CN112648155A - Heat engine power generation device with combined action of solar energy and terrestrial heat - Google Patents
Heat engine power generation device with combined action of solar energy and terrestrial heat Download PDFInfo
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- CN112648155A CN112648155A CN202011570923.2A CN202011570923A CN112648155A CN 112648155 A CN112648155 A CN 112648155A CN 202011570923 A CN202011570923 A CN 202011570923A CN 112648155 A CN112648155 A CN 112648155A
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- geothermal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G6/00—Devices for producing mechanical power from solar energy
- F03G6/003—Devices for producing mechanical power from solar energy having a Rankine cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
- F01D15/10—Adaptations for driving, or combinations with, electric generators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/02—Blade-carrying members, e.g. rotors
- F01D5/023—Blade-carrying members, e.g. rotors of the screw type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
- F03G7/04—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using pressure differences or thermal differences occurring in nature
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The invention discloses a heat engine power generation device with combined action of solar energy and terrestrial heat, which comprises a power generator, a main shaft, power generation rotors, a solar power generation assembly and a terrestrial heat power generation assembly, wherein the end part of the main shaft is connected with the power generator, the main shaft is provided with two power generation rotors, the two power generation rotors are respectively connected into the solar power generation assembly and the terrestrial heat power generation assembly, and the power generation rotors are connected with the main shaft through overrunning clutches. The power generation rotor comprises a rotor and a rotor shell, two ends of the rotor shell are respectively connected with a working medium circulation pipeline of the solar power generation assembly or the geothermal power generation assembly, and the rotor is positioned in the rotor shell and is directly rotated by being pushed by a working medium. The rotor is a plurality of blade rotors that set gradually along the main shaft axial, and blade rotor external diameter equals rotor shell internal diameter or is the form of screw rotor, and screw rotor's major diameter equals rotor shell internal diameter.
Description
Technical Field
The invention relates to the field of heat engine power generation, in particular to a heat engine power generation device with combined action of solar energy and terrestrial heat.
Background
The heat engine power generation is a common low-power independent power generation device in remote areas and is used in a position where a power grid is not laid well.
Solar energy is a common high-temperature heat source of a heat engine, but is unstable, cannot be used for generating electricity at night, and only can store the generated electric energy in the daytime and save the use.
In the hybrid heat engine device, cn201110161363.x discloses a heat engine which is relatively small and can be satisfactorily used, but in the conventional heat engine and cn201110161363.x, the heat engine often uses a stroke type piston crank rotor similar to a gasoline engine, a single working cycle of such a structure is long, so that the working efficiency is limited, and in the cn201110161363.x, cooling water needs to be added into the outside as a second heat source (cold source) of the heat engine, and the used cooling water cannot be reused, so that the use condition of the heat engine is harsh, and the heat engine needs to be used in occasions where a large amount of natural water resources exist, such as near rivers, except solar energy, the second energy of the hybrid energy is often a fuel heat source and needs to be periodically supplemented, and belongs to a non-renewable resource, so that the use of the heat engine is still limited by many conditions.
Disclosure of Invention
The invention aims to provide a heat engine power generation device with combined action of solar energy and terrestrial heat, and aims to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a heat engine power generation facility of solar energy and geothermol power combined action, includes generator, main shaft, electricity generation rotor, solar energy power generation subassembly and geothermal power generation subassembly, and the generator is connected to the main shaft end connection, sets up two electricity generation rotors on the main shaft, and two electricity generation rotors are connected respectively in solar energy power generation subassembly and geothermal power generation subassembly, and the connection of electricity generation rotor and main shaft is connected through freewheel clutch. The power generation rotor comprises a rotor and a rotor shell, two ends of the rotor shell are respectively connected with a working medium circulation pipeline of the solar power generation assembly or the geothermal power generation assembly, and the rotor is positioned in the rotor shell and is directly rotated by being pushed by a working medium.
