阅读说明：本技术 一种地热发电装置 (Geothermal power generation device ) 是由 李景营 朱铁军 郭子江 邢建军 李凤名 宋昊 李洪波 于 2020-07-01 设计创作，主要内容包括：本发明公开了一种地热发电装置,加热罩内设有空腔,导热机构用于将地热流体的热量传导给加热罩；热缸的固定端与空腔连通,热缸内设有第一活塞；冷缸内设有第二活塞,冷缸的尾部通过导管与空腔连通；传动轴的一端与转盘的中心连接,传动轴的另一端贯穿安装架并与发电机的动力输入端连接,第一驱动杆远离转盘的一端与第一活塞可旋转连接,第二驱动杆远离转盘的一端与第二活塞可旋转连接。加热罩、热缸、冷缸和转盘集成一个斯特林发动机,地热流体中的热量通过导热机构传导给加热罩,驱动转盘带动发电机转动,设备结构简单,建造和运行成本低,能够满足普通家庭的需要,解决了一些偏远地区居民的用电困难。(The invention discloses a geothermal power generation device.A cavity is arranged in a heating cover, and a heat conduction mechanism is used for conducting the heat of geothermal fluid to the heating cover; the fixed end of the hot cylinder is communicated with the cavity, and a first piston is arranged in the hot cylinder; a second piston is arranged in the cold cylinder, and the tail part of the cold cylinder is communicated with the cavity through a guide pipe; the one end of transmission shaft is connected with the center of carousel, and the other end of transmission shaft runs through the mounting bracket and is connected with the power input end of generator, and the one end and the first piston swivelling joint of carousel are kept away from to first actuating lever, and the one end and the second piston swivelling joint of carousel are kept away from to the second actuating lever. The Stirling engine is integrated by the heating cover, the hot cylinder, the cold cylinder and the rotary table, heat in the geothermal fluid is conducted to the heating cover through the heat conduction mechanism, the rotary table is driven to drive the generator to rotate, the equipment is simple in structure, the construction and operation cost is low, the requirements of ordinary families can be met, and the electricity utilization difficulty of residents in remote areas is solved.)

1. A geothermal power generation device is characterized in that: the device comprises a heat conduction mechanism, an installation frame, a heating cover, a hot cylinder, a cold cylinder, a rotary table, a transmission shaft and a generator, wherein the heating cover is fixedly arranged through the installation frame, a cavity is arranged in the heating cover, a heat dissipation end of the heat conduction mechanism is connected with the inner wall of the heating cover, a heat absorption end of the heat conduction mechanism extends into the geothermal fluid, and the heat conduction mechanism is used for conducting the heat of the geothermal fluid to the heating cover;

the hot cylinder is fixedly arranged on one side, away from the heat conducting mechanism, of the heating cover, the fixed end of the hot cylinder is communicated with the cavity, and a first piston is arranged in the hot cylinder; the cold cylinder is fixedly connected with the mounting frame, the central axis of the cold cylinder is perpendicular to the central axis of the hot cylinder, a second piston is arranged in the cold cylinder, and the tail part of the cold cylinder is communicated with the cavity through a guide pipe;

the one end of transmission shaft with the center of carousel is connected, the other end of transmission shaft runs through the mounting bracket and with the power input end of generator is connected, the terminal surface of carousel be equipped with the parallel drive shaft of transmission shaft, the cover is equipped with first actuating lever and second actuating lever in the drive shaft, first actuating lever is kept away from the one end of carousel with first piston rotatable coupling, the second actuating lever is kept away from the one end of carousel with second piston rotatable coupling.

2. The geothermal power generation device according to claim 1, wherein: and the peripheral wall of the cold cylinder is provided with cooling fins.

3. The geothermal power generation device according to claim 1, wherein: the heat conducting mechanism comprises a heat conducting pipe, a first heat conducting sheet and a second heat conducting sheet, the heat radiating end of the heat conducting pipe is fixedly connected with the inner wall of the heating cover through the first heat conducting sheet, and the heat absorbing end of the heat conducting pipe is fixedly connected with the second heat conducting sheet.

4. A geothermal power plant according to claim 3, wherein: the heat conduction pipe is internally provided with an accommodating cavity along the length direction of the heat conduction pipe, and heat conduction liquid is filled in the accommodating cavity.

5. The geothermal power generation device according to claim 1, wherein: the transmission shaft is characterized by further comprising a starting motor, and the starting motor is used for driving the transmission shaft to rotate around the central axis of the transmission shaft.

6. The geothermal power generation device according to claim 1, wherein: and a composite heat insulation material is coated on one side of the heating cover, which is far away from the heat conducting mechanism.

7. The geothermal power generation device according to claim 6, wherein: the composite heat-insulating material comprises the following components in parts by weight: epoxy resin2-4 parts of resin, Fe₂O₃5-8 parts of-HNTs hybrid material, 12-14 parts of asbestos powder, 0.1-0.3 part of polyphenylene sulfide, 0.2-0.3 part of m-cresol, 0.1-0.3 part of dopamine, 0.1-0.3 part of early strength agent, 3-5 parts of steel fiber, 0.3-0.5 part of dimethyl silicone oil and 0.2-0.4 part of toughening agent.

8. The geothermal power generation device according to claim 7, wherein: the toughening agent comprises polysulfone, polyimide and nano calcium carbonate.

9. The geothermal power generation device according to claim 8, wherein: the weight ratio of the polysulfone to the polyimide to the nano calcium carbonate is 2:1: 3.4.

10. A geothermal power plant according to claim 9, wherein: the early strength agent is triethanolamine.

Technical Field

The invention belongs to the technical field of power generation equipment, and particularly relates to a geothermal power generation device.

Background

The geothermal fluid is a generic name of various thermal fluids having a temperature higher than a normal value, such as underground hot water, geothermal steam, and heat transfer gas, and is mainly used for underground hot water and geothermal steam. Along with the shortage of fossil energy and the increase of environmental pressure, people pay more and more attention to the clearing of renewable green energy, and more geothermal power stations are built and operated. However, the existing geothermal power generation equipment has complex structure and high construction and operation cost, is only suitable for large-scale power stations, cannot meet the requirements of common families, and is difficult to be widely popularized and used.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides the geothermal power generation device, the heating cover, the hot cylinder, the cold cylinder and the turntable are integrated into a Stirling engine, the heat energy in the geothermal fluid on the ground surface is converted into mechanical energy to drive the generator to rotate, the complexity of equipment is reduced, and the requirements of common families are met.

In order to achieve the above purpose, the solution adopted by the invention is as follows: a geothermal power generation device comprises a heat conduction mechanism, an installation frame, a heating cover, a hot cylinder, a cold cylinder, a rotary table, a transmission shaft and a power generator, wherein the heating cover is fixedly arranged through the installation frame, a cavity is arranged in the heating cover, a heat dissipation end of the heat conduction mechanism is connected with the inner wall of the heating cover, a heat absorption end of the heat conduction mechanism extends into a geothermal fluid, and the heat conduction mechanism is used for conducting the heat of the geothermal fluid to the heating cover; the hot cylinder is fixedly arranged on one side, away from the heat conducting mechanism, of the heating cover, the fixed end of the hot cylinder is communicated with the cavity, and a first piston is arranged in the hot cylinder; the cold cylinder is fixedly connected with the mounting frame, the central axis of the cold cylinder is perpendicular to the central axis of the hot cylinder, a second piston is arranged in the cold cylinder, and the tail part of the cold cylinder is communicated with the cavity through a guide pipe; the one end of transmission shaft with the center of carousel is connected, the other end of transmission shaft runs through the mounting bracket and with the power input end of generator is connected, the terminal surface of carousel be equipped with the parallel drive shaft of transmission shaft, the cover is equipped with first actuating lever and second actuating lever in the drive shaft, first actuating lever is kept away from the one end of carousel with first piston rotatable coupling, the second actuating lever is kept away from the one end of carousel with second piston rotatable coupling.

Further, the periphery wall of the cold cylinder is provided with cooling fins.

Furthermore, the heat conducting mechanism comprises a heat conducting pipe, a first heat conducting sheet and a second heat conducting sheet, the heat radiating end of the heat conducting pipe is fixedly connected with the inner wall of the heating cover through the first heat conducting sheet, and the heat absorbing end of the heat conducting pipe is fixedly connected with the second heat conducting sheet.

Furthermore, an accommodating cavity along the length direction of the heat conduction pipe is arranged in the heat conduction pipe, and heat conduction liquid is filled in the accommodating cavity.

Further, the transmission shaft further comprises a starting motor, and the starting motor is used for driving the transmission shaft to rotate around the central axis of the transmission shaft.

Further, one side of the heating cover, which is far away from the heat conducting mechanism, is coated with a composite heat insulating material.

Further, the composite heat-insulating material comprises the following components in parts by weight: 2-4 parts of epoxy resin, 5-8 parts of Fe2O3-HNTs (hydrogenated nitrile butadiene styrene) hybrid material, 12-14 parts of asbestos powder, 0.1-0.3 part of polyphenylene sulfide, 0.2-0.3 part of m-cresol, 0.1-0.3 part of dopamine, 0.1-0.3 part of early strength agent, 3-5 parts of steel fiber, 0.3-0.5 part of dimethyl silicone oil and 0.2-0.4 part of toughening agent.

Further, the toughening agent comprises polysulfone, polyimide and nano calcium carbonate.

Further, the weight ratio of the polysulfone to the polyimide to the nano calcium carbonate is 2:1: 3.4.

Further, the early strength agent is triethanolamine.

The invention has the beneficial effects that:

(1) the heating cover, the hot cylinder, the cold cylinder and the rotary table are integrated into a Stirling engine, the heat of the geothermal fluid flowing to the ground surface is transferred to the heating cover through the heat conducting mechanism, the gas in the cavity is further heated, and the rotary table is driven to drive the generator to rotate;

(2) the transmission structure is simple, the failure rate is low, and the energy conversion efficiency is high;

(3) the equipment has light weight and relatively small volume and is convenient to transport.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the heating mantle of the present invention;

FIG. 3 is a schematic view of the transmission structure of the turntable and the generator of the present invention;

in the drawings: 1-a heat conducting mechanism, 11-a heat conducting pipe, 12-a first heat conducting sheet, 13-a second heat conducting sheet, 2-a mounting frame, 3-a heating cover, 31-a cavity, 32-a composite heat insulating material, 4-a hot cylinder, 41-a first piston, 42-a first driving rod, 5-a cold cylinder, 51-a second piston, 52-a conduit, 53-a second driving rod, 54-a heat radiating fin, 6-a rotating disc, 61-a driving shaft, 7-a driving shaft, 8-a generator and 9-a starting motor.

Detailed Description

The invention is further described below with reference to the accompanying drawings: