CN108224827B - Vortex parallel refrigerating unit - Google Patents
Vortex parallel refrigerating unit Download PDFInfo
- Publication number
- CN108224827B CN108224827B CN201810116985.2A CN201810116985A CN108224827B CN 108224827 B CN108224827 B CN 108224827B CN 201810116985 A CN201810116985 A CN 201810116985A CN 108224827 B CN108224827 B CN 108224827B
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- compressor
- interface
- stop valve
- air suction
- pipeline
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- 239000007788 liquid Substances 0.000 claims abstract description 27
- 238000000926 separation method Methods 0.000 claims abstract description 10
- 238000001035 drying Methods 0.000 claims description 8
- 238000005057 refrigeration Methods 0.000 claims description 7
- 238000004891 communication Methods 0.000 abstract description 2
- 239000003507 refrigerant Substances 0.000 description 11
- 238000003466 welding Methods 0.000 description 6
- 230000007613 environmental effect Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
- F25B1/10—Compression machines, plants or systems with non-reversible cycle with multi-stage compression
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/003—Filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses a vortex parallel refrigerating unit, which comprises an air suction filter, a gas-liquid separator, an air suction stop valve, a compressor, an air discharge stop valve, an oil separator, a condenser, a liquid storage, a dry filter, a liquid viewing mirror, an oil storage tank, an oil filter and an oil level controller, wherein the air suction stop valve is arranged on the air suction filter; the air suction stop valve and the air discharge stop valve are respectively provided with four interfaces, the air suction stop valve is respectively connected with an air separation outlet, an air suction inlet of the compressor and a low-pressure end of the high-low pressure switch, and the other air suction stop valve is used as a reserved interface; the exhaust stop valve is respectively connected with an exhaust outlet of the compressor, an oil inlet and a high-pressure end of the high-low pressure switch, and the other valve is used as a reserved interface; the normally-open auxiliary interfaces are added on the air suction stop valve and the air discharge stop valve, so that the direct communication between the compressor and the high-low pressure switch is always kept; the structure can avoid misoperation caused by the fact that the high-low pressure switch cannot sense the actual pressure of the suction and exhaust of the compressor due to the opening and closing of the valve, and improves the use safety.
Description
Technical Field
The invention relates to the technical field of refrigeration, in particular to a refrigeration cycle system of a vortex parallel unit.
Background
Scroll compressors are favored in the refrigeration industry because of their high energy efficiency, low noise, and low cost, and have been sold in a rapid increase in recent years. However, the horsepower of the scroll compressor is smaller, the refrigerating capacity of a single unit is limited, and the application of the scroll compressor to large and medium-sized refrigerating equipment is greatly limited.
Screw compressors and piston compressors are mainly used in large and medium-sized equipment at present. The screw compressor has large single-machine horsepower and high refrigerating capacity, and can meet the use requirement by a single screw compressor. However, the problem in application is that the energy efficiency ratio of the compressor is low when the compressor is operated under partial load. Those skilled in the art have proposed that the energy efficiency ratio is reduced by up to 20% after the screw compressor is unloaded by 25%; the single-machine horsepower of the piston compressor is lower than that of the screw compressor, and the same refrigerating capacity as that of the screw unit is realized through a plurality of parallel connection. When the load is reduced, the refrigerating capacity is regulated by turning off one or more piston compressors, and the piston compressors in operation are all in full-load operation, so that the energy efficiency of a single machine is not reduced, but the main problem of the piston compressors is that the noise is large. Along with the improvement of the living standard of people and the enhancement of environmental protection consciousness, the application field of the system is more and more limited, and tax collection standards for industrial noise are clearly specified in the environmental protection tax Law of the people's republic of China, which is started to be implemented in 1 month and 1 day of 2018.
