CN101606806A - Ice slurry cool storage refrigerated display cabinet - Google Patents

Ice slurry cool storage refrigerated display cabinet Download PDF

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Publication number
CN101606806A
CN101606806A CNA2009100413234A CN200910041323A CN101606806A CN 101606806 A CN101606806 A CN 101606806A CN A2009100413234 A CNA2009100413234 A CN A2009100413234A CN 200910041323 A CN200910041323 A CN 200910041323A CN 101606806 A CN101606806 A CN 101606806A
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CN
China
Prior art keywords
ice
ice slurry
refrigerator
storage tank
heat exchanger
Prior art date
Application number
CNA2009100413234A
Other languages
Chinese (zh)
Inventor
肖睿
冯自平
宋文吉
黄冲
何世辉
Original Assignee
中国科学院广州能源研究所
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 中国科学院广州能源研究所 filed Critical 中国科学院广州能源研究所
Priority to CNA2009100413234A priority Critical patent/CN101606806A/en
Publication of CN101606806A publication Critical patent/CN101606806A/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
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/90Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
    • Y02A40/963Off-grid food refrigeration

Abstract

The object of the present invention is to provide a kind of efficiency height, get low, the refrigerator display case that can not contaminated food products of cold temperature.This refrigerator display case comprises refrigerator cabinet body and control device, and the refrigerator cabinet is provided with heat exchanger on one's body, especially, comprises that also the ice slurry generates unit and Ice Storage Tank; The ice slurry generates and is connected with suction line and ice slurry pipeline between unit and the Ice Storage Tank; Be connected with water pumping pipe road and water return pipeline between Ice Storage Tank and the heat exchanger, water pumping pipe is equipped with water pump on the road; Control device is connected with the electric circuit that water pump, ice slurry generate on the unit by the control cable.Refrigerator display case of the present invention has: get that cold temperature is low, good refreshing effect, efficiency height, need not to defrost running, refrigeration quality height, load responding speed is fast, the place restriction is little, floor space is little etc. advantage.

