CN101650065A - Control method of cold storage system - Google Patents
Control method of cold storage system Download PDFInfo
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- CN101650065A CN101650065A CN200810213054A CN200810213054A CN101650065A CN 101650065 A CN101650065 A CN 101650065A CN 200810213054 A CN200810213054 A CN 200810213054A CN 200810213054 A CN200810213054 A CN 200810213054A CN 101650065 A CN101650065 A CN 101650065A
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- magnetic valve
- open
- coolant pump
- ice
- control method
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Abstract
The invention discloses a control method of a cold storage system. The cold storage system comprises a main engine 1, an evaporator 2, an ice storage tank 3, end equipment 4, a secondary refrigerant pump 5, a secondary refrigerant pump 6, a disturbance water pump 7, corresponding secondary refrigerant tubes, solenoid valves and the like. Flow direction of a secondary refrigerant of the cold storage system is directed by turning on all parts so as to select one of a cold storage loop and an ice melting loop for operation and realize switching of five operating conditions including cold storage,cooling by the ice storage tank, cooling by the main engine only, combined cooling by the ice storage tank and the main engine, combination of ice storage and cooling. Initial cost of the system is saved, efficiency is enhanced and control reliability is greatly enhanced based on realization of all functions.
Description
Technical field
The present invention relates to a kind of air-conditioning system control method, particularly a kind of control method of cold storage system.
Background technology
Chilling air conditioning system is to utilize electrical network cheap electric power such as the night electricity of low-load period, and 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 demand of electric power, the air-conditioning system of realization power system " peak load shifting " on the electrical network high load capacity phase such as the daytime of electricity price costliness.
Cold accumulation air-conditioner all is provided with heat exchanger on the ice-melt loop at present, carries out the cold transmission of refrigerating medium and user's end equipment by described heat exchanger, makes the loss in heat exchanger of a part of cold like this, has lowered heat exchange efficiency.
Summary of the invention
The purpose of this invention is to provide a kind ofly can realize having cold-storage, method that Ice Storage Tank cooling, the independent cooling of main frame, Ice Storage Tank main frame associating cooling, cold-storage limit, limit 5 kinds of operating modes of cooling switch mutually.
Technical scheme of the present invention is as follows:
A kind of cold accumulation system is provided, this system contains main frame 1, evaporimeter 2, Ice Storage Tank 3, end-equipment 4, coolant pump 5, coolant pump 6, disturbance water pump 7 and corresponding coolant ducts and magnetic valve, described evaporimeter 2 connects and composes loop with Ice Storage Tank 3 usefulness pipelines, sets gradually first magnetic valve 8, the 3rd magnetic valve 9 on the pipeline that evaporimeter 2 outlets and Ice Storage Tank 3 enter the mouth; On the pipeline that Ice Storage Tank 3 outlets and evaporimeter 2 enter the mouth, set gradually coolant pump 5, coolant pump 6; Be arranged in parallel the 4th magnetic valve 10 at described coolant pump 5 two ends, on the pipeline between described the 4th magnetic valve 10 and the coolant pump 6, connect the end-equipment pipeline, end-equipment 4, second magnetic valve 11 are set on described end-equipment pipeline, and the other end of end-equipment pipeline is connected on the pipeline between first magnetic valve 8 and the 3rd magnetic valve 9.
In addition, this device also comprises the disturbance water pump 7 that is arranged on the Ice Storage Tank disturbance pipeline.
When above-mentioned cold accumulation system moved under different mode, the running status of each parts was as shown in the table:
State | First |
Second |
The 3rd |
The 4th |
|
|
|
Refrigeration host computer 1 |
Cold-storage | Open | Close | Open | Open | Close | Open | Arbitrarily | Open |
Ice-melt | Close | Open | Open | Open | Open | Close | Arbitrarily | Close |
The main frame cooling | Open | Open | Close | Arbitrarily | Close | Open | Arbitrarily | Open |
The associating cooling | Open | Open | Open | Close | Open | Open | Arbitrarily | Open |
Supply while holding | Open | Open | Open | Open | Close | Open | Arbitrarily | Open |
The present invention compared with prior art has the following advantages and effect: this device flows directly into end-equipment from the refrigerating medium of main frame or Ice Storage Tank outflow, has improved heat exchange efficiency, has saved the investment of heat transmission equipment, makes the structure of system more succinct, compactness; The present invention can satisfy the operation of 5 kinds of operating modes, can save the initial cost of system on the basis of realizing all functions, raises the efficiency, and the reliability of control is increased substantially.
Description of drawings
Fig. 1 is a kind of cold accumulation system structural representation of the present invention.
Fig. 2 is the flow graph under the cold-storage operating mode of the present invention.
Fig. 3 is the flow graph under the ice-melt cooling operating mode of the present invention.
Fig. 4 is the flow graph under the main frame cooling operating mode of the present invention.
Fig. 5 is the flow graph under the associating cooling operating mode of the present invention.
Fig. 6 is the flow graph that supplies while holding under the operating mode of the present invention.