Solar energy and terrestrial heat are used for generating electricity, time staggering is compensated for each other, the solar energy is used for generating electricity in daytime, the terrestrial heat is used for generating electricity at night with large temperature difference, heat exchange energy is fully utilized as a heat source of a heat engine, the power generation rotor is directly connected with the two power generation components, conversion such as crank connecting rod type conversion is not needed, working media of the power generation components are used for directly driving the rotors to rotate, the process is efficient, the main shaft only obtains energy from the power generation rotors and does not give energy, namely, the transmission direction of force is unidirectional, therefore, the two power generation rotors and the main shaft are driven by the overrunning clutch, when the solar power generation components generate electricity and drive the power generation rotors connected with the solar power generation components to rotate in daytime, the power generation rotors connected with the terrestrial heat power generation components hardly obtain energy from the terrestrial heat power generation components and rotate, at the moment, the speed of the main shaft is very small, and the main shaft does not transmit rotating torque to the main shaft any more, or the main shaft can be designed to be an ultra-low rated rotating speed, the speed of the main shaft is matched with the speed required by the generator by using the gear set, at the moment, even if the rotating speeds of the two generating rotors are low, energy can be transmitted to the main shaft, at the moment, the main acting rotor is low in speed and possibly low in acting efficiency, and the gear box at one end of the main shaft possibly has power loss, so that the low designed rotating speed of the main shaft is used under the condition that the difference between the solar power and the geothermal power generation power.
Furthermore, the rotor is a plurality of blade rotors which are sequentially arranged along the axial direction of the main shaft, and the outer diameter of each blade rotor is equal to the inner diameter of the rotor shell.
The blade rotor of a plurality of blades sets up the mode, can obtain the energy from the gaseous medium that flows through, intercepts the velocity of flow energy of gaseous working medium and is used for generating electricity, and the external diameter of blade rotor is direct next to rotor shell inner wall, prevents that a small amount of gaseous working medium from directly flowing away and do not do work from the edge.
Furthermore, the solar power generation assembly comprises a liquid storage tank, an intermediate tank, a gasification well and a buffer tank, wherein the liquid storage tank, the intermediate tank, the gasification well and the buffer tank are sequentially connected through a pipeline, the top of the liquid storage tank is also connected to the bottom side of the rotor shell through a pipeline, the buffer tank is also connected to the top side of the rotor shell through a pipeline, the intermediate tank and the liquid storage tank and the gasification well are respectively provided with an automatic on-off valve which is opened and closed alternately, the pipeline connected with the intermediate tank and the liquid storage tank is higher than the pipeline connected with the gasification well, the height difference enables condensate to flow naturally, the liquid storage tank is buried in soil, the gasification well comprises a shaft, a heating rod and a solar panel, the shaft wall of the shaft is respectively connected with the intermediate tank and the buffer tank, the solar panel is arranged on the earth surface and faces the direction of the solar noon sun, one end of the heating rod is connected, the liquid storage tank, the intermediate tank, the gasification well, the buffer tank and the rotor shell connected with the solar power generation assembly form a closed flow loop, and liquid with normal pressure boiling point higher than thirty-five ℃ is filled in the loop to serve as working medium of the solar power generation assembly.
The first heat source of the heat engine of the solar power generation assembly is solar energy, the second heat source (cold source) is relative low-temperature soil, the working medium in the gasification well is heated by the solar energy to be gasified, so that the pressure and the volume are greatly increased and are transferred into the buffer tank, the gaseous high-pressure working medium in the buffer tank and the gasification well can only flow through the power generation rotor and lead to the low-pressure liquid region-liquid storage tank, the liquid storage tank is buried in the soil, so the temperature is the soil temperature and is not very high and is greatly lower than the working medium heated by the solar energy, when the working medium is in the liquid storage tank, the working medium is condensed into liquid by cooling, so the low-pressure state is caused in the low-pressure liquid storage tank, the gas flows through the power generation rotor at high speed to push the power generation rotor to rotate, and generate power directly, because the liquid storage tank and the gasification well have larger pressure difference, so the gasification well, otherwise, the condensate cannot flow through spontaneously, the invention sets an intermediate tank between the two, the intermediate tank is connected with the two respectively, and sets alternatively on-off valves at two ends, thereby the condensate is used as an intermediate region to reach the gasification well, the working medium in the closed loop should select a solution with a proper boiling point, so that the condensate is liquid at the soil temperature, and can be gasified quickly after being heated by solar energy.
Furthermore, a plurality of heat exchange fins are arranged on the outer surface of the liquid storage tank and are in contact with soil, and the working medium of the solar power generation assembly is pentane.
