Closed type middle-deep layer geothermal energy underground heat exchange device

Abstract

The utility model provides a closed type middle-deep layer geothermal energy underground heat exchange device, which belongs to the technical field of geothermal energy heat exchange, and comprises a heat exchange unit and a main body mechanism used for installing the heat exchange unit, the main body mechanism comprises a heat exchange support, a clamping component and a driving component, and the upper surface of the heat exchange support is used for installing the heat exchange unit; the clamping component is arranged at the upper end of the heat exchange bracket; the driving component is connected with the clamping component and used for driving the clamping component to clamp or loosen the heat exchange unit. When components of the heat exchange unit are damaged, the clamping component can be loosened through the driving component to fix the heat exchange unit, the heat exchange unit can be conveniently disassembled for maintenance and replacement, the disassembling and assembling efficiency can be improved, and the practicability of the closed type medium-deep layer geothermal energy underground heat exchange device is improved.

Description

Technical Field

[0001] This utility model belongs to the field of geothermal energy heat exchange technology, and more specifically, relates to a closed-type medium-deep geothermal energy downhole heat exchange device. Background Technology

[0002] Geothermal energy is natural heat energy extracted from the Earth's crust. This energy comes from the Earth's internal lava and exists in the form of heat. Downhole geothermal energy is divided into three categories: high temperature, medium temperature, and low temperature. High temperature geothermal energy exists in the form of steam above 150℃; medium temperature geothermal energy exists in the form of a mixture of water and steam between 90℃ and 150℃; and low temperature geothermal energy exists in the form of warm water, warm hot water, or hot water between 25℃ and 90℃. Downhole heat exchange devices can convert geothermal energy into energy needed for production activities. They generally include a unit consisting of a compressor, separator, and evaporator, as well as a support frame that is fixedly installed with the unit.

[0003] Chinese utility model patent CN215412589U discloses a medium-deep geothermal energy downhole heat exchange device, including a heat exchange unit and a heat exchange support. A fixed leg is fixedly connected to one side of the bottom of the heat exchange support, and a movable leg is rotatably connected to the other side of the bottom of the heat exchange support. A screw is rotatably embedded inside the heat exchange support, and a threaded sleeve is threaded onto the outer surface of the screw. An L-shaped clamp is fixedly connected to the bottom of the threaded sleeve via a short shaft. A limiting groove is formed on the outer surface of one end of the movable leg, which can engage with the end of the L-shaped clamp. In this medium-deep geothermal energy downhole heat exchange device, the support structure composed of the heat exchange support, fixed leg, and movable leg can be converted into a single-leg structure during installation and a double-leg structure during transfer to facilitate stable transfer of the support. The support structure allows for switching between different functional structures by rotating the movable leg to a horizontal or vertical position, and the fixed method of the movable leg after rotation ensures structural stability and ease of operation.

[0004] In the aforementioned existing technology, the heat exchange unit of the medium-deep geothermal energy downhole heat exchange device is fixedly installed on the heat exchange bracket. When the components of the unit are damaged and need to be repaired, it is inconvenient to disassemble the components, which reduces the efficiency of maintenance. Utility Model Content

[0005] The purpose of this utility model is to provide a closed-type downhole heat exchange device for medium-deep geothermal energy, in order to solve the problem in the above-mentioned background technology that the heat exchange unit of the downhole heat exchange device for medium-deep geothermal energy is fixedly installed on the heat exchange support, and it is inconvenient to disassemble the components when the components of the unit are damaged and need to be repaired, which reduces the efficiency of maintenance.

[0006] In order to achieve the above object, the utility model provides a closed middle -deep geothermal energy downhole heat exchange device, including heat exchange unit and a plurality of for installing the main body mechanism of heat exchange unit, the main body mechanism includes:

[0007] Heat exchange support, the upper surface of heat exchange support is used for installing heat exchange unit;

[0008] Clamping part, the clamping part is arranged on the upper end of heat exchange support;

[0009] Driving part, the driving part is connected with clamping part, is used for driving clamping part clamping or loosening heat exchange unit.

[0010] Optionally, the closed middle -deep geothermal energy downhole heat exchange device further includes:

[0011] Moving mechanism, the upper end of moving mechanism is fixedly connected to the lower surface of heat exchange support, and the lower end of moving mechanism is used to contact ground to support main body mechanism.

[0012] Optionally, the lower end of moving mechanism is provided with a plurality of universal wheels.

[0013] Optionally, the moving mechanism further includes: a plurality of support legs and a plurality of sleeves are arranged in pairs;

[0014] The upper end of the support leg is fixedly installed on the lower surface of the heat exchange support;

[0015] The sleeve is sleeved on the lower end of the support leg, the universal wheel is arranged on the lower end of the sleeve, the cylinder wall of the sleeve is provided with a screw hole, a tightening bolt is arranged in the screw hole, and the tightening bolt is used to lock the sleeve and the support leg.

[0016] Optionally, a shock absorber is arranged between the universal wheel and the sleeve.

[0017] Optionally, the closed middle -deep geothermal energy downhole heat exchange device further includes: a fixing mechanism for fixing the main body mechanism to the wall surface.

[0018] Optionally, the fixing mechanism includes:

[0019] Fixed seat, the fixed seat is fixedly installed on the lower end of the heat exchange support;

[0020] Expansion bolt, the expansion bolt is arranged in the bolt hole of the fixed seat, and is used to penetrate into the wall surface.

[0021] Optionally, the upper end of the heat exchange support is provided with a groove;

[0022] The driving component comprises a bidirectional screw rod, a first screw block, a second screw block and a motor, the motor is fixedly installed in the groove, the bidirectional screw rod is arranged in the groove and connected with an output shaft of the motor, and the first screw block and the second screw block are oppositely arranged at two ends of the bidirectional screw rod.

[0023] The clamping component comprises oppositely arranged first and second fixed clamping plates, the first fixed clamping plate is fixedly connected to the upper end of the first screw block, and the second fixed clamping plate is fixedly installed at the upper end of the second screw block.

[0024] Optionally, the clamping surface of the first fixed clamping plate is provided with a first buffer pad.

[0025] The clamping surface of the second fixed clamping plate is provided with a second buffer pad.

[0026] The beneficial effects of the utility model lie in: provide a closed type middle deep layer geothermal energy well heat exchanger, including heat exchanger unit and be used for installing heat exchanger unit's main body mechanism, main body mechanism includes: heat exchange support, clamping component and driving component, heat exchange support upper surface is used for installing heat exchanger unit;Clamping component sets up at heat exchange support upper end;Driving component is connected with clamping component, is used for driving clamping component clamping or loosening heat exchanger unit.When heat exchanger unit component is damaged, can loosen the fixation of heat exchanger unit through driving component to clamping component, facilitate heat exchanger unit to be dismantled and maintain replacement, can promote the efficiency of dismounting, improved the practicality of closed type middle deep layer geothermal energy well heat exchanger.

[0027] Other features and advantages of the utility model will be described in detail in the subsequent specific embodiment part. BRIEF DESCRIPTION OF DRAWINGS

[0028] The above and other objects, features and advantages of the present utility model will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings, in which like reference characters refer to like parts throughout the several views, and wherein the exemplary embodiments of the present utility model are shown.

[0029] Figure 1 Fig. 1 shows a schematic structural view of a closed type middle deep layer geothermal energy well heat exchanger according to an embodiment of the present utility model.

[0030] Figure 2 Fig. 2 shows another schematic structural view of a closed type middle deep layer geothermal energy well heat exchanger according to an embodiment of the present utility model.

[0031] Figure 3 Fig. 3 shows a schematic structural view of a fixing mechanism according to an embodiment of the present utility model.

[0032] Figure 4 A partial schematic structural view of a moving mechanism according to an embodiment of the present application is shown.

[0033] Legend of reference signs:

[0034] 1, main body mechanism; 101, heat exchange support; 102, heat exchange unit; 103, motor; 104, bidirectional screw rod; 105, first screw block; 106, first fixed clamping plate; 107, second screw block; 108, second fixed clamping plate; 109, first buffer pad; 110, second buffer pad; 2, moving mechanism; 201, support leg; 202, sleeve; 203, screw hole; 204, tightening bolt; 205, shock absorber; 206, universal wheel; 3, fixing mechanism; 301, fixing seat; 302, expansion bolt. DETAILED DESCRIPTION

[0035] The preferred embodiments of the present application will be described in more detail below. Although the preferred embodiments of the present application are described below, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present application is more complete and complete, and the scope of the present application is fully conveyed to those skilled in the art.

[0036] The present embodiment provides a closed type middle-deep geothermal energy downhole heat exchange device, which comprises a heat exchange unit 102 and a main body mechanism 1 for installing the heat exchange unit 102, and the main body mechanism 1 comprises:

[0037] A heat exchange support 101, the upper surface of the heat exchange support 101 is used for installing the heat exchange unit 102;

[0038] A clamping component, which is arranged at the upper end of the heat exchange support 101;

[0039] A driving component, which is connected with the clamping component and is used for driving the clamping component to clamp or release the heat exchange unit 102.

[0040] Specifically, in the use process of the closed type middle-deep geothermal energy downhole heat exchange device, when the heat exchange unit 102 component is damaged, the clamping component can be released by the driving component to fix the heat exchange unit 102, so that the heat exchange unit 102 can be easily disassembled and repaired or replaced, which can improve the disassembly efficiency and improve the practicality of the closed type middle-deep geothermal energy downhole heat exchange device.

[0041] Optionally, the closed type middle-deep geothermal energy downhole heat exchange device further comprises:

[0042] A moving mechanism 2, the upper end of the moving mechanism 2 is fixedly connected to the lower surface of the heat exchange support 101, and the lower end of the moving mechanism 2 is used for contacting the ground to support the main body mechanism 1.

[0043] Optionally, the lower end of the moving mechanism 2 is provided with a plurality of universal wheels 206.

[0044] Specifically, through the installation of the moving mechanism 2, the heat exchange unit 102 is driven by the universal wheels 206 to move, which facilitates the movement of the heat exchange unit 102 to the installation site.

[0045] Optionally, the moving mechanism 2 further comprises: a plurality of supporting legs 201 and a plurality of sleeves 202 arranged in pairs;

[0046] The upper end of the supporting leg 201 is fixedly installed on the lower surface of the heat exchange support 101;

[0047] The sleeve 202 is sleeved on the lower end of the supporting leg 201, the universal wheel 206 is arranged at the lower end of the sleeve 202, the cylinder wall of the sleeve 202 is provided with a threaded hole 203, and a tightening bolt 204 is arranged in the threaded hole 203, which is used to lock the sleeve 202 and the supporting leg 201.

[0048] Specifically, when installing the heat exchange unit 102, the tightening bolt 204 can be unscrewed from the threaded hole 203, so that the tightening bolt 204 is loosened to fix the supporting leg 201, so that the sleeve 202 is removed, and the heat exchange support 101 is changed into a single leg structure for installation, thereby improving the convenience of the closed middle-deep geothermal energy well heat exchange device.

[0049] Optionally, a shock absorber 205 is arranged between the universal wheel 206 and the sleeve 202.

[0050] Specifically, the shock absorber 205 can reduce the vibration during movement and avoid damage to the heat exchange unit 102.

[0051] Optionally, the closed middle-deep geothermal energy well heat exchange device further comprises: a fixing mechanism 3 for fixing the main body mechanism 1 to the wall surface.

[0052] Optionally, the fixing mechanism 3 comprises:

[0053] The fixing seat 301 is fixedly installed at the lower end of the heat exchange support 101;

[0054] The expansion bolt 302 is arranged in the bolt hole of the fixing seat 301 and is used to penetrate into the wall surface.

[0055] Specifically, the closed middle-deep geothermal energy well heat exchange device, through the fixing mechanism 3, realizes the fixing of the fixing seat 301 on the wall surface in the heat exchange well through the expansion bolt 302, thereby installing and fixing the heat exchange device, and improves the stability of the closed middle-deep geothermal energy well heat exchange device.

[0056] Optionally, a groove is arranged at the upper end of the heat exchange support 101;

[0057] The driving component comprises a bidirectional screw rod 104, a first screw block 105, a second screw block 107 and a motor 103. The motor 103 is fixedly installed in the groove, the bidirectional screw rod 104 is arranged in the groove and connected with the output shaft of the motor 103, and the first screw block 105 and the second screw block 107 are oppositely arranged at the two ends of the bidirectional screw rod 104.

[0058] The clamping component comprises oppositely arranged first and second fixed clamping plates 106 and 108. The first fixed clamping plate 106 is fixedly connected with the upper end of the first screw block 105, and the second fixed clamping plate 108 is fixedly installed at the upper end of the second screw block 107.

[0059] Specifically, during the use of the heat exchange device, when the component is damaged, the motor 103 can be started to drive the bidirectional screw rod 104 to rotate, and the positions of the first screw block 105 and the second screw block 107 are adjusted by the bidirectional screw rod 104, so that the first screw block 105 moves to the left and the second screw block 107 moves to the right, thereby loosening the fixation of the first and second fixed clamping plates 106 and 108 on the unit, facilitating the disassembly and maintenance of the unit.

[0060] Optionally, the clamping surface of the first fixed clamping plate 106 is provided with a first buffer pad 109.

[0061] The clamping surface of the second fixed clamping plate 108 is provided with a second buffer pad 110.

[0062] Specifically, the first and second buffer pads 109 and 110 can play a buffering role and protect the heat unit 102.

