CN211782067U

CN211782067U - Geothermal heat collecting device

Info

Publication number: CN211782067U
Application number: CN201922040152.5U
Authority: CN
Inventors: 翟志祥; 雷炯; 田康; 程孝增
Original assignee: Henan Wanjiang New Energy Group Co ltd
Current assignee: Henan Wanjiang New Energy Group Co ltd
Priority date: 2019-11-23
Filing date: 2019-11-23
Publication date: 2020-10-27
Anticipated expiration: 2029-11-23

Abstract

The utility model discloses a geothermal collecting device, the pressure atomizing device comprises a water inlet pipe, outlet pipe and heat exchanger, the heat exchanger sets up in the geothermal well bottom, the heat exchanger is the cavity setting, the vertical heat insulating board that is equipped with in the heat exchanger, the heat insulating board separates the heat exchanger for water injection chamber and play water cavity, the inlet tube is located on the water injection chamber, the outlet pipe is located on the water cavity, thermal-insulated through-hole on the heat insulating board, be equipped with the shutoff subassembly in the thermal-insulated through-hole, the shutoff subassembly includes the shutoff ring, the shutoff ball, dead lever and spring, the shutoff ring is located and is close to water injection chamber one side in the thermal-insulated through-hole, the dead lever. The utility model belongs to the technical field of the geothermal exploitation, specifically provide an environmental protection and energy saving, make the incessant injection heat exchanger of medium circulation under the condition that does not extract groundwater, improve heat exchange efficiency's geothermal collecting device when guaranteeing the heat absorption effect.

Description

Geothermal heat collecting device

Technical Field

The utility model belongs to the technical field of the geothermal exploitation, specifically indicate a geothermal collection device.

Background

Geothermal energy is natural heat extracted from the earth's crust, from lava rock inside the earth, in the form of heat, which is extracted directly from the heat sources in the simplest and most cost-effective way. China just starts to generate electricity by utilizing geothermal heat, and only utilizes underground hot water to establish a small-sized power station, which is a good starting point of geothermal application.

At present, the development of the geothermal energy of the middle and deep layers at home is two modes, firstly, the mode of extracting the underground hot water mainly adopts the mode of directly extracting the geothermal water of the middle and deep layers for heating the building, the underground hot water is directly extracted for heating the building, the groundwater temperature is directly discharged or recharged after being utilized, but the prior recharging technology is not developed, the average recharging rate is less than 50 percent, the waste of a large amount of social resources is caused, the risk of disasters such as geological collapse caused by the exhaustion of groundwater resources exists, and therefore, in order to protect the groundwater resources, some local government departments have started to forbid the direct extraction of the groundwater resources; and secondly, in an interference-free geothermal mode, the mode is that water is not taken when heat is taken, a hole is drilled in an underground deep thermal reservoir through a drilling well, then a heat exchanger is placed in the hole, heat is absorbed in the heat exchanger in a circulating mode through a medium, the heat of the stratum is utilized on the ground, however, as the heat exchange process needs to be operated in a circulating and reciprocating mode, the heat absorption effect of the heat exchanger can be influenced by continuously injecting cold water into the heat exchanger, and the heat exchange efficiency of the heat exchanger can be influenced by discontinuously injecting cold water.

Disclosure of Invention

For solving the above-mentioned current difficult problem, the utility model provides an environmental protection and energy saving makes the incessant injection heat exchanger of medium circulation under the condition of not extracting groundwater, improves heat exchange efficiency's geothermol power collection device when guaranteeing the heat absorption effect.

The utility model adopts the following technical scheme: the utility model discloses geothermol power collection device, including inlet tube, outlet pipe and heat exchanger, the heat exchanger sets up in the geothermol power shaft bottom, the heat exchanger is the cavity setting, the vertical heat insulating board that is equipped with in the heat exchanger, the heat insulating board separates the heat exchanger for water injection chamber and play water cavity, the inlet tube is located on the water injection chamber, the outlet pipe is located on the water cavity, thermal-insulated through-hole on the heat insulating board, be equipped with the shutoff subassembly in the thermal-insulated through-hole, the shutoff subassembly includes shutoff ring, shutoff ball, dead lever and spring, the shutoff ring is located and is close to water injection chamber one side in the thermal-insulated through-hole, the dead lever is located and is close to play water cavity one side.

Furthermore, be equipped with the heat absorption tubule in the inlet tube wall, the heat absorption tubule is even circumference formula along the inlet tube inner wall and arranges, and the heat of absorbing the stratum can be more even abundant to the heat absorption tubule.

Furthermore, be equipped with the scattered water cavity on the inlet tube, the heat absorption tubule link up with scattered water cavity and water injection chamber mutually.

Furthermore, the two sides of the heat insulation plate are provided with heat insulation coatings, so that the phenomenon that the heat of the heat-exchanged hot water is inverted due to the fact that cold water is newly injected is avoided.

Furthermore, the plugging ring and the plugging ball are made of rubber materials, and have good sealing performance.

