CN219220535U - Four-combined supply system for cold, hot and electric power and sea water desalination - Google Patents
Four-combined supply system for cold, hot and electric power and sea water desalination Download PDFInfo
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- CN219220535U CN219220535U CN202222961931.0U CN202222961931U CN219220535U CN 219220535 U CN219220535 U CN 219220535U CN 202222961931 U CN202222961931 U CN 202222961931U CN 219220535 U CN219220535 U CN 219220535U
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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
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- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
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Abstract
The utility model relates to the technical field of multi-combined supply, in particular to a four-combined supply system for cold, heat, electricity and sea water desalination, which comprises a power generation system, a refrigeration system, a heating system and a desalination system; the power generation system is respectively communicated with the refrigerating system and the heating system, and is electrically connected with the desalination system; the power generation system is communicated with geothermal water, generates power for the desalination system after steam is formed by separation, forms hot water for the refrigeration system, and processes organic working medium gas for the heating system; the refrigerating system processes the hot water and the mixed working medium solution to form liquid for heat absorption and refrigeration; the heating system is used for mixing the organic working medium gas with cooling water and realizing heat exchange; and the desalination system is used for forming fresh water by reverse osmosis and chemical treatment of the seawater. The utility model solves the problem that the existing cold, hot and electric and sea water desalination system adopts wave energy and natural gas as energy sources, but is not suitable for all use areas, so that the application environment of the system is limited.
Description
Technical Field
The utility model relates to the technical field of multi-combined supply, in particular to a four-combined supply system for cold, heat, electricity and sea water desalination.
Background
The multi-combined supply is a multi-energy output system, and mainly emphasizes that under the guidance of the comprehensive cascade utilization principle of energy, reasonable matching and combination of different thermodynamic systems are realized. The regional combined cooling, heating and power system is a new generation urban energy system combining conventional energy and renewable energy. The method is characterized in that the heat source is high-efficiency gas-steam combined cycle cogeneration, and meanwhile, the waste heat of circulating water and the waste heat of flue gas are fully recovered, and the heat is conveyed in a conveying link of a heat supply network with large temperature difference; at the heating power station, the return water temperature of the heating network is reduced, other waste heat resources such as sewage energy, geothermal energy and the like can be extracted without cost, and the efficient utilization of low-carbon energy natural gas is realized by matching with the peak shaving of tail gas.
The combined cooling, heating and power supply means that natural gas is used as main fuel to drive gas power generation equipment such as a gas turbine, a micro-combustion engine or an internal combustion engine generator to operate, the generated power supplies the power demand of users, and the waste heat discharged after the system generates power supplies heat and cold to the users through waste heat recycling equipment (a waste heat boiler or a waste heat direct-combustion engine and the like).
Sea water desalination is to produce fresh water by sea water desalination. The technology is an open source increment technology for realizing water resource utilization, can increase the total fresh water, is not influenced by space time and climate, and can ensure stable water supply such as coastal resident drinking water, industrial boiler water supply and the like.
The existing cold-hot electricity and sea water desalination systems, such as the energy source of patent 202111401507.4, come from wave energy, but are not suitable for land cold-hot electricity and sea water desalination applications; the energy source of patent 201910069896.1 is derived from natural gas, which is not suitable for the area where natural gas is not supplied, so a four-combined supply system of cold, heat, electricity and sea water desalination is generated.
Disclosure of Invention
The utility model provides a four-combined supply system for cold, hot and sea water desalination, which mainly solves the problem that the application environment of the system is limited because wave energy and natural gas are adopted as energy sources in the existing cold, hot and sea water desalination system, but the system is not suitable for all use areas.
The utility model provides a four-combined supply system for cold, heat, electricity and sea water desalination, which comprises a power generation system, a refrigeration system, a heating system and a desalination system; the power generation system is respectively communicated with the refrigerating system and the heating system, and is electrically connected with the desalination system;
the power generation system is communicated with geothermal water, generates power for the desalination system after steam is formed by separation, forms hot water for the refrigeration system, and processes organic working medium gas for the heating system;
the refrigerating system processes the hot water and the mixed working medium solution to form liquid for heat absorption and refrigeration;
the heating system is used for mixing the organic working medium gas with cooling water and realizing heat exchange;
the desalination system is used for forming fresh water by reverse osmosis and chemical treatment of seawater.
Preferably, the power generation system comprises a separator, a first turbine and a first heat exchanger; the first turbine and the first heat exchanger are respectively connected with the output end of the separator, and the input end of the separator is communicated with geothermal water; the first turbine is electrically connected with the desalination system.
Preferably, the heating system comprises a second turbine and a first condenser which are sequentially connected; the other end of the second steam turbine is connected to the output end of the first heat exchanger, and the other end of the first condenser is connected to the input end of the first heat exchanger; the first heat exchanger is internally stored with an organic working medium; the first condenser is also connected with cooling water and forms hot water through heat exchange.
Preferably, the system also comprises a valve and a working medium pump; the output end of the first heat exchanger is also connected with a first mixer; the valve is arranged between the input end of the separator, the first heat exchanger and the first mixer; the working medium pump is arranged between the first condenser and the first heat exchanger.
Preferably, the refrigeration system comprises a generator, a second condenser and an evaporator; the input end of the generator is connected with the output end of the first mixer, and mixed working medium solution is arranged in the generator; the second condenser is connected with the generator and is connected with cooling water in parallel; the evaporator is connected with the output end of the second condenser to enable the condensate to absorb heat and heat.
Preferably, the system further comprises a working medium pump, a second heat exchanger and an absorber; the absorber is connected with the output end of the evaporator, and the mixed working medium solution is arranged in the absorber; a working medium pump is arranged between the second heat exchanger and the absorber, and the working medium pump enables the mixed working medium solution to enter the generator through the second heat exchanger; the heat exchanger is also connected with the input end of the absorber through a valve, and the heated mixed working medium solution is conveyed to the absorber.
Preferably, the desalination system comprises a filter, a reactor, a second mixer, and a reverse osmosis; the input end of the filter is connected with seawater, and the output end of the filter is communicated with the second mixer and the reactor; the reactor is sequentially connected with a reverse osmosis device, and fresh water output by the reverse osmosis device is conveyed to the second mixer; the output end of the second mixer outputs fresh water.
Preferably, the device further comprises a reverse osmosis pump arranged between the reaction gas and a reverse osmosis device; valves are arranged between the filter and the second mixer, and at the brine output end of the reverse osmosis device and the output end of the second mixer.
Preferably, the input end of the separator is communicated with the production well.
Preferably, the hot water output end of the generator is communicated with the recharging well.
From the above, the technical scheme provided by the utility model can obtain the following beneficial effects:
firstly, the power generation system in the technical scheme provided by the utility model can convert steam into electric energy for self use, does not need to consume external electric energy, can improve the energy utilization rate, and further reduces the energy loss;
secondly, the technical proposal provided by the utility model can realize the supply of cold, hot electricity, fresh water and the like, and meet the daily demands of users;
thirdly, in the technical scheme provided by the utility model, the geothermal energy is fully utilized, so that the carbon emission is reduced, and the environmental optimization is facilitated.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
Fig. 1 is a system block diagram of a four-combined supply system in an embodiment of the utility model.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are merely some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without any inventive effort, are intended to be within the scope of the utility model.
Wave energy and natural gas are adopted as energy sources in the existing cold, hot and electric and sea water desalination systems, but the existing cold, hot and electric and sea water desalination systems are not suitable for all use areas, so that the problem of limited application environment of the systems is caused.
As shown in fig. 1, in order to solve the above-mentioned problems, the present embodiment provides a four-combined supply system for cooling, heating and desalting sea water, which mainly includes a power generation system, a refrigeration system, a heating system and a desalting system; the power generation system is respectively communicated with the refrigerating system and the heating system, and is electrically connected with the desalination system.
The power generation system is communicated with geothermal water, generates power for the desalination system after steam is formed by separation, forms hot water for the refrigeration system, and processes organic working medium gas for the heating system; the refrigerating system processes the hot water and the mixed working medium solution to form liquid for heat absorption and refrigeration; the heating system is used for mixing the organic working medium gas with cooling water and realizing heat exchange; and the desalination system is used for forming fresh water by reverse osmosis and chemical treatment of the seawater.
Preferably, the power generation system in this embodiment is a flash-dual-station power generation system, which mainly includes two power generation subsystems of flash and dual-station.
More specifically, the power generation system includes a separator 10, a first turbine 11, and a first heat exchanger 31; the first turbine 11 and the first heat exchanger 31 are respectively connected with the output end of the separator 10, and the input end of the separator 10 is communicated with geothermal water; the first turbine 11 is electrically connected to the desalination system.
Preferably, the input end of the separator 10 is connected to a production well in this embodiment, and geothermal water from the production well is extracted for separation.
In this embodiment, geothermal water enters the separator 10 from the production well through the valve, and is separated into a steam-water mixture in the separator 10, and the steam generated by separation enters the first turbine 11 to push the first turbine 11 to do work to generate electricity, and the generated electricity is used for self-power consumption of sea water desalination in the desalination system.
More specifically, the heating system includes a second turbine 12 and a first condenser 41 connected in series; the other end of the second steam turbine 12 is connected to the output end of the first heat exchanger 31, and the other end of the first condenser 41 is connected to the input end of the first heat exchanger 31; the first heat exchanger 31 stores organic working medium; the first condenser 41 is also connected with cooling water, and forms hot water through heat exchange.
Preferably, the output end of the first heat exchanger 31 in this embodiment is also connected to a first mixer 51; the valve is arranged between the input end of the separator 10, the first heat exchanger 31 and the first mixer 51; the working fluid pump is disposed between the first condenser 41 and the first heat exchanger 31.
In this embodiment, after the hot water generated by separation enters the first heat exchanger 31 to heat the organic working medium, the hot water enters the first mixer 51 through a valve, and the exhaust gas of the first turbine 11 directly enters the first mixer 51. The organic working medium (such as toluene) is heated into saturated steam in the first heat exchanger 31 and enters the second steam turbine 12, the second steam turbine 12 is driven to do work to generate electric power, the generated electric power is used for grid connection, the organic working medium gas discharged from the second steam turbine 12 enters the first condenser 41, and after being condensed, the organic working medium gas is pumped into the first heat exchanger 31 by a working medium pump to complete a closed cycle.
In this embodiment, the heating system mainly comprises the first condenser 41 and the hot water for cooling, and the hot water for cooling in the first condenser 41 is heated to be hot water for the user to use, that is, the hot water for heating is provided for the user due to the higher temperature and pressure of the working medium gas discharged from the second steam turbine 12.
More specifically, the refrigeration system includes a generator 60, a second condenser 42, and an evaporator 70; the input end of the generator 60 is connected with the output end of the first mixer 51, and the generator 60 is internally provided with mixed working medium solution; the second condenser 42 is connected with the generator 60 and is connected with cooling water; the evaporator 70 is connected to the output of the second condenser 42 to absorb heat from the condensate.
Preferably, further comprising a working fluid pump, a second heat exchanger 32 and an absorber 80; the absorber 80 is connected with the output end of the evaporator 70, and the mixed working medium solution is arranged in the absorber 80; a working medium pump is arranged between the second heat exchanger 32 and the absorber 80, and the working medium pump enables the mixed working medium solution to enter the generator 60 through the second heat exchanger 32; the second heat exchanger 32 is also connected to the input of the absorber 80 via a valve to deliver the heated mixed refrigerant solution to the absorber 80.
Preferably, but not limited to, the generator 60 is also connected to a recharging well, and the hot water in the generator 60 is discharged into the recharging well.
Preferably, but not limited to, the mixed working fluid solution in this embodiment is lithium bromide solution.
In this embodiment, the geothermal water of the first mixer 51 enters the generator 60 to heat the mixed working medium solution, the generated vapor is condensed into liquid in the second condenser 42, then enters the evaporator 70 to absorb heat and cool for users, and then turns into gas, which enters the absorber 80 to be absorbed by the mixed working medium solution, the mixed working medium solution in the absorber 80 is pumped into the generator 60 by the working medium pump through the second heat exchanger 32, and the solution after the mixed working medium solution is heated by the generator 60 passes through the second heat exchanger 32 and then enters the absorber 80 again to complete a closed cycle.
More specifically, the desalination system includes a filter 90, a reactor 100, a second mixer 52, and a reverse osmosis 110; the input end of the filter 90 is connected with seawater, and the output end is communicated with the second mixer 52 and the reactor 100; the reactor 100 is sequentially connected with the reverse osmosis device 110, and fresh water output from the reverse osmosis device 110 is delivered to the second mixer 52; the output of the second mixer 52 outputs fresh water.
Preferably, further comprising a reverse osmosis pump disposed between the reactor 100 and the reverse osmosis 110; valves are provided between the filter 90 and the second mixer 52, at the brine output of the reverse osmosis 110, and at the output of the second mixer 52.
Preferably, but not limited to, a collecting tank may be connected to the brine output end of the reverse osmosis device 110 in this embodiment, so as to collect brine for use; similarly, a collection tank may be connected to the output of the second mixer 52 for collecting and storing fresh water.
In this embodiment, seawater enters the filter 90 through a reverse osmosis pump, one part of the filtered seawater directly enters the second mixer 52, the other part of the filtered seawater is subjected to chemical pretreatment through the reactor 100, then enters the reverse osmosis 110 through the reverse osmosis pump, and fresh water enters the second mixer 52 and is directly produced by the second mixer 52.
In summary, the present embodiment provides a four-combined supply system for cold, hot and seawater desalination, which mainly utilizes geothermal water to realize the supply of cold, hot and fresh water, thereby realizing the efficient utilization of clean energy, realizing self-power supply, reducing energy loss and reducing carbon emission.
The above-described embodiments do not limit the scope of the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the above embodiments should be included in the scope of the present utility model.
Claims (10)
1. A four-combined supply system for cold, heat, electricity and sea water desalination is characterized in that: the system comprises a power generation system, a refrigeration system, a heating system and a desalination system; the power generation system is respectively communicated with the refrigerating system and the heating system, and is electrically connected with the desalination system;
the power generation system is communicated with geothermal water, generates power for the desalination system after steam is formed by separation, forms hot water for the refrigeration system, and processes organic working medium gas for the heating system;
the refrigerating system processes the hot water and the mixed working medium solution to form liquid for heat absorption and refrigeration;
the heating system is used for mixing the organic working medium gas with cooling water and realizing heat exchange;
the desalination system is used for forming fresh water by reverse osmosis and chemical treatment of seawater.
2. The four-combined cooling, heating and power and sea water desalination system according to claim 1, wherein: the power generation system comprises a separator, a first turbine and a first heat exchanger; the first turbine and the first heat exchanger are respectively connected with the output end of the separator, and the input end of the separator is communicated with geothermal water; the first turbine is electrically connected with the desalination system.
3. The four-combined cooling, heating and power and sea water desalination system as claimed in claim 2, wherein: the heating system comprises a second steam turbine and a first condenser which are sequentially connected; the other end of the second steam turbine is connected to the output end of the first heat exchanger, and the other end of the first condenser is connected to the input end of the first heat exchanger; the first heat exchanger is internally stored with an organic working medium; the first condenser is also connected with cooling water and forms hot water through heat exchange.
4. A four-combined cooling, heating and power system for sea water desalination according to claim 3, wherein: the device also comprises a valve and a working medium pump; the output end of the first heat exchanger is also connected with a first mixer; the valve is arranged between the input end of the separator, the first heat exchanger and the first mixer; the working medium pump is arranged between the first condenser and the first heat exchanger.
5. The four-combined cooling, heating and power and sea water desalination system according to claim 1, wherein: the refrigeration system comprises a generator, a second condenser and an evaporator; the input end of the generator is connected with the output end of the first mixer, and mixed working medium solution is arranged in the generator; the second condenser is connected with the generator and is connected with cooling water in parallel; the evaporator is connected with the output end of the second condenser to enable the condensate to absorb heat and refrigerate.
6. The four-combined cooling, heating and power and sea water desalination system according to claim 5, wherein: the system also comprises a working medium pump, a second heat exchanger and an absorber; the absorber is connected with the output end of the evaporator, and the mixed working medium solution is arranged in the absorber; the working medium pump is arranged between the second heat exchanger and the absorber, and the working medium pump enables the mixed working medium solution to enter the generator through the second heat exchanger; the second heat exchanger is also connected with the input end of the absorber through a valve, and the heated mixed working medium solution is conveyed to the absorber.
7. The four-combined cooling, heating and power and sea water desalination system according to claim 1, wherein: the desalination system comprises a filter, a reactor, a second mixer and a reverse osmosis device; the input end of the filter is connected with seawater, and the output end of the filter is communicated with the second mixer and the reactor; the reactor is sequentially connected with a reverse osmosis device, and fresh water output by the reverse osmosis device is conveyed to the second mixer; the output end of the second mixer outputs fresh water.
8. The four-combined cooling, heating and power and sea water desalination system according to claim 7, wherein: the reverse osmosis pump is arranged between the reactor and the reverse osmosis device; valves are arranged between the filter and the second mixer, and at the brine output end of the reverse osmosis device and the output end of the second mixer.
9. The four-combined cooling, heating and power and sea water desalination system as claimed in claim 2, wherein: the input end of the separator is communicated with the production well.
10. The four-combined cooling, heating and power and sea water desalination system according to claim 5, wherein: and the hot water output end of the generator is communicated with the recharging well.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222961931.0U CN219220535U (en) | 2022-11-07 | 2022-11-07 | Four-combined supply system for cold, hot and electric power and sea water desalination |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222961931.0U CN219220535U (en) | 2022-11-07 | 2022-11-07 | Four-combined supply system for cold, hot and electric power and sea water desalination |
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| CN219220535U true CN219220535U (en) | 2023-06-20 |
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| CN202222961931.0U Active CN219220535U (en) | 2022-11-07 | 2022-11-07 | Four-combined supply system for cold, hot and electric power and sea water desalination |
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- 2022-11-07 CN CN202222961931.0U patent/CN219220535U/en active Active
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