CN111794950A - Diaphragm compressor cylinder seal structure - Google Patents
Diaphragm compressor cylinder seal structure Download PDFInfo
- Publication number
- CN111794950A CN111794950A CN202010641078.7A CN202010641078A CN111794950A CN 111794950 A CN111794950 A CN 111794950A CN 202010641078 A CN202010641078 A CN 202010641078A CN 111794950 A CN111794950 A CN 111794950A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- oil distribution
- distribution disc
- diaphragm compressor
- cylinder body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 29
- 230000001105 regulatory effect Effects 0.000 claims description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000741 silica gel Substances 0.000 claims description 2
- 229910002027 silica gel Inorganic materials 0.000 claims description 2
- 239000003921 oil Substances 0.000 abstract description 54
- 239000010720 hydraulic oil Substances 0.000 abstract description 6
- 208000013201 Stress fracture Diseases 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
Images
Classifications
-
- 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
- F04B45/0536—Pumps having fluid drive the actuating fluid being controlled by one or more valves
-
- 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
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/122—Cylinder block
-
- 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
- F04B39/14—Provisions for readily assembling or disassembling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/102—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/104—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compressor (AREA)
Abstract
The invention discloses a diaphragm compressor cylinder sealing structure which comprises an oil distribution disc and a cylinder body, wherein a groove is formed in one side, facing the oil distribution disc, of the cylinder body, part or all of the oil distribution disc is arranged in the groove in an embedded mode, and an O-shaped ring is arranged on a contact surface between the oil distribution disc and the cylinder body. According to the invention, the groove is formed in one side of the cylinder body facing the oil distribution disc, part or all of the oil distribution disc is arranged in the groove in an embedded mode, and the O-shaped ring is arranged on the contact surface between the oil distribution disc and the cylinder body, so that radial sealing between the oil distribution disc and the cylinder body can be realized, meanwhile, double sealing is realized through the O-shaped ring, and leakage of hydraulic oil from a sealing surface is prevented.
Description
Technical Field
The invention relates to the technical field of cylinder sealing, in particular to a diaphragm compressor cylinder sealing structure.
Background
The structure of a cylinder in the prior art is shown in fig. 1 and fig. 2, and mainly comprises a bolt 1, an air inlet valve component 2, an exhaust valve component 3, a cylinder cover 4, a diaphragm 9, an oil distribution disc 8, a cylinder body 7, a joint 5 and a pressure regulating valve 6, wherein the cylinder adopts a form of pretightening and sealing the bolt 1, the cylinder cover 4 and the oil distribution disc 8 fix the diaphragm 9 in the middle through the bolt 1 with high pretightening force, and a compressor divides the interior of the cylinder into an air cavity 11 and an oil cavity 10 through the partition of the diaphragm 9. When the compressor works, in order to ensure that compressed gas is completely exhausted through the exhaust valve component 3, the pressure in the oil cavity is higher than the pressure at the side of the air cavity, and the hydraulic oil pressure in the oil cavity is regulated through the pressure regulating valve 6.
In addition, the cylinder in the prior art has the following problems:
the pressure regulating valve 6 is connected to an oil distribution disc 8 through a joint 5, the extended joint 5 is long, vibration with a certain frequency is generated when the compressor works, and fatigue fracture is easily generated at the joint of the joint 5 and the pressure regulating valve 6 after long-time work. The pressure regulating valve 6 is connected to the oil distribution disc 8 through the joint 5, so that the whole part is more, the structure is complex, and the joint 5 is not easy to install. When the cylinder is horizontal structure, need fix the oil distribution disc 8, prevent to take place the incident because of oil distribution disc 8 emptys during the dismouting. The place where the compressor is placed is generally an outdoor greenhouse-free environment, most of the oil distribution disc 8 is made of common carbon steel, and the oil distribution disc is easily rusted when placed in the air for a short time and can be corroded for a long time. The liquid can be compressed when the pressure is high, and the more oil in the oil cavity, the higher the compressibility, the lower the volumetric efficiency of the compressor and the more oil.
Disclosure of Invention
Therefore, the invention provides a sealing structure of a diaphragm compressor cylinder, which aims to solve the problem that hydraulic oil is easy to leak from a sealing surface due to poor sealing effect between an oil distribution disc and a cylinder body of the cylinder in the prior art.
In order to achieve the above purpose, the invention provides the following technical scheme:
according to the invention, the diaphragm compressor cylinder sealing structure comprises an oil distribution disc and a cylinder body, wherein a groove is formed in one side, facing the oil distribution disc, of the cylinder body, part or all of the oil distribution disc is embedded in the groove, and an O-shaped ring is arranged on a contact surface between the oil distribution disc and the cylinder body.
Further, the diaphragm compressor cylinder sealing structure further comprises a pressure regulating valve, and the pressure regulating valve is directly connected with the oil distribution disc.
Furthermore, the O-shaped ring is made of rubber or silica gel.
Further, the bolt connects the cylinder head and the cylinder block in a height direction of the cylinder.
