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CN200961918Y - Ice storage unit and air conditioning system using same - Google Patents

Ice storage unit and air conditioning system using same Download PDF

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Publication number
CN200961918Y
CN200961918Y CNU2006200573521U CN200620057352U CN200961918Y CN 200961918 Y CN200961918 Y CN 200961918Y CN U2006200573521 U CNU2006200573521 U CN U2006200573521U CN 200620057352 U CN200620057352 U CN 200620057352U CN 200961918 Y CN200961918 Y CN 200961918Y
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CN
China
Prior art keywords
ice
valve
storage unit
outer contact
expansion valve
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.)
Expired - Lifetime
Application number
CNU2006200573521U
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Chinese (zh)
Inventor
肖洪海
张华�
张桃
张龙
沈军
樊华云
严伟林
黄玉优
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.)
Gree Electric Appliances Inc of Zhuhai
Original Assignee
Gree Electric Appliances Inc of Zhuhai
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Publication date
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Priority to CNU2006200573521U priority Critical patent/CN200961918Y/en
Application granted granted Critical
Publication of CN200961918Y publication Critical patent/CN200961918Y/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14Thermal energy storage
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/80Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
    • Y02P60/85Food storage or conservation, e.g. cooling or drying

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  • Air Conditioning Control Device (AREA)

Abstract

The utility model relates to an air conditioning system and air conditioning component, in particular to ice cold-storage unit. A super-cooling type ice cold storage machine set comprises an ice storage device, a closed circulation pipeline and three external contacts, wherein the closed circulation pipeline passes through the ice storage device, an electronic expansion valve and three electromagnetic valves are arranged on the closed circulation pipeline, the electronic expansion valve is connected with one of the electromagnetic valves in parallel, and the other two electromagnetic valves are connected in parallel; the first external connection point is positioned on one side of the electronic expansion valve, the second external connection point is positioned between the electromagnetic valve and the ice storage device, the electromagnetic valve is connected between the electromagnetic valve and the second external connection point, and the other end of the electromagnetic valve is a third external connection point. The utility model discloses a super-cooled ice cold-storage unit can realize the switching of six kinds of operational mode of ice-storage, ice-melt refrigeration, conventional refrigeration, heat pump, heat accumulation and heat release, utilizes ice-storage equipment ability to the at utmost, and reasonable control reaches best energy-conserving effect.

