CN104454531A - Compression assembly of compressor, compressor and air conditioner - Google Patents
Compression assembly of compressor, compressor and air conditioner Download PDFInfo
- Publication number
- CN104454531A CN104454531A CN201310432725.3A CN201310432725A CN104454531A CN 104454531 A CN104454531 A CN 104454531A CN 201310432725 A CN201310432725 A CN 201310432725A CN 104454531 A CN104454531 A CN 104454531A
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- Prior art keywords
- cylinder
- mixing chamber
- compressor
- compression assembly
- pressure cylinder
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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
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
A disclosed compression assembly of a compressor comprises a cylinder, rollers in the cylinder, a crankshaft (42) matched with the rollers, and a lower flange (30) below the cylinder; the invention comprises at least three cylinders; the crankshaft (42) possesses multiple eccentric parts matched with at least three rollers one by one; and the multiple cylinders are in successive communicated for forming a multi-stage compression mechanism. The cylinder number in the provided compression assembly is increased, when the compression assembly is at a low-temperature work condition, the air suction amount is guaranteed, also the suction-exhausting air pressure ratio of the compressor is subjected to at least three times of decomposition, and thus the working performance and the reliability of the compressor at the low-temperature work condition are improved. The invention also discloses the compressor possessing the above compression assembly and an air conditioner possessing the compressor.
Description
Technical field
The present invention relates to technical field of heat exchange devices, particularly relate to a kind of compression assembly of compressor.The invention still further relates to the compressor with above-mentioned compression assembly and the air conditioner with this compressor.
Background technique
Compressor passes through its compression assembly by the pressure increase of heat transferring medium, thus reaches the job requirement of heat-exchange system.Compression assembly mainly comprises bent axle, roller and cylinder, and cylinder communicates with the liquor separator of compressor, and the heat transferring medium flowed out from liquor separator enters in cylinder, and bent axle drives roller to roll in cylinder, can compress by heat exchanging medium.
In the compression assembly generally adopted at present, the quantity of cylinder is generally one or two, and under general operating mode, said structure is enough to meet consumers' demand.But, when compressor application is under worst cold case, following situation will be there is: because the specific volume of refrigeration agent reduces, the unit gettering quantity of compressor will reduce thereupon, and cause the exchange capability of heat of compressor to decline; After the unit gettering quantity of compressor reduces, the compression assembly of compressor inside and the lubrication effect of drive motor and cooling effect will be deteriorated; The suction and discharge pressure ratio of compressor is larger, causes the delivery temperature of compressor higher, due to structural limitations, by the larger leakage of appearance and frictional loss in compressor.Above-mentioned factor all by the service behaviour that causes compressor under worst cold case and reliability poor, cannot meet consumers' demand.
In sum, how to solve the service behaviour of compressor under worst cold case and the poor problem of reliability, become the technical barrier that those skilled in the art are urgently to be resolved hurrily.
Summary of the invention
The object of this invention is to provide a kind of compression assembly of compressor, this compression assembly can improve the service behaviour of compressor under worst cold case and reliability.Another object of the present invention is to provide a kind ofly to be had the compressor of above-mentioned compression assembly and has the air conditioner of this compressor.
To achieve these goals, the invention provides following technological scheme:
A kind of compression assembly of compressor, comprise cylinder, be positioned at the roller of described cylinder, with the bent axle of described rollers co-operate and the lower flange that is positioned at below described cylinder, described cylinder is at least three, described bent axle has multiple eccentric part coordinated one by one with at least three described rollers, multiple described cylinder is connected to form multistage compression mechanism successively.
Preferably, in above-mentioned compression assembly, described cylinder comprises a low pressure (LP) cylinder, an intermediate pressure cylinder and a high-pressure cylinder, and the exhaust cavity of described low pressure (LP) cylinder communicates with the air aspiration cavity of described intermediate pressure cylinder, and the exhaust cavity of described intermediate pressure cylinder communicates with the air aspiration cavity of described high-pressure cylinder.
Preferably, in above-mentioned compression assembly, described lower flange and cover plate form mixing chamber, the exhaust cavity of described low pressure (LP) cylinder and the air aspiration cavity of described intermediate pressure cylinder, or the air aspiration cavity of the exhaust cavity of described intermediate pressure cylinder and described high-pressure cylinder, be connected by described mixing chamber, described mixing chamber is connected with increasing enthalpy parts.
