CN114215726A - Membrane head structure of diaphragm compressor - Google Patents
Membrane head structure of diaphragm compressor Download PDFInfo
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- CN114215726A CN114215726A CN202111632524.9A CN202111632524A CN114215726A CN 114215726 A CN114215726 A CN 114215726A CN 202111632524 A CN202111632524 A CN 202111632524A CN 114215726 A CN114215726 A CN 114215726A
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- diaphragm
- membrane head
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- 239000012528 membrane Substances 0.000 title claims description 143
- 239000003921 oil Substances 0.000 claims abstract description 128
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 50
- 238000000034 method Methods 0.000 abstract description 7
- 230000006835 compression Effects 0.000 abstract description 6
- 238000007906 compression Methods 0.000 abstract description 6
- 239000002904 solvent Substances 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 2
- 239000001257 hydrogen Substances 0.000 description 10
- 229910052739 hydrogen Inorganic materials 0.000 description 10
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 7
- 230000000994 depressogenic effect Effects 0.000 description 7
- 239000007789 gas Substances 0.000 description 4
- 150000002431 hydrogen Chemical class 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B45/00—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids
- F04B45/04—Pumps or pumping installations having flexible working members and specially adapted for elastic fluids having plate-like flexible members, e.g. diaphragms
- F04B45/053—Pumps having fluid drive
- F04B45/0533—Pumps having fluid drive the fluid being actuated directly by a piston
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention provides a diaphragm head structure of a diaphragm compressor, wherein a lower diaphragm head and an upper diaphragm head are oppositely assembled, the opposite surfaces of the lower diaphragm head and the upper diaphragm head respectively form a concave surface, a diaphragm is arranged between the opposite concave surfaces of the lower diaphragm head and the upper diaphragm head, the concave surface is a rotary cavity formed by a deflection curve, the rotary cavity limits the maximum deformation deflection of the reciprocating deformation of the diaphragm so as to realize the reciprocating deformation of the diaphragm under the pushing of hydraulic oil in an oil cavity, thereby realizing the processes of air suction, compression and exhaust, the cavity between the diaphragm and the concave surface of the lower diaphragm head is filled with the hydraulic oil, effectively reducing the solvent volume of the closed oil cavity at the oil piston side, and simultaneously reducing the solvent volume of the closed oil cavity at the oil piston side by different oil liquid conveying structures on the lower diaphragm head and improving the operation efficiency of the compressor.
Description
Technical Field
The invention relates to the technical field of compressors, in particular to a diaphragm head structure of a diaphragm compressor.
Background
With the rapid development of hydrogen fuel cell vehicles, the application requirement of hydrogen compressors as basic corollary equipment is more and more prominent. The diaphragm compressor can realize absolute oil-free hydrogen compression, is the most widely applied type of the hydrogen compressor at present, and directly determines the economical efficiency of operation of a hydrogen industrial chain and the service life of equipment due to the product quality and the reliability of the diaphragm compressor. The hydrogen has small molecular weight, is inflammable and explosive, and provides a new challenge for the reliability of the diaphragm compressor, and the high pressure, the low cost, the high efficiency and the high reliability are the requirements of the oil-free hydrogen compression field on the diaphragm compressor at present and are also the key technology of the research of the hydrogen diaphragm compressor at present.
The traditional structure of the existing hydrogen diaphragm compressor is still adopted, the structure of a diaphragm head is complex, the maintenance cost is high, the volume of a closed oil cavity at the oil piston side is large, and the compressibility of lubricating oil at high pressure seriously influences the operation efficiency of the compressor.
Disclosure of Invention
The invention provides a diaphragm compressor diaphragm head structure which is simple in structure, simultaneously cancels a gas distribution plate and a oil distribution plate, simultaneously effectively reduces the volume of a closed oil cavity and improves the operation efficiency of a compressor through a unique stopper rod design, aiming at the problems that the diaphragm head structure of a hydrogen diaphragm compressor in the prior art is complex, the maintenance cost is high, and the volume of the closed oil cavity at the oil piston side is very large, so that the compressibility of lubricating oil at high pressure seriously influences the operation efficiency of the compressor.