Under the direction of industry development of energy conservation and environmental protection, a scroll compressor which has two advantages of high energy efficiency and low noise is attracting attention in the industry, and a refrigerating system of a scroll parallel unit is also generated. The vortex parallel unit well solves the problem of energy efficiency attenuation when the screw compressor is partially loaded, and has the advantages of lower noise and lower cost compared with the screw compressor and the piston compressor. On the basis of realizing energy conservation, the primary investment cost and the running cost can be obviously reduced.
However, the scroll compressor has disadvantages in that it is not as reliable as the screw and piston compressors, and the existing scroll compressor is mainly of a full-closed type, and the compressor needs to be replaced once a fault occurs. In order to reduce the risk of leakage, the suction and discharge ports of most scroll compressors are welded, which results in a significant amount of refrigerant wastage once the compressor is replaced. In order to improve the system, a stop valve is arranged on the air suction and exhaust pipeline of the compressor, so that the waste of refrigerant can be reduced when the compressor is replaced, but a welding mode is adopted between the compressor and the connecting pipeline, the connecting pipeline is not replaced after the compressor is replaced, the connection with the replaced compressor is secondary welding, welding slag residues are unavoidable, and the welding strength is reduced; when the compressor is replaced, the connecting pipeline is also required to be bent under a large force, so that the inherent vibration number of the pipeline is changed, resonance phenomenon is easy to occur, noise is increased, and the reliability of the vortex parallel unit and the service life of the compressor are greatly shortened.
Disclosure of Invention
Aiming at the technical problems, the invention provides the vortex parallel refrigerating unit which is provided with the flange connection multi-interface stop valve at the air suction and exhaust ports of the compressor, ensures the use safety, reduces the field welding work, is convenient to install, maintain and reform, and reduces the refrigerant loss.
In order to achieve the above purpose, the following technical scheme is adopted:
a scroll parallel refrigeration unit comprising: the device comprises an air suction filter, a gas-liquid separator, an air suction stop valve, a compressor, an air discharge stop valve, an oil separator, a condenser, a liquid storage, a drying filter and a liquid viewing mirror;
one path of an output pipeline of the oil separator is connected with the oil storage tank, and the other path of the output pipeline enters the liquid storage tank after being condensed by the condenser;
the output pipeline of the liquid reservoir is connected with the drying filter;
a liquid-viewing mirror is arranged on the output pipeline of the drying filter;
the output pipeline of the air suction filter is connected with the gas-liquid separator;
the output pipeline of the oil storage tank is connected with the input pipeline of the compressor through an oil filter;
wherein, the input pipeline of the compressor is provided with an air suction stop valve, and the output pipeline of the compressor is provided with an air discharge stop valve;
the air suction stop valve and the air discharge stop valve are respectively provided with 4 interfaces;
the air suction shutoff valve includes: the device comprises an air-separating connecting pipeline interface, a compressor air suction connecting interface, a low-pressure normally-open auxiliary interface and an openable auxiliary interface I;
the exhaust shutoff valve includes: an exhaust connection interface, an oil connection pipeline interface, a high-pressure normally-open auxiliary interface and an openable auxiliary interface II of the compressor;
a high-low pressure switch is arranged between the low-pressure normally-on auxiliary interface of the air suction stop valve and the high-pressure normally-on auxiliary interface of the air exhaust stop valve through a connecting pipeline;
the oil content connecting pipeline interface is connected with the oil separator through a pipeline; the compressor exhaust connection interface is connected with the compressor exhaust port;
when the exhaust stop valve is in an open state, the exhaust connection interface of the compressor, the oil connection pipeline interface and the high-pressure normally-open auxiliary interface are communicated, and the openable auxiliary interface II is in a closed state; when the four interfaces are in an intermediate state of opening and closing, all the four interfaces are communicated; when the compressor is in a closed state, the exhaust connection interface of the compressor, the high-pressure normally-open auxiliary interface, the openable auxiliary interface II is communicated, and the oil connection pipeline interface is closed;
wherein, the gas-separating connecting pipeline interface is connected with the gas-liquid separator; the air suction connection interface of the compressor is connected with the air suction port of the compressor;
when the air suction stop valve is in an open state, the air suction connection interface of the compressor, the air separation connection pipeline interface and the low-pressure normally-open auxiliary interface are communicated, and the openable auxiliary interface I is in a closed state; when the four interfaces are in an intermediate state of opening and closing, all the four interfaces are communicated; when the compressor is in a closed state, the air suction connection interface of the compressor, the low-pressure normally-open auxiliary interface, the openable auxiliary interface I is communicated, and the air separation connection pipeline interface is closed;
the number of compressors is 2 or more (more than 2) in parallel.
