CN115853746A - Diaphragm head assembly with cooling function for liquid-driven diaphragm compressor - Google Patents
Diaphragm head assembly with cooling function for liquid-driven diaphragm compressor Download PDFInfo
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- CN115853746A CN115853746A CN202211573041.0A CN202211573041A CN115853746A CN 115853746 A CN115853746 A CN 115853746A CN 202211573041 A CN202211573041 A CN 202211573041A CN 115853746 A CN115853746 A CN 115853746A
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Abstract
The invention discloses a membrane head assembly with a cooling function for a liquid-driven membrane compressor, and belongs to the technical field of membrane compressor equipment. It includes: the oil distribution plate is characterized in that an air side membrane head, a membrane, an oil distribution plate and an oil side membrane head are sequentially arranged along the axial direction, a plurality of transverse cooling channels are circumferentially arranged on the air side membrane head along the radial direction, and adjacent transverse cooling channels are mutually communicated; a plurality of longitudinal cooling channels are arranged on the air side membrane head along the axial circumference, and the adjacent longitudinal cooling channels are communicated with each other; the transverse cooling channel is communicated with the longitudinal cooling channel and is communicated with a cooling water inlet channel and a cooling water outlet channel, and the cooling water inlet channel and the cooling water outlet channel are respectively arranged on the air side membrane head. By the invention, the problem that the traditional cooling mode cannot solve the problem that the temperatures of the exhaust valve at the center of the membrane head and the pressure shaft of the exhaust valve are high can be solved; simultaneously, the oil-way channel is additionally arranged on the oil side membrane head, and the oil side membrane head is cooled by cooling hydraulic oil through the system, so that the problem that the oil side membrane head is rusted due to a water cooling mode is avoided.
Description
Technical Field
The invention relates to a membrane head assembly with a cooling function for a liquid-driven membrane compressor, and belongs to the technical field of membrane compressor equipment.
Background
The diaphragm compressor is a positive displacement compressor, a system is divided into a hydraulic part and a gas part through a diaphragm, and the hydraulic oil periodically pushes the diaphragm to reciprocate to compress the gas, so that the gas is pressurized. At present, diaphragm compressors have been widely used in the fields of food industry, petroleum industry, chemical industry, aerospace, medicine, scientific research, and the like.
In the prior art, a diaphragm compressor in normal operation generates a large amount of heat when compressing gas, resulting in the entire membrane head assembly operating at a higher temperature. The gas side membrane head is always in a hydrogen environment, so the material of the gas side membrane head is generally stainless steel which is resistant to hydrogen embrittlement, the stainless steel has poor thermal conductivity and low strength, reliability and safety are considered in the design process, the gas side membrane head can be made thick and solid, and the gas side membrane head is difficult to dissipate heat. The diaphragm chamber and even the entire diaphragm head are therefore at a comparatively high temperature during operation of the diaphragm compressor. To normally operate under high temperature, mechanical properties to various materials require just higher, and high temperature also can make the thermal stress of gas side membrane head too high, simultaneously, because the coefficient of thermal expansion of stainless steel is higher, in the compressor operation process, the thermal expansion can lead to the stress of gas side cylinder cap and the connecting bolt of oil side cylinder cap, the screw on the pneumatic valve gland obviously to increase, the phenomenon of splitting appears even, the phenomenon that the screw is not hard up also probably appears when the temperature reduces. From a reliability point of view, it is important to reduce the temperature of the film head during the operation of the compressor.
