CN102901160A - Cold water storage air conditioning system - Google Patents
Cold water storage air conditioning system Download PDFInfo
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- CN102901160A CN102901160A CN2011102115538A CN201110211553A CN102901160A CN 102901160 A CN102901160 A CN 102901160A CN 2011102115538 A CN2011102115538 A CN 2011102115538A CN 201110211553 A CN201110211553 A CN 201110211553A CN 102901160 A CN102901160 A CN 102901160A
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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 cold water storage air conditioning system comprising a layered water storage tank, a primary refrigerator, a secondary refrigerator, a cold storage pump and an air conditioning device. An upper warm water access port of the layered water storage tank is connected with two branches, one branch is connected with a water return port of the air conditioning device while the other branch is connected with an inlet of the cold storage pump, a lower cold water access port of the layered water storage tank is connected with two branches, one branch is connected with a water inlet of the air conditioning device while the other branch is connected with an outlet of the secondary refrigerator, an outlet of the cold storage pump is connected with an inlet of the primary refrigerator, and an outlet of the primary refrigerator is serially connected with an inlet of the secondary refrigerator. The cold water storage air conditioning system enables the volume of the water storage tank to be reduced greatly, and the occupied area is reduced, so that peak averting for electricity saving of cold water storage is more beneficial, electricity cost is lowered for enterprises, and the cold water storage air conditioning system is beneficial to application and popularization of cold water storage.
Description
Technical field
The present invention relates to a kind of air-conditioning system, particularly a kind of water chilling air conditioning system.
Background technology
Along with the development of modern industry and the raising of living standards of the people, the application of air-conditioning is more and more extensive, and its power consumption is also increasing, so that the poor increasing of power system peak load, load rate of grid increases, and electrical network has to carry out power cuts to limit consumption, is seriously restricting industrial production.One of effective way that addresses this problem is to be applied to Cool Storage Technology, with air conditioning electricity from daytime the peak period transfer to the night dip phase, balanced urban distribution network load, reach the purpose of avoiding apex filling vale, the principle of Cool Storage Technology, in brief, to utilize remain in operation refrigeration machine refrigeration of the unnecessary charged power of paddy of electrical network at night, and store, the refrigeration service is provided during peak of power consumption by day, thereby avoids freezing the contention peak power.
The water chilling air conditioning system is that the unnecessary paddy section electric power of electrical network at night is combined cold-storage with the sensible heat of water, and the peak of power consumption period uses the cryogenic freezing water extraction of saving and preserve cold for idle call by day.The water cold-storage is to utilize the sensible heat of water to come cold-storage, and the advantage of water chilling air conditioning system is take water as cool storage material, need not other cool storage mediums, can save cool storage medium expense and energy consumption; And can use conventional handpiece Water Chilling Units, and also can use the absorption refrigeration unit, the selective and usability area of equipment is wide, and it is moved under economic scene, and is good in economic efficiency.Chilled water storage system is a kind of comparatively mode of the economic a large amount of colds of storage.But the shortcoming of chilled water storage system is the sensible heat that the water cold-storage only utilizes water, and storage density of cold is low.Under same cold storage capacity condition, the catch basin volume is larger, is subject to the steric requirements restriction during use.
Fig. 1 is conventional water chilling air conditioning system pie graph, as shown in the figure, conventional water chilling air conditioning system comprises layer-stepping catch basin 1, refrigeration machine 2, cold-storage pump 3 and aircondition 4, described layer-stepping catch basin 1 top warm water is imported and exported and is connected two branch roads, one the tunnel connects the water return outlet of described aircondition 4, and another road connects the import of described cold-storage pump 3; Described layer-stepping catch basin 1 bottom cold water is imported and exported and is connected two branch roads, and one the tunnel connects the water inlet of described aircondition 4, and another road connects the outlet of described refrigeration machine 2; The outlet of described cold-storage pump 3 is connected with the import of described refrigeration machine 2; Described aircondition 4 adopts axial flow blower 5 air-supplies, and described aircondition 4 provides the air-conditioning service for workshop.Described refrigeration machine 2 can be described layer-stepping catch basin 1 cold is provided, and also can be aircondition 4 cold is provided.Described layer-stepping catch basin 1 is based on the water of different temperatures in the catch basin and realizes natural layering owing to there is the principle of thermal stratification phenomenon in density contrast.
