CN118066773A - Coupled type waste heat utilization cold accumulation and supply system and control method thereof - Google Patents
Coupled type waste heat utilization cold accumulation and supply system and control method thereof Download PDFInfo
- Publication number
- CN118066773A CN118066773A CN202410452540.7A CN202410452540A CN118066773A CN 118066773 A CN118066773 A CN 118066773A CN 202410452540 A CN202410452540 A CN 202410452540A CN 118066773 A CN118066773 A CN 118066773A
- Authority
- CN
- China
- Prior art keywords
- water
- cold
- cooling
- chilled
- circulating pump
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 239000002918 waste heat Substances 0.000 title claims abstract description 45
- 238000009825 accumulation Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000001816 cooling Methods 0.000 claims abstract description 201
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 640
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 claims description 142
- 239000003546 flue gas Substances 0.000 claims description 26
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 25
- 239000000498 cooling water Substances 0.000 claims description 15
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 230000001502 supplementing effect Effects 0.000 description 11
- 230000001105 regulatory effect Effects 0.000 description 8
- 230000005611 electricity Effects 0.000 description 6
- 239000002737 fuel gas Substances 0.000 description 5
- 238000005057 refrigeration Methods 0.000 description 5
- 239000008400 supply water Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D15/00—Devices not covered by group F25D11/00 or F25D13/00, e.g. non-self-contained movable devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
- F25B1/04—Compression machines, plants or systems with non-reversible cycle with compressor of rotary type
- F25B1/047—Compression machines, plants or systems with non-reversible cycle with compressor of rotary type of screw type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
- F25B15/02—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas
- F25B15/06—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas the refrigerant being water vapour evaporated from a salt solution, e.g. lithium bromide
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B27/00—Machines, plants or systems, using particular sources of energy
- F25B27/02—Machines, plants or systems, using particular sources of energy using waste heat, e.g. from internal-combustion engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/005—Mounting of control devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Materials Engineering (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses a coupled type waste heat utilization cold accumulation and cooling system and a control method thereof. The invention can effectively ensure the stability of the cooling system and reduce the running cost of the cooling system.
Description
Technical Field
The invention relates to the technical field of comprehensive utilization of heat energy, in particular to a coupled type waste heat utilization cold accumulation and supply system and a control method thereof.
Background
The waste heat resources of the fuel gas power plant are fully utilized, waste materials can be changed into valuable materials, the comprehensive efficiency of the power plant energy utilization is effectively improved, the carbon dioxide emission is reduced, and the recovered waste heat can be converted into other forms of energy supply. For example, the utility model with publication number CN213272569U discloses a combined cooling, heating and power energy storage system which has the capabilities of heat storage, cold storage and peak regulation, and has good stability and high heat efficiency. However, the utility model has insufficient design of refrigeration force redundancy and large fluctuation of refrigeration force output.
Disclosure of Invention
In the existing residual heat utilization cold accumulation and supply system, the design of refrigeration force redundancy is insufficient, and the output fluctuation of refrigeration force is large.
The technical scheme of the invention is as follows: the cold-storage and cooling system comprises a cooling system body, wherein the cooling system body comprises a waste heat boiler and a flue gas-hot water heat exchanger connected with the waste heat boiler through a flue gas pipeline, the cooling system body further comprises an air cooling screw water chilling unit and a cold storage water tank, the cold storage water tank is connected with a cooling user end through a chilled water supply pipeline and a chilled water return pipeline, the flue gas-hot water heat exchanger is connected with a hot water type lithium bromide water chilling unit through a pipeline, and the hot water type lithium bromide water chilling unit and the air cooling screw water chilling unit are connected in parallel on the chilled water supply pipeline and the chilled water return pipeline. By combining abundant waste heat resources of a fuel gas electric plant and urgent requirements of energy conservation and emission reduction of the power plant, the invention can realize cascade utilization of energy sources, effectively improve the energy consumption level of the power plant and reduce the carbon emission by utilizing the flue gas waste heat of the fuel gas electric plant to drive the refrigeration and the cold storage water tank to be coupled, fully utilizes the waste heat resources, realizes changing waste into valuables, takes the cold storage water tank and the air-cooled screw water chiller unit as emergency cold sources and energy-saving regulation cold sources of a cold supply system, provides a redundant design of a frozen water source for the system, reduces the running cost of the cold supply system, can effectively ensure the stability of the cold supply system, and has wide application prospect in the scenes of the fuel gas electric plant with abundant waste heat resources.
Preferably, the chilled water return pipeline comprises a main pipeline and two parallel branches, the cold accumulation water tank is connected to one of the branches and is provided with a cold release circulating pump, the hot water type lithium bromide water chilling unit and the air cooling screw water chilling unit are connected to the other branch in parallel and are provided with chilled water circulating pumps, and the branches where the cold release circulating pumps and the chilled water circulating pumps are located are respectively provided with an electric switch valve. The pipeline design realizes the parallel connection of the hot water type lithium bromide water chilling unit, the air-cooled screw water chilling unit and the cold storage water tank, and ensures that the hot water type lithium bromide water chilling unit, the air-cooled screw water chilling unit and the cold storage water tank can be used for cooling a cooling user side under different conditions.
Preferably, the number of the cold release circulating pumps and the number of the chilled water circulating pumps are two, the two cold release circulating pumps are connected in parallel, and the two chilled water circulating pumps are connected in parallel. The cold release circulating pump and the chilled water circulating pump are arranged in a redundant mode, one of the cold release circulating pump and the chilled water circulating pump is normally used, the other one of the cold release circulating pump and the chilled water circulating pump is standby, and the running continuity and stability of the system can be improved.
The control method of the coupled type waste heat utilization cold accumulation and supply system comprises five cold supply modes, wherein the first cold supply mode is a hot water type lithium bromide water chilling unit for independent cold supply; the second cooling mode is to cool the hot water type lithium bromide water chilling unit and simultaneously cool the cold storage water tank; the third cooling mode is to independently cool the air-cooled screw water chiller; the fourth cooling mode is to cool the air-cooled screw water chilling unit and simultaneously cool the air-cooled screw water chilling unit by using a cool storage water tank; the fifth cooling mode is to cool the cold storage water tank independently. The method relies on the redundant design of the frozen water source, can reasonably start different cold supply modes according to different conditions, ensures the stability of the cold supply system and reduces the running cost of the cold supply system.
