CN217300834U - Cooling structure for cylinder cover of diaphragm compressor - Google Patents
Cooling structure for cylinder cover of diaphragm compressor Download PDFInfo
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- CN217300834U CN217300834U CN202220911791.3U CN202220911791U CN217300834U CN 217300834 U CN217300834 U CN 217300834U CN 202220911791 U CN202220911791 U CN 202220911791U CN 217300834 U CN217300834 U CN 217300834U
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- cooling water
- water channel
- cylinder cap
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
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Abstract
The utility model discloses a diaphragm compressor cylinder cap cooling structure, including the cylinder cap, be equipped with inlet channel, exhaust duct, mounting hole and cooling water course on the cylinder cap, be equipped with membrane cavity profile, its characterized in that on the terminal surface in the cylinder cap: the cooling water channel is a curved cooling water channel, a cooling water inlet and a cooling water outlet of the curved cooling water channel are arranged on the side face of the cylinder cover, and the curved cooling water channel is close to the exhaust hole channel. The utility model discloses the cooling water course of processing is close high-temperature region as far as possible, derives the heat, is favorable to improving the cooling effect of cylinder cap, and the curvilinear figure pore avoids the local stress that straight hole processing brought, is favorable to prolonging the life-span of cylinder cap.
Description
Technical Field
The utility model relates to an improvement invention of compressor especially relates to an improvement invention of diaphragm compressor cylinder cap cooling structure.
Background
The diaphragm compressor is a special positive displacement compressor and is widely applied to the fields of chemical industry, environmental protection, medicine and the like. In recent years, the hydrogen energy industry has been rapidly developed, and the hydrogen refueling station is important as a refueling station for fuel cell vehicles. The diaphragm compressor has good sealing performance and high compression ratio, can ensure the cleanness of a compression medium, can meet the requirement of hydrogen compression of a hydrogenation station, is widely used, is used as one of key equipment of the hydrogenation station, and has important significance on the construction and popularization of the hydrogenation station.
The diaphragm compressor drives a crank connecting rod through a motor to drive a piston to push hydraulic oil to reciprocate, so that a diaphragm deforms to change the volume of a diaphragm cavity on the air side, and the periodical work of expansion, air suction, compression and exhaust of a compressed medium is realized. The diaphragm compressor has a high compression ratio, and generates a large amount of compression heat after the gas is compressed, particularly at the positions where the exhaust gas passes, such as the curved surface of a cylinder cover and the vicinity of an exhaust duct. Because the cylinder cap is thick, hardly go out inside heat dissipation, consequently the inside great thermal stress that can produce of diaphragm compressor cylinder cap can lead to the cylinder cap to warp, the bolt is not hard up when serious, influences the reliability of compressor operation.
The traditional diaphragm compressor generally adopts a water-cooling mode to cool a cylinder cover, and multi-channel circulating cooling is realized by processing linear holes in the cylinder cover and combining pipe plugs. Although the temperature of the cylinder cover can be reduced to a certain degree, the position of the water channel is far away from a high-temperature area of the exhaust duct, the number of holes formed in the side face of the cylinder cover is large in order to meet the cooling requirement, stress concentration can be generated at the tail end of each hole by processing the straight holes, the thermal stress problem of the cylinder cover cannot be effectively improved, and the strength of the cylinder cover is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that overcome prior art not enough, provide a diaphragm compressor cylinder cap cooling structure, can solve the traditional cooling structure of cylinder cap and keep away from the high temperature district, the cooling effect is not obvious, produces stress concentration in cylinder cap portion, at the more intensity scheduling problem that brings of cylinder cap side trompil number.
In order to solve the technical problem, the utility model discloses an adopt following technical scheme to realize: this kind of diaphragm compressor cylinder cap cooling structure, including the cylinder cap, be equipped with inlet channel, exhaust duct, mounting hole and cooling water course on the cylinder cap, be equipped with membrane chamber profile, its characterized in that on the terminal surface in the cylinder cap: the cooling water channel is a curved cooling water channel, a cooling water inlet and a cooling water outlet of the curved cooling water channel are arranged on the side face of the cylinder cover, and the curved cooling water channel is close to the exhaust hole channel.
Preferably, the cooling water channel is a single-channel curved cooling water channel, and the number of the corresponding cooling water inlets and the number of the corresponding cooling water outlets are one.
Preferably, the cooling water passage is symmetrical with respect to a common center line of the intake duct and the exhaust duct.
Preferably, the cooling water passage is substantially W-shaped, and is curved and circuitous on a common center line of the intake duct and the exhaust duct and on both sides thereof.
Preferably, the curvature radius of the curved cooling water channel is not less than 30 mm.
Preferably, the aperture of the curved cooling water channel is 9 mm.
The utility model has the advantages that the improved cylinder cover cooling structure of the diaphragm compressor is characterized in that a curved cooling water channel is processed in the cylinder cover, the cooling water channel is symmetrical about the common central line of the air inlet and outlet holes of the cylinder cover and is as close to the air outlet hole channel as possible, so that the cooling effect of the cylinder cover can be improved to a greater extent; in addition, the curved cooling water channel can not leave the structural shape of the sudden change that produces stress concentration in the cylinder cap after processing, only has 2 apertures on the cylinder cap side, and one is the cooling water entry, and one is the cooling water export, compares traditional cooling water channel, can improve the inside too high local stress problem of cylinder cap, improves cylinder cap intensity, has important meaning to the long-time even running of diaphragm compressor.
Drawings
The following describes the present invention in further detail with reference to the accompanying drawings.
Fig. 1 is the structural schematic diagram of the cylinder cover of the present invention.
Fig. 2 is a top view of the cylinder head structure of the present invention.
Fig. 3 is the assembly drawing of the cylinder cover and the cylinder body of the utility model.
Detailed Description
The drawings show the structure of the present invention, and the details thereof will be further described with reference to the drawings. In this embodiment, referring to fig. 1-3, the cooling structure of the cylinder head of the diaphragm compressor includes a cylinder head 1, where the cylinder head 1 is provided with an air inlet duct 2, an air outlet duct 3, a mounting hole 4, and a cooling water channel 5, the air outlet duct 3 is located at the center of the cylinder head 1, the air inlet duct 2 is located at one side of the air outlet duct 3, the mounting hole 4 is a bolt hole circumferentially and uniformly distributed on an outer ring of the cylinder head 1, and is used for performing bolt connection between the cylinder head 1 and a cylinder body 6, and an inner end face of the cylinder head 1 is provided with a film cavity profile 7, i.e., an arc-shaped groove, for cooperating with a film; the cooling water channel 5 is a curved cooling water channel 5, a cooling water inlet 8 and a cooling water outlet 9 of the curved cooling water channel 5 are arranged on the side surface of the cylinder cover 1, and the curved cooling water channel 5 is close to the exhaust duct 3.
The utility model discloses an operating principle, the compressor operation, when hydraulic oil in the oil pocket promoted the diaphragm and takes place to warp to the 1 end motion of cylinder cap, gas in the cylinder cap is compressed, compressed gas's pressure rises, the temperature risees, when atmospheric pressure is greater than the exhaust pressure, gas is discharged from exhaust duct, the position that compressed gas flowed through all has higher temperature, this moment water gets into from the cooling water inlet of cylinder cap 1, flow along curvilinear figure cooling water course 5, and flow out from the cooling water export 9 of cylinder cap 1 behind the 1 heat transfer of cylinder cap, it is far away apart from the high temperature zone to solve 1 traditional cooling structure of cylinder cap with this, the cooling effect is not obvious, produce stress concentration scheduling problem in 1 portion of cylinder cap.
As a further improved specific implementation manner, the cooling water channel 5 is a single-channel curved cooling water channel 5, and the number of the corresponding cooling water inlets 8 and the number of the corresponding cooling water outlets 9 are both one, so that strength reduction caused by a large number of holes formed in the side surface of the cylinder cover 1 is avoided.
As a further improved embodiment, the cooling water passage 5 is symmetrical about a common center line of the intake duct 2 and the exhaust duct 3; preferably, the cooling water channel 5 is substantially W-shaped, and bends and roundabouts are generated on and at two sides of a common central line of the air inlet duct 2 and the air outlet duct 3, so that the curved cooling water channel 5 is close to the air outlet duct 3 as much as possible, and the heat exchange effect is improved.
As a further improved embodiment, the curvature radius of the curved cooling water channel 5 is not less than 30mm, so that the structural stability of the curved cooling water channel 5 is ensured, and the curved cooling water channel is convenient to process.
As a further improved specific implementation mode, the aperture of the curved cooling water channel 5 is 9mm, and the flow rate and the structural stability of the cooling water are both considered.
In summary, the above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a diaphragm compressor cylinder cap cooling structure, including the cylinder cap, be equipped with inlet duct, exhaust duct, mounting hole and cooling water course on the cylinder cap, be equipped with membrane chamber profile, its characterized in that on the terminal surface in the cylinder cap: the cooling water channel is a curved cooling water channel, a cooling water inlet and a cooling water outlet of the curved cooling water channel are arranged on the side surface of the cylinder cover, and the curved cooling water channel is close to the exhaust gas duct; the cooling water channel is a single-channel curved cooling water channel, and the number of the corresponding cooling water inlets and the number of the corresponding cooling water outlets are one; the cooling water channel is symmetrical about a common center line of the intake duct and the exhaust duct.
2. The diaphragm compressor head cooling structure of claim 1, wherein: the cooling water channel is approximately W-shaped, and is bent and roundabout on the common central line and two sides of the air inlet channel and the air outlet channel.
3. The diaphragm compressor head cooling structure of claim 1, wherein: the curvature radius of the curved cooling water channel is not less than 30 mm.
4. The diaphragm compressor head cooling structure of claim 1, wherein: the aperture of the curved cooling water channel is 9 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220911791.3U CN217300834U (en) | 2022-04-20 | 2022-04-20 | Cooling structure for cylinder cover of diaphragm compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220911791.3U CN217300834U (en) | 2022-04-20 | 2022-04-20 | Cooling structure for cylinder cover of diaphragm compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217300834U true CN217300834U (en) | 2022-08-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202220911791.3U Active CN217300834U (en) | 2022-04-20 | 2022-04-20 | Cooling structure for cylinder cover of diaphragm compressor |
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| Country | Link |
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| CN (1) | CN217300834U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114753992A (en) * | 2022-04-20 | 2022-07-15 | 浙江强盛压缩机制造有限公司 | Diaphragm compressor cylinder cover cooling structure and machining method thereof |
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2022
- 2022-04-20 CN CN202220911791.3U patent/CN217300834U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114753992A (en) * | 2022-04-20 | 2022-07-15 | 浙江强盛压缩机制造有限公司 | Diaphragm compressor cylinder cover cooling structure and machining method thereof |
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