CN202630267U - Direct cold supply type water cold storage air conditioning system - Google Patents
Direct cold supply type water cold storage air conditioning system Download PDFInfo
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- CN202630267U CN202630267U CN2012201399373U CN201220139937U CN202630267U CN 202630267 U CN202630267 U CN 202630267U CN 2012201399373 U CN2012201399373 U CN 2012201399373U CN 201220139937 U CN201220139937 U CN 201220139937U CN 202630267 U CN202630267 U CN 202630267U
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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
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Abstract
The utility model discloses a direct cold supply type water cold storage air conditioning system which comprises a refrigeration main machine, a cold water storage tank, a cold storage pump, a cold supply pump, an air conditioning tail end and a bypass pipe, wherein an inlet of the refrigeration main machine is connected with an outlet of the cold storage pump, the outlet of the refrigeration main machine is connected with an electrically operated valve F2 through a pipeline and is divided into two branch circuits after passing the electrically operated valve F2, one branch circuit is an air conditioning tail end branch circuit, and the other branch circuit is a cold water storage tank branch circuit. The air conditioning tail end and the cold water storage tank are connected with an inlet pipeline of the cold storage pump, an electric control valve V6 is arranged on the inlet pipeline of the cold storage pump, the air conditioning tail end branch circuit is further connected with the bypass pipe in parallel, and an electric control valve V5 is arranged on the bypass pipe. The direct cold supply type water cold storage air conditioning system reduces return water temperature of a refrigeration unit, enables the refrigeration unit to be unloaded to achieve operation with the best energy efficiency, improves efficiency of the refrigeration unit, can wholly improve system efficiency, fully uses cold quantity stored by a water cold storage device, and reduces operation cost in a greatest degree.
Description
Technical field
The utility model relates to water chilling air conditioning system technical field, is a kind of technology of direct cooling formula water chilling air conditioning system specifically.
Background technology
The water cold accumulation air-conditioner is meant that utilizing valley power that cold is stored in the cold-storage tank is in the cold-storage tank, a kind of technology that when peak of power consumption, discharges cold again.Along with the positive enforcement of power department time-of-use tariffs, the water cold-storage is used as the cold-storage mode of economy more and more widely, and water cold-storage technology is also increasingly mature.
Direct cool water supply cool-storage system uses comparatively general in the air conditioner water cold accumulation system, and directly the cool water supply cool-storage system is just like Chinese patent 200710028741, and as shown in Figure 1, heavy line partly is an operating loop.There is following problem in system shown in Figure 1:
When 1) the mesolimnion temperature in the cold-storage tank is higher than design temperature T1, can not utilize again, and cause the mesolimnion that is lower than air conditioning terminal 5 return water temperatures not use up, reduce the utilization rate of cold-storage tank;
2) can't improve the refrigeration host computer efficiency.
The utility model content
The purpose of the utility model provides a kind of energy-conserving and environment-protective; Can overall improved system the direct cooling formula water chilling air conditioning system of efficient, effectively improve the utilization rate of cold-storage tank, simultaneously; Through to the thermoclinic utilization in the cold-storage tank, improve the efficiency of refrigeration host computer.
The utility model is realized through following technical scheme.
A kind of direct cooling formula water chilling air conditioning system; Comprise refrigeration host computer, cold-storage tank, cold-storage pump, cooling pump and air conditioning terminal; The import of refrigeration host computer is connected with the cold-storage delivery side of pump; It is characterized in that: said direct cooling formula water chilling air conditioning system also comprises a bypass pipe, and the outlet of said refrigeration host computer is connected and behind motor-driven valve F2, is divided into two branch roads through pipeline with motor-driven valve F2, branch road be by cooling pump and air conditioning terminal be connected to form the air-conditioning end branch; Another branch road be by motor-driven valve F1 and cold-storage tank be connected to form cold-storage tank branch road; Air conditioning terminal, cold-storage tank all are connected with the inlet ductwork of cold-storage pump, on the inlet ductwork of cold-storage pump, are provided with electric control valve V6
One end of said bypass pipe is connected on the inlet ductwork of the cold-storage pump between said electric control valve V6 and the cold-storage pump; The other end of bypass pipe is connected on the pipeline between said cold-storage tank and the motor-driven valve F1; On bypass pipe, be provided with electric control valve V5; Temperature sensor T2 is installed on the inlet ductwork of cold-storage pump, and temperature sensor T2 is connected with electric control valve V5 signal.
The two ends of said air conditioning terminal branch road are provided with communicating pipe; Temperature sensor T1 and electric control valve V4 are installed on cooling pump intake piping road; Temperature sensor T1 is near the inlet of cooling pump; Wherein the end of communicating pipe is connected on the pipeline of temperature sensor T1 and electric control valve V4, and electric control valve V3 was installed on said communicating pipe, and electric control valve V3, electric control valve V4 all are connected with temperature sensor T1 signal.
Setting through bypass pipe (6); The loop structure that connects into by refrigeration host computer (1), cold-storage tank (2), cold-storage pump (3), electric control valve V5, electric control valve V6, motor-driven valve F2; When closing motor-driven valve F1, constitute the cooling loop of connecting of cold-storage tank (2) and refrigeration host computer (1).
The utility model compared with prior art has the following advantages.
Adopt the described technical scheme of the utility model; In system, be provided with the bypass pipe that mesolimnion in the cold-storage tank utilizes, make chilled water in the natural layering cold-storage tank mesolimnion scope, at the non-electricity low-valley interval; Mode through direct hybrid air-conditioning end system backwater; Reduce the return water temperature of refrigeration unit, make refrigeration unit be offloaded to best efficiency operation, reach the purpose that improves chiller efficiency; Simultaneously, the electric power low ebb phase institute's cold storage capacity in the cold-storage tank mesolimnion also can be fully used in the non-electricity low ebb phase, had improved the utilization rate of water cold accumulation device.The said system of the utility model ability overall improved system efficient is utilized water cold accumulation device institute cold storage capacity fully, at utmost reduces operating cost.
Description of drawings
Fig. 1 is the functional-block diagram of the direct cooling formula of prior art water chilling air conditioning system;
The functional-block diagram of the direct cooling formula of Fig. 2 the utility model water chilling air conditioning system;
The operation logic block diagram of the direct cooling formula of Fig. 3 the utility model water chilling air conditioning system.
The specific embodiment
Below in conjunction with accompanying drawing the direct cooling formula of the utility model water chilling air conditioning system is described in further detail.
Like Fig. 2, Fig. 3; The utility model comprises refrigeration host computer 1, cold-storage tank 2, cold-storage pump 3, cooling pump 4, air conditioning terminal 5 and a bypass pipe 6; The import of refrigeration host computer 1 is connected with the outlet of cold-storage pump 3; The outlet of refrigeration host computer 1 is connected and behind motor-driven valve F2, is divided into two branch roads through pipeline with motor-driven valve F2; Article one, branch road be by cooling pump 4 and air conditioning terminal 5 be connected to form the air-conditioning end branch, another branch road be by motor-driven valve F1 and cold-storage tank 2 be connected to form cold-storage tank branch road, air conditioning terminal 5, cold-storage tank 2 all are connected with the inlet ductwork of cold-storage pump 3; On the inlet ductwork of cold-storage pump 3, be provided with electric control valve V6; One end of bypass pipe 6 is connected on the inlet ductwork of the cold-storage pump 3 between said electric control valve V6 and the cold-storage pump 3, and the other end of bypass pipe 6 is connected on the pipeline between said cold-storage tank 2 and the motor-driven valve F1, on bypass pipe 6, is provided with electric control valve V5; Temperature sensor T2 is installed on the inlet ductwork of cold-storage pump 3, and temperature sensor T2 is connected with electric control valve V5 signal.
