CN109372747B - A kind of compressor - Google Patents
A kind of compressor Download PDFInfo
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- CN109372747B CN109372747B CN201811320820.3A CN201811320820A CN109372747B CN 109372747 B CN109372747 B CN 109372747B CN 201811320820 A CN201811320820 A CN 201811320820A CN 109372747 B CN109372747 B CN 109372747B
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- cylinder
- flow passage
- communicated
- cooling flow
- air
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- 238000001816 cooling Methods 0.000 claims abstract description 80
- 238000005192 partition Methods 0.000 claims description 16
- 230000001502 supplementing effect Effects 0.000 claims description 8
- 238000005057 refrigeration Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003245 working effect 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
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/001—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids of similar working principle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/356—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
- F04C18/3562—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member the inner and outer member being in contact along one line or continuous surfaces substantially parallel to the axis of rotation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/04—Heating; Cooling; Heat insulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/12—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
- F04C29/122—Arrangements for supercharging the working space
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention provides a compressor, and relates to the technical field of refrigeration equipment. Comprising the following steps: the device comprises a shell, a first cylinder, a second cylinder and a flange, wherein the first cylinder, the second cylinder and the flange are arranged in the shell, a mixing cavity is formed in the flange, and an exhaust port of the first cylinder and an air suction port of the second cylinder are communicated with the mixing cavity; the first cylinder is provided with a first cooling flow passage, the air inlet end of the first cooling flow passage is communicated to the outside of the shell, and the air outlet end of the first cooling flow passage is communicated to the mixing cavity. According to the compressor provided by the invention, when the supplemented medium-pressure-stage gas flows through the first cooling flow passage, the first cylinder can be cooled, so that the temperature of the sliding cavity in the first cylinder is reduced, and the temperature of the medium-pressure-stage gas discharged by the first cylinder is reduced. The temperature of medium-pressure gas sucked by the second cylinder from the mixing cavity is reduced, so that the effects of reducing the suction density of the second cylinder and improving the energy efficiency of the second cylinder are achieved.
Description
Technical Field
The invention relates to the field of refrigeration equipment, in particular to a compressor.
Background
With the gradual rise of living standard, refrigerating equipment such as air conditioners and refrigerators are increasingly appearing in the lives of people. And the compressor is an essential and important component in refrigerating equipment such as air conditioners, refrigerators and the like. The existing double-stage enthalpy-increasing compressor consists of a low-pressure stage cylinder and a medium-pressure stage cylinder, and the working principle of the compressor in a refrigeration system is as follows: the low-pressure stage cylinder compresses the sucked low-pressure gas into medium-pressure gas, and then discharges the medium-pressure gas into the cavity of the lower flange, and the medium-pressure gas is mixed with medium-pressure gas which is supplemented into the cavity of the lower flange by other devices (such as a heat exchanger) in the refrigeration system. The mixed medium-pressure gas is sucked by the high-pressure stage cylinder and compressed into high-pressure gas, and then the high-pressure gas is discharged to the outside of the compressor. The compression process is completed once.
However, the temperature of the medium pressure gas compressed by the low pressure stage cylinder is higher, and when the temperature of the medium pressure gas sucked by the high pressure stage cylinder is higher, the suction density of the high pressure stage cylinder is reduced, so that the energy efficiency of the high pressure stage cylinder is reduced.
Disclosure of Invention
The invention provides a compressor, which aims to solve the problem that the exhaust temperature of a low-pressure stage cylinder in the existing double-stage enthalpy-increasing compressor is too high.
The invention is realized in the following way:
a compressor, comprising: the device comprises a shell, a first cylinder, a second cylinder and a flange, wherein the first cylinder, the second cylinder and the flange are arranged in the shell, a mixing cavity is formed in the flange, and an exhaust port of the first cylinder and an air suction port of the second cylinder are communicated with the mixing cavity;
the first cylinder is provided with a first cooling flow passage, the air inlet end of the first cooling flow passage is communicated to the outside of the shell, and the air outlet end of the first cooling flow passage is communicated to the mixing cavity.
Further, in a preferred embodiment of the present invention, a second cooling flow channel is provided on the second cylinder, an air inlet end of the second cooling flow channel is connected to the outside of the housing, and an air outlet end of the second cooling flow channel is connected to the mixing chamber.
