CN104214866A - Unit-type ice storage air conditioning system - Google Patents
Unit-type ice storage air conditioning system Download PDFInfo
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- CN104214866A CN104214866A CN201410463488.1A CN201410463488A CN104214866A CN 104214866 A CN104214866 A CN 104214866A CN 201410463488 A CN201410463488 A CN 201410463488A CN 104214866 A CN104214866 A CN 104214866A
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Abstract
The invention relates to a unit-type ice storage air conditioning system which comprises a refrigerant circulation loop, a secondary refrigerant circulation loop, an ice making loop and a refrigerating loop, wherein the refrigerant circulation loop is formed by sequentially connecting a fan, a throttling valve, a heat exchanger and a compressor; the secondary refrigerant circulation loop is formed by sequentially connecting a secondary refrigerant storage box, a control valve I, a centrifugal pump I, a heat exchanger and a subcooler; the ice making loop is formed by sequentially connecting an ice storage bucket, a control valve II, a gas-liquid mixing pump and the subcooler; the refrigerating loop is formed by sequentially connecting the ice storage bucket, a control valve III, a centrifugal pump II and the tail end of an air conditioner. The unit-type ice storage air conditioning system utilizes an ice making system to make and store ice at a low ebb of power utilization at night and utilizes stored ice slurry to carry out refrigerating and cooling at the peak of power utilization so as to take effects of carrying out peak load shifting and avoiding the peak of power utilization; the ice slurry is thawed and adsorbs heat at the tail end of the air conditioner at the user side and has a great quantity of latent heat of phase change and heat exchange temperature difference of the air at the tail end of the air conditioner and the ice slurry is high, so that the size and transport energy consumption of the heat exchanger can be effectively reduced; generated low-temperature supplied air has good heat comfort.
Description
Technical field
The present invention relates to industrial refrigeration field, specifically a kind of modular ice-storage air-conditioning system.
Background technology
Ice slurry is a kind of solid-liquid two-phase mixtures solution containing a large amount of tiny ice crystal particle, and it has good mobility and huge phase transformation potential.As a kind of high-quality refrigerant, ice slurry has huge application space in the field such as HVAC and freezing and refrigeration.Now, making ice paste-making method has multiple, wherein Supercool method have that system is simple, ice making rate compared with the advantage high, energy loss is little, initial cost is low etc., have broad application prospects.In order to improve ice making efficiency, prevent from subcooler, producing ice to block up, in in continuous super-cooled water preparation device disclosed in application number 201220028410.3 and 201210020121.3, pipe, outer tube adopt conductive material, and in utilizing between pipe with outer tube the effect of high-voltage electrostatic field make water be down to 0 DEG C below not freeze, anti-stagnant ice is stifled.This method requires to use conductive material.In dynamic ice-making system disclosed in application number 200610051606.3 and 200820231345.8, ice slurry generator adopts the tube sheet shell and tube exchanger vertically placed, and utilize air compressor machine to blast compressed air, to reach enhanced heat exchange, suppress the object of sticking of ice crystal.This method utilizes vertical heat exchanger and air compressor machine, adds the complexity of system.In ice cold accumulation air conditioning device disclosed in application number 200910213396.7 and 200920257156.2, utilize ice machine and trash ice bucket to produce fluid state ice, the fluid state ice particle diameter that it obtains is comparatively large, is easy to blocking in the duct.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of modular ice-storage air-conditioning system, this air-conditioning system has two kinds of mode of operations cooperatively interacted, in ice making at night refrigeration on daytime, thus peak load shifting, but also have ice making rate high, reduce energy consumption and improve the advantages such as comfort of air conditioner.