Further, the compressor is in flange connection with the compressor suction connection interface of the suction stop valve and the compressor discharge connection interface of the discharge stop valve.
Compared with the prior art, the invention adopting the technical scheme has the following characteristics:
1. by arranging the stop valve connected with the flange at the air suction and exhaust port of the compressor, the refrigerant loss is reduced to the maximum extent, and the welding work on site is reduced, so that the replacement of the compressor is low in cost and simple, convenient and easy.
2. The safety accident caused by improper operation and use of clients is avoided, and the use safety is improved. In the engineering field, the compressor is easy to forget to open the stop valve after being replaced and vacuumized, and then the compressor is operated, if the pressure protection device cannot be directly communicated with the high-pressure end, abnormal high pressure of the compressor can be caused, and explosion can occur in severe cases. The scheme directly connects the high-low pressure switch to the normally-open interface of the exhaust stop valve, and the communication between the compressor and the high-low pressure protection device is always kept.
3. And a closable auxiliary interface is reserved on the suction and exhaust stop valve respectively for vacuumizing and refrigerant filling when the fault compressor is replaced, so that the installation, maintenance and transformation are convenient.
The foregoing description is only an overview of the present invention, and is intended to be implemented in accordance with the teachings of the present invention, as well as the preferred embodiments thereof, together with the following detailed description of the invention, given by way of illustration only, together with the accompanying drawings.
Drawings
The invention has 2 drawings, wherein:
fig. 1 is a schematic diagram of a system of the present invention.
Fig. 2 is a diagram showing an example of connection between a compressor and a suction/discharge cut-off valve according to the present invention.
In the figure: 1. the device comprises an air suction stop valve 1a, a compressor air suction connection interface, a gas division connection pipeline interface, a 1c, an openable auxiliary interface I, a 1d, a low-pressure normally-open auxiliary interface, a 2, a compressor, a 3, an air discharge stop valve, a 3a, a compressor air discharge connection interface, a 3b, an oil content connection pipeline interface, a 3c, an openable auxiliary interface II, a 3d, a high-pressure normally-open auxiliary interface, a 4, a high-low pressure switch, a 5, an oil separator, a 6, a condenser, a 7, a liquid storage, an 8, a drying filter, a 9, a liquid viewing mirror, a 10, an air suction filter, a 11, a gas-liquid separator, a 12, an oil storage tank, a 13, an oil filter, a 14, an oil level controller, a 15, a three-way air suction stop valve, a 16 and a three-way air discharge stop valve.
