CN114278545A - Double-diaphragm-cavity cylinder body structure of diaphragm compressor - Google Patents
Double-diaphragm-cavity cylinder body structure of diaphragm compressor Download PDFInfo
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- CN114278545A CN114278545A CN202210110281.0A CN202210110281A CN114278545A CN 114278545 A CN114278545 A CN 114278545A CN 202210110281 A CN202210110281 A CN 202210110281A CN 114278545 A CN114278545 A CN 114278545A
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Abstract
The invention discloses a double-membrane-cavity cylinder body structure of a diaphragm compressor, which comprises a cylinder body, a left cylinder cover, a left oil distribution disc, a right cylinder cover and a right oil distribution disc, wherein the left oil distribution disc is arranged on the left cylinder cover; an oil cavity, an oil inlet hole and an oil discharge hole which are communicated with the oil cavity are arranged in the cylinder body, a left diaphragm is arranged between the left cylinder cover and the left oil distribution disc, a right diaphragm is arranged between the right cylinder cover and the right oil distribution disc, a left air cavity and a left oil cavity are formed between the left diaphragm and the left cylinder cover as well as between the left oil distribution disc and the right oil distribution disc, and a right air cavity and a right oil cavity are respectively formed between the right diaphragm and the right cylinder cover as well as between the right diaphragm and the right oil distribution disc; the left cylinder cover is respectively provided with a left air inlet and a left exhaust hole which are communicated with the left air cavity, and the right cylinder cover is respectively provided with a right air inlet and a right exhaust hole which are communicated with the right air cavity; the oil inlet is connected with a one-way valve, and the oil outlet is connected with a valve. The invention can realize the simultaneous work of the double-film cavities, and the displacement is doubled; the cylinder body component can realize heat dissipation by means of an oil way; a plurality of cylinder body parts can be connected in parallel, large displacement and small volume are realized, and meanwhile, the manufacturing cost and difficulty are lower.
Description
Technical Field
The invention relates to the technical field of diaphragm compressors, in particular to a double-diaphragm-cavity cylinder body structure of a diaphragm compressor.
Background
The diaphragm compressor is a displacement compressor with special structure, it uses diaphragm to separate the compressed medium from oil, and because of its special structure, the compressed medium does not contact with any lubricant, and the cylinder does not need lubrication, and its sealing property is good. It is suitable for compressing and conveying high-purity gas, rare gas, strong-corrosiveness gas and radioactive, toxic and explosive gas.
At present, a common diaphragm compressor is a double-piston double-cylinder structure, two pistons are driven by a crankshaft and two connecting rods, the two pistons respectively drive oil in a cylinder body part to compress gas, the cylinder body part mainly comprises a cylinder body, an oil distribution disc, a diaphragm and a cylinder cover, the diaphragm divides a curved surface cavity formed by sealing the oil distribution disc and the cylinder cover into an oil cavity and an air cavity, the end surface side of the cylinder cover is provided with an air inlet and an air outlet of the air cavity, and the cylinder body and the cylinder cover bear high pressure intensity, so that the compressor with large displacement is manufactured by increasing the diameters of the cylinder body, the oil distribution disc, the diaphragm and the cylinder cover generally, and the larger the diameter and the larger the thickness of a container bearing the same pressure intensity are, the heavier the whole compressor is, and the manufacturing cost and difficulty are also increased.
Disclosure of Invention
The present invention is directed to solve the above problems in the prior art, and provides a dual diaphragm cylinder structure of a diaphragm compressor.
In order to solve the technical problems, the technical scheme of the invention is as follows: a double-membrane-cavity cylinder body structure of a diaphragm compressor comprises a cylinder body, a left cylinder cover, a left oil distribution disc, a right cylinder cover and a right oil distribution disc, wherein the left oil distribution disc and the right oil distribution disc are arranged on two sides of the cylinder body, and the left cylinder cover and the right cylinder cover are fixed on two sides of the cylinder body; an oil cavity, an oil inlet hole and an oil discharge hole which are communicated with the oil cavity are arranged in the cylinder body, a left diaphragm is arranged between the left cylinder cover and the left oil distribution disc, a right diaphragm is arranged between the right cylinder cover and the right oil distribution disc, a left air cavity and a left oil cavity are formed between the left diaphragm and the left cylinder cover as well as between the left oil distribution disc and the right oil distribution disc, and a right air cavity and a right oil cavity are respectively formed between the right diaphragm and the right cylinder cover as well as between the right diaphragm and the right oil distribution disc; the left oil cavity and the right oil cavity are communicated with the oil cavity through a left oil distribution disc and a right oil distribution disc; the left cylinder cover is provided with a left air inlet and a left exhaust hole which are communicated with the left air cavity, and the right cylinder cover is provided with a right air inlet and a right exhaust hole which are communicated with the right air cavity; the oil inlet hole is connected with a one-way valve, and the oil outlet hole is connected with a valve.
In the above-mentioned double-diaphragm-cavity cylinder body structure of the diaphragm compressor, the right side surface of the left cylinder cover, the left side surface of the left oil distribution plate, the right side surface of the right oil distribution plate and the left side surface of the right cylinder cover are all concave curved surfaces.
In the above dual-diaphragm cylinder body structure of the diaphragm compressor, the left diaphragm and the two sides thereof form a left air cavity, and the left oil cavity is the same as the right diaphragm and the right air cavity and the right oil cavity formed on the two sides thereof.
In the above-mentioned double-diaphragm-cavity cylinder body structure of the diaphragm compressor, the concave curved surfaces arranged on the right side surface of the left cylinder cover and the left side surface of the left oil distribution plate, the concave curved surfaces arranged on the right side surface of the right oil distribution plate and the concave curved surfaces arranged on the left side surface of the right cylinder cover are respectively arranged symmetrically.
In the above-mentioned double-diaphragm-cavity cylinder body structure of the diaphragm compressor, the left oil distribution disc and the right oil distribution disc are respectively provided with a plurality of oil through holes, and the left oil cavity and the right oil cavity are communicated with the oil cavity through the oil through holes on the left oil distribution disc and the right oil distribution disc.
In the above double-diaphragm-cavity cylinder body structure of the diaphragm compressor, the cylinder body is annular, and the cylinder body is further provided with an oil supplementing hole and an overpressure protection overflow valve mounting hole which are communicated with the oil cavity.
In the above-mentioned double-diaphragm-cavity cylinder body structure of the diaphragm compressor, the cylinder body is provided with a plurality of connecting holes, and the left cylinder cover and the right cylinder cover are fixed on two sides of the cylinder body through the connecting holes by using the stud bolts and the nuts.
In the above dual-diaphragm-cavity cylinder body structure of the diaphragm compressor, fixing grooves are respectively formed in two sides of the cylinder body, and the left oil distribution disc and the right oil distribution disc are embedded in the fixing grooves in two sides of the cylinder body.
In the double-membrane-cavity cylinder body structure of the diaphragm compressor, the sealing rings are respectively arranged between the left cylinder cover and the left oil distribution disc, between the left oil distribution disc and the cylinder body, between the right oil distribution disc and the cylinder body, and between the right cylinder cover and the right oil distribution disc.
The invention has the following beneficial effects:
the invention is connected with a hydraulic power source through a cylinder body, when the hydraulic power source supplies oil to an oil cavity and a valve at an oil discharge hole is in a closed state, the oil in the oil cavity moves to a left oil cavity and a right oil cavity and simultaneously drives a left membrane and a right membrane to enable the membranes to generate elastic deformation, so that gas in the left air cavity and the right air cavity is compressed and discharged through an exhaust hole; the double-diaphragm-cavity simultaneous working is realized, the driving mode of the traditional diaphragm compressor is changed, a crank-connecting rod mechanism is changed into a hydraulic source for direct driving, and the displacement is doubled.
When the hydraulic power source is suspended in the using process and the valve is in an open state, the air inlet hole is filled with air, the left diaphragm and the right diaphragm deform inwards under the action of air pressure, and oil in the left oil cavity, the right oil cavity and the oil cavity is extruded and is discharged to the oil tank through the valve; because the hydraulic oil providing power is discharged into the oil tank only through once circulation of air exhaust and air intake in the oil cavity, and simultaneously, the generated heat is brought into the oil tank, and the hot oil is cooled in the oil tank, the oil which is supplied by the power source is always cooled, so that the hydraulic oil has good heat dissipation effect on the cylinder body part, and the cylinder body part does not need to be additionally cooled.
The double-film-cavity diaphragm compressor is directly driven by the hydraulic source, so that a plurality of cylinder parts of the double-film-cavity diaphragm compressor can be connected in parallel and can be driven by only one hydraulic power source, the large discharge capacity and the small volume are realized, and meanwhile, the manufacturing cost and the manufacturing difficulty are lower.
Drawings
FIG. 1 is a cross-sectional structural view of the present invention;
fig. 2 is a sectional view showing the cylinder block of the present invention.
Detailed Description
The invention is further elucidated with reference to the accompanying drawings.
Referring to fig. 1 and 2, the present invention provides a double-membrane-cavity cylinder body structure of a diaphragm compressor, including a cylinder body 17, a left cylinder cover 16, a left oil distribution disc 13, a right cylinder cover 18, and a right oil distribution disc 14, wherein fixing grooves 17-2 are respectively provided on both sides of the cylinder body 17, the left oil distribution disc 13 and the right oil distribution disc 14 are embedded in the fixing grooves 17-2 on both sides of the cylinder body 17, the cylinder body 17 is provided with a plurality of connecting holes 17-1, and the left cylinder cover 16 and the right cylinder cover 18 are fixed on both sides of the cylinder body 17 through the connecting holes 17-1 by using studs 20 and nuts 21.
An oil cavity 15, an oil inlet 5 and an oil outlet 6 which are communicated with the oil cavity 15 are arranged in the cylinder body 17, a left diaphragm 7 is arranged between the left cylinder cover 16 and the left oil distribution disc 13, a right diaphragm 8 is arranged between the right cylinder cover 18 and the right oil distribution disc 14, a left air cavity 9 and a left oil cavity 11 are formed between the left diaphragm 7 and the left cylinder cover 16 as well as between the left oil distribution disc 13, and a right air cavity 10 and a right oil cavity 12 are respectively formed between the right diaphragm 8 and the right cylinder cover 18 as well as between the right oil distribution disc 14; the left oil chamber 11 and the right oil chamber 12 are communicated with an oil chamber 15 through a left oil distribution disc 13 and a right oil distribution disc 14, a left air inlet 3 and a left exhaust hole 1 which are communicated with the left air cavity 9 are respectively arranged on the left cylinder cover 16, and a right air inlet 4 and a right exhaust hole 2 which are communicated with the right air cavity 10 are respectively arranged on the right cylinder cover 18.
The left air inlet 3, the left exhaust hole 1, the right air inlet 4 and the right exhaust hole 2 are connected with external air source equipment through air pipes; the oil inlet hole 5 is connected with a one-way valve 19, the oil outlet hole 6 is connected with a valve 22, and an oil cavity 15 arranged in the cylinder body 17 is connected with an external hydraulic power source through the one-way valve 19 and is connected with an external oil tank through the valve 22 by a pipeline.
When the hydraulic power source supplies oil to the oil cavity 15 of the cylinder body 17 and the valve 22 is in a closed state, the oil in the oil cavity 15 of the cylinder body 17 moves to the left oil cavity 11 and the right oil cavity 112, and simultaneously drives the left diaphragm 7 and the right diaphragm 8, so that the left diaphragm 7 and the right diaphragm 8 generate elastic deformation, and therefore, the gas in the left air cavity 9 and the right air cavity 10 is compressed and discharged through the left exhaust hole 1 and the right exhaust hole 2, the simultaneous work of the two diaphragm cavities is realized, and the exhaust amount is doubled; when the hydraulic power source is stopped and the valve 22 is in an open state, the left air inlet 3 and the right air inlet 4 are filled with air, so that the left diaphragm 7 and the right diaphragm 8 are deformed inwards under the action of the air pressure in the left air cavity 9 and the right air cavity 10, and the oil in the left oil cavity 11, the right oil cavity 112 and the oil cavity 15 of the cylinder body 17 is extruded and discharged to the oil tank through the valve.
Furthermore, the right side surface of the left cylinder cover 16, the left side surface of the left oil distribution disc 13, the right side surface of the right oil distribution disc 14 and the left side surface of the right cylinder cover 18 are all concave curved surfaces; the working volume of air intake, air exhaust, oil intake and oil exhaust in the working process can be increased, and therefore the air displacement is increased.
Further, in order to ensure the balance of the structure work, the left membrane 7 and the two sides thereof form a left air cavity 9, a left oil cavity 11, the right membrane 8 and the two sides thereof form a right air cavity 10 and a right oil cavity 12 which have the same shape and size; the right side of the left cylinder cover 16 and the left side of the left oil distribution disc 13 are symmetrically arranged, and the right side of the right oil distribution disc 14 and the left side of the right cylinder cover 18 are symmetrically arranged.
Specifically, a plurality of oil through holes 13-14 are respectively arranged on the left oil distribution disc 13 and the right oil distribution disc 14, and the left oil chamber 11 and the right oil chamber 12 are communicated with the oil chamber 15 through the oil through holes 13-14 on the left oil distribution disc 13 and the right oil distribution disc 14; the oil through holes 13-14 on the left oil distribution disc 13 and the right oil distribution disc 14 are uniformly distributed, so that the left diaphragm and the right diaphragm are uniformly stressed.
Further, as shown in fig. 2, the cylinder body 17 is annular, and the cylinder body 17 is further provided with an oil supplementing hole 23 and an overpressure protection relief valve mounting hole 24 which are communicated with the oil chamber 15; the oil supplementing hole 23 and the overpressure protection overflow valve mounting hole 24 can be mounted and connected with other safety devices, so that the safety in the use process is guaranteed.
Further, in order to ensure the sealing performance of the connection between the components, sealing rings 25 are respectively arranged between the left cylinder cover 16 and the left oil distribution disc 13, between the left oil distribution disc 13 and the cylinder body 17, between the right oil distribution disc 14 and the cylinder body 17, and between the right cylinder cover 18 and the right oil distribution disc 14.
The above detailed description is provided for the structure of the dual-diaphragm cylinder of the diaphragm compressor according to the embodiment of the present invention, and the specific examples are applied herein to explain the principle and the implementation manner of the present invention, and the above description of the embodiments is only used to help understanding the technical solution disclosed by the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (9)
1. The utility model provides a diaphragm compressor's two membrane chamber cylinder body structures which characterized in that: the oil distribution device comprises a cylinder body (17), a left cylinder cover (16), a left oil distribution disc (13), a right cylinder cover (18) and a right oil distribution disc (14), wherein the left oil distribution disc (13) and the right oil distribution disc (14) are arranged on two sides of the cylinder body (17), and the left cylinder cover (16) and the right cylinder cover (18) are fixed on two sides of the cylinder body (17); an oil cavity (15), an oil inlet hole (5) and an oil discharge hole (6) which are communicated with the oil cavity (15) are arranged in the cylinder body (17), a left diaphragm (7) is arranged between the left cylinder cover (16) and the left oil distribution disc (13), a right diaphragm (8) is arranged between the right cylinder cover (18) and the right oil distribution disc (14), a left air cavity (9) and a left oil cavity (11) are formed between the left diaphragm (7) and the left cylinder cover (16) as well as between the left oil distribution disc (13), and a right air cavity (10) and a right oil cavity (12) are respectively formed between the right diaphragm (8) and the right cylinder cover (18) as well as between the right oil distribution disc (14); the left oil chamber (11) and the right oil chamber (12) are communicated with the oil chamber (15) through a left oil distribution disc (13) and a right oil distribution disc (14); the left cylinder cover (16) is respectively provided with a left air inlet hole (3) and a left exhaust hole (1) which are communicated with the left air cavity (9), and the right cylinder cover (18) is respectively provided with a right air inlet hole (4) and a right exhaust hole (2) which are communicated with the right air cavity (10); the oil inlet hole (5) is connected with a one-way valve (19), and the oil discharge hole (6) is connected with a valve (22).
