CN116538048B - Piston compressor and refrigeration plant - Google Patents
Piston compressor and refrigeration plant Download PDFInfo
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- CN116538048B CN116538048B CN202310785965.5A CN202310785965A CN116538048B CN 116538048 B CN116538048 B CN 116538048B CN 202310785965 A CN202310785965 A CN 202310785965A CN 116538048 B CN116538048 B CN 116538048B
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- exhaust silencing
- exhaust
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- cavity
- plate
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 11
- 230000030279 gene silencing Effects 0.000 claims abstract description 172
- 239000003921 oil Substances 0.000 claims abstract description 99
- 238000004891 communication Methods 0.000 claims abstract description 59
- 230000000903 blocking effect Effects 0.000 claims abstract description 44
- 239000010687 lubricating oil Substances 0.000 claims abstract description 44
- 239000000463 material Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 12
- 239000003507 refrigerant Substances 0.000 description 24
- 238000000926 separation method Methods 0.000 description 16
- 230000009467 reduction Effects 0.000 description 7
- 230000010349 pulsation Effects 0.000 description 5
- 239000000243 solution Substances 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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
- F04B37/00—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00
- F04B37/10—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use
- F04B37/12—Pumps having pertinent characteristics not provided for in, or of interest apart from, groups F04B25/00 - F04B35/00 for special use to obtain high pressure
-
- 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
-
- 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
- F04B39/02—Lubrication
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
The application provides a piston type compressor and refrigeration equipment, and belongs to the technical field of compressors. Wherein the piston compressor comprises: the exhaust silencing cavity assembly comprises a cylinder seat and an exhaust structure, the exhaust structure comprises a plurality of adjacent exhaust silencing cavities, and a communication structure is arranged between the two adjacent exhaust silencing cavities; the communication structure comprises a throttle plate, a plurality of throttle holes communicated with two adjacent exhaust silencing cavities are arranged on the throttle plate, and each throttle hole is correspondingly provided with an oil blocking part for blocking lubricating oil carried by gas flowing between the two adjacent exhaust silencing cavities; the compressor also comprises an air inlet pipe and an air outlet pipe, wherein the exhaust silencing cavity positioned at one side of the adjacent direction is communicated with the air inlet pipe, and the exhaust silencing cavity positioned at the other side of the adjacent direction is communicated with the air outlet pipe. According to the application, the throttle plate and the oil baffle component are arranged between two adjacent exhaust silencing cavities, so that the noise of the compressor can be reduced and the oil return effect of the compressor can be improved.
Description
Technical Field
The application relates to the technical field of compressors, in particular to a piston type compressor and refrigeration equipment.
Background
Several problems that occur primarily in the operation of piston compressors are high compressor cavity temperatures, high noise vibrations, wear, etc.
Since one of the characteristics of the piston compressor is that the compression ratio is large, the temperature of the refrigerant is high after the cylinder is compressed, the discharge pressure pulsation is large, and noise vibration is large.
Meanwhile, during the exhaust process, part of lubricating oil is carried along with the discharge of refrigerant gas and discharged out of the compressor, so that the oil supply of the movement is insufficient, and parts are worn.
Disclosure of Invention
In order to overcome the problems in the related art, the embodiment of the application provides a piston compressor and refrigeration equipment.
The first aspect of the embodiment of the application provides a piston compressor, which comprises an exhaust silencing cavity assembly, wherein the exhaust silencing cavity assembly comprises a cylinder seat and an exhaust structure, the exhaust structure comprises a plurality of exhaust silencing cavities arranged on the cylinder seat, the plurality of exhaust silencing cavities are adjacently arranged together, and a communication structure is arranged between the two adjacent exhaust silencing cavities;
the communication structure comprises a throttle plate, a plurality of throttle holes communicated with two adjacent exhaust silencing cavities are arranged on the throttle plate, and each throttle hole is correspondingly provided with an oil blocking part for blocking lubricating oil carried by gas flowing between the two adjacent exhaust silencing cavities;
the compressor also comprises an air inlet pipe and an air outlet pipe, wherein the exhaust silencing cavity positioned at one side of the adjacent direction is communicated with the air inlet pipe, and the exhaust silencing cavity positioned at the other side of the adjacent direction is communicated with the air outlet pipe.
In the technical scheme, the throttle plate comprises a first plate surface and a second plate surface which are oppositely arranged, the throttle hole penetrates through the first plate surface and the second plate surface of the throttle plate, an air inlet end is formed on the first plate surface, and an air outlet end is formed on the second plate surface;
the oil blocking component is arranged on the second plate surface, and the air outlet end of the throttling hole positioned on the second plate surface is at least partially blocked by the oil blocking component in the air outlet direction.
In the above technical scheme, the oil blocking component comprises an oil blocking cover arranged on the second plate surface, and the oil blocking cover is arranged on the periphery of the air outlet end of the throttling hole and forms an opening with the second plate surface.
In the technical scheme, the oil baffle cover comprises an arc-shaped baffle cover which is covered on the periphery of the air outlet end of the throttling hole;
the arc-shaped baffle cover is provided with a concave inner cover surface, and the inner cover surface is opposite to the air outlet end of the throttling hole.