Preferably, in above-mentioned compression assembly, described lower flange is provided with demarcation strip, described lower flange, described demarcation strip and cover plate form the first mixing chamber and the second mixing chamber, the exhaust cavity of described low pressure (LP) cylinder is connected by described first mixing chamber with the air aspiration cavity of described intermediate pressure cylinder, the exhaust cavity of described intermediate pressure cylinder is connected by described second mixing chamber with the air aspiration cavity of described high-pressure cylinder, and described first mixing chamber and described second mixing chamber increase enthalpy parts and second respectively and increase enthalpy parts and be connected with first.
Preferably, in above-mentioned compression assembly, described low pressure (LP) cylinder is provided with the first increasing enthalpy mouth and second and increases enthalpy mouth, described first increases enthalpy parts is communicated with described first mixing chamber by described first increasing enthalpy mouth, and described second increases enthalpy parts is communicated with described second mixing chamber by described second increasing enthalpy mouth.
Preferably, in above-mentioned compression assembly, be provided with central diaphragm and lower clapboard between described low pressure (LP) cylinder and described intermediate pressure cylinder, described central diaphragm and described lower clapboard surround middle pressure exhaust passage, and the exhaust cavity of described intermediate pressure cylinder is connected with described second mixing chamber by described middle pressure exhaust passage.
Preferably, in above-mentioned compression assembly, the volume of described first mixing chamber is greater than the volume of described second mixing chamber.
A kind of compressor, comprise shell and be arranged at the compression assembly in described shell, described compression assembly is the compression assembly described in above-mentioned any one.
A kind of air conditioner, the compressor comprising heat exchanger and be connected with described heat exchanger, described compressor is above-mentioned compressor.
In technique scheme, the compression assembly of compressor provided by the invention comprises cylinder, is positioned at the roller of cylinder, with the bent axle of rollers co-operate and the lower flange that is positioned at below cylinder, above-mentioned cylinder is at least three, bent axle has multiple eccentric part coordinated one by one with at least three rollers, multiple cylinder is connected to form multistage compression mechanism successively.During the work of this compression assembly, the roller rolls in the eccentric part band dynamic air cylinder of bent axle, is formed and to calm the anger chamber, gas under the effect of bent axle and roller, successively through at least three cylinders, final formed needed for pressurized gas.
Known by foregoing description, compared to the content introduced in background technique, number of cylinders in compression assembly provided by the invention increases to some extent, when this compression assembly is in worst cold case, still gettering quantity can be ensured, simultaneously the suction and discharge pressure ratio of compressor will be decomposed through at least three times, and then improve the service behaviour of compressor under worst cold case and reliability.
Because above-mentioned compression assembly has above-mentioned technique effect, the compressor with above-mentioned compression assembly and the air conditioner with this compressor also should have corresponding technique effect.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, be briefly described to the accompanying drawing used required in the embodiment of the present invention or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of the compression assembly that Fig. 1 provides for the embodiment of the present invention;
The external structure schematic diagram of the compression assembly that Fig. 2 provides for the embodiment of the present invention;
The compression assembly structural representation in a first state that Fig. 3 provides for the embodiment of the present invention;
The compression assembly structural representation in a second state that Fig. 4 provides for the embodiment of the present invention;
The compression assembly structural representation in the third state that Fig. 5 provides for the embodiment of the present invention;
The structural representation of the lower flange that Fig. 6 provides for the embodiment of the present invention;
The structural representation of the low pressure (LP) cylinder that Fig. 7 provides for the embodiment of the present invention;
The structural representation of the central diaphragm that Fig. 8 provides for the embodiment of the present invention;
The structural representation of the lower clapboard that Fig. 9 provides for the embodiment of the present invention.
In upper Fig. 1-9:
Liquor separator 11, shell 12, upper flange 21, high-pressure cylinder 22, upper clapboard 23, intermediate pressure cylinder 24, central diaphragm 25, lower clapboard 26, low pressure (LP) cylinder 27, first increases enthalpy parts 28, second increases enthalpy parts 29, lower flange 30, cover plate 31, demarcation strip 32, motor 41, bent axle 42, low pressure air suction mouth 51, first mixing chamber 52, second mixing chamber 53, first increases enthalpy mouth 54, second increases enthalpy mouth 55, low pressure exhaust mouth 56, first increases enthalpy passage 57, middle pressure air intake passage 58, second increases enthalpy passage 59, middle pressure exhaust passage 60, high pressure air intake passage 61, middle pressure gas port 62.
Embodiment
Core of the present invention is to provide a kind of compression assembly of compressor, and this compression assembly can improve the service behaviour of compressor under worst cold case and reliability.Another core of the present invention is to provide a kind ofly to be had the compressor of above-mentioned compression assembly and has the air conditioner of this compressor.