Through some studies on the temperature field of the diaphragm head, it is found that the high-temperature area on the diaphragm head is mainly near the central exhaust valve and the exhaust valve pressure shaft and the diaphragm cavity, and the temperature is in a decreasing trend along the radial direction of the cylinder cover. In a traditional film head cooling mode, a plurality of through holes are drilled in the side wall of a cylinder cover along the radial direction, and the film head is cooled in a water cooling mode. The cooling mode can not effectively reduce the temperature around the exhaust valve and the exhaust valve pressing shaft, and the cooling effect is poor; in addition, since the oil-side film head is generally processed by carbon steel, cooling by cooling water is liable to cause rusting and contamination of the cooling water.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides a membrane head subassembly of liquid drive diaphragm compressor area refrigerated can solve traditional cooling method and can't solve the higher problem of membrane head center discharge valve and discharge valve pressure axle department temperature.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
a diaphragm head assembly with cooling for a liquid driven diaphragm compressor, comprising: the oil distribution plate is provided with an air side membrane head, a membrane, an oil distribution plate and an oil side membrane head along the axial direction, wherein a plurality of transverse cooling channels are circumferentially arranged on the air side membrane head along the radial direction, and adjacent transverse cooling channels are mutually communicated;
a plurality of longitudinal cooling channels are arranged on the gas side membrane head along the axial circumference, and the adjacent longitudinal cooling channels are communicated with each other;
the transverse cooling channel is communicated with the longitudinal cooling channel and is communicated with a cooling water inlet channel and a cooling water outlet channel, and the cooling water inlet channel and the cooling water outlet channel are respectively arranged on the air side membrane head.
Preferably, the gas side membrane head is provided with a limiting groove along the circumferential direction, the adjacent longitudinal cooling channel is arranged in the limiting groove and is connected with a welding plate, and the limiting groove is fixedly connected with the welding plate.
Preferably, the gas side membrane head is provided with an air inlet channel and an air outlet channel, the air inlet channel is internally provided with an air inlet valve pressing shaft, the bottom of the air inlet channel is connected with an air inlet valve, the air outlet channel is internally provided with an air outlet valve pressing shaft, the bottom of the air outlet channel is connected with an air outlet valve, and the gas side membrane head is provided with a gland which is respectively connected with the air inlet valve pressing shaft and the air outlet valve pressing shaft in a pressing manner.
Preferably, a plurality of groups of oil passage channels are arranged on the oil side membrane head, and adjacent oil passage channels are communicated and connected with an external oil pipe.
Preferably, the upper part of the oil side membrane head is fixedly connected with a cooling disc, the cooling disc is provided with a spiral flow channel, one end of the spiral flow channel is an inlet of the cooling disc, the other end of the spiral flow channel is an outlet of the cooling disc, the inlet of the cooling disc is communicated with an oil filling port of the oil side membrane head, and the outlet of the cooling disc is communicated with an oil outlet and an oil pipe of the oil side membrane head.
The beneficial effects of the invention are:
(1) By adopting the technical scheme of the invention, the gas side membrane head and the oil side membrane head are respectively provided with the cooling channel, so that the temperature of the whole membrane head assembly is reduced in the operation process of the diaphragm compressor;
(2) By adopting the technical scheme of the invention, the radial and axial directions of the gas side membrane head and the oil side membrane head are respectively provided with the cooling channel, so that the heat exchange area for cooling the membrane head is increased, the cooling effect is improved, the temperature of the gas side membrane head is more effectively reduced, and the thermal stress of the gas side membrane head is reduced;
(3) By adopting the technical scheme of the invention, the radial direction of the air side membrane head is communicated with the axial cooling channel, and each channel is mutually connected, so that a dead zone is avoided, and the heat exchange effect is better;
(4) By adopting the technical scheme of the invention, the thermal deformation of the air side membrane head and the air valve pressure shaft is reduced, the extra stress increment caused by the thermal deformation of the membrane head connecting bolt and the air valve pressure cover bolt is also reduced, and the reliability of the connecting bolt is improved;
(5) By adopting the technical scheme of the invention, the membrane head can be prevented from operating at a higher temperature, and the requirements on temperature resistance and thermal ageing resistance of the sealing element and other materials in the membrane head are lowered;
(6) By adopting the technical scheme of the invention, the integral temperature of the membrane head is reduced, so that the temperature of gas in the membrane cavity can be effectively reduced, and the displacement of the compressor is improved.