The present invention is the technical scheme solving the problems of the technologies described above employing: a kind of modular ice-storage air-conditioning system, is made up of refrigerant circulation loop, refrigerating medium closed circuit, ice making loop and refrigerating circuit;
Described refrigerant circulation loop is the closed circuit that blower fan, choke valve, heat exchanger and compressor are connected in sequence, wherein, cold-producing medium enters into the heat intensification that heat exchanger absorbs the release of refrigerating medium closed circuit refrigerating medium after choke valve throttling, then compresses within the compressor and is cooled by blower fan thus complete circulation;
The closed circuit that described refrigerating medium closed circuit is refrigerating medium storage box, control valve I, centrifugal pump I, heat exchanger and subcooler connect and compose successively, wherein, refrigerating medium flows out by refrigerating medium storage box, and after control valve I, be centrifuged pump I send in heat exchanger, refrigerating medium in heat exchanger with the refrigerant heat exchanger in refrigerant circulation loop after temperature reduce, refrigerating medium after cooling flows into the heat absorbing recirculated water in ice making loop in subcooler and heats up, and then returns refrigerating medium storage box thus completes circulation;
Described ice making loop is ice storage barrel, control valve II, the closed circuit that gas-liquid mixing pump and subcooler are connected in sequence, wherein, to be sent in subcooler by gas-liquid mixing pump through control valve II after recirculated water is flowed out by ice storage barrel and to carry out heat exchange release heat with the refrigerating medium in refrigerating medium closed circuit and become temperature lower than the subcooled water of 0 DEG C, subcooled water becomes mixture of ice and water and enters into ice storage barrel after cold decontrol, water in ice storage barrel is extracted by gas-liquid mixing pump and again participates in circulation, and the ice slurry in ice storage barrel is fed in refrigerating circuit and participates in refrigeration cool-down,
The closed circuit that described refrigerating circuit is ice storage barrel, control valve III, centrifugal pump II and air conditioning terminal connect and compose successively, wherein, ice slurry in ice storage barrel drives it to enter into air conditioning terminal by centrifugal pump II to absorb the effect that extraneous heat reaches refrigeration after control valve III, and ice slurry returns in ice storage barrel the circulation participating in ice making loop be melted into water after air conditioning terminal heat absorption after again.
Beneficial effect: the present invention, compared with the air-conditioning system of prior art, has the following advantages:
1) the present invention utilizes ice-making system ice making when low power consumption at night, ice-reserving, and utilizes the ice of savings slurry to carry out refrigeration cool-down when peak of power consumption, thus plays peak load shifting, avoids the effect of peak of power consumption;
2) utilize the ice making of subcooled water method can make to remain the constant higher coefficient of heat transfer between water and refrigerant, ice making rate is high, and energy loss is little;
3) make in water, to be filled with a certain amount of micron dimension bubble by gas-liquid mixing pump, to strengthen the internal disturbance of water in subcooler, enhanced heat exchange, and suppress ice crystal to be attached in tube bank, improve when ice slurry terminad transports simultaneously and the stifled situation of ice occurs;
4) utilize centrifugal pump directly the ice of preparation slurry to be delivered to the air conditioning terminal of user side, reduce intermediate heat transfer link, reduce the operation energy consumption of system;
5) air conditioning terminal of ice slurry in user side melts heat absorption, and latent heat of phase change amount is large, and the heat transfer temperature difference that air conditioning terminal air and ice are starched is large, effectively can reduce exchanger body sum and transport energy consumption, and the cold air distribution produced has good thermal comfort.
Accompanying drawing explanation
Fig. 1 is structural principle schematic diagram of the present invention;
Reference numeral: 1, blower fan, 2, compressor, 3, heat exchanger, 4, choke valve, 5, centrifugal pump I, 6, control valve I, 7, refrigerating medium storage box, 8, subcooler, 9, gas-liquid mixing pump, 10, control valve II, 11, ice storage barrel, 12, control valve III, 13, centrifugal pump II, 14, air conditioning terminal.
Detailed description of the invention
As shown in the figure, a kind of modular ice-storage air-conditioning system, is made up of refrigerant circulation loop, refrigerating medium closed circuit, ice making loop and refrigerating circuit;
The closed circuit that described refrigerant circulation loop is blower fan 1, choke valve 4, heat exchanger 3 and compressor 2 are connected in sequence, wherein, cold-producing medium enters into the heat intensification that heat exchanger 3 absorbs the release of refrigerating medium closed circuit refrigerating medium after choke valve 4 throttling, then compresses in compressor 2 and is cooled by blower fan 1 thus complete circulation;
The closed circuit that described refrigerating medium closed circuit is refrigerating medium storage box 7, control valve I 6, centrifugal pump I 5, heat exchanger 3 and subcooler 8 connect and compose successively, wherein, refrigerating medium flows out by refrigerating medium storage box 7, and be centrifuged in pump I 5 feeding heat exchanger 3 after control valve I 6, refrigerating medium in heat exchanger 3 with the refrigerant heat exchanger in refrigerant circulation loop after temperature reduce, refrigerating medium after cooling flows into the heat absorbing recirculated water in ice making loop in subcooler 8 and heats up, and then returns refrigerating medium storage box 7 thus completes circulation;
Described ice making loop is ice storage barrel 11, control valve II 10, the closed circuit that gas-liquid mixing pump 9 and subcooler 8 are connected in sequence, wherein, to be sent in subcooler 8 by gas-liquid mixing pump 9 through control valve II 10 after recirculated water is flowed out by ice storage barrel 11 and to carry out heat exchange release heat with the refrigerating medium in refrigerating medium closed circuit and become temperature lower than the subcooled water of 0 DEG C, subcooled water becomes mixture of ice and water and enters into ice storage barrel 11 after cold decontrol, water in ice storage barrel 11 is extracted by gas-liquid mixing pump 9 and again participates in circulation, and the ice slurry in ice storage barrel 11 is fed in refrigerating circuit and participates in refrigeration cool-down,
The closed circuit that described refrigerating circuit is ice storage barrel 11, control valve III 12, centrifugal pump II 13 and air conditioning terminal 14 connect and compose successively, wherein, ice slurry in ice storage barrel 11 drives it to enter into air conditioning terminal 14 by centrifugal pump II 13 to absorb the effect that extraneous heat reaches refrigeration, again return the circulation in participation ice making loop ice storage barrel 11 in after ice slurry is melted into water after air conditioning terminal 14 absorbs heat after control valve III 12.
