Gravity energy storage heat pump
By designing a gravity energy storage heat pump, the power energy is converted into gravity potential energy of the mass body when the power grid is idle, and the low-temperature waste heat is converted into high-grade heat energy, the problem of low waste heat recovery efficiency of thermal power generation is solved, and the effect of energy conservation and grid pressure balance is achieved.
Patent Information
- Application Number
- CN202510305905.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2025-05-13
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The prior art is difficult to effectively improve the waste heat recovery efficiency of thermal power generation, resulting in low thermal energy quality and inability to effectively utilize low-quality heat.
A gravity energy storage heat pump is designed. By setting up a heat absorbing cylinder, a top seal, a sliding piston, a high-pressure chamber, a high-temperature heat conduction pipe and a mass body, the electrical energy is converted into the gravity potential energy of the mass body when the power grid is idle, and the low-temperature waste heat is converted into high-grade thermal energy.
During peak use of the power grid, the gravity potential energy stored in the mass body is used to provide a stable negative pressure environment for the high-voltage cavity, absorb waste heat, and achieve the effect of saving energy and balancing the grid pressure.
Smart Images
Figure CN119983603A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field related to heat pumps, and in particular to a gravity energy storage heat pump. Background Art
[0002] A heat pump is a device that transfers thermal energy from a low-level heat source to a high-level heat source. It is also a new energy technology that has attracted much attention in the world. A heat pump usually obtains low-grade thermal energy from the air, water or soil in nature, does work through external force, and then provides people with usable high-grade thermal energy. Thermal power generation produces a large amount of low-quality heat, which cannot be used for heating residents. Using heat pumps for waste heat recovery from thermal power generation can greatly improve the quality of thermal energy. The main problem solved by the present invention is how to improve the waste heat recovery problem of thermal power generation. Summary of the invention
[0003] The object of the present invention is to provide a gravity energy storage heat pump to overcome the above-mentioned defects in the prior art.
[0004] The present invention is achieved through the following technical solutions.
[0005] A gravity energy storage heat pump of the present invention comprises a base and a heat absorption tube, wherein the upper side of the base is provided with a heat absorption tube, a slide groove is provided in the heat absorption tube, an opening is provided at the lower side of the slide groove, a sliding piston is provided in the slide groove for sliding up and down, a power mechanism for driving the sliding piston to move upward is provided at the upper side of the high-pressure chamber, a mass body is provided at the lower side of the sliding piston, a top sealing body is provided at the upper side of the heat absorption tube, a high-pressure chamber is provided in the top sealing body, a heat insulation layer is provided at the wall of the high-pressure chamber, a high-temperature heat conductive pipe is provided in the high-pressure chamber, a heat transfer medium is provided in the high-pressure chamber, a low-temperature heat conductive pipe is provided on the outer side of the heat absorption tube, and a protective shell is provided on the outer side of the low-temperature heat conductive pipe.
[0006] According to a further technical solution, a threaded hole is provided in the middle of the sliding piston, a threaded rod is threadedly connected to the threaded hole, a hole is provided on the upper side of the high-pressure chamber, and a through hole on the upper side wall of the high-pressure chamber passes through the threaded rod.
[0007] A further technical solution is that a passive gear is provided at the upper end of the threaded rod, the passive gear is meshed with a driving gear, the shaft of the driving gear is connected with a power motor, the shaft end of the threaded rod is provided with a generator, and a dust cover is provided on the upper side of the top sealing body, and the dust cover covers the passive gear and the driving gear.
[0008] According to a further technical solution, a mounting tube is provided on the lower side of the sliding piston, a thread is provided on the outer side of the mounting tube, the mass body comprises two groups of half rings, the two groups of half rings are connected by screws, a mounting threaded hole is formed between the two groups of half rings, and the mounting threaded hole cooperates with the thread of the mounting tube.
[0009] According to a further technical solution, a piston sealing ring is provided around the sliding piston.
[0010] A further technical solution is that a mounting frame is provided on the outside of the top sealing body, a heat storage body is installed on the mounting frame, a heat preservation cavity is provided on the lower side of the heat storage body, water is provided in the heat preservation cavity, a liquid outlet pipe and a liquid inlet pipe are connected to the heat preservation cavity, the liquid outlet pipe is connected to the liquid outlet of the high-temperature heat conductive pipe, the liquid inlet of the high-temperature heat conductive pipe is connected to the liquid inlet pipe, the heat storage body is provided with a circulating pump, and the circulating pump connects the heat preservation cavity and the liquid inlet pipe.