Description

Ice slurry cool storage refrigerated display cabinet
Technical field
The present invention relates to a kind of refrigerator display case, relate in particular to a kind of ice slurry cool storage refrigerated display cabinet.
Background technology
Frozen and refrigerated display case is the equipment of energy consumption maximum in the supermarket, and not only quantity is many but also long operational time, produces huge operating cost thus.According to statistics, one 1500-3000 square metre supermarket, its energy consumption is equivalent to one 10000 square metres office building! And wherein the energy consumption the best part is exactly a refrigerating equipment, accounts for more than 50% of whole supermarket energy consumption.Therefore, research and development energy-saving freezing refrigerating equipment, significant to energy-saving and emission-reduction.
Existing frozen and refrigerated display case has two kinds of patterns: a kind of is free-standing refrigerator, and independent refrigeration system is arranged, and condenser and evaporimeter all are integrated in the showcase.For this refrigerator, the heat of condenser must be discharged into indoor, increases considerably the load of supermarket air-conditioning unit thus, causes huge energy waste.Therefore, increasing large supermarket adopts central cooling pattern, the just pattern of many refrigerators of an off-premises station band.Like this, the heat of condenser directly is discharged into outdoor, reduces air conditioner load thus significantly.Therefore, central refrigerating is the main developing direction of frozen and refrigerated display case.
In the central refrigerating refrigerator, adopt ice storage technology abroad more and more.Its basic principle is: ice-melt is put coldly during utilizing refrigeration machine ice making cold-storage, daytime to reopen after a cessation of business when stop business night, is the direct or indirect cooling of frozen and refrigerated display case, reduces the operating cost of frozen and refrigerated display case thus significantly, and energy-saving benefit is very remarkable.The change of the life pattern that causes along with the enforcement of the popularization of China's time-of-use tariffs and urbanization, ice cold-storage refrigerator will produce huge market.
Compare with existing refrigerator display case, the ice cool storage refrigerated display cabinet has following outstanding advantage:
(1) operating cost is low: adopt night dip electric power cold-storage, make full use of time-of-use tariffs, save the operating cost in supermarket thus significantly;
(2) system energy efficiency height: night, because outside air temperature is lower, the condensation temperature of unit was also low during ice making operation, and refrigeration efficiency increases substantially;
(3) cold insulation is effective: adopt the direct cooling of non freezing solution, even still can guarantee cooling under refrigeration machine breaks down situation, fully guaranteed the quality of REFC thus;
(4) greenhouse gas emission is few: compare with free-standing refrigerator, reduce the charging amount of refrigeration machine significantly, effectively reduce greenhouse gas emission, realize environmental protection.
At present, the main manufacturer of refrigerator display case comprises: Tokyo Electric Power, Yamato, Sanyo, Daikin, Hitachi etc., and its ice cold-storage refrigerator mainly contains two class technology:
One) the indirect cooling pattern of cold storage capacity: as shown in Figure 1, this type of technology does not change the design of evaporimeter in the existing refrigerator display case, and refrigerator display case adopts cold-producing medium evaporation cooling.Utilize the ice making of showcase refrigeration machine during stopping business night, utilize the condenser of the cold storage capacity cooling showcase at night during reopening after a cessation of business daytime, increase substantially refrigeration efficiency thus, and effectively reduce operating cost.The advantage of this technology is the design that need not to change the refrigerator display case body.Shortcoming is the condenser that needs design new, uses with original condenser is parallel.Simultaneously, because condenser side has secondary heat exchange, reduced the efficiency of cold-storage and ice-melt thus; The more important thing is that the evaporator temperature of showcase just in time is in the temperature range that is easy to frosting, need continuous defrost, had a strong impact on the storage quality of REFC thus.
Two, the direct cooling pattern of cold storage capacity: as shown in Figure 2, in this technology, night, refrigeration machine was produced non freezing solution, and non freezing solution enters the Ice Storage Tank ice making; It is cold to utilize daytime non freezing solution and water circulating pump directly to get from Ice Storage Tank, and enters the refrigerator display case cooling.The advantage of this technology is that indoor showcase need not refrigerating evaporator, does not have the problem of frosting and defrost; And, when night cold storage capacity satisfy daytime during the cooling demand, need not to open refrigeration machine daytime, can obtain energy-saving benefit thus far above the indirect cooling of cold storage capacity.But the shortcoming of this system is to adopt the coil pipe ice-reserving, and the temperature of non freezing solution is minimum can only to be reached about 4 ℃, can't obtain 2-8 ℃ the storage temperature that refrigerator needs thus; Simultaneously, because non freezing solution enters refrigerator display case, might cause food pollution because of leakage
This shows, more than two kinds of technology all have defective.Comparatively speaking, adopt the pattern of the direct cooling of cold storage capacity not only can simplify system, and the refrigeration requirement on daytime all can be transferred to night, can obtain maximum energy-saving benefit thus.Yet as previously mentioned, to be that the temperature of non freezing solution is minimum can only reach about 4 ℃ the shortcoming of the direct cooling of cold storage capacity, can't obtain 2-8 ℃ the storage temperature that refrigerator needs; Simultaneously, non freezing solution directly enters refrigerator display case, thus may be because of its leakage cause food pollution, and this is the several deadly defects during this technology is promoted.
Summary of the invention
The object of the present invention is to provide a kind of efficiency height, get low, the ice slurry cool storage refrigerated display cabinet that can not contaminated food products of cold temperature.
The present invention is achieved through the following technical solutions:
