CN210033735U - High-temperature and low-temperature hot water self-circulation system for simulating geothermal power generation - Google Patents
High-temperature and low-temperature hot water self-circulation system for simulating geothermal power generation Download PDFInfo
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- CN210033735U CN210033735U CN201920807378.0U CN201920807378U CN210033735U CN 210033735 U CN210033735 U CN 210033735U CN 201920807378 U CN201920807378 U CN 201920807378U CN 210033735 U CN210033735 U CN 210033735U
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Abstract
The utility model provides a high temperature and low temperature hot water from circulation system of simulation geothermal power generation, including the low temperature hot water circulation subassembly of cyclic connection in proper order, the working medium circulation subassembly that adjusts the temperature, high temperature hot water circulation subassembly and electricity generation subassembly, and with the low temperature hot water temperature compensation subassembly that low temperature hot water circulation subassembly links to each other. The high-temperature hot water circulation assembly is used for a heat source of the power generation assembly; the low-temperature hot water circulation assembly is used as a cold source of the power generation assembly; working medium circulation subassembly that adjusts temperature is used for the temperature balance between regulation and control heat source and the cold source, and low temperature hot water temperature compensation subassembly is used for the temperature compensation of cold source, the utility model discloses hot water in high temperature hot water circulation subassembly and the low temperature hot water circulation subassembly can also carry out thermal exchange through working medium circulation temperature adjustment subassembly when carrying out self internal circulation, combines low temperature hot water temperature compensation subassembly, realizes the accurate control of temperature, and hot water heat energy is by make full use of, compares very big saving the electric energy with the geothermal power generation system that traditional tail water directly discharged, reduce cost.
Description
Technical Field
The utility model relates to a geothermal power generation technical field especially relates to a high temperature and low temperature hot water self-circulation system of simulation geothermal power generation.
Background
The power generation efficiency of the existing geothermal power generation system is generally less than 10%, and the existing geothermal power generation system has historical prejudice that the existing geothermal power generation system is feasible technically and infeasible economically. In order to improve the power generation efficiency of geothermal power generation, a large amount of experimental research needs to be carried out by technicians, so that the continuous improvement and perfection of the geothermal power generation technology are realized, and in order to test the power generation performance of different power generation systems, a matched high-temperature and low-temperature hot water self-circulation system simulating geothermal power generation needs to be built.
The current geothermal power generation system usually adopts a mode of electrically heating room temperature water to provide a heat source for carrying out simulated geothermal power generation test, the heat energy of the heated hot water can not be effectively utilized, the utilization rate of the heat energy is low, especially for a simulated megawatt geothermal power generation set, the power consumption of the heat source system adopting electric heating can reach a ten megawatt level, the energy consumption is extremely high, the economic cost of the geothermal power generation system is extremely high, and the development of the geothermal power generation technology is greatly restricted.
Therefore, the prior art is still to be improved.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned prior art not enough, the utility model aims at providing a high temperature and low temperature hot water self-circulation system of simulation geothermal power generation aims at solving current geothermal power generation system heat energy and can not make full use of, the big technical problem of power consumption.
The technical scheme of the utility model as follows:
the utility model provides a high temperature and low temperature hot water from circulation system of simulation geothermal power generation, wherein, includes the low temperature hot water circulation subassembly of cyclic connection in proper order, working medium circulation temperature adjustment subassembly, high temperature hot water circulation subassembly and electricity generation subassembly, and with the low temperature hot water temperature compensation subassembly that low temperature hot water circulation subassembly links to each other.
The high temperature and low temperature hot water of simulation geothermal power generation from the circulation system, wherein, high temperature hot water circulation subassembly is including the high temperature water tank of cyclic connection in proper order, high temperature hot water circulating pump and evaporimeter, low temperature hot water circulation subassembly is including the low temperature water tank of cyclic connection in proper order, low temperature hot water circulating pump and condenser.
The high-temperature and low-temperature hot water self-circulation system for simulating geothermal power generation is characterized in that the working medium circulation temperature adjusting assembly comprises a condensation pipe, a first compressor and an evaporation pipe which are sequentially and circularly connected, the condensation pipe is arranged in the high-temperature water tank, and the evaporation pipe is arranged in the low-temperature water tank.
The high-temperature and low-temperature hot water self-circulation system for simulating geothermal power generation is characterized in that a first throttling valve is connected between the evaporation pipe and the condensation pipe.
The high-temperature and low-temperature hot water self-circulation system for simulating geothermal power generation is characterized in that the power generation assembly comprises a power generator and a working medium circulating pump, and the power generator, the condenser, the working medium circulating pump and the evaporator are sequentially and circularly connected.
The high-temperature and low-temperature hot water self-circulation system for simulating geothermal power generation is characterized in that the generator is a magnetic suspension turbine generator.
The high-temperature and low-temperature hot water self-circulation system for simulating geothermal power generation is characterized in that the low-temperature hot water temperature compensation assembly comprises a first heat exchanger, a second compressor and a second heat exchanger which are sequentially connected in a circulation mode.
The high-temperature and low-temperature hot water self-circulation system for simulating geothermal power generation is characterized in that the first heat exchanger is a tubular heat exchanger, and the second heat exchanger is an air-cooled heat exchanger.
The high-temperature and low-temperature hot water self-circulation system for simulating geothermal power generation is characterized in that the first heat exchanger is arranged in the low-temperature water tank.
The high-temperature and low-temperature hot water self-circulation system for simulating geothermal power generation is characterized in that a second throttle valve is connected between the first heat exchanger and the second heat exchanger.
Has the advantages that: the utility model provides a pair of high temperature and low temperature hot water from circulation system of simulation geothermal power generation, including the low temperature hot water circulation subassembly of cyclic connection in proper order, the working medium circulation subassembly that adjusts the temperature, high temperature hot water circulation subassembly and electricity generation subassembly, and with the low temperature hot water temperature compensation subassembly that low temperature hot water circulation subassembly links to each other. The high-temperature hot water circulation assembly is used for a heat source of the power generation assembly; the low-temperature hot water circulation assembly is used for a cold source of the power generation assembly; working medium circulation temperature adjustment subassembly is used for regulating and controlling temperature balance between heat source and the cold source, low temperature hot water temperature compensation subassembly is used for the temperature compensation of cold source, the utility model discloses the high temperature of simulation geothermal power generation and the hot water in high temperature hot water circulation subassembly in the low temperature hot water circulation subassembly and the low temperature hot water circulation subassembly of low temperature hot water self-circulation can also carry out thermal exchange through working medium circulation temperature adjustment subassembly when carrying out self internal circulation, in addition, combine low temperature hot water temperature compensation subassembly, realize the accurate control of device temperature, also realized the make full use of the inside hot water heat energy of device, compare the very big electric energy that saves with the geothermal power generation test device that traditional tail water directly discharged, reduce the cost of experiment.
Drawings
Fig. 1 is a schematic structural view of a high-temperature and low-temperature hot water self-circulation system for simulating geothermal power generation according to the present invention.
Detailed Description
The utility model provides a high temperature and low temperature hot water from circulation system of simulation geothermal power generation, for making the utility model discloses a purpose, technical scheme and effect are clearer, more clear and definite, and is following right the utility model discloses further detailed description. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, the utility model provides a pair of high temperature and low temperature hot water from circulation system of simulation geothermal power generation, including low temperature hot water circulation subassembly 10, working medium circulation temperature regulating assembly 20, high temperature hot water circulation subassembly 30 and the electricity generation subassembly 40 of cyclic connection in proper order, and with the low temperature hot water temperature compensation subassembly 160 that low temperature hot water circulation subassembly links to each other. The high-temperature hot water circulation assembly is used for a heat source of the power generation assembly; the low-temperature hot water circulation assembly is used for a cold source of the power generation assembly; the working medium circulation temperature adjusting assembly and the low-temperature hot water temperature compensation assembly operate cooperatively and are used for accurately adjusting and controlling the temperatures of the heat source and the cold source.
Geothermal power generation is a novel power generation technology using underground hot water and steam as power sources, the basic principle of the geothermal power generation is similar to that of thermal power generation, and the geothermal power generation is based on the energy conversion principle, namely, geothermal energy is converted into mechanical energy firstly, and then the mechanical energy is converted into electric energy, and the geothermal power generation is actually an energy conversion process of converting the underground thermal energy into the electric energy and then converting the mechanical energy into the electric energy or is called geothermal power generation. The geothermal power generation test device in the prior art usually adopts a mode of electrically heating room temperature water to provide a heat source for carrying out simulated geothermal power generation test, and the heated hot water is not effectively recycled, so that the heat utilization rate is low, the test cost of a large power generation system is high, and the development of a geothermal power generation technology, particularly a medium-low temperature geothermal power generation technology, is greatly restricted.
In order to solve the technical problem, the utility model discloses a high temperature and low temperature hot water self-circulation system of simulation geothermal power generation of technical scheme, adopted the dual cycle power generation technique, including high temperature hot water circulation subassembly and low temperature hot water circulation subassembly, carry out heat exchange through the heat pump circulation of the low boiling point organic matter working medium of the inside storage of pipeline between high temperature hot water circulation subassembly and the low temperature hot water circulation subassembly, carry heat to the high temperature water tank from the low temperature water tank, organic working medium obtains the heat and produces organic working medium steam from high temperature hot water in the high temperature hot water circulation subassembly, and then promote the generator and realize the electricity generation, the utility model relates to a high temperature and low temperature hot water self-circulation system of simulation geothermal power generation, high temperature hot water is heated through working medium circulation temperature adjustment subassembly circulation, realized simulation geothermal power generation high temperature and low temperature hot and cold water self-circulation, the abundant, the experimental cost of a high-temperature and low-temperature hot water self-circulation system simulating geothermal power generation is greatly reduced, and the development of the geothermal power generation technology can be greatly promoted.
It is further explained that the utility model discloses a high temperature and low temperature hot water from circulation system of simulation geothermal power generation not only can simulate geothermal water and be used for testing magnetic suspension turbo generator's correlation performance, also can be used for other occasions that need cold source and heat source simultaneously, like the heat transfer performance test of traditional turbo generator test, thermoelectric material electricity generation test, heat exchanger etc..
Referring to fig. 1, in a preferred embodiment, the high temperature hot water circulation assembly includes a high temperature water tank 40, a high temperature hot water circulation pump 50 and an evaporator 60, which are sequentially and circularly connected, and the low temperature hot water circulation assembly includes a low temperature water tank 70, a low temperature hot water circulation pump 80 and a condenser 90, which are sequentially and circularly connected. The utility model provides a high temperature hot water circulating pump and low temperature hot water circulating pump are the hot water circulating pump that can buy on the market, and high temperature hot water circulating pump and low temperature hot water circulating pump are the inside hydrothermal temperature difference of actual operation in-process only, and wherein the temperature range that high temperature was referred is the temperature (90-100 ℃) that is greater than working medium evaporation, and the temperature range that low temperature was referred is the temperature (40-50 ℃) that is less than working medium condensation.
Referring to fig. 1, in a preferred embodiment, the power generation assembly includes a generator 100 and a working medium circulation pump 110, and the generator, the condenser, the working medium circulation pump and the evaporator are sequentially and circularly connected. It should be noted that the connection mentioned in the technical solution of the present invention includes but is not limited to a pipe connection, and can be specifically selected according to actual needs.
The utility model discloses a high temperature and low temperature hot water from circulation system of simulation geothermal power generation, high temperature hot water circulates between high temperature water tank and evaporimeter, low temperature hot water circulates between low temperature water tank and condenser, the working medium in the electricity generation subassembly pipeline passes through the turbo rotation in the evaporimeter evaporation formation organic working medium steam drive generator and realizes the electricity generation, organic working medium after the electricity generation converts the liquid into once more after the condenser condensation, and send into the evaporimeter once more through the working medium circulating pump, repeat above-mentioned step, realize the continuous incessant electricity generation of generator. The utility model discloses a high temperature and low temperature hot water of simulation geothermal power generation compare with the geothermal power generation simulation test system that traditional tail water directly discharged from the circulation system, have realized the make full use of the inside hot water heat energy of power generation facility, can greatly save the electric energy.
Referring to fig. 1, in a preferred embodiment, the working medium circulation temperature adjustment assembly includes a condenser 120, a first compressor 130 and an evaporator 140, which are connected in turn in a circulation manner, the condenser is disposed in the high-temperature water tank, and the evaporator is disposed in the low-temperature water tank. The utility model discloses the effect of the medium circulation subassembly that adjusts the temperature among the technical scheme does: the working medium in the working medium circulation temperature adjusting assembly pipeline extracts heat from the low-temperature water tank and provides heat for the high-temperature water tank accurately so that the water supply temperature of the high-temperature water tank is constant at a preset temperature value, meanwhile, the working medium circulation temperature adjusting assembly can also play a role in exchanging heat with the low-temperature water tank and cooling to provide cooling capacity, so that the water supply temperature of the low-temperature water tank is basically maintained at a preset value, main heat and cooling capacity can be provided for the high-temperature water tank and the low-temperature water tank through the working medium circulation temperature adjusting assembly, and the high-temperature and low-temperature hot water self-circulation system.
Referring to fig. 1, in a preferred embodiment, a first throttle valve 150 is connected between the evaporation pipe and the condensation pipe. The throttle valve is a valve which realizes the pressure reduction of liquid working medium and controls the flow of fluid at the same time by changing the throttle section or the throttle length. In one scheme, the throttling valve in the utility model can be connected with the one-way valve in series to form a one-way throttling valve, thereby controlling the working medium to realize one-way flow in the pipeline; in another kind of scheme the utility model discloses a choke valve can also constitute throttle speed control system with the overflow valve cooperation to the size of accurate control tube internal working medium flow in the pipeline.
The utility model discloses working medium circulation temperature adjustment subassembly among the technical scheme is at specific during operation, and the liquid organic working medium in the pipeline passes through the evaporation tube and absorbs low temperature water tank's heat vaporization, and the gaseous working medium that produces compresses into high-pressure gas in first compressor, then liquefies and gives high temperature water tank with heat release in the condenser pipe, realizes drawing and carrying the heat to high temperature water tank from low temperature water tank. By controlling the power of the first compressor and the opening of the first throttle valve, the temperature of the water in the high-temperature water tank can be accurately ensured to be constant at the preset temperature, and meanwhile, the temperature of the water in the low-temperature water tank is basically maintained at the preset temperature.
In a preferred embodiment, the utility model discloses a high temperature of simulation geothermal power generation and working medium circulation temperature regulating assembly in the low temperature hot water self-circulation system are not limited to one, also can adopt a plurality of working medium circulation temperature regulating assemblies or adopt a plurality of compressors to combine in the working medium circulation temperature regulating assembly to can carry out temperature coarse adjusting and fine tuning, realize more accurate temperature control.
In a preferred embodiment, the generator is a magnetic levitation steam turbine generator. The magnetic suspension generator adopts a magnetic suspension technology, the rotor of the turbonator is suspended in a certain space during working, the mechanical friction resistance during power generation can be basically ignored, the operation is stable, the rotating speed is high, and the power generation efficiency is higher than that of a common turbonator during power generation.
Referring to fig. 1, in a preferred embodiment, the low temperature hot water temperature compensating assembly 160 includes a first heat exchanger 170, a second compressor 180 and a second heat exchanger 190, which are connected in series in a cycle. The utility model discloses low temperature hot water temperature compensation subassembly among the technical scheme can judge according to low temperature water tank's water supply temperature that start refrigeration still heats the mode, is refrigeration cycle during working medium clockwise circulation, for heating the circulation during anticlockwise circulation.
In a preferred embodiment, the first heat exchanger is a tubular heat exchanger, and the second heat exchanger is an air-cooled heat exchanger.
In a preferred embodiment, the first heat exchanger is disposed in the low temperature water tank.
The first heat exchanger and the second heat exchanger in the utility model realize different functions under different working conditions, and the first heat exchanger in the heat exchange assembly is arranged in the low-temperature water tank and is an evaporator of refrigeration cycle and a condenser of heating cycle; the second heat exchanger is arranged outdoors and is a condenser of a refrigeration cycle and an evaporator of a heating cycle. The utility model provides a heat exchange assembly's effect lies in the water supply temperature in the accurate control low temperature water tank.
Referring to fig. 1, in a preferred embodiment, a second throttle valve 200 is connected between the first and second heat exchangers.
The utility model discloses a process of the concrete regulation and control temperature of heat exchange assembly does:
1) if the water temperature of the low-temperature water tank is higher than the preset temperature, it is shown that the heat extracted from the low-temperature water tank by the working medium circulation temperature adjusting assembly is smaller than the heat discharged to the low-temperature water tank when the working medium is cooled after the magnetic suspension generator generates electricity, at the moment, the low-temperature hot water temperature compensation assembly starts a refrigeration cycle to discharge the redundant heat in the low-temperature water tank to the atmosphere, in the process, the organic working medium is evaporated and refrigerated in the first heat exchanger, the generated gaseous working medium is compressed and pressurized by the second compressor, the high-pressure working medium enters the second heat exchanger to be condensed and released to obtain a liquid working medium, and the obtained liquid working medium is depressurized.
2) If the water temperature of the low-temperature water tank is lower than the preset temperature, the fact that the heat extracted from the low-temperature water tank by the working medium circulation temperature adjusting assembly is larger than the heat discharged to the low-temperature water tank when the working medium is cooled after the magnetic suspension generator generates electricity is shown, and at the moment, the low-temperature hot water temperature compensation assembly starts heating circulation to supplement heat for the low-temperature water tank by outdoor air heat energy; in the process, the working medium is condensed in the first heat exchanger to release heat, the generated liquid working medium is depressurized through the second throttle valve, the low-pressure working medium enters the second heat exchanger to be evaporated and absorb heat, and the obtained gaseous working medium is compressed and pressurized by the second compressor and returns to the first heat exchanger.
In a preferred embodiment, the low-temperature hot water temperature compensation assembly can also be arranged in the high-temperature water tank only or in both the high-temperature water tank and the low-temperature water tank, and of course, heating wires for auxiliary heating and semiconductor material for auxiliary refrigeration can also be arranged in the high-temperature water tank and/or the low-temperature water tank to achieve more accurate temperature control.
The utility model discloses a high temperature and low temperature hot water from circulation system of simulation geothermal power generation have accurate controllable, stable energy-conserving hot water supply system, provide stable heat source and cold source for magnetic suspension turbine power generation system's experimental test.
The utility model discloses a high temperature and low temperature hot water self-circulation system of simulation geothermal power generation have adopted hydrothermal self-loopa mode: the high-temperature water tank and the evaporator form a closed circulation loop, and the high-temperature hot water circulating pump is used as power to continuously transfer heat from the high-temperature water tank to the power generation equipment; the low-temperature water tank and the condenser form a closed circulation loop, and a low-temperature hot water circulating pump is used as power to continuously transfer heat from the power generation equipment to the low-temperature water tank.
The accurate temperature control mode of the high-temperature water tank and the low-temperature water tank is adopted: generally speaking, it is difficult to realize that the high-temperature water tank and the low-temperature water tank are accurately maintained at the preset temperature simultaneously only by means of a working medium circulation temperature adjustment assembly, therefore, the utility model discloses a method that the working medium circulation temperature adjustment assembly is combined with the low-temperature hot water temperature compensation assembly, the working medium circulation temperature adjustment assembly heats the high-temperature water tank and simultaneously cools the low-temperature water tank in reverse, so that the temperature of the high-temperature water tank is accurately controlled at the preset hot water temperature, and the temperature of the low-temperature water tank is basically maintained at the; the low-temperature hot water temperature compensation assembly can heat or refrigerate the low-temperature water tank according to the requirement of the low-temperature water tank, so that the temperature of the low-temperature water tank is accurately maintained at the preset low-temperature hot water temperature.
The preferred heat exchanger arrangement is adopted: a condensing pipe and an evaporating pipe of the working medium circulation temperature adjusting assembly are respectively arranged in the high-temperature water tank and the low-temperature water tank; the first heat exchanger and the second heat exchanger of the low-temperature hot water temperature compensation assembly are respectively arranged in the low-temperature water tank and outdoors, and the functions of the first heat exchanger and the second heat exchanger can be interchanged in a cooling mode/a heating mode.
To sum up, the utility model provides a pair of high temperature and low temperature hot water from circulation system of simulation geothermal power generation, including the low temperature hot water circulation subassembly of cyclic connection in proper order, working medium circulation temperature adjustment subassembly, high temperature hot water circulation subassembly and electricity generation subassembly, and with the low temperature hot water temperature compensation subassembly that low temperature hot water circulation subassembly links to each other. The high-temperature hot water circulation assembly is used for a heat source of the power generation assembly; the low-temperature hot water circulation assembly is used for a cold source of the power generation assembly; working medium circulation temperature adjustment subassembly is used for regulating and controlling temperature balance between heat source and the cold source, low temperature hot water temperature compensation subassembly is used for the temperature compensation of cold source, the utility model discloses the high temperature of simulation geothermal power generation and the hot water in high temperature hot water circulation subassembly in the low temperature hot water circulation subassembly and the low temperature hot water circulation subassembly of low temperature hot water self-circulation can also carry out thermal exchange through working medium circulation temperature adjustment subassembly when carrying out self internal circulation, in addition, combine low temperature hot water temperature compensation subassembly, realize the accurate control of device temperature, also realized the make full use of the inside hot water heat energy of device, compare the very big electric energy that saves with the geothermal power generation test device that traditional tail water directly discharged, reduce the cost of experiment.
It is to be understood that the invention is not limited to the above-described embodiments, and that modifications and variations may be made by those skilled in the art in light of the above teachings, and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (10)
1. The high-temperature and low-temperature hot water self-circulation system for simulating geothermal power generation is characterized by comprising a low-temperature hot water circulation component, a working medium circulation temperature adjusting component, a high-temperature hot water circulation component, a power generation component and a low-temperature hot water temperature compensation component, wherein the low-temperature hot water circulation component, the working medium circulation temperature adjusting component, the high-temperature hot water circulation component and the power generation component are sequentially connected in a circulation manner, and the low.
2. The high-temperature and low-temperature hot water self-circulation system for simulating geothermal power generation according to claim 1, wherein the high-temperature hot water circulation assembly comprises a high-temperature water tank, a high-temperature hot water circulation pump and an evaporator which are sequentially and circularly connected, and the low-temperature hot water circulation assembly comprises a low-temperature water tank, a low-temperature hot water circulation pump and a condenser which are sequentially and circularly connected.
3. The high-temperature and low-temperature hot water self-circulation system for simulating geothermal power generation according to claim 2, wherein the working medium circulation temperature adjustment assembly comprises a condensation pipe, a first compressor and an evaporation pipe which are sequentially and circularly connected, the condensation pipe is arranged in the high-temperature water tank, and the evaporation pipe is arranged in the low-temperature water tank.
4. The high and low temperature hot water self-circulation system simulating geothermal power generation according to claim 3, wherein a first throttle valve is connected between the evaporation pipe and the condensation pipe.
5. The high-temperature and low-temperature hot water self-circulation system for simulating geothermal power generation according to claim 2, wherein the power generation assembly comprises a power generator and a working medium circulating pump, and the power generator, the condenser, the working medium circulating pump and the evaporator are sequentially connected in a circulating manner.
6. The high and low temperature hot water self-circulation system that simulates geothermal power generation of claim 5, wherein the generator is a magnetic levitation turbine generator.
7. The high and low temperature hot water self-circulation system for simulating geothermal power generation according to claim 2, wherein the low temperature hot water temperature compensation assembly comprises a first heat exchanger, a second compressor and a second heat exchanger which are sequentially and circularly connected.
8. The high and low temperature hot water self-circulation system for modeling geothermal power generation of claim 7, wherein the first heat exchanger is a tubular heat exchanger and the second heat exchanger is an air cooled heat exchanger.
9. The high and low temperature hot water self-circulation system that simulates geothermal power generation of claim 8, wherein the first heat exchanger is disposed within the low temperature water tank.
10. The high and low temperature hot water self-circulation system simulating geothermal power generation of claim 9, wherein a second throttle valve is connected between the first and second heat exchangers.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110131114A (en) * | 2019-05-31 | 2019-08-16 | 深圳大学 | A kind of high temperature and low-temperature water heating self-circulation system for simulating geothermal power generation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110131114A (en) * | 2019-05-31 | 2019-08-16 | 深圳大学 | A kind of high temperature and low-temperature water heating self-circulation system for simulating geothermal power generation |
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Effective date of registration: 20201216 Address after: 518060 No. 3688 Nanhai Road, Shenzhen, Guangdong, Nanshan District Patentee after: SHENZHEN University Patentee after: Shenzhen Union Clean Energy Research Institute Patentee after: Jiangsu Blessing Technology Co.,Ltd. Address before: 518060 No. 3688 Nanhai Road, Shenzhen, Guangdong, Nanshan District Patentee before: SHENZHEN University Patentee before: Jiangsu Blessing Technology Co.,Ltd. |
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