CN112253429A - Integrated cylinder cover for deep cooling refrigerator compressor - Google Patents
Integrated cylinder cover for deep cooling refrigerator compressor Download PDFInfo
- Publication number
- CN112253429A CN112253429A CN202011281696.1A CN202011281696A CN112253429A CN 112253429 A CN112253429 A CN 112253429A CN 202011281696 A CN202011281696 A CN 202011281696A CN 112253429 A CN112253429 A CN 112253429A
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- China
- Prior art keywords
- cavity
- compressor
- connecting plate
- muffler
- cylinder head
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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
- 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
- F04B39/125—Cylinder heads
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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
- F04B39/0027—Pulsation and noise damping means
- F04B39/0083—Pulsation and noise damping means using blow off silencers
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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
- F04B39/14—Provisions for readily assembling or disassembling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
The invention relates to the field of compressors, in particular to a compressor for a deep cooling refrigerator; the invention aims to provide an integrated cylinder cover for a compressor of a deep cooling refrigerator, which has better sealing property. Integral type cylinder head for cryrogenic refrigerator compressor, including the cylinder head, still include muffler and muffler connecting plate, be equipped with the inlet port on the muffler, give vent to anger interface and flange, the inlet port passes through the cavity intercommunication with the interface of giving vent to anger, flange's inner ring and the interface intercommunication of giving vent to anger are equipped with the low pressure air inlet on the cylinder head, gas outlet and low pressure air inlet fixed connection and intercommunication on the muffler connecting plate, flange and muffler connecting plate fixed connection, gas outlet and the interface intercommunication of giving vent to anger.
Description
Technical Field
The invention relates to the field of compressors, in particular to a compressor for a deep cooling refrigerator.
Background
In the fields of medical treatment, quick freezing and deep cooling of food and the like, the cryogenic compressor with low use cost and high reliability is gradually developed, the refrigerating working medium is a mixed working medium, the evaporation temperature is required to be low according to the characteristics of the mixed working medium, the temperature in the tank reaches-60 ℃ to-70 ℃, the temperature difference of the working medium entering and exiting the compressor is very large, and the use working condition is worse than that of a household compressor.
The existing deep cooling compressor, the muffler is mostly made of plastic, the cylinder cover and the compressor body are connected by bolts, the muffler is communicated with the air suction port on the cylinder cover, and the air outlet interface of the muffler is compressed between the cylinder cover and the compressor body, when the compressor works, the working medium enters the muffler from the air inlet of the muffler, then enters the air suction port on the cylinder cover from the air outlet interface of the muffler, the connection mode has a gap between the air inlet of the cylinder cover and the air outlet of the muffler, the gap is in a negative pressure state during the air suction process of the compressor, the refrigerant oil can be sucked into the cylinder hole of the compressor from the gap and mixed with the refrigerant, high-temperature and high-pressure gas-liquid is formed during the compression process of the compressor, then the mixed gas-liquid can enter the muffler from the air suction hole of the muffler, the shell and the internal pipeline of the muffler are easily, therefore, the silencer is damaged, the working medium is leaked, and the compressor cannot work normally.
Disclosure of Invention
The invention aims to provide an integrated cylinder cover for a compressor of a deep cooling refrigerator, which has better sealing property.
The technical scheme adopted by the invention for solving the technical problems is as follows: integral type cylinder head for cryrogenic refrigerator compressor, including the cylinder head, still include muffler and muffler connecting plate, be equipped with the inlet port on the muffler, give vent to anger interface and flange, the inlet port passes through the cavity intercommunication with the interface of giving vent to anger, flange's inner ring and the interface intercommunication of giving vent to anger are equipped with the low pressure air inlet on the cylinder head, gas outlet and low pressure air inlet fixed connection and intercommunication on the muffler connecting plate, flange and muffler connecting plate fixed connection, gas outlet and the interface intercommunication of giving vent to anger.