[0011] A further technical solution is that a second pipe and a first pipe are connected to the upper side of the insulation chamber, a water replenishment pump is connected to the outer end of the second pipe, a switch solenoid valve is provided in the first pipe, a sliding plate is provided for sliding inside the insulation chamber, and a spring is provided between the sliding plate and the lower wall of the insulation chamber.
[0012] Beneficial effects of the present invention:
[0013] A gravity energy storage heat pump of the present invention is provided with a heat absorption cylinder, a top sealing body, a sliding piston, a high-pressure chamber, a high-temperature heat conductive pipe, a mass body, etc. Compared with the traditional heat pump, the device converts electrical energy into the gravitational potential energy of the mass body when the power grid is idle, and converts the low-temperature waste heat into high-grade thermal energy. When the power grid is in peak usage, the gravitational potential energy stored in the mass body is used to provide a stable negative pressure environment for the high-pressure chamber, providing an energy source for the device to absorb waste heat, thereby saving energy and balancing the pressure of the power grid.
[0014] This device can adjust the negative pressure value in the high-pressure chamber by adjusting the number of mass bodies, and set the boiling point of the liquid working medium as close as possible to the temperature setting in the low-temperature heat pipe to adapt to low-grade thermal energy at different temperatures. Under the condition of the same height of the slideway, the sliding piston rises to the limit height, which can form a higher pressure in the high-pressure chamber, which is conducive to collecting higher-grade thermal energy.
[0015] The small area on the upper side of the device has good thermal insulation, which is beneficial to prevent high temperature from diffusing into the environment. The large area on the lower side has good thermal conductivity, which is beneficial to the large-scale conduction of low-grade heat in the environment into the high-pressure chamber. Compared with traditional heat pumps, this device has a relatively simple structure, is easy to maintain, safe and reliable, and can efficiently absorb low-temperature heat from the environment over a large area. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0017] The present invention is further described below in conjunction with the accompanying drawings and embodiments.
[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;
[0019] Figure 2 yes Figure 1 A top view of the middle mass block 19;
[0020] Figure 3 yes Figure 1 A schematic diagram of the structure enlargement in the middle;
[0021] Figure 4 yes Figure 1 Schematic diagram of the enlarged structure at point B in the middle. DETAILED DESCRIPTION
[0022] Combine the following Figure 1-4 The present invention is described in detail. For the convenience of description, the directions mentioned below are defined as follows: the up, down, left, right, front, and back directions mentioned below are the same as Figure 1 The up-down, left-right, front-back directions of the projection relationship itself are consistent.
[0023] Combined with Figure 1-4 The gravity energy storage heat pump comprises a base 10 and a heat absorption tube 11. The base 10 is provided with a heat absorption tube 11 on the upper side, a slide groove 12 is provided in the heat absorption tube 11, an opening is provided on the lower side of the slide groove 12, a sliding piston 13 is provided in the slide groove 12 for sliding up and down, a power mechanism for driving the sliding piston 13 to move upward is provided on the upper side of the high-pressure chamber 22, a mass body 19 is provided on the lower side of the sliding piston 13, a top sealing body 16 is provided on the upper side of the heat absorption tube 11, a high-pressure chamber 22 is provided in the top sealing body 16, a heat insulation layer 17 is provided on the wall of the high-pressure chamber 22, a high-temperature heat pipe 15 is provided in the high-pressure chamber 22, a heat transfer medium is provided in the high-pressure chamber 22, and the heat transfer medium can be water, ethanol, or CHCIF2. A low-temperature heat pipe 21 is provided on the outer side of the heat absorption tube 11, and a protective shell 20 is provided on the outer side of the low-temperature heat pipe 21.
[0024] When using the device, water with waste heat is introduced into both ends of the low-temperature heat pipe 21. The sliding piston 13 is initially at the top of the slide groove 12. Liquid heat transfer medium is stored in the high-pressure chamber 22. Under the action of gravity, the mass body 19 drives the sliding piston 13 to move downward, and negative pressure is formed in the sealed space in the high-pressure chamber 22. The boiling point of the liquid medium is reduced to below the water temperature in the low-temperature heat pipe 21. The liquid in the high-pressure chamber 22 boils and absorbs waste heat through the low-temperature heat pipe 21 until the sliding piston 13 moves downward to the limit position. The liquid medium in the high-pressure chamber 22 is transformed into gaseous state. The power mechanism drives the sliding piston 13 and the mass body 19 to move upward and reset, compressing the gaseous medium in the high-pressure chamber 22. It is a high-temperature and high-pressure gas, and cold water is passed into the high-temperature heat pipe 15. The high-temperature and high-pressure gas is converted into liquid when it is cooled and releases heat. The water in the high-temperature heat pipe 15 collects high temperature, and the insulation layer 17 plays a role in heat preservation and insulation, thereby converting low-temperature heat into high-temperature heat, realizing the function of a heat pump. Compared with traditional heat pumps, when the power grid is idle, the device converts electrical energy into the gravitational potential energy of the mass body 19, and converts low-temperature waste heat into high-grade thermal energy. When the power grid is in peak use, the gravitational potential energy stored in the mass body 19 is used to provide a stable negative pressure environment for the high-pressure chamber 22, thereby providing energy for the device to absorb waste heat, thereby saving energy and balancing the pressure of the power grid.
[0025] Preferably, a threaded hole 28 is provided in the middle of the sliding piston 13 , a threaded rod 27 is threadedly connected to the threaded hole 28 , a hole is provided on the upper side of the high-pressure chamber 22 , and the through hole on the upper side wall of the high-pressure chamber 22 passes through the threaded rod 27 .
[0026] The threaded rod 27 is rotated, and the threaded rod 27 drives the threaded engagement with the threaded hole 28 , and the threaded rod 27 drives the sliding piston 13 to move upward in the slide groove 12 .
[0027] Preferably, a passive gear 24 is provided at the upper end of the threaded rod 27, and the passive gear 24 is meshed with a driving gear 26. The shaft of the driving gear 26 is connected with a power motor 25, and a generator is provided at the shaft end of the threaded rod 27. A dust cover 23 is provided on the upper side of the top sealing body 16, and the dust cover 23 covers the passive gear 24 and the driving gear 26.
[0028] The dust cover 23 is started to prevent dust, the power motor 25 is started to drive the driving gear 26 to rotate, the driving gear 26 drives the passive gear 24 and the threaded rod 27 to rotate, the power motor 25 provides power for the upward movement of the sliding piston 13, when the sliding piston 13 moves downward under the action of gravity, the sliding piston 13 drives the threaded rod 27 to rotate, the threaded rod 27 provides a generator to supplement electricity for the power grid, and plays a role in storing electricity.
[0029] Preferably, a mounting tube 18 is provided on the lower side of the sliding piston 13, and a thread is provided on the outer side of the mounting tube 18. The mass body 19 includes two groups of half rings 29, which are connected by screws. A mounting threaded hole 30 is formed between the two groups of half rings 29, and the mounting threaded hole 30 cooperates with the thread of the mounting tube 18.
[0030] The two groups of half rings 29 are separated and respectively sent into the slide groove 12 through the openings on the lower side of the slide groove 12, and are connected again with screws, so as to facilitate the installation of the mass body 19 on the outside of the mounting tube 18 with threads. By controlling the number of mass bodies 19, the negative pressure in the high-pressure chamber 22 is controlled to adapt to different temperatures of the waste heat.
[0031] Preferably, a piston sealing ring 14 is provided around the sliding piston 13.
[0032] The piston sealing ring 14 can form a seal with the wall of the slide groove 12. When the piston sealing ring 14 is worn out after long-term use, the piston sealing ring 14 and the sliding piston 13 can be disassembled and replaced.
[0033] Preferably, a mounting frame 34 is provided on the outside of the top sealing body 16, and a heat storage body 32 is installed on the mounting frame 34. A heat preservation chamber 33 is provided on the lower side of the heat storage body 32. Water is provided in the heat preservation chamber 33. The heat preservation chamber 33 is connected with a liquid outlet pipe 39 and a liquid inlet pipe 38. The liquid outlet pipe 39 is connected with the liquid outlet of the high-temperature heat conductive pipe 15, and the liquid inlet of the high-temperature heat conductive pipe 15 is connected with the liquid inlet pipe 38. The heat storage body 32 is provided with a circulating pump 35, and the circulating pump 35 connects the heat preservation chamber 33 and the liquid inlet pipe 38.
[0034] The mounting frame 34 fixes the heat storage body 32 and the top sealing body 16. When a high temperature and high pressure environment is formed in the high pressure chamber 22, the circulation pump 35 is started to discharge the water in the heat preservation chamber 33 into the high temperature heat conduction pipe 15 through the liquid inlet pipe 38, absorbs the high temperature in the high pressure chamber 22, and the water with increased temperature flows back to the heat preservation chamber 33 through the liquid outlet pipe 39, and the heat preservation layer 36 plays a role of heat preservation.
[0035] Preferably, a second pipe 41 and a first pipe 37 are connected on the upper side of the insulation chamber 33, a water replenishment pump 40 is connected to the outer end of the second pipe 41, a switch solenoid valve is provided on the first pipe 37, a sliding plate 42 is slidably provided in the insulation chamber 33, and a spring is provided between the sliding plate 42 and the lower wall of the insulation chamber 33.
[0036] When the water temperature in the insulation chamber 33 reaches the set value, the solenoid valve of the first pipe 37 opens, and under the action of the spring, the sliding plate 42 moves upward to discharge the high-temperature water in the insulation chamber 33 to the outside through the first pipe 37. When the sliding plate 42 moves to the upper limit point, the water replenishment pump 40 starts to replenish the external cold water into the insulation chamber 33 through the second pipe 41, forming a heating cycle.
[0037] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology in this field to understand the content of the present invention and implement it, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.
Claims
1. A gravity energy storage heat pump, comprising a base and a heat absorbing tube, characterized in that: A heat absorption tube is provided on the upper side of the base, a slide groove is provided in the heat absorption tube, an opening is provided on the lower side of the slide groove, a sliding piston is provided in the slide groove for sliding up and down, a power mechanism for driving the sliding piston to move upward is provided on the upper side of the high-pressure chamber, a mass body is provided on the lower side of the sliding piston, a top sealing body is provided on the upper side of the heat absorption tube, a high-pressure chamber is provided in the top sealing body, a heat insulation layer is provided on the wall of the high-pressure chamber, a high-temperature heat pipe is provided in the high-pressure chamber, a heat transfer medium is provided in the high-pressure chamber, a low-temperature heat pipe is provided on the outer side of the heat absorption tube, and a protective shell is provided on the outer side of the low-temperature heat pipe.
2. A gravity energy storage heat pump according to claim 1, characterized in that: A threaded hole is arranged in the middle of the sliding piston, a threaded rod is threadedly connected to the threaded hole, a hole is communicated with the upper side of the high-pressure chamber, and a through hole of the upper side wall of the high-pressure chamber passes through the threaded rod.
3. A gravity energy storage heat pump according to claim 2, characterized in that: A passive gear is provided at the upper end of the threaded rod, the passive gear is meshed with a driving gear, the shaft of the driving gear is connected with a power motor, a generator is provided at the shaft end of the threaded rod, a dust cover is provided on the upper side of the top sealing body, and the dust cover covers the passive gear and the driving gear.
4. A gravity energy storage heat pump according to claim 1, characterized in that: A mounting tube is provided at the lower side of the sliding piston, and a thread is provided at the outer side of the mounting tube. The mass body includes two groups of half rings, which are connected by screws. A mounting threaded hole is formed between the two groups of half rings, and the mounting threaded hole cooperates with the thread of the mounting tube.
5. A gravity energy storage heat pump according to claim 1, characterized in that: A piston sealing ring is arranged around the sliding piston.
6. A gravity energy storage heat pump according to claim 1, characterized in that: A mounting frame is provided on the outside of the top sealing body, a heat storage body is installed on the mounting frame, a heat preservation cavity is provided on the lower side of the heat storage body, water is provided in the heat preservation cavity, a liquid outlet pipe and a liquid inlet pipe are connected to the heat preservation cavity, the liquid outlet pipe is connected to the liquid outlet of the high-temperature heat conductive pipe, the liquid inlet of the high-temperature heat conductive pipe is connected to the liquid inlet pipe, the heat storage body is provided with a circulation pump, and the circulation pump connects the heat preservation cavity and the liquid inlet pipe.
7. A gravity energy storage heat pump according to claim 6, characterized in that: The upper side of the insulation chamber is connected with a second pipe and a first pipe, the outer end of the second pipe is connected with a water replenishment pump, the first pipe is provided with a switch solenoid valve, a sliding plate is provided for sliding inside the insulation chamber, and a spring is provided between the sliding plate and the lower wall of the insulation chamber.