(7) By adopting the technical scheme of the invention, the heat exchange efficiency is improved by pertinently cooling the local high-temperature area (the exhaust valve and the exhaust valve pressure shaft) of the air side membrane head.
(8) By adopting the technical scheme of the invention, the phenomenon that the oil side membrane head rusts due to the traditional water cooling mode is prevented, and the oil side membrane head is cooled in an oil cooling mode by utilizing an oil circuit cooling system carried by the compressor.
Drawings
Fig. 1 is an overall cross-sectional schematic view of the present invention.
FIG. 2 is a cross-sectional view of a gas side membrane head of the present invention.
FIG. 3 is a top view of a gas side membrane head of the present invention.
Fig. 4 is a cross-sectional view of an oil-side film head of the present invention.
Fig. 5 is an overall cross-sectional view of another embodiment of the present invention.
Fig. 6 is a schematic structural view of the cooling plate of fig. 5 according to the present invention.
In the figure: 1. the cooling water cooling system comprises a gas side membrane head, 1-1 parts of a cooling water inlet channel, 1-2 parts of a cooling water inlet channel, 1-3 parts of a cooling water inlet channel, 1-6 parts of a cooling water inlet channel, 1-7 parts of a cooling water inlet channel, 1-10 parts of a cooling water inlet channel, 1-11 parts of a cooling water inlet channel, 1-14 parts of a cooling water inlet channel, 1-5 parts of a cooling oil distribution plate, 1-8 parts of a cooling water inlet channel, 1-9 parts of a cooling water inlet channel, 1-12 parts of a cooling oil inlet channel, 1-13 parts of a cooling water inlet channel, 2 parts of a cooling water inlet channel, 3 parts of a cooling oil distribution plate, 4 parts of an oil side membrane head, 4-1 parts of a cooling oil inlet channel, 4-2 parts of a cooling oil inlet channel, 5 parts of a membrane head connecting bolt, 6 parts of an air inlet valve pressure shaft, 7 parts of an exhaust valve pressure shaft, 8 parts of a gland, 9 parts of a gland, a gland bolt, 10 parts of an exhaust valve, 11 parts of an intake valve, 12 parts of a cooling disc, 12-1 parts of a cooling disc inlet, 12-2 parts of a cooling disc outlet, 12-3 parts of a cooling disc outlet and a spiral type flow channel.
Detailed Description
In order to make the technical means, the original characteristics, the achieved purpose and the efficacy of the invention easily understood, the invention is further described with reference to the following embodiments.
In the description of the present invention, it is to be understood that the terms "lateral", "longitudinal", "end", "edge", "side wall", "upper", "lower", "directly above", "surface", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "end", "head", "tail", etc. indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are only for convenience of describing technical solutions and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example 1
As shown in fig. 1, a diaphragm head assembly with cooling function of a liquid-driven diaphragm compressor comprises a gas-side diaphragm head 1, a diaphragm 2, an oil distribution disc 3, an oil-side diaphragm head 4, a diaphragm head connecting bolt 5, an air inlet valve 11, an air inlet valve pressure shaft 6, an air outlet valve 10, an air outlet valve pressure shaft 7, a gland 8 and a gland screw 9.
Wherein, membrane head subassembly structure is joined in marriage food tray 3 and places in oil side membrane head 4, and diaphragm 2 is placed on joining in marriage food tray 3, and the air side membrane head 1 of taking cooling channel compresses tightly diaphragm 2 to link to each other with oil side membrane head 4 through membrane head connecting bolt 5. An air inlet valve 11 and an air outlet valve 10 are respectively arranged in a large hole of the air side membrane head 1 (namely, the air inlet valve 11 is arranged in an air inlet channel, and the air outlet valve 10 is arranged in an air outlet channel), a gland 8 is locked on the air side membrane head 1 through a gland screw 9, and meanwhile, the air inlet valve 11 and the air outlet valve 10 are respectively pressed through an air inlet valve pressing shaft 6 and an air outlet valve pressing shaft 7.
