CN217362931U - Thermovoltaic power generation system utilizing diamond tail gas - Google Patents
Thermovoltaic power generation system utilizing diamond tail gas Download PDFInfo
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- CN217362931U CN217362931U CN202220616991.6U CN202220616991U CN217362931U CN 217362931 U CN217362931 U CN 217362931U CN 202220616991 U CN202220616991 U CN 202220616991U CN 217362931 U CN217362931 U CN 217362931U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
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Abstract
The utility model relates to a thermovoltaic power generation technical field, more specifically say, relate to an utilize thermovoltaic power generation system of diamond tail gas. The steam generator comprises a boiler, the main steam pipeline, the power generation system, hydrogen production system and diamond production system, the power generation system includes hot volt power generation facility, hot volt power generation module cold junction entry has the cold water source through cold water piping connection, hot volt power generation module cold junction export is through pipe connection water terminal, steam branch pipeline and hot volt power generation module hot junction entry linkage, hot volt power generation module hot junction export is through pipeline and hydrogen production headtotail, hydrogen production system is through supplying gas pipeline and diamond production headtotail, diamond production system passes through the tail gas pipeline and is connected with the boiler. The system can generate electricity by using the waste hydrogen and gas, forms the cascade utilization of energy, makes a contribution to the sustainable development of economy, can relieve the tension of regional energy, and even can bring huge economic benefits. The utility model discloses mainly be applied to in the aspect of the diamond tail gas electricity generation.
Description
Technical Field
The utility model relates to a thermovoltaic power generation technical field, more specifically say, relate to an utilize thermovoltaic power generation system of diamond tail gas.
Background
The application field of the artificial diamond is very wide, and almost relates to various fields of the national civilian, from home decoration to high-tech fields such as microelectronics, aerospace and the like. The popularization and application of the diamond in the aspects of cold processing of optical glass, geological drilling, mechanical processing of ceramics, automobile parts and the like, metal wire drawing and the like cause revolutionary technological reform. From the national view, many diamond-producing factories adopt the chemical vapor deposition method to produce diamond, and carbon-containing gas sources are used as raw materials, generally methane and hydrogen, and plasma is generated under certain pressure through certain energy input such as microwave, hot wire, direct current and the like, carbon-containing gas is decomposed in the plasma, so that carbon-carbon bonds are broken to form carbon-carbon bonds in a diamond structure and are continuously combined to grow up, and the method for synthesizing diamond has the advantages of high synthesis rate, high quality, easiness in control and the like, and is the mainstream trend of development. However, a large amount of heat is released during the synthesis of diamond, and this part of heat is generally wasted and not effectively utilized, and furthermore, the treatment of methane and hydrogen off-gas for diamond synthesis is a troublesome problem.
Many diamond factories have such thermal resources nationwide, but most of them are not used at present, and hydrogen and gas used for producing diamond are directly discharged to the atmosphere, which causes great waste of resources.
SUMMERY OF THE UTILITY MODEL
For overcoming the defects existing in the prior art, the utility model provides an utilize the thermovoltaic power generation system of diamond tail gas. The system can reduce the direct discharge of hydrogen and waste gas generated in the diamond synthesis production process to the atmosphere, avoid atmospheric pollution, participate in combustion as fuel, save energy cost, design power generation, save investment for related enterprises and bring huge economic and environmental benefits.
In order to solve the technical problem, the utility model discloses the technical scheme who takes does:
a thermovoltaic power generation system utilizing diamond tail gas comprises a boiler, a steam main pipeline, a power generation system, a hydrogen production system and a diamond production system, wherein the power generation system comprises a thermovoltaic power generation device, the thermovoltaic power generation device is provided with a thermovoltaic power generation module hot end inlet, a thermovoltaic power generation module hot end outlet, a thermovoltaic power generation module cold end inlet and a thermovoltaic power generation module cold end outlet, the thermovoltaic power generation module cold end inlet is connected with a cold water source through a cold water pipe, the thermovoltaic power generation module cold end outlet is connected with a water terminal through a pipeline, the boiler is connected with the steam main pipeline, the steam main pipeline is connected with a steam branch pipeline, the steam branch pipeline is connected with the thermovoltaic power generation module hot end inlet, the thermovoltaic power generation module hot end outlet is connected with the hydrogen production system through a pipeline, and the hydrogen production system is connected with the diamond production system through an air supply pipeline, the diamond production system is connected with a boiler through a tail gas pipeline.
