EP1979692A2 - Système de refroidissement pour réfrigérateur électrique - Google Patents

Système de refroidissement pour réfrigérateur électrique

Info

Publication number
EP1979692A2
EP1979692A2 EP07703830A EP07703830A EP1979692A2 EP 1979692 A2 EP1979692 A2 EP 1979692A2 EP 07703830 A EP07703830 A EP 07703830A EP 07703830 A EP07703830 A EP 07703830A EP 1979692 A2 EP1979692 A2 EP 1979692A2
Authority
EP
European Patent Office
Prior art keywords
mentioned
cooling system
compression
connection
evaporation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP07703830A
Other languages
German (de)
English (en)
Inventor
Jun Hong Feng
Xiao Tian Zhou
Wei Zhong Zhu
Qi Wu Zhu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP1979692A2 publication Critical patent/EP1979692A2/fr
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • F25B2400/00—Component parts or details not otherwise provided for in this subclass
    • F25B2400/06—Several compression cycles arranged in parallel
    • 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
    • F25B2400/00—Component parts or details not otherwise provided for in this subclass
    • F25B2400/07—Details of compressors or related parts
    • F25B2400/075—Details of compressors or related parts with parallel compressors
    • 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
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves
    • F25B2600/2507—Flow-diverting 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
    • F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
    • F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel

Definitions

  • the present invention relates to a cooling system for an electric refrigerator, in particular to a cooling system for an electric refrigerator, in which two compression devices are connected together to form a cooling circuit.
  • the electric refrigerators for domestic use currently available for sale on the market generally use an independent refrigeration system, or use an independent refrigeration system which may be provided by mechanical valves or electromagnetic valves
  • Dual circuit cooling systems for example, electric refrigerator with mechanical control, electric refrigerator with double temperature and double control, electric refrigerator with triple temperature and quadruple control, electric refrigerator with triple circuit, electric refrigerator with quadruple circulation, electric refrigerator, electric refrigerator with combined cooling, etc .
  • All of the electric refrigerators described above function in the manner that a compression device and a condensing device accomplish the cooling.
  • an independent cooling system only provides the cooling power for one of the chambers located in the electric refrigerator (for example for the cold storage chamber or for the freezer chamber of the relevant electric refrigerator).
  • two or more compression devices and condensing devices configured as a cooling circuit are required to accomplish the cooling task.
  • the cooling systems for different chambers of the electric refrigerator are completely independent of each other.
  • the cooling system has been designed divided into two independent cooling systems A and B.
  • Each of the two cooling systems described above has a compression device and a condensation device.
  • two compression devices are used to establish two independent refrigeration circuits. It is also possible that an electromagnetic valve will expand any one of the independent cooling systems to several different cooling circuits or air passages to create different temperature zones.
  • the above-mentioned electric refrigerators under normal temperature conditions for example: the outside temperature of the environment of the electric refrigerator is below 25 ° C, at the same time the frequency of use of the electric refrigerator is not high and the door of the electric refrigerator is not often open
  • single compression device basically provide the cooling capacity for all existing chambers of the electric refrigerator.
  • the outside temperature of the environment of the electric refrigerator is very high - as is the case, for example, in the southern regions of the People's Republic of China - or if the door of the electric refrigerator is opened at a high frequency, the penetration of external energy into the electrical energy Refrigerator immediately to increase the burden of the corresponding compression device. This in turn means that the electric refrigerator loses efficiency when used in certain regions or when used under certain conditions.
  • the acceleration of the rhythm of life means that the users use the electric refrigerator more and more often (for example, more and more food is introduced and removed more often).
  • the capacity of electric fridges is increasing. The larger the capacity of the electric refrigerator is designed, the higher the related performance requirements of the corresponding compression device of the electric refrigerator. Accordingly, the energy demand for the cooling of the electric refrigerator increases.
  • an electric refrigerator if an independent refrigeration system provides the refrigerating capacity only for one of the chambers in the electric refrigerator, the technical design must ensure that the requirements are met at maximum energy demand. So it is usually provided compression devices with very high cooling performance.
  • the object of the present invention is to provide a cooling system for an electric refrigerator in which two compression devices are connected together to a cooling circuit.
  • the design concept of the present invention is to provide a refrigeration system for an electric refrigerator as follows:
  • a refrigeration system for an electric refrigerator comprising a compression device, a condensation device, and an evaporation device, characterized in that the compression device referred to above is a pair of compression devices connected to each other, and the one-way coolant flow control is performed by a check valve.
  • the attachment of a check valve is performed at the entrances of the two above-mentioned compression devices, in order to carry out the control of the uninsulated coolant flow.
  • the cooling system for an electric refrigerator is a single-circuit cooling system, wherein the above-mentioned compression device and the condensation device are sequentially connected to a dry filtering device, a capillary tube, one or more evaporating devices, and a liquid storage device.
  • the cooling system for an electric refrigerator is a double-circuit cooling system, after the connection of the above-mentioned compression device and condensing device referred to above, the connection with the dry filtering device takes place and then divided by a solenoid valve into two circuits the connection with the capillary tube and evaporation device, wherein in each of these circuits the outlet of at least one evaporation device is connected to the liquid storage device and subsequently connected to the above-described compression device.
  • a liquid storage device may be used, or a liquid storage device may be provided for each circle.
  • the cooling system for an electric refrigerator is a triple-circuit cooling system or a four-circuit cooling system, wherein after connection of the above-mentioned compression device and condensing device referred to above the connection with the dry filtration device takes place and then divided by several solenoid valves into several circles the connection with capillary tube and vaporizing apparatus, in each of which circuits the outlet of at least one vaporizing device is connected to the liquid storage device and subsequently connected to the above-described compression device.
  • a common liquid storage device may be used, or a liquid storage device may be provided for each circle, or only some of the existing circuits may use a common liquid storage device.
  • Another design concept of the present invention is to provide a refrigeration system of an electric refrigerator as follows:
  • Cooling system for an electric refrigerator which has a main cooling system - formed from the first compression device, the first condensation device and the first evaporation device - characterized in that the above-mentioned cooling system further comprises an auxiliary cooling system - formed from second compression device, second condensation device and second auxiliary evaporation device -.
  • the above-referenced auxiliary cooling system and main cooling system are all single cycle systems, wherein the first compression device and the first condensation device are sequentially connected to a first dry filtration device, a first capillary tube, first or more first evaporator devices, and a first liquid storage device while the second compression device and the second condensation device are successively connected to a second dry filtration device, a second capillary tube, a second one or more second evaporation devices and the first liquid storage device, respectively
  • the above-mentioned auxiliary cooling system and the above-mentioned main cooling system are all dual-circuit systems, wherein after connection of the above-mentioned first compression device and first condensing device referred to above, the connection to the first dry filtering device is made and then divided into two circles by a first solenoid valve Connection with first capillary tube and first evaporation devices takes place, wherein in each of these circles the output of at least one first evaporation device is connected to the first liquid storage device and then connected to the above-mentioned first compression device and that after the connection of the above-mentioned second compression device and the above-mentioned second Condensation device the connection with the second dry filtration followed by a second solenoid valve in two circles divides the connection with the second capillary tube and second Evaporating apparatus is carried out, wherein in each of these circuits, the output of at least one second evaporation device is connected to the second liquid storage device and then connected to the above-mentioned second
  • the above-mentioned auxiliary cooling system and the above-mentioned main cooling system are multi-cycle systems, wherein after connection of the above-mentioned first compression device and first condensing device referred to above, connection is made to the first dry filtering device, and then divided into a plurality of circuits by a plurality of first electromagnetic valves with first capillary tube and first evaporation device, wherein in each of these circuits the output of at least one first evaporation device is connected to the first liquid storage device and subsequently connected to the above-mentioned first compression device and that after the connection of above-mentioned second compression device and second condensation device referred to above the connection with the secondambafilterungsvo followed by a plurality of second solenoid valves divided into a plurality of circuits the connection with the second capillary tube and second evaporation device takes place, wherein in each of these circuits the output of at least one second evaporation device is connected to the second liquid storage device and then connected to the above
  • the above-described first compression device and the second compression device may be a single compression device, or may be two compression devices that are connected to each other, and the one-way coolant flow control is performed by a one-way valve. It is also possible to conceive the compression device as a unitary whole.
  • the above-described first condensation device and the above-described second condensation device of the present invention may be two independent condensation devices.
  • an embodiment as a uniform condensation device is possible.
  • the above-mentioned first Evaporation apparatus and the above-mentioned second evaporation apparatus of the present invention can be two independent evaporation devices.
  • an embodiment as a uniform evaporation device is possible. Accordingly applies to the other components of the cooling system of the electric refrigerator according to the invention that they can be configured independently of each other or as a unit.
  • FIG. 1 is a construction diagram of a single-circuit cooling system according to Practical Embodiment 1 of the present invention.