Referring to fig. 2-3, the cooling channel of the gas side membrane head 1 is composed of 1-1 to 1-18, wherein 1-1 is a cooling water inlet channel, and the channels 1-2, 1-3, 1-6, 1-7, 1-10, 1-11, 1-14, 1-15, 1-18 are arranged circumferentially around the exhaust valve pressure shaft 7, wherein: the channels 1-2, 1-3, 1-6, 1-7, 1-10, 1-11, 1-14 and 1-15 are all longitudinal cooling channels, and the channels 1-4, 1-5, 1-8, 1-9, 1-12, 1-13 and 1-16 are all transverse cooling channels; from the end face of the gas-side die head 1, channels along the axial direction of the gas-side die head 1 (i.e., longitudinal cooling channels) are connected to 9 cooling channels (i.e., transverse cooling channels) in the radial direction from the side wall of the gas-side die head 1, respectively. Wherein, the channels 1-1 to 1-18 are all communicated to form a complete cooling loop. 1-2 and 1-3 are connected through a limiting groove on the gas side membrane head 1, and the top of the limiting groove is sealed through a welding plate; 1-4 and 1-5 are connected through an external water pipe; 1-6 and 1-7 are connected through a limiting groove on the gas side membrane head 1, and the top of the limiting groove is sealed through a welding plate; 1-8 and 1-9 are connected through an external water pipe; 1-10 and 1-11 are connected through a limiting groove on the gas side membrane head 1, and the top of the limiting groove is sealed through a welding plate; 1-12 and 1-13 are connected through an external water pipe; 1-14 and 1-15 are connected through a limiting groove on the gas side membrane head 1, and the top of the limiting groove is sealed through a welding plate; 1-16 and 1-17 are connected by an external water pipe. The cooling mode greatly increases the cooling area of the film head, can effectively cool the air side film head 1, and simultaneously, the axial cooling channel of the air side film head 1 effectively reduces the temperature near the exhaust valve 10 and the exhaust valve pressure shaft 7.
Referring to fig. 4, the cooling channel (oil channel) of the oil side membrane head is composed of 2 sets and more than 2 sets of channels 4-1 to 4-4, 4-1 is an oil inlet of cooling oil on the oil side membrane head, the channels 4-1 and 4-2 are communicated, the channels 4-3 and 4-4 are communicated, and the channels 4-2 and 4-3 are connected through an external oil pipe to form the cooling channel of the oil side membrane head.
Example 2
As shown in fig. 5 and 6, compared with the embodiment 1, the embodiment 2 has the same cooling scheme of the air side membrane head 1, but the cooling scheme of the oil side membrane head 4 adopts a scheme of adding a cooling disc 12; the cooling pan 12 is installed between the oil distribution pan 3 and the oil-side film head 4. Cooling oil enters the inlet 12-1 of the cooling disc through an oil filling port on the side face of the oil side membrane head 4 and then flows out of the outlet 12-2 of the cooling disc, and the inlet 12-1 of the cooling disc and the outlet 12-2 of the cooling disc are connected with an oil pipe outside through a flow passage on the side face of the oil side membrane head 4. The spiral flow passage 12-3 on the cooling disc 12 can greatly increase the heat exchange area between the cooling oil and the oil side film head, and achieve better cooling effect. The scheme is suitable for scenes with higher requirements on cooling effects.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. A diaphragm head assembly with cooling for a liquid driven diaphragm compressor, comprising: be provided with gas side membrane head, diaphragm, join in marriage food tray, oil side membrane head along the axial, its characterized in that:
a plurality of transverse cooling channels are circumferentially arranged on the gas side membrane head along the radial direction, and the adjacent transverse cooling channels are communicated with each other;
a plurality of longitudinal cooling channels are arranged on the gas side membrane head along the axial circumference, and the adjacent longitudinal cooling channels are communicated with each other;
the transverse cooling channel is communicated with the longitudinal cooling channel and is communicated with a cooling water inlet channel and a cooling water outlet channel, and the cooling water inlet channel and the cooling water outlet channel are respectively arranged on the air side membrane head.