The apparent heat transfer fin of liquid reserve tank makes the temperature of liquid reserve tank fully reduce for soil temperature and become a temperature whole, and the standard pressure boiling point of pentane is thirty six degrees centigrade, and soil temperature generally is less than this temperature, and in case break away from the liquid reserve tank after, the pentane of low boiling can gasify fast and occupy space volume, and it is rotatory to promote the electricity generation rotor.
Furthermore, the intermediate tank, the gasification well, the buffer tank and the outer surface connected with the intermediate tank, the gasification well and the buffer tank are coated with heat-insulating layers. On the pipeline from the gasification well to the power generation rotor, the working medium is required to be in a high-pressure gas state, so that the heat-insulating layer is used for wrapping, and the solar energy is fully reserved to the power generation stage.
Furthermore, the geothermal power generation assembly comprises an air cooling coil, a liquid storage tank, a middle cylinder and a geothermal cylinder, the air cooling coil, the liquid storage tank, the middle cylinder and the geothermal cylinder are sequentially connected through a pipeline, the other end of the air cooling coil is also connected with the bottom side surface of the rotor shell, the top of the geothermal cylinder is also connected with the top side surface of the rotor shell, the pipelines of the middle cylinder, the liquid storage tank and the geothermal cylinder are respectively provided with an automatic on-off valve which is opened and closed alternately, and the position of the middle cylinder, which is connected with the liquid storage tank, is higher than the position of the middle cylinder, which is connected; the geothermal barrel is buried in soil, the air cooling coil, the liquid storage tank, the middle barrel and the geothermal barrel are connected with a rotor shell connected with the geothermal power generation assembly to form a closed flow loop, and liquid with a normal-pressure boiling point between the average temperature at night in local winter and the average temperature of geothermal power is filled in the loop and used as working medium of the geothermal power generation assembly.
Furthermore, the first heat source of the heat engine of the geothermal power generation assembly is relative high-temperature soil, the second heat source (cold source) is low-temperature air, the working medium flows into the geothermal cylinder after being condensed and is heated by the soil temperature and then gasified, and flows through the power generation rotor and then leads to the low-temperature air cooling coil pipe.
The pipeline extending out of the soil behind the geothermal cylinder and the outer surface of the rotor shell connected with the geothermal power generation assembly are coated with an insulating layer. Similar to the arrangement of a heat insulation layer of the solar power generation assembly, the temperature energy of the high-pressure gas working medium is preserved, and the working capacity is prevented from being influenced by too early temperature reduction.
As another further embodiment, the rotor may also be a helical rotor having a major diameter equal to the inner diameter of the rotor shell.
The spiral rotor can more thoroughly change the velocity energy of flowing gas into the rotational energy of rotor in comparison with the blade rotor, the inclined plane of spiral rotor all can be regarded as one section blade that inclines, when gas from the top down passes through the rotor, because subsequent pressure reduces, so, gas can have the pressure of a perpendicular to inclined plane to the windward side, this pressure decomposes into the axial of main shaft and helical blade's tangential, tangential force drive rotor is rotatory, this principle process is the reversal use of screw feeder, all blade surfaces of helical blade obtain rotational energy from the gas flow process from the top down, thereby rotate the electricity generation, thereby obtain the blade rotor that has more efficient rotatory efficiency than axial flow fan blade formula.
Further, the electricity generation rotor still includes spin pipe and spin, the spin pipe sets up on the rotor housing lateral wall, the spin pipe is oval, the spin pipe penetrates and offers the straight flute on one section lateral wall that is close to the main shaft of rotor housing, helical blade is located the straight flute at the ascending projection of axial, helical blade spiral flute shape is convex, the spin intussuseption is filled with the spin, the inside diameter of pipe of spin pipe equals spin diameter, spin diameter equals helical blade spiral flute circular arc diameter, the spin exposes outside and imbeds helical blade spiral flute internal gearing towards helical blade in the straight flute department.
In order to highlight the pressure perpendicular to the vane surface, the invention separates the spiral channel to make it not continuous, the gas is in single lead, single lead exists in the spiral rotor groove, fully obtains the pressure potential energy from the gas, the gas can axially flow at the speed matched with the rotor, when existing in the spiral groove, because of the up-down pressure difference, the spiral rotor is driven to rotate, and when the speed of the spiral rotor is low or zero, the gas flow is nearly stopped, so that no pressure loss exists.
Compared with the prior art, the invention has the beneficial effects that: the solar energy generating set can generate electricity within a longer time range through the combined arrangement of the double generating assemblies, and fully meets the power use in remote areas; when the power generation rotor flows through the power generation rotor, the geothermal power generation assembly is pushed to rotate to do work to generate power; the electricity generation rotor structure of screw rotor to use the spin to separate screw rotor's thread groove for individual pitch length, when making gas flow through the rotor, can only flow through with screw rotor assorted speed, can not carry out the natural flow along the thread groove, thereby let gas pressure differential around screw rotor fully convert the rotatory energy of rotor into, do work the high efficiency.
Drawings
In order that the present invention may be more readily and clearly understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
FIG. 1 is a schematic diagram of the principles of the present invention;
FIG. 2 is a schematic view of the construction of the power generating rotor of the present invention as a bladed rotor;
FIG. 3 is a schematic view of the structure of the power generating rotor of the present invention when it is a helical rotor;
FIG. 4 is a schematic view of a power generating rotor with a roll tube and a roll according to the present invention;
FIG. 5 is a schematic view of a solar power module according to the present invention;
FIG. 6 is a schematic view of a geothermal power generation assembly according to the present invention;
fig. 7 is an enlarged schematic view of a screw rotor and a ball according to the present invention.
In the figure: 1-generator, 2-main shaft, 3-generating rotor, 31-spiral rotor, 32-rotor shell, 33-rolling ball tube, 34-rolling ball, 37-blade rotor, 4-solar generating component, 41-liquid storage tank, 42-intermediate tank, 43-gasification well, 431-shaft, 432-heating rod, 433-solar panel, 44-buffer tank, 5-geothermal generating component, 51-air cooling coil, 52-liquid storage tank, 53-intermediate cylinder, 54-geothermal cylinder and 9-insulating layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
as shown in figure 1, the thermal engine power generation device with combined action of solar energy and terrestrial heat comprises a power generator 1, a main shaft 2, power generation rotors 3, a solar power generation assembly 4 and a terrestrial heat power generation assembly 5, wherein the end part of the main shaft 2 is connected with the power generator 1, the main shaft 2 is provided with the two power generation rotors 3, the two power generation rotors 3 are respectively connected into the solar power generation assembly 4 and the terrestrial heat power generation assembly 5, and the power generation rotors 3 are connected with the main shaft 2 through overrunning clutches. As shown in fig. 2 and 3, the power generation rotor 3 includes a rotor and a rotor shell 32, two ends of the rotor shell 32 are respectively connected to the working medium circulation pipelines of the solar power generation assembly 4 or the geothermal power generation assembly 5, and the rotor is located in the rotor shell 32 and is directly rotated by the driving of the working medium.
Solar energy and terrestrial heat are used for generating electricity, time staggering is compensated for each other, the solar energy is used for generating electricity in the daytime, the terrestrial heat is used for generating electricity at night with large temperature difference, therefore, heat exchange energy is fully utilized as a heat source of a heat engine, the power generation rotor 3 is directly connected with the two power generation components, conversion such as a crank connecting rod type is not needed, working media of the power generation components are used for directly driving the rotors to rotate, the process is efficient, the main shaft 2 only obtains energy from the power generation rotor 3 and does not give energy, namely, the transmission direction of force is unidirectional, therefore, the two power generation rotors 3 and the main shaft 2 are driven by an overrunning clutch, when the solar power generation component 4 generates electricity and drives the power generation rotor 3 connected with the solar power generation component 4 to rotate, the power generation rotor 3 connected with the terrestrial heat power generation component 5 hardly obtains energy from the terrestrial heat power generation component 5 and rotates, at this moment, the speed of the main shaft is very small, and the main shaft 2 is not used for transmitting the rotation torque to the main shaft 2 any more, or the main shaft 2 can be designed to be an ultra-low rated rotation speed, the speed of the main shaft 2 is matched with the speed required by the generator 1 by using a gear set, at this moment, even if the rotation speeds of the two generating rotors are low, the energy can be transmitted to the main shaft 2, however, at this moment, the main acting rotor is low in speed, the acting efficiency is not high, and the gear box at one end of the main shaft 2 possibly has power loss, so the low designed rotation speed of the main shaft is used under the condition that the difference between the.
As shown in fig. 2, the rotor is a plurality of vane rotors 37 sequentially arranged along the axial direction of the main shaft 2, and the outer diameter of the vane rotor 37 is equal to the inner diameter of the rotor shell 32.
The blade rotor 37 with a plurality of blades is arranged in a way that energy can be obtained from a flowing gas medium, the flow velocity energy of the gas working medium is intercepted for power generation, the outer diameter of the blade rotor 37 is directly close to the inner wall of the rotor shell 32, and a small amount of gas working medium is prevented from directly flowing away from the edge without doing work.
As shown in fig. 5, the solar power generation assembly 4 comprises a liquid storage tank 41, an intermediate tank 42, a gasification well 43 and a buffer tank 44, the liquid storage tank 41, the intermediate tank 42, the gasification well 43 and the buffer tank 44 are sequentially connected through pipelines, the top of the liquid storage tank 41 is also connected to the bottom side of the rotor shell 32 through a pipeline, the buffer tank 44 is also connected to the top side of the rotor shell 32 through a pipeline, the intermediate tank 42 is respectively provided with automatic on-off valves which are opened and closed alternately with the pipelines of the liquid storage tank 41 and the gasification well 43, the pipeline of the intermediate tank 42 connected with the liquid storage tank 41 is higher than the pipeline connected with the gasification well 43, the height difference enables the condensate to flow naturally, the liquid storage tank 41 is buried in the soil, the gasification well 43 comprises a shaft 431, a heating rod 432 and a solar panel 433, the cylinder wall of the shaft 431 is respectively connected with the intermediate tank 42 and the buffer tank 44, the solar panel 433, the back of a solar panel 433 is connected with one end of a heating rod 432, the other end of the heating rod 432 extends into a shaft 431 and reaches the bottom of the shaft 431, a liquid storage tank 41, an intermediate tank 42, a gasification well 43, a buffer tank 44 and a rotor shell 32 connected with a solar power generation assembly 4 form a closed flow loop, and liquid with normal pressure boiling point higher than thirty-five ℃ is filled in the loop to serve as working medium of the solar power generation assembly 4.
The first heat source of the heat engine of the solar power generation assembly 4 is solar energy, the second heat source (cold source) is relative low-temperature soil, the working medium in the gasification well 43 is heated and gasified by the solar energy, so that the pressure and the volume are increased sharply and transmitted into the buffer tank 44, the gaseous high-pressure working medium in the buffer tank 44 and the gasification well 43 can only flow through the power generation rotor 3 and lead to the liquid storage tank 41 which is a low-pressure liquid region, the liquid storage tank 41 is buried in the soil, so the temperature is the soil temperature and is not very high and is greatly lower than the working medium heated by the solar energy, when the working medium is in the liquid storage tank 41, the working medium is cooled and condensed into liquid, so that the low-pressure state is caused in the liquid storage tank 41, the pressure difference between the low-pressure liquid storage tank 41 and the high-pressure buffer tank 44 is provided, so that the gas flows through the power generation rotor 3 at high speed to push the rotation of the power generation, and, therefore, the condensed liquid cannot be directly connected with the gasification well 43, otherwise, the condensed liquid cannot flow through the gasification well, the intermediate tank 42 is arranged between the two, the intermediate tank 42 is respectively connected with the two, and the valves which are alternately switched on and off are arranged at the two ends of the intermediate tank, so that the condensed liquid can reach the gasification well 43 as an intermediate area, and the working medium in the closed loop should select a solution with a proper boiling point, so that the solution is in a liquid state at the soil temperature and can be quickly gasified after being heated by solar energy.
As shown in fig. 5, the outer surface of the liquid storage tank 41 is provided with a plurality of heat exchange fins contacting with soil, and the working medium of the solar power generation assembly 4 is pentane.
The apparent heat transfer fin of liquid storage tank 41 makes the temperature of liquid storage tank 41 fully reduce for soil temperature and become a temperature whole, and the standard pressure boiling point of pentane is thirty six degrees centigrade, and soil temperature generally is less than this temperature, and in case break away from liquid storage tank 41 after, low boiling pentane can gasify fast and occupy space volume, promotes the electricity generation rotor rotation.
The intermediate tank 42, the gasification well 43 and the buffer tank 44 are coated with the insulating layer 9. On the pipeline from the gasification well 43 to the power generation rotor 3, the working medium is required to be in a high-pressure gas state, so that the heat-insulating layer 9 is used for wrapping, and the solar energy is fully reserved to the power generation stage.
As shown in fig. 6, the geothermal power generation assembly 5 includes an air cooling coil 51, a liquid storage tank 52, an intermediate cylinder 53, and a geothermal cylinder 54, the air cooling coil 51, the liquid storage tank 52, the intermediate cylinder 53, and the geothermal cylinder 54 are sequentially connected by a pipe, the other end of the air cooling coil 51 is further connected to the bottom side of the rotor shell 32, the top of the geothermal cylinder 54 is further connected to the top side of the rotor shell 32, automatic on-off valves which are alternately opened and closed are respectively disposed on pipes connecting the intermediate cylinder 53 to the liquid storage tank 52 and the geothermal cylinder 54, and the position where the intermediate cylinder 53 is connected to the liquid storage tank 52 is higher than the position where it is connected to the geothermal cylinder 54; the geothermal cylinder 54 is buried in the soil, the air cooling coil 51, the liquid storage tank 52, the middle cylinder 53 and the geothermal cylinder 54 are connected with the rotor shell 32 connected with the geothermal power generation assembly 5 to form a closed flow loop, and the loop is filled with liquid with the normal-pressure boiling point between the average temperature at night in the local winter and the average temperature of the geothermal power generation assembly 5 as the working medium of the geothermal power generation assembly 5.
The first heat source of the heat engine of the geothermal power generation assembly 5 is relative high-temperature soil, the second heat source (cold source) is low-temperature air, the working medium flows into the geothermal barrel 54 after being condensed and is heated by the soil temperature and then gasified, and after flowing through the power generation rotor 3, the working medium leads to the low-temperature air cooling coil 51.
The pipeline extending out of the soil behind the geothermal cylinder 54 and the rotor shell 32 connected with the geothermal power generation assembly 5 are coated with an insulating layer 9. Similar to the arrangement of the heat insulation layer of the solar power generation assembly 4, the temperature energy of the high-pressure gas working medium is preserved, and the working capacity is prevented from being influenced by too early temperature reduction.
The main operation process of the device is as follows: when solar energy is sufficient, the solar power generation assembly 4 is used as a main acting part, the solar energy heats working media, and the high-pressure gas working media have larger pressure difference in front of and behind the power generation rotor 3, so that when flowing through the power generation rotor 3, the power generation rotor is pushed to rotate, and the energy is transmitted to the main shaft 2 for subsequent power generation; when the power generation rotor flows through the power generation rotor, the geothermal power generation assembly 5 is used as a main acting component, geothermal heating working medium is used for enabling the working medium to be in a high-pressure gas state, and the working medium has a larger pressure difference with liquid low-temperature working medium passing through the air cooling coil 51, so that the working rotor is pushed to rotate to act to generate power.
Example two:
compared with the first embodiment, only the structural form of the power generation rotor 3 is different:
as shown in fig. 3, the rotor is a screw rotor 31, and the diameter of the screw rotor 31 is equal to the inner diameter of the rotor case 32.
Compared with the blade rotor 37, the spiral rotor 31 can more thoroughly convert the speed energy of flowing gas into the rotation energy of the rotor, the inclined plane of the spiral rotor 31 can be regarded as a section of inclined blade, when the gas passes through the rotor from top to bottom, due to the subsequent pressure reduction, the gas has a pressure perpendicular to the inclined plane on the windward side, the pressure is decomposed into the axial direction of the main shaft 2 and the tangential direction of the spiral blade, the tangential force drives the rotor to rotate, the principle process is the reverse use of the spiral feeder, all blade surfaces of the spiral blade obtain the rotation energy from the gas flowing process from top to bottom, and therefore the rotation power generation is carried out, and the more efficient rotation power transmission efficiency is obtained compared with the axial flow blade type blade rotor 37.
As shown in fig. 4, the power generation rotor 3 further includes a rolling ball pipe 33 and a rolling ball 34, the rolling ball pipe 33 is disposed on a side wall of the rotor housing 32, the rolling ball pipe 33 is oval, a straight groove is formed in a section of the rolling ball pipe 33 penetrating through the rotor housing 32, the side wall is close to the main shaft 2, a projection of the helical blade 31 in the axial direction is located in the straight groove, the helical groove of the helical blade 31 is arc-shaped, the rolling ball 34 is filled in the rolling ball pipe 33, the pipe inner diameter of the rolling ball pipe 33 is equal to the ball diameter of the rolling ball 34, the ball diameter of the rolling ball 34 is equal to the arc diameter of the helical groove of the helical blade 31, and the rolling ball 34 is exposed to the helical blade 31 at the straight.
In order to highlight the pressure perpendicular to the vane surface, as shown in fig. 4 and 7, the invention separates the spiral channel to make it not continuous, the gas is in single lead and single lead existing in the spiral groove of the spiral rotor 31, so that the pressure potential energy is fully obtained from the gas, the gas can only axially flow at the speed matched with the rotor, when existing in the spiral groove, because the spiral rotor is pushed to rotate by the pressure difference between the upper part and the lower part, the gas flow is nearly stopped when the speed of the spiral rotor is low or zero, and thus, no pressure loss exists.
The operation principle of the solar power generation module 4 and the geothermal power generation module 5 of the present embodiment is the same as that of the first embodiment.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (1)
1. A heat engine power generation device with combined action of solar energy and terrestrial heat is characterized in that: the heat engine power generation device comprises a power generator (1), a main shaft (2), power generation rotors (3), a solar power generation assembly (4) and a geothermal power generation assembly (5), wherein the end part of the main shaft (2) is connected with the power generator (1), the main shaft (2) is provided with the two power generation rotors (3), the two power generation rotors (3) are respectively connected into the solar power generation assembly (4) and the geothermal power generation assembly (5), and the power generation rotors (3) are connected with the main shaft (2) through overrunning clutches;
the power generation rotor (3) comprises a rotor and a rotor shell (32), two ends of the rotor shell (32) are respectively connected with a working medium circulation pipeline of the solar power generation assembly (4) or the geothermal power generation assembly (5), and the rotor is positioned in the rotor shell (32) and is directly rotated by being pushed by a working medium;
the rotor is a spiral rotor (31), and the major diameter of the spiral rotor (31) is equal to the inner diameter of a rotor shell (32);
the power generation rotor (3) further comprises a rolling ball pipe (33) and a rolling ball (34), the rolling ball pipe (33) is arranged on the side wall of the rotor shell (32), the rolling ball pipe (33) is in a waist circle shape, a straight groove is formed in one section, which penetrates through the rotor shell (32), of the side wall, close to the main shaft (2), of the rolling ball pipe (33), the projection of the spiral blade (31) in the axial direction is located in the straight groove, the spiral groove of the spiral blade (31) is in a circular arc shape, the rolling ball pipe (33) is filled with the rolling ball (34), the inner diameter of the pipe of the rolling ball pipe (33) is equal to the diameter of the rolling ball (34), the diameter of the rolling ball (34) is equal to the diameter of the circular arc of the spiral blade (31), and the rolling ball (34) is exposed outwards towards the spiral blade (31) at the straight groove and is embedded into the spiral groove of;
the solar power generation assembly (4) comprises a liquid storage tank (41), an intermediate tank (42), a gasification well (43) and a buffer tank (44), wherein the liquid storage tank (41), the intermediate tank (42), the gasification well (43) and the buffer tank (44) are sequentially connected through a pipeline, the top of the liquid storage tank (41) is further connected to the side face of the bottom of a rotor shell (32) through a pipeline, the buffer tank (44) is further connected to the side face of the top of the rotor shell (32) through a pipeline, the intermediate tank (42) is respectively provided with automatic on-off valves which are opened and closed alternately on the pipelines of the liquid storage tank (41) and the gasification well (43), the pipeline connected with the intermediate tank (42) and the liquid storage tank (41) is higher than the pipeline connected with the gasification well (43), the liquid storage tank (41) is buried in soil, the gasification well (43) comprises a shaft (431), a heating rod (432) and a solar panel (433), the wall of the shaft (431) is respectively connected with an intermediate tank (42) and a buffer tank (44), the solar panel (433) is arranged on the ground surface and faces the direction of the solar noon sun, one end of a heating rod (432) is connected to the back of the solar panel (433), the other end of the heating rod (432) extends into the shaft (431) and reaches the bottom of the shaft (431), the liquid storage tank (41), the intermediate tank (42), the gasification well (43), the buffer tank (44) and a rotor shell (32) connected with the solar power generation assembly (4) form a closed flow loop, and liquid with the normal pressure boiling point higher than thirty-five degrees centigrade is filled in the loop as a working medium of the solar power generation assembly (4);
a plurality of heat exchange fins are arranged on the outer surface of the liquid storage tank (41) and are in contact with soil, and the working medium of the solar power generation assembly (4) is pentane;
the geothermal power generation assembly (5) comprises an air cooling coil (51), a liquid storage tank (52), an intermediate cylinder (53) and a geothermal cylinder (54), wherein the air cooling coil (51), the liquid storage tank (52), the intermediate cylinder (53) and the geothermal cylinder (54) are sequentially connected through a pipeline, the other end of the air cooling coil (51) is also connected with the bottom side surface of the rotor shell (32), the top of the geothermal cylinder (54) is also connected with the top side surface of the rotor shell (32), pipelines connected with the liquid storage tank (52) and the geothermal cylinder (54) of the intermediate cylinder (53) are respectively provided with automatic on-off valves which are opened and closed alternately, and the position where the intermediate cylinder (53) is connected with the liquid storage tank (52) is higher than the position where the intermediate cylinder (53) is connected with the geothermal cylinder (54); the geothermal cylinder (54) is buried in soil, the air cooling coil (51), the liquid storage tank (52), the middle cylinder (53) and the geothermal cylinder (54) are connected with a rotor shell (32) connected with the geothermal power generation assembly (5) to form a closed flow loop, and liquid with a normal-pressure boiling point between the average temperature of the local winter at night and the average temperature of the geothermal power generation assembly (5) is filled in the loop to serve as working medium of the geothermal power generation assembly (5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011570923.2A CN112648155A (en) | 2020-03-17 | 2020-03-17 | Heat engine power generation device with combined action of solar energy and terrestrial heat |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011570923.2A CN112648155A (en) | 2020-03-17 | 2020-03-17 | Heat engine power generation device with combined action of solar energy and terrestrial heat |
| CN202010186194.4A CN111365202B (en) | 2020-03-17 | 2020-03-17 | Heat engine power generation device with combined action of solar energy and terrestrial heat |
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| CN202010186194.4A Division CN111365202B (en) | 2020-03-17 | 2020-03-17 | Heat engine power generation device with combined action of solar energy and terrestrial heat |
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| CN112648155A true CN112648155A (en) | 2021-04-13 |
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| CN202010186194.4A Active CN111365202B (en) | 2020-03-17 | 2020-03-17 | Heat engine power generation device with combined action of solar energy and terrestrial heat |
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| CN108087219A (en) * | 2017-12-14 | 2018-05-29 | 朱兰英 | A kind of simple power generator |
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- 2020-03-17 CN CN202011570923.2A patent/CN112648155A/en not_active Withdrawn
- 2020-03-17 CN CN202010186194.4A patent/CN111365202B/en active Active
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| WO2003078191A1 (en) * | 2002-03-14 | 2003-09-25 | The Sun Trust L.L.C. | Rankine cycle generation of electricity |
| CN101162014A (en) * | 2007-11-20 | 2008-04-16 | 刘昂峰 | Composite solar energy heat generating system |
| US20130327042A1 (en) * | 2009-02-20 | 2013-12-12 | American Thermal Power, Llc | Thermodynamic power generation system |
| CN102080635A (en) * | 2010-03-09 | 2011-06-01 | 上海海事大学 | Device for generating electricity by using solar energy and ground heat and using method thereof |
| US20140123644A1 (en) * | 2012-11-02 | 2014-05-08 | Korea Institute Of Energy Research | Heat-electricity combined production system that utilizes solar energy and geothermal heat |
Also Published As
| Publication number | Publication date |
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| CN111365202B (en) | 2021-02-09 |
| CN111365202A (en) | 2020-07-03 |
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Application publication date: 20210413 |