CN216481374U - Cold and hot combined supply system - Google Patents
Cold and hot combined supply system Download PDFInfo
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- CN216481374U CN216481374U CN202123283660.XU CN202123283660U CN216481374U CN 216481374 U CN216481374 U CN 216481374U CN 202123283660 U CN202123283660 U CN 202123283660U CN 216481374 U CN216481374 U CN 216481374U
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/18—Domestic hot-water supply systems using recuperated or waste heat
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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 cold and hot antithetical couplet supplies system, including connecting the ice storage pond and providing the refrigerating unit that cold burden made ice, be equipped with on the refrigerating unit and carry out the cooling water passageway of heat transfer to the cold burden, establish two parallelly connected intercommunication pipelines of way between the export of cooling water passageway and the entry, establish cooling water heat abstractor on the road of a connecting pipe, another intercommunication pipeline and intercommunication domestic water and carry out the heat pump system coupling that heats to it. The utility model discloses a valley electricity drive refrigerating unit produces cold volume night, makes the ice-storage pond accomplish and holds ice, adopts the heat dissipation cooling to handle and heat pump coupling intensification to refrigerating unit's high temperature cooling water simultaneously and handles two kinds of operational modes, has not only solved winter "white cigarette" phenomenon and the extravagant problem of heat energy that leads to because of the heat source discharges, still makes the cold of producing in the system, the heat source obtains more perfect utilization, has improved the efficiency of system.
Description
Technical Field
The utility model relates to a cold and hot antithetical couplet confession system, concretely relates to cold and hot antithetical couplet confession system based on ice cold-storage mode belongs to ice cold-storage technical field.
Background
Along with the improvement of the urbanization rate, the removal of a small regional boiler and the transformation of a heat supply pipe network in an old urban area, the heat supply of cities and towns in China has a huge gap, the heat supply area of cities and towns in China keeps increasing with high proportion in recent years and can meet the basic demand of regional heat supply, but residents in southern and part of northern cities provide seasonal cooling demand for a comfortable office environment in summer.
Based on the situation, the prior art proposes that an ice storage air conditioning system is adopted, ice is made by utilizing the night peak-valley electricity price, low-temperature chilled water is obtained in an ice melting mode during the daytime cold period for refrigeration, and the energy-saving target of 'peak shifting and valley filling' of a power grid is achieved. For example, utility model patent publication No. CN214039068U discloses a novel ice cold-storage ice-making system, including equipment such as compressor, condenser, choke valve, icing board, ice storage tank, ice making bucket, through increasing ice making bucket, technical improvement has been carried out to original bornyl formula evaporation icing board, this kind of mode need not auxiliary heat source and melts the deicing to the ice sheet on icing board surface, has increased the ice-making efficiency and the life of unit, but does not make the processing explanation to the produced cooling water of condenser to the ice tank wall and the pipeline damage that cause because the dead weight of ice sheet drops are not considered.
For another example, the utility model with publication number CN112033077A discloses an ice storage system and a control method thereof, which includes a compressor, a condenser, a cold storage tank, a throttle valve, a flow control valve and a control device. The system directly exchanges heat with chilled water in the cold storage pool through a low-temperature refrigerant generated by the refrigerating unit, set water temperature and current water temperature of the cold storage pool are used as input signals of the control device, and the running frequency of the compressor, the opening degree of the throttle valve and the opening degree of the flow control valve are changed through an optimization processing result of the control device, so that the current temperature of the cold storage pool approaches to the set temperature. The cold accumulation system is matched with the control method to directly adopt the refrigerant to exchange heat with the chilled water, although the heat exchange efficiency is high, the using amount of the refrigerant is large, the initial investment is high, the later maintenance is difficult, the temperature of the cooling water generated by the condenser side is overhigh, and the load of the cooling tower is increased.
In addition, utility model patent No. CN213421305U discloses an ice storage system, which comprises an ice storage tank, an ice making heat exchanger, a cold source and a heat source. When ice is made, a low-temperature cold source generated by a refrigerating unit is utilized to perform heat exchange ice making in the ice storage tank through the improved fin coil pipe; when in deicing, the four-way reversing valve is used for reversing, so that a high-temperature heat source enters the finned coil pipe, part of ice layers on the outer surface of the coil pipe are dissolved, the ice layers fall off and float up to the water surface, and the circulating disturbance assembly is arranged to enhance the deicing speed. However, the system is basically in the peak period of power consumption when ice melting is carried out, the operation cost is high, the long-term frequent switching of the operation mode of the system seriously affects the service life of a unit, and the temperature of a refrigerant in a coil pipe is high when ice making is carried out at night, so that the ice making efficiency is greatly reduced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a cold and hot antithetical couplet supplies system adopts the millet electricity at night to drive refrigerating unit and produces cold volume, makes the ice-storage pond accomplish and holds the ice, adopts heat dissipation cooling treatment and heat pump coupling intensification to refrigerating unit's high temperature cooling water simultaneously and handles two kinds of operational modes, has not only solved "white cigarette" phenomenon and the extravagant problem of heat energy that leads to because of the heat source discharges winter, still make the cold that produces in the system, the heat source obtains more perfect utilization, the efficiency of system has been improved.
The utility model discloses a following technical scheme realizes: the utility model provides a cold and hot confession system jointly, is including connecting the ice storage pond and providing the refrigerating unit that cold burden made ice, is equipped with the cooling water passageway that carries out the heat transfer to the cold burden on the refrigerating unit, establishes the parallelly connected intercommunication pipeline of two way between the export of cooling water passageway and the entry, establishes cooling water heat abstractor on the intercommunication pipeline, another intercommunication pipeline and intercommunication domestic water and carry out the heat pump system coupling that heats it.
Establish chilled water inlet tube, chilled water outlet pipe, cold burden inlet tube and cold burden outlet pipe on the ice storage pond, establish the ice coil pipe of intercommunication cold burden inlet tube and cold burden outlet pipe in the ice storage pond, establish the mouth of blowing that communicates air compressor in the ice storage pond bottom, cold burden inlet tube and cold burden outlet pipe communicate refrigerating unit respectively.
The refrigerating unit comprises a cold machine evaporator and a cold machine condenser, wherein a cold material channel and a refrigerant evaporation channel for heat exchange between a cold material and a refrigerant are arranged on the cold machine evaporator, the inlet of the cold material channel is communicated with a cold material outlet pipe, and the outlet of the cold material channel is communicated with a cold material inlet pipe; the cooling water channel is arranged on the cold machine condenser, a refrigerant condensation channel for exchanging heat with the cooling water channel is also arranged on the cold machine condenser, the outlet of the refrigerant evaporation channel is communicated with the inlet of the refrigerant condensation channel through the centrifugal compressor, and the outlet of the refrigerant condensation channel is communicated with the inlet of the refrigerant evaporation channel through the cold machine throttle valve.
The cooling water heat dissipation device is a cooling tower cluster.
The heat pump system comprises a heat pump evaporator and a heat pump condenser, wherein the heat pump evaporator is communicated with an outlet and an inlet of a cooling water channel and is provided with a refrigerant heat pump evaporation channel for exchanging heat with cooling water, a refrigerant heat pump condensation channel for exchanging heat between a refrigerant and domestic water is arranged in the heat pump condenser, the outlet of the refrigerant heat pump evaporation channel is communicated with the inlet of the refrigerant heat pump condensation channel through a vapor compression compressor, and the outlet of the refrigerant heat pump condensation channel is communicated with the inlet of the refrigerant heat pump evaporation channel through a heat pump throttling valve.
The domestic water is communicated with the heat storage water tank.
And valves are arranged on the two communicating pipelines, and the coupling switching of the cooling water heat dissipation device or the heat pump system is realized between the outlet and the inlet of the cooling water channel through the valves.
A communicating valve is arranged between the two communicating pipelines, and the outlet and the inlet of the cooling water channel are communicated with each other in sequence through a valve and a communicating valve to realize the coupling of the heat pump system and the communication of the cooling water heat dissipation device.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
the utility model discloses realized the operation mode of regional cold and hot cogeneration on ice cold-storage system, at first, adopt the millet electricity at night to drive the refrigerating unit and make ice cold-storage, can protect the stability of national electric wire netting, play the effect of "shifting peak and filling valley", secondly, when the system is low-load, utilize the use of cooling tower cluster to make the operating efficiency of refrigerating unit promote greatly; meanwhile, when the system is in high load, the utilization rate of system energy is improved through the coupling of the heat pump system, the phenomenon of 'white smoke' of a cooling tower in winter is solved, and the supply of domestic water is more stable due to the addition of the heat storage water tank.
Drawings
Fig. 1 is a schematic flow chart of the method of the present invention.
Fig. 2 is a schematic structural view of the ice storage tank of the present invention.
The system comprises an ice storage pool 1, a cold machine evaporator 2, a centrifugal compressor 3, a cold machine condenser 4, a cold machine throttling valve 5, a cooling tower cluster 6, a vapor compression compressor 7, a heat pump evaporator 8, a heat pump throttling valve 9, a heat pump condenser 10, a heat storage water tank 11, a user and connecting pipeline 12, a chilled water inlet pipe 13, an ice coil pipe 14, an ethylene glycol inlet pipe 15, an air blowing port 16, an air compressor 17, a chilled water outlet pipe 18 and an ethylene glycol outlet pipe 19.
Detailed Description
The present invention will be described in further detail with reference to examples, but the present invention is not limited thereto.
Example (b):
the embodiment is a cold and heat combined supply method based on an ice cold storage mode, as shown in fig. 1, a refrigerating unit composed of a cold machine evaporator 2 and a cold machine condenser 4 stores ice in an ice storage pool 1 at night when the electricity is low-price at valley, and the effect of 'shifting peaks and filling valleys' of the electricity is achieved, so that the generated high-temperature cooling water can be sent to the refrigerating unit for continuous heat exchange after being subjected to heat dissipation and heat exchange by a cooling tower cluster 6, or sent to a heat pump system composed of a heat pump evaporator 8 and a heat pump condenser 10 to heat domestic water in a heat storage water tank 11, the combined supply of cold and heat for users is achieved, the cooling water is reasonably utilized, the heat supply for the users is increased, and the efficiency and the energy utilization rate of the system are greatly improved.
As shown in figures 1 and 2, in a specific embodiment, when the cold load is low in summer, the temperature of ice-storage cooling water at night is not too high, the control valves F-2, F-3, F-4 and F-6 to F-11 are closed, the valves F-1 and F-5 are opened, the water pumps B-1, B-4, B-5 and B-6 are closed, the valves B-2 and B-3 are opened, and the heat pump unit is not operated, so that the ice making mode is adopted.
The refrigerating unit starts to operate, low-temperature and low-pressure refrigerant liquid exchanges heat with glycol solution in the refrigerator evaporator 2, the glycol solution with heat absorbed at low temperature enters the ice storage tank 1 through the glycol inlet pipe 15 and exchanges heat with chilled water outside the pipe in the ice coil pipe 14 until the freezing phenomenon occurs, the glycol solution after heat exchange is sent out through the glycol outlet pipe 19 and returns to the refrigerator evaporator 2 to continue to exchange heat under the driving of the water pump B-2, and therefore a glycol cycle is completed. The low-temperature low-pressure refrigerant liquid is evaporated into gas after absorbing the heat of the glycol solution, then the gas is sucked into a compression chamber by a gas suction end of a centrifugal compressor 3 for compression, the compressed high-temperature high-pressure refrigerant gas is discharged out of the compressor at a gas exhaust end, enters a condenser 4 of the refrigerator and is cooled and exchanged with low-temperature cooling water from a cooling tower cluster 6, the low-temperature high-pressure refrigerant liquid after heat exchange is reduced in pressure after passing through a throttle valve 5, the low-temperature low-pressure refrigerant gas is changed into low-temperature low-pressure refrigerant gas and returns to the evaporator 2 of the refrigerator, and a refrigeration cycle is completed at the moment. After the circulating cooling water absorbs the heat of the high-temperature refrigerant in the condenser 4 of the refrigerator, the cooling tower cluster 6 carries out natural/forced heat exchange with air, and the circulating cooling water enters the condenser 4 of the refrigerator under the driving of the water pump B-3 to continuously exchange heat after the heat exchange is finished, so that the cooling water circulation is finished.
In the day for cooling, the ice making amount in the previous day and at night is 120% of the predicted cold amount value in the next day, so that in the ice melting and cooling mode, the water pump B-1 is opened, the valves F-10 and F-11 are opened, and other parts are closed. User's return water (12 ℃ chilled water) is driven by a water pump B-1 to enter the ice storage tank 1 through a chilled water inlet pipe 13 to exchange heat with ice, an air compressor 17 of the ice storage tank 1 blows compressed air into the ice storage tank through an air blowing port 16, cold air generated by heat exchange between the chilled water and the ice is blown to a user and a connecting pipeline 12, and low-temperature chilled water after heat exchange is discharged out of the ice storage tank 1 through a chilled water outlet pipe 18 and is supplied to the user through a cold supply pipeline.
In another specific embodiment, when the cooling load is high in summer and the return water temperature of the ice-storage cooling water is high at night, the evaporator 8 of the heat pump system is required to be used for cooling the cooling water. The control valves F-1, F-3 and F-5 to F-11 are closed, the valves F-2 and F-4 are opened, the water pumps B-1, B-4 and B-6 are closed, the valves B-2, B-3, B-4 and B-5 are opened, and the heat pump unit operates, namely a cold and heat supply mode is adopted.
The refrigerating unit starts to operate, low-temperature and low-pressure refrigerant liquid exchanges heat with glycol solution in the refrigerator evaporator 2, the glycol solution with heat absorbed at low temperature enters the ice storage tank 1 and exchanges heat with chilled water outside the ice pipe in the ice coil pipe 14 until the ice phenomenon occurs, the glycol solution after heat exchange returns to the refrigerator evaporator 2 under the driving of the water pump B-2 to continuously exchange heat, and therefore a glycol cycle is completed. The low-temperature low-pressure refrigerant liquid is evaporated into gas after absorbing the glycol solution, then the gas is sucked into a compression chamber by a gas suction end of a centrifugal compressor 3 for compression, the compressed high-temperature high-pressure refrigerant gas is discharged out of the compressor at a gas discharge end, enters a condenser 4 of the refrigerator, and is cooled and heat exchanged with low-temperature cooling water from a heat pump evaporator 8, the low-temperature high-pressure refrigerant liquid after heat exchange is subjected to pressure drop through a throttle valve 5 of the refrigerator, and is changed into low-temperature low-pressure refrigerant gas to return to the evaporator 2 of the refrigerator, and a refrigeration cycle is completed at the moment. After absorbing the heat of the high-temperature refrigerant in the condenser 4 of the cooler, the circulating cooling water flows through the heat pump evaporator 8 to carry out heat exchange and temperature reduction, and then enters the condenser 4 of the cooler to continuously carry out heat exchange by being driven by the water pump B-4, so that a cooling water circulation is completed. The low-temperature refrigerant in the heat pump evaporator 8 absorbs the heat of the circulating cooling water and then evaporates into gas, then the gas is sucked into a compression chamber by a gas suction end of a vapor compression type compressor 7 to be compressed, the compressed high-temperature high-pressure refrigerant gas is discharged out of the compressor at a gas discharge end and enters a heat pump condenser 10 to exchange heat with low-temperature circulating water from a heat storage water tank 11, after the heat exchange is completed, the low-temperature high-pressure refrigerant liquid is subjected to pressure drop through a heat pump throttle valve 9 and then is changed into low-temperature low-pressure refrigerant gas to return to the heat pump evaporator 8, and at the moment, a heating cycle is completed. The high-temperature circulating water heated by the heat pump condenser 10 enters the heat storage water tank 11 to exchange heat with the phase change heat storage capsules in the water tank, and then returns to the heat pump condenser 10 to exchange heat under the drive of the water pump B-5, and a heat storage process is completed at the moment.
In the daytime cooling, because the ice making amount in the previous day and at night is 120% of the predicted value of the cold energy used in the next day, the heat of the heat storage water tank 11 can be supplied to the water used in daily life of the user as much as possible, and at the moment, the mode is a combined supply mode of cold water and hot water used in daily life, the water pumps B-1 and B-6 are opened, the valves F-7, F-8, F-10 and F-11 are opened, and other components are closed. User return water (chilled water at 12 ℃) enters the ice storage tank 1 through the chilled water inlet pipe 13 to exchange heat with ice under the driving of the water pump B-1, and the low-temperature chilled water after heat exchange is discharged out of the ice storage tank 1 through the chilled water outlet pipe 18 and is supplied to users through a cooling supply pipeline. Domestic hot water comes out from a user under the drive of the water pump B-6, enters the heat storage water tank 11 to exchange heat with the phase change heat storage capsules in the water tank, is supplied to the user through a heat supply pipeline after heat exchange is finished, and then completes a heat release cycle.
When the mode is used for cooling in winter, F-6 and F-9 can be selected to be opened and F-7 and F-8 can be closed according to the heat load requirement of a user, and domestic hot water generated by the heat pump condenser 10 is directly supplied to the user for use; f-7 and F-8 can be selected to be opened, F-6 and F-9 can be closed, and the water can be supplied at any time after being stored in the heat storage water tank 11.
In another specific embodiment, if the cooling load is too high in summer and the return water temperature of the ice-storage cooling water is high at night, the evaporator 8 of the heat pump system is required to be used for cooling the cooling water firstly and then the cooling water is cooled by the cooling tower cluster 6. The control valves F-1, F-4 and F-6 to F-11 are closed, the valves F-2, F-3 and F-5 are opened, the water pumps B-1 and B-6 are closed, the valves B-2, B-3, B-4 and B-5 are opened, and the heat pump unit operates in a cooling and heat storage mode.
The refrigerating unit starts to operate, low-temperature and low-pressure refrigerant liquid exchanges heat with glycol solution in the refrigerator evaporator 2, the low-temperature glycol absorbing heat enters the ice storage tank 1 and then exchanges heat with chilled water outside the coil pipe in the ice coil pipe 14 until the freezing phenomenon occurs, the glycol solution after heat exchange returns to the refrigerator evaporator 2 under the driving of the water pump B-2 to continuously exchange heat, and therefore a glycol cycle is completed. The low-temperature low-pressure refrigerant liquid is evaporated into gas after absorbing the glycol solution, then the gas is sucked into a compression chamber by a gas suction end of a centrifugal compressor 3 for compression, the compressed high-temperature high-pressure refrigerant gas is discharged out of the compressor at a gas exhaust end, enters a condenser 4 of the refrigerator, and is cooled and heat exchanged with low-temperature cooling water from a cooling tower cluster 6, the low-temperature high-pressure refrigerant liquid after heat exchange is subjected to pressure drop after passing through a throttle valve 5 of the refrigerator, and is changed into low-temperature low-pressure refrigerant gas to return to an evaporator 2 of the refrigerator, and a refrigeration cycle is completed at the moment. After absorbing the heat of the high-temperature refrigerant in the condenser 4 of the cooler, the circulating cooling water flows through the heat pump evaporator 8 to carry out heat exchange and cooling, then enters the cooling tower cluster 6 to carry out natural/forced heat exchange with air by the drive of the water pump B-4, and enters the condenser 4 of the cooler to continue heat exchange under the drive of the water pump B-3 after the heat exchange is finished, so that a cooling water cycle is finished.
The low-temperature refrigerant in the heat pump evaporator 8 absorbs the heat of the circulating cooling water and then evaporates into gas, then the gas is sucked into a compression chamber by a gas suction end of a vapor compression type compressor 7 to be compressed, the compressed high-temperature high-pressure refrigerant gas is discharged out of the compressor at a gas discharge end and enters a heat pump condenser 10 to exchange heat with low-temperature circulating water from a heat storage water tank 11, after the heat exchange is completed, the low-temperature high-pressure refrigerant liquid is subjected to pressure drop through a heat pump throttle valve 9 and then is changed into low-temperature low-pressure refrigerant gas to return to the heat pump evaporator 8, and at the moment, a heating cycle is completed. The high-temperature circulating water heated by the heat pump condenser 10 enters the heat storage water tank 11 to exchange heat with the phase change heat storage capsules in the water tank, and then returns to the heat pump condenser 10 to exchange heat under the drive of the water pump B-5, and a heat storage process is completed at the moment.
In the daytime, because the ice making amount in the previous day and at night is 120% of the predicted value of the cold energy used in the next day, the heat of the heat storage water tank 11 can be supplied to the domestic water of the user, at the moment, the mode is a cold water and daily domestic hot water combined supply mode, the water pumps B-1 and B-6 are opened, the valves F-7, F-8, F-10 and F-11 are opened, and other components are closed. User return water (chilled water at 12 ℃) enters the ice storage tank 1 through the chilled water inlet pipe 13 to exchange heat with ice under the driving of the water pump B-1, and the low-temperature chilled water after heat exchange is discharged out of the ice storage tank 1 through the chilled water outlet pipe 18 and is supplied to users through a cooling supply pipeline. Domestic hot water comes out from a user under the drive of the water pump B-6, enters the heat storage water tank 11 to exchange heat with the phase change heat storage capsules in the water tank, is supplied to the user through a heat supply pipeline after heat exchange is finished, and then completes a heat release cycle.
In the above description, the ethylene glycol inlet pipe 15 is the cold charge inlet pipe, the ethylene glycol outlet pipe 19 is the cold charge outlet pipe. Besides, because the trend of above-mentioned embodiment with heat transfer medium is right the utility model discloses a technical scheme has carried out detailed explanation, consequently, based on the utility model provides a cold material passageway and the refrigerant evaporation passageway of cold machine evaporimeter, the cooling water passageway and the refrigerant condensation passageway of cold machine condenser, the refrigerant heat pump evaporation passageway of heat pump evaporimeter, the refrigerant heat pump condensation passageway of heat pump condenser, obvious to the field person, for this reason, no longer give unnecessary details.
The above is only the preferred embodiment of the present invention, not to the limitation of the present invention in any form, all the technical matters of the present invention all fall into the protection scope of the present invention to any simple modification and equivalent change of the above embodiments.
Claims (8)
1. A combined cooling and heating system is characterized in that: the system comprises a refrigerating unit which is connected with an ice storage pool (1) and provides cold material for making ice, wherein a cooling water channel for exchanging heat for the cold material is arranged on the refrigerating unit, two parallel-connected communication pipelines are arranged between an outlet and an inlet of the cooling water channel, a cooling water heat dissipation device is arranged on one communication pipeline, and the other communication pipeline is coupled with a heat pump system which is used for communicating domestic water and heating the domestic water.
2. The combined cooling and heating system according to claim 1, wherein: establish chilled water inlet tube (13), chilled water outlet pipe (18), cold burden inlet tube and cold burden outlet pipe on ice storage pool (1), establish ice coil pipe (14) of intercommunication cold burden inlet tube and cold burden outlet pipe in ice storage pool (1), air blow mouth (16) of intercommunication air compressor (17) are established to ice storage pool (1) bottom, and cold burden inlet tube and cold burden outlet pipe communicate refrigerating unit respectively.
3. The combined cooling and heating system according to claim 1, wherein: the refrigerating unit comprises a cold machine evaporator (2) and a cold machine condenser (4), wherein a cold material channel and a refrigerant evaporation channel for heat exchange of cold material and refrigerant are arranged on the cold machine evaporator (2), the inlet of the cold material channel is communicated with a cold material outlet pipe, and the outlet of the cold material channel is communicated with a cold material inlet pipe; the cooling water channel is arranged on the cold machine condenser (4), the cold machine condenser (4) is also provided with a refrigerant condensation channel for exchanging heat with the cooling water channel, the outlet of the refrigerant evaporation channel is communicated with the inlet of the refrigerant condensation channel through the centrifugal compressor (3), and the outlet of the refrigerant condensation channel is communicated with the inlet of the refrigerant evaporation channel through the cold machine throttle valve (5).
4. The combined cooling and heating system according to claim 1, wherein: the cooling water heat dissipation device is a cooling tower cluster (6).
5. The combined cooling and heating system according to claim 1, wherein: the heat pump system comprises a heat pump evaporator (8) and a heat pump condenser (10), wherein the heat pump evaporator (8) is communicated with an outlet and an inlet of a cooling water channel and is provided with a refrigerant heat pump evaporation channel for exchanging heat with cooling water, a refrigerant heat pump condensation channel for exchanging heat between a refrigerant and domestic water is arranged in the heat pump condenser (10), an outlet of the refrigerant heat pump evaporation channel is communicated with an inlet of the refrigerant heat pump condensation channel through a vapor compression compressor (7), and an outlet of the refrigerant heat pump condensation channel is communicated with an inlet of the refrigerant heat pump evaporation channel through a heat pump throttling valve (9).
6. A combined cooling and heating system according to claim 5, wherein: the domestic water is communicated with the heat storage water tank (11).
7. The combined cooling and heating system according to claim 1, wherein: and valves are arranged on the two communicating pipelines, and the coupling switching of the cooling water heat dissipation device or the heat pump system is realized between the outlet and the inlet of the cooling water channel through the valves.
8. The combined cooling and heating system according to claim 7, wherein: a communicating valve is arranged between the two communicating pipelines, and the outlet and the inlet of the cooling water channel are communicated with each other in sequence through a valve and a communicating valve to realize the coupling of the heat pump system and the communication of the cooling water heat dissipation device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123283660.XU CN216481374U (en) | 2021-12-24 | 2021-12-24 | Cold and hot combined supply system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123283660.XU CN216481374U (en) | 2021-12-24 | 2021-12-24 | Cold and hot combined supply system |
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| CN216481374U true CN216481374U (en) | 2022-05-10 |
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| CN202123283660.XU Active CN216481374U (en) | 2021-12-24 | 2021-12-24 | Cold and hot combined supply system |
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