The course of work of refrigerant circulation loop in the present invention, refrigerating medium closed circuit, ice making loop and refrigerating circuit is as follows:
The course of work of refrigerant circulation loop is: cold-producing medium enters into the heat intensification that heat exchanger 3 absorbs the release of refrigerating medium closed circuit refrigerating medium after choke valve 4 throttling, then compresses in compressor 2 and is cooled by blower fan 1 thus complete circulation;
The course of work of refrigerating medium closed circuit is: cold-producing medium is after choke valve 4 throttling cooling, enter in heat exchanger 3 with refrigerating medium heat exchange, obtain the refrigerating medium of low temperature, the refrigerating medium of low temperature in subcooler 8 with the recirculated water heat exchange in ice making loop after, again sent in heat exchanger 3 by centrifugal pump I 5 and complete circulation with refrigerant heat exchanger, now control valve I 6, control valve II 10 are opened, and control valve III 12 closes;
The course of work in ice making loop is: the recirculated water in ice storage barrel 11, after being extracted out by gas-liquid mixing pump 9, enter the refrigerating medium heat exchange with low temperature in subcooler 8, become temperature lower than the subcooled water of 0 DEG C, subcooled water supercooled state after crossing cold decontrol is broken to as mixture of ice and water enters ice storage barrel 11, and frozen water is separated in ice storage barrel 11, the ice separated is stored in ice storage barrel 11, the water separated continues circulation, now control valve I 6, control valve II 10 are opened, and control valve III 12 closes;
The course of work of refrigerating circuit is: the ice slurry in ice storage barrel 11 sends into air conditioning terminal 14 by centrifugal pump II 13, in air conditioning terminal 14, after the thawing of ice slurry, generation water is back to ice storage barrel 11 and again participates in ice-make cycle, now control valve I 6, control valve II 10 close, and control valve III 12 is opened.
Air-conditioning system of the present invention has two kinds of mode of operations, i.e. ice-make mode and air conditioner refrigerating pattern:
Ice-make mode: control valve I 6, control valve II 10 are opened, control valve III 12 closes, and now refrigerant circulation loop, refrigerating medium closed circuit and ice making loop are normally run, and refrigerating circuit is out of service, and now system utilizes electricity consumption at night peak valley preparing ice slurry;
Air conditioner refrigerating pattern: control valve I 6, control valve II 10 close, and control valve III 12 is opened, and now refrigerant circulation loop, refrigerating medium closed circuit and ice making loop are out of service, and refrigerating circuit normally runs, the ice slurry that now system utilizes produce night freezes.
