CN208816281U - A kind of geothermal power generation unit - Google Patents

Abstract

The utility model provides a kind of geothermal power generation unit, including gas-producing well and inverted well, gas-producing well is connected to vapour liquid separator, the upper end of vapour liquid separator is connected to vapor can, its lower end is connected to an entrance of the heat pipe in heat exchanger, vapor can has steam (vapor) outlet and liquid outlet, and steam (vapor) outlet connects level-one generator by first turbine, and first turbine drives level-one electrical power generators under the promotion of high-temperature steam；Liquid outlet is connected to another entrance of the heat pipe in heat exchanger, and the outlet of heat pipe is connected to by inverted well with underground reservoir；The cold pipe that heat exchange is carried out with heat pipe is equipped in heat exchanger, there is the cold matter of flowing in cold pipe, the outlet of cold pipe is connect by second-stage worm gear with secondary generator, secondary generator power generation is driven under the promotion for the high steam that second-stage worm gear generates after the heat absorption of cold matter, second-stage worm gear lower end is equipped with leakage fluid dram, cold matter in second-stage worm gear is connect by leakage fluid dram with cooler, and cooler is connect by return pipe with the entrance of cold pipe.

Description

A kind of geothermal power generation unit

Technical field

The utility model relates to geothermal power generation technical field more particularly to a kind of geothermal power generation units.

Background technique

Geothermal energy is the natural thermal energy extracted by the earth's crust, lava of this energy from earth interior, and in the form of heating power In the presence of, it is the energy for being led to volcano eruption and earthquake, the temperature of earth interior is up to 7000 DEG C, and in 80 to 100 public miles Depth, temperature can be down to 650 to 1200 DEG C, and the flowing and lava through underground water influx 1 to 5 kilometer from the ground of the earth's crust, Heating power is able to be transferred to the place for being closer to ground, and the lava of high temperature heats neighbouring underground water, these warmed-up water Eventually ooze out ground, it is most simple and most in accordance with cost-benefit method with geothermal energy, be exactly directly take these heat sources, and Its energy is extracted, geothermal energy is renewable resource, and energy is the energy of life, and the daily labor service activity of people, is attended class at sports Learn and be engaged in other activities and human body maintains normal body temperature, various physiological activities that will consume energy, just as steam Machine needs to burn coal, internal combustion engine needs to need electricity consumption the same with gasoline, motor, and geothermal energy is a kind of new clear energy sources, is working as In the case that the environmental consciousness of moderns increasingly enhances and the energy is increasingly in short supply, the rational exploitation and utilization of geothermal energy resources has more been come More it has been favored by people, wherein being 250,000,000,000 tons of standard coals away from the geothermal energy stored in 2000 meters of earth's surface, national underground heat can be opened Adopting stock number is annual 68 billion cubic meter, and contained geothermal flow is 973,000,000,000,000 kJ (kilojoule)s, and in geothermal utilization scale, China is more closely It ranks the first in the world always over year, and to be often close on 10% speed steady-state growth, in the Development of Geothermal Resources in China, passes through The technological accumulation of many years, geothermal power generation remarkable benefit promoted, in addition to geothermal power generation, directly using GEOTHERMAL WATER progress building heating, Develop the utilization ways such as agriculture in greenhouse and Hot Spring Tourism also comparatively fast to be developed, the whole nation has been basically formed is with Tibet Yangbajing The geothermal power generation of representative, by the geothermal heating system of representative, recuperating by representative of southeastern coast of Tianjin and Xi'an and travel and with The North China Plain is the plantation of representative and the development and utilization pattern of cultivation.

Current existing geother-mal power generation unit, whole thermal efficiency conversion are lower.

Utility model content

In view of this, the embodiments of the present invention, which provide a kind of thermal efficiency, converts high geothermal power generation unit.

The embodiments of the present invention provide a kind of geothermal power generation unit, including piercing the gas-producing well of underground reservoir and returning Well is filled, the gas-producing well is connected to vapour liquid separator, and the upper end of the vapour liquid separator is connected to vapor can, lower end and heat exchange One entrance of the heat pipe in device is connected to, and the vapor can has steam (vapor) outlet and liquid outlet, and the steam (vapor) outlet passes through level-one Worm gear connects level-one generator, and the first-stage worm gear drives the level-one electrical power generators under the promotion of high-temperature steam；It is described Liquid outlet is connected to another entrance of the heat pipe in the heat exchanger, the outlet of the heat pipe by the inverted well with The underground reservoir connection；It is equipped with the cold pipe for carrying out heat exchange with the heat pipe in the heat exchanger, has in the cold pipe The outlet of the cold matter of flowing, the cold pipe is connect by second-stage worm gear with secondary generator, and the second-stage worm gear is in the cold matter The secondary generator is driven to generate electricity under the promotion of the high steam generated after heat absorption, the second-stage worm gear lower end is equipped with drain Mouthful, the cold matter in the second-stage worm gear is connect by the leakage fluid dram with cooler, the cooler pass through return pipe with it is described The entrance of cold pipe connects.

Further, the gas-producing well pierces the first underground reservoir, and the inverted well pierces the second underground reservoir, institute It states the first underground reservoir and second underground reservoir is spaced from each other by rock stratum, and first underground reservoir more leans on Nearly magma chamber.

Further, first underground reservoir and second underground reservoir are by by its rock stratum spaced apart from each other Infiltration be interconnected.

Further, the cooler is set to indoor for indoor refrigeration.

Further, the vapor can is connected by first pipe with second pipe with the first-stage worm gear, and described first The caliber of pipeline is greater than the caliber of the second pipe, and the first pipe connects the steam (vapor) outlet of the vapor can, High-temperature steam in the vapor can flows into the first-stage worm gear, the level-one snail from the vapor can by the first pipe High-temperature steam and liquid in wheel are back in the vapor can by the second pipe.

The technical solution that the embodiments of the present invention provide has the benefit that underground heat hair described in the utility model Motor group has directly using the level-one generator of geothermal energy and the secondary generator by heat exchanger indirect utilization geothermal energy, leads to It crosses the secondary generator to continue to generate electricity come the waste heat of the geothermal energy further using the level-one generator after, not only The utilization efficiency of underground heat is increased, and can also further energy conservation and environmental protection.

Detailed description of the invention

Fig. 1 is the utility model geothermal power generation unit schematic diagram.

Specific embodiment

It is practical new to this below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer Type embodiment is further described.

Referring to FIG. 1, the embodiments of the present invention provide a kind of geothermal power generation unit, the production of underground reservoir is pierced Gas well 3 and inverted well 4, level-one generator 9 are connect by first-stage worm gear 8 with the gas-producing well 3, the high temperature in the gas-producing well 3 First-stage worm gear 8 described in Steam Actuation drives the level-one generator 9 to generate electricity, and secondary generator 15 connects second-stage worm gear 14, described Second-stage worm gear 14 is using the high-temp liquid in the waste heat and the gas-producing well 3 of the high-temperature steam of the first-stage worm gear 8 to drive State the power generation of secondary generator 15.

The gas-producing well 3 pierces the first underground reservoir 1, and the inverted well 4 pierces the second underground reservoir 2, and described One underground reservoir 1 and second underground reservoir 2 are spaced from each other by rock stratum, and first underground reservoir 1 more leans on Nearly magma chamber 18.Thus, first underground reservoir 1 is higher than the temperature in second underground reservoir 2, the production gas Well 3 acquires a large amount of high temperature and high pressure steams from energy first underground reservoir 1.First underground reservoir 1 and described second Underground water of the underground reservoir 2 by the way that the infiltration of its rock stratum spaced apart from each other is interconnected, in second underground reservoir 2 First underground reservoir 1 is penetrated by rock stratum, and forms the steaming of high temperature and pressure in first underground reservoir 1 Gas is mutated with strata pressure caused by preventing high temperature and high pressure steam in first underground reservoir 1 collected, and then made Formation damage.