Description

The air-conditioning system of this ice cold-storage unit of ice cold-storage unit and use
Technical field
The utility model relates to a kind of air-conditioning system and air-condition assembly, particularly a kind of ice cold-storage unit.
Background technology
Existing ice-chilling air conditioning system is to utilize the electrical network cheap electric power of low-load period, and as night electricity, the cold of refrigeration system being produced by refrigerating medium (being generally glycol water) is stored in the water, water congeals into ice; And,, the cold in the ice is discharged to the air-conditioning system cooling, thereby reduce the electrical network high load capacity phase to the requirement of electric power, the air-conditioning system of realization power system " peak load shifting " as daytime in the electrical network high load capacity phase of electricity price costliness.In the area of power shortage, ice-storage system can be realized " load shift "---the refrigeration duty of supply of electric power peak period is transferred to the electric load low-valley interval, improve efficiency of energy utilization, solve electric power peak period supply of electric power problem.Therefore, this technology has been subjected to the support energetically of the electric power policy of user's welcome and power department, develops rapidly at home.On March 2nd, 2005, disclosed application number was that 200410074074.6 cold accumulating device by ice is referring to Fig. 1, refrigeration unit and heat exchanger connect and compose loop in this device, on the pipeline of heat exchanger exit and cold-producing medium group inlet heat exchanger control valve, refrigerating medium and cold machine control valve are set; On the pipeline between coolant pump and the cold machine control valve, connect ice barrel road, set gradually ice groove control valve and ice groove on the ice barrel road, the other end on ice barrel road export with refrigeration unit and heat exchanger entrance between pipeline be connected; Connect bypass line on the pipeline between heat exchanger control valve and the coolant pump, bypass regulator valve is set on the bypass line, the other end of bypass line is connected with the pipeline of icing between groove control valve and the ice groove.The weak point of this ice cold-storage unit is: 1, change is bigger on original refrigeration unit basis, needs refrigerating medium and coolant pump in addition, complex structure, cost height; 2, this ice cold-storage unit only has cool storage function, and does not have heat accumulation function; 3, this ice cold-storage unit can't improve the degree of supercooling of refrigeration unit.
The utility model content
Technical problem to be solved in the utility model is, provide a kind of simple in structure, have an Overcold ice cold-storage unit of cold-storage and heat accumulation function simultaneously.
The utility model also provides a kind of air-conditioning system of using above-mentioned Overcold ice cold-storage unit.
Technical problem to be solved in the utility model is achieved by the following technical solution: a kind of Overcold ice cold-storage unit, it comprises ice storage unit, a closed circulation pipeline and three outer contacts, this closed circulation pipeline is by this ice storage unit, one electric expansion valve and three magnetic valves are arranged on the closed circulation pipeline, electric expansion valve and one of them magnetic valve parallel connection, two other magnetic valve parallel connection; Wherein the first outer contact is positioned at electric expansion valve one side, and the second outer contact is connected to a magnetic valve between the magnetic valve and the above-mentioned second outer contact between magnetic valve and ice storage unit, and the other end of magnetic valve is the 3rd outer contact.
A kind of air-conditioning system, it comprises compressor, cross valve, outdoor heat exchanger, the valve group that one electric expansion valve and check valve are formed, indoor set in parallel, each indoor set branch road front end has electric expansion valve, each component priority order connects to form loop, it also comprises Overcold ice cold-storage unit, this Overcold ice cold-storage unit comprises ice storage unit, one closed circulation pipeline and three outer contacts, this closed circulation pipeline is by this ice storage unit, one electric expansion valve and three magnetic valves are arranged on the closed circulation pipeline, electric expansion valve and one of them magnetic valve parallel connection, two other magnetic valve parallel connection; Wherein the first outer contact is positioned at electric expansion valve one side, and the second outer contact is connected to a magnetic valve between the magnetic valve and the above-mentioned second outer contact between magnetic valve and ice storage unit, and the other end of magnetic valve is the 3rd outer contact; The first outer contact and the second outer contact are connected between outdoor heat exchanger and the indoor set, and the first outer contact is near outdoor heat exchanger; The 3rd outer contact is connected between cross valve and the indoor set.
