CN110630456A - Photovoltaic and geothermal combined mining simulation test device - Google Patents

Photovoltaic and geothermal combined mining simulation test device Download PDF

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Publication number
CN110630456A
CN110630456A CN201910941610.4A CN201910941610A CN110630456A CN 110630456 A CN110630456 A CN 110630456A CN 201910941610 A CN201910941610 A CN 201910941610A CN 110630456 A CN110630456 A CN 110630456A
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China
Prior art keywords
photovoltaic
water
heating
test
geothermal
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Granted
Application number
CN201910941610.4A
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Chinese (zh)
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CN110630456B (en
Inventor
祝学忠
祝嘉兴
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Hongmeng Energy Shandong Co Ltd
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Hongmeng Energy Shandong Co Ltd
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Priority to CN201910941610.4A priority Critical patent/CN110630456B/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03GSPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
    • F03G6/00Devices for producing mechanical power from solar energy
    • F03G6/06Devices for producing mechanical power from solar energy with solar energy concentrating means
    • F03G6/065Devices for producing mechanical power from solar energy with solar energy concentrating means having a Rankine cycle
    • F03G6/067Binary cycle plants where the fluid from the solar collector heats the working fluid via a heat exchanger
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24TGEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
    • F24T10/00Geothermal collectors
    • F24T10/10Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground
    • F24T10/13Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes
    • F24T10/15Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes using bent tubes; using tubes assembled with connectors or with return headers
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B25/00Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B25/00Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
    • G09B25/02Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes of industrial processes; of machinery
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/10Geothermal energy
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers
    • Y02E10/46Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines

Abstract

The invention relates to the field of exploration photovoltaic and geothermal simulation combined mining, in particular to the related problems of heat exchange effect, proportion and efficiency in a photovoltaic and geothermal combined mining project, and particularly relates to a photovoltaic and geothermal combined mining simulation test device which comprises a water storage device, an adjustable photovoltaic heating device, a geothermal simulation mining test device and a heat exchange device which are sequentially connected; the adjustable photovoltaic heating device is used for receiving water from the water storage device at the upstream of the adjustable photovoltaic heating device and heating the water, the geothermal simulation exploitation test device is used for receiving hot water heated by the adjustable photovoltaic heating device at the upstream of the geothermal simulation exploitation test device and completing a heat exchange test after the hot water is used, and the hot water flowing out of the geothermal simulation exploitation test device is used for exchanging heat for the heat exchange device at the downstream of the geothermal simulation exploitation test device. The device mainly explores a photovoltaic and geothermal simulation combined mining possibility scheme, and the heat exchange proportion and efficiency of the photovoltaic and geothermal in the whole device are high by adopting a special structural design; the heat exchange efficiency is good.

Description

Photovoltaic and geothermal combined mining simulation test device
Technical Field
The invention relates to the field of exploration photovoltaic and geothermal simulation combined mining, in particular to a photovoltaic and geothermal combined mining simulation test device, which solves the problems of heat exchange effect, proportion and efficiency in a photovoltaic and geothermal combined mining project.
Background
Solar energy refers to the heat radiation energy of the sun, and the main expression is the solar ray; in modern times it is commonly used to generate electricity or to power water heaters. The photovoltaic panel assembly is a power generation device which can generate direct current when exposed to the sun, and the main form of solar power generation is currently utilized. Like solar energy, solar energy and terrestrial heat are renewable, but are different in use, when geothermal energy is utilized at present, a geothermal system is usually constructed in the early stage, the geothermal system comprises a large number of high-power consumption devices, and a large amount of electric energy needs to be consumed in the process of keeping the normal operation of the geothermal system, so that a large amount of electric energy also needs to be consumed while the geothermal energy is utilized. Therefore, in view of the current situation, I have long researched and developed in view of the current situation of the industry in relation to the related tests related to photovoltaic and geothermal simulation combined mining. Although many units research the subject at present, most of research schemes and contents have the problems of unreasonable photovoltaic and geothermal matching, poor feasibility of technical schemes, poor heat exchange effect, low heat exchange efficiency and the like, and a reasonable and efficient research scheme designed for photovoltaic and ground combined mining still cannot be realized.
Disclosure of Invention
The technical scheme adopted by the invention for solving one of the technical problems is as follows: the photovoltaic and geothermal combined exploitation simulation test device comprises a water storage device, an adjustable photovoltaic heating device, a geothermal simulated exploitation test device and a heat exchange device which are sequentially connected; the adjustable photovoltaic heating device is used for receiving water from the upstream of the adjustable photovoltaic heating device and heating the water, the geothermal simulation exploitation test device is used for receiving hot water heated by the upstream adjustable photovoltaic heating device and utilizing the hot water to complete a heat exchange test, the hot water flowing out of the geothermal simulation exploitation test device is used for exchanging heat of the downstream heat exchange device, and the heat exchange device returns the water after heat exchange to the water storage device through a pipeline for cyclic utilization.
