CN214276214U - Cold, heat and storage integrated energy supply energy-saving system - Google Patents
Cold, heat and storage integrated energy supply energy-saving system Download PDFInfo
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- CN214276214U CN214276214U CN202120273330.3U CN202120273330U CN214276214U CN 214276214 U CN214276214 U CN 214276214U CN 202120273330 U CN202120273330 U CN 202120273330U CN 214276214 U CN214276214 U CN 214276214U
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- evaporator
- assembly
- water tank
- cold
- energy
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- 238000003860 storage Methods 0.000 title claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 90
- 239000003507 refrigerant Substances 0.000 claims abstract description 31
- 239000012267 brine Substances 0.000 claims abstract description 25
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims abstract description 25
- 238000009825 accumulation Methods 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 13
- 239000002002 slurry Substances 0.000 claims description 12
- 238000002844 melting Methods 0.000 claims description 8
- 230000008018 melting Effects 0.000 claims description 8
- 238000011084 recovery Methods 0.000 claims description 8
- 239000013078 crystal Substances 0.000 claims description 7
- 239000000498 cooling water Substances 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
- 238000005219 brazing Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 230000010354 integration Effects 0.000 claims 1
- 238000004146 energy storage Methods 0.000 abstract description 12
- 238000005057 refrigeration Methods 0.000 abstract description 12
- 238000007710 freezing Methods 0.000 abstract description 3
- 238000001223 reverse osmosis Methods 0.000 abstract description 3
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 238000009833 condensation Methods 0.000 description 8
- 230000005494 condensation Effects 0.000 description 8
- 239000007789 gas Substances 0.000 description 8
- 230000009467 reduction Effects 0.000 description 6
- 238000000926 separation method Methods 0.000 description 5
- 238000004378 air conditioning Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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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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- Other Air-Conditioning Systems (AREA)
Abstract
The invention discloses a cold, heat and storage integrated energy supply energy-saving system which comprises an evaporator assembly, a thermal expansion valve assembly, a water tank assembly, an evaporative condenser assembly and an RO type brine separator, wherein the evaporator assembly comprises an evaporator II and an evaporator I, the thermal expansion valve assembly comprises a thermal expansion valve I, a thermal expansion valve II, an electromagnetic valve I and an electromagnetic valve II, and the water tank assembly comprises a hot water tank and a cold storage water tank. The invention adopts the evaporator II and the evaporator I to respectively refrigerate the conventional chilled water and the anti-freezing type brine, adopts the reverse osmosis separator to prepare the supercooled water, and simultaneously recovers the sensible heat of the refrigerant by the system, thereby realizing the comprehensive energy supply service of the conventional hot water, the air conditioner and the high-efficiency dynamic cold accumulation of the system. The invention effectively solves the problem that the same refrigerating unit can not realize domestic hot water, conventional refrigeration and dynamic energy storage and energy supply at the same time at present, helps a user realize three purposes of one machine, reduces the repeated investment of refrigerating equipment, improves the energy storage and cold supply efficiency, provides domestic hot water free, and saves a large amount of investment cost of energy equipment and energy use cost for the user. Can be widely applied to the field of energy conservation of air conditioners.
Description
Technical Field
The invention relates to a cold, hot and storage integrated energy supply and energy saving system, and relates to the technical field of air conditioner refrigeration energy saving.
Background
The air conditioner energy storage is widely applied at present, and the air conditioner energy storage mode on the market is basically carried out according to the following modes:
the user adopts two different working conditions of air conditioning: conventional air-conditioning and cold-storage air-conditioning: the conventional air conditioner is used in the valley period or the flat period of the electric power, and directly provides chilled water with the temperature of 7 ℃ or above for cooling a user. The cold accumulation air conditioner is used in the electric power valley period, the energy is stored in the electric power valley period, and then the cold is released to provide cold energy for users in the electric power peak period (at the moment, the host does not operate), so that the purposes of electric power peak shifting valley filling and air conditioner cost saving are achieved.
Different host computers under two kinds of operating modes of conventional air conditioner and cold-storage air conditioner cooperate the operation, all weather need the refrigerated place of air conditioner very economy to 24 hours, but to the place that does not need the air conditioner at most periods of night, like school, market, factory that does not have night shift etc. then there are the following circumstances to be optimized and solved: at this time, if the conventional air conditioner is adopted for refrigeration completely, the preferential policy of peak-to-valley electricity price difference cannot be utilized to carry out energy storage and cost reduction. If a conventional air conditioner and cold accumulation air conditioner mode is adopted and one machine is used, the starting time of different main machines is short, and the initial investment of a user is large and uneconomical. If a complete cold accumulation mode is adopted, the energy efficiency of the air conditioner host is low under the cold accumulation working condition, the power cost difference between the flat section and the valley section is not obvious, and the cold accumulation amount is uneconomical when the user is in the flat section.
In addition, a large amount of condensation heat is wasted during refrigeration of the existing cold storage air conditioner, and the purpose of comprehensive utilization of resources is achieved by fully considering recycling of condensation waste heat of the air conditioner as a heat source of domestic hot water.
In order to solve the problems, it is important to develop a three-purpose energy-saving system capable of simultaneously performing cold, heat and storage integrated energy supply, the system completely uses the cold energy of the ice storage working condition in the peak time of the day, adopts the conventional refrigeration working condition in the flat time to ensure the refrigeration efficiency, and the user just uses the cold storage working condition of the air conditioner when not working in the valley time of night, and can provide domestic hot water for free in all weather.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a cold, hot and storage integrated energy supply and energy saving system. Two evaporators respectively correspond to two secondary refrigerants of conventional chilled water and anti-freezing brine chilled water, a supercooled water device is prepared by sensible heat recovery and reverse osmosis separation of the refrigerants, and a combined throttling device is matched for throttling and pressure reduction, so that conventional hot water, an air conditioner and high-efficiency dynamic cold accumulation and energy supply services are realized.
The technical scheme adopted by the invention is as follows:
the invention provides a cold, heat and storage integrated energy supply energy-saving system which specifically comprises an evaporator assembly, a thermal expansion valve assembly, a water tank assembly, an evaporative condenser assembly 20 and an RO type brine separator 16, wherein the evaporator assembly comprises an evaporator II18 and an evaporator I19, the thermal expansion valve assembly comprises a thermal expansion valve I7, a thermal expansion valve I8, an electromagnetic valve I24 and an electromagnetic valve II25, and the water tank assembly comprises a hot water tank 3 and a cold storage water tank 14.
The evaporator assembly, the thermal expansion valve assembly, the evaporative condenser assembly 20, the compressor 1, the brazing heat exchanger 2 and the refrigerant liquid storage tank 6 form a refrigerating system together.
Two side ports of the RO type brine separator 16 are respectively communicated with the evaporator II18 and the ultrasonic transducer 15, and the middle port is communicated with a pipeline between the brine pump 9 and the proportional-integral regulating valve 10.
The ultrasonic transducer 15 is connected with the cold accumulation water tank 14, the bottom of the cold accumulation water tank 14 is communicated with the ice crystal filter 11 through a pipeline, and meanwhile, the cold accumulation water tank 14, the primary side ice slurry pump 12 and the ice melting heat exchanger 13 jointly form a dynamic ice slurry ice melting and cold discharging system.
The heat recovery production system is composed of the drill heat exchanger 2, the hot water tank 3 and the hot water pump 5.
The evaporative condenser assembly 20 comprises a condensing coil 21, a cooling water pump 4, a liquid separating and spraying assembly 22 and a cooling fan 23.
The invention has the beneficial effects that: the invention discloses a cold, heat and storage integrated energy supply energy-saving system, which respectively corresponds to two secondary refrigerants of conventional chilled water and anti-freezing brine chilled water by adopting two evaporators, adopts a refrigerant sensible heat recovery and reverse osmosis separation to prepare a supercooled water device, and is matched with a combined throttling device to throttle and reduce pressure, thereby realizing the conventional hot water, air conditioning and high-efficiency dynamic cold accumulation energy supply services. The invention effectively solves the problem that the same refrigerating unit can not realize domestic hot water, conventional refrigeration and dynamic energy storage and supply at the same time at present, helps a user realize three purposes, saves the hot water use cost of the user, reduces the repeated investment of refrigerating equipment, improves the energy storage and cooling efficiency, and saves a large amount of energy equipment investment cost and energy use cost for the user. The invention can be widely applied to the field of energy conservation of air conditioners.
Drawings
FIG. 1 is a schematic diagram of an energy-saving system with integrated cooling, heating and storage functions according to an embodiment of the present invention; in the figure:
the compressor is characterized in that a brazing heat exchanger (1), a hot water tank (2), a cooling water pump (3), a hot water pump (5), a refrigerant liquid storage tank (6), a thermal expansion valve I (7), a thermal expansion valve II (8), a brine pump (9), a proportional integral regulating valve (10), an ice slurry filter (11), a primary side ice slurry pump (12), an ice melting heat exchanger (13), a cold storage water tank (14), an ultrasonic transducer (15), an RO type brine separator (16), a salt adding tank (17), an evaporator II (18), an evaporator I (19), an evaporative condenser (20), a condensing coil (21), a liquid separation spraying assembly (22), a cooling fan (23), an electromagnetic valve I (24) and an electromagnetic valve II (25) are arranged on the compressor.
Detailed Description
As shown in fig. 1, the embodiment of the energy-saving system with integrated cooling, heating and storage functions according to the present invention includes the following specific embodiments:
refrigeration and heat recovery circulation under normal working conditions: high-temperature refrigerant gas discharged from the compressor 1 enters the primary side of the drill type heat exchanger 2, and fully exchanges heat with water pumped into the secondary side of the drill type heat exchanger 2 through a hot water pump 5, high-temperature sensible heat of the refrigerant is exchanged and recovered to a hot water tank 3, and the high-temperature refrigerant gas is continuously circulated to finally prepare domestic hot water at about 50 ℃; the refrigerant is cooled and then enters the evaporative condenser assembly 20 for condensation and heat release, in the process, the refrigerant gas firstly enters the condensation coil 21, water pumped by the cooling water pump 4 is sent to the liquid separation spraying assembly 22 to be uniformly sprayed out, the water is uniformly sprayed to the condensation coil 21 to be directly evaporated and absorb heat, the refrigerant is condensed, and the absorbed heat energy is discharged outwards through the cooling fan 23; a part of liquid refrigerant from the evaporative condenser assembly 20 enters a refrigerant liquid storage tank 6 for storage, the rest of liquid refrigerant enters a thermostatic expansion valve I7 through an electromagnetic valve I24 for throttling and pressure reduction, and enters an evaporator I19, at the moment, the electromagnetic valve I24 is opened, the electromagnetic valve II25 is closed, the liquid refrigerant is fully absorbed heat in an evaporator I19 and then turns into a gas state, and then enters the compressor 1, the circulation is continuously performed, the refrigeration and heat energy recovery under the conventional working condition are performed, at the moment, the secondary refrigerant is chilled water passing through the secondary side of the evaporator I19, the chilled water return water at the position A and the refrigerant at the primary side of the evaporator I19 are fully subjected to heat exchange, and the chilled water of an air conditioner under the conventional working condition of 7 ℃ or above is provided for cooling a user after heat release and temperature reduction.
Dynamic energy storage working condition refrigeration and heat recovery circulation: similarly, the high-temperature refrigerant gas discharged from the compressor 1 enters the primary side of the drill rod type heat exchanger 2, and fully exchanges heat with the water pumped into the secondary side of the drill rod type heat exchanger 2 through the hot water pump 5, so that the high-temperature sensible heat of the refrigerant is exchanged and recovered to the hot water tank 3, and the high-temperature refrigerant gas is continuously circulated to finally prepare domestic hot water at about 50 ℃; the refrigerant is cooled and then enters the evaporative condenser assembly 20 for condensation and heat release, in the process, the refrigerant gas firstly enters the condensation coil 21, water pumped by the cooling water pump 4 is sent to the liquid separation spraying assembly 22 to be uniformly sprayed out, the water is uniformly sprayed to the condensation coil 21 to be directly evaporated and absorb heat, the refrigerant is condensed, and the absorbed heat energy is discharged outwards through the cooling fan 23; a part of liquid refrigerant from the evaporative condenser assembly 20 enters a refrigerant liquid storage tank 6 for storage, the rest liquid refrigerant enters a thermostatic expansion valve II8 through a solenoid valve I25 for throttling and pressure reduction and then enters an evaporator II18, at the moment, the solenoid valve II25 is opened, the solenoid valve I24 is closed, the liquid refrigerant is fully absorbed in the evaporator II18 and then turns into a gas state, and then enters the compressor 1, and the process of dynamic energy storage and heat recovery is continuously circulated; the brine solution is pumped into the secondary side of an evaporator II18 by a brine pump 9, is changed into supercooled brine after being subjected to heat exchange and heat release and temperature reduction with the refrigerant, after the supercooled brine enters an RO type brine separator, a part of high-concentration brine flows back to the brine pump (9) for supercooling circulation, and after the other part of the high-concentration brine is filtered by a two-stage membrane in the RO type brine separator 16, the high-concentration brine is changed into supercooled purified water to enter an ultrasonic transducer 15 for crystal promotion reaction to be changed into fine slurry crystals, and the fine slurry crystals enter a cold storage water tank 14 for phase change type energy storage, wherein the upper part of the cold storage water tank 14 is ice slurry, the lower part of the cold storage water and ice crystal mixed solution is mixed with the ice crystal filter 11, and the flow of the mixed solution is adjusted by a proportional integral adjusting valve 10 to be used as brine concentration adjusting make-up water, mixed with the high concentration water separated from the RO type brine separator 16, and introduced into the brine pump 9, thus continuously performing the accumulator cycle.
Ice melting and cold releasing work cycle: the ice slurry solution in the cold accumulation water tank 14 is pumped into the primary side of the ice melting heat exchanger 13 through the primary side ice slurry pump 12, heat exchange is carried out between the ice slurry solution and the return water of the chilled water from the B position, the chilled water is cooled after releasing heat and cooling at the secondary side of the ice melting heat exchanger 13, and the circulation is continuous.
Through the specific implementation mode, the invention can realize domestic hot water, conventional refrigeration and dynamic energy storage and energy supply for users, help the users to realize three purposes, save the hot water use cost of the users, reduce the repeated investment of refrigeration equipment, improve the energy storage and cooling efficiency, save a large amount of energy equipment investment cost and energy use cost for the users, and has obvious economic and social benefits.
The above description is not intended to limit the present invention, and the present invention is not limited to the above embodiments, and any changes, modifications, additions or substitutions that can achieve the technical effects of the present invention and are within the scope of the present invention should be considered as falling within the spirit of the present invention.
Claims (6)
1. The utility model provides a cold, hot, hold integration energy supply economizer system which characterized in that: the solar water heater comprises an evaporator assembly, a thermal expansion valve assembly, a water tank assembly, an evaporative condenser assembly (20) and an RO type brine separator (16), wherein the evaporator assembly comprises an evaporator II (18) and an evaporator I (19), the thermal expansion valve assembly comprises a thermal expansion valve I (7), a thermal expansion valve II (8), an electromagnetic valve I (24) and an electromagnetic valve II (25), and the water tank assembly comprises a hot water tank (3) and a cold storage water tank (14).
2. The integrated energy supply and saving system of claim 1, wherein: the evaporator assembly, the thermal expansion valve assembly, the evaporative condenser assembly (20), the compressor (1), the brazing heat exchanger (2) and the refrigerant liquid storage tank (6) jointly form a refrigerating system.
3. The integrated energy supply and saving system of claim 1, wherein: two side ports of the RO type brine separator (16) are respectively communicated with the evaporator II (18) and the ultrasonic transducer (15), and the middle port is communicated with a pipeline between the brine pump (9) and the proportional-integral regulating valve (10).
4. The integrated energy supply and saving system of claim 3, wherein: the ultrasonic transducer (15) is connected with the cold accumulation water tank (14), the bottom of the cold accumulation water tank (14) is communicated with the ice crystal filter (11) through a pipeline, and meanwhile, the cold accumulation water tank (14), the primary side ice slurry pump (12) and the ice melting heat exchanger (13) jointly form a dynamic ice slurry ice melting and cooling system.
5. The integrated energy supply and saving system of claim 2, wherein: the drill heat exchanger (2), the hot water tank (3) and the hot water pump (5) jointly form a heat energy recovery production system.
6. The integrated energy supply and saving system of claim 1, wherein: the evaporative condenser assembly (20) comprises a condensing coil (21), a cooling water pump (4), a liquid separating and spraying assembly (22) and a cooling fan (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120273330.3U CN214276214U (en) | 2021-01-31 | 2021-01-31 | Cold, heat and storage integrated energy supply energy-saving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120273330.3U CN214276214U (en) | 2021-01-31 | 2021-01-31 | Cold, heat and storage integrated energy supply energy-saving system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214276214U true CN214276214U (en) | 2021-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120273330.3U Expired - Fee Related CN214276214U (en) | 2021-01-31 | 2021-01-31 | Cold, heat and storage integrated energy supply energy-saving system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214276214U (en) |
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2021
- 2021-01-31 CN CN202120273330.3U patent/CN214276214U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210924 |
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| CF01 | Termination of patent right due to non-payment of annual fee |