The Overcold ice cold-storage unit of the utility model design can be realized the switching of ice-reserving, ice-melt refrigeration, conventional refrigeration, heat pump, accumulation of heat and six kinds of operational modes of heat release, farthest utilizes the ice-storage equipment ability, and rationally control reaches optimum energy-saving effect.Ice-storage equipment night in summer as evaporimeter, utilize the preferential electricity price of low ebb to carry out the ice making cold-storage; Peak times of power consumption on daytime, ice-storage equipment improves the cold-producing medium degree of supercooling as the subcooler of condenser, thereby improves the performance of unit, increases refrigerating capacity, reduces the idle call electric weight; When room air conditioner load hour, can realize again without ice-storage equipment, directly carry out the conventional air-conditioning operation.To winter, this system can also realize regenerative operation, and cold accumulating device by ice utilizes the preferential electricity price of low ebb to carry out regenerative operation as condenser in the winter time night; Peak times of power consumption on daytime, ice-storage equipment improves complete machine operation evaporating temperature as evaporimeter, thereby improves unit performance in a period of time, increases heating capacity, reduces the idle call electric weight, realizes Optimal Control and utilization to ice storage unit, reaches energy-conservation requirement.
Description of drawings
Fig. 1 is a cold accumulating device by ice structure chart in the prior art;
Fig. 2 is the utility model air-conditioning system structure chart;
Cold-producing medium flow chart when Fig. 3 is the utility model air-conditioning system ice melting operation.
The specific embodiment
A kind of Overcold ice cold-storage unit 6, referring to Fig. 2, it comprises ice storage unit 61, a closed circulation pipeline and three outer contacts 67,68,69, this closed circulation pipeline is by this ice storage unit 61, one electric expansion valve 62 and three magnetic valves 63,64,65 are arranged on the closed circulation pipeline, electric expansion valve 62 and one of them magnetic valve 65 parallel connection, two other magnetic valve 63,64 parallel connections; Wherein outer contact 67 is positioned at electric expansion valve 62 1 sides, and outer contact 68 is connected to a magnetic valve 66 between magnetic valve 63,64 and the above-mentioned outer contact 68 between magnetic valve 63,64 and ice storage unit 61, and the other end of magnetic valve 66 is outer contact 69.
Referring to Fig. 2, a kind of air-conditioning system, it comprises valve group 41, indoor set in parallel 7,8 that compressor 1, gas-liquid separator 2, cross valve 3, outdoor heat exchanger 4, an electric expansion valve and check valve are formed, each indoor set branch road front end has electric expansion valve 71,81 respectively, each component priority order connects to form loop, in addition, this air-conditioning system also comprises an aforementioned Overcold ice cold-storage unit 6, outer contact 67 and outer contact 68 are connected between outdoor heat exchanger 4 and the indoor set 7,8, and outer contact 67 is near outdoor heat exchanger 4; Outer contact 69 is connected between cross valve 3 and the indoor set 7,8.
The control mode of above-mentioned air-conditioning system and operational mode realize going up and adopt the break-make control of passing through four electromagnetic valves 63,64,65,66 on ice storage unit to control switching and the control that realizes six kinds of operational modes of air-conditioning system with the adjusting control of an electronic expansion valve 62 and the adjusting of proportioning valve group 41 and electric expansion valve 71,81, and its each operational mode valve state of a control is as shown in the table:
State 41 62 63 64 65 71 81 66
The ice-reserving operation Bypass Throttling Close Close Close Close Close Open
Ice melting operation Bypass Arbitrarily Close Close Open Throttling Throttling Close
Conventional refrigeration Bypass Close Open Arbitrarily Close Throttling Throttling Close
Conventional heat pump Throttling Close Arbitrarily Open Close Standard-sized sheet Standard-sized sheet Close
Regenerative operation Throttling Standard-sized sheet Close Close Arbitrarily Standard-sized sheet Standard-sized sheet Close
The heat release heat pump Standard-sized sheet Standard-sized sheet Close Close Arbitrarily Throttling Throttling Close
Can realize the optimum utilization of freely switching of six kinds of operational modes of Overcold unit and cold-storage and thermal storage by above valve control.
Fig. 3 is the service chart of cold-producing medium when air-conditioning system realizes ice melting operation in the utility model control method.Move under this pattern, ice storage unit 61 improves the cold-producing medium degree of supercooling as the subcooler of outdoor heat exchanger 4, thereby improves the performance of unit, increases refrigerating capacity, reduces air-conditioning at electric power peak period power consumption.
The utility model also has some other distortion or improvement.If those skilled in the art are subjected to the change or the improvement of the conspicuous unsubstantiality that inspiration of the present utility model makes, all belong to the protection domain of the utility model claims.