In order to make those skilled in the art understand technological scheme provided by the invention better, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
As Figure 1-5, the compression assembly of compressor that the embodiment of the present invention provides comprises upper flange 21, lower flange 30, the motor 41 that is arranged at cylinder between upper flange 21 and lower flange 30, is positioned at the roller of cylinder, rotate with bent axle 42 and the driving crank 42 of rollers co-operate; Upper flange 21 and lower flange 30 are for installing cylinder and bent axle 42, and both are set on bent axle 42; The lumen segmentation of cylinder is air aspiration cavity and exhaust cavity, and air aspiration cavity is connected with the liquor separator 11 of compressor by low pressure air suction mouth 51; Roller sleeve is loaded on the eccentric part of bent axle 42, roller will be driven to produce eccentric rotary, and then change the air aspiration cavity of cylinder and the volume of exhaust cavity, and realize the object of pressurized gas after bent axle 42 is subject to the driving force of motor 41.
Key improvements part of the present invention is, above-mentioned cylinder is at least three, bent axle 42 then has multiple eccentric part coordinated one by one with at least three rollers, and multiple cylinder passes to formation multistage compression mechanism successively mutually, particularly, the air aspiration cavity of a cylinder is connected with the exhaust cavity of another cylinder, makes gas successively by air aspiration cavity and the exhaust cavity of each cylinder, and then obtains multistage compression.
During the work of this compression assembly, band dynamic crankshaft 42 rotates after being energized by motor 41, roller rolls in the eccentric part band dynamic air cylinder of bent axle 42, formation is calmed the anger chamber, make gas under the effect of bent axle 42 and roller, successively through at least three cylinders, the pressurized gas needed for final formation, these pressurized gas are discharged by the outlet pipe on the shell 12 of compressor.
Known by foregoing description, compared to the content introduced in background technique, number of cylinders in the compression assembly that the embodiment of the present invention provides increases to some extent, when this compression assembly is in worst cold case, still enough gettering quantities can be ensured, simultaneously the suction and discharge pressure ratio of compressor will be decomposed through at least three times, and then improve the service behaviour of compressor under worst cold case and reliability.
In further technological scheme, based on the consideration of compressor overall dimensions, the cylinder that the embodiment of the present invention provides is three, is respectively low pressure (LP) cylinder 27, intermediate pressure cylinder 24 and high-pressure cylinder 22, is provided with upper clapboard 23 between high-pressure cylinder 22 and intermediate pressure cylinder 24.The air aspiration cavity of low pressure (LP) cylinder 27 is connected with the liquor separator 11 of compressor, and the exhaust cavity of low pressure (LP) cylinder 27 communicates with the air aspiration cavity of intermediate pressure cylinder 24, and the exhaust cavity of intermediate pressure cylinder 24 communicates with the air aspiration cavity of high-pressure cylinder 22, and the exhaust cavity of high-pressure cylinder 22 communicates with outlet pipe.The quantity of cylinder is set to three, the service behaviour of compressor under worst cold case and reliability can be improved to a certain extent, the quantity of cylinder can be avoided again too much to cause the oversize problem of compressor.
On the basis of a upper scheme, in order to improve the service behaviour of compressor under worst cold case and reliability to a greater degree, the compression assembly that the embodiment of the present invention provides also can connect and increases enthalpy parts.Particularly, lower flange 30 and cover plate 31 form mixing chamber, the exhaust cavity of low pressure (LP) cylinder 27 is connected by this mixing chamber with the air aspiration cavity of intermediate pressure cylinder 24, or the exhaust cavity of intermediate pressure cylinder 24 is connected by this mixing chamber with the air aspiration cavity of high-pressure cylinder 22, and this mixing chamber is connected with increasing enthalpy parts.Under this structure, first the gas in the exhaust cavity of low pressure (LP) cylinder 27 be inhaled in mixing chamber, and the gas increased in enthalpy parts also will be inhaled in mixing chamber, and mixed gas enters intermediate pressure cylinder 24 again; Or first the gas in the exhaust cavity of intermediate pressure cylinder 24 be inhaled in mixing chamber, and the gas increased in enthalpy parts is also inhaled in this mixing chamber, mixed gas enters high-pressure cylinder 22 again.Obviously, this scheme obviously can increase the gettering quantity of intermediate pressure cylinder 24 or high-pressure cylinder 22 by increasing enthalpy parts, and then achieves the above object.