The hydrogen production system comprises a reactor and a gas storage tank, wherein the reactor is connected with a hot end outlet of the thermovoltaic power generation module through a pipeline, the gas storage tank is connected with the reactor through a pipeline, the reactor is connected with the diamond production system through an air supply pipeline, and the gas storage tank is communicated with the air supply pipeline through a gas pipeline.
The diamond production system comprises a vacuum growth chamber and a quartz window arranged at the top of the vacuum growth chamber, a microwave source is arranged at the top of the quartz window, seed crystals are placed in the vacuum growth chamber, the vacuum growth chamber is connected with a gas storage tank and a reactor through a gas pipeline and a gas supply pipeline respectively, and the vacuum growth chamber is connected with a boiler through a tail gas pipeline.
The bottom surface is provided with lift base plate platform in the vacuum growth room, the seed crystal is placed in the upper surface of lift base plate platform.
And a short-circuit piston and a three-screw impedance matching system are arranged above the quartz window.
And an observation window is formed in the side wall of the vacuum growth chamber.
The thermovoltaic power generation devices are provided with a plurality of thermovoltaic power generation devices, and the thermovoltaic power generation devices are connected in parallel and/or in series.
And the steam branch pipeline is provided with a regulating valve, a flowmeter, a temperature sensor and a pressure sensor.
The water using terminal is a boiler or a heating pipeline.
The hydrogen gas circuit valve is arranged on the gas supply pipeline, the gas discharge valve is arranged on the tail gas pipeline, and the gas pipeline is provided with a gas circuit valve.
Compared with the prior art, the utility model discloses the beneficial effect who has does:
the steam generated by the boiler is utilized to produce hydrogen and generate electricity through the thermovoltaic power generation modules, the number of the thermovoltaic power generation modules and the arrangement mode of the thermovoltaic power generation modules can be determined according to the required heat exchange amount design, so that the efficiency is maximized, and the optimal power generation effect is ensured; the cold water after heat exchange can also be supplied to a boiler, a heating pipeline or other terminals needing water through pipelines; the high-temperature heat source infrastructure used by the power generation system is the original infrastructure for diamond production, the original structure is slightly changed, and the improvement and the installation are convenient. The short-circuit piston, the three-screw impedance matching system and the lifting substrate table are adjusted to ensure the stability of the plasma fireball and the stable operation of the device, and the seed crystal can be observed in real time through the observation window; the regulating valve can control the flow in the steam branch pipeline, and the flow meter, the temperature sensor and the pressure sensor can monitor the steam condition in the steam branch pipeline, so that the stability of diamond production and the maximization of thermovoltaic power generation efficiency are ensured; the tail gas pipeline transports tail gas generated in diamond production to the boiler to be used as fuel for burning the boiler, and energy recycling is achieved. This patent can reduce waste gas such as hydrogen that produces on the production technology and to atmospheric direct vent, avoids the atmosphere pollution, can participate in the burning as fuel again, and the energy cost is saved can design the electricity generation simultaneously, can practice thrift the investment and bring huge economy and environmental protection benefit for relevant enterprise. The system can be operated for a longer period of time with minimal maintenance. The system can utilize waste hydrogen and gas, and can generate electricity to form gradient utilization of energy. After the technology is mature, the technology is expected to be popularized in China, a novel energy-saving industry in China is possible to form, the technology makes a contribution to sustainable development of economy in China, the waste heat is well utilized, the shortage of regional energy can be relieved, and even huge economic benefits can be brought.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural view of the thermovoltaic power generation device according to another arrangement mode of the present invention;
FIG. 3 is a schematic structural view of a diamond production system of the present invention;
FIG. 4 is a schematic diagram of the hydrogen production system of the present invention;
in the figure: 1 is a boiler, 2 is a main steam pipeline, 3 is a branch steam pipeline, 4 is a hot end inlet of a thermovoltaic power generation module, 5 is a hot end outlet of the thermovoltaic power generation module, 6 is a reactor, 7 is a gas storage tank, 8 is a gas pipeline, 9 is a microwave source, 10 is a short-circuit piston, 11 is a gas supply pipeline, 12 is a three-screw impedance matching system, 13 is a quartz window, 14 is a vacuum growth chamber, 15 is a plasma fireball, 16 is a seed crystal, 17 is a lifting base plate, 18 is an observation window, 19 is a cold water source, 20 is a cold water pipe, 21 is a cold end inlet of the thermovoltaic power generation module, 22 is a cold end outlet of the thermovoltaic power generation module, 23 is a tail gas pipeline, 24 is a pressure regulating valve, 25 is a flowmeter, 26 is a temperature sensor, 27 is a pressure sensor, 28 is a valve, 28-a is a first valve, 28-b is a second valve, 28-c is a hydrogen gas circuit valve, 28-d is a third valve, a fourth valve, a, 28-e is a gas circuit valve, 28-f is a gas release valve, and 29 is a thermovoltaic power generation device.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
As shown in fig. 1 to 4, a thermovoltaic power generation system using diamond tail gas comprises a boiler 1, a main steam pipeline 2, a power generation system, a hydrogen production system and a diamond production system, wherein the power generation system comprises a thermovoltaic power generation device 29, the inside of the thermovoltaic power generation device 29 comprises a hot end circulation system and a cold end circulation system, the thermovoltaic power generation device 29 can realize the functions of a traditional heat exchanger, a thermovoltaic power generation module hot end inlet 4, a thermovoltaic power generation module hot end outlet 5, a thermovoltaic power generation module cold end inlet 21 and a thermovoltaic power generation module cold end outlet 22 are arranged on the thermovoltaic power generation device 29, the hot end circulation system is communicated with the thermovoltaic power generation module hot end inlet 4 and the thermovoltaic power generation module cold end outlet 5, the cold end circulation system is communicated with the thermovoltaic power generation module cold end inlet 21 and the thermovoltaic power generation module cold end outlet 22, the cold end inlet 21 is connected with a cold water source 19 through a cold water pipe 20, the cold end outlet 22 of the thermovoltaic power generation module is connected with a water using terminal through a pipeline, a first valve 28-a is arranged on the pipeline connecting the cold end outlet 22 of the thermovoltaic power generation module with the water using terminal, the boiler 1 is connected with the steam main pipeline 2, the steam main pipeline 2 is connected with the steam branch pipeline 3, the steam branch pipeline 3 is connected with the hot end inlet 4 of the thermovoltaic power generation module, the hot end outlet 5 of the thermovoltaic power generation module is connected with a hydrogen production system through a pipeline, cold water and hot water reversely flow in the thermovoltaic power generation device 29, when hot water and cold water circularly flow until the power is stable, the emitted electricity can be used for the use of a user terminal, the hydrogen production system is connected with the diamond production system through the air supply pipeline 11, and the diamond production system is connected with the boiler 1 through the tail gas pipeline 23. High-temperature steam generated by the boiler 1 enters a heat circulation system of the thermovoltaic power generation device 29 through a thermovoltaic power generation module hot end inlet 4 along a steam main pipeline 2 and a steam branch pipeline 3, then enters a hydrogen production system through a thermovoltaic power generation module hot end outlet 5, the hydrogen production system provides preparation gas for a diamond production system through an air supply pipeline 11, the diamond is prepared by the diamond production system, tail gas generated by diamond production is conveyed to the boiler 1 through a tail gas pipeline 23, and the tail gas can be used as fuel for burning the boiler 1. A combined system comprising a hydrogen production system, a diamond production system and a power generation system is established. The waste hydrogen and gas can be utilized to generate electricity at the same time, and the cascade utilization of energy is formed.