The specific embodiment
The present invention is further illustrated below in conjunction with accompanying drawing and specific embodiment.
Fig. 1 is a kind of cold accumulation system structural representation of the present invention.
This device is made up of main frame 1, evaporimeter 2, Ice Storage Tank 3, end-equipment 4, coolant pump (5,6), disturbance water pump 7 and corresponding coolant ducts and magnetic valve.Evaporimeter 2 connects and composes loop with Ice Storage Tank 3 usefulness pipelines, sets gradually first magnetic valve 8, the 3rd magnetic valve 9 on the pipeline that evaporimeter 2 outlets and Ice Storage Tank 3 enter the mouth; On the pipeline that Ice Storage Tank 3 outlets and evaporimeter 2 enter the mouth, set gradually coolant pump 5, coolant pump 6; Be arranged in parallel the 4th magnetic valve 10 at described coolant pump 5 two ends, on the pipeline between described the 4th magnetic valve 10 and the coolant pump 6, connect the end-equipment pipeline, end-equipment 4, second magnetic valve 11 are set on described end-equipment pipeline, and the other end of end-equipment pipeline is connected on the pipeline between first magnetic valve 8 and the 3rd magnetic valve 9.
In addition, this device also comprises the disturbance water pump 7 that is arranged on the Ice Storage Tank disturbance pipeline.
When this device ran on different operating mode, the state of the flow direction of refrigerating medium and each parts was as described below in the device.
(a), when cold accumulation system operates in the cold-storage pattern (as shown in Figure 2), main frame 1 operation, second magnetic valve 11 cuts out, coolant pump 5 is closed, first magnetic valve 8, the 3rd magnetic valve 9, the 4th magnetic valve 10 are opened, coolant pump 6 operations, refrigerating medium flows to after coolant pump 6 pressurizations and flows into ice making in the ice-reserving cell body 3 after evaporimeter 2 absorbs cold, behind the released cold quantity, return coolant pump 6 by the 4th magnetic valve 10 successively again, enter next circulation.
(b), when cold accumulation system operates in ice-melt cooling pattern (as shown in Figure 3), main frame 1 cuts out, first magnetic valve 8, coolant pump 6 are closed, second magnetic valve 11, the 3rd magnetic valve 9, the 4th magnetic valve 10 are opened, coolant pump 5 operations, refrigerating medium enters end-equipment 4, the refrigerating medium that flows out from end-equipment 4 flows to the Ice Storage Tank 3 ice-melt after through coolant pump 5 pressurizations and gets and coldly flow into end-equipments 4 by the 3rd magnetic valve 9, the second magnetic valves 11 successively again and enter next circulation.
(c), when cold accumulation system operates in the independent cooling pattern of main frame (as shown in Figure 4), main frame 1 operation, the 3rd magnetic valve 9 and the 4th magnetic valve 10 have at least one to close, coolant pump 5 is closed, first magnetic valve 8, second magnetic valve 11 are opened, coolant pump 6 operations, refrigerating medium flows into end-equipment 4, the refrigerating medium that flows out from end-equipment 4 is after coolant pump 6 pressurization inflow evaporators 2 absorb colds, flow into end-equipment 4 by first magnetic valve, 8, the second magnetic valves 11 successively again and enter next circulation.
(d), when cold accumulation system operates in main frame and Ice Storage Tank associating cooling pattern (as shown in Figure 5), main frame 1 operation, first magnetic valve 8, second magnetic valve 11, the 3rd magnetic valve 9 are opened, the 4th magnetic valve 10 cuts out, coolant pump 5,6 operations, refrigerating medium is converged after flowing out flow through respectively first magnetic valve 8, the 3rd magnetic valve 9 by evaporimeter 2, Ice Storage Tank 3, flow into end-equipment 4 through second magnetic valve 11, the refrigerating medium that is flowed out by end-equipment 4 divides two-way: the one tunnel through coolant pump 5 pressurization inflow Ice Storage Tank; Another road inflow evaporator 2 after coolant pump 6 pressurizations enters next circulation.
(e), operate in main frame cooling simultaneously (as shown in Figure 6) during the ice-reserving pattern when cold accumulation system, main frame 1 operation, first magnetic valve 8, second magnetic valve 11, the 3rd magnetic valve 9, the 4th magnetic valve 10 are opened, coolant pump 5 is closed, coolant pump 6 operations, refrigerating medium are flowed out by evaporimeter 2 and be divided into two-way behind first magnetic valve 8: the one tunnel flows into coolant pump 6 through the 3rd magnetic valve 11, Ice Storage Tank 3, the 4th magnetic valve 10 successively; Another road flows into coolant pump 6 through second magnetic valve 11, end-equipment 4 successively, and refrigerating medium is got cold by coolant pump 6 pressurization back inflow evaporators 2, enter next circulation.
