CN116085238A - Cylinder cover, exhaust system and exhaust method for totally-enclosed refrigeration compressor - Google Patents
Cylinder cover, exhaust system and exhaust method for totally-enclosed refrigeration compressor Download PDFInfo
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- CN116085238A CN116085238A CN202211695099.2A CN202211695099A CN116085238A CN 116085238 A CN116085238 A CN 116085238A CN 202211695099 A CN202211695099 A CN 202211695099A CN 116085238 A CN116085238 A CN 116085238A
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- cavity
- cylinder
- channel
- cylinder head
- refrigeration compressor
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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
- F04B39/0055—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes
- F04B39/0061—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes using muffler volumes
Abstract
The invention discloses a cylinder cover, an exhaust system and an exhaust method for a totally-enclosed refrigeration compressor, which comprise a first cavity, a second cavity, a first channel, a third cavity, an annular clearance channel, a fifth cavity and an air outlet on a cover body, and a valve plate assembly arranged between a cylinder seat and the cylinder cover, wherein the cylinder seat is provided with a fourth cavity, the valve plate assembly is provided with a second channel and a third channel, the second channel is communicated with the second cavity and the fourth cavity, and the third channel is communicated with the fourth cavity and the third cavity. This cylinder head structural design is reasonable compact, through the setting of baffle, can separate original a big cavity into a plurality of cavity that has the size to distinguish, and multistage amortization effect can be formed in the setting of a plurality of cavities, can reduce exhaust pulsation, noise reduction improves the competitiveness of compressor product.
Description
Technical Field
The invention relates to the technical field of exhaust of cylinder heads of refrigeration compressors, in particular to a cylinder head, an exhaust system and an exhaust method for a totally-enclosed refrigeration compressor.
Background
The refrigeration compressor is the core of refrigerating system, and it is through compression, circulation refrigerant, in with heat transfer to surrounding environment from inside, and in the refrigeration compressor operation, the suction and exhaust can cause air current pressure pulsation, can produce the noise, influences user experience.
In general, an intake muffler is provided at an intake port of a compressor cylinder head, and an exhaust chamber is provided at a cylinder block to perform noise reduction and exhaust. As shown in fig. 1 and 2 of the specification, a refrigerant is sucked in through an air inlet 2, sucked into a cylinder in a cylinder seat through a hole in a valve plate, compressed by the cylinder, discharged into a cavity a, then flowed into an exhaust cavity of the cylinder seat through a channel a, and finally discharged out of a compressor through an exhaust coil; although the exhaust system has a certain silencing effect, the exhaust system has a single structure, only has two stages of silencing and has poor silencing effect.
Disclosure of Invention
The invention aims at solving the problems existing in the prior art and provides a cylinder cover, an exhaust system and an exhaust method for a fully-closed refrigeration compressor.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the cylinder cover for the totally-enclosed refrigeration compressor comprises a cover body, screw holes are respectively formed in four corners of the cover body, an air inlet clamping wall is arranged at the middle lower part of the cover body, a first cavity is formed among the outer wall of the air inlet clamping wall, the outer wall of the screw holes and the inner wall of the cover body, a first baffle is arranged between the outer walls of a pair of screw holes on at least one side of the cover body, a second cavity is formed between the first baffle and the inner wall of the cover body, and a first channel for communicating the first cavity with the second cavity is formed in the first baffle; a second baffle is further arranged between the first baffle and the inner side wall of the cover body, and a third cavity is formed between the second baffle and the screw hole; an annular gap channel is arranged between a screw connected with a screw hole close to the third cavity and the screw hole, a fifth cavity is arranged on the back surface of the cover body close to the screw hole and communicated with the annular gap channel, and an air outlet is further arranged on the fifth cavity.
This cylinder head structural design is reasonable compact, through the setting of baffle, can separate original a big cavity into a plurality of cavity that has the size to distinguish, and multistage amortization effect can be formed in the setting of a plurality of cavities, can reduce exhaust pulsation, noise reduction improves the competitiveness of compressor product. Meanwhile, the cylinder cover can be compatible with the existing cylinder seat and compressor, so that the variety of the cylinder cover is reduced, the universality of parts is improved, and the quantity of the parts and the management cost are reduced.
Through the first baffle with the setting of second baffle can be in the inner periphery of lid forms three cavity, cooperates annular clearance passageway with the setting of fifth cavity can form the amortization chamber of 3-5 grades on the cylinder cap for the refrigerant can obtain abundant amortization at the exhaust in-process, and exhaust noise is less, has promoted the holistic exhaust performance of compressor, and user experience feel can be better.
The cylinder cover adopting the structure can reduce the arrangement of the exhaust silencing cavity on the cylinder seat, optimize the structure of the cylinder seat, and set the final air outlet below the cylinder cover, so that the refrigerant can go through a longer reciprocating path in the exhaust process, and the space of the connecting screw of the cylinder cover can be fully utilized.
The annular clearance channel formed at the joint between the screw and the screw hole can be used for exhausting without affecting the connection of the screw and simultaneously utilizing the tiny annular clearance at the joint, so that an independent exhaust channel is not needed to be arranged.
Further, the inner side of the air inlet clamping wall is connected with an air inlet channel, an air inlet is arranged on the air inlet channel, and an air inlet silencing cavity is connected below the air inlet channel.
The air inlet clamping wall utilizes the heart-shaped inner wall structure of the air inlet clamping wall, can be better clamped and connected with the air inlet channel, an air inlet towards the valve plate assembly and the cylinder seat is formed at the air inlet clamping wall, the air inlet silencing cavity sucks air-inlet silencing refrigerant into the air inlet channel, and the refrigerant can enter a cylinder in the cylinder seat from the air inlet to perform compression operation.
Further, the screw holes are provided with semi-arc outer walls, and the air inlet clamping wall is arranged in the area between the pair of screw holes below and bulges towards the middle part of the cover body.
Further, the depth of the middle part of the first cavity is larger than the depth of the periphery, so that the first cavity with larger volume can be formed.
Further, the volume of the second cavity is smaller than the volume of the first cavity and larger than the volume of the third cavity, and the depth of the second cavity is also larger than the depth of the third cavity, so that hierarchical and graded silencing and noise reduction effects are formed.
Further, the first channel is disposed on the first baffle proximate to the second baffle.
Further, the axial dimension of the annular gap channel is larger than the depth of the third cavity, so that the refrigerant in the third cavity can be discharged into the fifth cavity.
Further, the fifth cavity is an annular cavity and is coaxially arranged with the screw hole close to the fifth cavity, and the air outlet is arranged below the fifth cavity.
Further, an exhaust system for a totally enclosed refrigeration compressor, the exhaust system further comprises a cylinder seat used in cooperation with the cylinder cover, and a valve plate assembly arranged between the cylinder seat and the cylinder cover, a fourth cavity is arranged on the cylinder seat, a second channel and a third channel are arranged on the valve plate assembly, the second channel is communicated with the second cavity and the fourth cavity, and the third channel is communicated with the fourth cavity and the third cavity; the cylinder block and the valve plate assembly are also provided with annular clearance channels at the connecting screws.
Further, in the exhaust method for the totally enclosed refrigeration compressor, the refrigerant is sucked into the air inlet of the cylinder cover through the air inlet silencing cavity, sucked into the cylinder in the cylinder seat through the hole on the valve plate assembly, compressed through the piston, then discharged into the first cavity through the valve plate assembly, discharged into the second cavity through the first channel, then discharged into the fourth cavity on the cylinder seat through the second channel on the valve plate assembly, discharged into the third cavity through the third channel, then discharged into the fifth cavity through the annular clearance channel between the screw hole and the screw, discharged out of the cylinder cover through the air outlet on the fifth cavity, and discharged into the exhaust coil through the exhaust pipe. Through above-mentioned exhaust system and exhaust route, can obviously prolong the removal route of refrigerant, make it can experience three at least cavitys, five-stage amortization, exhaust pulsation and vibration can reach to reduce by a wide margin, and the noise can obtain better control, and the operation noise of whole refrigeration compressor is lower, and the user experience of product is better.
Compared with the prior art, the invention has the beneficial effects that: 1. the cylinder cover is reasonable and compact in structural design, an original large cavity can be divided into a plurality of cavities with different sizes through the arrangement of the baffle, the arrangement of the plurality of cavities can form a multistage silencing effect, exhaust pulsation can be reduced, noise is reduced, and the competitiveness of compressor products is improved; 2. the cylinder cover can be compatible with the existing cylinder seat and compressor, so that the variety of the cylinder cover is reduced, the universality of parts is improved, and the quantity and management cost of the parts are reduced; 3. the cylinder cover with the structure can reduce the arrangement of the exhaust silencing cavity on the cylinder seat, optimize the structure of the cylinder seat, and set the final air outlet below the cylinder cover, so that the refrigerant can go through a longer reciprocating path in the exhaust process, and the space at the connecting screw of the cylinder cover can be fully utilized; 4. through this exhaust system and exhaust route, can obviously prolong the travel path of refrigerant, make it can experience three at least cavitys, five-stage amortization, exhaust pulsation and vibration can reach to reduce by a wide margin, and the noise can obtain better control, and the operation noise of whole refrigeration compressor is lower, and the user experience of product is better.
Drawings
FIG. 1 is a prior art internal cavity configuration of a cylinder head;
FIG. 2 is a prior art exhaust structure of a cylinder head and a cylinder block;
fig. 3 is a schematic view showing the structure of a cylinder head for a totally enclosed type refrigeration compressor according to the present invention;
FIG. 4 is a schematic diagram of an exhaust system according to the present invention;
in the figure: 1. a cover body; 2. an air inlet; 3. a cavity a; 4. a cylinder block; 5. a channel a; 6. an exhaust chamber; 7. an air inlet clamping wall; 8. an air intake passage; 9. a first cavity; 10. a first baffle; 11. a second cavity; 12. a first channel; 13. a second baffle; 14. a third cavity; 15. screw holes; 16. an annular clearance channel; 17. a fifth cavity; 18. an air outlet; 19. a screw; 20. a valve plate assembly; 21. a second channel; 22. a third channel; 23. and a fourth cavity.
Detailed Description
The following description of the embodiments of the present invention will be made more apparent and fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by one of ordinary skill in the art without undue burden on the person of ordinary skill in the art based on embodiments of the present invention, are within the scope of the present invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "middle", "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 3 and fig. 4, a cylinder head for a totally enclosed refrigeration compressor comprises a cover body 1, screw holes 15 are respectively arranged at four corners of the cover body 1, an air inlet clamping wall 7 is arranged at the middle lower part of the cover body 1, a first cavity 9 is formed among the outer wall of the air inlet clamping wall 7, the arc-shaped outer wall of the screw holes 15 and the inner wall of the cover body 1, a first baffle 10 is arranged between the outer walls of a pair of screw holes on the right side of the cover body 1, a second cavity 11 is formed between the first baffle 10 and the inner wall of the cover body 1, and a first channel 12 for communicating the first cavity 9 and the second cavity 11 is arranged on the first baffle 10; a second baffle 13 is further arranged between the first baffle 10 and the inner side wall of the cover body 1, and a third cavity 14 is formed between the second baffle 13 and the screw hole 15; an annular gap channel 16 is arranged between a screw connected with a screw hole close to the third cavity 14 and the screw hole, a fifth cavity 17 is arranged on the back surface of the cover body 1 close to the screw hole, the fifth cavity 17 is communicated with the annular gap channel 16, and an air outlet 18 is further arranged on the fifth cavity 17.
This cylinder head structural design is reasonable compact, through the setting of baffle, can separate original a big cavity into a plurality of cavity that has the size to distinguish, and multistage amortization effect can be formed in the setting of a plurality of cavities, can reduce exhaust pulsation, noise reduction improves the competitiveness of compressor product. Meanwhile, the cylinder cover can be compatible with the existing cylinder seat and compressor, so that the variety of the cylinder cover is reduced, the universality of parts is improved, and the quantity of the parts and the management cost are reduced.
Through the first baffle 10 with the setting of second baffle 13 can be in the inner periphery of lid 1 forms three cavity, cooperates annular clearance passageway 16 with the setting of fifth cavity 17 can form the amortization chamber of 3-5 grades on the cylinder cap for the refrigerant can obtain abundant amortization at the exhaust in-process, and exhaust noise is less, has promoted the holistic exhaust performance of compressor, and user experience feel can be better.
The cylinder cover adopting the structure can reduce the arrangement of the exhaust silencing cavity on the cylinder seat, optimize the structure of the cylinder seat, and set the final air outlet below the cylinder cover, so that the refrigerant can go through a longer reciprocating path in the exhaust process, and the space of the connecting screw of the cylinder cover can be fully utilized.
The annular gap channel 16 formed at the joint between the screw 19 and the screw hole 15 can exhaust air by utilizing a tiny annular gap at the joint without affecting the screw connection, so that a separate air exhaust channel is not required.
Further, an air inlet channel 8 is connected to the inner side of the air inlet clamping wall 7, an air inlet 2 is arranged on the air inlet channel 8, and an air inlet silencing cavity is connected to the lower side of the air inlet channel 8.
The air inlet clamping wall 7 utilizes the heart-shaped inner wall structure, can be better clamped and connected with the air inlet channel 8, and forms an air inlet 2 facing the valve plate assembly and the cylinder seat at the air inlet, the air inlet silencing cavity sucks the air inlet silencing refrigerant into the air inlet channel, and the refrigerant can enter the cylinder in the cylinder seat from the air inlet to perform compression operation.
Further, the screw holes 15 each have a semi-arc outer wall, and the air inlet clamping wall 7 is arranged in a region between the pair of screw holes 15 below and bulges toward the middle of the cover body.
Further, the depth of the middle part of the first cavity 9 is greater than the depth of the periphery, so that a first cavity with larger volume can be formed.
Further, the volume of the second cavity 11 is smaller than the volume of the first cavity 9 and larger than the volume of the third cavity 14, and the depth of the second cavity 11 is also larger than the depth of the third cavity 14, so as to form a hierarchical and level noise reduction effect.
Further, the first channel 12 is disposed on the first baffle 10 near the second baffle 13, so as to avoid the protrusion above the second cavity.
Further, the axial dimension of the annular gap channel 16 is greater than the depth of the third cavity 14, so that the refrigerant in the third cavity 14 can be discharged into the fifth cavity 17.
Further, the fifth cavity 17 is an annular cavity, and is coaxially disposed with the screw hole near the fifth cavity 17, and the air outlet 18 is disposed below the fifth cavity 17.
Further, an exhaust system for a fully-enclosed refrigeration compressor further comprises a cylinder seat 4 matched with the cylinder cover and a valve plate assembly 20 arranged between the cylinder seat 4 and the cylinder cover, wherein a fourth cavity 23 is arranged on one surface of the cylinder seat 4 facing the valve plate assembly, a second channel 21 and a third channel 22 are arranged on the valve plate assembly 20, the second channel 21 is communicated with the second cavity 11 and the fourth cavity 23, and the third channel 22 is communicated with the fourth cavity 23 and the third cavity 14; the cylinder block 4 and the valve plate assembly 20 are also provided with annular clearance channels at the connecting screws.
The fourth cavity 23 is a blind hole formed on the cylinder block 4, and can directly form a silencing cavity after being matched with the valve plate assembly 20 and the cylinder cover. The valve plate assembly 20 at least comprises a valve plate, an air suction valve plate and an air discharge valve plate, wherein an air suction hole and an air discharge hole arranged above the valve plate assembly can be communicated with the air inlet and the air cylinder to perform air suction and discharge actions, and the air suction and discharge actions are matched with the air cylinder to complete the compression operation of the refrigerant.
The exhaust path of the exhaust system is: refrigerant is sucked into the air inlet 2 of the cylinder cover through the air inlet silencing cavity, is sucked into the cylinder in the cylinder seat 4 through the hole on the valve plate assembly 20, is compressed through the piston, is discharged into the first cavity 9 through the valve plate assembly 20, is discharged into the second cavity 11 through the first channel 12, is discharged into the fourth cavity 23 through the second channel 21 on the valve plate assembly 20, is discharged into the third cavity 14 through the third channel 22, is discharged into the fifth cavity 17 through the annular clearance channel 16 between the screw hole and the screw, is discharged out of the cylinder cover through the air outlet 18 on the fifth cavity 17, and is discharged into the exhaust coil to be discharged out of the compressor through the exhaust pipe.