[0063] In this embodiment, the working principle and use method of the closed-type downhole heat exchange device of the middle-deep geothermal energy well are as follows:

[0064] The heat exchange unit 102 is moved to the installation site by the universal wheel 206, the shock absorber 205 reduces the vibration during movement, avoids damage to the heat exchange unit 102, the tightening bolt 204 can be unscrewed from the screw hole 203 during installation of the heat exchange unit 102, the tightening bolt 204 is loosened to fix the support leg 201, the sleeve 202 is removed, the heat exchange support 101 is changed into a single-leg structure for installation, the fixed seat 301 is fixed on the wall surface in the heat exchange well through the installation of the expansion bolt 302, and the heat exchange device is installed and fixed, during use of the heat exchange device, when a part is damaged, the motor 103 can be started, the motor 103 drives the bidirectional screw rod 104 to rotate, the screw block position is adjusted through the bidirectional screw rod 104, the first screw block 105 moves to the left, the second screw block 107 moves to the right, the first fixed clamping plate 106 and the second fixed clamping plate 108 are loosened to fix the unit, and the unit is conveniently disassembled for maintenance and replacement.

[0065] The above has described the embodiments of the utility model, the above description is exemplary, is not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without deviating from the scope and spirit of the described embodiments.

Claims

1. A closed type downhole heat exchanger for medium-deep geothermal energy wells, comprising a heat exchanger unit (102) and a main body mechanism (1) for mounting the heat exchanger unit (102), characterized in that, The main body mechanism (1) comprises: A heat exchange support (101) with an upper surface for mounting the heat exchange unit (102); A clamping component provided at the upper end of the heat exchange support (101); A driving component connected with the clamping component for driving the clamping component to clamp or release the heat exchange unit (102).

2. The closed-type downhole heat exchanger for medium-depth geothermal energy according to claim 1, characterized in that, Further comprising: A moving mechanism (2) with an upper end fixedly connected to the lower surface of the heat exchange support (101) and a lower end for contacting the ground to support the main body mechanism (1).

3. The downhole heat exchanger for a closed-loop geothermal well according to claim 2, wherein, A plurality of universal wheels (206) are provided at the lower end of the moving mechanism (2).

4. The downhole heat exchanger for a closed-loop geothermal energy well of claim 3, wherein, The moving mechanism (2) further comprises: a plurality of support legs (201) and a plurality of sleeves (202) arranged in pairs; The upper end of the support leg (201) is fixedly mounted on the lower surface of the heat exchange support (101); The sleeve (202) is sleeved on the lower end of the support leg (201), the universal wheel (206) is arranged at the lower end of the sleeve (202), the sleeve (202) is provided with a threaded hole (203) in the sleeve wall, a tightening bolt (204) is arranged in the threaded hole (203), and the tightening bolt (204) is used to lock the sleeve (202) and the support leg (201).

5. The downhole heat exchanger for a closed-loop geothermal energy well of claim 4, wherein, A shock absorber (205) is arranged between the universal wheel (206) and the sleeve (202).

6. The closed type downhole heat exchanger for medium-deep geothermal energy according to claim 1, characterized in that, Further comprising: A fixing mechanism (3) for fixing the main body mechanism (1) to the wall surface.

7. The downhole heat exchanger for a closed-loop geothermal well according to claim 6, wherein, The fixing mechanism (3) comprises: A fixing seat (301) fixedly mounted at the lower end of the heat exchange support (101); An expansion bolt (302) arranged in the bolt hole of the fixing seat (301) for penetrating into the wall surface.

8. The closed middle-deep geothermal energy downhole heat exchange device according to claim 1, wherein A recess is provided at the upper end of the heat exchange support (101); The driving component comprises: a bidirectional screw rod (104), a first screw block (105), a second screw block (107) and an electric motor (103), the electric motor (103) is fixedly mounted in the recess, the bidirectional screw rod (104) is arranged in the recess and connected with the output shaft of the electric motor (103), and the first screw block (105) and the second screw block (107) are oppositely arranged at the two ends of the bidirectional screw rod (104); The clamping component comprises: a first fixed clamping plate (106) and a second fixed clamping plate (108) oppositely arranged, the first fixed clamping plate (106) is fixedly connected to the upper end of the first screw block (105), and the second fixed clamping plate (108) is fixedly mounted on the upper end of the second screw block (107).

9. The closed middle-deep geothermal energy downhole heat exchange device according to claim 8, wherein A first buffer pad (109) is arranged on the clamping surface of the first fixed clamping plate (106); A second buffer pad (110) is arranged on the clamping surface of the second fixed clamping plate (108).

Images