The invention is realized by the following technical scheme:
a diaphragm head structure of a diaphragm compressor comprises a lower diaphragm head, an upper diaphragm head and a diaphragm; the lower membrane head and the upper membrane head are oppositely assembled, wherein the opposite surfaces of the lower membrane head and the upper membrane head respectively form a concave surface, the membrane is arranged between the opposite concave surfaces of the lower membrane head and the upper membrane head, and a cavity between the membrane and the concave surface of the lower membrane head is filled with hydraulic oil; the cavity between the diaphragm and the concave surface of the upper diaphragm head is filled with gas;
an oil cylinder is arranged in the lower membrane head, a cavity of the oil cylinder is communicated to the concave surface of the lower membrane head, an oil piston is arranged in the oil cylinder, the oil piston reciprocates in the oil cylinder and pushes hydraulic oil in the oil cylinder, the hydraulic oil pushes the membrane to perform reciprocating deformation between the concave surfaces of the lower membrane head and the upper membrane head, and meanwhile the reciprocating deformation of the membrane pushes the air cavity in the upper membrane head to shrink and grow.
Preferably, a plurality of center holes are formed in the center of the concave surface of the lower membrane head, and hydraulic oil in the oil cylinder flows to the cavity between the membrane and the concave surface of the lower membrane head through the center holes.
Preferably, the edge of the lower membrane head close to the concave surface is provided with a plurality of oil ducts, the plurality of oil ducts are arranged along the circumferential direction of the lower membrane head and are radially arranged in the lower membrane head, and a plurality of circulation holes are arranged along the oil ducts and are used for enabling hydraulic oil in the side wall of the oil cylinder to flow to reach a cavity between the membrane and the concave surface of the lower membrane head.
Furthermore, a plug rod is inserted into the oil duct, the end of the plug rod is connected with the oil duct in a sealing mode through threads, and a gap is formed between the rod body of the plug rod and the oil duct.
Furthermore, the surface of the concave surface of the lower membrane head is provided with an annular semicircular groove which is communicated with the outermost circulation holes of the plurality of oil ducts.
Further, be equipped with the oil groove in the depressed face of lower membrane head, it is the ring groove to cross the oil groove, communicates a plurality of oil ducts in the depressed face of membrane head down for hydraulic oil passes through the cavity between the depressed face of oil groove diaphragm and lower membrane head again through the oil duct.
Preferably, a closed oil cavity A is formed between the end part of the oil piston in the oil cylinder and the cavity between the diaphragm in the lower diaphragm head, and the diaphragm is pushed to reciprocate in the closed oil cavity A by hydraulic oil.
Preferably, an air inlet pipe and an air outlet pipe are arranged in the upper membrane head, pipe bodies of the air inlet pipe and the air outlet pipe are communicated with the concave surface of the upper membrane head, and a cavity between the pipe bodies of the air inlet pipe and the air outlet pipe in the upper membrane head and the membrane forms a closed air cavity B; when the diaphragm is deformed in a reciprocating manner through hydraulic oil, the closed air cavity B in the upper diaphragm head is pushed to reduce and enlarge.
Furthermore, an air inlet valve is arranged in the air inlet pipe, an exhaust valve is arranged in the exhaust pipe, and the air inlet pipe and the exhaust pipe are fixed on the upper membrane head through bolts through a second pressing plate respectively.
Preferably, the oil cylinder is locked and fixed on the lower membrane head through the first pressure plate by a bolt.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention provides a diaphragm head structure of a diaphragm compressor, wherein a lower diaphragm head and an upper diaphragm head are oppositely assembled, the opposite surfaces of the lower diaphragm head and the upper diaphragm head respectively form a concave surface, a diaphragm is arranged between the opposite concave surfaces of the lower diaphragm head and the upper diaphragm head, the concave surface is a rotary cavity formed by a deflection curve, the rotary cavity limits the maximum deformation deflection of the reciprocating deformation of the diaphragm so as to realize the reciprocating deformation of the diaphragm under the pushing of hydraulic oil in an oil cavity, thereby realizing the processes of air suction, compression and exhaust, the cavity between the diaphragm and the concave surface of the lower diaphragm head is filled with the hydraulic oil, effectively reducing the solvent volume of the closed oil cavity at the oil piston side, and simultaneously reducing the solvent volume of the closed oil cavity at the oil piston side by different oil liquid conveying structures on the lower diaphragm head and improving the operation efficiency of the compressor.