As shown in Figures 6 and 7, based on above-mentioned technical conceive, further in technological scheme, lower flange 30 can arrange demarcation strip 32, lower flange 30, demarcation strip 32 and cover plate 31 is made to form the first mixing chamber 52 and the second mixing chamber 53, the exhaust cavity of low pressure (LP) cylinder 27 is connected by the first mixing chamber 52 with the air aspiration cavity of intermediate pressure cylinder 24, the exhaust cavity of intermediate pressure cylinder 24 is connected by the second mixing chamber 53 with the air aspiration cavity of high-pressure cylinder 22, and the first mixing chamber 52 and the second mixing chamber 53 increase enthalpy parts 28 and second respectively and increase enthalpy parts 29 and be connected with first.Particularly, the exhaust cavity of low pressure (LP) cylinder 27 is connected with the first mixing chamber 52 by low pressure exhaust mouth 56; First increases enthalpy parts 28 is communicated with the first mixing chamber 52 by the first increasing enthalpy passage 57; First mixing chamber 52 is connected with the air aspiration cavity of intermediate pressure cylinder 24 by middle pressure air intake passage 58, and the exhaust cavity of intermediate pressure cylinder 24 is communicated with the second mixing chamber 53 by middle pressure gas port 62 and middle pressure exhaust passage 60; Second increases enthalpy parts 29 is connected with the second mixing chamber 53 by the second increasing enthalpy passage 59; Second mixing chamber 53 is connected by the air aspiration cavity of high pressure air intake passage 61 with high-pressure cylinder 22.
Above-mentioned compression assembly increases enthalpy parts 28 by first and the second increasing enthalpy parts 29 realize carrying out increasing enthalpy to intermediate pressure cylinder 24, intermediate pressure cylinder 24 to the gas of high-pressure cylinder 22 to low pressure (LP) cylinder 27, thus reach the object fully increasing gettering quantity, improve the service behaviour of compressor under worst cold case and reliability greatly.
In such scheme, first increasing enthalpy parts 28 and the second increasing enthalpy parts 29 can be directly connected in low pressure (LP) cylinder 27, intermediate pressure cylinder 24, on high-pressure cylinder 22 or miscellaneous part, for the ease of both settings, be convenient to gas flow simultaneously, reduce windage loss, the embodiment of the present invention arranges the first increasing enthalpy mouth 54 and second and increases enthalpy mouth 55 on low pressure (LP) cylinder 27, first increases enthalpy parts 28 is communicated with the first mixing chamber 52 by the first increasing enthalpy mouth 54, second increases enthalpy parts 29 is communicated with the second mixing chamber 53 by the second increasing enthalpy mouth 55, namely the first increasing enthalpy parts 28 and the second increasing enthalpy parts 29 are directly connected on low pressure (LP) cylinder 27.
Preferably in technological scheme, can arrange central diaphragm 25 and lower clapboard 26 between low pressure (LP) cylinder 27 and intermediate pressure cylinder 24, central diaphragm 25 and lower clapboard 26 surround middle pressure exhaust passage 60, and the exhaust cavity of intermediate pressure cylinder 24 is connected with the second mixing chamber 53 by middle pressure exhaust passage 60.Exhaust passage 60 is pressed in only offering on intermediate pressure cylinder 24, low pressure (LP) cylinder 27 and lower flange, the space of exhaust passage 60 is pressed in adopting the compression assembly of this kind of structure to increase, can arrange the position of middle pressure exhaust passage 60 flexibly, the gas be conducive in intermediate pressure cylinder 24 enters in the second mixing chamber 53 more quickly simultaneously.
In specific embodiment, the volume of the first mixing chamber 52 can be less than the volume of the second mixing chamber 53, also can equal the volume of the second mixing chamber 53.But in order to increase the compression efficiency of gas, the volume of preferred the first mixing chamber 52 of the embodiment of the present invention is greater than the volume of the second mixing chamber 53.
The compression assembly that the compressor that the embodiment of the present invention provides comprises liquor separator 11, shell 12 and is arranged in shell 12, this compression assembly described by above-mentioned either a program compression assembly.Because this compression assembly has above-mentioned technique effect, the compressor with this compression assembly also should have corresponding technique effect, repeats no more herein.
The compressor that the air conditioner that the embodiment of the present invention provides comprises heat exchanger and is connected with this heat exchanger, this compressor is above-mentioned compressor.Because above-mentioned compressor has above-mentioned technique effect, the air conditioner with this compressor also should have corresponding technique effect, no longer describes in detail herein.
Above the compression assembly of compressor provided by the present invention, compressor and air conditioner are described in detail.Apply specific case herein to set forth principle of the present invention and mode of execution, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also carry out some improvement and modification to the present invention, these improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (9)
1. the compression assembly of a compressor, comprise cylinder, be positioned at the roller of described cylinder, with the bent axle (42) of described rollers co-operate and the lower flange (30) that is positioned at below described cylinder, it is characterized in that, described cylinder is at least three, described bent axle (42) has multiple eccentric part coordinated one by one with at least three described rollers, and multiple described cylinder is connected to form multistage compression mechanism successively.