Further, the quantity of bolt is a plurality of, along the circumference marginal end of cylinder cap evenly sets up.
Further, the O-ring is located on a side of the oil distribution pan.
Further, the O-ring is positioned lower than the upper surface of the cylinder block.
Further, the cross section of the O-shaped ring is circular.
Further, the exhaust valve member is provided with an exhaust port located at a tip end of the exhaust valve member.
The invention has the following advantages:
according to the invention, the groove is formed in one side of the cylinder body facing the oil distribution disc, part or all of the oil distribution disc is arranged in the groove in an embedded mode, and the O-shaped ring is arranged on the contact surface between the oil distribution disc and the cylinder body, so that radial sealing between the oil distribution disc and the cylinder body can be realized, meanwhile, double sealing is realized through the O-shaped ring, and leakage of hydraulic oil from a sealing surface is prevented.
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 should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.
FIG. 1 is a schematic structural diagram of a cylinder sealing structure of a diaphragm compressor in the prior art;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is a schematic structural view of a diaphragm compressor cylinder seal structure according to an exemplary embodiment;
in the figure: 1-a bolt; 2-an inlet valve member; 3-an exhaust valve member; 31. an exhaust port; 4-cylinder cover; 5-a linker; 6-pressure regulating valve; 7-cylinder body; 8-oil distribution disc; 9-a membrane; 10-an oil chamber; 11-an air cavity; 12-O-ring.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. 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.
According to the embodiment of the invention, the cylinder sealing structure of the diaphragm compressor is provided, as shown in fig. 3, the cylinder sealing structure comprises an oil distribution disc 8 and a cylinder body 7, a groove is formed in one side, facing the oil distribution disc 8, of the cylinder body 7, part or all of the oil distribution disc 8 is embedded in the groove, and an O-shaped ring 12 is arranged on a contact surface between the oil distribution disc 8 and the cylinder body 7.
According to the invention, the groove is formed in one side of the cylinder body 7 facing the oil distribution disc 8, part or all of the oil distribution disc 8 is embedded in the groove, and the O-shaped ring 12 is arranged on the contact surface between the oil distribution disc 8 and the cylinder body 7, so that radial sealing between the oil distribution disc 8 and the cylinder body 7 can be realized, meanwhile, double sealing is realized through the O-shaped ring 12, the sealing reliability is ensured, and leakage of hydraulic oil from a sealing surface is prevented.
In some optional embodiments, the diaphragm compressor cylinder sealing structure further comprises a pressure regulating valve 6, the pressure regulating valve 6 is directly connected with the oil distribution disc 8, in the prior art, the pressure regulating valve 6 is connected to the oil distribution disc 8 through a joint 5, the whole parts are more, the structure is complex, the joint 5 is not easy to install, the lead-out part of the joint 5 is long, the compressor can vibrate at a certain frequency during operation, and fatigue fracture is easy to generate at the joint of the joint 5 and the pressure regulating valve 6 after long-time operation.
The invention adopts the form that the pressure regulating valve 6 is directly connected with the oil distribution disc 8, avoids the risk of fatigue fracture at the joint of the joint 5 and the pressure regulating valve 6 with the conventional structure, reduces the number of parts, simplifies the structure, is more convenient to install and operate, and improves the production efficiency.
In some alternative embodiments, the O-ring 12 is made of rubber or silicone, so as to seal between the oil distribution disc 8 and the cylinder body 7.
In some alternative embodiments, the bolt 1 connects the cylinder head 4 and the cylinder block 7 along the height direction of the cylinder. Because the oil distribution disc 8 is installed in an embedded mode, the length H1 of the bolt 1 is obviously reduced compared with the height H in the prior art, so that the length of the bolt 1 is reduced, the material of the bolt 1 is saved, and the cost of the compressor is reduced.
In some optional embodiments, the number of the bolts 1 is multiple, and the bolts 1 are uniformly arranged along the circumferential edge end of the cylinder head 4, so that the cylinder head 4 and the cylinder block 7 are connected through the bolts 1.
In some alternative embodiments, the O-ring 12 is located on the side surface of the oil distribution plate 8, the number of the O-ring 12 is one, the O-ring 12 is located below the upper surface of the cylinder body 7 so as to prevent the hydraulic oil from leaking out of the oil chamber 10, and the cross section of the O-ring 12 is circular, which is a common shape in the prior art, and the specification and the size thereof are not described in detail herein.
In some alternative embodiments, the exhaust valve component 3 is provided with an exhaust port 31, the exhaust port 31 is located at the top end of the exhaust valve component 3, and the exhaust of the whole compressor is realized through the exhaust port 31.
The diaphragm compressor cylinder sealing structure adopts double sealing, ensures the sealing reliability, is convenient to operate when the pressure regulating valve 6 is installed, has a simpler structure, reduces the volume of the oil cavity 10, can reduce the oil consumption, does not need to fix the oil distribution disc 8 again, and ensures that the oil distribution disc 8 is not easily corroded by air.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (9)
1. The diaphragm compressor cylinder sealing structure comprises an oil distribution disc and a cylinder body, and is characterized in that one side, facing the oil distribution disc, of the cylinder body is provided with a groove, part or all of the oil distribution disc is arranged in the groove in an embedded mode, and an O-shaped ring is arranged on a contact surface between the oil distribution disc and the cylinder body.