Adopt above-mentioned water chilling air conditioning system, the water temperature on described layer-stepping catch basin 1 top is generally 22～25 ℃, imports and exports the water that extracts with cold-storage pump 3 from described layer-stepping catch basin 1 top warm water and squeezes into the refrigeration machine 2 after the cooling to import and export to be pressed in the described layer-stepping catch basin 1 from described layer-stepping catch basin 1 bottom cold water and store for peak period.Owing to adopt the one-level kind of refrigeration cycle, the water temperature of cooling off by described refrigeration machine 2 is generally 15～17 ℃, and the turnover water temperature of described layer-stepping catch basin 1 is more or less the same, and cold-storage is indifferent, therefore needs to adopt the catch basin 1 of large volume to store water.In addition, owing to adopt axial flow blower 5 air-supplies, general humidification WGR is 0.4～0.5, and the process WGR of drying is 0.6～1.0, and water consumption is large.Adopt conventional water chilling air conditioning system, to an enterprise that six workshops are arranged, used 8～10 hours, need cold 1,500,000 kilocalories/time, it adopts conventional water chilling air conditioning system, its catch basin capacity will reach 2000～2500 cubic metres, and its cost of large like this catch basin and floor space are all very large, are unfavorable for applying.
Summary of the invention
Purpose of the present invention provides a kind of water chilling air conditioning system, reducing the volume of catch basin, thereby reduces system's floor space.
For achieving the above object, water chilling air conditioning system of the present invention, comprise layer-stepping catch basin, first order refrigeration machine, second level refrigeration machine, cold-storage pump and aircondition, described layer-stepping catch basin top warm water is imported and exported and is connected two branch roads, one the tunnel connects the water return outlet of described aircondition, and another road connects the import of described cold-storage pump; Described layer-stepping catch basin bottom cold water is imported and exported and is connected two branch roads, and one the tunnel connects the water inlet of described aircondition, and another road connects the outlet of described second level refrigeration machine; Described cold-storage delivery side of pump is connected with the import of described first order refrigeration machine; The import of the outlet of described first order refrigeration machine and described second level refrigeration machine is connected in series.
Described aircondition adopts the spray axial fan air-supply.
Adopt water chilling air conditioning system of the present invention, the volume of catch basin is greatly reduced, floor space reduces, thereby the peak of keeping away that more is conducive to the water cold-storage allows electricity, reduces the business electrical cost, is conducive to promoting the use of of water cold-storage.
Description of drawings
Fig. 1 is conventional water chilling air conditioning system pie graph;
Fig. 2 is water chilling air conditioning system pie graph of the present invention.
The specific embodiment
Fig. 2 is water chilling air conditioning system pie graph of the present invention, as shown in the figure, water chilling air conditioning system of the present invention comprises layer-stepping catch basin 10, first order refrigeration machine 21, second level refrigeration machine 22, cold-storage pump 30 and aircondition 40, described layer-stepping catch basin 10 top warm water are imported and exported and are connected two branch roads, one the tunnel connects the water return outlet of described aircondition 40, and another road connects the import of described cold-storage pump 30; Described layer-stepping catch basin 10 bottom cold water are imported and exported and are connected two branch roads, and one the tunnel connects the water inlet of described aircondition 40, and another road connects the outlet of described second level refrigeration machine 22; The outlet of described cold-storage pump 30 is connected with the import of described first order refrigeration machine 21; The import of the outlet of described first order refrigeration machine 21 and described second level refrigeration machine 22 is connected in series.
Compare with the water chilling air conditioning system of routine, water chilling air conditioning system of the present invention adopts described first order refrigeration machine 21 and 22 series connection of second level refrigeration machine, after 22～25 ℃ water process first order refrigeration machine 21 and second level refrigeration machine 22 refrigeration, water temperature can be reduced to 5～8 ℃, greatly improve the cold storage capacity of described layer-stepping catch basin 10, and the temperature difference of Inlet and outlet water is large, and it is also larger that the proportion of water differs, and more is conducive to the layered effect of layer-stepping catch basin 10.