Through above-mentioned exhaust system and exhaust route, can obviously prolong the removal route of refrigerant, make it can experience five at least cavitys, five-stage amortization, exhaust pulsation and vibration can reach to reduce by a wide margin, and the noise can obtain better control, and the operation noise of whole refrigeration compressor is lower, and the user experience of product is better.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The cylinder cover for the totally-enclosed refrigeration compressor comprises a cover body, screw holes are respectively formed in four corners of the cover body, an air inlet clamping wall is arranged at the middle lower part of the cover body, a first cavity is formed among the outer wall of the air inlet clamping wall, the outer wall of the screw hole and the inner wall of the cover body, and the cylinder cover is characterized in that a first baffle is arranged between the outer walls of a pair of screw holes on at least one side of the cover body, a second cavity is formed between the first baffle and the inner wall of the cover body, and a first channel for communicating the first cavity with the second cavity is formed in the first baffle; a second baffle is further arranged between the first baffle and the inner side wall of the cover body, and a third cavity is formed between the second baffle and the screw hole; an annular gap channel is arranged between a screw connected with a screw hole close to the third cavity and the screw hole, a fifth cavity is arranged on the back surface of the cover body close to the screw hole and communicated with the annular gap channel, and an air outlet is further arranged on the fifth cavity.
2. The cylinder head for a fully-enclosed refrigeration compressor as set forth in claim 1, wherein an intake passage is connected to an inner side of said intake clamping wall, an intake port is provided in said intake passage, and an intake silencing chamber is connected to a lower side of said intake passage.
3. The cylinder head for a fully-enclosed refrigeration compressor according to claim 1, wherein the screw holes each have a semi-arcuate outer wall, and the intake clamping wall is provided in a region between a pair of the screw holes below and bulges toward a middle portion of the cover.
4. The cylinder head for a fully hermetic refrigeration compressor according to claim 1, wherein the depth of the first chamber middle portion is greater than the depth of the periphery.
5. The cylinder head for a fully hermetic refrigeration compressor according to claim 1, wherein the volume of the second cavity is smaller than the volume of the first cavity and larger than the volume of the third cavity, and the depth of the second cavity is also larger than the depth of the third cavity.
6. The cylinder head for a fully enclosed refrigeration compressor as set forth in claim 1 wherein said first passage is disposed on said first baffle adjacent said second baffle.
7. The cylinder head for a fully hermetic refrigeration compressor according to claim 1, wherein an axial dimension of the annular clearance channel is greater than a depth of the third cavity.
8. The cylinder head for a fully-enclosed refrigeration compressor according to claim 1, wherein the fifth cavity is an annular cavity coaxially disposed with the screw hole near the fifth cavity, and the air outlet is provided below the fifth cavity.
9. An exhaust system having a cylinder head for a fully-enclosed refrigeration compressor according to any one of claims 1 to 8, further comprising a cylinder block for use with the cylinder head, and a valve plate assembly disposed between the cylinder block and the cylinder head, the cylinder block having a fourth cavity, the valve plate assembly having a second passage and a third passage, the second passage communicating the second cavity with the fourth cavity, the third passage communicating the fourth cavity with the third cavity; the cylinder block and the valve plate assembly are also provided with annular clearance channels at the connecting screws.
10. A method of exhausting a gas system having a cylinder head for a hermetic refrigeration compressor as set forth in claim 9, wherein refrigerant is drawn into an intake port of said cylinder head through an intake muffler chamber, drawn into a cylinder in said cylinder block through an aperture in a valve plate assembly, compressed by a piston, and then discharged into said first chamber through said valve plate assembly, discharged into said second chamber through said first passage, then discharged into said fourth chamber on said cylinder block through a second passage on said valve plate assembly, then discharged into said third chamber through said third passage, then discharged into said fifth chamber through said annular clearance passage between a screw hole and a screw, discharged out of said cylinder head through an outlet on a fifth chamber, and refrigerant enters an exhaust coil to exit the compressor through an exhaust pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211695099.2A CN116085238A (en) | 2022-12-28 | 2022-12-28 | Cylinder cover, exhaust system and exhaust method for totally-enclosed refrigeration compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211695099.2A CN116085238A (en) | 2022-12-28 | 2022-12-28 | Cylinder cover, exhaust system and exhaust method for totally-enclosed refrigeration compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116085238A true CN116085238A (en) | 2023-05-09 |
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ID=86209593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211695099.2A Pending CN116085238A (en) | 2022-12-28 | 2022-12-28 | Cylinder cover, exhaust system and exhaust method for totally-enclosed refrigeration compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116085238A (en) |
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2022
- 2022-12-28 CN CN202211695099.2A patent/CN116085238A/en active Pending
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