2. The diaphragm compressor cylinder seal arrangement of claim 1, further comprising a pressure regulating valve directly connected to said oil distribution pan.
3. The sealing structure of the cylinder of the diaphragm compressor as claimed in claim 1, wherein the O-ring is made of rubber or silica gel.
4. The diaphragm compressor cylinder sealing structure according to claim 1, wherein said bolt connects said cylinder head and said cylinder block in a height direction of the cylinder.
5. The diaphragm compressor cylinder seal structure of claim 4, wherein said bolts are plural in number and are uniformly arranged along a circumferential edge end of said cylinder head.
6. The diaphragm compressor cylinder seal arrangement of claim 1, wherein said O-ring is located on a side of said oil distribution pan.
7. The diaphragm compressor cylinder seal structure of claim 6, wherein said O-ring is positioned lower than an upper surface of said cylinder block.
8. The diaphragm compressor cylinder seal structure of claim 1, wherein said O-ring has a circular cross-section.
9. A diaphragm compressor cylinder seal arrangement according to claim 1, characterized in that said discharge valve member is provided with a discharge port, said discharge port being located at the top end of said discharge valve member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010641078.7A CN111794950A (en) | 2020-07-06 | 2020-07-06 | Diaphragm compressor cylinder seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010641078.7A CN111794950A (en) | 2020-07-06 | 2020-07-06 | Diaphragm compressor cylinder seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111794950A true CN111794950A (en) | 2020-10-20 |
Family
ID=72811252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010641078.7A Pending CN111794950A (en) | 2020-07-06 | 2020-07-06 | Diaphragm compressor cylinder seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111794950A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116201718A (en) * | 2023-04-10 | 2023-06-02 | 烟台东德氢能技术有限公司 | Upper and lower membrane head structure assembly of diaphragm compressor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030170126A1 (en) * | 2002-03-05 | 2003-09-11 | Horst Kleibrink | Method for optimizing the gas flow within a diaphragm compressor and compressor with optimized flow |
| DE10244369B3 (en) * | 2002-09-24 | 2004-04-15 | Andreas Hofer Hochdrucktechnik Gmbh | Hydrodynamic flow limiter for membrane head of membrane compressor has cone with bores to block oil flow from one direction and permit it from other direction, has no moving parts |
| CN2809265Y (en) * | 2005-07-14 | 2006-08-23 | 杭州大潮石化设备有限公司 | Superhigh pressure hydraulic diaphragm type metering pump with inside circulation pressure balance system |
| CN103277289A (en) * | 2013-05-10 | 2013-09-04 | 北京京城压缩机有限公司 | Diaphragm-type compressor integrated cylinder body part with single cylinder body and double cylinder covers |
| CN109356822A (en) * | 2018-09-11 | 2019-02-19 | 西安交通大学 | A kind of processing method of autoclave diaphragm compressor and its cylinder cap and cylinder cap |
| CN110454368A (en) * | 2019-08-13 | 2019-11-15 | 西安交通大学 | A kind of hydrogenation stations diaphragm type compressor oil distribution casing running of hydraulic power oil optimization structure |
-
2020
- 2020-07-06 CN CN202010641078.7A patent/CN111794950A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030170126A1 (en) * | 2002-03-05 | 2003-09-11 | Horst Kleibrink | Method for optimizing the gas flow within a diaphragm compressor and compressor with optimized flow |
| DE10244369B3 (en) * | 2002-09-24 | 2004-04-15 | Andreas Hofer Hochdrucktechnik Gmbh | Hydrodynamic flow limiter for membrane head of membrane compressor has cone with bores to block oil flow from one direction and permit it from other direction, has no moving parts |
| CN2809265Y (en) * | 2005-07-14 | 2006-08-23 | 杭州大潮石化设备有限公司 | Superhigh pressure hydraulic diaphragm type metering pump with inside circulation pressure balance system |
| CN103277289A (en) * | 2013-05-10 | 2013-09-04 | 北京京城压缩机有限公司 | Diaphragm-type compressor integrated cylinder body part with single cylinder body and double cylinder covers |
| CN109356822A (en) * | 2018-09-11 | 2019-02-19 | 西安交通大学 | A kind of processing method of autoclave diaphragm compressor and its cylinder cap and cylinder cap |
| CN110454368A (en) * | 2019-08-13 | 2019-11-15 | 西安交通大学 | A kind of hydrogenation stations diaphragm type compressor oil distribution casing running of hydraulic power oil optimization structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116201718A (en) * | 2023-04-10 | 2023-06-02 | 烟台东德氢能技术有限公司 | Upper and lower membrane head structure assembly of diaphragm compressor |
| CN116201718B (en) * | 2023-04-10 | 2024-04-23 | 烟台东德氢能技术有限公司 | Upper and lower membrane head structure assembly of diaphragm compressor |
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