Described aircondition 40 adopts spray axial fan 41 air-supplies.Adopt spray axial fan, cold water directly enters by spray axial fan impeller wheel an ancient measure, makes air directly contact atomizing with water, thereby has increased contact area, has improved the efficiency of damp and hot exchanging of air and water.Adopt spray axial fan, the humidification WGR is less than 0.1, and the process of drying WGR needs cool water quantity to reduce at double less than 0.4.
Described aircondition 40 can to manufacturing enterprise, can be equipped with a described aircondition 40 by each workshop for a plurality of, and a plurality of described aircondition 40 is parallel with one another.
Water chilling air conditioning system of the present invention is when cold-storage, importing and exporting the water temperature that extracts with cold-storage pump 30 from described layer-stepping catch basin 10 top warm water is that 22～25 ℃ water is squeezed into cooling the first order refrigeration machine 21, its cooling water outlet temperature is 15～17 ℃, second level refrigeration machine 22 through series connection cools off again, cooling water temperature can reach 5～8 ℃, and refrigeration machine 22 water outlets in the second level are imported and exported to be pressed in the described layer-stepping catch basin 1 from described layer-stepping catch basin 1 bottom cold water and stored for peak period.
Water chilling air conditioning system of the present invention is being used when cold, the cooling water of described layer-stepping catch basin 10 bottoms, utilize the potential energy of described layer-stepping catch basin 10, cold water is imported and exported the spray axial fan 41 that is pressed into described aircondition 40 from described layer-stepping catch basin 10 bottom cold water, can also replenish spray by water pump through the cold water after the spraying, further reduce the workshop temperature, meanwhile 22～25 ℃ air-conditioning backwater is returned the top of described layer-stepping catch basin 10, for next time cooling.
Water chilling air conditioning system of the present invention is combined with operating mode and workshop situation, can satisfy four kinds of operating modes: 1, single cold-storage; 2, alone cold; 3, first order refrigeration machine and the direct cooling of second level refrigeration machine; 4, cooling again when cold-storage.
What the aircondition 40 of water chilling air conditioning system of the present invention used is through the two-stage cryocooled, water temperature can reach 5～8 ℃ cold water, and adopt the little spray axial fan 41 of WGR to carry out the wet exchange of heat, so that the volume of described layer-stepping catch basin 10 only needs 850 cubic metres just can use 8～10 hours for 6 workshops, greatly reduce the volume of catch basin, reduced floor space.
Claims (2)
1. water chilling air conditioning system, it is characterized in that, comprise layer-stepping catch basin, first order refrigeration machine, second level refrigeration machine, cold-storage pump and aircondition, described layer-stepping catch basin top warm water is imported and exported and is connected two branch roads, one the tunnel connects the water return outlet of described aircondition, and another road connects the import of described cold-storage pump; Described layer-stepping catch basin bottom cold water is imported and exported and is connected two branch roads, and one the tunnel connects the water inlet of described aircondition, and another road connects the outlet of described second level refrigeration machine; Described cold-storage delivery side of pump is connected with the import of described first order refrigeration machine; The import of the outlet of described first order refrigeration machine and described second level refrigeration machine is connected in series.
2. water chilling air conditioning system as claimed in claim 1 is characterized in that, described aircondition adopts the spray axial fan air-supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102115538A CN102901160A (en) | 2011-07-27 | 2011-07-27 | Cold water storage air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102115538A CN102901160A (en) | 2011-07-27 | 2011-07-27 | Cold water storage air conditioning system |
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| Publication Number | Publication Date |
|---|---|
| CN102901160A true CN102901160A (en) | 2013-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011102115538A Pending CN102901160A (en) | 2011-07-27 | 2011-07-27 | Cold water storage air conditioning system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329749A (en) * | 2014-09-17 | 2015-02-04 | 中山市蓝水能源科技发展有限公司 | Chilled water storage refrigeration device |
| CN106969452A (en) * | 2017-05-12 | 2017-07-21 | 上海碳誉节能环保科技有限公司 | A kind of air conditioner water cold accumulation system |
-
2011
- 2011-07-27 CN CN2011102115538A patent/CN102901160A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329749A (en) * | 2014-09-17 | 2015-02-04 | 中山市蓝水能源科技发展有限公司 | Chilled water storage refrigeration device |
| CN106969452A (en) * | 2017-05-12 | 2017-07-21 | 上海碳誉节能环保科技有限公司 | A kind of air conditioner water cold accumulation system |
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Application publication date: 20130130 |