Furthermore, a plurality of center holes are formed in the center of the concave surface of the lower membrane head, hydraulic oil in the oil cylinder flows to reach the cavity between the membrane and the concave surface of the lower membrane head through the center holes, the hydraulic oil is conveyed in a mode, the hydraulic oil can conveniently flow to reach the cavity between the membrane and the concave surface of the lower membrane head, and the operation efficiency of the compressor is improved.
Furthermore, the border department that the membrane head rest is close to the sunk surface down is equipped with a plurality of oil ducts, a plurality of oil ducts are along the circumferencial direction of membrane head down, and the radial setting in the membrane head down, be equipped with a plurality of circulation holes along the oil duct for reach the cavity between the sunk surface of membrane and lower membrane head with the hydraulic oil flow in the hydro-cylinder lateral wall, this mode is the second mode of hydraulic oil transmission, hydraulic oil also can reach the cavity between the sunk surface of membrane and lower membrane head through the flow hole through the oil duct, improve compressor operating efficiency.
Furthermore, a plug rod is inserted into the oil duct, the end of the plug rod is connected with the oil duct in a threaded manner and sealed, a gap is formed between the rod body of the plug rod and the oil duct, the rod body part of the plug rod only covers the circulation hole, so that hydraulic oil can flow into the circulation hole through the gap, the volume of a cavity between the diaphragm and the concave surface of the lower diaphragm head is effectively reduced by the plug rod, the volume change of the hydraulic oil when the hydraulic oil is pressed is reduced, and the working efficiency of the whole machine is improved.
Furthermore, the surface of the concave surface of the lower membrane head is provided with an annular semicircular groove which is communicated with the outermost circulation holes of the plurality of oil channels, so that the hydraulic oil is uniformly distributed on the surface of the concave cavity.
Further, be equipped with the oil groove in the depressed face of lower membrane head, cross the oil groove and be the ring groove, communicate a plurality of oil ducts in the depressed face of membrane head down for hydraulic oil passes through the oil duct and passes through the cavity between the depressed face of oil groove diaphragm and lower membrane head again, and this mode is the third kind mode for hydraulic oil transmission, and hydraulic oil also can pass through the oil groove and reach the cavity between the depressed face of diaphragm and lower membrane head in, improves compressor operating efficiency.
Furthermore, the diaphragm, the lower diaphragm head, the oil cylinder and the oil piston form a closed oil cavity A, and when the oil piston reciprocates, the diaphragm is pushed by hydraulic oil to deform in a reciprocating mode.
Furthermore, a closed air cavity B is formed among the diaphragm, the upper diaphragm head, the exhaust valve and the air inlet valve, when the oil piston reciprocates, hydraulic oil in the closed oil cavity A pushes the diaphragm to deform, and the deformation of the diaphragm pushes the closed air cavity B to shrink and enlarge, so that the operation efficiency of the compressor is improved.
Furthermore, an air inlet valve is arranged in the air inlet pipe, an exhaust valve is arranged in the exhaust pipe, the processes of air suction, compression and exhaust are realized by opening and closing the exhaust valve and the air inlet valve, the air inlet pipe and the exhaust pipe are fixed on the upper membrane head through a second pressing plate respectively, and the stability of the air inlet pipe and the exhaust pipe on the upper membrane head is improved.
Furthermore, the oil cylinder is fixed on the lower membrane head through the first pressing plate through a bolt lock, so that the stability of the oil cylinder on the lower membrane head is improved.