  • Figure 2 is a construction overview of a double-circuit cooling system according to Practical Embodiment 1 of the present invention.
  • FIG. 3 is a construction overview of a triple-circuit cooling system according to Practical Embodiment 1 of the present invention.
  • FIG. 4 is a construction diagram of a four-cycle refrigeration system according to Practical Embodiment 1 of the present invention.
  • FIG. 5 is a construction diagram of a single-circuit cooling system according to Practical Embodiment 2 of the present invention.
  • FIG. 6 is a construction diagram of a single-circuit cooling system according to Practical Embodiment 3 of the present invention.
  • Figure 7 is a construction overview of a double-circuit cooling system according to Practical Embodiment 3 of the present invention.
  • FIG. 8 is a construction diagram of a multi-cycle cooling system according to Practical Embodiment 3 of the present invention.
  • Figure 1 is a practical embodiment 1, an inventive cooling system for an electric refrigerator with a
  • the cooling system in question has a compression device 1, a compression device V, a condensation device 2, a dry filtration device 3, a capillary tube 4, an evaporation device 5 and a liquid storage device 6.
  • a compression device 1 and compression device V takes place at the branches of compression device 1 and compression device 1 'each connection a check valve 7 with subsequent mutual connection.
  • the connection of the output to the input of condensation device 2 takes place.
  • the output of condensation device 2 is connected to the dry filtering device 3.
  • the output of the dry filtration device 3 is connected to capillary tube 4.
  • the outlet of capillary tube 4 is connected to the inlet of evaporator 5.
  • the output of the above-designated Evaporating device 5 is connected to the liquid storage device 6. Subsequently, by check valve 7 reconnection with input of compression device 1 and compression device V.
  • a double-circuit cooling system may use a common liquid storage device 6 or may be one in each circle
  • Liquid storage device 6 are connected.
  • an embodiment of the practical embodiment can also be carried out such that the output from one evaporator 5 is connected to the inlet of the other evaporator 5, thus giving the superfluous energy to the chamber of the other evaporator 5 (as in Figure 2) represented by the dotted line). In this way, an effective use of energy can take place.
  • Dry filtration device 3 is carried out, that is then divided by a solenoid valve 8 into two circles, wherein a circle with capillary tube 4 and evaporator 5 is connected to subsequently recycle by liquid storage device 6 with compression device 1 and compression device V.
  • the other circuit is in turn by solenoid valve 8 in two circles to then connect each of the circuits to capillary tube 4 and evaporator 5 and to reconnect with compressor 1 and compressor V through liquid storage device 6.
  • the three-circuit refrigeration system in question may have a common
  • Liquid storage device 6 use or a liquid storage device 6 can be connected at each circuit. It is also possible that only some circuits of the above-referenced cooling system share a liquid storage device 6.
  • an embodiment of the above-described practical embodiment is possible such that the output of the vaporizing device 5 is connected by a circle or two circles to the input of another vaporizing device 5, in order in this way the excess energy in the chamber of the other vaporizing device 5 (as shown by the dotted line in Figure 3). In this way, an effective use of energy can take place.
  • Dry filtering device 3 is carried out that is then divided by a solenoid valve 8 into two circles, each circuit is divided by another solenoid valve 8 again into two circles and then each circuit with capillary tube 4 and evaporator 5 is connected to then by liquid storage device 6 reconnection with Compression device 1 and compression device V produce.
  • the relevant four-circuit cooling system can have a common
  • Liquid storage device 6 use or a liquid storage device 6 can be connected at each circuit. It is also possible that only some circuits of the above-referenced cooling system share a liquid storage device 6.
  • an embodiment of the above-described practical embodiment is possible such that the output of the evaporation device 5 of a circle or of two circles or of three circles with the Entrance of another evaporator 5 is connected, so as to give the excess energy in the chamber of the other evaporator 5 (as shown in Figure 4 by the dotted line). In this way, an effective use of energy can take place.
  • FIG. 5 is a single-circuit cooling system according to Practical Embodiment 2, the difference with the single-circuit cooling system according to Practical Embodiment 1 being that a check valve 7 is provided on both sides of one of the two interconnected compression devices, the compression device 1 ' or that a check valve 7 is provided only on one side.
  • a check valve 7 is provided on both sides of one of the two interconnected compression devices, the compression device 1 ' or that a check valve 7 is provided only on one side.
  • the other compression device may remain in the non-operational state for a long time.
  • the check valve 7 In order to avoid damage by lubricating oil solution in the compression device, by closing the check valve 7, the influence of coolant in the non-operated compression device can be prevented.
  • the associated compression device is used to avoid the requirement of simultaneous operation of two compression devices.
  • Figures 6-8 is a cooling system for an electric refrigerator according to Practical Embodiment 3 having a main cooling system with compression device 10, first condensation device 20 and first evaporation device 50, the above-referenced cooling system also having an auxiliary cooling system with second compression device 10 '. , second condensation device 20 'and second evaporation device 50'.
  • FIG. 6 is a single-circuit cooling system according to Practical Embodiment 3, wherein the above-mentioned main cooling system and auxiliary cooling system are all single-circuit systems, with the above-described first compression device 10 and FIGS
  • the above-mentioned first condensation device 20 is successively connected to the first dry filtering device 30 and then divided by first solenoid valve 80 into two circuits the connection with the first capillary tube 40 and the first evaporation device 50 takes place, in each of these circles the output of at least a first evaporation device 50 with the first
  • Liquid storage device 60 is connected and then connected to the above-mentioned first compression device 10 and that after the connection of the above-mentioned second compression device 10 'and the above-mentioned second condensation device 20' the connection with the second dry filter device 30 'takes place and then by second solenoid valve 80' divided into two circles, the connection with the second capillary tube 40 'and second evaporation device 50' takes place, in each of which circuits the output of at least one second evaporation device 50 'is connected to the second liquid storage device 60' and subsequently connected to the above-mentioned second compression device 10 ' becomes.
  • Figure 7 is a double-circuit cooling system according to Practical Embodiment 3, wherein the above-mentioned main cooling system and auxiliary cooling system are all dual-circuit systems, connecting the above-mentioned first compression device 10 and the above-mentioned first condensation device 20 to dry-filtering device 30 and then divided by first solenoid valve 80 into two circles the connection with the first capillary tube 40 and the first evaporation device 50 is carried out, wherein in each of these circles the output of at least one first evaporation device 50 with the first
  • Liquid storage device 60 is connected and then connected to the above-mentioned first compression device 10 and that after the connection of the above-mentioned second compression device 10 'and the above-mentioned second condensation device 20' the connection with the second dry filter device 30 'takes place and then by second solenoid valve 80' divided into two circles, the connection with the second capillary tube 40 'and second evaporation device 50' takes place, in each of which circuits the output of at least one second evaporation device 50 'is connected to the second liquid storage device 60' and subsequently connected to the above-mentioned second compression device 10 ' becomes.
  • FIG. 8 is a multi-cycle cooling system according to Practical Embodiment 3, wherein the above-mentioned main cooling system and auxiliary cooling system are all multi-circulation systems, connecting the above-mentioned first compression device 10 and the above-mentioned first condensation device 20 to dry filtering device 30 and then divided into a plurality of circuits by a plurality of first electromagnetic valves 80, the first capillary tube 40 and first evaporation device 50 being connected, in each of which circuits the output of at least one first evaporation device 50 being connected to the first liquid storage device 60 and subsequently to the first compression device referred to above 10 is connected and that after the connection of the above-mentioned second compression device 10 'and protruding nd second condenser 20 'connected to the second dry filtration device 30' and then divided by a plurality of second solenoid valves 80 'in a plurality of circuits the connection with the second capillary tube 40' and second evaporator 50 'takes place, wherein
  • first compression device 10 and above-mentioned second compression device 10 'of Practical Embodiment 3 of the present invention may be two interconnected compression devices. It is also possible that they are frequency converter compression devices or other types of compression devices.
  • first compression device 10 and second compression device 10 'of the practical embodiment 3 of the present invention may be two independent compression devices.
  • an embodiment as a uniform compression device is possible.
  • the above-mentioned first condensation device 20 and the above-mentioned second condensation device 20 'of the present invention may be two independent condensation devices.
  • an embodiment as a uniform condensation device is possible.
  • the above-mentioned first evaporator 50 and the above-mentioned second evaporator 50 'of the present invention may be two independent evaporators.
  • an embodiment as a uniform evaporation device is possible. Accordingly applies to the other components of the cooling system of the electric refrigerator according to the invention that they can be configured independently of each other or as a unit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