Two ends at the air conditioning terminal branch road are provided with communicating pipe; Be also referred to as the profit and loss pipe; Temperature sensor T1 and electric control valve V4 are installed on the entrance pipe of cooling pump 4, and temperature sensor T1 is near the inlet of cooling pump 4, and wherein the end of communicating pipe is connected on the pipeline of temperature sensor T1 and electric control valve V4; Electric control valve V3 was installed on said communicating pipe, and electric control valve V3, electric control valve V4 all are connected with temperature sensor T1 signal.
The operation method of the direct cooling formula of the utility model water chilling air conditioning system: through the setting of bypass pipe 6; The loop structure that connects into by refrigeration host computer 1, cold-storage tank 2, cold-storage pump 3, electric control valve V5, electric control valve V6, motor-driven valve F2; When closing motor-driven valve F1; Constitute the cooling loop of connecting of cold-storage tank 2 and refrigeration host computer 1, institute's cold storage capacities obtained utilizing in the non-electricity low ebb phase in the cold-storage tank 2, with the utilization rate of raising cold-storage tank 2.
As shown in Figure 3, heavy line partly is an operating loop.Release under the cold operation pattern at cold-storage tank 2; When being released into cold-storage tank 2 temperature and being higher than temperature sensor T1 design temperature T1, open cold-storage pump 3 and refrigeration host computer 1 this moment, open electric control valve V5, electric control valve V6 regulates; Close motor-driven valve F1; Regulate the water flow of cold-storage tank 2 again through electric control valve V5, electric control valve V6 jointly, make 2 water outlets of cold-storage tank and air conditioning terminal backwater be mixed to the design temperature T2 of temperature sensor T2, this moment, mixing temperature T2 was lower than the return water temperature of air conditioning terminal 5; Mixing water gets into refrigeration host computer 1 and is cooled to T1; Be delivered to air conditioning terminal 5 through cooling pump 4, make refrigeration host computer 1 be offloaded to efficient running status, improve the Energy Efficiency Ratio of refrigeration host computer 1.The said technical scheme of the utility model is innovated on Chinese patent 200710028741 bases, and the utility model has improved the utilization rate of cold-storage tank effectively, simultaneously, through to the thermoclinic utilization in the cold-storage tank, has improved the efficiency of refrigeration host computer.
More describe operation principle below in detail:
1) refrigeration host computer cold-storage operating mode: motor-driven valve F1, motor-driven valve F2 open, refrigeration host computer 1,3 operations of cold-storage pump.When cold-storage tank 2 cold-storage temperature reached, cold-storage finished.
2) cold-storage tank cooling operating mode: motor-driven valve F1 opens, and electric control valve V3 and electric control valve V4 regulate according to cooling temperature T1, to keep constant cooling temperature.Cooling pump 4 always supplies the pressure reduction of return pipe to carry out variable frequency adjustment according to the cooling loop, to reach energy-conservation effect.Release when being chilled to mesolimnion and surpassing cooling temperature T1 aspect when cold-storage tank 2, this operating mode stops.
3) mesolimnion utilizes operating condition fully: release being chilled to mesolimnion above cooling temperature T1 aspect when the cold-storage tank, move this pattern.Open cold-storage pump 3 and refrigeration host computer 1; Unlatching electric control valve V5, electric control valve V6 regulate, and close motor-driven valve F1, regulate the water flow of cold-storage tank 2 more jointly through electric control valve V5, electric control valve V6; Make 2 water outlets of cold-storage tank and air conditioning terminal backwater be mixed to the design temperature T2 of temperature sensor T2; This moment, mixing temperature T2 was lower than the return water temperature of air conditioning terminal 5, and mixing water gets into refrigeration host computer 1 and is cooled to T1, is delivered to air conditioning terminal 5 through cooling pump 4; Make refrigeration host computer 1 be offloaded to efficient running status, improve the Energy Efficiency Ratio of refrigeration host computer 1.
