Anti-blocking heat exchanger in middle-deep layer geothermal heat exchange well

Abstract

The utility model discloses an anti-blocking heat exchanger in a middle-deep layer geothermal heat exchange well, which comprises a semicircular bent pipe, the two ends of the semicircular bent pipe are respectively connected with a transduction bent pipe assembly, and the end parts of the two transduction bent pipe assemblies are respectively connected with a liquid inlet pipe and a liquid outlet pipe; by means of the filter pipe, the inner frame, the filter screen plate, the brush bristle plate assembly and the turbine assembly, when transduction medium liquid is fed into the heat exchanger through the filter pipe, the transduction medium liquid enters the filter pipe, impurities and calcified substances mixed in the liquid are filtered through the filter screen plate, and therefore the liquid can be purified. The situation that blockage is caused due to the fact that impurities enter the device and calcium compounds enter the device and adhere to the inner wall of the pipe under the action of heat energy to generate scale is avoided, meanwhile, liquid impacts the turbine assembly, the turbine assembly drives the brush bristle plate assembly to rotate, the brush bristle plate assembly cleans the impurities left on the surface of the filter screen plate, and the service life of the filter screen plate is prolonged. And the filter screen plate is prevented from being blocked.

Description

Technical Field

[0001] The utility model belongs to the technical field of geothermal energy development, and in particular relates to a heat exchanger in a mid-deep geothermal heat exchange well which is anti-clogging. Background Art

[0002] At present, the method of utilizing medium and deep geothermal energy in my country is mainly to place the heat exchanger below the static water level or in dry hot rock without underground aquifers, and use heat conduction to realize the heat extraction of medium and deep geothermal water. A heat exchanger in a medium and deep geothermal heat exchange well with application number 202021182892.9 includes two No. 1 transducer tubes and a liquid pump, the bottom outer walls of the two No. 1 transducer tubes are fixedly connected with a U-shaped tube, and the bottom outer walls of the two U-shaped tubes are fixedly connected with a No. 2 transducer tube, the bottom outer walls of the two No. 2 transducer tubes are fixedly connected with the same semicircular elbow, the inner walls of the two No. 1 transducer tubes and the two No. 2 transducer tubes are fixedly connected with heat conduction plates at equal distances, and the outer wall of each heat conduction plate has liquid holes at equal distances. By providing a U-tube and a heat conducting plate, when the energy conversion medium is converted, the installation of the U-tube increases the indirect contact time between the energy conversion medium and the geothermal heat, thereby improving the heat exchange effect. At the same time, the installation of the heat conducting plate guides the external geothermal heat to the energy conversion medium, further increasing the heat exchange effect. The liquid holes on the heat conducting plate increase the contact area, thereby improving the heat exchange effect of the device.

[0003] The existing heat exchanger in the medium-deep geothermal heat exchange well is provided with a U-tube and a heat conduction plate. When the energy conversion medium is converted, the installation of the U-tube increases the indirect contact time between the energy conversion medium and the geothermal heat, thereby improving the heat exchange effect. At the same time, the installation of the heat conduction plate guides the external geothermal heat to the energy conversion medium, further increasing the heat exchange effect. The liquid holes on the heat conduction plate increase the contact area, thereby improving the heat exchange effect of the device. However, there are the following defects: (1) When the above-mentioned heat exchanger is in use, when the energy conversion medium liquid is sent into the pipeline of the heat exchanger for heat exchange treatment, the energy conversion medium is easily mixed with foreign matter during circulation, and the foreign matter is sent into the pipeline of the heat exchanger, which is easy to cause blockage. At the same time, when the energy conversion medium liquid enters the pipeline of the heat exchanger, the calcification in the energy conversion medium liquid adheres to the inner wall of the pipeline under the action of high temperature to produce scale, thereby causing blockage. For this reason, we propose a heat exchanger in the medium-deep geothermal heat exchange well that is anti-blocking. Utility Model Content

[0004] The purpose of the utility model is to provide a heat exchanger in a medium-deep geothermal heat exchange well that is resistant to clogging, so as to solve the problem that the heat exchanger in the medium-deep geothermal heat exchange well proposed in the above background technology is prone to clogging during use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heat exchanger in a medium-deep geothermal heat exchange well that is resistant to blockage, comprising a semicircular bend pipe, both ends of the semicircular bend pipe are respectively connected to a transducer bend pipe assembly, and the ends of the two transducer bend pipe assemblies are respectively connected to a liquid inlet pipe and a liquid discharge pipe, a filter pipe is fixed to the end of the liquid inlet pipe, a filter screen is fixed to the inside of the filter pipe, an inner frame is provided on the outside of the filter screen, the inner frame is fixed to the inner wall of the filter pipe, a rotating column is inlaid on the inner frame for rotation, a turbine assembly is fixed to one end of the rotating column, and a brush plate assembly is fixed to the other end of the rotating column.

[0006] Preferably, the bristle plate assembly consists of soft bristles and a plate body, and the soft bristles are embedded on the surface of the plate body.

[0007] Preferably, a storage tube is fixed on the surface of the filter tube by embedding, a terminal is connected to the bottom port of the storage tube by threading, and a sealing gasket is sleeved on the outer wall of one end of the terminal.

[0008] Preferably, a guide groove plate is provided at the top port of the impurity storage pipe, and the guide groove plate is fixed on the surface of the filter screen plate.

[0009] Preferably, a ball groove is provided on the surface of the rotating column, and a ball is embedded in the ball groove.

[0010] Preferably, ribs are respectively installed at both ends of the inner frame, and one end of the rib is fixed to the inner wall of the filter tube.

[0011] Preferably, the longitudinal section of the rotating column is a circular structure, and the cross section of the rotating column is a stem-shaped structure.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) Through the designed filter tube, inner frame, filter screen, brush plate assembly and turbine assembly, when the transducing medium liquid is sent into the heat exchanger through the filter tube, the transducing medium liquid enters the filter tube, and the impurities and calcifications mixed in the liquid are filtered and processed through the filter screen, so as to avoid the impurities entering the interior of the utility model and causing blockage, and the calcifications entering the interior of the utility model and adhering to the inner wall of the tube under the action of heat energy to produce scale and cause blockage. At the same time, the liquid impacts the turbine assembly, so that it drives the brush plate assembly to rotate, and the brush plate assembly cleans the impurities remaining on the surface of the filter screen plate, so as to avoid the filter screen plate causing blockage. Through the designed impurity storage pipe and end head, the impurity storage pipe is installed at the bottom of the filter tube, and the impurities cleaned fall into the impurity storage pipe for centralized collection. In addition, the end head can be screwed and disassembled to facilitate the centralized cleaning of the impurities later. Through the designed guide groove plate, the cleaned impurities fall on the guide groove plate and slide, so that the falling material is guided, ensuring that the impurities fall into the impurity storage pipe in a centralized manner, so as to facilitate the later waste discharge and cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the front view of the utility model;

[0015] Figure 2 This is a cross-sectional view of the structure of the filter tube of the utility model;

[0016] Figure 3 This is a side sectional view of the structure of the filter tube of the utility model;

[0017] Figure 4 This is a schematic diagram of the assembly of the guide groove plate of the utility model in the filter tube;

[0018] In the figure: 1. semicircular bend; 2. transducer bend tube assembly; 3. end; 4. sealing gasket; 5. storage tube; 6. filter tube; 7. liquid inlet tube; 8. liquid discharge tube; 9. rib plate; 10. rotating column; 11. brush plate assembly; 12. filter screen plate; 13. guide groove plate; 14. ball bearing; 15. inner frame; 16. turbine assembly. DETAILED DESCRIPTION

[0019] 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.

[0020] Example

[0021] See also Figures 1 to 4The utility model provides a technical solution: a heat exchanger in a medium-deep geothermal heat exchange well with anti-clogging, including a semicircular elbow 1, both ends of the semicircular elbow 1 are respectively connected with a transducer bent pipe assembly 2, and the ends of the two transducer bent pipe assemblies 2 are respectively connected with a liquid inlet pipe 7 and a liquid discharge pipe 8, a filter tube 6 is fixed to the end of the liquid inlet pipe 7, a filter screen plate 12 is fixed inside the filter tube 6, an inner frame 15 is arranged outside the filter screen plate 12, the inner frame 15 is fixed to the inner wall of the filter tube 6, a rotating column 10 is inlaid on the inner frame 15 through rotation, a turbine assembly 16 is fixed to one end of the rotating column 10, and a brush plate assembly 11 is fixed to the other end of the rotating column 10, through the designed filter tube 6, inner frame 15, filter screen plate 12. The bristle plate assembly 11 and the turbine assembly 16. When the transducing medium liquid is fed into the heat exchanger through the filter tube 6, the transducing medium liquid enters the filter tube 6, and the impurities and calcifications contained in the liquid are filtered through the filter mesh plate 12 to avoid the impurities from entering the interior of the utility model and causing blockage, and the calcifications from entering the interior of the utility model and adhering to the inner wall of the tube under the action of heat energy to produce scale and cause blockage. At the same time, the liquid impacts the turbine assembly 16, causing it to drive the bristle plate assembly 11 to rotate. The bristle plate assembly 11 cleans the impurities remaining on the surface of the filter mesh plate 12 to avoid blockage of the filter mesh plate 12. The bristle plate assembly 11 is composed of soft bristles and a plate body, and the soft bristles are embedded on the surface of the plate body.

[0022] In this embodiment, preferably, the surface of the filter tube 6 is fixed with a storage tube 5 by inlaying, and the bottom port of the storage tube 5 is connected with an end cap 3 by threading. Through the designed storage tube 5 and the end cap 3, the storage tube 5 is installed at the bottom of the filter tube 6, and the impurities cleaned up fall into the storage tube 5 for centralized collection. In addition, the end cap 3 can be screwed and disassembled to facilitate centralized cleaning of the impurities at a later time. A sealing gasket 4 is sleeved on the outer wall of one end of the end cap 3, and a guide groove plate 13 is provided at the top port of the storage tube 5. Through the designed guide groove plate 13, the cleaned impurities fall on the guide groove plate 13 and slide, so that the falling material is guided to ensure that the impurities fall into the storage tube 5 in a centralized manner, so as to facilitate the later waste discharge and cleaning. The guide groove plate 13 is fixed on the surface of the filter mesh plate 12.

[0023] In the present embodiment, preferably, a ball groove is opened on the surface of the rotating column 10, and a ball 14 is embedded in the ball groove. The designed ball 14 plays a lubricating role to prevent the rotating column 10 from being affected by the friction resistance between the surfaces of the rotating column 10 and the inner frame 15 when rotating. Ribs 9 are respectively installed at both ends of the inner frame 15. The inner frame 15 is assembled, fixed and reinforced by the designed ribs 9, and one end of the rib 9 is fixed to the inner wall of the filter tube 6. The longitudinal section of the rotating column 10 is a circular structure, and the cross-section of the rotating column 10 is a dry-shaped structure.

[0024] The working principle and use process of the utility model are as follows: when the transducing medium liquid of the utility model is sent into the heat exchanger through the filter tube 6, the transducing medium liquid enters the filter tube 6, and the impurities and calcifications mixed in the liquid are filtered through the filter screen plate 12 to prevent the impurities from entering the interior of the utility model and causing blockage, and the calcifications enter the interior of the utility model and adhere to the inner wall of the tube under the action of heat energy to produce scale and cause blockage. At the same time, the liquid impacts the turbine assembly 16, so that it drives the brush plate assembly 11 to rotate, and the brush plate assembly 11 cleans the impurities remaining on the surface of the filter screen plate 12, and the impurities and calcifications fall on the guide groove plate 13 to slide, so that the falling material is guided to ensure that the impurities fall into the impurity storage pipe 5 in a concentrated manner, avoiding the filter screen plate 12 from causing blockage, and the cleaned impurities fall into the impurity storage pipe 5 for centralized collection. In addition, the end head 3 can be screwed and disassembled to facilitate the centralized cleaning of the impurities at a later time.

[0025] 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 heat exchanger in a medium-deep geothermal heat exchange well that is resistant to clogging, comprising a semicircular elbow (1), both ends of the semicircular elbow (1) are respectively connected to a transducer bent pipe assembly (2), and the ends of the two transducer bent pipe assemblies (2) are respectively connected to a liquid inlet pipe (7) and a liquid outlet pipe (8), characterized in that: A filter tube (6) is fixed at the end of the liquid inlet tube (7), a filter screen plate (12) is fixed inside the filter tube (6), an inner frame (15) is arranged outside the filter screen plate (12), the inner frame (15) is fixed on the inner wall of the filter tube (6), a rotating column (10) is embedded on the inner frame (15) through rotation, a turbine assembly (16) is fixed at one end of the rotating column (10), and a brush plate assembly (11) is fixed at the other end of the rotating column (10).

2. The heat exchanger in a medium-deep geothermal heat exchange well that is resistant to blockage according to claim 1, characterized in that: The bristle plate assembly (11) consists of soft bristles and a plate body, and the soft bristles are embedded on the surface of the plate body.

3. The heat exchanger in a mid-deep geothermal heat exchange well with an anti-clogging function according to claim 1, characterized in that: A storage tube (5) is fixedly mounted on the surface of the filter tube (6), a terminal (3) is threadedly connected to the bottom end of the storage tube (5), and a sealing gasket (4) is sleeved on the outer wall of one end of the terminal (3).

4. The heat exchanger in a mid-deep geothermal heat exchange well that is resistant to blockage according to claim 3, characterized in that: A guide groove plate (13) is provided at the top end of the impurity storage pipe (5), and the guide groove plate (13) is fixed on the surface of the filter screen plate (12).

5. The heat exchanger in a mid-deep geothermal heat exchange well that is resistant to blockage according to claim 1, characterized in that: A ball groove is provided on the surface of the rotating column (10), and a rolling ball (14) is embedded in the ball groove.

6. The heat exchanger in a mid-deep geothermal heat exchange well that is resistant to blockage according to claim 1, characterized in that: Ribs (9) are respectively installed at both ends of the inner frame (15), and one end of the ribs (9) is fixed on the inner wall of the filter tube (6).

7. The heat exchanger in a mid-deep geothermal heat exchange well that is resistant to blockage according to claim 1, characterized in that: The longitudinal section of the rotating column (10) is a circular structure, and the cross section of the rotating column (10) is a stem-shaped structure.

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