2. compression assembly according to claim 1, it is characterized in that, described cylinder comprises a low pressure (LP) cylinder (27), an intermediate pressure cylinder (24) and a high-pressure cylinder (22), the exhaust cavity of described low pressure (LP) cylinder (27) communicates with the air aspiration cavity of described intermediate pressure cylinder (24), and the exhaust cavity of described intermediate pressure cylinder (24) communicates with the air aspiration cavity of described high-pressure cylinder (22).
3. compression assembly according to claim 2, it is characterized in that, described lower flange (30) and cover plate (31) form mixing chamber, the exhaust cavity of described low pressure (LP) cylinder (27) and the air aspiration cavity of described intermediate pressure cylinder (24), or the air aspiration cavity of the exhaust cavity of described intermediate pressure cylinder (24) and described high-pressure cylinder (22), be connected by described mixing chamber, described mixing chamber is connected with increasing enthalpy parts.
4. compression assembly according to claim 2, it is characterized in that, described lower flange (30) is provided with demarcation strip (32), described lower flange (30), described demarcation strip (32) and cover plate (31) form the first mixing chamber (52) and the second mixing chamber (53), the exhaust cavity of described low pressure (LP) cylinder (27) is connected by described first mixing chamber (52) with the air aspiration cavity of described intermediate pressure cylinder (24), the exhaust cavity of described intermediate pressure cylinder (24) is connected by described second mixing chamber (53) with the air aspiration cavity of described high-pressure cylinder (22), described first mixing chamber (52) and described second mixing chamber (53) increase enthalpy parts (28) and second respectively and increase enthalpy parts (29) and be connected with first.
5. compression assembly according to claim 4, it is characterized in that, described low pressure (LP) cylinder (27) is provided with the first increasing enthalpy mouth (54) and second and increases enthalpy mouth (55), described first increases enthalpy parts (28) is communicated with described first mixing chamber (52) by described first increasing enthalpy mouth (54), and described second increases enthalpy parts (29) is communicated with described second mixing chamber (53) by described second increasing enthalpy mouth (55).
6. compression assembly according to claim 4, it is characterized in that, central diaphragm (25) and lower clapboard (26) is provided with between described low pressure (LP) cylinder (27) and described intermediate pressure cylinder (24), described central diaphragm (25) and described lower clapboard (26) surround middle pressure exhaust passage (60), and the exhaust cavity of described intermediate pressure cylinder (24) is connected with described second mixing chamber (53) by described middle pressure exhaust passage (60).
7. the compression assembly according to any one of claim 4-6, is characterized in that, the volume of described first mixing chamber (52) is greater than the volume of described second mixing chamber (53).
8. a compressor, the compression assembly comprising shell (12) and be arranged in described shell (12), is characterized in that, described compression assembly is the compression assembly such as according to any one of claim 1-7.
9. an air conditioner, the compressor comprising heat exchanger and be connected with described heat exchanger, is characterized in that, described compressor is compressor as claimed in claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310432725.3A CN104454531B (en) | 2013-09-22 | 2013-09-22 | The compression assembly of compressor, compressor and air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310432725.3A CN104454531B (en) | 2013-09-22 | 2013-09-22 | The compression assembly of compressor, compressor and air conditioner |
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| CN104454531A true CN104454531A (en) | 2015-03-25 |
| CN104454531B CN104454531B (en) | 2016-02-03 |
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| KR20180019187A (en) * | 2015-08-10 | 2018-02-23 | 그리 그린 리프리저레이션 테크놀로지 센터 컴퍼니 리미티드 오브 주하이 | Compressor and heat exchange system |
| JP2020118053A (en) * | 2019-01-21 | 2020-08-06 | 東芝キヤリア株式会社 | Rotary compressor and refrigeration cycle device |
| CN111832189A (en) * | 2020-07-24 | 2020-10-27 | 重庆通用工业(集团)有限责任公司 | Centrifugal vapor compressor model selection method |
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| KR20180019187A (en) * | 2015-08-10 | 2018-02-23 | 그리 그린 리프리저레이션 테크놀로지 센터 컴퍼니 리미티드 오브 주하이 | Compressor and heat exchange system |
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| CN111832189A (en) * | 2020-07-24 | 2020-10-27 | 重庆通用工业(集团)有限责任公司 | Centrifugal vapor compressor model selection method |
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| CN104454531B (en) | 2016-02-03 |
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