CN105157132A - Fountain type chilled water storage system for large place - Google Patents

Fountain type chilled water storage system for large place Download PDF

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Publication number
CN105157132A
CN105157132A CN201510350671.5A CN201510350671A CN105157132A CN 105157132 A CN105157132 A CN 105157132A CN 201510350671 A CN201510350671 A CN 201510350671A CN 105157132 A CN105157132 A CN 105157132A
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CN
China
Prior art keywords
water
cold
pond
water inlet
inlet pipe
Prior art date
Application number
CN201510350671.5A
Other languages
Chinese (zh)
Inventor
许文辉
杨宇楠
Original Assignee
许文辉
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 许文辉 filed Critical 许文辉
Priority to CN201510350671.5A priority Critical patent/CN105157132A/en
Publication of CN105157132A publication Critical patent/CN105157132A/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0007Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
    • F24F5/0017Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/30Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/89Arrangement or mounting of control or safety devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0007Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
    • F24F5/0017Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice
    • F24F2005/0032Systems storing energy during the night
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00Control inputs relating to system states
    • F24F2140/10Pressure
    • F24F2140/12Heat-exchange fluid pressure
    • 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
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14Thermal energy storage

Abstract

The invention provides a fountain type chilled water storage system for a large place and belongs to the field of energy storage. The chilled water storage system comprises a cylindrical cold energy storage tank. A heat insulation layer wraps the outer wall of the cold energy storage tank. The cold energy storage tank is internally provided with a refrigerating pipe. The interior of the cold energy storage tank is divided into a hot water layer, a thermocline layer and a cold water layer from top to bottom according to water temperatures. The cold water layer is communicated with a water outlet pipe. The water outlet pipe is provided with a water pump. The inner end of the water outlet pipe is communicated with the cold energy storage tank. The outer end of the water outlet pipe is connected with a conical spray head. The spray head is provided with a plurality of spray holes. The chilled water storage system further comprises a spray pond. The bottom of the spray pond is in a circular arc shape. The cold energy storage tank is located underground. The spray pond is located on the ground. The spray head extends out of the bottom of the spray pond. The hot water layer is communicated with a water inlet pipe. The inner end of the water inlet pipe is communicated with the cold energy storage tank. The outer end of the water inlet pipe is communicated with the bottom of the spray pond. The bottom wall of the spray pond is provided with a pressure sensor. The water inlet pipe is provided with a solenoid valve. The pressure sensor controls the solenoid valve. The chilled water storage system is attractive in appearance and high in refrigerating efficiency in the using process.