Detailed Description
A scroll parallel refrigeration unit as shown in fig. 1 and 2, comprising: an air suction filter 10, a gas-liquid separator 11, an air suction stop valve 1, a compressor 2, an air discharge stop valve 3, an oil separator 5, a condenser 6, a liquid storage 7, a dry filter 8 and a liquid viewing mirror 9;
one path of the output pipeline of the oil separator 5 is connected with an oil storage tank 12, and the other path of the output pipeline enters a liquid storage tank 7 after being condensed by a condenser 6;
the output pipeline of the liquid reservoir 7 is connected with the drying filter 8;
a liquid-viewing mirror 9 is arranged on the output pipeline of the drying filter 8;
the output pipeline of the suction filter 10 is connected with the gas-liquid separator 11;
the output pipeline of the oil storage tank 12 is connected with the input pipeline of the compressor 2 through an oil filter 13;
wherein, the input pipeline of the compressor 2 is provided with an air suction stop valve 1, and the output pipeline of the compressor 2 is provided with an air discharge stop valve 3;
the air suction stop valve 1 and the air discharge stop valve 3 are respectively provided with 4 interfaces;
the intake shutoff valve 1 includes: a gas-separating connecting pipeline interface 1b, a compressor air suction connecting interface 1a, a low-pressure normally-open auxiliary interface 1d and an openable auxiliary interface I1 c;
the exhaust shutoff valve 3 includes: a compressor exhaust connection port 3a, an oil connection pipeline port 3b, a high-pressure normally-open auxiliary port 3d and an openable auxiliary port II 3c;
a high-low pressure switch 4 is arranged on the connecting pipeline between the low-pressure normally-open auxiliary interface 1d of the air suction stop valve 1 and the high-pressure normally-open auxiliary interface 3d of the air exhaust stop valve 3;
wherein the oil content connecting pipeline interface 3b is connected with the oil separator 5 through a pipeline; the compressor exhaust connection interface 3a is connected with an exhaust port of the compressor 2;
when the exhaust stop valve 3 is in an open state, the compressor exhaust connection port 3a, the oil content connection pipeline port 3b and the high-pressure normally-open auxiliary port 3d are communicated, and the openable auxiliary port II 3c is in a closed state; when the four interfaces are in an intermediate state of opening and closing, all the four interfaces are communicated; when the compressor is in a closed state, the exhaust connection interface 3a of the compressor, the high-pressure normal-open auxiliary interface 3d and the openable auxiliary interface II 3c are communicated, and the oil connection pipeline interface 3b is closed;
wherein the gas-separating connecting pipeline interface 1b is connected with the gas-liquid separator 11; the compressor suction connection interface 1a is connected with a suction port of the compressor 2;
when the air suction stop valve 1 is in an open state, the air suction connection interface 1a, the air separation connection pipeline interface 1b and the low-pressure normally-open auxiliary interface 1d of the compressor are communicated, and the openable auxiliary interface I1 c is in a closed state; when the four interfaces are in an intermediate state of opening and closing, all the four interfaces are communicated; when the compressor is in a closed state, the air suction connection interface 1a of the compressor, the low-pressure normal-open auxiliary interface 1d and the openable auxiliary interface I1 c are communicated, and the air separation connection pipeline interface 1b is closed;
the number of compressors 2 is 2 or more (i.e., 2 or more) in parallel.
Further, the compressor 2 is flange-connected to the compressor suction connection port 1a of the suction cutoff valve 1 and the compressor discharge connection port 3a of the discharge cutoff valve 2.
By adopting the technical scheme, in the normal running process of the vortex parallel unit, the air suction stop valve 1 and the air discharge stop valve are in an open state; when the compressor fails, the machine unit is shut down and is powered off, valve rods of the air suction stop valve 1 and the air discharge stop valve are regulated to be in a closed state, flanges are detached at the moment, the failed compressor 2 is replaced, in the state, the air separation connecting pipeline interface 1b of the air suction stop valve 1 and the oil separation connecting pipeline interface 3b of the air discharge stop valve 3 are in the closed state, refrigerant in the system cannot be discharged due to the detachment of the compressor, only residual refrigerant and little refrigerant in the compressor are lost, and the loss of the refrigerant is greatly reduced; after the compressor is replaced, the openable auxiliary interface I1 c of the air suction stop valve 1 and the openable auxiliary interface II 3c of the air exhaust stop valve 3 can be connected with a vacuum pumping device to perform vacuum pumping operation on the replaced compressor from the high pressure side and the low pressure side of the compressor 2, and if the refrigerant leaks due to various reasons, the refrigerant can be filled through the openable auxiliary interface 1c; after the compressor is replaced, the air suction stop valve 1 and the air discharge stop valve 3 are adjusted to be in an open state, the power is turned on, the debugging is carried out, and the unit is restored to normal operation. If the air suction stop valve 1 is forgotten to be opened after the compressor is replaced, at the moment, the air suction connection interface 1a of the compressor and the low-pressure normally-open auxiliary interface 1d are communicated, the auxiliary opening and closing interface I1 c is communicated, the compressor 2 is not communicated with the air separation connection pipeline, the high-low pressure switch 4 can generate low-pressure alarm stop after the power-on operation, and the alarm is released after the air suction stop valve 1 is opened; if the exhaust stop valve 3 is forgotten to be opened after the compressor is replaced, at the moment, the air suction connection interface 3a of the compressor, the high-pressure normally-open auxiliary interface 3d and the open-close auxiliary interface II 3c are communicated, the compressor 2 is not communicated with the oil content connection pipeline, the high-pressure alarm stop can be generated by the high-low pressure switch 4 after the power-on operation, and the alarm is released after the exhaust stop valve is opened.