Ice slurry cool storage refrigerated display cabinet comprises refrigerator cabinet body and control device, and the refrigerator cabinet is provided with heat exchanger on one's body, especially, comprises that also the ice slurry generates unit and Ice Storage Tank; The ice slurry generates and is connected with suction line and ice slurry pipeline between unit and the Ice Storage Tank; Be connected with water pumping pipe road and water return pipeline between Ice Storage Tank and the heat exchanger, water pumping pipe is equipped with water pump on the road; Control device is connected with the electric circuit that water pump, ice slurry generate on the unit by the control cable.
Operation principle of the present invention is as follows: ice slurry generation at night unit is drawn into the water of Ice Storage Tank bottom in the unit, and water is formed the form of cotton-shaped ice crystal, is stored in and realizes cold-storage in the Ice Storage Tank.Get daytime when cold, the heat exchanger that the direct pump of frozen water of pump handle Ice Storage Tank bottom advances refrigerator cabinet body is to carry out cooling, and the backwater behind the cooling returns Ice Storage Tank, is cooled to cooling temperature again.
In addition, a heat exchanger can be set respectively in the upper and lower of refrigerator cabinet body.The heat exchanger on top is used to blow out cold wind, forms the low temperature environment that food is showed usefulness; The heat exchanger of bottom is used for the refrigeration of interim foodstuff storing.
The present invention adopts low-temperature cold water directly to be the refrigerator cooling, increases substantially the refrigerating capacity of refrigerator thus, and has effectively simplified the cooling pattern of refrigerator.Ice slurry cold storage adopts the low temperature pure water directly to supply refrigerator, and its temperature maintenance has not only increased substantially the refrigeration performance of refrigerator display case thus about+1 ℃, and adopts pure water, has eliminated the food security hidden danger of bringing because of the non freezing solution leakage fully.
Adopt fluidization ice slurry cold storage technology, reduced the fluctuation of refrigerator temperature significantly, effectively improved the load responding performance of refrigerator.Existing in the world ice storage technology mainly contains 3 kinds, comprising: ice hockey, coil pipe and dynamic ice cold-storage.Wherein, have only dynamic ice cold-storage to adopt pure water ice-reserving, pure water circulation to get cold.Not only avoided the use non freezing solution thus fully, and got cold temperature and approach zero degree, its refrigeration performance is much better than non freezing solution.Adopt the refrigerator display case of dynamic ice slurry cold storage to have outstanding advantages such as getting cold temperature is low, good refreshing effect, whole efficiency height, load responding speed is fast, the place restriction is little, its overall performance is far above the external normal coil pipe cold-storage technology that adopts.
To sum up, advantage of the present invention is:
1) gets low, the good refreshing effect of cold temperature;
2) whole efficiency increases substantially;
3) need not defrosting running, the refrigeration quality increases substantially;
4) load responding speed is fast;
5) the place restriction is little, floor space is little.
Description of drawings
Fig. 1 is a prior art system structural representation one;
Fig. 2 is a prior art system structural representation two;
Fig. 3 is the structural representation of the embodiment of the invention.
Description of reference numerals: 1-refrigerator cabinet body; The 2-control device; 3-ice slurry generates unit; The 4-Ice Storage Tank; The 5-water pump; 6-water pumping pipe road; The 7-water return pipeline; The 8-suction line; 9-ice slurry pipeline; 10-ice slurry jet pipe.
The specific embodiment
Below in conjunction with drawings and Examples content of the present invention is described further.
As shown in Figure 3, the refrigerator display case in the present embodiment comprises that refrigerator cabinet body 1, control device 2, ice slurry generate unit 3, Ice Storage Tank 4 and water pump 5.
Refrigerator cabinet body 1 can be the pattern of existing various refrigerator display cases.In the inside of refrigerator cabinet body 1 first heat exchanger and second heat exchanger are housed, lay respectively at the upper and lower of refrigerator cabinet body, the heat exchanger on top is used to blow out cold wind, forms the low temperature environment that food is showed usefulness; The heat exchanger of bottom is used for the refrigeration of interim foodstuff storing.Heat exchanger provides the heat exchange condition of the outside cooling of refrigerant medium.Two heat exchangers have medium input interface and medium output interface separately, after the water pumping pipe road 6 that is communicated with Ice Storage Tank 4 bottoms is connected to water pump 5, be connected respectively to the medium input interface of two heat exchangers again, like this, water pump 5 advances heat exchanger to carry out cooling with the low temperature water pump of Ice Storage Tank 4 bottoms; The medium output interface of first heat exchanger and second heat exchanger all is connected water return pipeline 7, and water return pipeline 7 protrudes into the top of Ice Storage Tank 4, the water of the heat exchanger of flowing through can be sprayed on the ice slurry in the Ice Storage Tank 4.
There is suction line 8 that Ice Storage Tank 4 and the input interface that the ice slurry generates unit 3 are linked together in addition in Ice Storage Tank 4 bottoms; And the output interface of ice slurry generation unit 3 is connected on the ice slurry pipeline 9.Ice slurry pipeline 9 puts in the Ice Storage Tank 4, and ice slurry pipeline 9 is positioned at a section of Ice Storage Tank 4 and some mouths of pipe ice up is set starches jet pipe 10.
The electric circuit of water pump 5 and ice slurry generation unit 3 is connected on the control device 2.The user can be provided with the temperature of showcase by control device 2, and the operating condition of control water pump 5 and ice slurry generation unit 3, comprises start-up time and duration etc.
By control device is set, allow the ice slurry generate unit and after closing in the supermarket, promptly enter ice slurry making state, and keep the ice slurry amount of having.After the supermarket reopens after a cessation of business, start water pump, the chilled water that becomes after the ice slurry can being melted pumps into immediately and carries out cooling in the showcase.The water of heat exchanger of the flowing through temperature rise of being heated is sprayed on the ice slurry from water return pipeline, and cooling circulates with this again.In the process of showcase cooling, if condition of overhigh temperature in the cold-storage groove occurs, then control device will start ice slurry generation unit, and the melt water in the cold-storage groove is made ice slurry cooling again in Ice Storage Tank.
What this specification was enumerated is better embodiment of the present invention only, and all equivalent technologies conversion of being done under operation principle of the present invention and thinking all are considered as protection scope of the present invention.