Claims (1)
1. a modular ice-storage air-conditioning system, is characterized in that: be made up of refrigerant circulation loop, refrigerating medium closed circuit, ice making loop and refrigerating circuit;
The closed circuit that described refrigerant circulation loop is blower fan (1), choke valve (4), heat exchanger (3) and compressor (2) are connected in sequence, wherein, cold-producing medium enters into the heat intensification that heat exchanger (3) absorbs the release of refrigerating medium closed circuit refrigerating medium after choke valve (4) throttling, then compresses in compressor (2) and is cooled by blower fan (1) thus complete circulation;
Described refrigerating medium closed circuit is refrigerating medium storage box (7), control valve I (6), centrifugal pump I (5), the closed circuit that heat exchanger (3) and subcooler (8) connect and compose successively, wherein, refrigerating medium flows out by refrigerating medium storage box (7), and be centrifuged in pump I (5) feeding heat exchanger (3) after control valve I (6), refrigerating medium in heat exchanger (3) with the refrigerant heat exchanger in refrigerant circulation loop after temperature reduce, refrigerating medium after cooling flows into the heat absorbing recirculated water in ice making loop in subcooler (8) and heats up, then return refrigerating medium storage box (7) thus complete circulation,
Described ice making loop is ice storage barrel (11), control valve II (10), the closed circuit that gas-liquid mixing pump (9) and subcooler (8) are connected in sequence, wherein, to be sent in subcooler (8) by gas-liquid mixing pump (9) through control valve II (10) after recirculated water is flowed out by ice storage barrel (11) and to carry out heat exchange release heat with the refrigerating medium in refrigerating medium closed circuit and become temperature lower than the subcooled water of 0 DEG C, subcooled water becomes mixture of ice and water and enters into ice storage barrel (11) after cold decontrol, water in ice storage barrel (11) is extracted by gas-liquid mixing pump (9) and again participates in circulation, and the ice slurry in ice storage barrel (11) is fed in refrigerating circuit and participates in refrigeration cool-down,
The closed circuit that described refrigerating circuit is ice storage barrel (11), control valve III (12), centrifugal pump II (13) and air conditioning terminal (14) connect and compose successively, wherein, ice slurry in ice storage barrel (11) drives its heat entering into air conditioning terminal (14) the absorption external world to reach the effect of refrigeration by centrifugal pump II (13) after control valve III (12), and ice slurry returns the circulation participating in ice making loop in ice storage barrel (11) be melted into water after air conditioning terminal (14) heat absorption after again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410463488.1A CN104214866B (en) | 2014-09-12 | 2014-09-12 | Unit-type ice storage air conditioning system |
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| CN201410463488.1A CN104214866B (en) | 2014-09-12 | 2014-09-12 | Unit-type ice storage air conditioning system |
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| CN104214866A true CN104214866A (en) | 2014-12-17 |
| CN104214866B CN104214866B (en) | 2017-05-24 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106958898A (en) * | 2017-04-28 | 2017-07-18 | 广州中臣埃普科技有限公司 | A kind of cold accumulation air-conditioner ice-reserving heat release case and its cold-storage method |
| CN107062726A (en) * | 2017-05-19 | 2017-08-18 | 佛山市顺德区金舵空调冷冻设备有限公司 | A kind of energy-conserving and environment-protective ice machine |
| CN107388667A (en) * | 2017-08-22 | 2017-11-24 | 中国科学院广州能源研究所 | A kind of new ice slurry preparation facilities and preparation method thereof |
| CN108800692A (en) * | 2018-07-02 | 2018-11-13 | 张正元 | A kind of full-liquid type ice-making system and its control method |
| CN109812898A (en) * | 2019-03-14 | 2019-05-28 | 梁培森 | A kind of refrigeration ice storage system on air-conditioning |
| CN110486874A (en) * | 2019-03-14 | 2019-11-22 | 梁培森 | A kind of refrigerator type air-cooler |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3388931B2 (en) * | 1995-03-15 | 2003-03-24 | 東芝キヤリア株式会社 | Ice storage air conditioning system |
| CN2551912Y (en) * | 2002-05-17 | 2003-05-21 | 清华大学 | Integrated ice storage refrigerator set |
| CN201003824Y (en) * | 2006-11-10 | 2008-01-09 | 中国科学院广州能源研究所 | Ice cold-storage air-conditioning device |
| CN101334203B (en) * | 2008-08-04 | 2010-06-02 | 龙涛 | Method for enhancing cold-storage density of cold storage air conditioner system and cold storage air conditioner system |
| CN101629771B (en) * | 2009-08-13 | 2010-09-01 | 浙江大学 | Gas direct contact type ice slurry preparation system |
| CN204084702U (en) * | 2014-09-12 | 2015-01-07 | 河南科技大学 | A kind of modular ice-storage air-conditioning system |
-
2014
- 2014-09-12 CN CN201410463488.1A patent/CN104214866B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106958898A (en) * | 2017-04-28 | 2017-07-18 | 广州中臣埃普科技有限公司 | A kind of cold accumulation air-conditioner ice-reserving heat release case and its cold-storage method |
| CN107062726A (en) * | 2017-05-19 | 2017-08-18 | 佛山市顺德区金舵空调冷冻设备有限公司 | A kind of energy-conserving and environment-protective ice machine |
| CN107388667A (en) * | 2017-08-22 | 2017-11-24 | 中国科学院广州能源研究所 | A kind of new ice slurry preparation facilities and preparation method thereof |
| CN108800692A (en) * | 2018-07-02 | 2018-11-13 | 张正元 | A kind of full-liquid type ice-making system and its control method |
| CN109812898A (en) * | 2019-03-14 | 2019-05-28 | 梁培森 | A kind of refrigeration ice storage system on air-conditioning |
| CN110486874A (en) * | 2019-03-14 | 2019-11-22 | 梁培森 | A kind of refrigerator type air-cooler |
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| CN104214866B (en) | 2017-05-24 |
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Granted publication date: 20170524 Termination date: 20170912 |