Preferably, in the first cooling mode, the air-cooled screw water chiller and the cold accumulation water tank exit from running, and the chilled water backwater flowing out from the cold supply user end is subjected to water quality treatment by a full-automatic water filter and then returns to the evaporator side of the hot water type lithium bromide water chiller to be cooled under the action of a chilled water circulating pump, and then is used as chilled water to supply water to the cold supply user end.
Preferably, in the second cooling mode, the air-cooled screw water chiller is withdrawn from operation, the cold storage water tank stops outputting, a water return pipeline branch connected with the cold storage water tank is cut off, chilled water returned from the self-cooling user end is subjected to water quality treatment by a full-automatic water filter and then completely returns to the evaporator side of the hot water type lithium bromide water chiller under the action of a chilled water circulating pump, one part of cooled water is used as chilled water to supply water to the cold supply user end, and the other part of cooled water is supplied to the cold storage water tank for cold storage.
Preferably, in the third cooling mode, the hot water type lithium bromide water chiller and the cold storage water tank are out of operation, and the chilled water backwater flowing out from the self-cooling user end is subjected to water quality treatment by a full-automatic water filter and then returned to the evaporator side of the air cooling screw water chiller for cooling under the action of a chilled water circulating pump, and then is used as chilled water for supplying water to the cooling user end.
Preferably, in the fourth cooling mode, the hot water type lithium bromide water chilling unit is withdrawn from operation, the cold storage water tank stops outputting, a water return pipeline branch connected with the cold storage water tank is cut off, chilled water backwater flowing out from the self-cooling user end is subjected to water quality treatment by a full-automatic water filter and then is returned to the evaporator side of the air cooling screw water chilling unit under the action of a chilled water circulating pump, part of cooled water is used as chilled water to supply water to the cold supply user end, and the other part of cooled water is supplied to the cold storage water tank for cold storage.
Preferably, in the fifth cooling mode, the hot water type lithium bromide water chilling unit and the air cooling screw water chilling unit are out of operation; cold water in the cold storage water tank is used as chilled water supply to supply water to a cold supply user end, and chilled water backwater flowing out of the cold supply user end is returned to the cold storage water tank under the action of a cold release circulating pump after being subjected to water quality treatment by a full-automatic water filter.
Preferably, the first or second cooling mode is preferably employed; in the first or second cooling mode, when the tail flue gas of the waste heat boiler is insufficient, the tail flue gas of the waste heat boiler is preferentially switched to a fifth cooling mode; in the fifth cooling mode, when the outlet water temperature T of the cold accumulation water tank monitored by the temperature sensor is more than 7 ℃, switching to a third or fourth cooling mode; when the system cooling capacity in the first or third cooling mode is greater than the terminal cooling requirement, the system is switched to the second or fourth cooling mode.
The beneficial effects of the invention are as follows:
The waste heat resource of the fuel gas power plant is coupled with the cold accumulation system, so that the cascade utilization of energy sources is realized, and the energy consumption and the carbon emission of the cold supply system are reduced.
The emergency cold source is provided, and the stable and reliable operation of the cold supply system is ensured.
The cold storage water tank is used as an energy-saving adjusting cold source, so that the running cost of the cold supply system is reduced, and the system is beneficial to high efficiency and energy saving.
Drawings
FIG. 1 is a schematic diagram of the configuration of the present invention;
FIG. 2 is a schematic flow chart of the first cooling mode according to the present invention;
FIG. 3 is a schematic flow chart of the second cooling mode according to the present invention;
FIG. 4 is a schematic flow chart of a third cooling mode according to the present invention;
FIG. 5 is a flow chart illustrating a fourth cooling mode according to the present invention;
fig. 6 is a schematic flow chart of a fifth cooling mode in the present invention.
In the figure, a 1-waste heat boiler, a 2-flue gas-hot water heat exchanger, a 3-hot water circulating pump, a 4-hot water type lithium bromide water chilling unit, a 5-cooling water circulating pump, a 6-cooling tower, a 7-air cooling screw water chilling unit, an 8-chilled water circulating pump, a 9-cold storage water tank, a 10-cold release circulating pump, a 11-water separator, a 12-water collector, a 13-full-automatic water filter, a 14-automatic constant pressure water supplementing unit, a 15-temperature sensor, a 16-chilled water supply pipeline, a 17-chilled water return pipeline, a 18-flue gas pipeline, a 19-hot water supply pipeline, a 20-hot water return pipeline and a 21-switching pipeline are arranged.
Detailed Description
The invention will be further described with reference to specific embodiments in the drawings.
Example 1:
As shown in fig. 1, the coupled type waste heat utilization cold accumulation and cooling system comprises a cooling system body, wherein the cooling system body is composed of a waste heat boiler 1, a flue gas-hot water heat exchanger 2, a hot water circulating pump 3, a hot water type lithium bromide water chilling unit 4, a cooling water circulating pump 5, a cooling tower 6, an air cooling screw water chilling unit 7, a chilled water circulating pump 8, a cold accumulation water tank 9, a cold release circulating pump 10, a water separator 11 and a water collector 12, the waste heat boiler 1 is connected with the flue gas-hot water heat exchanger 2 through a flue gas pipeline 18, the flue gas-hot water heat exchanger 2 is connected with the hot water type lithium bromide water chilling unit 4 through a hot water supply pipeline 19 and a hot water return pipeline 20, and the hot water return pipeline 20 is connected with the hot water circulating pump 3; the cooling tower 6 is connected to the condenser side of the hot water type lithium bromide water chiller 4 through a cooling water pipe provided with a cooling water circulation pump 5. The cold storage water tank 9 is connected with a cold supply user end through a chilled water supply pipeline 16 and a chilled water return pipeline 17, and the cold supply user end is positioned between the water separator 11 and the water collector 12 and is connected with the water separator 11 and the water collector 12 through a user pipe network. The chilled water return pipeline 17 comprises a main road and two parallel branches, the two branches are a first branch and a second branch respectively, the cold accumulation water tank 9 is connected on the first branch, the cold release circulating pump 10 is arranged on the branch, the hot water type lithium bromide water chilling unit 4 and the air cooling screw water chilling unit 7 are connected on the second branch in parallel, the second branch is provided with a secondary main road and two parallel secondary branches, the chilled water circulating pump 8 is arranged on the secondary main road, the hot water type lithium bromide water chilling unit 4 and the air cooling screw water chilling unit 7 are respectively connected on the two secondary branches, a switching pipeline 21 is bridged between the two branches, the main road of the chilled water return pipeline 17 is connected on the water collector 12, and the main road is provided with the full-automatic water filter 13. The chilled water supply pipeline 16 comprises a main road and three parallel branches, the main road of the chilled water supply pipeline 16 is connected to the water separator 11, and the three branches are respectively connected to the hot water type lithium bromide water chilling unit 4, the air cooling screw water chilling unit 7 and the cold storage water tank 9. The driving heat source of the hot water type lithium bromide water chiller 4 is hot water after the flue gas-hot water heat exchanger 2 exchanges heat with the tail flue gas of the waste heat boiler 1. An automatic constant-pressure water supplementing unit 14 is connected between the full-automatic water filter 13 and the water collector 12 on the chilled water return pipeline 17. A temperature sensor 15 is arranged on a branch of a chilled water supply pipeline 16 connected with the cold storage water tank 9, and the temperature sensor 15 is used for monitoring the cooling water temperature of the cold storage water tank 9. The number of the cold release circulating pumps 10 and the number of the chilled water circulating pumps 8 are two, the two cold release circulating pumps 10 are connected in parallel, and the two chilled water circulating pumps 8 are connected in parallel.
The flue gas pipeline 18 of the waste heat boiler 1 connected with the flue gas-hot water heat exchanger 2 is provided with a flue electric valve F1, and the flue electric valve F1 is opened and closed according to the running condition of the hot water type lithium bromide water chilling unit 4. A flue gas pipeline bypass is arranged on the flue gas pipeline 18, and a flue gas electric valve F2 is arranged on the flue gas pipeline 18 bypass. An electric switch valve F9 is arranged on a secondary trunk of the second branch, and electric regulating valves F3 and F4 are respectively arranged on a secondary branch where the air-cooled screw water chilling unit 7 is located and a chilled water return side of a secondary branch where the hot water type lithium bromide water chilling unit 4 is located. An electric switch valve F5 is arranged on a branch of a chilled water supply pipeline 16 connected with the cold accumulation water tank 9, and an electric switch valve F6 is arranged on a chilled water return pipeline 17 where the cold release circulating pump 10 is positioned. An electric regulating valve F7 is arranged on the chilled water supply pipeline 16 upstream of the water separator 11. The switching pipe 21 is provided with an electric switching valve F8. An electric switch valve F6 and an electric switch valve F10 are arranged on a first branch of the chilled water return pipeline 17 where the cold release circulating pump 10 is arranged, and the cold release circulating pump 10 is arranged between the electric switch valve F6 and the electric switch valve F10. The hot water type lithium bromide water chilling unit 4, the air cooling screw water chilling unit 7, the automatic constant pressure water supplementing unit 14, and the valves and pumps are controlled to operate by a PLC control device.
The invention also provides an air-cooled screw water chilling unit 7 and a cold storage water tank 9, wherein the hot water type lithium bromide water chilling unit 4 is used as a main frozen water source, the air-cooled screw water chilling unit 7 and the cold storage water tank 9 are used as backup of the hot water type lithium bromide water chilling unit 4, redundant design of the frozen water source is provided for the system, and when the waste heat is insufficient and the hot water type lithium bromide water chilling unit 4 cannot refrigerate, the air-cooled screw water chilling unit 4 can start refrigerate at any time under the power drive to make up for the lack of refrigerating power of the hot water type lithium bromide water chilling unit 4. The cold storage water tank 9 has no refrigerating capacity, can store a part of cold energy when the hot water type lithium bromide water chilling unit 9 or the air cooling screw water chilling unit 7 refrigerates, and can output the cold energy preferentially when the waste heat of the power plant is insufficient to supply cold to a cold supply user side; in addition, when the waste heat of the power plant is insufficient, the cold storage water tank for peak-valley electricity price can be used for storing cold, and the cold storage water tank 9 is used for supplying cold during peak electricity price so as to reduce electricity cost.
The control method divides the cooling system into five cooling modes and performs corresponding control, wherein the first cooling mode is that the hot water type lithium bromide water chilling unit 4 is used for independently cooling, the second cooling mode is that the hot water type lithium bromide water chilling unit 4 is used for cooling and simultaneously cooling by using the cold storage water tank 9, the third cooling mode is that the air cooling screw water chilling unit 7 is used for independently cooling, the fourth cooling mode is that the air cooling screw water chilling unit 7 is used for cooling and simultaneously cooling by using the cold storage water tank 9, and the fifth cooling mode is that the cold storage water tank 9 is used for independently cooling.
As shown in fig. 2, in the first cooling mode, the waste heat boiler 1, the flue gas-hot water heat exchanger 2, the hot water circulating pump 3, the hot water type lithium bromide water chiller 4, the cooling water circulating pump 5, the cooling tower 6, the chilled water circulating pump 8, the automatic constant pressure water supplementing unit 14 and the full-automatic water filter 13 are operated, the air cooling screw water chiller 7 and the cold storage water tank 9 do not participate in operation, the cold storage water tank 9 stops outputting, and the electric switch valves F3, F6, F8 and F10 are disconnected to cut off the branch of the chilled water supply pipeline 16 and the branch of the chilled water return pipeline 17 connected with the cold storage water tank 9; the chilled water backwater flowing out from the self-cooling user terminal is subjected to water quality treatment by a full-automatic water filter 13, returns to the evaporator side of the hot water type lithium bromide water chilling unit 4 under the action of the chilled water circulating pump 8, is cooled, and is used as chilled water to be supplied to the cooling user terminal through a water separator 11.
As shown in fig. 3, in the second cooling mode, the waste heat boiler 1, the flue gas-hot water heat exchanger 2, the hot water circulating pump 3, the hot water type lithium bromide water chiller 4, the cooling water circulating pump 5, the cooling tower 6, the air cooling screw water chiller 7, the chilled water circulating pump 8, the cold storage water tank 9, the automatic constant pressure water supplementing unit 14 and the full automatic water filter 13 are operated, the air cooling screw water chiller 7 does not participate in operation, and the electric switch valves F3, F6 and F10 are disconnected to disconnect the branch of the chilled water return pipeline 17 connected with the cold storage water tank 9, so that the chilled water is not received from the water collector 12 to return; the return water of the chilled water from the cooling user starts to flow back through the water collector 12, after being subjected to water quality treatment through the full-automatic water filter 13, the return water is converged with a pipeline junction point between the electric switch valves F8 and F9 of the stored cold water released by the cold storage water tank 9, returns to the evaporator side of the hot water type lithium bromide water chilling unit 4 under the action of the chilled water circulating pump 8, and after the chilled water is cooled, part of the chilled water after being distributed with water quantity by the electric regulating valve F7 is used as chilled water to be supplied to the cooling user through the water distributor 11, and the other part of the chilled water is supplied to the cold storage water tank 9 for cold storage.
As shown in fig. 4, in the third cooling mode, the air-cooled screw water chiller 7, the chilled water circulation pump 8, the automatic constant-pressure water replenishing unit 14 and the full-automatic water filter 13 are operated, the hot water type lithium bromide water chiller 4 and the cold storage water tank 9 do not participate in operation, and the electric switch valves F4, F5, F6, F8 and F10 are disconnected to cut off the branch of the chilled water supply pipeline 16 and the branch of the chilled water return pipeline 17 connected with the cold storage water tank 9, so that the cold storage water tank 9 stops inputting and outputting; the chilled water backwater flowing out from the self-cooling user end is subjected to water quality treatment by a full-automatic water filter 13, returns to the evaporator side of the air-cooled screw water chilling unit 7 under the action of the chilled water circulating pump 8, is cooled, and is used as chilled water supply to the cooling user end through a water separator 11 for cooling.
As shown in fig. 5, in the fourth cooling mode, the air-cooled screw water chiller 7, the chilled water circulation pump 8, the cold storage water tank 9, the automatic constant-pressure water replenishing unit 14 and the full-automatic water filter 13 operate, the hot water type lithium bromide water chiller 4 does not participate in operation, and the electric switch valves F4, F6 and F10 are disconnected; the chilled water backwater flowing out from the self-cooling user end is subjected to water quality treatment through a full-automatic water filter 13 and then is converged with a pipeline junction point between the electric switch valves F8 and F9 of stored cold water released by the cold storage water tank 9, the chilled water returns to the evaporator side of the air-cooled screw water chilling unit 7 under the action of the chilled water circulating pump 8, a part of cooled chilled water is used as chilled water to be supplied to the cold supply user end through a water separator 11 after the electric regulating valve F7 distributes water, and the other part of cooled chilled water is supplied to the cold storage water tank 9 for cold storage.
As shown in fig. 6, in the fifth cooling mode, the cold storage water tank 9, the cold release circulation pump 10, the automatic constant pressure water supplementing unit 14 and the full-automatic water filter 13 operate, the hot water type lithium bromide water chilling unit 4 and the air cooling screw water chilling unit 7 do not participate in operation, and the electric switch valves F3, F4, F8 and F9 are disconnected, so that the chilled water backwater only flows back to the cold storage water tank 9; the cold water in the cold storage water tank 9 is used as chilled water to be supplied to a cold supply user end through a water separator 11, and chilled water backwater flowing out of the cold supply user end is returned to the cold storage water tank 9 under the action of a cold release circulating pump 10 after being subjected to water quality treatment through a full-automatic water filter 13.
The five cooling modes preferably adopt a first cooling mode; in the first cooling mode, when the tail flue gas of the waste heat boiler is insufficient, the tail flue gas of the waste heat boiler is preferentially switched to a fifth cooling mode; in the fifth cooling mode, when the water outlet temperature t=8 ℃ of the cold accumulation water tank 9 monitored by the temperature sensor 15 is switched to the third cooling mode; in the first cooling mode, when the cooling capacity of the system is larger than the terminal cooling requirement, the system is switched to the second cooling mode.
The valve opening conditions in the different cooling modes are shown in the following table:
| First cooling mode | Second cooling mode | Third cooling mode | Fourth cooling mode | Fifth cooling mode | |
| F1 | Opening device | Opening device | Switch for closing | Switch for closing | Switch for closing |
| F2 | Switch for closing | Switch for closing | Opening device | Opening device | Opening device |
| F3 | Switch for closing | Switch for closing | Opening device | Opening device | Switch for closing |
| F4 | Opening device | Opening device | Switch for closing | Switch for closing | Switch for closing |
| F5 | Switch for closing | Opening device | Switch for closing | Opening device | Opening device |
| F6 | Switch for closing | Switch for closing | Switch for closing | Switch for closing | Opening device |
| F7 | Opening device | Opening device | Opening device | Opening device | Opening device |
| F8 | Switch for closing | Opening device | Switch for closing | Opening device | Switch for closing |
| F9 | Opening device | Opening device | Opening device | Opening device | Switch for closing |
| F10 | Switch for closing | Switch for closing | Switch for closing | Switch for closing | Opening device |
The specific embodiments described herein are merely illustrative of the principles and functions of the present invention, and are not meant to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. It is therefore intended that all equivalent modifications and changes made by those skilled in the art without departing from the spirit and technical spirit of the present invention shall be covered by the appended claims.
Example 2:
The cold accumulation and cooling system comprises a cooling system body, wherein the cooling system body comprises a waste heat boiler 1, a flue gas-hot water heat exchanger 2, a hot water circulating pump 3, a hot water type lithium bromide water chilling unit 4, a cooling water circulating pump 5, a cooling tower 6, an air cooling screw water chilling unit 7, a chilled water circulating pump 8, a cold accumulation water tank 9, a cold release circulating pump 10, a water separator 11 and a water collector 12, the waste heat boiler 1 is connected with the flue gas-hot water heat exchanger 2 through a flue gas pipeline 18, the flue gas-hot water heat exchanger 2 is connected with the hot water type lithium bromide water chilling unit 4 through a hot water supply pipeline 19 and a hot water return pipeline 20, and the hot water return pipeline 20 is connected with the hot water circulating pump 3; the cooling tower 6 is connected to the condenser side of the hot water type lithium bromide water chiller 4 through a cooling water pipe provided with a cooling water circulation pump 5. The cold storage water tank 9 is connected with a cold supply user end through a chilled water supply pipeline 16 and a chilled water return pipeline 17, and the cold supply user end is positioned between the water separator 11 and the water collector 12 and is connected with the water separator 11 and the water collector 12 through a user pipe network. The chilled water return pipeline 17 comprises a main road and two parallel branches, the two branches are a first branch and a second branch respectively, the cold accumulation water tank 9 is connected on the first branch, the cold release circulating pump 10 is arranged on the branch, the hot water type lithium bromide water chilling unit 4 and the air cooling screw water chilling unit 7 are connected on the second branch in parallel, the second branch is provided with a secondary main road and two parallel secondary branches, the chilled water circulating pump 8 is arranged on the secondary main road, the hot water type lithium bromide water chilling unit 4 and the air cooling screw water chilling unit 7 are respectively connected on the two secondary branches, a switching pipeline 21 is bridged between the two branches, the main road of the chilled water return pipeline 17 is connected on the water collector 12, and the main road is provided with the full-automatic water filter 13. The chilled water supply pipeline 16 comprises a main road and three parallel branches, the main road of the chilled water supply pipeline 16 is connected to the water separator 11, and the three branches are respectively connected to the hot water type lithium bromide water chilling unit 4, the air cooling screw water chilling unit 7 and the cold storage water tank 9. The driving heat source of the hot water type lithium bromide water chiller 4 is hot water after the flue gas-hot water heat exchanger 2 exchanges heat with the tail flue gas of the waste heat boiler 1. An automatic constant-pressure water supplementing unit 14 is connected between the full-automatic water filter 13 and the water collector 12 on the chilled water return pipeline 17. A temperature sensor 15 is arranged on a branch of a chilled water supply pipeline 16 connected with the cold storage water tank 9, and the temperature sensor 15 is used for monitoring the cooling water temperature of the cold storage water tank 9. The number of the cold release circulating pumps 10 and the number of the chilled water circulating pumps 8 are two, the two cold release circulating pumps 10 are connected in parallel, and the two chilled water circulating pumps 8 are connected in parallel.
The flue gas pipeline 18 of the waste heat boiler 1 connected with the flue gas-hot water heat exchanger 2 is provided with a flue electric valve F1, and the flue electric valve F1 is opened and closed according to the running condition of the hot water type lithium bromide water chilling unit 4. A flue gas pipeline bypass is arranged on the flue gas pipeline 18, and a flue gas electric valve F2 is arranged on the flue gas pipeline 18 bypass. An electric switch valve F9 is arranged on a secondary trunk of the second branch, and electric regulating valves F3 and F4 are respectively arranged on a secondary branch where the air-cooled screw water chilling unit 7 is located and a chilled water return side of a secondary branch where the hot water type lithium bromide water chilling unit 4 is located. An electric switch valve F5 is arranged on a branch of a chilled water supply pipeline 16 connected with the cold accumulation water tank 9, and an electric switch valve F6 is arranged on a chilled water return pipeline 17 where the cold release circulating pump 10 is positioned. An electric regulating valve F7 is arranged on the chilled water supply pipeline 16 upstream of the water separator 11. The switching pipe 21 is provided with an electric switching valve F8. An electric switch valve F6 and an electric switch valve F10 are arranged on a first branch of the chilled water return pipeline 17 where the cold release circulating pump 10 is arranged, and the cold release circulating pump 10 is arranged between the electric switch valve F6 and the electric switch valve F10. The hot water type lithium bromide water chilling unit 4, the air cooling screw water chilling unit 7, the automatic constant pressure water supplementing unit 14, and the valves and pumps are controlled to operate by a PLC control device.
The invention also provides an air-cooled screw water chilling unit 7 and a cold storage water tank 9, wherein the hot water type lithium bromide water chilling unit 4 is used as a main frozen water source, the air-cooled screw water chilling unit 7 and the cold storage water tank 9 are used as backup of the hot water type lithium bromide water chilling unit 4, redundant design of the frozen water source is provided for the system, and when the waste heat is insufficient and the hot water type lithium bromide water chilling unit 4 cannot refrigerate, the air-cooled screw water chilling unit 4 can start refrigerate at any time under the power drive to make up for the lack of refrigerating power of the hot water type lithium bromide water chilling unit 4. The cold storage water tank 9 has no refrigerating capacity, can store a part of cold energy when the hot water type lithium bromide water chilling unit 9 or the air cooling screw water chilling unit 7 refrigerates, and can output the cold energy preferentially when the waste heat of the power plant is insufficient to supply cold to a cold supply user side; in addition, when the waste heat of the power plant is insufficient, the cold storage water tank for peak-valley electricity price can be used for storing cold, and the cold storage water tank 9 is used for supplying cold during peak electricity price so as to reduce electricity cost.
The control method divides the cooling system into five cooling modes and performs corresponding control, wherein the first cooling mode is that the hot water type lithium bromide water chilling unit 4 is used for independently cooling, the second cooling mode is that the hot water type lithium bromide water chilling unit 4 is used for cooling and simultaneously cooling by using the cold storage water tank 9, the third cooling mode is that the air cooling screw water chilling unit 7 is used for independently cooling, the fourth cooling mode is that the air cooling screw water chilling unit 7 is used for cooling and simultaneously cooling by using the cold storage water tank 9, and the fifth cooling mode is that the cold storage water tank 9 is used for independently cooling.
As shown in fig. 2, in the first cooling mode, the waste heat boiler 1, the flue gas-hot water heat exchanger 2, the hot water circulating pump 3, the hot water type lithium bromide water chiller 4, the cooling water circulating pump 5, the cooling tower 6, the chilled water circulating pump 8, the automatic constant pressure water supplementing unit 14 and the full-automatic water filter 13 are operated, the air cooling screw water chiller 7 and the cold storage water tank 9 do not participate in operation, the cold storage water tank 9 stops outputting, and the electric switch valves F3, F6, F8 and F10 are disconnected to cut off the branch of the chilled water supply pipeline 16 and the branch of the chilled water return pipeline 17 connected with the cold storage water tank 9; the chilled water backwater flowing out from the self-cooling user terminal is subjected to water quality treatment by a full-automatic water filter 13, returns to the evaporator side of the hot water type lithium bromide water chilling unit 4 under the action of the chilled water circulating pump 8, is cooled, and is used as chilled water to be supplied to the cooling user terminal through a water separator 11.
As shown in fig. 3, in the second cooling mode, the waste heat boiler 1, the flue gas-hot water heat exchanger 2, the hot water circulating pump 3, the hot water type lithium bromide water chiller 4, the cooling water circulating pump 5, the cooling tower 6, the air cooling screw water chiller 7, the chilled water circulating pump 8, the cold storage water tank 9, the automatic constant pressure water supplementing unit 14 and the full automatic water filter 13 are operated, the air cooling screw water chiller 7 does not participate in operation, and the electric switch valves F3, F6 and F10 are disconnected to disconnect the branch of the chilled water return pipeline 17 connected with the cold storage water tank 9, so that the chilled water is not received from the water collector 12 to return; the return water of the chilled water from the cooling user starts to flow back through the water collector 12, after being subjected to water quality treatment through the full-automatic water filter 13, the return water is converged with a pipeline junction point between the electric switch valves F8 and F9 of the stored cold water released by the cold storage water tank 9, returns to the evaporator side of the hot water type lithium bromide water chilling unit 4 under the action of the chilled water circulating pump 8, and after the chilled water is cooled, part of the chilled water after being distributed with water quantity by the electric regulating valve F7 is used as chilled water to be supplied to the cooling user through the water distributor 11, and the other part of the chilled water is supplied to the cold storage water tank 9 for cold storage.
As shown in fig. 4, in the third cooling mode, the air-cooled screw water chiller 7, the chilled water circulation pump 8, the automatic constant-pressure water replenishing unit 14 and the full-automatic water filter 13 are operated, the hot water type lithium bromide water chiller 4 and the cold storage water tank 9 do not participate in operation, and the electric switch valves F4, F5, F6, F8 and F10 are disconnected to cut off the branch of the chilled water supply pipeline 16 and the branch of the chilled water return pipeline 17 connected with the cold storage water tank 9, so that the cold storage water tank 9 stops inputting and outputting; the chilled water backwater flowing out from the self-cooling user end is subjected to water quality treatment by a full-automatic water filter 13, returns to the evaporator side of the air-cooled screw water chilling unit 7 under the action of the chilled water circulating pump 8, is cooled, and is used as chilled water supply to the cooling user end through a water separator 11 for cooling.
As shown in fig. 5, in the fourth cooling mode, the air-cooled screw water chiller 7, the chilled water circulation pump 8, the cold storage water tank 9, the automatic constant-pressure water replenishing unit 14 and the full-automatic water filter 13 operate, the hot water type lithium bromide water chiller 4 does not participate in operation, and the electric switch valves F4, F6 and F10 are disconnected; the chilled water backwater flowing out from the self-cooling user end is subjected to water quality treatment through a full-automatic water filter 13 and then is converged with a pipeline junction point between the electric switch valves F8 and F9 of stored cold water released by the cold storage water tank 9, the chilled water returns to the evaporator side of the air-cooled screw water chilling unit 7 under the action of the chilled water circulating pump 8, a part of cooled chilled water is used as chilled water to be supplied to the cold supply user end through a water separator 11 after the electric regulating valve F7 distributes water, and the other part of cooled chilled water is supplied to the cold storage water tank 9 for cold storage.
As shown in fig. 6, in the fifth cooling mode, the cold storage water tank 9, the cold release circulation pump 10, the automatic constant pressure water supplementing unit 14 and the full-automatic water filter 13 operate, the hot water type lithium bromide water chilling unit 4 and the air cooling screw water chilling unit 7 do not participate in operation, and the electric switch valves F3, F4, F8 and F9 are disconnected, so that the chilled water backwater only flows back to the cold storage water tank 9; the cold water in the cold storage water tank 9 is used as chilled water to be supplied to a cold supply user end through a water separator 11, and chilled water backwater flowing out of the cold supply user end is returned to the cold storage water tank 9 under the action of a cold release circulating pump 10 after being subjected to water quality treatment through a full-automatic water filter 13.
The five cooling modes preferably adopt a second cooling mode; in the second cooling mode, when the tail flue gas of the waste heat boiler is insufficient, the tail flue gas of the waste heat boiler is preferentially switched to a fifth cooling mode; in the fifth cooling mode, when the water outlet temperature t=9 ℃ of the cold storage water tank 9 monitored by the temperature sensor 15 is switched to the fourth cooling mode; in the third cooling mode, when the cooling capacity of the system is greater than the terminal cooling requirement, the system is switched to the fourth cooling mode. The procedure is as in example 1.
Claims (10)
1. The utility model provides a coupling type waste heat utilization cold-storage cooling system, including the cooling system body, the cooling system body includes exhaust-heat boiler (1) and passes through flue gas-hot water heat exchanger (2) that flue gas pipeline links to each other with exhaust-heat boiler (1), characterized by, cooling system body still includes forced air cooling screw water chilling unit (7) and cold-storage water tank (9), cold-storage water tank (9) link to each other with the cold user end that supplies through frozen water supply pipeline (16) and frozen water return pipeline (17), flue gas-hot water heat exchanger (2) have hot water type lithium bromide cooling water unit (4) through pipe connection, hot water type lithium bromide cooling water unit (4) and forced air cooling screw water chilling unit (7) are parallelly connected on frozen water supply pipeline (16) and frozen water return pipeline (17).
2. The coupled type waste heat utilization cold accumulation and cooling system according to claim 1 is characterized in that a chilled water return pipeline (17) comprises a main pipeline and two parallel branches, a cold accumulation water tank (9) is connected to one of the branches, a cold release circulating pump (10) is arranged on the branch, a hot water type lithium bromide water chilling unit (4) and an air cooling screw water chilling unit (7) are connected to the other branch in parallel, a chilled water circulating pump (8) is arranged on the branch, and electric switch valves are respectively arranged on the branches where the cold release circulating pump (10) and the chilled water circulating pump (8) are located.
3. The coupled type waste heat utilization cold accumulation and supply system as claimed in claim 2 is characterized in that the number of the cold release circulating pump (10) and the chilled water circulating pump (8) is two, the two cold release circulating pumps (10) are connected in parallel, and the two chilled water circulating pumps (8) are connected in parallel.
4. A control method of a coupled waste heat utilization cold accumulation and supply system as claimed in any one of claims 1 to 3, characterized by comprising five cold supply modes, wherein the first cold supply mode is a hot water type lithium bromide cold water unit (4) for separately supplying cold; the second cooling mode is to cool the hot water type lithium bromide water chilling unit (4) and simultaneously cool the water by using the cool storage water tank (9); the third cooling mode is to independently cool the air-cooled screw water chiller (7); the fourth cooling mode is to cool the air-cooled screw water chilling unit (7) and simultaneously cool the air-cooled screw water chilling unit by using the cool storage water tank (9); the fifth cooling mode is to cool the cold storage water tank (9) independently.
5. The control method according to claim 4, wherein in the first cooling mode, the air-cooled screw water chiller (7) and the cold storage water tank (9) are out of operation, and the chilled water returned from the self-cooling user is subjected to water quality treatment by the fully-automatic water filter (13) and then returned to the hot water type lithium bromide water chiller (4) under the action of the chilled water circulating pump (8) to be cooled, and then supplied to the cooling user.
6. The control method according to claim 4, wherein in the second cooling mode, the air-cooled screw water chiller (7) is withdrawn from operation, the cold storage water tank (9) stops outputting, a branch of the chilled water return pipeline (17) connected with the cold storage water tank (9) is cut off, chilled water returned from the self-cooling user terminal is subjected to water quality treatment by the fully-automatic water filter (13), and then is returned to the hot water type lithium bromide water chiller (4) under the action of the chilled water circulating pump (8) through the chilled water return pipeline (17), a part of cooled water is supplied to the cold supply user terminal, and the other part of cooled water is supplied to the cold storage water tank (9) for cold storage.
7. The control method according to claim 4, wherein in the third cooling mode, the hot water type lithium bromide water chiller (4) and the cold storage water tank (9) are out of operation, and the chilled water backwater flowing from the self-cooling user side is subjected to water quality treatment by the full-automatic water filter (13) and then returned to the air cooling screw water chiller (7) for cooling under the action of the chilled water circulating pump (8) and then supplied to the cooling user side.
8. The control method according to claim 4, wherein in the fourth cooling mode, the hot water type lithium bromide water chilling unit (4) is withdrawn from operation, the cold storage water tank (9) stops outputting, a branch of a chilled water return pipeline (17) connected with the cold storage water tank (9) is cut off, chilled water returned from the self-cooling user terminal is subjected to water quality treatment by a fully automatic water filter (13) and then is returned to the air cooling screw water chilling unit (7) under the action of the chilled water circulating pump (8), and after cooling, part of the chilled water is supplied to the cold supply user terminal, and the other part of the chilled water is supplied to the cold storage water tank (9) for cold storage.
9. The control method according to claim 4, wherein in the fifth cooling mode, the hot water type lithium bromide water chiller (4) and the air-cooled screw water chiller (7) are taken out of operation; the cold water in the cold storage water tank (9) is supplied to a cold supply user end, and the chilled water backwater flowing out of the cold supply user end is returned to the cold storage water tank (9) under the action of a cold release circulating pump (10) after being subjected to water quality treatment by a full-automatic water filter (13).
10. The control method according to any one of claims 4 to 9, characterized in that the first or second cooling mode is preferentially adopted; in the first or second cooling mode, when the tail flue gas of the waste heat boiler (1) is insufficient, the tail flue gas is preferentially switched to a fifth cooling mode; in the fifth cooling mode, when the outlet water temperature T of the cold accumulation water tank (9) monitored by the temperature sensor (15) is more than 7 ℃, switching to a third or fourth cooling mode; when the system cooling capacity in the first or third cooling mode is greater than the terminal cooling requirement, the system is switched to the second or fourth cooling mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410452540.7A CN118066773B (en) | 2024-04-16 | 2024-04-16 | Coupled type waste heat utilization cold accumulation and supply system and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410452540.7A CN118066773B (en) | 2024-04-16 | 2024-04-16 | Coupled type waste heat utilization cold accumulation and supply system and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN118066773A true CN118066773A (en) | 2024-05-24 |
| CN118066773B CN118066773B (en) | 2024-08-06 |
Family
ID=91097451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410452540.7A Active CN118066773B (en) | 2024-04-16 | 2024-04-16 | Coupled type waste heat utilization cold accumulation and supply system and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118066773B (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020014073A (en) * | 2000-08-16 | 2002-02-25 | 류진장 | Air conditioning apparatus using storage system of cold and hot water |
| KR100734560B1 (en) * | 2006-10-12 | 2007-07-03 | 주식회사 윤익물산 | Solar energy parallel connection system for boiler |
| JP2010084998A (en) * | 2008-09-30 | 2010-04-15 | Noritz Corp | Water heater |
| JP2010107074A (en) * | 2008-10-29 | 2010-05-13 | Sekisui Chem Co Ltd | Energy supply system, self-supporting housing and self-supporting region |
| WO2014040371A1 (en) * | 2012-09-13 | 2014-03-20 | Li Shanchong | Air heat energy development and application method and heat exchange apparatus, as well as refrigeration apparatus waste heat recovery method |
| CN204665744U (en) * | 2015-05-06 | 2015-09-23 | 上海阿尔西空调系统服务有限公司 | Electricity refrigeration associating thermal storage electric boiler device with recuperation of heat |
| CN108180690A (en) * | 2017-12-27 | 2018-06-19 | 中国电力工程顾问集团西南电力设计院有限公司 | The combination configuration structure and operating method of district cooling station cold source equipment |
| CN108800272A (en) * | 2018-06-06 | 2018-11-13 | 天津大学 | A kind of operation method of provide multiple forms of energy to complement each other cooling and thermal power plant unit |
| CN110595102A (en) * | 2019-09-09 | 2019-12-20 | 中国电力工程顾问集团西南电力设计院有限公司 | Multipurpose regional cooling system and control method |
| WO2020037843A1 (en) * | 2018-08-23 | 2020-02-27 | 中国建筑西北设计研究院有限公司 | Air conditioner cooling water system for multi-stage cooling and cascade utilization of terminal energy |
| CN112129028A (en) * | 2020-10-19 | 2020-12-25 | 华能国际电力股份有限公司 | LNG power plant multi-energy complementary cooling system with energy storage device |
| CN213983720U (en) * | 2020-08-06 | 2021-08-17 | 苏州吴都能源发展有限公司 | Novel waste heat utilization system |
| CN214581900U (en) * | 2021-03-10 | 2021-11-02 | 中国能源建设集团浙江省电力设计院有限公司 | Air conditioner cold and heat source system for gas turbine power plant |
| KR20220049938A (en) * | 2020-10-15 | 2022-04-22 | 주식회사 지앤지테크놀러지 | Geothermal System and Its Construction Method for Simultaneous Operation of Hot and Cold Water Storage Tank |
-
2024
- 2024-04-16 CN CN202410452540.7A patent/CN118066773B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020014073A (en) * | 2000-08-16 | 2002-02-25 | 류진장 | Air conditioning apparatus using storage system of cold and hot water |
| KR100734560B1 (en) * | 2006-10-12 | 2007-07-03 | 주식회사 윤익물산 | Solar energy parallel connection system for boiler |
| JP2010084998A (en) * | 2008-09-30 | 2010-04-15 | Noritz Corp | Water heater |
| JP2010107074A (en) * | 2008-10-29 | 2010-05-13 | Sekisui Chem Co Ltd | Energy supply system, self-supporting housing and self-supporting region |
| WO2014040371A1 (en) * | 2012-09-13 | 2014-03-20 | Li Shanchong | Air heat energy development and application method and heat exchange apparatus, as well as refrigeration apparatus waste heat recovery method |
| CN204665744U (en) * | 2015-05-06 | 2015-09-23 | 上海阿尔西空调系统服务有限公司 | Electricity refrigeration associating thermal storage electric boiler device with recuperation of heat |
| CN108180690A (en) * | 2017-12-27 | 2018-06-19 | 中国电力工程顾问集团西南电力设计院有限公司 | The combination configuration structure and operating method of district cooling station cold source equipment |
| CN108800272A (en) * | 2018-06-06 | 2018-11-13 | 天津大学 | A kind of operation method of provide multiple forms of energy to complement each other cooling and thermal power plant unit |
| WO2020037843A1 (en) * | 2018-08-23 | 2020-02-27 | 中国建筑西北设计研究院有限公司 | Air conditioner cooling water system for multi-stage cooling and cascade utilization of terminal energy |
| CN110595102A (en) * | 2019-09-09 | 2019-12-20 | 中国电力工程顾问集团西南电力设计院有限公司 | Multipurpose regional cooling system and control method |
| CN213983720U (en) * | 2020-08-06 | 2021-08-17 | 苏州吴都能源发展有限公司 | Novel waste heat utilization system |
| KR20220049938A (en) * | 2020-10-15 | 2022-04-22 | 주식회사 지앤지테크놀러지 | Geothermal System and Its Construction Method for Simultaneous Operation of Hot and Cold Water Storage Tank |
| CN112129028A (en) * | 2020-10-19 | 2020-12-25 | 华能国际电力股份有限公司 | LNG power plant multi-energy complementary cooling system with energy storage device |
| CN214581900U (en) * | 2021-03-10 | 2021-11-02 | 中国能源建设集团浙江省电力设计院有限公司 | Air conditioner cold and heat source system for gas turbine power plant |
Also Published As
| Publication number | Publication date |
|---|---|
| CN118066773B (en) | 2024-08-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210197600U (en) | Secondary pump variable flow chilled water system with energy storage device | |
| CN104613577A (en) | Internal-melt ice storage air-conditioning system and operating method thereof | |
| CN103335467B (en) | LNG energy comprehensive utilization system | |
| CN203336754U (en) | Distributed energy resource and ice-storage air conditioner networking operation system | |
| CN110671765A (en) | Phase-change cold accumulation emergency cold supply system | |
| CN102345910B (en) | Water cool storage air conditioning system with indirect cool storage | |
| CN110332746B (en) | Cold chain logistics park integrated system based on LNG energy cascade utilization | |
| CN201991610U (en) | Combined cooling, heating and power modular integrated system for small-sized internal combustion motor | |
| CN211781655U (en) | Regional cold supply system capable of dynamically accumulating cold | |
| CN218677322U (en) | Multifunctional energy-saving energy storage system of liquid-cooled battery | |
| CN118066773B (en) | Coupled type waste heat utilization cold accumulation and supply system and control method thereof | |
| CN203396176U (en) | LNG (liquefied natural gas) energy comprehensive utilization system | |
| CN216873715U (en) | Coupling type steam waste heat refrigerating data center cooling system | |
| CN114278436B (en) | System and method for utilizing air inlet temperature-regulating waste heat of two-stage dual-mode gas turbine | |
| CN215446718U (en) | Data center waste heat recovery heating system | |
| CN115523559A (en) | Ice-cold thermoelectric energy supply system, winter heating method and summer refrigerating method | |
| CN115839524A (en) | Air conditioning system with dynamic ice storage function and control method thereof | |
| CN115968171A (en) | Cold and hot recovery system based on liquid cooling data center | |
| CN107560129B (en) | Natural gas heating and air conditioner refrigeration coupling system and method | |
| CN113301774A (en) | Clean high-energy-efficiency high-heat-flow-density data center hybrid multi-energy system | |
| CN210399090U (en) | Cold and hot separated multi-configuration double-heat-source heating system with heat pump | |
| CN215809003U (en) | Side-storage and side-supply system equipment in air conditioner ice cold storage | |
| CN211551907U (en) | District cooling system | |
| CN218218109U (en) | Chilled water storage system applied to data center | |
| CN115507608B (en) | Energy supply system and method for making ice in spring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |