Thermal power system
Through the closed alternate cycle of the adiabatic work chamber and the thermal energy conversion device, the problem of improving thermal efficiency is solved, the efficient use of solar energy or other heat source energy is achieved, and the thermal energy loss is reduced, forming a new thermal power system.
Patent Information
- Application Number
- CN202421815328.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-07-29
AI Technical Summary
Among the existing thermal power technologies, improving thermal efficiency is still a difficult problem that needs to be solved urgently, especially in terms of solar energy utilization, which has a thermal efficiency of less than 30%, and it is difficult for the existing technology to efficiently utilize thermal energy and reduce thermal energy loss.
The closed alternate cycle of the adiabatic work chamber with a retractable space volume is adopted, and the external power parts are driven to reciprocate through the expansion and contraction of the adiabatic work chamber. The closed cyclic heat conversion is carried out using the own thermal kinetic energy of the work medium to perform the closed cyclic heat conversion, and does not dissipate heat to the outside, and continues to output power to the outside.
It realizes efficient use of solar energy or other heat source energy, greatly reduces heat energy loss, improves heat utilization efficiency, and forms a new thermal power system.
Smart Images
Figure CN223136205U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of thermal power, in particular to a thermal power system. Background Art
[0002] Converting thermal energy into kinetic energy and electric energy to realize energy utilization is a major energy utilization technology. From the earliest steam engine to the current fuel engines, generators, nuclear power, nuclear power, industrial waste heat power generation, solar energy utilization, etc., thermal power technology has been widely applied. However, the improvement of thermal efficiency is still an urgent problem to be solved. At the same time, in the aspect of the utilization of solar energy in the prior art, the thermal efficiency of photovoltaic power generation technology is still less than 30%. Therefore, the thermal power technology that can improve the conversion efficiency will further enhance the efficient utilization of energy, especially in scenarios such as office, production, and life in buildings, and can also better realize integrated power supply, heating, and cooling, as well as low-carbon energy-saving applications. Content of the Utility Model
[0003] The main purpose of the utility model is to provide a thermal power system, aiming to utilize the thermal power of the heat medium for closed alternating cycle thermal conversion, neither dissipating heat to the outside nor continuously outputting power to the outside, constituting a new type of thermal power system, greatly reducing heat energy loss in a simple way, improving the heat utilization efficiency, and realizing the efficient utilization of solar energy and other heat source energies.
[0004] To achieve the above purpose, the utility model proposes a thermal power system, including at least a pair of adiabatic work chambers with telescopic space volume and at least a pair of heat energy conversion devices. The pair of adiabatic work chambers correspond to at least a pair of heat energy conversion devices and are respectively communicated with the corresponding heat energy conversion devices. The adiabatic work chambers are also connected to an external power component. The pair of heat energy conversion devices alternately drive the corresponding adiabatic work chambers to do work and expand, and push another adiabatic work chamber to contract with equal volume, thereby driving the external power component to move in a cycle and do work externally.
[0005] A further technical solution of the utility model is that the thermal power system further includes a heat exchange dish. The heat energy conversion device includes a medium storage tank and a heating tank. The heating tank is located in the heat exchange dish. The medium storage tank is located outside the heat exchange dish and is adiabatic to the outside. A working medium is arranged in the medium storage tank. The medium storage tank is communicated with the heating tank through an adiabatic pipeline with a pipeline pump to control the pumping of the working medium into the heating tank for heating. The medium storage tank and the heating tank are also communicated through an adiabatic return pipeline to allow the heated working medium to flow back to the medium storage tank. The medium storage tank is communicated with the corresponding adiabatic work chamber through an adiabatic pipeline with a control opening and closing device.
[0006] A further technical solution of the utility model is that the control opening and closing device is a valve.
[0007] A further technical solution of the present utility model is that the adiabatic work chamber is a cylinder with a piston or a flexible, foldable and telescopic chamber wall.
[0008] A further technical solution of the present utility model is that the bottom surface of the adiabatic work chamber is fixed, and the top surface of the chamber can perform linear reciprocating motion. The top surfaces of the two adiabatic work chambers are connected to the external power component to drive the external power component to perform cyclic reciprocating motion and do work externally.
[0009] A further technical solution of the present utility model is that there is one external power component. The top surfaces of the pair of adiabatic work chambers face each other. The external power component is clamped between the top surfaces of the pair of adiabatic work chambers. The two stress surfaces of the external power component are respectively attached to the corresponding top surfaces of the adiabatic work chambers. The external power component is movably connected to an externally reciprocating transmission link to drive the external power system to continuously output power externally through the transmission link.
[0010] A further technical solution of the present utility model is that there are two external power components, which are respectively fixedly connected to the top surfaces of the two adiabatic work chambers. The pair of adiabatic work chambers are placed in parallel with the same orientation of the top surfaces. The external power component includes two transmission racks arranged in parallel with opposite tooth grooves. One end of each transmission rack is connected to the top surface of the corresponding adiabatic work chamber. A gear is clamped between the two transmission racks. The two transmission racks perform reverse linear reciprocating motion under the drive of the pair of adiabatic work chambers to drive the external power system to continuously rotate reciprocally and do work externally.
[0011] A further technical solution of the present utility model is that a rotation control ring is arranged on one of the two transmission racks. The rotation control ring is connected to a rotation link, and the rotation link can be connected to a generator or a compressor to convert heat energy into electric power output or to achieve refrigeration, or a combination thereof.
[0012] A further technical solution of the present utility model is that a number of capillary pipes are arranged in the heating tank; the heat exchange dish continuously absorbs the heat of the external heat source and transfers it to the heating tank to achieve heat energy exchange.
[0013] The beneficial effects of the thermal power system of the present utility model are:
[0014] Through the above technical solution, the utility model includes at least a pair of adiabatic work bins with retractable space volume and at least a pair of heat energy conversion devices. The pair of adiabatic work bins correspond to at least a pair of heat energy conversion devices and are respectively communicated with the corresponding heat energy conversion devices. The adiabatic work bin is also connected to an external power component. The pair of heat energy conversion devices alternately drive the corresponding adiabatic work bin to do work and expand, and push another adiabatic work bin to contract with equal volume, so as to do work externally. By using the self-thermal kinetic energy of the working medium, a closed-cycle thermal conversion is realized, without dissipating heat to the outside, continuously outputting power externally, constituting a thermal power system, greatly reducing the loss of heat energy to the outside in a simple way, greatly improving the heat utilization efficiency, and realizing the efficient utilization of solar energy or other heat source energies. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a schematic structural diagram of the thermal power system of the utility model;
[0016] Figure 2 is a schematic structural diagram of the external power component.
[0017] In order to make the purpose, technical solution and advantages of the utility model clearer, the following further details the utility model in conjunction with the drawings and embodiments. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0018] It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.
[0019] The utility model provides a thermal power system. The utility model is a thermal power system that realizes a closed-cycle thermal conversion by using the self-thermal kinetic energy of the working medium, does not dissipate heat to the outside, continuously outputs power externally, greatly reduces the loss of heat energy to the outside in a simple way, greatly improves the heat utilization rate, and realizes the efficient utilization of solar energy or other heat source energies.
[0020] Specifically, as Figure 1 shown, a preferred embodiment of the thermal power system of the utility model includes at least a pair of adiabatic work bins with retractable space volume and at least a pair of heat energy conversion devices. The structures of the pair of adiabatic work bins with retractable space volume are the same, and the structures of the pair of heat energy conversion devices are the same.
[0021] The pair of adiabatic work bins correspond to at least a pair of heat energy conversion devices and are respectively communicated with the corresponding heat energy conversion devices. The adiabatic work bin is also connected to an external power component. The pair of heat energy conversion devices alternately drive the corresponding adiabatic work bin to do work and expand, and push another adiabatic work bin to contract with equal volume, thereby driving the external power component to move in a cycle and do work externally.
[0022] Specifically, in this embodiment, the thermodynamic system further includes a heat exchange dish. The heat energy conversion device includes a medium storage tank and a heating tank. The heating tank is located inside the heat exchange dish, and the medium storage tank is located outside the heat exchange dish and is adiabatic to the outside. A working medium is provided in the medium storage tank. The medium storage tank and the heating tank are connected through an adiabatic pipeline with a pipeline pump to control the pumping of the working medium into the heating tank for heating. The medium storage tank and the heating tank are also connected through an adiabatic return pipeline to allow the heated working medium to flow back to the medium storage tank. The medium storage tank is connected to the corresponding adiabatic working chamber through an adiabatic pipeline with a control opening and closing device, and the control opening and closing device is preferably a valve.
[0023] When one of the medium storage tanks is in a high-temperature and high-pressure state, the adiabatic pipeline with the control opening and closing device is opened. The vaporized high-temperature and high-pressure working medium pushes the adiabatic working chamber connected to the medium storage tank to expand, outputs the thermal power to the external power component, and at the same time pushes the other adiabatic working chamber back to the contracted state, completing the process of converting heat energy into kinetic energy until the medium storage tank returns to the low-temperature and low-pressure state.
[0024] In this embodiment, the internal temperature range of the heat exchange dish is above 100 °C; in the initial state, each working medium is in the medium storage tank, at normal temperature and pressure, and the working medium is in a liquid state.
[0025] In this embodiment, the adiabatic working chamber can be a cylinder with a piston or a flexible and foldable telescopic chamber wall. The bottom surface of the adiabatic working chamber is fixed, and the top surface can perform linear reciprocating motion. The top surfaces of the two adiabatic working chambers are connected to the external power component to drive the external power component to perform cyclic reciprocating motion and do work externally.
[0026] As Figure 1 shown, there is one external power component. The top surfaces of the pair of adiabatic working chambers are placed facing each other, and the external power component is clamped between the top surfaces of the pair of adiabatic working chambers. The two stress surfaces of the external power component are respectively attached to the top surfaces of the corresponding adiabatic working chambers. The external power component is movably connected to the reciprocating external transmission connecting rod to drive the external power system to continuously output power externally through the transmission connecting rod.
[0027] As another implementation scheme, as Figure 2 shown, there are two external power components, which are respectively fixedly connected to the top surfaces of the two adiabatic working chambers. The pair of adiabatic working chambers are placed in parallel, and the top surfaces face the same direction. The external power component includes two parallel transmission racks with opposite tooth grooves. One end of each transmission rack is connected to the top surface of the corresponding adiabatic working chamber. A gear is clamped between the two transmission racks. The two transmission racks perform opposite linear reciprocating motions under the drive of the pair of adiabatic working chambers, driving the external power system to continuously rotate reciprocally and do work externally.
[0028] One of the two transmission racks is provided with a rotation control ring, which is connected to a rotation link. The rotation link can be connected to a generator or a compressor to convert thermal energy into electrical energy output or to achieve refrigeration, or to be used in combination.
[0029] In this embodiment, a number of capillary tubes are arranged in the heating tank. The heat exchange dish continuously absorbs the heat of the external heat source and transfers it to the heating tank to achieve heat energy exchange. The number of capillary tubes is used to increase the heat exchange contact surface to improve the heat conduction efficiency. Of course, in other embodiments, other structures and methods can also be used to improve the heat conduction efficiency, and the present utility model does not limit this.
[0030] In this embodiment, the heat exchange dish is connected to an external heat source, and the external heat source is, for example, a solar collector panel. The heat exchange dish continuously obtains heat energy supplement from the external heat source to maintain the high temperature state inside the heat exchange dish.
[0031] To increase the telescopic frequency of the adiabatic work chamber, in this embodiment, the two adiabatic work chambers can be connected to a plurality of pairs of heat energy conversion devices through the pipelines of the multi-channel belt pipeline opening and closing control device. The multiple storage media tanks connected to each adiabatic work chamber are heated in sequence and do work on the corresponding adiabatic work chamber. As an implementation scheme, in this embodiment, two pairs of heat energy conversion devices are used.
[0032] The structure and working principle of the thermal power system of the present utility model will be further elaborated below.
[0033] The thermal power system of the present utility model includes a pair of identical adiabatic work chambers with a telescopable space volume, a heat exchange dish that continuously obtains heat energy from an external heat source through the circulating flow of a liquid heat medium, and at least a pair of identical heat energy conversion devices.
[0034] The bottom surface of the adiabatic work chamber is fixed, and the top surface of the chamber can perform a linear reciprocating motion to drive an external power component to do work outward. The chamber space can correspondingly expand and contract its volume with the linear motion of the top surface of the chamber. Moreover, the top surfaces of the two work chambers are physically connected to the external power component so that the two work chambers can maintain equal and out-of-phase reciprocating expansion and contraction, driving the power component to achieve a cyclic reciprocating motion and do work externally.
[0035] The heat energy conversion device is composed of an interconnected heating tank and a storage medium tank. The storage medium tank is filled with a normal temperature liquid working medium. The heating tank is placed inside the heat exchange dish, and the storage medium tank is placed outside the heat exchange dish and insulated from the outside. A pipeline pump is provided in the adiabatic pipeline connecting the two to control the inflow of the working medium into the heating tank or its return to the storage medium tank; the storage medium tank is connected to the two adiabatic work chambers respectively through adiabatic pipelines with control opening and closing devices.
[0036] The method for the thermal power system of the present utility model to convert thermal energy into kinetic energy is as follows: The heat exchange dish continuously obtains heat energy supplement from an external heat source to maintain a high-temperature state inside the heat exchange dish; in the two paired thermal energy conversion devices, their respective working media are alternately pumped into their heating tanks and heated to the rated temperature, thereby forming a high-temperature and high-pressure state, and then flowing back to the storage medium tank. Then, the pipeline opening and closing control devices connecting to the working chambers are respectively opened, and the high-pressure working medium is used to alternately push the adiabatic working chamber in the contracted state that has been connected to do an expansion movement, and push the other adiabatic working chamber in the expanded state back to the contracted state. In this way, an alternating cycle is formed to drive the external power component connected to the top surface of the adiabatic working chamber to reciprocate and do work, continuously converting the thermal energy absorbed by each working medium into mechanical kinetic energy.
[0037] The external power component can be one, and is placed between the top surfaces of the two working chambers placed oppositely, and the two stress surfaces of the external power component are respectively attached to the top surfaces of the two working chambers; the external power component is movably connected to the reciprocating transmission connecting rod so that the connecting rod drives the external power device to continuously output power outward; the external power component can also be two, which are respectively fixedly connected to the top surfaces of the two adiabatic working chambers, and are transmission racks that are parallel to each other and have opposite racks, with a gear sandwiched in the middle. Through the opposite linear reciprocating movements of the two transmission racks, the external power system is driven to continuously rotate and do work outward.
[0038] A rotation control ring is arranged on one of the two transmission racks, and the rotation control ring is connected to a rotation connecting rod, and the rotation connecting rod can be connected to a generator or a compressor to realize converting thermal energy into electrical energy output or realize refrigeration, or a combined use.
[0039] The two adiabatic working chambers are both flexible and foldable telescopic chamber walls, and can also be other chamber bodies with a linearly telescopic space volume; the two adiabatic working chambers are respectively connected to the corresponding storage medium tanks through pipelines with opening and closing control devices. When one of the storage medium tanks is in a high-temperature and high-pressure state, the pipeline is opened, and the vaporized high-pressure working medium pushes the adiabatic working chamber to expand, outputs the thermal power to the external power component, and at the same time pushes the other working chamber in the opposite direction back to the contracted state. To increase the telescopic frequency of the adiabatic working chamber, in practical applications, the two adiabatic working chambers can be connected to multiple paired thermal energy conversion devices through multiple pipelines with pipeline opening and closing control devices, and the multiple storage coal tanks connected to each adiabatic working chamber are heated in sequence and do work on the adiabatic working chamber.
[0040] The heating tank contains numerous capillary pipes to increase the heat exchange contact surface to improve the heat conduction efficiency, and other structures and methods to improve the heat conduction efficiency are not excluded.
[0041] The following combines Figure 1 and Figure 2 , taking the thermal power system configured with two pairs of thermal conversion devices as an example, to elaborate in detail the working process of converting thermal energy into kinetic energy.
[0042] The heat exchange dish is maintained at a high temperature inside by an external heat source such as a solar collector, and the high temperature is set above 100; in the initial state, all working media of the thermodynamic system are in the storage medium tank, set to normal temperature and pressure, and the working medium is in a liquid state; the corresponding valves A, B, and D are closed, the working chamber A is in a compressed state, and the working chamber B is in a stretched state.
[0043] For the following processes, due to actual needs, without changing the working principle of the thermodynamic system, the order can be adjusted accordingly:
[0044] 1. Send the working medium A to the capillary heating tank in the heat exchange dish through a pipeline pump for heating;
[0045] 2. Send the working medium B to the capillary heating tank in the heat exchange dish through a pipeline pump for heating;
[0046] 3. After the temperature of the working medium A reaches the threshold, it flows back to the storage medium tank through a pipeline. At this time, the working medium A is in a high-temperature and high-pressure state;
[0047] 4. Send the working medium D to the capillary heating tank in the heat exchange dish through a pipeline pump for heating;
[0048] 5. After the temperature of the working medium B reaches the threshold, it flows back to the storage medium tank through a pipeline. At this time, the working medium B is in a high-temperature and high-pressure state;
[0049] 6. Open valve A. The adiabatic working chamber A is pushed to stretch by the high pressure of the vaporized working medium, pushing the power component, and at the same time compressing the adiabatic working chamber B into a compressed state; after the adiabatic working chamber A stretches, the thermal energy is converted into kinetic energy, the temperature of the working medium A decreases, and the air pressure in the thermal energy conversion device returns to the low-pressure state;
[0050] 7. After the temperature of the working medium D reaches the threshold, it flows back to the storage medium tank through a pipeline. At this time, the working medium D is in a high-temperature and high-pressure state;
[0051] 8. Close valve C, send the working medium C to the capillary heating tank in the heat exchange dish for heating, and when the temperature reaches the threshold, it flows back to the storage medium tank through a pipeline;
[0052] 9. Open valve B. At this time, the working chamber B is in a high-pressure state and the adiabatic working chamber A is in a low-pressure state. Then the adiabatic working chamber B is pushed to stretch and do work by the high pressure of the vaporized working medium B, pushing the power component in the reverse direction, and at the same time compressing the adiabatic working chamber A back to the compressed state;
[0053] 10. Close valve A, send the working medium A to the capillary heating tank in the heat exchange dish for heating, and when the temperature reaches the threshold, it flows back to the storage medium tank through a pipeline;
[0054] 11. Open valve D, and the working chamber A is pushed to stretch by the high pressure of the vaporized working medium D, thereby pushing the power component to do work;
[0055] 12. Close valve B, send working medium B to the capillary heating tank in the heat exchanger for heating. When the temperature reaches the threshold value, it flows back to the medium storage tank through the pipeline.
[0056] 13. Open valve C to drive the power component to do work.
[0057] 14. Close valve D, send working medium D to the capillary heating tank in the heat exchanger for heating. When the temperature reaches the threshold value, it flows back to the medium storage tank through the pipeline.
[0058] 15. Open valve A to drive the power component to do work.
[0059] 16. Close valve C, send working medium C to the capillary heating tank in the heat exchanger for heating. When the temperature reaches the threshold value, it flows back to the medium storage tank through the pipeline.
[0060] The above steps complete a full cycle process.
[0061] In this embodiment, the external power component of the adiabatic work chamber can be used to convert and output electric power, or can be directly connected to a compressor to achieve refrigeration, or can be used in combination.
[0062] In addition to doing work externally, the thermal power system of the present utility model theoretically does not dissipate heat to the outside of the system, thus greatly improving the thermal efficiency.
[0063] The beneficial effects of the thermal power system of the present utility model are:
[0064] Through the above technical solutions, the present utility model includes at least a pair of adiabatic work chambers with adjustable space volume and at least a pair of heat energy conversion devices. The pair of adiabatic work chambers correspond to the at least a pair of heat energy conversion devices and are respectively communicated with the corresponding heat energy conversion devices. The adiabatic work chamber is also connected to an external power component. The pair of heat energy conversion devices alternately drive the corresponding adiabatic work chambers to do work and expand, and push the other adiabatic work chamber to contract with equal volume, thereby driving the external power component to move in a cycle, do work externally, utilize the self-thermal kinetic energy of the working medium to achieve a closed-cycle thermal conversion, do not dissipate heat to the outside, continuously output power externally, constitute a thermal power system, greatly reduce the heat energy loss to the outside in a simple way, greatly improve the heat utilization efficiency, and realize the efficient utilization of solar energy or other heat source energies.
[0065] The above is only the preferred embodiment of the present utility model, and does not limit the patent scope of the present utility model accordingly. Any equivalent structure or process transformation made by using the specification and drawings of the present utility model, or directly or indirectly applied to other related technical fields, shall be included in the patent protection scope of the present utility model by the same token.
Claims
1. A thermodynamic system, characterized in that, It includes at least a pair of adiabatic work chambers with scalable spatial volume and at least a pair of heat energy conversion devices. The pair of adiabatic work chambers corresponds to the at least a pair of heat energy conversion devices and is respectively communicated with the corresponding heat energy conversion devices. The adiabatic work chambers are also connected to an external power component. The pair of heat energy conversion devices cyclically and alternately drive the corresponding adiabatic work chambers to do work and expand, and push the other adiabatic work chamber to contract with equal volume, thereby driving the external power component to move cyclically and reciprocally to do external work.
2. The thermodynamic system according to claim 1, characterized in that, The thermal power system further includes a heat exchange dish. The heat energy conversion device includes a medium storage tank and a heating tank. The heating tank is located inside the heat exchange dish. The medium storage tank is located outside the heat exchange dish and is adiabatic to the outside. A working medium is arranged in the medium storage tank. The medium storage tank is communicated with the heating tank through an adiabatic pipeline with a pipeline pump to control the pumping of the working medium into the heating tank for heating. The medium storage tank and the heating tank are also communicated through an adiabatic return pipeline to allow the heated working medium to flow back to the medium storage tank. The medium storage tank is communicated with the corresponding adiabatic work chamber through an adiabatic pipeline with a control opening and closing device.
3. The thermodynamic system according to claim 2, characterized in that, The control opening and closing device is a valve.
4. The thermodynamic system according to claim 1, characterized in that, The adiabatic work chamber is a cylinder with a piston or a flexible, foldable and scalable chamber wall.
5. The thermodynamic system according to claim 4, wherein The bottom surface of the adiabatic work chamber is fixed, and the top surface can move linearly in a reciprocating manner. The top surfaces of the two adiabatic work chambers are connected to the external power component to drive the external power component to move cyclically and reciprocally to do external work.
6. The thermodynamic system according to claim 4, characterized in that, There is one external power component. The top surfaces of the pair of adiabatic work chambers face each other. The external power component is sandwiched between the top surfaces of the pair of adiabatic work chambers. The two stress surfaces of the external power component are respectively attached to the top surfaces of the corresponding adiabatic work chambers. The external power component is movably connected to a reciprocating external transmission connecting rod to drive the external power system to continuously output power outward through the transmission connecting rod.
7. The thermodynamic system according to claim 4, characterized in that, There are two external power components, which are respectively fixedly connected to the top surfaces of the two adiabatic work chambers. The pair of adiabatic work chambers are arranged in parallel and the top surfaces face the same direction. The external power component includes two transmission racks arranged in parallel with opposite tooth grooves. One end of each transmission rack is connected to the top surface of the corresponding adiabatic work chamber. A gear is sandwiched between the two transmission racks. The two transmission racks move linearly in opposite directions under the drive of the pair of adiabatic work chambers to drive the external power system to rotate continuously and reciprocally to do external work.
8. The thermodynamic system according to claim 7, characterized in that, A rotation control ring is arranged on one of the two transmission racks. The rotation control ring is connected to a rotation connecting rod, and the rotation connecting rod can be connected to a generator or a compressor to realize the conversion of heat energy into electricity or realize refrigeration, or be used in combination.
9. The thermodynamic system according to claim 2, wherein A number of capillary pipelines are arranged in the heating tank. The heat exchange dish continuously absorbs the heat of the external heat source and transfers it to the heating tank to realize heat energy exchange.