The gas-producing well 3 is connected to vapour liquid separator 5, and the upper end of the vapour liquid separator 5 is connected to vapor can 6, under End is connected to an entrance of the heat pipe 12 in heat exchanger 10, and the high pressure high temperature vapor acquired from the gas-producing well 3 is entering institute During stating gas-liquid separator 5, probably due to the variation of environment temperature causes partial vapor to be liquefied as high-temp liquid, high temperature steams Vapor-liquid separation occurs in the gas-liquid separator 5 for vapour and high-temp liquid, high-temperature steam from the upper end of the gas-liquid separator 5 into Enter the vapor can 6, high-temp liquid enters in the heat exchanger 10 from the lower end of the vapour liquid separator 5.The heat exchange There is the heat pipe 12 and cold pipe 13 for being able to carry out heat exchange, the heat pipe 12 goes out with two entrances and one in device 10 Mouthful, the cold pipe 13 has an entrance and an one outlet, and wherein the one of the lower end of the vapour liquid separator 5 and the heat pipe 12 Entrance connection.

The vapor can 6 has steam (vapor) outlet and liquid outlet, and the steam (vapor) outlet connects level-one hair by first-stage worm gear 8 Motor 9, the first-stage worm gear 8 drive the level-one generator 9 to generate electricity under the promotion of high-temperature steam.The vapor can 6 and institute It states first-stage worm gear 8 to connect by first pipe 7 and second pipe 11, the caliber of the first pipe 7 is greater than the second pipe 11 caliber, and the first pipe 7 connects the steam (vapor) outlet of the vapor can 6, the high-temperature steam in the vapor can 6 The first-stage worm gear 8, high-temperature steam and liquid in the first-stage worm gear 8 are flowed into from the vapor can 7 by the first pipe 7 Body is back in the vapor can 6 by the second pipe 11.High-temperature steam enters the level-one snail from the first pipe 7 The first-stage worm gear 8 is pushed to rotate after wheel 8, the first-stage worm gear 8 is connect with the rotor of the level-one generator 9, thus described First-stage worm gear 8 drives the rotor 9 to rotate when rotating, so that the level-one generator 9 be made to generate electricity.Into the first-stage worm gear 8 High-temperature steam after pushing the first-stage worm gear 8 to rotate, partial liquefaction, part or steam condition, the then level-one snail These steams and high-temp liquid in wheel 8 are returned in the vapor can 6 by the second pipe stream 11, flow back to the vapor can 6 In steam other high-temperature vapours can be followed to be again introduced into the first-stage worm gear 8, to improve the utilization rate of high-temperature vapour, And improve efficiency of heating- utilization.The caliber of the second pipe 11 is smaller, and effect is that the steam of reflux is made to keep high pressure and high speed.

The liquid outlet is connected to another entrance of the heat pipe 12 in the heat exchanger 10, the outlet of the heat pipe It is connected to by the inverted well 4 with second underground reservoir 2.From the vapour liquid separator 5 flow into high-temp liquid and from The high-temp liquid being discharged in the vapor can 6 enters the heat pipe 12 by the two entrances of the heat pipe 12.The heat pipe 12 After carrying out heat exchange with the cold pipe 13, the fluid temperature in the heat pipe 12 is reduced, and is then arranged from the outlet of the heat pipe 12 Enter the inverted well 4, second underground reservoir 2 is flowed back to by the inverted well 4.

It is described cold after there is the cold matter of flowing, the heat pipe 12 to carry out heat exchange with the cold pipe 13 in the cold pipe 13 Temperature in pipe 13 increases, and vaporizes the cold matter largely and generates cryogenic high pressure steam.The outlet of the cold pipe 13 passes through second level Worm gear 14 is connect with secondary generator 15, and the cryogenic high pressure steam that the second-stage worm gear 14 generates after the cold matter heat absorption pushes away The dynamic lower drive secondary generator 15 generates electricity, and 14 lower end of second-stage worm gear is equipped with leakage fluid dram, pushes the second-stage worm gear 14 After rotation, the cold matter of steam-like can liquefy, and vapour pressure can reduce.Cold matter in the second-stage worm gear 14 by the leakage fluid dram with Cooler 16 connects, after cold matter enters the cooler 16, a large amount of evaporation endothermic, so that environment temperature be made to reduce.It is preferred that institute It states cooler 16 and is set to interior for indoor refrigeration.The cooler 16 is connected by the entrance of return pipe 17 and the cold pipe 13 It connects, cold matter liquefies again during reflux.

It can be seen from the above, geothermal power generation unit described in the utility model can not only make the level-one generator 9 and institute The power generation of secondary generator 15 is stated, but also can use the low temperature cold matter after power generation for indoor refrigeration, to adequately be utilized Underground energy, improves the utilization rate of energy.

Herein, the nouns of locality such as related front, rear, top, and bottom are to be located in figure with components in attached drawing and zero Part mutual position defines, only for the purpose of expressing the technical solution clearly and conveniently.It should be appreciated that the noun of locality Use should not limit the claimed range of the application.

In the absence of conflict, the feature in embodiment and embodiment herein-above set forth can be combined with each other.

The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model Within the scope of shield.

Claims (5)

1. a kind of geothermal power generation unit, it is characterised in that: gas-producing well and inverted well including piercing underground reservoir, the production gas Well is connected to vapour liquid separator, and the upper end of the vapour liquid separator is connected to vapor can, the heat pipe in lower end and heat exchanger The connection of one entrance, the vapor can have steam (vapor) outlet and liquid outlet, and the steam (vapor) outlet connects level-one by first-stage worm gear Generator, the first-stage worm gear drive the level-one electrical power generators under the promotion of high-temperature steam；The liquid outlet and institute Another entrance connection of the heat pipe in heat exchanger is stated, the outlet of the heat pipe passes through the inverted well and the underground heat accumulation Layer connection；It is equipped with the cold pipe for carrying out heat exchange with the heat pipe in the heat exchanger, there is the cold matter of flowing, institute in the cold pipe The outlet for stating cold pipe is connect by second-stage worm gear with secondary generator, the height that the second-stage worm gear generates after the cold matter heat absorption It presses and the secondary generator is driven to generate electricity under the promotion of steam, the second-stage worm gear lower end is equipped with leakage fluid dram, the second-stage worm gear In cold matter connect with cooler by the leakage fluid dram, the cooler passes through return pipe and connect with the entrance of the cold pipe.

2. geothermal power generation unit as described in claim 1, it is characterised in that: the gas-producing well pierces the first underground reservoir, The inverted well pierces the second underground reservoir, and first underground reservoir and second underground reservoir pass through rock stratum phase It mutually separates, and first underground reservoir is closer to magma chamber.

3. geothermal power generation unit as claimed in claim 2, it is characterised in that: first underground reservoir and second ground Lower reservoir is by the way that the infiltration of its rock stratum spaced apart from each other to be interconnected.

4. geothermal power generation unit as claimed in claim 2, it is characterised in that: the cooler is set to indoor for indoor system It is cold.

5. geothermal power generation unit as described in claim 1, it is characterised in that: the vapor can and the first-stage worm gear pass through the One pipeline is connected with second pipe, and the caliber of the first pipe is greater than the caliber of the second pipe, and the first pipe The steam (vapor) outlet of the vapor can is connected, the high-temperature steam in the vapor can is by the first pipe from the steam Tank flows into the first-stage worm gear, and the high-temperature steam and liquid in the first-stage worm gear are back to the steaming by the second pipe In vapour tank.