Further, in a preferred embodiment of the present invention, the compressor further includes a partition plate, the partition plate is disposed between the first cylinder and the second cylinder, the partition plate is provided with an air-compensating hole, the air-compensating hole is communicated to the outside of the casing, and the air inlet end of the first cooling flow channel and the air inlet end of the second cooling flow channel are both communicated with the air-compensating hole.
Further, in a preferred embodiment of the present invention, the first cylinder is provided with a first flow channel, an air outlet end of the first cooling flow channel is communicated with the first flow channel, the flange is provided with a second flow channel, one end of the second flow channel is communicated with the first flow channel, and the other end of the second flow channel is communicated with the mixing cavity.
Further, in a preferred embodiment of the present invention, a third flow passage is provided on the second cylinder, an air outlet end of the second cooling flow passage is communicated with the third flow passage, a fourth flow passage is provided on the partition plate, one end of the fourth flow passage is communicated with the third flow passage, and the other end of the fourth flow passage is communicated with the first flow passage.
Further, in a preferred embodiment of the present invention, a fifth flow passage is provided on the flange, a sixth flow passage is provided on the first cylinder, a seventh flow passage is provided on the partition, the fifth flow passage, the sixth flow passage and the seventh flow passage are sequentially communicated, the fifth flow passage is communicated with the mixing chamber, and the seventh flow passage is communicated with the air suction port of the second cylinder.
Further, in a preferred embodiment of the present invention, the first cylinder includes a first housing and a first slide, and the first cooling flow channel is disposed on the first housing; the second cylinder comprises a second shell and a second sliding sheet, and the second cooling runner is arranged on the second shell.
Further, in a preferred embodiment of the present invention, the height of the first cylinder in the axial direction is H1, and the height of the first cooling flow passage in the axial direction is H1, where H1/2 is equal to or less than H1 x 2/3.
Further, in a preferred embodiment of the present invention, the width of the first cooling flow channel in the radial direction is W1, and 1mm is less than or equal to W1 and less than or equal to 2mm.
Further, in a preferred embodiment of the present invention, the height of the second cylinder in the axial direction is H2, and the height of the second cooling flow passage in the axial direction is H2, where H2/2 is less than or equal to H2 x 2/3.
Further, in a preferred embodiment of the present invention, the width of the second cooling flow channel in the radial direction is W2, and 1mm is less than or equal to W2 and less than or equal to 2mm.
The beneficial effects of the invention are as follows: the compressor obtained by the design is arranged in a refrigeration system, the first cylinder is used as a low-pressure stage cylinder, the air suction port of the first cylinder is connected with external low-pressure stage gas, and the air discharge port of the first cylinder is communicated with the mixing cavity in the flange. The second cylinder is used as a high-pressure stage cylinder, the air suction port of the second cylinder is communicated with the mixing cavity in the flange, and the air exhaust port of the second cylinder is communicated with the exhaust pipe on the shell. The air inlet end of the first cooling flow passage is communicated to the outside of the shell, the air outlet end of the first cooling flow passage is communicated to the mixing cavity, and other devices (such as a heat exchanger) in the refrigerating system are used for supplementing medium-pressure grade gas into the mixing cavity through the first cooling flow passage so as to achieve the effect of supplementing air and increasing enthalpy for the compressor. Because the first cooling flow passage is arranged on the first cylinder, and meanwhile, the temperature of the medium-pressure stage gas fed in by other devices in the refrigerating system is far lower than that of the medium-pressure stage gas discharged by the first cylinder, when the fed medium-pressure stage gas flows through the first cooling flow passage, the first cylinder can be cooled, so that the temperature of a sliding cavity in the first cylinder is reduced, and the temperature of the medium-pressure stage gas discharged by the first cylinder is reduced. The temperature of medium-pressure gas sucked by the second cylinder from the mixing cavity is reduced, so that the effects of reducing the suction density of the second cylinder and improving the energy efficiency of the second cylinder are achieved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of a compressor according to an embodiment of the present invention;
FIG. 2 is a schematic view showing a partial structure of a compressor according to an embodiment of the present invention;
FIG. 3 is a top view of a first cylinder in a compressor according to an embodiment of the present invention;
FIG. 4 is a top view of a second cylinder in a compressor according to an embodiment of the present invention;
FIG. 5 is a top view of a flange in a compressor according to an embodiment of the present invention;
fig. 6 is a top view of a separator plate in a compressor according to an embodiment of the present invention.