Furthermore, the cavity of the silencer consists of a left cavity, a middle cavity and a right cavity, a partition plate is arranged in the middle cavity and divides the middle cavity into an upper cavity and a lower cavity, the upper cavity and the lower cavity are communicated through a pipeline, the left cavity and the right cavity are respectively communicated with the lower cavity through pipelines, an air inlet hole communicated with the left cavity or the right cavity is formed in the left cavity or the right cavity, and a pipeline communicated with the air inlet hole is formed in the left cavity or the right cavity.
Further, when the air inlet hole is formed in the right cavity, the distance from the axis of the pipeline for communicating the left cavity with the middle cavity to the lower surface of the partition plate is larger than the distance from the axis of the pipeline for communicating the right cavity with the middle cavity to the lower surface of the partition plate.
Further, when the air inlet hole is formed in the left cavity, the distance from the axis of the pipeline for communicating the left cavity with the middle cavity to the lower surface of the partition plate is smaller than the distance from the axis of the pipeline for communicating the right cavity with the middle cavity to the lower surface of the partition plate.
Further, the upper cavity and the lower cavity are communicated through two pipelines.
Further, the absolute value of the difference between the distances from the end surfaces of the two pipelines in the upper cavity to the upper surface of the partition plate is larger than zero.
Furthermore, the pipeline is a Bundy tube, and the diameter of the Bundy tube is 6.35 mm-8.00 mm.
Furthermore, a ribbed plate is arranged between the silencer connecting plate and the cylinder cover, and the silencer connecting plate and the cylinder cover are both connected with the ribbed plate.
Furthermore, hasps are uniformly arranged on the periphery of the connecting flange and are in contact with the silencer connecting plate to tighten the connecting flange and the silencer connecting plate.
Furthermore, the connecting flange is riveted with the connecting plate of the silencer, and a sealing bonding material is arranged between the connecting flange and the connecting plate of the silencer.
The invention has the beneficial effects that: compared with the connection mode of the cylinder cover and the silencer of the existing compressor, the cylinder cover is fixedly connected with the silencer connecting plate, and the connecting flange on the air outlet interface of the silencer is fixedly connected with the silencer connecting plate, so that the working medium passage of the silencer is communicated with the low-pressure air inlet on the cylinder cover, and then the noise of the working medium before entering the compressor is reduced.
Drawings
FIG. 1 is a front view of the structure of the present invention;
FIG. 2 is a schematic view of the cylinder head and muffler attachment plate after they have been joined together;
FIG. 3 is a schematic view of the structure of a muffler;
FIG. 4 is an isometric view of a structure of the present invention;
parts, positions and numbers in the drawings: the cylinder cover comprises a cylinder cover 1, a silencer connecting plate 101, an air outlet 1011, a low-pressure air inlet 102, a rib plate 103, a silencer 2, a middle cavity 201, a partition 2011, a left cavity 202, a right cavity 203, an air inlet 2031, a connecting flange 204, a buckle 205 and a pipeline 206.
Detailed Description
The invention will be further explained with reference to the drawings.
The up, down, left and right orientations shown in fig. 1 are the up, down, left and right orientations of the respective parts.
As shown in fig. 1 and 4, the integral cylinder head for the cryogenic refrigerator compressor comprises a cylinder head 1, and further comprises a silencer 2 and a silencer connecting plate 101, wherein an air inlet hole 2031 is formed in the silencer 2, an air outlet interface and a connecting flange 204 are formed in the silencer 2, the air inlet hole 2031 and the air outlet interface are communicated through a cavity, an inner ring of the connecting flange 204 is communicated with the air outlet interface, a low-pressure air inlet 102 is formed in the cylinder head 1, an air outlet 1011 formed in the silencer connecting plate 101 is fixedly connected and communicated with the low-pressure air inlet 102, the silencer connecting plate 101 and the cylinder head 1 are welded, cast and the like, the connecting flange 204 and the silencer connecting plate 101 are fixedly connected through welding, screwing, riveting and the like, and.