Claims (3)
1. direct cooling formula water chilling air conditioning system; Comprise refrigeration host computer (1), cold-storage tank (2), cold-storage pump (3), cooling pump (4) and air conditioning terminal (5); The import of refrigeration host computer (1) is connected with the outlet of cold-storage pump (3); It is characterized in that: said direct cooling formula water chilling air conditioning system also comprises a bypass pipe (6), and the outlet of said refrigeration host computer (1) is connected and behind motor-driven valve F2, is divided into two branch roads through pipeline with motor-driven valve F2, branch road be by cooling pump (4) and air conditioning terminal (5) be connected to form the air-conditioning end branch; Another branch road be by motor-driven valve F1 and cold-storage tank (2) be connected to form cold-storage tank branch road; Air conditioning terminal (5), cold-storage tank (2) all are connected with the inlet ductwork of cold-storage pump (3), on the inlet ductwork of cold-storage pump (3), are provided with electric control valve V6
One end of said bypass pipe (6) is connected on the inlet ductwork of the cold-storage pump (3) between said electric control valve V6 and the cold-storage pump (3); The other end of bypass pipe (6) is connected on the pipeline between said cold-storage tank (2) and the motor-driven valve F1; On bypass pipe (6), be provided with electric control valve V5; Temperature sensor T2 is installed on the inlet ductwork of cold-storage pump (3), and temperature sensor T2 is connected with electric control valve V5 signal.
2. direct cooling formula water chilling air conditioning system according to claim 1; It is characterized in that: the two ends of said air conditioning terminal branch road are provided with communicating pipe; Temperature sensor T1 and electric control valve V4 are installed on the entrance pipe of cooling pump (4); Temperature sensor T1 is near the inlet of cooling pump (4); Wherein the end of communicating pipe is connected on the pipeline of temperature sensor T1 and electric control valve V4, and electric control valve V3 was installed on said communicating pipe, and electric control valve V3, electric control valve V4 all are connected with temperature sensor T1 signal.
3. direct cooling formula water chilling air conditioning system according to claim 2; It is characterized in that: through the setting of bypass pipe (6); The loop structure that connects into by refrigeration host computer (1), cold-storage tank (2), cold-storage pump (3), electric control valve V5, electric control valve V6, motor-driven valve F2; When closing motor-driven valve F1, constitute the cooling loop of connecting of cold-storage tank (2) and refrigeration host computer (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201399373U CN202630267U (en) | 2012-04-01 | 2012-04-01 | Direct cold supply type water cold storage air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201399373U CN202630267U (en) | 2012-04-01 | 2012-04-01 | Direct cold supply type water cold storage air conditioning system |
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| CN202630267U true CN202630267U (en) | 2012-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012201399373U Expired - Fee Related CN202630267U (en) | 2012-04-01 | 2012-04-01 | Direct cold supply type water cold storage air conditioning system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620365A (en) * | 2012-04-01 | 2012-08-01 | 广州贝龙环保热力设备股份有限公司 | Direct cooling type water cold storage air-conditioning system and operating method thereof |
| CN106369871A (en) * | 2016-10-27 | 2017-02-01 | 中国水产科学研究院渔业机械仪器研究所 | Ship air-conditioning system used for tail gas adsorption refrigeration and compression refrigeration unit recombination |
| 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 |
-
2012
- 2012-04-01 CN CN2012201399373U patent/CN202630267U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620365A (en) * | 2012-04-01 | 2012-08-01 | 广州贝龙环保热力设备股份有限公司 | Direct cooling type water cold storage air-conditioning system and operating method thereof |
| CN106369871A (en) * | 2016-10-27 | 2017-02-01 | 中国水产科学研究院渔业机械仪器研究所 | Ship air-conditioning system used for tail gas adsorption refrigeration and compression refrigeration unit recombination |
| CN106369871B (en) * | 2016-10-27 | 2018-09-11 | 中国水产科学研究院渔业机械仪器研究所 | The marine air-conditioning system that tail gas adsorption refrigeration is used in combination with compression refigerating machine group |
| 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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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20140401 |