L'invention concerne un système de refroidissement pour un réfrigérateur électrique qui comprend un dispositif de compression, un dispositif de condensation et un dispositif d'évaporation, le dispositif de compression susmentionné étant composé de deux dispositifs de compression mutuellement reliés. Entre chacun de ces deux dispositifs de compression et le dispositif d'évaporation se trouve un clapet anti-retour. Lorsque la puissance de refroidissement nécessaire du système de refroidissement du réfrigérateur est élevée ou bien lorsque le réfrigérateur électrique est utilisé fréquemment, les deux dispositifs de compression susmentionnés fonctionnent simultanément, ce qui permet de mettre à disposition la capacité de refroidissement nécessaire. La conception intégrant deux dispositifs de compression reliés prévoit un clapet anti-retour pour la commande. Ainsi, l'air de compression mis à disposition par le dispositif de compression est condensé par le dispositif de condensation pour assurer le refroidissement. L'air de compression ne s'écoule pas directement vers le dispositif d'évaporation. Lorsque la puissance de refroidissement nécessaire du système de refroidissement du réfrigérateur est élevée, elle peut être mise à disposition indifféremment par l'un ou l'autre des dispositifs de compression. Ainsi, d'une part la puissance de refroidissement mise à disposition est suffisante et, d'autre part, il est possible de faire des économies d'énergie.
EP07703830A 2006-01-13 2007-01-12 Système de refroidissement pour réfrigérateur électrique Ceased EP1979692A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNA2006100377446A CN101000192A (zh) 2006-01-13 2006-01-13 电冰箱制冷系统
PCT/EP2007/050289 WO2007082844A2 (fr) 2006-01-13 2007-01-12 Système de refroidissement pour réfrigérateur électrique

Publications (1)

Publication Number Publication Date
EP1979692A2 true EP1979692A2 (fr) 2008-10-15

Family

ID=37907322

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07703830A Ceased EP1979692A2 (fr) 2006-01-13 2007-01-12 Système de refroidissement pour réfrigérateur électrique

Country Status (4)

Country Link
EP (1) EP1979692A2 (fr)
CN (1) CN101000192A (fr)
RU (1) RU2008131471A (fr)
WO (1) WO2007082844A2 (fr)

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CN103635767A (zh) * 2011-11-25 2014-03-12 J·A·马丁内斯阿罗卡 同样能够用于以最大速度冷却或冷冻产品的行业中的电器
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CN106705346A (zh) * 2015-11-18 2017-05-24 何齐汉 智能无霜空调的控制方法
CN107062607A (zh) * 2017-03-23 2017-08-18 济南明湖制冷空调设备有限公司 复叠式空气能液体加热装置
CN109425140B (zh) * 2017-09-01 2020-12-18 青岛海尔特种电冰柜有限公司 基于非共沸混合工质的制冷回路及制冷设备
CN108151348A (zh) * 2017-12-06 2018-06-12 西安交通大学 一种用于单一空间制冷的双压缩机制冷系统及控制方法
CN109883104A (zh) * 2018-12-27 2019-06-14 青岛海尔特种制冷电器有限公司 冰箱及其控制方法
CN110296565A (zh) * 2019-07-19 2019-10-01 西安交通大学 一种双蒸发温度制冷系统及其控制方法
CN110579031A (zh) * 2019-09-27 2019-12-17 长虹美菱股份有限公司 一种冰箱的双循环制冷系统
CN115342540A (zh) * 2022-07-26 2022-11-15 珠海凌达压缩机有限公司 双路空调系统
CN117968306B (zh) * 2024-04-01 2024-07-12 上海东方低碳科技产业股份有限公司 一种集成式节能制冷设备
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Also Published As

Publication number Publication date
RU2008131471A (ru) 2010-02-20
CN101000192A (zh) 2007-07-18
WO2007082844A2 (fr) 2007-07-26
WO2007082844A3 (fr) 2007-09-20

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