Preferably, the water storage device comprises a water tower 1 in which a large amount of cold water is stored, the water tower 1 is connected with a water pump 3 through a water delivery pipeline 2, the water delivery pipeline 2 is respectively connected with a water coil water inlet pipeline 4 and a direct water inlet pipeline 5 through a tee at an outlet of the water pump 3, and the water tower 1 is respectively communicated with a receiving part on the adjustable photovoltaic heating device through the water coil water inlet pipeline 4 and the direct water inlet pipeline 5.
The water coil water inlet pipeline 4 and the straight water inlet pipeline 5 are respectively provided with an auxiliary control and display instrument such as a flowmeter, a control valve, a thermometer and a pressure gauge, all parts and installation modes belong to the conventional common fittings and the simplest pipeline screwing connection, and belong to the most basic common knowledge in the prior art and construction, and are not shown in the figure.
Preferably, the adjustable photovoltaic heating device comprises a photovoltaic test table board 14, the supporting legs are installed below the photovoltaic test table board 14 for fixed support, a plurality of adjustable photovoltaic heating components are installed at equal intervals on the top of the annular outer ring of the fixed photovoltaic test table board 14 and the annular inner ring coaxially arranged with the annular outer ring, a photovoltaic heating tower 6 is installed at the central part of the photovoltaic test table board 14, a lifting adjusting mechanism for driving the photovoltaic heating tower to lift is installed at the lower part of the photovoltaic heating tower, and the photovoltaic heating components are used for heating water inside the photovoltaic heating tower.
Preferably, the photovoltaic heating assembly comprises a sunlight reflecting plate 9 for reflecting sunlight to the upper part of the photovoltaic heating tower 6, a reflecting plate fixing seat 10 fixed on the photovoltaic test table board 14 through screws is installed below the sunlight reflecting plate 9, an angle adjusting motor 11 is horizontally installed in a groove in the middle of the reflecting plate fixing seat 10 through screws, a driven belt wheel 13 is connected with a motor shaft of the angle adjusting motor 11 through a driving belt 12, and the back part below the sunlight reflecting plate 9 is matched with a driven shaft on the driven belt wheel 13 through a shaft hole to realize connection and fixation.
The whole photovoltaic exploitation sample device of this application is put outdoors, drives the rotation of sunlight reflection cup 9 through angle accommodate motor 11's drive under the shining of sunlight, and sunlight reflection board 9 reflects the sunlight with the angle that is fit for to the upper portion of photovoltaic heating tower 6 and forms the focus heating, because a plurality of rapid heating that can realize photovoltaic heating tower 6 of sunlight reflection board 9 circumference equipartition.
Preferably, the lifting adjusting mechanism comprises a lifting disc 18 which is movably arranged in a central hole of the photovoltaic test table top 14 and is coaxially arranged with the photovoltaic test table top, the upper end of the lifting disc 18 is fixedly connected with the photovoltaic heating tower 6 through a heat insulating material at the bottom of the lifting disc, a lifting motor fixing plate 15 which is fixedly welded at the bottom of the photovoltaic test table top 14 is coaxially arranged at the outer side of the lifting disc 18, a lifting motor 16 is fixedly connected below the center line of the lifting motor fixing plate 15, the upper end of the lifting motor 16 penetrates into the lifting motor fixing plate 15 and is screwed in a threaded hole of the lifting disc 18 through a screw rod matched with a screw rod fixedly connected with a motor shaft of the lifting motor 16, a guide rod 17 is movably inserted in a plurality of through holes around the lifting disc 18 respectively, and the upper end and the lower end of each guide rod 17 are respectively connected with the photovoltaic test table top 14 and the photovoltaic, The fixed plate 15 of the lifting motor is fixedly connected.
When outdoor sunlight irradiation angle changes, on the one hand sunlight reflecting plate 9 changes reflection angle through angle accommodate motor 11, thereby on the other hand drives lifting disk 18 to reciprocate under the effect of elevator motor 16 and drives photovoltaic heating tower 6 and reciprocate and guarantee that its heating position is upper portion region all the time, guarantees the heating effect.
Preferably, the photovoltaic heating tower 6 comprises a photovoltaic heating tower 6 shell, a heating coil 7 is installed in an annular space of an inner outer ring of the photovoltaic heating tower 6 shell, the heating coil 7 is spirally arranged from top to bottom along a central shaft of the photovoltaic heating tower 6, a lower water inlet end of the heating coil 7 is connected with the water coil water inlet pipeline 4, an upper outlet end of the heating coil 7 is communicated with the other water coil water inlet pipeline 4, an outlet end of the water coil water inlet pipeline 4 is connected with a coil steam-water separator 8, the coil steam-water separator 8 is used for respectively guiding steam in a coil steam-water mixture generated in the water coil water inlet pipeline 4 into a steam outlet at the top of a central through heating cavity of the photovoltaic heating tower 6 and collecting hot water into a total hot water outlet pipeline connected with a geothermal simulation exploitation test device, the solar water heater is characterized in that the lower portion of the center direct heating cavity of the tower shell of the photovoltaic heating tower 6 is communicated with the direct water inlet pipeline 5 to realize reheating, and water vapor generated by the photovoltaic heating tower 6 enters an external steam generator through a pipeline to generate electricity.
Heating coil 7 is located in the annular space of photovoltaic heating tower 6 outer lane, water coil pipe water intake line 4 carries water spiral heating in the heating coil 7 is lieing in heating coil pipe 7's upper end exit end the delivery port department of water coil pipe water intake line obtains coil pipe air-water mixture, and coil pipe steam-water mixture passes through water coil pipe outlet line and enters into coil pipe catch water 8, and steam among the coil pipe steam-water mixture enters into hot water in the steam outlet of photovoltaic heating tower 6 and converges total hot water outlet line.
In order to fully utilize the heat of the photovoltaic heating tower 6, the straight-through water inlet pipeline 5 conveys water to the middle of the photovoltaic heating tower 6 for heating, and straight-through water vapor enters a vapor outlet of the photovoltaic heating tower 6 and is converged into a total hot water outlet pipeline. And the water vapor generated by the photovoltaic heating tower 6 enters a steam generator through a pipeline to generate electricity, and the total hot water enters the hot dry rock geothermal simulation mining test device to be heated again. The general steam outlet, the water coil pipe steam-water mixed outlet and the straight-through hot water outlet pipeline of the geothermal simulation exploitation test device are provided with auxiliary control and display instruments such as a flowmeter, a control valve, a thermometer and a pressure gauge, all parts and installation modes belong to the existing common accessories and the simplest pipeline screwing connection, and the parts and the installation modes belong to the most basic common knowledge in the prior art and construction and are not shown in the drawing.
Preferably, the geothermal simulation mining test device comprises a geothermal simulation mining test bench 19, a pressure maintaining space which is composed of a plurality of annular pressure maintaining plates 25 with arc sections and used for placing the dry hot rock 23 is arranged above the geothermal simulated mining test table board 19, two ends of the hot dry rock 23 are respectively and symmetrically provided with a geothermal simulation mining sealing end cover 21, the geothermal simulation mining sealing end cover 21 is fixedly connected with the end part of the hot dry rock 23 at the corresponding position and is aligned through a sealing ring 24 for end face and annular sealing, the annular dimension pressing plates 25 are uniformly distributed in 4 along the circumferential direction to wrap the hot dry rock 23, a plurality of heating resistors 22 are inserted into each annular maintaining and pressing plate 25, heat generated by the heating resistors 23 heats the dry hot rock 23 through heat conduction of the annular maintaining and pressing plate 25, and a pressurizing assembly for increasing pressure is arranged on the periphery of the maintaining and pressing space along the circumference of the maintaining and pressing space.
Hot water after passing through the photovoltaic heating device enters the geothermal heating simulation test device through the geothermal exploitation water inlet pipeline 20, dry hot rocks 23 are fractured in advance to generate cracks inside the dry hot rocks, then the dry hot rocks are placed into a dimensional pressure space formed by annular dimensional pressure plates 25, the geothermal exploitation water inlet pipeline 20 is welded on a geothermal simulation exploitation sealing end cover 21, and the geothermal simulation exploitation sealing end covers 21 are positioned at two ends of the dry hot rocks 23 and aligned through sealing rings 24 to carry out end face and annular sealing. Thereby 4 parcel to hot dry rock 23 of realization are maintained to annular dimension clamp plate 25 circumferencial direction equipartition, and every annular dimension clamp plate 25 all inserts and has had a plurality of heating resistor 22, and the heat that heating resistor produced heats hot dry rock 23 through the heat-conduction of annular dimension clamp plate 25, and afterburning dimension clamp plate 26 is located annular dimension clamp plate 25 all around to carry out afterburning to annular dimension clamp plate 25 through double-screw bolt 27 and supporting nut.
Preferably, the pressurizing assembly comprises force application maintaining pressure plates 26 respectively arranged on the periphery of the maintaining pressure space, and fastening adjustment is realized between the force application maintaining pressure plates 26 which are arranged in parallel and oppositely through a stud 27 and nuts at two end parts of the stud 27.
The whole geothermal simulation heating device is placed on a geothermal simulation exploitation test table board 19, hot water heated by photovoltaic enters the geothermal exploitation simulation test device and carries out secondary heat exchange in an annular gap in the middle of the hot dry rock 23, and the water after the secondary heat exchange finally enters a heat exchanger 28 to transfer heat; the pressurizing assembly can effectively enhance the stress application to each annular maintaining plate 25, simultaneously ensure the sealing effect and realize better heat exchange of hot water in the cracks of the hot dry rock.
Preferably, the heat exchange device is a heat exchanger 28, a hot water inlet end of the heat exchanger 28 is communicated with a water outlet pipe opening of the geothermal simulation mining sealing end cover 21 on the geothermal simulation mining test device through a pipeline, and a water outlet end of the heat exchanger 28 is communicated with the inside of the water tower 1 of the water storage device.
The invention has the beneficial effects that:
1. the device mainly explores a photovoltaic and geothermal simulation combined mining possibility scheme, and the heat exchange proportion and efficiency of the photovoltaic and geothermal in the whole device are high by adopting a special structural design; the heat exchange efficiency is good;
2. the adjustable photovoltaic heating device and the geothermal simulation mining test device which are arranged in the device can realize the photovoltaic heating of water and the multiple heating and heat exchange of geothermal heating combination, thereby improving the heat exchange efficiency;
3. the adjustable photovoltaic heating device is internally and externally provided with the photovoltaic heating assembly with double rings, so that the photovoltaic heating tower can be efficiently heated;
4. the adjustable structural design of photovoltaic heating subassembly is convenient for look for the best reflection angle better, and the lift adjustment mechanism who adopts simultaneously can realize the position control to the photovoltaic heating tower, and dual regulation realizes optimal heating position and efficient heating efficiency.
Drawings
In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or components are generally identified by like reference numerals. In the drawings, elements or components are not necessarily drawn to scale.
Fig. 1 is an isometric view of a photovoltaic geothermal combined mining simulation test device according to the present application.
Fig. 2 is a schematic structural diagram of an adjustable photovoltaic heating apparatus according to the present application.
FIG. 3 is a schematic view of a photovoltaic heating tower and surrounding structures thereof according to the present application.
Fig. 4 is a schematic cross-sectional structural view of an adjustable photovoltaic heating apparatus according to the present application.
FIG. 5 is an isometric view of a geothermal simulated mining test device of the present application.
FIG. 6 is a schematic cross-sectional view of a geothermal simulation mining test device according to the present application.
In the figure, 1, a water tower; 2. A water delivery pipeline; 3. a water pump; 4. A water coil water inlet line; 5. A straight-through water inlet pipeline; 6. a photovoltaic heating tower; 7. a heating coil; 8. a coil water vapor separator; 9. a solar light reflecting plate; 10. a reflecting plate fixing seat; 11. an angle adjustment motor; 12. a drive belt; 13. a driven pulley; 14. a photovoltaic test table; 15. a lifting motor fixing plate; 16. a lifting motor; 17. a guide bar; 18. a lifting plate; 19. a geothermal simulation mining test table; 20. a geothermal exploitation water inlet pipe; 21. geothermal simulation mining of the sealing end cover; 22. a heating resistor; 23. hot dry rock; 24. a seal ring; 25. an annular maintenance plate; 26. force application maintaining and pressing plate; 27. a stud; 28. a heat exchanger.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1-6, the photovoltaic geothermal combined mining simulation test device comprises a water storage device, an adjustable photovoltaic heating device, a geothermal simulation mining test device and a heat exchange device which are connected in sequence; the adjustable photovoltaic heating device is used for receiving water from the upstream of the adjustable photovoltaic heating device and heating the water, the geothermal simulation exploitation test device is used for receiving hot water heated by the upstream adjustable photovoltaic heating device and utilizing the hot water to complete a heat exchange test, the hot water flowing out of the geothermal simulation exploitation test device is used for exchanging heat of the downstream heat exchange device, and the heat exchange device returns the water after heat exchange to the water storage device through a pipeline for cyclic utilization.
Preferably, the water storage device comprises a water tower 1 in which a large amount of cold water is stored, the water tower 1 is connected with a water pump 3 through a water delivery pipeline 2, the water delivery pipeline 2 is respectively connected with a water coil water inlet pipeline 4 and a direct water inlet pipeline 5 through a tee at an outlet of the water pump 3, and the water tower 1 is respectively communicated with a receiving part on the adjustable photovoltaic heating device through the water coil water inlet pipeline 4 and the direct water inlet pipeline 5.
The water coil water inlet pipeline 4 and the straight water inlet pipeline 5 are respectively provided with an auxiliary control and display instrument such as a flowmeter, a control valve, a thermometer and a pressure gauge, all parts and installation modes belong to the conventional common fittings and the simplest pipeline screwing connection, and belong to the most basic common knowledge in the prior art and construction, and are not shown in the figure.
Preferably, the adjustable photovoltaic heating device comprises a photovoltaic test table board 14, the supporting legs are installed below the photovoltaic test table board 14 for fixed support, a plurality of adjustable photovoltaic heating components are installed at equal intervals on the top of the annular outer ring of the fixed photovoltaic test table board 14 and the annular inner ring coaxially arranged with the annular outer ring, a photovoltaic heating tower 6 is installed at the central part of the photovoltaic test table board 14, a lifting adjusting mechanism for driving the photovoltaic heating tower to lift is installed at the lower part of the photovoltaic heating tower, and the photovoltaic heating components are used for heating water inside the photovoltaic heating tower.
Preferably, the photovoltaic heating assembly comprises a sunlight reflecting plate 9 for reflecting sunlight to the upper part of the photovoltaic heating tower 6, a reflecting plate fixing seat 10 fixed on the photovoltaic test table board 14 through screws is installed below the sunlight reflecting plate 9, an angle adjusting motor 11 is horizontally installed in a groove in the middle of the reflecting plate fixing seat 10 through screws, a driven belt wheel 13 is connected with a motor shaft of the angle adjusting motor 11 through a driving belt 12, and the back part below the sunlight reflecting plate 9 is matched with a driven shaft on the driven belt wheel 13 through a shaft hole to realize connection and fixation.
The whole photovoltaic exploitation sample device of this application is put outdoors, drives the rotation of sunlight reflection cup 9 through angle accommodate motor 11's drive under the shining of sunlight, and sunlight reflection board 9 reflects the sunlight with the angle that is fit for to the upper portion of photovoltaic heating tower 6 and forms the focus heating, because a plurality of rapid heating that can realize photovoltaic heating tower 6 of sunlight reflection board 9 circumference equipartition.
Preferably, the lifting adjusting mechanism comprises a lifting disc 18 which is movably arranged in a central hole of the photovoltaic test table top 14 and is coaxially arranged with the photovoltaic test table top, the upper end of the lifting disc 18 is fixedly connected with the photovoltaic heating tower 6 through a heat insulating material at the bottom of the lifting disc, a lifting motor fixing plate 15 which is fixedly welded at the bottom of the photovoltaic test table top 14 is coaxially arranged at the outer side of the lifting disc 18, a lifting motor 16 is fixedly connected below the center line of the lifting motor fixing plate 15, the upper end of the lifting motor 16 penetrates into the lifting motor fixing plate 15 and is screwed in a threaded hole of the lifting disc 18 through a screw rod matched with a screw rod fixedly connected with a motor shaft of the lifting motor 16, a guide rod 17 is movably inserted in a plurality of through holes around the lifting disc 18 respectively, and the upper end and the lower end of each guide rod 17 are respectively connected with the photovoltaic test table top 14 and the photovoltaic, The fixed plate 15 of the lifting motor is fixedly connected.
When outdoor sunlight irradiation angle changes, on the one hand sunlight reflecting plate 9 changes reflection angle through angle accommodate motor 11, thereby on the other hand drives lifting disk 18 to reciprocate under the effect of elevator motor 16 and drives photovoltaic heating tower 6 and reciprocate and guarantee that its heating position is upper portion region all the time, guarantees the heating effect.
Preferably, the photovoltaic heating tower 6 comprises a photovoltaic heating tower 6 shell, a heating coil 7 is installed in an annular space of an inner outer ring of the photovoltaic heating tower 6 shell, the heating coil 7 is spirally arranged from top to bottom along a central shaft of the photovoltaic heating tower 6, a lower water inlet end of the heating coil 7 is connected with the water coil water inlet pipeline 4, an upper outlet end of the heating coil 7 is communicated with the other water coil water inlet pipeline 4, an outlet end of the water coil water inlet pipeline 4 is connected with a coil steam-water separator 8, the coil steam-water separator 8 is used for respectively guiding steam in a coil steam-water mixture generated in the water coil water inlet pipeline 4 into a steam outlet at the top of a central through heating cavity of the photovoltaic heating tower 6 and collecting hot water into a total hot water outlet pipeline connected with a geothermal simulation exploitation test device, the solar water heater is characterized in that the lower portion of the center direct heating cavity of the tower shell of the photovoltaic heating tower 6 is communicated with the direct water inlet pipeline 5 to realize reheating, and water vapor generated by the photovoltaic heating tower 6 enters an external steam generator through a pipeline to generate electricity.
Heating coil 7 is located in the annular space of photovoltaic heating tower 6 outer lane, water coil pipe water intake line 4 carries water spiral heating in the heating coil 7 is lieing in heating coil pipe 7's upper end exit end the delivery port department of water coil pipe water intake line obtains coil pipe air-water mixture, and coil pipe steam-water mixture passes through water coil pipe outlet line and enters into coil pipe catch water 8, and steam among the coil pipe steam-water mixture enters into hot water in the steam outlet of photovoltaic heating tower 6 and converges total hot water outlet line.
In order to fully utilize the heat of the photovoltaic heating tower 6, the straight-through water inlet pipeline 5 conveys water to the middle of the photovoltaic heating tower 6 for heating, and straight-through water vapor enters a vapor outlet of the photovoltaic heating tower 6 and is converged into a total hot water outlet pipeline. And the water vapor generated by the photovoltaic heating tower 6 enters a steam generator through a pipeline to generate electricity, and the total hot water enters the hot dry rock geothermal simulation mining test device to be heated again. The general steam outlet, the water coil pipe steam-water mixed outlet and the straight-through hot water outlet pipeline of the geothermal simulation exploitation test device are provided with auxiliary control and display instruments such as a flowmeter, a control valve, a thermometer and a pressure gauge, all parts and installation modes belong to the existing common accessories and the simplest pipeline screwing connection, and the parts and the installation modes belong to the most basic common knowledge in the prior art and construction and are not shown in the drawing.
Preferably, the geothermal simulation mining test device comprises a geothermal simulation mining test table 19, a pressure maintaining space which is formed by a plurality of annular pressure maintaining plates 25 with arc-shaped sections and used for placing dry hot rocks 23 is arranged above the geothermal simulation mining test table 19, geothermal simulation mining sealing end covers 21 are respectively and symmetrically arranged at two ends of the dry hot rocks 23, a geothermal mining water inlet pipeline 20 is connected at a water inlet of the geothermal simulation mining sealing end cover 21, the geothermal simulation mining sealing end cover 21 is connected with the end parts of the dry hot rocks 23 at corresponding positions and aligned through a sealing ring 24 and sealed in an end face and annular shape, the annular pressure maintaining plates 25 are 4 pieces uniformly distributed in the circumferential direction to wrap the dry hot rocks 23, a plurality of heating resistors 22 are inserted into each annular pressure maintaining plate 25, and the heating resistors 22 are in a heating state of connecting an external power supply when working, the heat generated by the heating resistor 23 heats the dry hot rock 23 through the heat conduction of the annular maintaining and pressing plate 25, and a pressurizing assembly for increasing pressure is arranged on the periphery of the maintaining and pressing space along the circumference of the maintaining and pressing space.
And a heat exchange pipe with a hole for connecting a geothermal exploitation water inlet pipe is arranged in the dry hot rock 23.
Hot water after passing through the photovoltaic heating device enters the geothermal heating simulation test device through the geothermal exploitation water inlet pipeline 20, dry hot rocks 23 are fractured in advance to generate cracks inside the dry hot rocks, then the dry hot rocks are placed into a dimensional pressure space formed by annular dimensional pressure plates 25, the geothermal exploitation water inlet pipeline 20 is welded on a geothermal simulation exploitation sealing end cover 21, and the geothermal simulation exploitation sealing end covers 21 are positioned at two ends of the dry hot rocks 23 and aligned through sealing rings 24 to carry out end face and annular sealing. Thereby 4 parcel to hot dry rock 23 of realization are maintained to annular dimension clamp plate 25 circumferencial direction equipartition, and every annular dimension clamp plate 25 all inserts and has had a plurality of heating resistor 22, and the heat that heating resistor produced heats hot dry rock 23 through the heat-conduction of annular dimension clamp plate 25, and afterburning dimension clamp plate 26 is located annular dimension clamp plate 25 all around to carry out afterburning to annular dimension clamp plate 25 through double-screw bolt 27 and supporting nut.
Preferably, the pressurizing assembly comprises force application maintaining pressure plates 26 respectively arranged on the periphery of the maintaining pressure space, and fastening adjustment is realized between the force application maintaining pressure plates 26 which are arranged in parallel and oppositely through a stud 27 and nuts at two end parts of the stud 27.
The whole geothermal simulation heating device is placed on a geothermal simulation exploitation test table board 19, hot water heated by photovoltaic enters the geothermal exploitation simulation test device and carries out secondary heat exchange in an annular gap in the middle of the hot dry rock 23, and the water after the secondary heat exchange finally enters a heat exchanger 28 to transfer heat; the pressurizing assembly can effectively enhance the stress application to each annular maintaining plate 25, simultaneously ensure the sealing effect and realize better heat exchange of hot water in the cracks of the hot dry rock.
Preferably, the heat exchange device is a heat exchanger 28, a hot water inlet end of the heat exchanger 28 is communicated with a water outlet pipe opening of the geothermal simulation mining sealing end cover 21 on the geothermal simulation mining test device through a pipeline, and a water outlet end of the heat exchanger 28 is communicated with the inside of the water tower 1 of the water storage device.
The test device is mainly a set of device for exploring the possibility scheme of photovoltaic and geothermal simulation combined exploitation, and the special structural design is adopted to ensure that the heat exchange ratio and efficiency of photovoltaic and geothermal in the whole device are higher; the heat exchange efficiency is good; the adjustable photovoltaic heating device and the geothermal simulation mining test device which are arranged in the device can realize the photovoltaic heating of water and the multiple heating and heat exchange of geothermal heating combination, thereby improving the heat exchange efficiency; the adjustable photovoltaic heating device is internally and externally provided with the photovoltaic heating assembly with double rings, so that the photovoltaic heating tower can be efficiently heated; the adjustable structural design of the photovoltaic heating assembly is convenient for better searching for the optimal reflection angle, and meanwhile, the adopted lifting adjusting mechanism can realize position adjustment of the photovoltaic heating tower, and double adjustment can realize the optimal heating position and high-efficiency heating efficiency; providing basis for subsequent actual design and construction.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; the modifications or the substitutions do not cause the essence of the corresponding technical solutions to depart from the scope of the technical solutions of the embodiments of the present invention, and the technical solutions are all covered in the scope of the claims and the specification of the present invention; it will be apparent to those skilled in the art that any alternative modifications or variations to the embodiments of the present invention may be made within the scope of the present invention.
The present invention is not described in detail, but is known to those skilled in the art.

Claims (9)

1. Photovoltaic geothermol power jointly exploits analogue test device, its characterized in that: the system comprises a water storage device, an adjustable photovoltaic heating device, a geothermal simulation mining test device and a heat exchange device which are sequentially connected; the adjustable photovoltaic heating device is used for receiving water from the upstream of the adjustable photovoltaic heating device and heating the water, the geothermal simulation exploitation test device is used for receiving hot water heated by the upstream adjustable photovoltaic heating device and utilizing the hot water to complete a heat exchange test, the hot water flowing out of the geothermal simulation exploitation test device is used for exchanging heat of the downstream heat exchange device, and the heat exchange device returns the water after heat exchange to the water storage device through a pipeline for cyclic utilization.
2. The photovoltaic geothermal combined mining simulation test device according to claim 1, wherein: the water storage device comprises a water tower (1) with a large amount of cold water stored inside, the water tower (1) is connected with a water pump (3) through a water conveying pipeline (2), the water conveying pipeline (2) is connected with a water coil pipe water inlet pipeline (4) and a straight water inlet pipeline (5) through a tee at the outlet of the water pump (3), and the water tower (1) is communicated with a receiving part on the adjustable photovoltaic heating device through the water coil pipe water inlet pipeline (4) and the straight water inlet pipeline (5) respectively.
3. The photovoltaic geothermal combined mining simulation test device according to claim 2, wherein: photovoltaic heating device with adjustable includes a photovoltaic test table board (14), the supporting legs is installed to photovoltaic test table board (14) below and is carried out fixed stay, installs the photovoltaic heating subassembly that a plurality of is adjustable at the annular outer lane of the photovoltaic test table board (14) of fixed setting and rather than the equal interval in annular inner circle top of coaxial setting, installs a photovoltaic heating tower (6) at the central point of photovoltaic test table board (14), a lift adjustment mechanism who is used for driving it to realize going up and down is installed to the lower part of photovoltaic heating tower, photovoltaic heating subassembly is used for realizing the heating to the inside water of photovoltaic heating tower.
4. The photovoltaic geothermal combined mining simulation test device according to claim 3, wherein: the photovoltaic heating assembly comprises a sunlight reflecting plate (9) for reflecting sunlight to the upper portion of a photovoltaic heating tower (6), a reflecting plate fixing seat (10) fixed on a photovoltaic test table board (14) through screws is installed below the sunlight reflecting plate (9), an angle adjusting motor (11) is horizontally installed in a groove in the middle of the reflecting plate fixing seat (10) through screws, a driven belt wheel (13) is connected with a motor shaft of the angle adjusting motor (11) through a driving belt (12), and the back of the lower portion of the sunlight reflecting plate (9) is matched with a driven shaft on the driven belt wheel (13) through a shaft hole to be connected and fixed.
5. The photovoltaic geothermal combined mining simulation test device according to claim 3, wherein: the lifting adjusting mechanism comprises a lifting disc (18) which is movably arranged in a central hole of the photovoltaic test table board (14) and is coaxially arranged with the photovoltaic test table board, the upper end of the lifting disc (18) is fixedly connected with the photovoltaic heating tower (6) through a heat insulating material at the bottom of the lifting disc, a lifting motor fixing plate (15) which is fixedly welded at the bottom of the photovoltaic test table board (14) is coaxially arranged on the outer side of the lifting disc (18), a lifting motor (16) is fixedly connected below the central line of the lifting motor fixing plate (15), the upper end of the lifting motor (16) penetrates into the lifting motor fixing plate (15) and is screwed in a threaded hole of the lifting disc (18) through a screw rod matched with a screw rod fixedly connected with a motor shaft of the lifting motor, a guide rod (17) is movably inserted in a plurality of through holes on the periphery of the lifting disc (18), and the upper end and the lower end of each guide rod (17) are respectively connected with the photovoltaic test table board (14) through, The fixed plate (15) of the lifting motor realizes the fixed connection.
6. The photovoltaic geothermal combined mining simulation test device according to claim 5, wherein: the photovoltaic heating tower (6) comprises a photovoltaic heating tower shell, a heating coil (7) is installed in an annular space of an inner outer ring of the photovoltaic heating tower shell, the heating coil (7) is spirally arranged from top to bottom along a central shaft of the photovoltaic heating tower (6), a water inlet end at the lower end of the heating coil (7) is connected with a water coil water inlet pipeline (4), an outlet end at the upper end of the heating coil (7) is communicated with another water coil water inlet pipeline (4), a coil steam-water separator (8) is connected to the outlet end of the water coil water inlet pipeline (4), the coil steam-water separator (8) is used for respectively leading steam in a coil steam-water mixture generated in the water coil water inlet pipeline (4) into a steam outlet at the top of a central through heating cavity of the photovoltaic heating tower (6), and collecting hot water into a total hot water outlet pipeline connected with a geothermal simulation mining test device, the solar water heater is characterized in that the lower portion of a direct heating cavity in the center of the tower shell of the photovoltaic heating tower is communicated with a direct water inlet pipeline (5) to realize reheating, and water vapor generated by the photovoltaic heating tower (6) enters an external steam generator through a pipeline to generate electricity.
7. The photovoltaic geothermal combined mining simulation test device according to claim 1, wherein: the geothermal simulated exploitation test device comprises a geothermal simulated exploitation test table board (19), wherein a pressure maintaining space which is formed by a plurality of annular pressure maintaining plates (25) with arc-shaped sections and used for placing hot dry rocks (23) is arranged above the geothermal simulated exploitation test table board (19), geothermal simulated exploitation sealing end covers (21) are respectively and symmetrically arranged at two ends of the hot dry rocks (23), the geothermal simulated exploitation sealing end covers (21) are fixedly connected with the end parts of the hot dry rocks (23) at corresponding positions and aligned through sealing rings (24) and sealed end faces and in an annular shape, the annular pressure maintaining plates (25) are 4 pieces uniformly distributed in the circumferential direction to wrap the hot dry rocks (23), a plurality of heating resistors (22) are inserted into each annular pressure maintaining plate (25), and the heat generated by the heating resistors (23) heats the hot dry rocks (23) through the heat conduction of the annular pressure maintaining plates (25), a pressurizing assembly for increasing pressure is arranged on the periphery of the pressure maintaining space along the circumference of the pressure maintaining space.
8. The photovoltaic geothermal combined mining simulation test device according to claim 7, wherein: the pressurizing assembly comprises force application maintaining pressure plates (26) which are respectively arranged on the periphery of the pressure maintaining space, and the force application maintaining pressure plates (26) which are parallel and oppositely arranged realize fastening adjustment through a stud (27) and nuts at two end parts of the stud (27).
9. The photovoltaic geothermal combined mining simulation test device according to claim 1, wherein: the heat exchange device is a heat exchanger 28, a hot water inlet end of the heat exchanger 28 is communicated with a water outlet pipe opening of a geothermal simulation exploitation sealing end cover (21) on the geothermal simulation exploitation testing device through a pipeline, and a water outlet end of the heat exchanger 28 is communicated with the inside of a water tower (1) of the water storage device.
CN201910941610.4A 2019-09-30 2019-09-30 Photovoltaic and geothermal combined mining simulation test device Active CN110630456B (en)

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