In the technical scheme, the arc-shaped baffle cover is provided with a first end face serving as a connecting end and a second end face serving as a free end in the extending direction of the arc surface;
the first end face mask is arranged on the second plate surface, and the second end face extends towards one side far away from the second plate surface so as to form an opening with the second plate surface.
In the above technical solution, a plurality of adjacent exhaust silencing chambers are arranged along the horizontal direction of the cylinder block;
the communication structure also comprises a communication cavity arranged between the two adjacent exhaust silencing cavities, the communication cavity is used for communicating the two adjacent exhaust silencing cavities, and the throttle plate is arranged in the communication cavity;
the communication cavity comprises a communication cavity air inlet end and a communication cavity air outlet end, wherein the communication cavity air inlet end is opposite to the throttle hole of the throttle plate.
In the technical scheme, the communication cavity further comprises a communication cavity wall arranged between the air inlet end of the communication cavity and the air outlet end of the communication cavity, and the communication cavity wall comprises a first wall and a second wall which are opposite and arranged in parallel;
the throttle plate comprises a first end face and a second end face which are oppositely arranged, the first end face is perpendicularly connected with the first wall of the communication cavity, and the second end face is perpendicularly connected with the second wall of the communication cavity.
In the above technical scheme, the first wall and the second wall are provided with the throttle plate mounting groove, and the throttle plate is inserted into the throttle plate mounting groove.
In the above technical scheme, the bottom of the communicating cavity is also provided with oil guiding grooves, the oil guiding grooves are provided with two groups, and the two groups of oil guiding grooves are symmetrically arranged on two sides of the plate surface of the throttle plate and are used for collecting lubricating oil flowing down from the plate surface of the throttle plate and/or lubricating oil flowing down from the oil blocking part.
In the above technical solution, a plurality of adjacent exhaust silencing chambers are arranged along the vertical direction of the cylinder block;
the exhaust silencing cavity is a cylindrical cavity, and the air inlet direction of the air inlet pipe of the compressor is arranged along the tangential direction of the inner wall surface of the exhaust silencing cavity so that the exhaust of the compressor spirally rises along the inner wall surface of the exhaust silencing cavity.
In the above technical scheme, a plurality of protrusions are arranged on the inner wall surface of the exhaust silencing cavity, and the protrusions are arranged along the spiral rising track of the exhaust of the compressor in the exhaust silencing cavity.
In the above technical scheme, among the plurality of exhaust silencing cavities, the bottom of the exhaust silencing cavity communicated with the air inlet pipe is provided with the oil guide groove for collecting lubricating oil flowing down from the bulge and/or lubricating oil flowing down from the throttle plate surface and/or lubricating oil flowing down from the oil baffle component.
In the above technical scheme, the compressor is further provided with oil leakage holes communicated with the oil guide grooves, and the oil leakage holes are used for discharging lubricating oil in the oil guide grooves and guiding the lubricating oil to the bearing end of the compressor.
In the above technical solution, the exhaust silencing cavity includes a first exhaust silencing cavity and a second exhaust silencing cavity, which are adjacently arranged, and the first exhaust silencing cavity is a cylindrical cavity or a polyhedral cavity, and/or the second exhaust silencing cavity is a cylindrical cavity or a polyhedral cavity.
In the above technical scheme, be provided with exhaust amortization chamber casing mounting groove on the cylinder block, exhaust structure is including exhaust amortization chamber casing, and exhaust amortization chamber casing inside forms the exhaust amortization chamber, and exhaust amortization chamber casing interference fit installs in exhaust amortization chamber casing mounting groove.
In the technical scheme, the exhaust structure further comprises an exhaust silencing cavity upper cover plate, the exhaust silencing cavity upper cover plate is connected with an air outlet pipe and used for sealing the exhaust silencing cavity, a clamping groove is formed in a shell mounting groove of the exhaust silencing cavity, and the clamping groove is used for fixing the exhaust silencing cavity upper cover plate;
wherein the exhaust silencing cavity upper cover plate, the exhaust silencing cavity shell and the throttle plate are all made of plastic materials.
A second aspect of the embodiment of the present application provides a refrigeration apparatus, which includes the piston compressor described above, wherein the refrigeration apparatus is a refrigerator.
After the technical scheme is adopted, compared with the prior art, the application has the following beneficial effects:
1. according to the piston compressor, the plurality of silencing cavities are arranged, the throttle plate is arranged between the two adjacent silencing cavities, and the throttle hole and the oil blocking component are arranged on the throttle plate, so that exhaust pressure pulsation can be reduced through the throttle hole on the throttle plate, noise reduction of the compressor is facilitated, lubricating oil carried by gas flowing between the two adjacent exhaust silencing cavities can be blocked through the oil blocking component arranged at the throttle hole, oil-gas separation is achieved, meanwhile, the oil blocking component can further reduce the flow speed of refrigerating gas while achieving oil-gas separation, gas flow noise is further reduced, and noise reduction effect of the compressor is further improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
FIG. 1 is a schematic three-dimensional view of an exhaust muffler chamber assembly in accordance with an embodiment of the present application;
FIG. 2 is a schematic diagram of an exploded structure of the embodiment of FIG. 1;
FIG. 3 is a schematic cross-sectional view of the embodiment of FIG. 1;
FIG. 4 is an enlarged schematic view of the structure of embodiment A of FIG. 3;
FIG. 5 is a schematic three-dimensional view of a housing of a muffler chamber of a piston compressor according to an embodiment of the present application;
FIG. 6 is a schematic view of the structure of the piston compressor according to the present application when the housing of the exhaust silencing chamber is assembled with the upper cover of the exhaust silencing chamber;
FIG. 7 is a schematic view of the assembled housing and upper cover of the muffler chamber of the piston compressor according to the present application;
FIG. 8 is a schematic view of a front view of a throttle plate in an embodiment of a compressor in accordance with the present application;
FIG. 9 is a schematic side view of a throttle plate in an embodiment of the compressor of the present application;
FIG. 10 is a schematic view of a three-dimensional structure of a throttle plate in an embodiment of a compressor in accordance with the present application;
fig. 11 is a schematic view of the structure of the multiple exhaust silencing chambers arranged up and down in the embodiment of the application;
wherein: 1-a cylinder block; 11-exhaust silencing cavity housing mounting slots; 2-an exhaust silencing cavity; 3-throttle plate; 31-orifice; 32-a first panel; 33-a second panel; 4-an oil shield; 5-an air inlet pipe; 6-an air outlet pipe; 7-opening; 8-communicating the cavity; 81-a throttle plate mounting groove; 82-an oil guide groove; 83-oil leakage hole; 9-an upper cover plate of the exhaust silencing cavity;
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the application. Rather, they are merely examples of apparatus and methods consistent with aspects of the application as detailed in the accompanying claims.
At present, the existing piston compressor has large noise and vibration during exhaust, and simultaneously, the part of the refrigerant gas is entrained during the exhaust to lubricate the compressor to be exhausted, so that the oil supply of a compressor core is insufficient, and parts are worn. According to the piston compressor, the plurality of silencing cavities are arranged, the throttle plate is arranged between the two adjacent silencing cavities, and the throttle plate and the oil blocking component are arranged on the throttle plate, so that on one hand, exhaust pressure pulsation can be reduced through the throttle plate, noise reduction of the compressor is facilitated, on the other hand, lubricating oil carried by gas flowing between the two adjacent exhaust silencing cavities can be blocked through the oil blocking component arranged at the throttle hole, oil-gas separation is achieved, meanwhile, the oil blocking component can further reduce the flow speed of refrigerating gas while achieving oil-gas separation, gas flow noise is further reduced, and the noise reduction effect of the compressor is further improved.
The technical solutions of the present embodiment are described in detail below with reference to fig. 1 to 11, and the following implementation manners and embodiments may be combined with each other without conflict.
Example 1
As shown in fig. 1 to 4, a first aspect of the present embodiment proposes a piston compressor, which includes an exhaust silencing cavity assembly, the exhaust silencing cavity assembly includes a cylinder seat 1 and an exhaust structure, the exhaust structure includes a plurality of exhaust silencing cavities 2 disposed on the cylinder seat 1, the plurality of exhaust silencing cavities 2 are adjacently disposed together, and a communication structure is disposed between two adjacent exhaust silencing cavities 2;
the communication structure comprises a throttle plate 3, a plurality of throttle holes 31 which are communicated with two adjacent exhaust silencing cavities are arranged on the throttle plate 3, and an oil blocking part is correspondingly arranged on each throttle hole 31 and used for blocking lubricating oil carried by gas when flowing between the two adjacent exhaust silencing cavities 2;
the compressor also comprises an air inlet pipe 5 and an air outlet pipe 6, wherein the exhaust silencing cavity 2 positioned at one side of the adjacent direction is communicated with the air inlet pipe 5, and the exhaust silencing cavity 2 positioned at the other side of the adjacent direction is communicated with the air outlet pipe 6.
According to the piston compressor provided by the embodiment of the application, the plurality of silencing cavities are arranged, the throttle plate 3 is arranged between the two adjacent exhaust silencing cavities 2, and the throttle holes 31 and the oil blocking parts are arranged on the throttle plate 3, so that on one hand, exhaust pressure pulsation can be reduced through the plurality of throttle holes 31 on the throttle plate 3, noise reduction of the compressor is facilitated, on the other hand, lubricating oil entrained when gas flows between the two adjacent exhaust silencing cavities 2 can be blocked through the oil blocking parts arranged at the throttle holes 31, so that oil-gas separation is realized, meanwhile, the oil blocking parts can further reduce the flow speed of refrigerating gas while realizing oil-gas separation, thereby further reducing gas flow noise, and further improving the noise reduction effect of the compressor.
It should be noted that, in the embodiment of the present application, the plurality of orifices 31 on the throttle plate 3 may have various arrangements, and in the embodiment, the throttle plate 3 has a rectangular shape, and the exhaust holes have an arrangement of 3*3, but in some alternative embodiments, the arrangement is not limited thereto.
Further, as shown in fig. 4, the above-mentioned throttle plate 3 includes a first plate surface 32 and a second plate surface 33 disposed opposite to each other, wherein the throttle hole 31 penetrates the first plate surface 32 and the second plate surface 33 of the throttle plate, and an air inlet end is formed on the first plate surface 32, and an air outlet end is formed on the second plate surface 33;
the oil blocking component is disposed on the second plate surface 33, and the air outlet end of the orifice 31 located on the second plate surface 33 is at least partially blocked by the oil blocking component in the air outlet direction. Preferably, the throttle hole 31 is completely blocked by the oil blocking member in the air outlet direction thereof, so that the air flow rate can be maximally reduced, and the oil-gas separation effect can be maximally improved.
According to the embodiment of the application, the oil blocking component is arranged in the air outlet direction of the throttle hole 31, so that the refrigerating gas can directly collide with the oil blocking component when flowing out from the throttle hole 31, on one hand, the air flow rate is reduced, the pneumatic noise is reduced, and on the other hand, the lubricating oil carried on the refrigerating gas of the refrigerating gas can realize oil-gas separation when the refrigerating gas collides with the oil blocking component, so that the oil discharge rate of the compressor is reduced.
It should be noted that, in the embodiment of the present application, the throttle plate 3 itself also has an oil-gas separation function for the refrigerant gas, and when the refrigerant gas impinges on the first plate surface 32 of the throttle plate 3, a portion of the lubricating oil in the refrigerant gas is separated from the refrigerant gas and remains on the first plate surface 32.
It should be noted that, in the embodiment of the present application, the orifice 31 is blocked by the oil blocking member in the air outlet direction, and is not used for blocking the flow of the refrigerant gas discharged from the orifice 31, but is used for blocking the flow direction of the refrigerant gas.
Specifically, as shown in fig. 4, 8, 9 and 10, the above-mentioned oil blocking member includes an oil blocking cover 4 provided on the second plate surface 33, and the oil blocking cover 4 is provided on the outer periphery of the air outlet end of the orifice 31 and forms an opening 7 with the second plate surface 33.
When the refrigerant gas flowing out through the throttle hole 31 hits the oil shield 4, the lubricating oil entrained in the refrigerant gas is separated from the refrigerant gas, the separated refrigerant gas enters the next exhaust silencing cavity 2 along the opening 7, the separated lubricating oil is attached to the oil shield 4, and when the lubricating oil accumulated on the oil shield 4 reaches a certain weight, the lubricating oil attached to the oil shield 4 can be separated from the oil shield 4 under the action of gravity and the continuous impact of the refrigerant gas flowing out of the throttle hole 31, and the dripped lubricating oil can fall into the oil guide groove, so that the collection of the lubricating oil is realized.
Preferably, in the embodiment of the present application, the oil shield 4 disposed on the second plate surface 33 is integrally formed with the throttle plate 3.
As shown in fig. 4, 8, 9 and 10, in order to further improve the noise reduction and oil-gas separation effects on the refrigerant gas, in the embodiment of the present application, the oil baffle cover 4 is configured as an arc-shaped baffle cover that is covered on the outer periphery of the air outlet end of the orifice 31;
the arc-shaped baffle cover is provided with a concave inner cover surface, and when the arc-shaped baffle cover is arranged, the inner cover surface is opposite to the air outlet end of the throttle hole 31.
According to the embodiment of the application, the oil baffle cover 4 is arranged in an arc shape, so that on one hand, the refrigerant gas impinging on the inner cover surface of the oil baffle cover 4 can smoothly and excessively flow along the inner cover surface of the oil baffle cover 4, the pneumatic noise is reduced, and on the other hand, the separated lubricating oil attached to the inner cover surface of the oil baffle cover 4 can quickly flow into the oil guide groove for collecting the lubricating oil along the arc-shaped inner cover surface of the oil baffle cover 4, and the separated lubricating oil is prevented from being accumulated on the oil baffle cover 4 for too long time, so that the lubricating effect on parts such as bearings in a compressor is influenced.
Specifically, as shown in fig. 4 and 10, the arc-shaped shield has a first end surface as a connection end and a second end surface as a free end in the direction in which the arc surface extends;
the first end cover is provided on the second plate surface 33, and the second end surface extends to a side away from the second plate surface 33 to form an opening 7 with the second plate surface 33.
As shown in fig. 2 and 3, when the plurality of exhaust silencing chambers 2 are adjacently arranged in the horizontal direction of the cylinder block, the opening 7 at this time is provided toward the bottom of the cylinder block 1.
It should be further noted that, as shown in fig. 2, when the plurality of exhaust silencing cavities 2 are adjacently arranged along the horizontal direction of the cylinder block 1, the above-mentioned communication structure further includes a communication cavity 8 provided between two adjacent exhaust silencing cavities 2, the communication cavity 8 is used for communicating the two adjacent exhaust silencing cavities 2, and the throttle plate 3 is provided in the communication cavity 8;
wherein the communication chamber 8 comprises a communication chamber inlet end and a communication chamber outlet end, wherein the communication chamber inlet end is opposite to the throttle orifice 31 of the throttle plate 3.
In the embodiment of the application, the communication cavity 8 is arranged between the two adjacent exhaust silencing cavities 2, and the air inlet end of the communication cavity 8 is arranged opposite to the throttle hole 31 on the throttle plate 3, so that the refrigerating gas can be impacted on the throttle plate 3 in the direction perpendicular to the throttle plate 3, and the oil-gas separation effect on the refrigerating gas can be further improved.
As shown in fig. 5 and 6, the above-mentioned communication chamber 8 further includes a communication chamber wall disposed between the communication chamber inlet end and the communication chamber outlet end, the communication chamber wall including a first wall and a second wall disposed opposite and in parallel;
the throttle plate comprises a first end face and a second end face which are oppositely arranged, the first end face is perpendicularly connected with the first wall of the communication cavity, and the second end face is perpendicularly connected with the second wall of the communication cavity.
In the embodiment of the application, the wall surfaces of the communication cavity 8 are arranged in a relatively parallel manner, so that the refrigerating gas can be guided, and can enter the throttle hole 31 in a direction perpendicular to the throttle plate 3, so that the refrigerating gas vertically impacts on the inner cover surface of the oil baffle cover 4, and the oil distributing effect of the refrigerating gas is improved.
It should be noted that, in the embodiment of the present application, the diameter of the throttle hole 31 may be set to be different according to the displacement requirement of the compressor, and the outline of the throttle plate 3 may be set to be different, for example, rectangular, circular or polygonal, preferably, the shape of the throttle plate 3 is set to be rectangular in the embodiment of the present application, as shown in fig. 5, in order to install the throttle plate 3 conveniently, in the embodiment of the present application, the throttle plate installation grooves 81 are provided on the first wall and the second wall of the communication cavity 8, and when installing the throttle plate 3, the throttle plate 3 may be inserted into the throttle plate installation grooves 81.
As shown in fig. 5, when the plurality of exhaust silencing chambers 2 are arranged along the horizontal direction of the cylinder block 1, the bottom of the communication chamber 8 is further provided with two sets of oil guiding grooves 82, and the two sets of oil guiding grooves 82 are symmetrically arranged on two sides of the plate { first plate surface and the second plate surface } of the throttle plate 3 and are used for collecting lubricating oil flowing down from the plate surface of the throttle plate 3 and/or lubricating oil flowing down from the oil blocking component, and the collected lubricating oil can be guided to components requiring lubricating oil lubrication, such as bearings of the compressor, through oil leakage holes, so that the collected lubricating oil can be reused.
Example 2
The present embodiment differs from embodiment 1 in that, as shown in fig. 11, a plurality of adjacent exhaust silencing chambers 2 are arranged along the vertical direction of the cylinder block 1 in the embodiment of the present application;
wherein, when the plurality of exhaust silencing chambers 2 are arranged vertically, the exhaust silencing chambers 2 are arranged as cylindrical chambers, and at the same time, in this arrangement, the intake direction of the intake pipe 5 of the compressor is arranged along the tangential direction of the inner wall surface of the exhaust silencing chamber 2, so that the exhaust of the compressor rises spirally along the inner wall surface of the exhaust silencing chamber 2.
In the embodiment of the application, the exhaust silencing cavity 2 is arranged into a cylindrical cavity, and the air inlet direction of the air inlet pipe is arranged along the tangential direction of the exhaust silencing cavity 2, so that the exhaust of the compressor can spirally rise along the inner wall surface of the exhaust silencing cavity 2, thereby improving the oil-gas separation effect on the refrigerating gas.
In addition, in order to further improve the oil-gas separation effect of the refrigerant gas when the refrigerant gas rises in a spiral, a plurality of protrusions are provided on the inner wall surface of the discharge muffler chamber 2 in the embodiment of the present application, wherein the plurality of protrusions are arranged along the spiral rising track of the compressor discharge gas in the discharge muffler chamber 2.
Thus, when the refrigerant gas rises along the exhaust silencing cavity 2 in a spiral manner, the refrigerant gas can collide with the protrusions on the inner wall surface of the exhaust silencing cavity 2, and accordingly the oil separation effect on the refrigerant gas is further improved.
It should be noted that, when the plurality of exhaust silencing chambers 2 are arranged vertically, in the plurality of exhaust silencing chambers 2 arranged vertically, the oil guide groove 82 is provided at the bottom of the exhaust silencing chamber 2 communicating with the intake pipe 5 for collecting the lubricating oil flowing down from the boss and/or the lubricating oil flowing down from the plate surface of the throttle plate 3 and/or the lubricating oil flowing down from the oil blocking member. At this time, the lubricating oil falling from the oil deflector 4 can fall directly into the oil guide groove 82 provided at the bottom through the orifice 31 in the throttle plate 3.
It should be noted that, in both the horizontal arrangement in embodiment 1 and the vertical arrangement in embodiment 2, the plurality of exhaust silencing chambers 2 need to be provided with oil leakage holes 83 communicating with the oil guiding grooves 82, and the lubricating oil collected in the oil guiding grooves 82 is discharged through the oil leakage holes 83 and guided to the moving parts requiring lubrication, such as the bearing end of the compressor.
It should be noted that, as shown in fig. 11, when the plurality of exhaust silencing chambers 2 are arranged up and down, the orifice 31 on the throttle plate 3 may be arranged as follows: the plurality of orifices 31 on the throttle plate 3 are set to different apertures, wherein the aperture of the orifice 31 close to the cavity wall of the exhaust silencing cavity 2 is set to be larger, and the aperture of the orifice 31 far away from the cavity wall of the exhaust silencing cavity 2 is set to be smaller, so that the aperture of the orifice 31 close to the cavity wall of the exhaust silencing cavity 2 can be set to be relatively larger because the gas in the exhaust silencing cavity 2 is spirally lifted along the cavity wall of the exhaust silencing cavity 2, thereby improving the oil separation effect of the refrigerating gas, ensuring the flow rate of the refrigerating gas and avoiding the exhaust from being subjected to larger resistance.
Example 3
As shown in fig. 5 to fig. 7, two sets of exhaust silencing cavities are provided in the embodiment of the present application, and the two sets of exhaust silencing cavities include a first exhaust silencing cavity and a second exhaust silencing cavity that are adjacently arranged, where the first exhaust silencing cavity is a cylindrical cavity or a polyhedral cavity, and/or the second exhaust silencing cavity is a cylindrical cavity or a polyhedral cavity.
Preferably, the first exhaust silencing cavity and the second exhaust silencing cavity are cylindrical cavities, and pneumatic noise generated by gas in movement can be reduced by adopting the cylindrical cavities.
As shown in fig. 2, an exhaust silencing cavity housing mounting groove 11 is formed in a cylinder seat 1 in the embodiment of the present application, and the exhaust structure includes an exhaust silencing cavity housing, an exhaust silencing cavity 2 is formed inside the exhaust silencing cavity housing, and the exhaust silencing cavity housing is mounted in the exhaust silencing cavity housing mounting groove 11 in an interference fit manner.
According to the embodiment of the application, the exhaust silencing cavity and the cylinder seat 1 are arranged to be separated, so that the cylinder seat 1 and the exhaust silencing cavity 2 can be conveniently and independently ejected, and the manufacturing and the production are convenient.
As shown in fig. 1-3, the exhaust structure further comprises an exhaust silencing cavity upper cover plate 9, the exhaust silencing cavity upper cover plate 9 is connected with an air outlet pipe 6 for sealing the exhaust silencing cavity 2, a clamping groove is formed in an exhaust silencing cavity shell mounting groove 11 and used for fixing the exhaust silencing cavity upper cover plate 9;
wherein the upper cover plate 9 of the exhaust silencing cavity, the housing of the exhaust silencing cavity and the throttle plate 3 are all made of plastic materials, and the air outlet pipe 6 and the upper cover plate 9 of the exhaust silencing cavity are integrally injection molded by plastic.
In the embodiment of the application, the silencing cavity is divided into the exhaust silencing cavity shell and the exhaust silencing cavity upper cover plate 9, and two exhaust silencing cavities 2, namely a first exhaust silencing cavity and a second exhaust silencing cavity, are arranged in the exhaust silencing cavity shell. The shell and the upper cover of the exhaust silencing cavity, including the throttle plate, are all made of plastic materials, so that the thermodynamic performance of the compressor can be improved, and the refrigerating capacity can be increased.
Meanwhile, in order to avoid the influence of excessive exhaust pressure on the stability of an exhaust structure, in the embodiment of the application, a clamping groove is arranged on the exhaust silencing cavity shell mounting groove 11 and is used for fixing the exhaust silencing cavity upper cover plate 9.
The compressor mounting and operating remote in an embodiment of the present application is further described below with reference to fig. 1-10:
as shown in fig. 2, the cylinder block 1 is provided with an exhaust silencing cavity housing mounting groove 11 for mounting the exhaust silencing cavity 2, and after the exhaust silencing cavity 2 is mounted, an air inlet pipe 5 on the exhaust silencing cavity 2 is in interference fit connection with an exhaust channel on the cylinder head of the cylinder block 1. Firstly, refrigerant gas discharged from a compressor cylinder flows into the exhaust silencing cavity 2 through the air inlet pipe 5, the refrigerant gas flows in the exhaust silencing cavity 2 through the first exhaust silencing cavity and the second exhaust silencing cavity, finally passes through the air outlet pipe 6 arranged on the upper cover plate 9 of the exhaust silencing cavity, the air outlet pipe 6 is connected with a metal inner exhaust pipe of the shell, and finally is discharged out of the compressor through the inner exhaust pipe.
A throttle plate 3 is arranged between the first exhaust silencing cavity and the second exhaust silencing cavity in the exhaust silencing cavity 2, and the throttle plate 3 is arranged on a throttle plate mounting groove 81 arranged at the middle section of the exhaust silencing cavity 2. The main functions of the throttle plate 3 are two: firstly, reduce compressor exhaust noise, evenly distributed is the orifice on the throttle plate 3, can reduce exhaust pressure pulsation, is favorable to the compressor to fall the noise. The throttle plate 3 and the exhaust silencing cavity 2 are two independent parts, and the throttle plate 3 of the exhaust holes with different diameters can be changed according to the requirements of different displacement of the compressor; and secondly, oil-gas separation is carried out, so that the oil return rate is increased. A hemispherical baffle is arranged above each air hole of the throttle plate 3, and most of the lubricating oil is blocked and remains in the exhaust silencing cavity 2 when the refrigerant gas with the lubricating oil passes through the throttle plate 3. In the exhaust silencing cavity 2, two oil guide grooves 82 are formed in the bottom of the shell of the middle section, two oil leakage holes 83 are formed in the position, close to the shaft hole direction, of the shell, lubricating oil which is blocked and flows down flows into the oil guide grooves 82 along the throttle plate 3, and then flows out of the exhaust silencing cavity 2 through the oil leakage holes 83 to lubricate the bearing end of the compressor.
Example 4
In another aspect, an embodiment of the present application further provides a refrigeration apparatus, which includes the piston compressor mentioned in any one of the foregoing embodiments, and in particular, the refrigeration apparatus is a refrigerator.
The refrigerator provided by the embodiment of the application can reduce the running noise of the refrigerator when in operation after adopting the piston compressor with the structure, and can also improve the refrigerating capacity of the refrigerator and the service life of the refrigerator.
Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
It is to be understood that the application is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (16)
1. The piston compressor is characterized by comprising an exhaust silencing cavity assembly, wherein the exhaust silencing cavity assembly comprises a cylinder seat (1) and an exhaust structure, the exhaust structure comprises a plurality of exhaust silencing cavities (2) arranged on the cylinder seat (1), the exhaust silencing cavities (2) are adjacently arranged together, and a communication structure is arranged between the two adjacent exhaust silencing cavities (2);
the communication structure comprises a throttle plate (3), a plurality of throttle holes (31) for communicating two adjacent exhaust silencing cavities are formed in the throttle plate (3), and an oil blocking part is correspondingly arranged on each throttle hole (31) and used for blocking lubricating oil carried by gas when flowing between the two adjacent exhaust silencing cavities (2);
the compressor further comprises an air inlet pipe (5) and an air outlet pipe (6), wherein the exhaust silencing cavity (2) positioned on one side of the adjacent direction is communicated with the air inlet pipe (5), and the exhaust silencing cavity (2) positioned on the other side of the adjacent direction is communicated with the air outlet pipe (6).
2. The piston compressor as claimed in claim 1, wherein the throttle plate (3) includes a first plate surface (32) and a second plate surface (33) disposed opposite to each other, the throttle hole (31) penetrates the first plate surface (32) and the second plate surface (33) of the throttle plate, and an air inlet end is formed on the first plate surface (32) and an air outlet end is formed on the second plate surface (33);
the oil blocking component is arranged on the second plate surface (33), and the air outlet end of the throttle hole (31) positioned on the second plate surface (33) is at least partially blocked by the oil blocking component in the air outlet direction.
3. The piston compressor as claimed in claim 2, wherein the oil blocking member includes an oil blocking cover (4) provided on the second plate surface (33), the oil blocking cover (4) being provided on an outer periphery of an air outlet end of the orifice (31) and forming an opening (7) with the second plate surface (33).
4. A piston compressor according to claim 3, wherein the oil shield (4) comprises an arc shield covering the outer periphery of the air outlet end of the orifice (31);
the arc-shaped baffle cover is provided with a concave inner cover surface, and the inner cover surface is opposite to the air outlet end of the throttle hole (31).
5. The piston compressor as set forth in claim 4, wherein,
the arc-shaped baffle cover is provided with a first end face serving as a connecting end and a second end face serving as a free end in the extending direction of the arc surface;
the first end face mask is arranged on a second plate surface (33), and the second end face extends to the side far away from the second plate surface (33) so as to form the opening (7) with the second plate surface (33).
6. A piston compressor according to any one of claims 1-5, characterized in that a plurality of adjacent exhaust silencing chambers (2) are arranged in the horizontal direction of the cylinder block (1);
the communication structure further comprises a communication cavity (8) arranged between two adjacent exhaust silencing cavities (2), wherein the communication cavity (8) is used for communicating the two adjacent exhaust silencing cavities (2), and the throttle plate (3) is arranged in the communication cavity (8);
the communication cavity (8) comprises a communication cavity air inlet end and a communication cavity air outlet end, wherein the communication cavity air inlet end is opposite to an orifice (31) of the throttle plate (3).
7. The piston compressor of claim 6, wherein the communication chamber (8) further comprises a communication chamber wall disposed between the communication chamber inlet end and the communication chamber outlet end, the communication chamber wall comprising opposing and parallel disposed first and second walls;
the throttle plate comprises a first end face and a second end face which are oppositely arranged, the first end face is perpendicularly connected with the first wall of the communication cavity, and the second end face is perpendicularly connected with the second wall of the communication cavity.
8. The piston compressor as claimed in claim 7, wherein a throttle plate mounting groove (81) is provided in the first wall and the second wall, and the throttle plate (3) is inserted into the throttle plate mounting groove (81).
9. The piston compressor as claimed in claim 6, wherein the bottom of the communication chamber (8) is further provided with oil guiding grooves (82), the oil guiding grooves (82) are provided with two groups, and the two groups of oil guiding grooves (82) are symmetrically arranged on two sides of the plate surface of the throttle plate (3) and are used for collecting lubricating oil flowing down from the plate surface of the throttle plate (3) and/or lubricating oil flowing down from the oil blocking component.
10. -piston compressor according to any of the claims 1 to 5, characterised in that a plurality of adjacent exhaust-gas sound-deadening chambers (2) are arranged in the vertical direction of the cylinder block (1);
the exhaust silencing cavity (2) is a cylindrical cavity, and the air inlet direction of the compressor air inlet pipe (5) is arranged along the tangential direction of the inner wall surface of the exhaust silencing cavity (2) so that the exhaust of the compressor can spiral up along the inner wall surface of the exhaust silencing cavity (2).