Drawings
FIG. 1 is a schematic sectional view of a diaphragm head structure of a diaphragm compressor according to the present invention;
FIG. 2 is a schematic structural view of a diaphragm head of the diaphragm compressor according to the present invention;
FIG. 3 is a schematic view of a hydraulic oil flow structure of a concave surface of a lower membrane head according to the present invention.
In the figure: 1-an oil piston; 2-a first platen; 3-oil cylinder; 4-membrane head setting; 5-a stopper rod; 6-a membrane; 7-coating a membrane head; 8-an exhaust valve; 9-an exhaust pipe; 10-a second platen; 11-an air inlet pipe; 12-an intake valve; 401-flow-through holes; 402-oil passing groove; 403-annular semicircular groove; 404-central hole; 405-oil gallery.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The invention is described in further detail below with reference to the accompanying drawings:
referring to fig. 1 and 2, in one embodiment of the present invention, a diaphragm head structure of a diaphragm compressor is provided, which has a simple structure, and simultaneously eliminates a gas distribution plate and an oil distribution plate, and simultaneously effectively reduces the volume of a closed oil cavity and improves the operation efficiency of the compressor through a unique stopper rod design.
Specifically, the diaphragm head structure of the diaphragm compressor comprises a lower diaphragm head 4, an upper diaphragm head 7 and a diaphragm 6; the lower membrane head 4 and the upper membrane head 7 are oppositely assembled, wherein the opposite surfaces of the lower membrane head 4 and the upper membrane head 7 respectively form a concave surface, the membrane 6 is arranged between the opposite concave surfaces of the lower membrane head 4 and the upper membrane head 7, and a cavity between the membrane 6 and the concave surface of the lower membrane head 4 is filled with hydraulic oil; a cavity between the diaphragm 6 and the concave surface of the upper diaphragm head 7 is filled with gas;
an oil cylinder 3 is arranged in the lower membrane head 4, a cavity of the oil cylinder 3 is communicated to a concave surface of the lower membrane head 4, an oil piston 1 is arranged in the oil cylinder 3, the oil piston 1 reciprocates in the oil cylinder 3 and pushes hydraulic oil in the oil cylinder 3, the hydraulic oil pushes the membrane 6 to perform reciprocating deformation between the concave surfaces of the lower membrane head 4 and the upper membrane head 7, and meanwhile the reciprocating deformation of the membrane 6 pushes the air cavity in the upper membrane head 7 to shrink and grow.
According to the invention, the oil piston 1 is driven by an external mechanism to reciprocate in the oil cylinder 3, so that the compression of hydraulic oil is realized.
Specifically, as shown in fig. 3, a plurality of central holes 404 are formed in the center of the recessed surface of the lower membrane head 4, and the hydraulic oil in the oil cylinder 3 flows through the plurality of central holes 404 to reach the cavity between the diaphragm 6 and the recessed surface of the lower membrane head 4.
Specifically, as shown in fig. 3, a plurality of oil passages 405 are disposed at the edge of the lower membrane head 4 close to the recessed surface, the plurality of oil passages 405 are disposed along the circumferential direction of the lower membrane head 4 and radially inside the lower membrane head 4, and a plurality of circulation holes 401 are disposed along the oil passages 405, and are used for allowing hydraulic oil in the side wall of the oil cylinder 3 to flow to reach the cavity between the diaphragm 6 and the recessed surface of the lower membrane head 4.
According to fig. 3, a plug rod 5 is inserted into the oil passage 405, the end of the plug rod 5 is sealed with the oil passage 405 through threaded connection, and a gap is formed between the rod body of the plug rod 5 and the oil passage 405.
According to fig. 3, the surface of the concave surface of the lower film head 4 is provided with an annular semicircular groove 403, and the annular semicircular groove 403 is communicated with the outermost circulation hole 401 of the plurality of oil passages 405.
According to fig. 3, an oil groove 402 is formed in the concave surface of the lower membrane head 4, the oil groove 402 is a circular groove, and a plurality of oil passages 405 are communicated with the concave surface of the lower membrane head 4 and used for allowing hydraulic oil to pass through the oil passages 405 and then pass through a cavity between the membrane 6 of the oil groove 402 and the concave surface of the lower membrane head 4.
Specifically, a cavity between the end part of the oil piston 1 in the oil cylinder 3 and the diaphragm 6 in the lower membrane head 4 forms a closed oil cavity a, and hydraulic oil pushes the diaphragm 6 to perform reciprocating deformation in the closed oil cavity a.
Specifically, an air inlet pipe 11 and an air outlet pipe 9 are arranged in the upper membrane head 7, pipe bodies of the air inlet pipe 11 and the air outlet pipe 9 are communicated with the concave surface of the upper membrane head 7, and a closed air cavity B is formed in a cavity between the air inlet pipe 11 and the air outlet pipe 9 in the upper membrane head 7 and the diaphragm 6; when the diaphragm 6 is deformed in a reciprocating manner by hydraulic oil, the closed air cavity B in the upper diaphragm head 7 is pushed to reduce and enlarge.
Wherein, be equipped with admission valve 12 in the intake pipe 11, be equipped with discharge valve 8 in the blast pipe 9, intake pipe 11 and blast pipe 9 are fixed on last membrane head 7 through second clamp plate 10 respectively.
Specifically, the oil cylinder 3 is locked and fixed on the lower membrane head 4 through the first pressure plate 2 by a bolt.
In the invention, the hydraulic oil can flow to the cavity between the diaphragm 6 and the concave surface of the lower diaphragm head 4 through the plurality of central holes 404 in a manner that the hydraulic oil flows to the cavity, or can flow to the oil passing groove 402 through the oil passage 405, or can flow to the plurality of circulation holes 401 through the oil passage 405.
The plug rod 5 is radially inserted into the oil channel 405 of the lower membrane head 4 along the circumferential direction, the end part of the plug rod 5 is provided with a sealing thread, a gap is formed between the cylindrical part of the plug rod and the oil channel 405, the circulation hole 401 is communicated with the oil channel 405, and the cylindrical part of the plug rod only covers the circulation hole 401, so that hydraulic oil can flow into the circulation hole 401 through the gap, the volume of the closed oil cavity A is effectively reduced by the plug rod 5, the volume change of the hydraulic oil when the hydraulic oil is pressed is reduced, and the working efficiency of the whole machine is improved
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.
Claims (10)
1. A diaphragm head structure of a diaphragm compressor is characterized by comprising a lower diaphragm head (4), an upper diaphragm head (7) and a diaphragm (6); the lower membrane head (4) and the upper membrane head (7) are oppositely assembled, wherein the opposite surfaces of the lower membrane head (4) and the upper membrane head (7) form concave surfaces respectively, the membrane (6) is arranged between the opposite concave surfaces of the lower membrane head (4) and the upper membrane head (7), and a cavity between the membrane (6) and the concave surfaces of the lower membrane head (4) is filled with hydraulic oil; a cavity between the diaphragm (6) and the concave surface of the upper diaphragm head (7) is filled with gas;
be equipped with hydro-cylinder (3) in lower membrane head (4), the cavity of hydro-cylinder (3) communicates to the sunken face of lower membrane head (4), be equipped with oil piston (1) in hydro-cylinder (3), oil piston (1) is reciprocating motion in hydro-cylinder (3) to promote the hydraulic oil in hydro-cylinder (3), hydraulic oil promotes diaphragm (6) and carries out reciprocating deformation between the sunken face of membrane head (4) and last membrane head (7) down, and the reciprocating deformation of diaphragm (6) promotes the shrink and the grow of air cavity in membrane head (7) simultaneously.
2. The membrane head structure of the membrane compressor as claimed in claim 1, wherein a plurality of central holes (404) are formed in the central position of the concave surface of the lower membrane head (4), and hydraulic oil in the oil cylinder (3) flows through the plurality of central holes (404) to reach a cavity between the membrane (6) and the concave surface of the lower membrane head (4).
3. The membrane head structure of the membrane compressor as claimed in claim 1, wherein the lower membrane head (4) is provided with a plurality of oil passages (405) at the edge near the concave surface, the plurality of oil passages (405) are arranged along the circumferential direction of the lower membrane head (4) and radially in the lower membrane head (4), and a plurality of flow holes (401) are arranged along the oil passages (405) for flowing the hydraulic oil in the side wall of the oil cylinder (3) to the cavity between the membrane (6) and the concave surface of the lower membrane head (4).
4. The membrane head structure of the membrane compressor according to claim 3, wherein a plug rod (5) is inserted into the oil passage (405), the end of the plug rod (5) is sealed with the oil passage (405) through a threaded connection, and a gap is formed between a rod body of the plug rod (5) and the oil passage (405).
5. The membrane head structure of the membrane compressor as claimed in claim 3, wherein the surface of the concave surface of the lower membrane head (4) is provided with an annular semicircular groove (403), and the annular semicircular groove (403) is communicated with the outermost circulation hole (401) of the plurality of oil passages (405).
6. The membrane head structure of the membrane compressor according to claim 3, wherein an oil passing groove (402) is formed in the concave surface of the lower membrane head (4), the oil passing groove (402) is a circular groove, and a plurality of oil passages (405) are communicated in the concave surface of the lower membrane head (4) and used for allowing hydraulic oil to pass through the oil passages (405) and then pass through a cavity between the membrane (6) of the oil groove (402) and the concave surface of the lower membrane head (4).
7. A diaphragm head structure of a diaphragm compressor according to claim 1, characterized in that in the lower diaphragm head (4), the cavity between the end of the oil piston (1) in the oil cylinder (3) and the diaphragm (6) forms a closed oil chamber a in which the hydraulic oil pushes the diaphragm (6) to perform reciprocating deformation.
8. The membrane head structure of the membrane compressor according to claim 1, wherein an air inlet pipe (11) and an air outlet pipe (9) are arranged in the upper membrane head (7), pipe bodies of the air inlet pipe (11) and the air outlet pipe (9) are communicated with the concave surface of the upper membrane head (7), and a closed air cavity B is formed in a cavity between the pipe bodies of the air inlet pipe (11) and the air outlet pipe (9) in the upper membrane head (7) and the membrane (6); when the diaphragm (6) is deformed in a reciprocating manner through hydraulic oil, the closed air cavity B in the upper diaphragm head (7) is pushed to reduce and enlarge.
9. The membrane head structure of the membrane compressor according to claim 8, wherein an air inlet valve (12) is arranged in the air inlet pipe (11), an air outlet valve (8) is arranged in the air outlet pipe (9), and the air inlet pipe (11) and the air outlet pipe (9) are respectively fixed on the upper membrane head (7) through bolts via a second pressing plate (10).
10. The membrane head structure of the membrane compressor according to claim 1, wherein the oil cylinder (3) is fixed on the lower membrane head (4) through the first pressing plate (2) by bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111632524.9A CN114215726B (en) | 2021-12-28 | 2021-12-28 | Diaphragm head structure of diaphragm compressor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111632524.9A CN114215726B (en) | 2021-12-28 | 2021-12-28 | Diaphragm head structure of diaphragm compressor |
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| CN114215726A true CN114215726A (en) | 2022-03-22 |
| CN114215726B CN114215726B (en) | 2024-08-20 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115750298A (en) * | 2022-11-08 | 2023-03-07 | 烟台东德氢能技术有限公司 | Gas distribution disc of high-pressure/ultrahigh-pressure diaphragm compressor |
| CN118049364A (en) * | 2024-04-11 | 2024-05-17 | 江苏恒久机械股份有限公司 | Membrane head assembly and diaphragm compressor with same |
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| DE4202490A1 (en) * | 1992-01-27 | 1993-07-29 | Siegfried Stargard | Adjustment bolt for membrane compressor - acts on valve to control pressure forces in membrane head cavity |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115750298A (en) * | 2022-11-08 | 2023-03-07 | 烟台东德氢能技术有限公司 | Gas distribution disc of high-pressure/ultrahigh-pressure diaphragm compressor |
| CN118049364A (en) * | 2024-04-11 | 2024-05-17 | 江苏恒久机械股份有限公司 | Membrane head assembly and diaphragm compressor with same |
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