plate 5 can be detached firstly, and then the exhaust pressure pipe 4 and the exhaust valve 7 are taken out to replace the damaged part. According to a further preferable technical scheme, a first clamping groove 6 is formed above the position, corresponding to the top of the main cylinder cover 1, of the exhaust pressure pipe 4, and the exhaust pressure plate 5 and the exhaust pressure pipe 4 are clamped at the position, corresponding to the first clamping groove 6, in a sliding mode. Therefore, the exhaust pressure plate 5 and the exhaust pressure pipe 4 are clamped at the first clamping groove 6, the height of the first clamping groove 6 is slightly higher than that of the main cylinder cover 1, the exhaust pressure plate 5 and the main cylinder cover 1 are close to each other as much as possible, the exhaust pressure plate 5 and the main cylinder cover 1 are detachably fixed, and the exhaust pressure plate 5 can tightly press the exhaust pressure pipe 4 on the main cylinder cover 1 at the first clamping groove 6. According to a further preferable technical scheme, at least three first mounting holes 8 are formed in the exhaust pressure plate 5 and the main cylinder cover 1 at the edge of the exhaust pressure plate 5 in an equidistant mode in a surrounding mode, and the exhaust pressure plate 5 is sealed and detachably fixed with the main cylinder cover 1 through the first mounting holes 8. Thus, because each part of the exhaust sleeve needs to bear enough gas pressure, at least three first mounting holes 8 can enable the fastening piece to be fixed on the main cylinder head 1 from the periphery of the exhaust gas pressure plate 5, and the stress applied to the joint of the two is uniformly distributed on the circumferential direction of the joint of the two.

The utility model discloses a cylinder cap subassembly please refer to relevant each picture of fig. 3 to 5, can also be on the basis of technical scheme in the front the air admission external member is including setting up in the bottom be used for the admission valve 14 of opening and close, the upper portion of admission valve 14 with the air intake system intercommunication, the lower part of admission valve 14 with the air cavity intercommunication. Thus, during intake, the intake valve 14 is open to communicate the air cavity with the intake system from which air enters, and during exhaust, the intake valve 14 is closed to communicate the air cavity with the intake system from which air exits. The inlet valve 14 is an important valve for gas output, so the pressure of the gas to which the inlet valve 14 is subjected is also large, which makes the exhaust valve 7 vulnerable, and at this time, the inlet valve 14 only needs to be replaced separately.

The utility model discloses a cylinder cap subassembly please refer to relevant each picture of fig. 3 to 5, can also be on the basis of technical scheme in the front the external member that admits air including set up in the pressure pipe 12 admits air at 14 tops of admission valve, the periphery of pressure pipe 12 admits air with the inner peripheral slidable formula of second round hole 13 offsets, the lower part of pressure pipe 12 interior week with the periphery releasable formula of admission valve 14 offsets, the pressure pipe 12 of admitting air with admission valve 14 intercommunication. In this way, the intake pressure pipe 12 stops the intake valve 14, fills the gap between the main cylinder head 1 and the intake valve 14, and ensures that the intake valve 14 is always fixed at the position corresponding to the central axis of the second round hole 13. The further preferred technical scheme is that the air inlet kit further comprises an air inlet pressure plate 11 arranged at the top, the inner periphery of the air inlet pressure plate 11 is in slidable clamping connection with the air inlet pressure pipe 12, and the air inlet pressure plate 11 and the main cylinder cover 1 are sealed, detachable and fixed. In this way, the intake pressure plate 11 fixes the intake pressure pipe 12 on the main cylinder head 1, and when the intake valve 14 or the intake pressure pipe 12 is damaged, the intake pressure plate 11 can be detached first, and then the intake pressure pipe 12 and the intake valve 14 can be taken out to replace the damaged part. According to a further preferable technical scheme, a second clamping groove 9 is formed above a position, corresponding to the top of the main cylinder cover 1, of the air inlet pressure pipe 12, and the air inlet pressure plate 11 and the air inlet pressure pipe 12 are clamped in a sliding mode at a position, corresponding to the second clamping groove 9. Therefore, the air inlet pressure plate 11 and the air inlet pressure pipe 12 are clamped at the second clamping groove 9, the height of the second clamping groove 9 is slightly higher than that of the main cylinder cover 1, the air inlet pressure plate 11 and the main cylinder cover 1 are close to each other as far as possible, the air inlet pressure plate 11 and the main cylinder cover 1 are detachably fixed, and the air inlet pressure plate 11 can tightly press the air inlet pressure pipe 12 on the main cylinder cover 1 at the second clamping groove 9. According to a further preferable technical scheme, a plurality of second mounting holes 10 are annularly formed in the periphery of the air inlet pressure plate 11 at equal intervals, and the exhaust pressure plate 5 is sealed, detachably and fixedly connected with the cylinder cover through the second mounting holes 10. Thus, because each part of the air intake assembly needs to bear enough air pressure, the second mounting holes 10 can allow fasteners to be fixed on the main cylinder head 1 from the periphery of the air intake pressure plate 11, and the stress applied to the joint of the two is uniformly distributed in the circumferential direction of the joint of the two.

The utility model discloses a diaphragm compressor cylinder body part please refer to each relevant picture of fig. 3 to 5, including cylinder body 2, cylinder liner 16 and cylinder cap subassembly, the cylinder cap subassembly includes main cylinder cap 1, vice cylinder cap 17, exhaust external member and the external member that admits air, the periphery of main cylinder cap 1 and the periphery of cylinder body 2 can be dismantled fixedly, vice cylinder cap 17 presss from both sides and locates main cylinder cap 1 with between the cylinder body 2, the top of vice cylinder cap 17 with the sealed detachable fixed of lower part of main cylinder cap 1, the bottom periphery of vice cylinder cap 17 with the sealed formula of can relieving of top periphery of cylinder body 2 offsets, vice cylinder cap 17 with press from both sides between the cylinder body 2 and be equipped with diaphragm 15, vice cylinder cap 17 with diaphragm 15 encloses and establishes the air cavity that forms, diaphragm 15 with cylinder body 2 encloses and establishes the formation, the center pin of main cylinder cap 1 with all be provided with on the center pin of vice cylinder cap 17 and hold the first round hole 3 of exhaust external member The exhaust sleeve is respectively fixed with the main cylinder cover 1 and the auxiliary cylinder cover 17 in a sealing and detachable manner at the position corresponding to the first round hole 3, the main cylinder cover 1 and the auxiliary cylinder cover 17 are respectively provided with a second round hole 13 for accommodating the air inlet sleeve at the same position, the air inlet sleeve is respectively fixed with the main cylinder cover 1 and the auxiliary cylinder cover 17 in a sealing and detachable manner at the position corresponding to the second round hole 13, the upper part of the air inlet sleeve is communicated with the flow of an air inlet system in an adjustable manner, the upper part of the exhaust sleeve is communicated with the flow of an exhaust system in an adjustable manner, the lower part of the exhaust sleeve and the lower part of the air inlet sleeve are respectively communicated with the air cavity, the lower part of a central shaft of the cylinder body 2 is fixed with the cylinder sleeve 16 in a sealing and detachable manner, a diaphragm 15 is arranged between the cylinder body 2 and the cylinder cover assembly, and the diaphragm, the air cavity is respectively communicated with an air inlet system and an exhaust system in flow adjustable mode at the corresponding positions of the air inlet external member and the exhaust external member, an oil cavity is formed by the membrane 15 and the cylinder body 2 in an enclosing mode, the cylinder sleeve 16 is connected with a piston connected with a driving device in a sliding mode in a sealing mode, the oil cavity is communicated with the piston in flow adjustable mode, and hydraulic oil is filled between the piston and the membrane 15. Thus, when the piston is at the top dead center as a starting point, the diaphragm 15 is at the upper limit position, when the driving device moves to drive the piston to slide downwards along the cylinder sleeve 16, the diaphragm 15 is restored to the balance position due to the action of hydraulic oil sinking, oil pressure reduction and self elasticity, the oil pressure in the oil chamber is reduced due to the increase of the volume of the hydraulic oil along with the continuous sliding of the piston, further, when the oil pressure in the oil chamber is smaller than the air pressure in the air chamber, the diaphragm 15 is gradually concave down to stabilize the air pressure of the air chamber and the oil pressure of the oil chamber, at this time, the volume of the air chamber is gradually increased, the gas density remained in the air chamber is firstly reduced, and the pressure is reduced, and when the gas pressure of the air chamber is smaller than the gas pressure of the air inlet system, the exhaust kit closes the communication between the air chamber and the, the air cavity is communicated with the air inlet system, then air enters the air cavity through the communication of the cylinder cover assembly and the air inlet system, when the driving device rotates to the lowest end, the piston moves to the bottom dead center, the diaphragm 15 immediately reaches the lower limit position, and at the moment, the air inlet process of the air cavity is completed. Then the driving device continues to rotate upwards to drive the piston to slide upwards along the cylinder sleeve 16, the hydraulic oil enters into the oil cavity from the upper part of the piston more due to the pushing of the piston, so that the pressure of the hydraulic oil in the oil cavity is increased, when the oil pressure in the oil cavity is greater than the air pressure in the air cavity, the hydraulic oil in the oil cavity uniformly acts on the diaphragm 15 to push the diaphragm 15 to deform upwards, at the moment, the air inlet sleeve closes the communication between the air cavity and the air inlet system, the air exhaust sleeve keeps the communication between the air cavity and the air inlet system closed, the gas in the air cavity starts to be compressed, when the gas pressure in the air cavity is higher than the gas pressure in the air exhaust system, the air exhaust sleeve opens the communication between the air cavity and the air exhaust system, the gas is pressed into the air exhaust system, and when the diaphragm 15 rises to the top dead center along with the piston, the gas in the gas chamber is substantially evacuated and the venting process is complete. The exhaust sleeve and the intake sleeve are detachably fixed with the main cylinder cover 1 and the auxiliary cylinder cover 17 at corresponding positions, so that in the working process of the diaphragm compressor, the air cavity is in flow adjustable communication with the exhaust system at the corresponding position of the exhaust sleeve, the air cavity is in flow adjustable communication with the intake system at the corresponding position of the intake sleeve, the two corresponding positions are easy to damage due to huge gas pressure, and therefore the material of the main cylinder cover 1 can be changed into a material with higher strength, the material of the auxiliary cylinder cover 17 can be selected according to the requirement of a conveyed compression medium, so that the main cylinder cover 1 has higher strength and rigidity to bear the high pressure brought by the compression medium, and the auxiliary cylinder cover 17 has higher corrosion resistance. The utility model discloses a diaphragm compressor cylinder body part is, for prior art's advantage: simple structure, easy installation, reduction cost of enterprises, improvement of the standardization of cylinder parts of the diaphragm compressor and the requirement of high strength and high corrosion resistance.

The above description is only for the purpose of illustrating the embodiments of the present invention, but should not be construed as the scope of the present invention, and all equivalent changes or modifications or scaling up or down according to the design spirit of the present invention should be considered as falling within the scope of the present invention.

Claims

1. A cylinder head assembly, characterized in that: including main cylinder cap, vice cylinder cap, exhaust external member and the external member that admits air, the periphery of main cylinder cap and the periphery of cylinder body can be dismantled fixedly, vice cylinder cap presss from both sides and locates main cylinder cap with between the cylinder body, the top of vice cylinder cap with the sealed detachable fixed of lower part of main cylinder cap, the bottom periphery of vice cylinder cap with the sealed formula of can removing of top periphery of cylinder body offsets, vice cylinder cap with press from both sides between the cylinder body and be equipped with the diaphragm, vice cylinder cap with the diaphragm encloses and establishes the formation air cavity, the diaphragm with the cylinder body encloses and establishes the formation oil pocket, the center pin of main cylinder cap with all be provided with on the center pin of vice cylinder cap and hold the first round hole of exhaust external member, the exhaust external member respectively with main cylinder cap with vice cylinder cap is in first round hole corresponds position department sealed detachable fixed, main cylinder cap with vice cylinder cap is provided with respectively in the same position department and holds the first round hole of The air inlet sleeve is respectively fixed with the main cylinder cover and the auxiliary cylinder cover in a sealing and detachable mode at the corresponding positions of the second round holes, the upper portion of the air inlet sleeve is communicated with the air inlet system in an adjustable mode, the upper portion of the exhaust sleeve is communicated with the exhaust system in an adjustable mode, and the lower portion of the exhaust sleeve and the lower portion of the air inlet sleeve are respectively communicated with the air cavity.

2. A cylinder head assembly according to claim 1, wherein: the exhaust sleeve comprises an exhaust valve arranged at the bottom for opening and closing, the upper part of the exhaust valve is communicated with the exhaust system, and the lower part of the exhaust valve is communicated with the air cavity.

3. A cylinder head assembly according to claim 2, wherein: the exhaust kit still including set up in the exhaust pressure pipe at discharge valve top, the periphery of exhaust pressure pipe with the inner periphery slidingtype of first round hole offsets, the lower part of exhaust pressure pipe inner periphery with discharge valve's periphery releasable formula joint, the exhaust pressure pipe with discharge valve intercommunication.

4. A cylinder head assembly according to claim 3, wherein: the exhaust kit still including setting up in the exhaust pressure board at top, the inner periphery of exhaust pressure board with the periphery slidable formula joint of exhaust pressure pipe, exhaust pressure board with the sealed dismantlement of main cylinder cap is fixed.

5. The cylinder head assembly of claim 4, wherein: the exhaust pressure pipe is arranged above the corresponding position of the top of the main cylinder cover, and the exhaust pressure plate and the exhaust pressure pipe are in slidable clamping connection at the corresponding position of the first clamping groove.

6. A cylinder head assembly according to claim 1, wherein: the air inlet external member comprises an air inlet valve arranged at the bottom and used for opening and closing, the upper part of the air inlet valve is communicated with the air inlet system, and the lower part of the air inlet valve is communicated with the air cavity.

7. The cylinder head assembly of claim 6, wherein: the air inlet external member is including setting up in the pressure pipe that admits air at admission valve top, the periphery of pressure pipe that admits air with the inner periphery slidable counterbalance of second round hole, the lower part inner periphery of pressure pipe that admits air with the periphery of admission valve can the formula of removing counterbalance, the pressure pipe that admits air with the admission valve intercommunication.

8. The cylinder head assembly of claim 7, wherein: the air inlet external member further comprises an air inlet pressing plate arranged at the top, the inner periphery of the air inlet pressing plate and the air inlet pressing pipe are connected in a sliding mode in a clamping mode, and the air inlet pressing plate and the main cylinder cover are sealed, detachable and fixed.

9. The cylinder head assembly of claim 8, wherein: the air inlet pressure pipe is arranged above the corresponding position of the top of the main cylinder cover, and the air inlet pressure plate and the air inlet pressure pipe are connected in a sliding mode at the corresponding position of the second clamping groove in a clamping mode.

10. A diaphragm compressor cylinder block component characterized by: the cylinder cover assembly comprises a cylinder body, a cylinder sleeve and a cylinder cover assembly, wherein the cylinder cover assembly is the cylinder cover assembly according to any one of claims 1 to 9, the lower portion of a central shaft of the cylinder body and the cylinder sleeve are sealed and detachably fixed, a diaphragm is arranged between the cylinder body and the cylinder cover assembly, the diaphragm and the cylinder cover assembly are enclosed to form an air cavity, the air cavity is communicated with an air inlet system and an exhaust system in an adjustable mode at the corresponding positions of the air inlet kit and the exhaust kit respectively, the diaphragm and the cylinder body are enclosed to form an oil cavity, the cylinder sleeve is connected with a piston of a driving device in a sealed sliding mode, the oil cavity is communicated with the piston in an adjustable mode, and hydraulic oil is filled between the piston and the diaphragm.