Claims (2)

1, a kind of Overcold ice cold-storage unit, it is characterized in that, it comprises ice storage unit (61), a closed circulation pipeline and three outer contacts (67,68,69), this closed circulation pipeline is by this ice storage unit (61), one electric expansion valve (62) and three magnetic valves (63,64,65) are arranged on the closed circulation pipeline, electric expansion valve (62) and one of them magnetic valve (65) parallel connection, two other magnetic valve (63,64) parallel connection; Outer contact (67) is positioned at electric expansion valve (62) one sides, outer contact (68) is positioned between magnetic valve (63,64) and the ice storage unit (61), be connected to a magnetic valve (66) between magnetic valve (63,64) and the outer contact (68), the other end of magnetic valve (66) is outer contact (69).
2, a kind of air-conditioning system, it comprises compressor (1), cross valve (3), outdoor heat exchanger (4), the valve group (41) that one electric expansion valve and check valve are formed, indoor set (7 in parallel, 8), each indoor set branch road front end has electric expansion valve (71 respectively, 81), each component priority order connects to form loop, it is characterized in that, it also comprises Overcold ice cold-storage unit (6), this Overcold ice cold-storage unit (6) comprises ice storage unit (61), one closed circulation pipeline and three outer contacts (67,68,69), this closed circulation pipeline is by this ice storage unit (61), one electric expansion valve (62) and three magnetic valves (63 are arranged on the closed circulation pipeline, 64,65), electric expansion valve (62) and one of them magnetic valve (65) parallel connection, two other magnetic valve (63,64) parallel connection; Outer contact (67) is positioned at electric expansion valve (62) one sides, outer contact (68) is positioned between magnetic valve (63,64) and the ice storage unit (61), be connected to a magnetic valve (66) between magnetic valve (63,64) and the outer contact (68), the other end of magnetic valve (66) is outer contact (69); Outer contact (67) and outer contact (68) are connected between outdoor heat exchanger (4) and the indoor set (7,8), and outer contact (67) is near outdoor heat exchanger (4); Outer contact (69) is connected between cross valve (3) and the indoor set (7,8).
CNU2006200573521U 2006-04-04 2006-04-04 Ice storage unit and air conditioning system using same Expired - Lifetime CN200961918Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101881492A (en) * 2010-06-24 2010-11-10 上海弗格森制冷设备有限公司 Dynamic ice cold storing and refrigerating equipment
CN105588242A (en) * 2015-11-09 2016-05-18 青岛海信日立空调系统有限公司 Energy storage assembly and multi-split air-conditioning system
CN105910360A (en) * 2016-06-01 2016-08-31 广东美的制冷设备有限公司 Air-conditioning system and condensation prevention control method thereof
US10941955B2 (en) 2017-10-27 2021-03-09 Dometic Sweden Ab Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle
CN112762531A (en) * 2020-12-31 2021-05-07 广东欧科空调制冷有限公司 Air conditioning unit
US11254183B2 (en) 2017-08-25 2022-02-22 Dometic Sweden Ab Recreational vehicle, cooling device, controlling system and method for controlling the cooling device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101881492A (en) * 2010-06-24 2010-11-10 上海弗格森制冷设备有限公司 Dynamic ice cold storing and refrigerating equipment
CN105588242A (en) * 2015-11-09 2016-05-18 青岛海信日立空调系统有限公司 Energy storage assembly and multi-split air-conditioning system
CN105588242B (en) * 2015-11-09 2018-07-17 青岛海信日立空调系统有限公司 A kind of accumulation of energy component and multi-online air-conditioning system
CN105910360A (en) * 2016-06-01 2016-08-31 广东美的制冷设备有限公司 Air-conditioning system and condensation prevention control method thereof
US11254183B2 (en) 2017-08-25 2022-02-22 Dometic Sweden Ab Recreational vehicle, cooling device, controlling system and method for controlling the cooling device
US11919363B2 (en) 2017-08-25 2024-03-05 Dometic Sweden Ab Recreational vehicle, cooling device, controlling system and method for controlling the cooling device
US10941955B2 (en) 2017-10-27 2021-03-09 Dometic Sweden Ab Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle
CN112762531A (en) * 2020-12-31 2021-05-07 广东欧科空调制冷有限公司 Air conditioning unit

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Granted publication date: 20071017

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