Adopt above-mentioned structure the utility model discloses the beneficial effect who gains as follows: the utility model discloses geothermal collecting device reasonable in design, it is simple effective, the hot water that makes the heat transfer through setting up of heat insulating board produces the isolation with the hot water of new injection, avoid the heat loss, and through the setting of shutoff subassembly in the thermal-insulated through-hole, make play water intracavity hot water promote the spring shrink and then produce the rivers passageway by the pressure influence by the shutoff ball side after having extracted, both avoided newly injecting into cold water to thermal influence, can guarantee again that the heat exchanger is incessant to last the heat transfer and guarantee the heat transfer effect, and through the setting of the intraductal heat absorption tubule of intaking, increase and rock stratum contact time, further improve heat absorption efficiency, whole exploitation heat transfer effect has been guaranteed to this device, and geothermal exploitation efficiency has been improved greatly, further increased geothermal development's whole income, have extensive popularization meaning.

Drawings

Fig. 1 is a schematic view of the overall structure of the geothermal heat collecting device of the present invention;

fig. 2 is a schematic structural view of a plugging component of the geothermal collecting device of the present invention;

fig. 3 is a schematic structural view of the water inlet pipe of the geothermal collecting device of the present invention.

The heat-insulation device comprises a water inlet pipe 1, a water inlet pipe 2, a water outlet pipe 3, a heat exchanger 4, a heat insulation plate 5, a water injection cavity 6, a water outlet cavity 7, a heat insulation through hole 8, a plugging component 9, a plugging ring 10, a plugging ball 11, a fixing rod 12, a spring 13, a heat absorption tubule 14, a water dispersion cavity 15 and a heat insulation coating.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1-3, the geothermal heat collecting device of the utility model comprises a water inlet pipe 1, a water outlet pipe 2 and a heat exchanger 3, the heat exchanger 3 is arranged at the bottom of a geothermal well, the heat exchanger 3 is arranged in a hollow cavity, a heat insulation plate 4 is vertically arranged in the heat exchanger 3, the heat exchanger 3 is divided into a water injection cavity 5 and a water outlet cavity 6 by the heat insulation plate 4, the water inlet pipe 1 is arranged on the water injection cavity 5, the water outlet pipe 2 is arranged on the water outlet cavity 6, the heat insulation plate 4 is provided with a heat insulation through hole 7, a plugging component 8 is arranged in the heat insulation through hole 7, the plugging component 8 comprises a plugging ring 9, a plugging ball 10, a fixing rod 11 and a spring 12, the plugging ring 9 is arranged at one side of the heat insulation through hole 7 close to the water injection cavity 5, the fixed rod 11 is arranged at one side of the heat insulation through hole 7 close to the water outlet cavity 6, the spring 12 is arranged on the fixing rod 11, and the blocking ball 10 is arranged on the other side of the spring 12.

Wherein, be equipped with heat absorption tubule 13 in the 1 wall of inlet tube, heat absorption tubule 13 is even circumference formula along 1 inner wall of inlet tube and arranges, be equipped with the scattered water cavity 14 on the inlet tube 1, heat absorption tubule 13 link up with scattered water cavity 14 and water injection chamber 5 mutually, 4 both sides of heat insulating board are equipped with thermal barrier coating 15, shutoff ring 9 and shutoff ball 10 adopt the rubber material.

During the specific use, the staff pours into cold water from scattered water cavity 14, rivers enter water injection cavity 5 along heat absorption tubule 13, the in-process absorbs the heat from between the stratum, after water injection cavity 5 is filled up, receive pressure to press the influence shutoff ball 10 and the separation of shutoff ring 9, spring 12 is compressed, produce the water circulation hole, rivers flow into out water cavity 6 from water injection cavity 5, this in-process rivers still absorb the heat from between the stratum, rivers in going out water cavity 6 can directly be followed outlet pipe 2 and extracted the utilization, shutoff ball 10 receives the elasticity of spring 12 and shutoff ring 9 will insulate against heat the through-hole 7 shutoff, can continue incessant injection cold water in scattered water cavity 14 simultaneously, last heat transfer process, heat exchange efficiency has been improved greatly.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims

1. A geothermal collection device, characterized in that: including inlet tube, outlet pipe and heat exchanger, the heat exchanger sets up in the geothermal well bottom, the heat exchanger is the cavity setting, the vertical heat insulating board that is equipped with in the heat exchanger, the heat insulating board separates the heat exchanger for water injection chamber and play water cavity, the inlet tube is located on the water injection chamber, the outlet pipe is located on the water cavity, thermal-insulated through-hole on the heat insulating board, be equipped with the shutoff subassembly in the thermal-insulated through-hole, the shutoff subassembly includes shutoff ring, shutoff ball, dead lever and spring, the shutoff ring is located and is close to water injection chamber one side in the thermal-insulated through-hole, the dead lever is located and is close to play water cavity one side in the thermal-insulated through-.

2. A geothermal collecting device according to claim 1, wherein: be equipped with the heat absorption tubule in the inlet tube wall, the heat absorption tubule is even circumference formula arrangement along the inlet tube inner wall.

3. A geothermal collecting device according to claim 2, wherein: the water inlet pipe is provided with a water dispersion cavity, and the heat absorption thin pipe is communicated with the water dispersion cavity and the water injection cavity.

4. A geothermal collecting device according to claim 1, wherein: and heat insulation coatings are arranged on two sides of the heat insulation plate.

5. A geothermal collecting device according to claim 1, wherein: the plugging ring and the plugging ball are made of rubber materials.