11. The piston compressor according to claim 10, wherein among the plurality of exhaust silencing chambers (2), a bottom of the exhaust silencing chamber (2) communicating with the intake pipe (5) is provided with an oil guide groove (82) for collecting lubricating oil flowing down from a plate surface of the throttle plate (3) and/or lubricating oil flowing down from the oil blocking member.
12. The piston compressor according to claim 9 or 11, characterized in that the compressor is further provided with an oil leakage hole (83) communicating with the oil guiding groove (82), the oil leakage hole (83) being for discharging and guiding the lubricating oil in the oil guiding groove (82) to the bearing end of the compressor.
13. The piston compressor according to claim 1, characterized in that the exhaust silencing chamber (2) comprises a first exhaust silencing chamber and a second exhaust silencing chamber arranged adjacently, the first exhaust silencing chamber being a cylindrical chamber or a polyhedral chamber and/or the second exhaust silencing chamber being a cylindrical chamber or a polyhedral chamber.
14. The piston compressor as claimed in claim 1, wherein a housing mounting groove (11) for a muffler chamber is provided on the cylinder block (1), the exhaust structure comprises a housing for a muffler chamber, the housing for a muffler chamber is internally formed with the muffler chamber (2), and the housing for a muffler chamber is mounted in the housing mounting groove (11) for a muffler chamber in an interference fit.
15. The piston compressor of claim 14, wherein the exhaust structure further comprises an exhaust silencing cavity upper cover plate (9), the exhaust silencing cavity upper cover plate (9) is connected with the air outlet pipe (6), the exhaust silencing cavity upper cover plate (9) is used for sealing the exhaust silencing cavity (2), a clamping groove is arranged on an exhaust silencing cavity shell mounting groove (11), and the clamping groove is used for fixing the exhaust silencing cavity upper cover plate (9);
wherein the exhaust silencing cavity upper cover plate (9), the exhaust silencing cavity shell and the throttle plate (3) are all made of plastic materials.
16. A refrigeration appliance comprising a piston compressor as claimed in any one of claims 1 to 15, wherein the refrigeration appliance is a refrigerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310785965.5A CN116538048B (en) | 2023-06-30 | 2023-06-30 | Piston compressor and refrigeration plant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310785965.5A CN116538048B (en) | 2023-06-30 | 2023-06-30 | Piston compressor and refrigeration plant |
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| CN116538048A CN116538048A (en) | 2023-08-04 |
| CN116538048B true CN116538048B (en) | 2023-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202310785965.5A Active CN116538048B (en) | 2023-06-30 | 2023-06-30 | Piston compressor and refrigeration plant |
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| KR950006250A (en) * | 1993-08-06 | 1995-03-20 | 이헌조 | Steel Plate Silencer Structure of Hermetic Electric Compressor |
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| CN109441779A (en) * | 2018-12-11 | 2019-03-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Cylinder holder structure and compressor with it |
| CN109441777A (en) * | 2018-12-11 | 2019-03-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Cylinder holder structure and compressor with it |
| CN110332122A (en) * | 2019-06-17 | 2019-10-15 | 珠海凌达压缩机有限公司 | A kind of compressor and the electric appliance including the compressor |
| CN112459876A (en) * | 2020-12-17 | 2021-03-09 | 无锡亿利环保科技有限公司 | Diesel engine tail gas mixing device |
| CN116085234A (en) * | 2023-01-10 | 2023-05-09 | 珠海格力电器股份有限公司 | Piston compressor and refrigerator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100593847B1 (en) * | 2004-09-14 | 2006-06-28 | 삼성광주전자 주식회사 | Compressor with discharge muffler |
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR950006250A (en) * | 1993-08-06 | 1995-03-20 | 이헌조 | Steel Plate Silencer Structure of Hermetic Electric Compressor |
| CN102168665A (en) * | 2011-05-03 | 2011-08-31 | 芜湖欧宝机电有限公司 | Cylinder seat of piston type refrigerating compressor |
| CN205343908U (en) * | 2016-01-08 | 2016-06-29 | 浙江吉利汽车有限公司 | Press crown crankcase exhaust silencing device |
| CN109441779A (en) * | 2018-12-11 | 2019-03-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Cylinder holder structure and compressor with it |
| CN109441777A (en) * | 2018-12-11 | 2019-03-08 | 珠海格力节能环保制冷技术研究中心有限公司 | Cylinder holder structure and compressor with it |
| CN110332122A (en) * | 2019-06-17 | 2019-10-15 | 珠海凌达压缩机有限公司 | A kind of compressor and the electric appliance including the compressor |
| CN112459876A (en) * | 2020-12-17 | 2021-03-09 | 无锡亿利环保科技有限公司 | Diesel engine tail gas mixing device |
| CN116085234A (en) * | 2023-01-10 | 2023-05-09 | 珠海格力电器股份有限公司 | Piston compressor and refrigerator |
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| Publication number | Publication date |
|---|---|
| CN116538048A (en) | 2023-08-04 |
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