Icon: a housing 1; a first cylinder 2; a first cooling flow passage 21; a first flow passage 22; a sixth flow passage 23; a second cylinder 3; a second cooling flow path 31; a flange 4; a mixing chamber 41; a second flow passage 42; a fifth flow passage 43; a partition plate 5; an air supply hole 51; a fourth flow passage 52; seventh flow channel 53.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured 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 a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In embodiment 1, referring to fig. 1 to 6, the present embodiment provides a compressor, including: the shell 1 and set up in the inside first cylinder 2 of shell 1, second cylinder 3 and flange 4, have mixing chamber 41 in the flange 4, the gas vent of first cylinder 2 and the induction port of second cylinder 3 all communicate with mixing chamber 41, are equipped with the blast pipe on the shell 1, the gas vent of second cylinder 3 communicates with the blast pipe.
The first cylinder 2 is provided with a first cooling flow passage 21, the air inlet end of the first cooling flow passage 21 is communicated to the outside of the shell 1, and the air outlet end of the first cooling flow passage 21 is communicated to the mixing cavity 41.
The compressor provided in this embodiment is provided when it is disposed in a refrigeration system. The first cylinder 2 serves as a low-pressure stage cylinder, the intake port of which is connected to the external low-pressure stage gas, and the exhaust port of which communicates with the mixing chamber 41 in the flange 4. The second cylinder 3 serves as a high-pressure stage cylinder, the air suction port of which communicates with the mixing chamber 41 in the flange 4, and the exhaust port of which communicates with the exhaust pipe on the housing 1. The air inlet end of the first cooling flow passage 21 is communicated to the outside of the shell 1, the air outlet end is communicated to the mixing cavity 41, and other devices (such as a heat exchanger) in the refrigeration system are used for supplementing medium-pressure stage gas into the mixing cavity 41 through the first cooling flow passage 21 so as to achieve the effect of supplementing air and increasing enthalpy for the compressor. Because the first cooling flow passage 21 is arranged on the first cylinder 2, and meanwhile, the temperature of the medium-pressure stage gas fed in by other devices in the refrigerating system is far lower than that of the medium-pressure stage gas discharged by the first cylinder 2, when the fed medium-pressure stage gas flows through the first cooling flow passage 21, the first cylinder 2 can be cooled, so that the temperature of the sliding cavity in the first cylinder 2 is reduced, and the temperature of the medium-pressure stage gas discharged by the first cylinder 2 is reduced. The temperature of the medium-pressure gas sucked from the mixing chamber 41 by the second cylinder 3 is reduced to achieve the effects of reducing the suction density of the second cylinder 3 and improving the energy efficiency of the second cylinder 3.
Further, referring to fig. 1 and 2, in the present embodiment, a second cooling flow channel 31 is disposed on the second cylinder 3, an air inlet end of the second cooling flow channel 31 is connected to the outside of the housing 1, and an air outlet end of the second cooling flow channel 31 is connected to the mixing chamber 41. In this embodiment, by providing the second cooling flow channel 31 on the second cylinder 3, when the low-temperature medium-pressure stage gas fed by other devices in the refrigeration system flows through the second cooling flow channel 31 and enters the mixing cavity 41, the temperature of the sliding cavity in the second cylinder 3 can be reduced. Further reduces the suction density of the second cylinder 3 and improves the energy efficiency of the second cylinder 3. At the same time, the exhaust temperature of the second cylinder 3 can be lowered. The exhaust temperature of the second cylinder 3 is reduced, so that each component in the compressor can be operated in a lower-temperature environment, and the performance of the compressor is improved.
Further, referring to fig. 2, in the embodiment, the first cylinder 2 includes a first housing and a first sliding vane, and the first cooling flow channel 21 is disposed on the first housing; the second cylinder 3 includes a second housing and a second slide, and the second cooling flow channel 31 is disposed on the second housing. The first shell and the second shell are internally provided with sliding cavities, and the first sliding vane and the second sliding vane are respectively arranged in the corresponding sliding cavities.
Further, referring to fig. 1 and 2, in the present embodiment, the height of the first cylinder 2 in the axial direction is H1, and the height of the first cooling flow channel 21 in the axial direction is H1, where H1/2 is equal to or less than H1 is equal to or less than H1×2/3. The width of the first cooling flow passage 21 in the radial direction is W1, and W1 is more than or equal to 1mm and less than or equal to 2mm. The height of the second cylinder 3 in the axial direction is H2, the height of the second cooling flow channel 31 in the axial direction is H2, H2/2 is less than or equal to H2 is less than or equal to H2 x 2/3. The width of the second cooling flow passage 31 in the radial direction is W2, and W2 is more than or equal to 1mm and less than or equal to 2mm. In this embodiment, the dimensions of the first cooling flow channel 21 and the second cooling flow channel 31 are defined, so that the arrangement of the first cooling flow channel 21 and the second cooling flow channel 31 does not affect the structural strength of the first cylinder 2 and the second cylinder 3. Meanwhile, the cooling efficiency of the low-temperature medium-pressure stage gas when flowing through the first cooling flow passage 21 and the second cooling flow passage 31 is increased as much as possible while the working effects of the first cylinder 2 and the second cylinder 3 are ensured.
Further, referring to fig. 2, in the embodiment, the compressor further includes a partition 5, the partition 5 is disposed between the first cylinder 2 and the second cylinder 3, the partition 5 is provided with an air-compensating hole 51, the air-compensating hole 51 is communicated to the outside of the housing 1, and the air inlet end of the first cooling flow channel 21 and the air inlet end of the second cooling flow channel 31 are both communicated with the air-compensating hole 51. In this embodiment, through setting up the air make-up hole 51 that communicates first cooling runner 21 and second cooling runner 31 simultaneously on baffle 5, it can to set up only one air make-up pipeline that communicates to air make-up hole 51 on making casing 1, does not need to change the structure of casing 1 by a wide margin, reduction in manufacturing cost. The medium-pressure gas fed in from outside enters the air-filling hole 51 to be divided into two paths, and enters the first cooling flow passage 21 and the second cooling flow passage 31 respectively, and finally, the medium-pressure gas is converged into the mixing cavity 41 of the flange 4 and is mixed with the medium-pressure gas discharged by the first cylinder 2. It is also possible to cool both the first cylinder 2 and the second cylinder 3.
Further, referring to fig. 3 and 5, in the present embodiment, a first flow channel 22 is provided on the first cylinder 2, an air outlet end of the first cooling flow channel 21 is communicated with the first flow channel 22, a second flow channel 42 is provided on the flange 4, one end of the second flow channel 42 is communicated with the first flow channel 22, and the other end is communicated with the mixing chamber 41. After flowing through the first cooling flow passage 21, the air supplementing medium-pressure stage air sequentially flows through the first flow passage 22 and the second flow passage 42 and then enters the mixing cavity 41 in the flange 4 to be mixed with the medium-pressure stage air exhausted by the first air cylinder 2, so that the air suction density of the second air cylinder 3 is further reduced, and the energy efficiency effect of the second air cylinder 3 is improved.
Further, referring to fig. 4 and 6, in the present embodiment, a third flow channel is provided on the second cylinder 3, an air outlet end of the second cooling flow channel 31 is communicated with the third flow channel, a fourth flow channel 52 is provided on the partition 5, one end of the fourth flow channel 52 is communicated with the third flow channel, and the other end is communicated with the first flow channel 22. After flowing through the second cooling flow channel 31, the air supplementing medium-pressure air sequentially flows through the third flow channel, the fourth flow channel 52, the first flow channel 22 and the second flow channel 42 and then enters the mixing cavity 41 in the flange 4 to be mixed with the medium-pressure level air discharged by the first air cylinder 2, so that the air suction density of the second air cylinder 3 is further reduced, and the energy efficiency effect of the second air cylinder 3 is improved.
Further, referring to fig. 3-6, in the present embodiment, a fifth flow channel 43 is provided on the flange 4, a sixth flow channel 23 is provided on the first cylinder 2, a seventh flow channel 53 is provided on the partition 5, the fifth flow channel 43, the sixth flow channel 23 and the seventh flow channel 53 are sequentially communicated, and the fifth flow channel 43 is communicated with the mixing chamber 41, and the seventh flow channel 53 is communicated with the air suction port of the second cylinder 3. After the medium-pressure stage gas discharged from the first cooling flow passage 21, the second cooling flow passage 31 and the first cylinder 2 is mixed in the mixing cavity 41 in the flange 4, the medium-pressure stage gas flows through the fifth flow passage 43, the sixth flow passage 23 and the seventh flow passage 53 in sequence, and finally flows into the air suction port of the second cylinder 3 to be compressed.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, and various modifications and variations may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A compressor, comprising: the device comprises a shell, a first cylinder, a second cylinder and a flange, wherein the first cylinder, the second cylinder and the flange are arranged in the shell, a mixing cavity is formed in the flange, and an exhaust port of the first cylinder and an air suction port of the second cylinder are communicated with the mixing cavity;
the first cylinder is provided with a first cooling flow passage, the air inlet end of the first cooling flow passage is communicated with the outside of the shell, and the air outlet end of the first cooling flow passage is communicated with the mixing cavity;
the second cylinder is provided with a second cooling flow passage, the air inlet end of the second cooling flow passage is communicated with the outside of the shell, and the air outlet end of the second cooling flow passage is communicated with the mixing cavity;
the compressor further comprises a partition plate, the partition plate is arranged between the first cylinder and the second cylinder, an air supplementing hole is formed in the partition plate and communicated to the outside of the shell, and the air inlet end of the first cooling flow channel and the air inlet end of the second cooling flow channel are communicated with the air supplementing hole;
the first cylinder is provided with a first flow passage, the air outlet end of the first cooling flow passage is communicated with the first flow passage, the flange is provided with a second flow passage, one end of the second flow passage is communicated with the first flow passage, and the other end of the second flow passage is communicated with the mixing cavity;
a third flow passage is arranged on the second cylinder, the air outlet end of the second cooling flow passage is communicated with the third flow passage, a fourth flow passage is arranged on the partition plate, one end of the fourth flow passage is communicated with the third flow passage, and the other end of the fourth flow passage is communicated with the first flow passage;
the flange is provided with a fifth runner, the first cylinder is provided with a sixth runner, the partition plate is provided with a seventh runner, the fifth runner, the sixth runner and the seventh runner are sequentially communicated, the fifth runner is communicated with the mixing cavity, and the seventh runner is communicated with the air suction port of the second cylinder.
2. The compressor of claim 1, wherein the first cylinder includes a first housing and a first slide, the first cooling flow passage being disposed on the first housing; the second cylinder comprises a second shell and a second sliding sheet, and the second cooling runner is arranged on the second shell.
3. The compressor of claim 1, wherein the first cylinder has a height H1 in an axial direction, and the first cooling flow passage has a height H1 in an axial direction, H1/2 is equal to or less than H1 x 2/3.
4. The compressor of claim 1, wherein the width of the first cooling flow passage in the radial direction is W1, and W1 is 1mm or less and 2mm or less.
5. The compressor of claim 1, wherein the second cylinder has a height H2 in the axial direction, and the second cooling flow passage has a height H2 in the axial direction, H2/2 is equal to or less than H2 x 2/3.
6. The compressor of claim 1, wherein the second cooling flow passage has a radial width W2, and W2 is 1 mm-2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811320820.3A CN109372747B (en) | 2018-11-07 | 2018-11-07 | A kind of compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811320820.3A CN109372747B (en) | 2018-11-07 | 2018-11-07 | A kind of compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109372747A CN109372747A (en) | 2019-02-22 |
| CN109372747B true CN109372747B (en) | 2024-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811320820.3A Active CN109372747B (en) | 2018-11-07 | 2018-11-07 | A kind of compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109372747B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013027237A1 (en) * | 2011-08-22 | 2013-02-28 | 三菱電機株式会社 | Two-stage compressor, and heat pump device |
| CN106321436A (en) * | 2016-09-12 | 2017-01-11 | 珠海格力节能环保制冷技术研究中心有限公司 | Horizontal rotating two-stage enthalpy increasing compressor |
| CN209261821U (en) * | 2018-11-07 | 2019-08-16 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of compressor |
-
2018
- 2018-11-07 CN CN201811320820.3A patent/CN109372747B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013027237A1 (en) * | 2011-08-22 | 2013-02-28 | 三菱電機株式会社 | Two-stage compressor, and heat pump device |
| CN106321436A (en) * | 2016-09-12 | 2017-01-11 | 珠海格力节能环保制冷技术研究中心有限公司 | Horizontal rotating two-stage enthalpy increasing compressor |
| CN209261821U (en) * | 2018-11-07 | 2019-08-16 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of compressor |
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| CN109372747A (en) | 2019-02-22 |
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