2. The double-diaphragm-chamber cylinder structure of the diaphragm compressor according to claim 1, wherein: the right side surface of the left cylinder cover (16), the left side surface of the left oil distribution disc (13), the right side surface of the right oil distribution disc (14) and the left side surface of the right cylinder cover (18) are all concave curved surfaces.
3. The double-diaphragm-chamber cylinder structure of the diaphragm compressor according to claim 2, wherein: the left diaphragm (7) and the two sides thereof form a left air cavity (9), a left oil cavity (11) is the same as the right diaphragm (8) and the two sides thereof form a right air cavity (10) and a right oil cavity (12) in shape and size.
4. The double-diaphragm-chamber cylinder structure of the diaphragm compressor according to claim 2, wherein: the right side surface of the left cylinder cover (16) and the left side surface of the left oil distribution disc (13) are symmetrically arranged, and the right side surface of the right oil distribution disc (14) and the left side surface of the right cylinder cover (18) are symmetrically arranged.
5. The double-diaphragm-chamber cylinder structure of the diaphragm compressor according to claim 1, wherein: the left oil distribution disc (13) and the right oil distribution disc (14) are respectively provided with a plurality of oil through holes (13-14), and the left oil cavity (11) and the right oil cavity (12) are communicated with the oil cavity (15) through the oil through holes (13-14) on the left oil distribution disc (13) and the right oil distribution disc (14).
6. The double-diaphragm-chamber cylinder structure of the diaphragm compressor according to claim 1, wherein: the cylinder body (17) is annular, and an oil supplementing hole (23) and an overpressure protection overflow valve mounting hole (24) which are communicated with the oil cavity (15) are further formed in the cylinder body (17).
7. The double-diaphragm-chamber cylinder structure of the diaphragm compressor according to claim 6, wherein: the cylinder body (17) is provided with a plurality of connecting holes (17-1), and the left cylinder cover (16) and the right cylinder cover (18) are fixed on two sides of the cylinder body (17) through the connecting holes (17-1) by using double-end studs (20) and nuts (21).
8. The double-diaphragm-chamber cylinder structure of the diaphragm compressor according to claim 6, wherein: fixing grooves (17-2) are respectively formed in two sides of the cylinder body (17), and the left oil distribution disc (13) and the right oil distribution disc (14) are embedded into the fixing grooves (17-2) in the two sides of the cylinder body (17).
9. The double membrane chamber cylinder block structure of the membrane compressor according to any one of claims 1 to 8, wherein: and sealing rings (25) are respectively arranged between the left cylinder cover (16) and the left oil distribution disc (13), between the left oil distribution disc (13) and the cylinder body (17), between the right oil distribution disc (14) and the cylinder body (17) and between the right cylinder cover (18) and the right oil distribution disc (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210110281.0A CN114278545A (en) | 2022-01-29 | 2022-01-29 | Double-diaphragm-cavity cylinder body structure of diaphragm compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210110281.0A CN114278545A (en) | 2022-01-29 | 2022-01-29 | Double-diaphragm-cavity cylinder body structure of diaphragm compressor |
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| Publication Number | Publication Date |
|---|---|
| CN114278545A true CN114278545A (en) | 2022-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210110281.0A Pending CN114278545A (en) | 2022-01-29 | 2022-01-29 | Double-diaphragm-cavity cylinder body structure of diaphragm compressor |
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| CN (1) | CN114278545A (en) |
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- 2022-01-29 CN CN202210110281.0A patent/CN114278545A/en active Pending
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