The present invention is not limited to the above-mentioned embodiments, but is not limited to the above-mentioned embodiments, and any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical matter of the present invention will fall within the scope of the technical matter of the present invention, as long as the technical matter of the present invention can be utilized to make a few changes or modifications equivalent to the equivalent embodiments without departing from the technical scope of the present invention.
Claims (2)
1. A scroll parallel refrigeration unit comprising: an air suction filter (10), a gas-liquid separator (11), an air suction stop valve (1), a compressor (2), an air discharge stop valve (3), an oil separator (5), a condenser (6), a liquid receiver (7), a dry filter (8) and a liquid viewing mirror (9);
one path of an output pipeline of the oil separator (5) is connected with an oil storage tank (12), and the other path of the output pipeline enters a liquid storage tank (7) after being condensed by a condenser (6);
the output pipeline of the liquid receiver (7) is connected with a drying filter (8);
a liquid-viewing mirror (9) is arranged on an output pipeline of the drying filter (8);
the output pipeline of the air suction filter (10) is connected with the gas-liquid separator (11);
the output pipeline of the oil storage tank (12) is connected with the input pipeline of the compressor (2) through an oil filter (13);
wherein, the input pipeline of the compressor (2) is provided with an air suction stop valve (1), and the output pipeline of the compressor (2) is provided with an air discharge stop valve (3);
the air suction stop valve (1) and the air discharge stop valve (3) are respectively provided with 4 interfaces;
the intake stop valve (1) comprises: a gas-separating connecting pipeline interface (1 b), a compressor air suction connecting interface (1 a), a low-pressure normally-open auxiliary interface (1 d) and an openable auxiliary interface I (1 c);
the exhaust shutoff valve (3) includes: a compressor exhaust connection interface (3 a), an oil content connection pipeline interface (3 b), a high-pressure normal-open auxiliary interface (3 d) and an openable auxiliary interface II (3 c);
a high-low pressure switch (4) is arranged on a connecting pipeline between the low-pressure normally-open auxiliary interface (1 d) of the air suction stop valve (1) and the high-pressure normally-open auxiliary interface (3 d) of the air exhaust stop valve (3);
wherein the oil content connecting pipeline interface (3 b) is connected with the oil separator (5) through a pipeline; the compressor exhaust connection interface (3 a) is connected with an exhaust port of the compressor (2);
when the exhaust stop valve (3) is in an open state, the compressor exhaust connection interface (3 a), the oil content connection pipeline interface (3 b) and the high-pressure normal-open auxiliary interface (3 d) are communicated, and the openable auxiliary interface II (3 c) is in a closed state; when the four interfaces are in an intermediate state of opening and closing, all the four interfaces are communicated; when the compressor is in a closed state, the exhaust connection interface (3 a) of the compressor, the high-pressure normal-open auxiliary interface (3 d) and the openable auxiliary interface II (3 c) are communicated, and the oil connection pipeline interface (3 b) is closed;
wherein the gas-separating connecting pipeline interface (1 b) is connected with the gas-liquid separator (11); the compressor suction connection interface (1 a) is connected with a suction port of the compressor (2);
when the air suction stop valve (1) is in an open state, the air suction connection interface (1 a) of the compressor, the air separation connection pipeline interface (1 b) and the low-pressure normal-open auxiliary interface (1 d) are communicated, and the openable auxiliary interface I (1 c) is in a closed state; when the four interfaces are in an intermediate state of opening and closing, all the four interfaces are communicated; when the compressor is in a closed state, the air suction connection interface (1 a) of the compressor, the low-pressure normal-open auxiliary interface (1 d) and the openable auxiliary interface I (1 c) are communicated, and the air separation connection pipeline interface (1 b) is closed;
the compressor (2) is a plurality of scroll compressors connected in parallel.
2. A scroll parallel refrigeration unit as set forth in claim 1 wherein: the compressor (2) is in flange connection with a compressor suction connection interface (1 a) of the suction stop valve (1) and a compressor discharge connection interface (3 a) of the discharge stop valve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810116985.2A CN108224827B (en) | 2018-02-06 | 2018-02-06 | Vortex parallel refrigerating unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810116985.2A CN108224827B (en) | 2018-02-06 | 2018-02-06 | Vortex parallel refrigerating unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108224827A CN108224827A (en) | 2018-06-29 |
| CN108224827B true CN108224827B (en) | 2024-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810116985.2A Active CN108224827B (en) | 2018-02-06 | 2018-02-06 | Vortex parallel refrigerating unit |
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| CN (1) | CN108224827B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008014560A (en) * | 2006-07-05 | 2008-01-24 | Daikin Ind Ltd | Refrigeration system |
| JP2010127481A (en) * | 2008-11-25 | 2010-06-10 | Fujitsu General Ltd | Air conditioner |
| CN102778067A (en) * | 2012-08-06 | 2012-11-14 | 大连三洋压缩机有限公司 | Cooling system of variable frequency vortex parallel connection machine set and operating method thereof |
| CN202581915U (en) * | 2012-05-25 | 2012-12-05 | 南京金陵鸿博环境科技发展有限公司 | Digital scroll paralleled unit |
| CN203869359U (en) * | 2014-06-04 | 2014-10-08 | 南京金陵鸿博环境科技发展有限公司 | Hot-gas defrosting type digital scroll parallel unit |
| CN104377884A (en) * | 2014-11-06 | 2015-02-25 | 广州高澜节能技术股份有限公司 | Combined type water cooling system for motor and frequency converter |
| CN207963220U (en) * | 2018-02-06 | 2018-10-12 | 松下冷机系统（大连）有限公司 | A kind of vortex parallel refrigeration unit |
-
2018
- 2018-02-06 CN CN201810116985.2A patent/CN108224827B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008014560A (en) * | 2006-07-05 | 2008-01-24 | Daikin Ind Ltd | Refrigeration system |
| JP2010127481A (en) * | 2008-11-25 | 2010-06-10 | Fujitsu General Ltd | Air conditioner |
| CN202581915U (en) * | 2012-05-25 | 2012-12-05 | 南京金陵鸿博环境科技发展有限公司 | Digital scroll paralleled unit |
| CN102778067A (en) * | 2012-08-06 | 2012-11-14 | 大连三洋压缩机有限公司 | Cooling system of variable frequency vortex parallel connection machine set and operating method thereof |
| CN203869359U (en) * | 2014-06-04 | 2014-10-08 | 南京金陵鸿博环境科技发展有限公司 | Hot-gas defrosting type digital scroll parallel unit |
| CN104377884A (en) * | 2014-11-06 | 2015-02-25 | 广州高澜节能技术股份有限公司 | Combined type water cooling system for motor and frequency converter |
| CN207963220U (en) * | 2018-02-06 | 2018-10-12 | 松下冷机系统（大连）有限公司 | A kind of vortex parallel refrigeration unit |
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| Publication number | Publication date |
|---|---|
| CN108224827A (en) | 2018-06-29 |
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