Description

A kind of fountain type water cold accumulation system for large-scale place
Technical field
The invention belongs to accumulation of energy field, relate to a kind of fountain type water cold accumulation system for large-scale place.
Background technology
Water cold storage technology utilizes electricity price between peak and valley, is stored in water at low ebb rate period by cold, and the peak of power consumption period uses the cryogenic freezing water extraction stored cold for idle call by day.When air-conditioning service time and non-air-conditioning service time and electrical network peak and low ebb synchronous time, use when just the idle call electricity in electrical network rush hour can be transferred to electrical network low ebb, reach the object of power cost saving.The most ripe and the effective cold-storage mode of current use is natural layering.
Natural layering and thermal stratification, thermal stratification type water cold storage utilizes water density when different temperatures this physical characteristic different, relies between density official post warm water and cold water and keep separating, and avoids cold water and warm water mixing to cause loss of refrigeration capacity.
The density of water about 4 DEG C time is maximum, and along with the high-density of water temperature reduces gradually, utilize this physical characteristic of water, the water making temperature low is stored in the bottom in pond, and the high water level of temperature is in the top being stored in pond.Design good thermal stratification type water cold storage pond and form a caloic switching layer between warm water district, top and cold water area, bottom.One stable and thickness is little caloic switching layer improves the key of cold-storage efficiency.
In some large-scale places, such as market, car exhibitions etc. are all freeze in club, when central air-conditioning works by day by installing central air-conditioning, electricity price is high, cost is very high, and in addition, the air-conditioning system structure in existing large-scale place is single, the enjoyment of consumer U.S. cannot be given, cannot meet and reach effect attractive in appearance while can freezing.
Summary of the invention
The object of the invention is for the above-mentioned problems in the prior art, provide a kind of fountain type water cold accumulation system for large-scale place, when this fountain type water cold accumulation system being used for large-scale place uses, visual effect is attractive in appearance, refrigerating efficiency is high, solves the air-conditioning system structure in existing large-scale place and the problem such as outward appearance is single.
Object of the present invention realizes by following technical proposal: a kind of fountain type water cold accumulation system for large-scale place, it is characterized in that: described chilled water storage system comprises cylindrical circular cold accumulating pond, described cold accumulating pond outer wall is enclosed with one layer of heat preservation layer, in described cold accumulating pond, there is refrigerator pipes, hot water layer is divided into from top to bottom by water temperature in described cold accumulating pond, mesolimnion and cold water layer, described cold water layer is communicated with outlet pipe, described outlet pipe has water pump, the inner of described outlet pipe is communicated with described cold accumulating pond, the outer end of described outlet pipe is connected with the shower nozzle in taper, described shower nozzle has multiple spray orifice, described chilled water storage system also comprises spray pond, the bottom of described spray pond is circular arc, described cold accumulating pond is positioned at underground, described spray pond is established on the ground, described shower nozzle stretches out bottom described spray pond, described hot water layer is communicated with water inlet pipe, the inner of described water inlet pipe is communicated with described cold accumulating pond, the outer end of described water inlet pipe is communicated with bottom described spray pond, the diapire of described spray pond has pressure sensor, described water inlet pipe has magnetic valve, described pressure sensor controls described magnetic valve.
The refrigeration modes of this cold accumulating pond is thermal stratification formula, can effectively economize on electricity, refrigerator pipes was started working in morning, make water cold storage, when place opening on daytime or use, open water pump, the water of cold water layer is sprayed by shower nozzle, in fountain shape, then fall in spray pond, in this process, can effectively freeze in place, good refrigeration effect, and the view effect of fountain is very grand, the eyeball of consumer can be attracted, add the desire for consumer goods of consumer, more people can also be attracted simultaneously, current temperature after falling into spray pond is also in a lower state usually, if be now directly disposed to the waste that hot water layer can cause cold, and make refrigerating efficiency slow, by the setting of pressure sensor and magnetic valve, the cold water that spray is fallen is trapped in a period of time in spray pond, continue to freeze to air, when the water fallen increases gradually, when reaching the setting value of pressure sensor, now sensor is opened by control module Controlling solenoid valve, water in spray pond is entered in hot water layer by water inlet pipe.This chilled water storage system smart structural design, can bring fine visual effect to consumer while fast-refrigerating.
Above-mentioned a kind of in the fountain type water cold accumulation system in large-scale place, described water inlet pipe is responsible for by intaking and two water inlet pipes are formed, described water inlet pipe is separately positioned on described shower nozzle both sides, described water inlet pipe is communicated in the diapire of described spray pond, and described magnetic valve is located on described water inlet supervisor.
The water inlet pipe of this kind of structure can make the discharge spray pond of the uniform fluid flow falling into shower nozzle both sides.
Above-mentioned a kind of in the fountain type water cold accumulation system in large-scale place, the inner of described water inlet pipe is enlarging shape and the inwall of flared end port is fixed with cylindrical sponge block one, and described sponge block one is positioned at described hot water layer.
If directly current are discharged in hot water layer by water inlet pipe, can disturbance mesolimnion, cause the loss of cold, water flow stationary entering in hot water layer at the uniform velocity can be made by the cushioning effect of sponge.
Above-mentioned a kind of in the fountain type water cold accumulation system in large-scale place, the port bore of the flared end of described water inlet pipe and the internal diameter of described cold accumulating pond match.
Enable current even to entered in hot water layer by sponge block one.