2. The membrane head assembly with cooling for a liquid-driven diaphragm compressor of claim 1, wherein the air-side membrane head is provided with a limiting groove along a circumferential direction, the longitudinal cooling channel is disposed in the limiting groove and connected to the welding plate, and the limiting groove is fixedly connected to the welding plate.
3. The membrane head assembly with cooling for a liquid-driven diaphragm compressor as claimed in claim 1, wherein the air-side membrane head is provided with an inlet passage and an outlet passage, the inlet passage is provided with an inlet valve pressing shaft, the bottom of the inlet passage is connected with an inlet valve, the outlet passage is provided with an outlet valve pressing shaft, the bottom of the outlet passage is connected with an outlet valve, and the air-side membrane head is provided with a gland which is respectively connected with the inlet valve pressing shaft and the outlet valve pressing shaft in a pressing manner.
4. The membrane head assembly with cooling for a liquid-driven diaphragm compressor of claim 1, wherein the oil-side membrane head is provided with a plurality of sets of oil passages, and adjacent oil passages are communicated and connected with an external oil pipe.
5. The membrane head assembly with cooling function for the liquid-driven membrane compressor as claimed in claim 1, wherein a cooling plate is fixedly connected above the oil-side membrane head, a spiral flow passage is formed in the cooling plate, one end of the spiral flow passage is a cooling plate inlet, the other end of the spiral flow passage is a cooling plate outlet, the cooling plate inlet is communicated with an oil filling port of the oil-side membrane head, and the cooling plate outlet is communicated with an oil outlet pipe of the oil-side membrane head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211573041.0A CN115853746A (en) | 2022-12-08 | 2022-12-08 | Diaphragm head assembly with cooling function for liquid-driven diaphragm compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211573041.0A CN115853746A (en) | 2022-12-08 | 2022-12-08 | Diaphragm head assembly with cooling function for liquid-driven diaphragm compressor |
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| Publication Number | Publication Date |
|---|---|
| CN115853746A true CN115853746A (en) | 2023-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211573041.0A Pending CN115853746A (en) | 2022-12-08 | 2022-12-08 | Diaphragm head assembly with cooling function for liquid-driven diaphragm compressor |
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| CN (1) | CN115853746A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1111602A (en) * | 1964-08-10 | 1968-05-01 | Compresseurs A Membrane Corbli | Improvements in or relating to diaphragm pumps and compressors |
| CN113606121A (en) * | 2021-08-31 | 2021-11-05 | 常熟市思源压缩机产业协同创新中心 | Diaphragm type compressor |
| CN216477779U (en) * | 2021-10-25 | 2022-05-10 | 沈阳远大压缩机有限公司 | Diaphragm compressor cylinder sealing structure, compression cylinder and diaphragm compressor |
| CN114635840A (en) * | 2022-03-31 | 2022-06-17 | 安瑞科(蚌埠)压缩机有限公司 | Cooling film head of diaphragm compressor |
-
2022
- 2022-12-08 CN CN202211573041.0A patent/CN115853746A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1111602A (en) * | 1964-08-10 | 1968-05-01 | Compresseurs A Membrane Corbli | Improvements in or relating to diaphragm pumps and compressors |
| CN113606121A (en) * | 2021-08-31 | 2021-11-05 | 常熟市思源压缩机产业协同创新中心 | Diaphragm type compressor |
| CN216477779U (en) * | 2021-10-25 | 2022-05-10 | 沈阳远大压缩机有限公司 | Diaphragm compressor cylinder sealing structure, compression cylinder and diaphragm compressor |
| CN114635840A (en) * | 2022-03-31 | 2022-06-17 | 安瑞科(蚌埠)压缩机有限公司 | Cooling film head of diaphragm compressor |
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