In order to make the silencing effect good, the cavity of the silencer 2 is composed of a left cavity 202, a middle cavity 201 and a right cavity 203, a partition 2011 is arranged in the middle cavity 201, the partition 2011 divides the middle cavity 201 into an upper cavity and a lower cavity, the upper cavity and the lower cavity are communicated through a pipeline 206, the left cavity 202 and the right cavity 203 are respectively communicated with the lower cavity through the pipeline 206, an air inlet hole 2031 communicated with the left cavity 202 or the right cavity 203 is arranged on the left cavity 202 or the right cavity 203, the pipeline 206 communicated with the air inlet hole 2031 is arranged in the left cavity 202 or the right cavity 203, the partition 2011 of the middle cavity 201 divides the middle cavity into the upper cavity and the lower cavity, the volume of each cavity is smaller than that of the cavity provided with the air inlet hole 2031, when the compressor operates to suck air, the middle cavity 201 plays an expanding role to eliminate low-frequency noise, so that the silencing effect is better, the silencer is preferably made of a steel material, the, the occurrence of part of high-frequency noise is effectively avoided, and the noise of the high-frequency noise is lower than that of a PPT material silencer in a high-frequency noise frequency band.
In order to reduce noise of different frequencies, when the intake holes 2031 are provided in the right chamber 203, the distance from the axis of the pipe 206 communicating the left chamber 202 and the middle chamber 201 to the lower surface of the partition 2011 is greater than the distance from the axis of the pipe 206 communicating the right chamber 201 and the middle chamber 206 to the lower surface of the partition 2011.
In order to reduce noise of different frequencies, when the intake holes 2031 are provided in the left chamber 202, the distance from the axis of the pipe 206 communicating the left chamber 202 and the middle chamber 201 to the lower surface of the partition 2011 is smaller than the distance from the axis of the pipe 206 communicating the right chamber 201 and the middle chamber 206 to the lower surface of the partition 2011.
In order to reduce noise at different frequencies, the upper and lower chambers are connected by two pipes 206.
In order to reduce noise at different frequencies, the absolute value of the difference in the distances from the end surfaces of the two pipes 206 in the upper chamber to the upper surface of the partition 2011 is greater than zero.
In order to make the noise reduction effect good, the pipeline 206 is a bundy pipe, and the diameter of the bundy pipe is 6.35 mm-8.00 mm.
In order to ensure the stability of the silencer connecting plate 101 during loading and enhance the supporting capability of the silencer connecting plate 101, a rib plate 103 is arranged between the silencer connecting plate 101 and the cylinder head 1, and the silencer connecting plate 101 and the cylinder head 1 are both connected with the rib plate 103.
In order to further ensure the tightness between the connecting flange 204 and the silencer connecting plate 101 and the stability of the connection, the connecting flange 204 is provided with buckles 205 uniformly around the connecting flange, the buckles 205 are in contact with the silencer connecting plate 101, the connecting flange 204 and the silencer connecting plate 101 are tensioned, and the secondary connection can be realized.
In order to improve the sealing performance between the connecting flange 204 and the silencer connecting plate 101, the connecting flange 204 is riveted to the silencer connecting plate 101, and a sealing adhesive material is provided between the connecting flange 204 and the silencer connecting plate 101.
Claims (10)
1. Cryrogenic refrigerator is integral type cylinder head for compressor, including cylinder head (1), its characterized in that: still include muffler (2) and muffler connecting plate (101), be equipped with inlet port (2031) on muffler (2), interface and flange (204) give vent to anger, inlet port (2031) and the interface of giving vent to anger pass through the cavity intercommunication, the inner ring and the interface intercommunication of giving vent to anger of flange (204), be equipped with low pressure air inlet (102) on cylinder head (1), gas outlet (1011) on muffler connecting plate (101) and low pressure air inlet (102) fixed connection and intercommunication, flange (204) and muffler connecting plate (101) fixed connection, gas outlet (1011) and the interface intercommunication of giving vent to anger.
2. The integral cylinder cover for the compressor of the cryogenic refrigerator according to claim 1, wherein: the cavity of muffler (2) comprises left chamber (202), middle chamber (201) and right chamber (203), be equipped with baffle (2011) in middle chamber (201), the baffle separates middle chamber (201) for epicoele and cavity of resorption, epicoele and cavity of resorption pass through pipeline (206) and communicate, left chamber (202), right chamber (203) pass through pipeline (206) with the cavity of resorption respectively and communicate, be equipped with inlet port (2031) that communicate with it on left chamber (202) or right chamber (203), set up pipeline (206) that one and inlet port (2031) communicate in left chamber (202) or right chamber (203).
3. The integral cylinder cover for the compressor of the cryogenic refrigerator according to claim 2, wherein: when the air inlet hole (2031) is arranged on the right cavity (203), the distance from the axis of the pipeline (206) for communicating the left cavity (202) with the middle cavity (201) to the lower surface of the clapboard (2011) is larger than the distance from the axis of the pipeline (206) for communicating the right cavity with the middle cavity (201) to the lower surface of the clapboard (2011).
4. The integral cylinder cover for the compressor of the cryogenic refrigerator according to claim 2, wherein: when the air inlet hole (2031) is arranged on the left cavity (202), the distance from the axis of the pipeline (206) for communicating the left cavity (202) and the middle cavity (201) to the lower surface of the clapboard (2011) is less than the distance from the axis of the pipeline (206) for communicating the right cavity and the middle cavity (201) to the lower surface of the clapboard (2011).
5. The integral cylinder cover for the compressor of the cryogenic refrigerator according to claim 2, wherein: the upper and lower chambers are in communication via two conduits (206).
6. The integral cylinder head for a compressor of a cryogenic refrigerator according to claim 5, wherein: the absolute value of the difference in the distances from the end surfaces of the two pipes (206) in the upper cavity to the upper surface of the diaphragm (2011) is greater than zero.
7. An integral cylinder head for a compressor of a cryogenic refrigerator according to any one of claims 2 to 6, characterized in that: the pipeline (206) is a Bundy tube, and the diameter of the Bundy tube is 6.35 mm-8.00 mm.
8. An integral cylinder head for a compressor of a cryogenic refrigerator according to any one of claims 1 to 6, characterized in that: a ribbed plate (103) is arranged between the silencer connecting plate (101) and the cylinder cover (1), and the silencer connecting plate (101) and the cylinder cover (1) are both connected with the ribbed plate (103).
9. The integral cylinder head for a compressor of a cryogenic refrigerator according to claim 8, wherein: buckles (205) are uniformly arranged on the periphery of the connecting flange (204), and the buckles (205) are in contact with the silencer connecting plate (101) to tighten the connecting flange (204) and the silencer connecting plate (101).
10. The integral cylinder head for a compressor of a cryogenic refrigerator according to claim 8, wherein: the connecting flange (204) is riveted with the silencer connecting plate (101), and a sealing bonding material is arranged between the connecting flange (204) and the silencer connecting plate (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011281696.1A CN112253429A (en) | 2020-11-16 | 2020-11-16 | Integrated cylinder cover for deep cooling refrigerator compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011281696.1A CN112253429A (en) | 2020-11-16 | 2020-11-16 | Integrated cylinder cover for deep cooling refrigerator compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112253429A true CN112253429A (en) | 2021-01-22 |
Family
ID=74266145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011281696.1A Pending CN112253429A (en) | 2020-11-16 | 2020-11-16 | Integrated cylinder cover for deep cooling refrigerator compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112253429A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112922807A (en) * | 2021-02-05 | 2021-06-08 | 青岛万宝压缩机有限公司 | Air suction silencing cover device, compressor and method |
-
2020
- 2020-11-16 CN CN202011281696.1A patent/CN112253429A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112922807A (en) * | 2021-02-05 | 2021-06-08 | 青岛万宝压缩机有限公司 | Air suction silencing cover device, compressor and method |
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