Above-mentioned a kind of in the fountain type water cold accumulation system in large-scale place, the inner of outlet pipe is enlarging shape and the inwall of flared end port is fixed with cylindrical sponge block two.
If directly extract cold water from cold water layer, can disturbance mesolimnion, cause the loss of cold, by the cushioning effect of sponge can make water flow stationary at the uniform velocity leave cold accumulating pond.
Compared with prior art, this fountain type water cold accumulation system being used for large-scale place has the following advantages:
1, this refrigeration modes being used for the fountain type water cold accumulation system in large-scale place is thermal stratification formula, can effectively economize on electricity.
2, this fountain type water cold accumulation system being used for large-scale place can effectively freeze in place, good refrigeration effect, and the view effect of fountain is very grand, can attract the eyeball of consumer, add the desire for consumer goods of consumer, more people can also be attracted simultaneously.
3, this is used for the setting of fountain type water cold accumulation system by pressure sensor and magnetic valve in large-scale place, the cold water that spray is fallen is trapped in a period of time in spray pond, continue to freeze to air, when the water fallen increases gradually, when reaching the setting value of pressure sensor, now sensor is opened by control module Controlling solenoid valve, and the water in spray pond enters in hot water layer by water inlet pipe, design ingenious, cryogenic energy utilization rate is high.
4, this is used for the fountain type water cold accumulation system smart structural design in large-scale place, can bring fine visual effect while fast-refrigerating to consumer.
5, this be used for large-scale place fountain type water cold accumulation system water inlet pipe by intake supervisor and two water inlet pipes form, the water inlet pipe of this kind of structure can make the discharge spray pond of the uniform fluid flow falling into shower nozzle both sides.
Accompanying drawing explanation
Fig. 1 is originally for the overall structure schematic diagram of the fountain type water cold accumulation system in large-scale place.
Fig. 2 is originally for the structural representation of the shower nozzle of the fountain type water cold accumulation system in large-scale place.
In figure, 1, cold accumulating pond; 2, outlet pipe; 3, water pump; 4, shower nozzle; 4a, spray orifice; 5, spray pond; 6, water inlet pipe; 6a, water inlet supervisor; 6b, water inlet pipe; 7, pressure sensor; 8, magnetic valve; 9, sponge block one; 10, sponge block two.
Detailed description of the invention
As depicted in figs. 1 and 2, this fountain type water cold accumulation system being used for large-scale place comprises cylindrical circular cold accumulating pond 1, cold accumulating pond 1 outer wall is enclosed with one layer of heat preservation layer, in cold accumulating pond 1, there is refrigerator pipes, hot water layer is divided into from top to bottom by water temperature in cold accumulating pond 1, mesolimnion and cold water layer, cold water layer is communicated with outlet pipe 2, outlet pipe 2 has water pump 3, the inner of outlet pipe 2 is communicated with cold accumulating pond 1, the outer end of outlet pipe 2 is connected with the shower nozzle 4 in taper, shower nozzle 4 has multiple spray orifice 4a, chilled water storage system also comprises spray pond 5, the bottom of spray pond 5 is circular arc, cold accumulating pond 1 is positioned at underground, spray pond 5 is established on the ground, shower nozzle 4 stretches out bottom spray pond 5, hot water layer is communicated with water inlet pipe 6, the inner of water inlet pipe 6 is communicated with cold accumulating pond 1, the outer end of water inlet pipe 6 is communicated with bottom spray pond 5, the diapire of spray pond 5 has pressure sensor 7, water inlet pipe 6 has magnetic valve 8, pressure sensor 7 Controlling solenoid valve 8.
The refrigeration modes of this cold accumulating pond 1 is thermal stratification formula, can effectively economize on electricity, refrigerator pipes was started working in morning, make water cold storage, when place opening on daytime or use, open water pump 3, the water of cold water layer is sprayed by shower nozzle 4, in fountain shape, then fall in spray pond 5, in this process, can effectively freeze in place, good refrigeration effect, and the view effect of fountain is very grand, the eyeball of consumer can be attracted, add the desire for consumer goods of consumer, more people can also be attracted simultaneously, current temperature after falling into spray pond 5 is also in a lower state usually, if be now directly disposed to the waste that hot water layer can cause cold, and make refrigerating efficiency slow, by the setting of pressure sensor 7 and magnetic valve 8, the cold water that spray is fallen is trapped in a period of time in spray pond 5, continue to freeze to air, when the water fallen increases gradually, when reaching the setting value of pressure sensor 7, now sensor is opened by control module Controlling solenoid valve 8, water in spray pond 5 is entered in hot water layer by water inlet pipe 6.This chilled water storage system smart structural design, can bring fine visual effect to consumer while fast-refrigerating.
As shown in Figure 1, water inlet pipe 6 is made up of water inlet supervisor 6a and two water inlet pipe 6b, and water inlet pipe 6b is separately positioned on shower nozzle 4 both sides, and water inlet pipe 6b is communicated in the diapire of spray pond 5, and magnetic valve 8 is located at on water supervisor 6a.The water inlet pipe 6 of this kind of structure can make the discharge spray pond 5 of the uniform fluid flow falling into shower nozzle 4 both sides.
As shown in Figure 1, the inner of water inlet pipe 6 is enlarging shape and the inwall of flared end port is fixed with cylindrical sponge block 1, and sponge block 1 is positioned at hot water layer.If directly current are discharged in hot water layer by water inlet pipe 6, can disturbance mesolimnion, cause the loss of cold, water flow stationary entering in hot water layer at the uniform velocity can be made by the cushioning effect of sponge.
As shown in Figure 1, the port bore of the flared end of water inlet pipe 6 and the internal diameter of cold accumulating pond 1 match.Enable current even to entered in hot water layer by sponge block 1.
As shown in Figure 1, the inner of outlet pipe 2 is enlarging shape and the inwall of flared end port is fixed with cylindrical sponge block 2 10.If directly extract cold water from cold water layer, can disturbance mesolimnion, cause the loss of cold, by the cushioning effect of sponge can make water flow stationary at the uniform velocity leave cold accumulating pond 1.
This is used for the fountain type water cold accumulation system smart structural design in large-scale place, can bring fine visual effect while fast-refrigerating to consumer.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.

Claims (5)

1. the fountain type water cold accumulation system for large-scale place, it is characterized in that: described chilled water storage system comprises cylindrical circular cold accumulating pond, described cold accumulating pond outer wall is enclosed with one layer of heat preservation layer, in described cold accumulating pond, there is refrigerator pipes, hot water layer is divided into from top to bottom by water temperature in described cold accumulating pond, mesolimnion and cold water layer, described cold water layer is communicated with outlet pipe, described outlet pipe has water pump, the inner of described outlet pipe is communicated with described cold accumulating pond, the outer end of described outlet pipe is connected with the shower nozzle in taper, described shower nozzle has multiple spray orifice, described chilled water storage system also comprises spray pond, the bottom of described spray pond is circular arc, described cold accumulating pond is positioned at underground, described spray pond is established on the ground, described shower nozzle stretches out bottom described spray pond, described hot water layer is communicated with water inlet pipe, the inner of described water inlet pipe is communicated with described cold accumulating pond, the outer end of described water inlet pipe is communicated with bottom described spray pond, the diapire of described spray pond has pressure sensor, described water inlet pipe has magnetic valve, described pressure sensor controls described magnetic valve.
2. a kind of fountain type water cold accumulation system for large-scale place according to claim 1, it is characterized in that, described water inlet pipe is responsible for by intaking and two water inlet pipes are formed, described water inlet pipe is separately positioned on described shower nozzle both sides, described water inlet pipe is communicated in the diapire of described spray pond, and described magnetic valve is located on described water inlet supervisor.
3. a kind of fountain type water cold accumulation system for large-scale place according to claim 1 and 2, it is characterized in that, the inner of described water inlet pipe is enlarging shape and the inwall of flared end port is fixed with cylindrical sponge block one, and described sponge block one is positioned at described hot water layer.
4. a kind of fountain type water cold accumulation system for large-scale place according to claim 3, is characterized in that, the port bore of the flared end of described water inlet pipe and the internal diameter of described cold accumulating pond match.
5. a kind of fountain type water cold accumulation system for large-scale place according to claim 1 and 2, is characterized in that, the inner of described outlet pipe is enlarging shape and the inwall of flared end port is fixed with cylindrical sponge block two.
CN201510350671.5A 2015-06-24 2015-06-24 Fountain type chilled water storage system for large place CN105157132A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510350671.5A CN105157132A (en) 2015-06-24 2015-06-24 Fountain type chilled water storage system for large place

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510350671.5A CN105157132A (en) 2015-06-24 2015-06-24 Fountain type chilled water storage system for large place

Publications (1)

Publication Number Publication Date
CN105157132A true CN105157132A (en) 2015-12-16

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000002451A (en) * 1998-06-16 2000-01-07 Taikisha Ltd Heat source system using heat storage tank
CN201697250U (en) * 2010-03-25 2011-01-05 同方节能工程技术有限公司 Naturally stratified open-type chilled water storage device
CN104197450A (en) * 2014-09-19 2014-12-10 中山市蓝水能源科技发展有限公司 Water distribution device in water cold accumulation system
CN104197454A (en) * 2014-09-19 2014-12-10 中山市蓝水能源科技发展有限公司 Cold suction type water cold accumulation refrigerating device
CN104214868A (en) * 2014-09-17 2014-12-17 中山市蓝水能源科技发展有限公司 Refrigeration water dispersing device of water cold storage system
CN104214869A (en) * 2014-09-17 2014-12-17 中山市蓝水能源科技发展有限公司 Highly-efficient chilled water storage device
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
CN104406248A (en) * 2014-10-17 2015-03-11 中山市蓝水能源科技发展有限公司 Water discharge device for cold accumulation pool in water cold accumulation

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000002451A (en) * 1998-06-16 2000-01-07 Taikisha Ltd Heat source system using heat storage tank
CN201697250U (en) * 2010-03-25 2011-01-05 同方节能工程技术有限公司 Naturally stratified open-type chilled water storage device
CN104214868A (en) * 2014-09-17 2014-12-17 中山市蓝水能源科技发展有限公司 Refrigeration water dispersing device of water cold storage system
CN104214869A (en) * 2014-09-17 2014-12-17 中山市蓝水能源科技发展有限公司 Highly-efficient chilled water storage device
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
CN104197450A (en) * 2014-09-19 2014-12-10 中山市蓝水能源科技发展有限公司 Water distribution device in water cold accumulation system
CN104197454A (en) * 2014-09-19 2014-12-10 中山市蓝水能源科技发展有限公司 Cold suction type water cold accumulation refrigerating device
CN104406248A (en) * 2014-10-17 2015-03-11 中山市蓝水能源科技发展有限公司 Water discharge device for cold accumulation pool in water cold accumulation

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Application publication date: 20151216