Waterproof and anti-corrosion heat exchanger in middle-deep layer geothermal heat exchange well

Abstract

The utility model discloses a waterproof anticorrosion heat exchanger in a middle-deep layer geothermal heat exchange well, which comprises a heat exchanger body, a water inlet pipeline is arranged at one end of the heat exchanger body, a filter box is arranged on the water inlet pipeline, and a coarse filter plate and a fine filter plate are respectively arranged in the filter box; one end of the heat exchange pipeline is connected with a water storage block, a water outlet pipeline is installed on one side of the water storage block, and sealing rubber rings are installed at one end of the water inlet pipeline and one end of the water outlet pipeline. Compared with an existing device, the waterproof and anti-corrosion heat exchanger in the middle-deep layer geothermal heat exchange well has the advantages that liquid entering from the water inlet pipeline can be filtered through the coarse filter plate and the fine filter plate in the filter box, so that impurities in water can be removed, the impurities in the water are prevented from being attached to the interior of the pipeline and corroding the pipeline, and the service life of the pipeline is prolonged. The sealing rubber rings can improve the connection tightness between the water inlet pipeline and the heat exchanger body and between the water outlet pipeline and the water storage block, and therefore the waterproof performance of the heat exchanger can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a waterproof and corrosion-resistant heat exchanger in a medium-deep geothermal heat exchange well. Background Art

[0002] The underground heat exchanger is a heat exchanger that only flows one medium, that is, relatively clean cold water to be heated. Its heating medium, that is, geothermal water, is always in the geothermal well outside the heat exchanger. It can be used for heating small-scale households as well as medium-sized public buildings such as schools.

[0003] The Chinese patent with the authorization publication number CN216384651U discloses an underground heat exchanger for geothermal wells, including a ground, a well channel is opened at the bottom of the ground, a filtering mechanism is arranged at the top of the well channel, a heat exchange mechanism is arranged at the bottom of the well channel, an air outlet mechanism is arranged in the middle of the well channel, and the heat exchange mechanism includes a fixing frame, a bucket tube, a heat exchange tube, a fin, a bend tube, a spring tube, a straight tube and a bottom groove, and the fixing frame is fixedly connected to the left side of the well channel near the bottom. In the underground heat exchanger for geothermal wells, cold air enters the well channel at the bottom of the well cover through an air port, a heat exchange tube and a fin are arranged in the bucket tube, and the hot air outside the bucket tube passes through the heat exchange tube, and the heat is dissipated in the bucket tube through the fins, and the cold air entering the bucket tube is heated for the first time, and then the preheated air flow passes through the bend tube to enter the spring tube, so that the air flow stays longer, and then rises from the bottom of the spring tube through the straight tube to the air outlet pipe, and finally discharged through the air outlet pipe.

[0004] Although the heat exchanger mentioned above can make the airflow stay longer, it lacks a cleaning structure. Since there are many impurities in the groundwater in the geothermal well, the surface of the heat exchanger is prone to scaling during use, resulting in reduced working efficiency of the heat exchanger. For this reason, we propose a waterproof and anti-corrosion heat exchanger for medium-deep geothermal heat exchange wells. Utility Model Content

[0005] The purpose of the utility model is to provide a waterproof and corrosion-resistant heat exchanger for medium-deep geothermal heat exchange wells, so as to solve the problem raised in the above background technology that due to the lack of a cleaning structure on the heat exchanger and the large amount of impurities in the groundwater in the geothermal well, the surface of the heat exchanger is prone to scaling during use, resulting in reduced working efficiency of the heat exchanger.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a waterproof and anti-corrosion heat exchanger in a medium-deep geothermal heat exchange well, comprising:

[0007] A heat exchanger body, wherein a water inlet pipe is installed at one end of the heat exchanger body, and a filter box is installed on the water inlet pipe, a coarse filter plate and a fine filter plate are installed inside the filter box, and a packaging plate is installed at one end of the filter box;

[0008] A heat exchange pipe is installed at the other end of the heat exchanger body, one end of the heat exchange pipe is connected to a water storage block, and a water outlet pipe is installed on one side of the water storage block, a lifting pump is installed on the water outlet pipe, and one end of the water inlet pipe and the water outlet pipe are both installed with sealing rubber rings;

[0009] A movable plate is installed on the outer side of the heat exchange pipe, and a scraper is provided at the connection between the movable plate and the heat exchange pipe.

[0010] Preferably, the water inlet pipe is interconnected with the heat exchanger body through the filter box, the coarse filter plate and the fine filter plate are parallel to each other, and the coarse filter plate is a hollow mesh structure.

[0011] Preferably, the heat exchanger body forms a communication structure with the water outlet pipe through the heat exchange pipe and the water storage block, and the water inlet pipe and the water outlet pipe are connected to the heat exchanger body and the water storage block respectively through sealing rubber rings.

[0012] Preferably, the heat exchange pipe runs through the interior of the scraper, and the scraper is fixedly connected to the movable plate.

[0013] Preferably, the movable plate is further provided with:

[0014] A transmission nut seat is installed below the movable plate. A threaded screw is installed inside the transmission nut seat, and one end of the threaded screw is connected to a driving motor.

[0015] Preferably, a rotating structure is formed between the driving motor and the threaded screw, and the threaded screw passes through the interior of the transmission nut seat.

[0016] Preferably, the packaging plate is slidably engaged with the filter box via a slide groove, and both the coarse filter plate and the fine filter plate are detachably connected to the filter box.

[0017] Compared with the prior art, the utility model provides a waterproof and anti-corrosion heat exchanger in a medium-deep geothermal heat exchange well, which has the following beneficial effects:

[0018] The utility model can filter the liquid entering through the water inlet pipe through the coarse filter plate and the fine filter plate in the filter box, so as to remove impurities in the water and prevent the impurities in the water from adhering to the pipe and corroding the pipe. The sealing rubber ring can improve the tightness of the connection between the water inlet pipe and the heat exchanger body and the water outlet pipe and the water storage block, so as to improve the waterproof performance of the heat exchanger and avoid the problem of lack of cleaning structure on the heat exchanger. Due to the large amount of impurities in the groundwater in the geothermal well, the surface of the heat exchanger is prone to scaling during use, resulting in reduced working efficiency of the heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0021] Figure 3 It is a side view structural schematic diagram of the movable plate of the utility model;

[0022] Figure 4 This is a schematic diagram of the external structure of the filter box of the utility model.

[0023] In the figure: 1. heat exchanger body; 2. water inlet pipe; 3. filter box; 4. coarse filter plate; 5. fine filter plate; 6. sealing rubber ring; 7. heat exchange pipe; 8. water storage block; 9. water outlet pipe; 10. lifting pump; 11. moving plate; 12. transmission nut seat; 13. threaded screw; 14. driving motor; 15. scraper; 16. packaging plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-3 A waterproof and anti-corrosion heat exchanger for a medium-deep geothermal heat exchange well comprises: a heat exchanger body 1, a water inlet pipe 2 is installed at one end of the heat exchanger body 1, and a filter box 3 is installed on the water inlet pipe 2, and a coarse filter plate 4 and a fine filter plate 5 are installed inside the filter box 3 respectively; the water inlet pipe 2 is connected to the heat exchanger body 1 through the filter box 3, the coarse filter plate 4 and the fine filter plate 5 are parallel to each other, and the coarse filter plate 4 is a hollow mesh structure; the coarse filter plate 4 and the fine filter plate 5 in the filter box 3 can filter the liquid entering from the water inlet pipe 2, so as to remove impurities in the water and prevent impurities in the water from adhering to the pipe and corroding the pipe; a heat exchange pipe 7 is installed at the other end of the heat exchanger body 1, and the heat exchange pipe 7 is installed at the other end of the heat exchanger body 1. One end of the pipe 7 is connected to a water storage block 8, and a water outlet pipe 9 is installed on one side of the water storage block 8, a lifting pump 10 is installed on the water outlet pipe 9, and one end of the water inlet pipe 2 and the water outlet pipe 9 are both installed with a sealing rubber ring 6; the heat exchanger body 1 forms a connecting structure with the water outlet pipe 9 through the heat exchange pipe 7 and the water storage block 8, and the water inlet pipe 2 and the water outlet pipe 9 are respectively connected to the heat exchanger body 1 and the water storage block 8 through the sealing rubber ring 6; the cold water flows into the water storage block 8 after circulating in the heat exchange pipe 7, and the cold water in the pipe can be heat exchanged with the hot water outside the pipe. The sealing rubber ring 6 can improve the connection tightness between the water inlet pipe 2 and the heat exchanger body 1 and the water outlet pipe 9 and the water storage block 8, thereby improving the waterproof performance of the heat exchanger.

[0026] See also Figure 1 , 3 4. A waterproof and anti-corrosion heat exchanger in a medium-deep geothermal heat exchange well, comprising: a movable plate 11, which is installed on the outside of a heat exchange pipe 7, and a scraper 15 is provided at the connection between the movable plate 11 and the heat exchange pipe 7; the heat exchange pipe 7 runs through the inside of the scraper 15, and the scraper 15 is fixedly connected to the movable plate 11; a transmission nut seat 12, which is installed below the movable plate 11, and a threaded screw 13 is installed inside the transmission nut seat 12, and one end of the threaded screw 13 is connected to a driving motor 14; a rotating structure is formed between the driving motor 14 and the threaded screw 13, and the threaded screw 13 runs through the transmission nut seat 12. Inside; the driving motor 14 can drive the threaded screw 13 to rotate, and the rotating threaded screw 13 can horizontally transmit the transmission nut seat 12 and the movable plate 11. When the movable plate 11 moves, it can rub against the heat exchange pipe 7, so that the outer wall of the heat exchange pipe 7 can be cleaned to prevent scale deposition; a packaging plate 16 is installed at one end of the filter box 3; the packaging plate 16 is slidably engaged with the filter box 3 through a slide groove, and the coarse filter plate 4 and the fine filter plate 5 are detachably connected to the filter box 3; the packaging plate 16 can facilitate opening the filter box 3, so that the coarse filter plate 4 and the fine filter plate 5 can be disassembled and replaced.

[0027] Working principle: When using the waterproof and anti-corrosion heat exchanger in the deep geothermal heat exchange well, firstly, the tightness of the connection between the water inlet pipe 2 and the heat exchanger body 1 and the water outlet pipe 9 and the water storage block 8 is improved by the sealing rubber ring 6, so as to improve the waterproof performance of the heat exchanger. Cold water is passed into the water inlet pipe 2, and the liquid entering from the water inlet pipe 2 can be filtered through the coarse filter plate 4 and the fine filter plate 5 in the filter box 3, so as to remove impurities in the water and prevent impurities in the water from adhering to the pipe and corroding the pipe; secondly, the cold water flows into the heat exchange pipe 7 through the heat exchanger body 1, and then the lifting pump 10 is started to pump the cold water to the water storage block 8 and the water outlet pipe 9, when cold water circulates in the heat exchange pipe 7, the hot water outside the pipe exchanges heat with the cold water in the pipe; then the drive motor 14 is started regularly, and the drive motor 14 drives the threaded screw 13 to rotate, and the rotating threaded screw 13 transmits the transmission nut seat 12 and the movable plate 11 in the horizontal direction. When the movable plate 11 moves, it can rub against the heat exchange pipe 7, so that the outer wall of the heat exchange pipe 7 can be cleaned to prevent scale deposition; finally, the packaging plate 16 is moved down regularly, the filter box 3 is opened, and the coarse filter plate 4 and the fine filter plate 5 are disassembled and replaced. This is the working principle of the heat exchanger in the waterproof and corrosion-resistant medium-deep geothermal heat exchange well.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A waterproof and anti-corrosion heat exchanger in a medium-deep geothermal heat exchange well, characterized in that: include: A heat exchanger body (1), wherein a water inlet pipe (2) is installed at one end of the heat exchanger body (1), and a filter box (3) is installed on the water inlet pipe (2), a coarse filter plate (4) and a fine filter plate (5) are installed inside the filter box (3), and a packaging plate (16) is installed at one end of the filter box (3); a heat exchange pipe (7) installed at the other end of the heat exchanger body (1); one end of the heat exchange pipe (7) is connected to a water storage block (8); a water outlet pipe (9) is installed on one side of the water storage block (8); a lifting pump (10) is installed on the water outlet pipe (9); and one end of each of the water inlet pipe (2) and the water outlet pipe (9) is installed with a sealing rubber ring (6); A movable plate (11) is installed on the outside of the heat exchange pipe (7), and a scraper (15) is provided at the connection between the movable plate (11) and the heat exchange pipe (7).

2. The waterproof and anti-corrosion heat exchanger in a medium-deep geothermal heat exchange well according to claim 1, characterized in that: The water inlet pipe (2) is connected to the heat exchanger body (1) through the filter box (3); the coarse filter plate (4) and the fine filter plate (5) are parallel to each other, and the coarse filter plate (4) is a hollow mesh structure.

3. The waterproof and anti-corrosion heat exchanger in a medium-deep geothermal heat exchange well according to claim 1, characterized in that: The heat exchanger body (1) forms a communication structure with the water outlet pipe (9) through the heat exchange pipe (7) and the water storage block (8), and the water inlet pipe (2) and the water outlet pipe (9) are respectively connected to the heat exchanger body (1) and the water storage block (8) through the sealing rubber ring (6).

4. The waterproof and anti-corrosion heat exchanger in a medium-deep geothermal heat exchange well according to claim 1, characterized in that: The heat exchange pipe (7) passes through the interior of the scraper (15), and the scraper (15) is fixedly connected to the moving plate (11).

5. The waterproof and anti-corrosion heat exchanger in a medium-deep geothermal heat exchange well according to claim 1, characterized in that: The movable plate (11) is also provided with: A transmission nut seat (12) is installed below the movable plate (11), a threaded screw rod (13) is installed inside the transmission nut seat (12), and one end of the threaded screw rod (13) is connected to a driving motor (14).

6. The waterproof and anti-corrosion heat exchanger in a medium-deep geothermal heat exchange well according to claim 5, characterized in that: A rotating structure is formed between the driving motor (14) and the threaded screw (13), and the threaded screw (13) penetrates the interior of the transmission nut seat (12).

7. The waterproof and anti-corrosion heat exchanger in a medium-deep geothermal heat exchange well according to claim 1, characterized in that: The packaging plate (16) is connected to the filter box (3) by sliding engagement via a slide groove, and both the coarse filter plate (4) and the fine filter plate (5) are detachably connected to the filter box (3).

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