Claims (3)

1, ice slurry cool storage refrigerated display cabinet comprises refrigerator cabinet body and control device, and the refrigerator cabinet is provided with heat exchanger on one's body, it is characterized in that: comprise that also the ice slurry generates unit and Ice Storage Tank; The ice slurry generates and is connected with suction line and ice slurry pipeline between unit and the Ice Storage Tank; Be connected with water pumping pipe road and water return pipeline between Ice Storage Tank and the heat exchanger, water pumping pipe is equipped with water pump on the road; Control device is connected with the electric circuit that water pump, ice slurry generate on the unit by the control cable.
2, ice slurry cool storage refrigerated display cabinet as claimed in claim 1 is characterized in that: the upper and lower of refrigerator cabinet body is respectively equipped with a heat exchanger.
3, ice slurry cool storage refrigerated display cabinet as claimed in claim 1 is characterized in that: ice slurry pipeline is positioned at a section of Ice Storage Tank and is provided with some mouths of pipe ice slurry jet pipe up.
CNA2009100413234A 2009-07-23 2009-07-23 Ice slurry cool storage refrigerated display cabinet CN101606806A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2009100413234A CN101606806A (en) 2009-07-23 2009-07-23 Ice slurry cool storage refrigerated display cabinet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2009100413234A CN101606806A (en) 2009-07-23 2009-07-23 Ice slurry cool storage refrigerated display cabinet

Publications (1)

Publication Number Publication Date
CN101606806A true CN101606806A (en) 2009-12-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2009100413234A CN101606806A (en) 2009-07-23 2009-07-23 Ice slurry cool storage refrigerated display cabinet

Country Status (1)

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CN (1) CN101606806A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105640164A (en) * 2015-12-30 2016-06-08 西安交通大学 Ice storage cold fresh display cabinet
CN109724356A (en) * 2019-01-15 2019-05-07 李翠芝 Central refrigeration-type freezing and refrigeration cabinet group

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN109724356A (en) * 2019-01-15 2019-05-07 李翠芝 Central refrigeration-type freezing and refrigeration cabinet group

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Open date: 20091223