Claims (8)
1, a kind of control method of cold storage system, described cold accumulation system comprises main frame 1, evaporimeter 2, Ice Storage Tank 3, end-equipment 4, coolant pump 5, coolant pump 6, disturbance water pump 7 and corresponding coolant ducts and magnetic valve, described evaporimeter 2 connects and composes loop with Ice Storage Tank 3 usefulness pipelines, sets gradually first magnetic valve 8, the 3rd magnetic valve 9 on the pipeline that evaporimeter 2 outlets and Ice Storage Tank 3 enter the mouth; On the pipeline that Ice Storage Tank 3 outlets and evaporimeter 2 enter the mouth, set gradually coolant pump 5, coolant pump 6; Be arranged in parallel the 4th magnetic valve 10 at described coolant pump 5 two ends, on the pipeline between described the 4th magnetic valve 10 and the coolant pump 6, connect the end-equipment pipeline, end-equipment 4, second magnetic valve 11 are set on described end-equipment pipeline, the other end of end-equipment pipeline is connected on the pipeline between first magnetic valve 8 and the 3rd magnetic valve 9, it is characterized in that, select the work of one of described cold-storage loop and ice-melt loop by the conducting state of each parts.
2, control method according to claim 1, it is characterized in that, described each parts are first magnetic valve 8, second magnetic valve 11, the 3rd magnetic valve 9, the 4th magnetic valve 10, coolant pump 5, coolant pump 6, disturbance water pump 7, refrigeration host computer 1, the lead refrigerating medium circulation direction of described cold accumulation system of conducting state by each parts realizes selecting the work of one of described cold-storage loop and ice-melt loop.
3, control method according to claim 2 is characterized in that, the ice-melt loop of this method directly makes refrigerating medium flow into user's end-equipment 4 without heat exchanger
4, control method according to claim 2 is characterized in that, the state such as the following table of each parts when cold accumulation system carries out the cold-storage operation:
5, control method according to claim 2 is characterized in that, the state of each parts such as following table when cold accumulation system carries out ice melting operation:
6, control method according to claim 2 is characterized in that, the state of each parts such as following table when cold accumulation system carries out the main frame cooling:
7, control method according to claim 2 is characterized in that, the state of each parts such as following table when cold accumulation system is united cooling:
8, control method according to claim 2 is characterized in that, cold accumulation system carry out while holding for the time each parts state such as following table:
Priority Applications (1)
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CN200810213054A CN101650065A (en) | 2008-08-16 | 2008-08-16 | Control method of cold storage system |
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CN200810213054A CN101650065A (en) | 2008-08-16 | 2008-08-16 | Control method of cold storage system |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102032727A (en) * | 2010-12-11 | 2011-04-27 | 上海汉福空气处理设备有限公司 | Intelligent control system for variable flow direct evaporation type ice storage air conditioner |
CN105640164A (en) * | 2015-12-30 | 2016-06-08 | 西安交通大学 | Ice storage cold fresh display cabinet |
CN106931706A (en) * | 2017-04-18 | 2017-07-07 | 海南佩尔优科技有限公司 | A kind of freezer cold supply system and its control method |
CN106958977A (en) * | 2017-04-18 | 2017-07-18 | 海南佩尔优科技有限公司 | A kind of freezer cooling equipment and its control method |
CN107024063A (en) * | 2017-04-18 | 2017-08-08 | 海南佩尔优科技有限公司 | A kind of United system and its control method |
CN113959134A (en) * | 2021-11-25 | 2022-01-21 | 哈尔滨光大冰场制造有限公司 | Novel process for collecting and refrigerating natural cold source of refrigerating ice field |
WO2023142718A1 (en) * | 2022-01-25 | 2023-08-03 | 大连理工大学 | Internal circulation type clathrate hydrate cold storage system and method |
-
2008
- 2008-08-16 CN CN200810213054A patent/CN101650065A/en active Pending
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102032727A (en) * | 2010-12-11 | 2011-04-27 | 上海汉福空气处理设备有限公司 | Intelligent control system for variable flow direct evaporation type ice storage air conditioner |
CN105640164A (en) * | 2015-12-30 | 2016-06-08 | 西安交通大学 | Ice storage cold fresh display cabinet |
CN105640164B (en) * | 2015-12-30 | 2019-02-05 | 西安交通大学 | A kind of cold fresh showcase of ice storage |
CN106931706A (en) * | 2017-04-18 | 2017-07-07 | 海南佩尔优科技有限公司 | A kind of freezer cold supply system and its control method |
CN106958977A (en) * | 2017-04-18 | 2017-07-18 | 海南佩尔优科技有限公司 | A kind of freezer cooling equipment and its control method |
CN107024063A (en) * | 2017-04-18 | 2017-08-08 | 海南佩尔优科技有限公司 | A kind of United system and its control method |
CN113959134A (en) * | 2021-11-25 | 2022-01-21 | 哈尔滨光大冰场制造有限公司 | Novel process for collecting and refrigerating natural cold source of refrigerating ice field |
WO2023142718A1 (en) * | 2022-01-25 | 2023-08-03 | 大连理工大学 | Internal circulation type clathrate hydrate cold storage system and method |
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Open date: 20100217 |