Preferably, the hydrogen production system comprises a reactor 6 and a gas storage tank 7, the reactor 6 is connected with a hot end outlet 5 of the thermovoltaic power generation module through a pipeline, a second valve 28-b is arranged on the pipeline connecting the reactor 6 and the hot end outlet 5 of the thermovoltaic power generation module, the gas storage tank 7 is connected with the reactor 6 through a pipeline, a third valve 28-d is arranged on the pipeline connecting the reactor 6 and the gas storage tank 7, the reactor 6 is connected with the diamond production system through a gas supply pipeline 11, and the gas storage tank 7 is communicated with the gas supply pipeline 11 through a gas pipeline 8. And opening the second valve 28-b, allowing steam to enter the reactor through the thermovoltaic power generation device 29, opening the third valve 28-d, allowing gas in the gas storage tank 7 to enter the reactor 6, allowing the gas and the steam to undergo a cracking reaction in the reactor 6 to generate hydrogen, and allowing the purified hydrogen and the gas input into the reactor 6 through the gas pipeline 8 to serve as raw materials to generate diamond.
Preferably, the diamond production system comprises a vacuum growth chamber 14 and a quartz window 13 arranged on the top of the vacuum growth chamber, the microwave source 9 is arranged on the top of the quartz window 13, the seed crystal 16 is placed in the vacuum growth chamber 14, the vacuum growth chamber 14 is respectively connected with a gas storage tank 7 and a reactor 6 through a gas pipeline 8 and an air feed pipeline 11, and the vacuum growth chamber 14 is connected with the boiler 1 through a tail gas pipeline 23. The generated hydrogen and gas enter the vacuum growth chamber 14, a plasma fireball 15 is formed under the action of the microwave source 9, the plasma fireball 15 heats the seed crystal 16, the temperature of the growth surface of the seed crystal 16 meets the growth requirement, and the gas is introduced to start to deposit and grow the monocrystal diamond and gradually form the artificial diamond.
Preferably, the inner bottom surface of the vacuum growth chamber 14 is provided with an elevating substrate stage 17, and the seed crystal 16 is placed on the upper surface of the elevating substrate stage 17. The lifting substrate table 17 can adjust the height of the seed crystal 16 and ensure that the seed crystal 16 is contacted with the plasma fireball 15 at a proper position
Preferably, a short-circuiting piston 10 and a three-screw impedance matching system 12 are arranged above the quartz window 13, and the short-circuiting piston 10 and the three-screw impedance matching system 12 ensure the stability of the plasma fireball 15 and the stable operation of the vacuum growth chamber 14.
Preferably, the side wall of the vacuum growth chamber 14 is opened with an observation window 18. The seed crystal 16 may be monitored in real time through the viewing window 18.
Preferably, a plurality of thermovoltaic power generators 29 are provided, and a plurality of thermovoltaic power generators 29 are connected in parallel and/or in series. If the thermovoltaic power generation devices 29 are arranged in the manner shown in fig. 1, two thermovoltaic power generation devices 29 form one power generation unit, and a plurality of power generation units are connected in parallel, in each unit, the thermovoltaic power generation module hot end outlet 5 and the thermovoltaic power generation module cold end outlet 22 of one thermovoltaic power generation device 29 are respectively connected with the thermovoltaic power generation module hot end inlet 4 and the thermovoltaic power generation module cold end inlet 21 of the other thermovoltaic power generation device 29, which is equivalent to connecting two thermovoltaic power generation devices 29 in series; if the thermovoltaic power generation devices 29 are arranged in the manner shown in fig. 2, a plurality of thermovoltaic power generation devices 29 are connected in parallel, a thermovoltaic power generation module hot end inlet 4 of each thermovoltaic power generation device 29 is connected with the steam branch pipeline 3, a thermovoltaic power generation module hot end outlet 5 of each thermovoltaic power generation device 29 is connected with the reactor 6, a cold water source 19 delivers cold water to a thermovoltaic power generation module cold end inlet 21 of each thermovoltaic power generation device 29 connected in parallel through a cold water pipe 20, and a thermovoltaic power generation module cold end outlet 22 of each thermovoltaic power generation device 29 is connected with a water using terminal. Different numbers and different series-parallel connection modes can be set for the thermovoltaic power generation device 29 according to the actual heat exchange requirement. A plurality of thermovoltaic power generation devices 29 are preferably utilized in series-parallel. The corresponding required heat exchange quantity can be calculated, and meanwhile, the series-parallel connection structure of the heat exchange quantity is changed to ensure the optimal power generation effect.
Preferably, the steam branch pipe 3 is provided with a regulating valve 24, a flow meter 25, a temperature sensor 26 and a pressure sensor 27. The regulating valve 24 can control the flow rate of steam in the steam branch pipe 3, and the flow meter 25, the temperature sensor 26 and the pressure sensor 27 can monitor the flow rate, the temperature and the air pressure in the steam branch pipe 3 in real time.
Preferably, the water is terminated in the boiler 1 or in the heating line. The water exiting the cold outlet 22 of the thermovoltaic power module can be used as heating or water fed to the boiler 1, depending on the actual demand.
Preferably, the gas supply pipeline 11 is provided with a hydrogen gas circuit valve 28-c, the tail gas pipeline 23 is provided with a gas discharge valve 28-f, and the gas pipeline 8 is provided with a gas circuit valve 28-e.
The boiler 1 generates high-temperature steam, the steam after heat exchange of the thermovoltaic power generation device reacts with gas to generate hydrogen in the reactor 6, the thermovoltaic power generation device 29 is connected with an electricity utilization terminal, a hydrogen gas path valve 28-c is opened, the generated hydrogen and the gas form a plasma fireball 15 in the vacuum growth chamber 14 under the action of a microwave source 9, the vacuum growth chamber 14 is filled with the hydrogen, the air pressure starts to rise slowly, the microwave power 9 is adjusted, the anode current is loaded to about 150mA, the frequency is 2.45GHz, the gas forms the plasma fireball 15 in the vacuum growth chamber 14, the lifting substrate table 17 is adjusted to ensure that the seed crystal 16 is contacted with the plasma fireball 15 at a proper position, the plasma fireball 15 heats the seed crystal 16, the temperature of the growth surface of the seed crystal 16 meets the growth requirement, the gas is filled, the deposition growth of monocrystal diamond starts and the artificial diamond is gradually formed, after the growth of the seed crystal 16 is finished, the gas path valve 28-e is closed, the sample is etched in the hydrogen plasma for a period of time, the growth condition of the seed crystal 16 can be observed through the observation window 18, the seed crystal 16 is cooled to room temperature in the hydrogen flow, the hydrogen gas path valve 28-c is closed, the gas release valve 28-f of the vacuum growth chamber 14 is opened, the sample is taken out after the indoor air pressure is recovered to normal pressure, the tail gas for producing diamond is left in the boiler 1 through the tail gas pipeline 23 and is used as the boiler, 1 fuel generates water vapor, hydrogen capable of utilizing diamond raw materials can be produced after passing through a thermovoltaic power generation system, and the cyclic utilization of energy is realized.
The thermovoltaic generation technology is based on the thermoelectric phenomenon in which the seebeck effect causes a voltage difference between two substances through a temperature difference of two different electrical conductors or semiconductors. In 1821, the first effect of thermoelectricity was first observed in Thomas John Seebeck, where current would flow continuously through the circuit if two dissimilar metals were to meet at two points and the two junctions were to maintain different temperatures. The microscopic nature of the Seebeck effect is a result of the diffusion of carriers within the hot-side conductor towards the cold-side due to the temperature gradient. Thermoelectric power converters have no moving parts, are compact, quiet, highly reliable and environmentally friendly. Thus, the entire system can be operated for a longer period of time with minimal maintenance. This patent includes hydrogen manufacturing system, production diamond system and power generation system, not only can utilize discarded hydrogen and gas also can generate electricity simultaneously, forms the cascade utilization of the energy.
The above description has been made in detail only for the preferred embodiment of the present invention, but the present invention is not limited to the above embodiment, and various changes can be made without departing from the spirit of the present invention within the knowledge scope of those skilled in the art, and all such changes are intended to be encompassed by the present invention.
Claims (10)
1. The utility model provides an utilize thermovoltaic power generation system of diamond tail gas which characterized in that: the diamond, the hydrogen production system is connected with the diamond production system through an air supply pipeline (11), and the diamond production system is connected with the boiler (1) through a tail gas pipeline (23).
2. The system for generating electricity from thermovoltaic energy using diamond tail gas according to claim 1, wherein: the hydrogen production system comprises a reactor (6) and a gas storage tank (7), wherein the reactor (6) is connected with a hot end outlet (5) of the thermovoltaic power generation module through a pipeline, the gas storage tank (7) is connected with the reactor (6) through a pipeline, the reactor (6) is connected with a diamond production system through a gas supply pipeline (11), and the gas storage tank (7) is communicated with the gas supply pipeline (11) through a gas pipeline (8).
3. The thermovoltaic power generation system using diamond off-gas according to claim 1, wherein: diamond production system includes quartz window (13) that vacuum growth room (14) and its top set up, quartz window (13) top is provided with microwave source (9), seed crystal (16) have been placed in vacuum growth room (14), and vacuum growth room (14) are connected with gas storage tank (7) and reactor (6) through gas pipeline (8) and air feed pipeline (11) respectively, and vacuum growth room (14) are connected with boiler (1) through tail gas pipeline (23).
4. The thermovoltaic power generation system using diamond off-gas according to claim 3, wherein: the bottom surface is provided with lift base plate platform (17) in vacuum growth room (14), the upper surface in lift base plate platform (17) is placed in seed crystal (16).
5. The thermovoltaic power generation system using diamond off-gas according to claim 3, wherein: and a short-circuit piston (10) and a three-screw impedance matching system (12) are arranged above the quartz window (13).
6. The thermovoltaic power generation system using diamond off-gas according to claim 3, wherein: an observation window (18) is arranged on the side wall of the vacuum growth chamber (14).
7. The thermovoltaic power generation system using diamond off-gas according to claim 1, wherein: the number of the thermovoltaic power generation devices (29) is multiple, and the thermovoltaic power generation devices (29) are connected in parallel and/or in series.
8. The thermovoltaic power generation system using diamond off-gas according to claim 1, wherein: the steam branch pipeline (3) is provided with a regulating valve (24), a flowmeter (25), a temperature sensor (26) and a pressure sensor (27).
9. The thermovoltaic power generation system using diamond off-gas according to claim 1, wherein: the water using terminal is a boiler (1) or a heating pipeline.
10. The thermovoltaic power generation system using diamond off-gas according to claim 2, wherein: a hydrogen gas circuit valve (28-c) is arranged on the gas supply pipeline (11), a gas discharge valve (28-f) is arranged on the tail gas pipeline (23), and a gas circuit valve (28-e) is arranged on the gas pipeline (8).
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| CN202220616991.6U CN217362931U (en) | 2022-03-21 | 2022-03-21 | Thermovoltaic power generation system utilizing diamond tail gas |
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| CN202220616991.6U CN217362931U (en) | 2022-03-21 | 2022-03-21 | Thermovoltaic power generation system utilizing diamond tail gas |
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