Middle-deep geothermal energy metal heat exchanger

Abstract

The utility model discloses a medium-deep layer geothermal energy metal heat exchanger, and relates to the technical field of heat exchangers. Comprising a heat exchanger, flange plates are fixedly connected to the side surfaces of the two ends of the heat exchanger, a base is arranged below the flange plates, flange plates are fixedly connected to the side surfaces of the upper ends of the base, and mounting grooves are formed in the inner side surfaces of the flange plates; buckle convex rings are fixedly connected to the two ends of the sealing ring correspondingly, chamfers are formed in the side surfaces of the buckle convex rings, a pipeline supporting plate is arranged in the heat exchanger, multiple sets of mounting holes are formed in the pipeline supporting plate, heat exchange pipes are arranged in the mounting holes, and protection mechanisms are arranged between the heat exchange pipes and the mounting holes. The problem that the sealing effect is poor when the heat exchanger is sealed through a sealing gasket is solved, the sealing effect of the heat exchanger is improved, and hot air is prevented from being exhausted.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a medium-deep geothermal metal heat exchanger. Background Art

[0002] The medium-deep geothermal metal heat exchanger is a device used to extract medium-deep geothermal energy. It is a device that uses a drilling rig to drill a hole 2,000 to 3,000 meters underground and install a closed metal casing heat exchanger in the hole. This heat exchanger uses underground heat energy, exports underground heat energy, and supplies heat energy to ground buildings through ground heat pump units and distribution systems. This technology achieves clean, efficient and interference-free conduction of heat from the earth's core, so there is no need to burn coal, natural gas or other fossil fuels or extract groundwater during the heating process.

[0003] According to patent application number 202323096524.9, a closed medium-deep geothermal metal heat exchanger includes a base, a pipe box 7 is fixedly connected to the top of the base 1, a fluid pipe 6 is fixedly connected to one side of the pipe box 7, flanges 2 are fixedly connected to both ends of the pipe box 7, a sealing gasket 3 is attached to the outside of the flange 2, a nut 4 is installed inside the flange 2, a threaded groove 11 is provided on the inner side of the flange 2, a sealing gasket 3 is attached to the bottom of the threaded groove 11, a threaded pipe 10 is inserted in the middle of the threaded groove 11, the top of the threaded pipe 10 is fixedly connected to the flange 2, the top of the flange 2 is fixedly connected to the shell 5, a baffle 8 is embedded in the shell 5, a heat transfer pipe 9 is inserted in the middle of the baffle 8, and a fluid pipe 6 is fixedly connected to one side of the shell 5. The improved closed medium-deep geothermal metal heat exchanger has a threaded groove and a threaded pipe design at the bottom of the flange, so that the two ends of the flange can be connected together by threads. The inside and outside of the flange are equipped with sealing gaskets to enhance the sealing of the heat exchanger, prevent the discharge of hot gas, and improve the performance of the heat exchanger.

[0004] However, there are still some deficiencies in the above technical solution. Firstly, in the technical solution of the above patent, only an ordinary sealing gasket is added to strengthen the sealing of the heat exchanger. However, the internal pressure of the heat exchanger is relatively high at a deep underground location. After long-term use, a certain gap will be generated between the sealing gasket and the flange, thereby causing the sealing effect of the heat exchanger to deteriorate and causing the hot air inside the heat exchanger to be discharged. Secondly, the heat exchange tube bracket inside the traditional heat exchanger generally fixes the heat exchange tube by a spiral plate. However, during the heat exchange process, the water flow inside the heat exchange tube is relatively rapid and the pressure is relatively high. Therefore, the heat exchange tube will vibrate, and friction will occur between the heat exchange tube and the spiral plate, thereby reducing the service life of the heat exchange tube. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a medium-deep geothermal metal heat exchanger, which solves the problem of poor sealing effect when the sealing gasket is used to seal the heat exchanger, and improves the sealing effect of the heat exchanger to avoid hot gas discharge.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a medium-deep geothermal metal heat exchanger, including a heat exchanger, the side surfaces of both ends of the heat exchanger are fixedly connected with flanges, and a base is provided below the flanges, the upper side surface of the base is fixedly connected with flanges, and the inner surface of the flange is provided with a mounting groove, a seal is provided between the heat exchanger and the base, and the seal includes a sealing ring, both ends of the sealing ring are fixedly connected with snap rings, and the side surface of the snap ring is provided with a chamfer, a pipe support plate is provided inside the heat exchanger, and a plurality of mounting holes are provided inside the pipe support plate, a heat exchange tube is provided inside the mounting hole, and a protective mechanism is provided between the heat exchange tube and the mounting hole.

[0007] Preferably, an externally threaded pipe is fixedly connected to the lower end of the heat exchanger, and an internally threaded sleeve is fixedly connected to the upper end of the base, and the internally threaded sleeve matches the externally threaded pipe.

[0008] Preferably, the cross-section of the mounting groove on the inner surface of the flange is an L-shaped structure.

[0009] Preferably, the protection mechanism comprises a protection sleeve, and the outer surface of the protection sleeve is fixedly connected to the inner surface of the mounting hole, and the protection sleeve is arranged on the outer side of the heat exchange tube.

[0010] Preferably, a plurality of groups of support plates are fixedly connected to the upper surface of the pipeline support plate, and the internal threads of the support plate are connected to mounting screws.

[0011] Preferably, a plurality of groups of support plates are fixedly connected to the upper surface of the pipeline support plate, and the internal threads of the support plate are connected to mounting screws.

[0012] The utility model provides a medium-deep geothermal metal heat exchanger. Compared with the prior art, it has the following beneficial effects:

[0013] 1. The sealing ring and snap ring in the seal arranged between the heat exchanger and the base cooperate with the mounting groove on the inner surface of the flange, thereby solving the problem of poor sealing effect when the sealing gasket seals the heat exchanger, improving the sealing effect of the heat exchanger and avoiding energy loss caused by hot gas discharge.

[0014] 2. Through the protective sleeve inside the pipe support plate and the support plate and mounting screws on the upper surface of the pipe support plate, multiple sets of pipe support plates can be easily installed, and at the same time, the friction between the heat exchange tube and the mounting hole is avoided, thereby improving the installation stability of the heat exchange tube, reducing the friction between the heat exchange tube and the mounting hole, and further improving the service life of the heat exchange tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the base in the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the pipeline support plate in the utility model;

[0018] Figure 4 It is a structural schematic diagram of the pipeline support plate in the utility model.

[0019] In the figure: 1 heat exchanger, 2 flange, 201 mounting groove, 3 external threaded pipe, 4 base, 402 internal threaded sleeve, 5 seal, 501 sealing ring, 502 snap ring, 503 positioning ring, 504 chamfer, 7 pipe support plate, 701 mounting hole, 702 support plate, 703 protective cover, 704 heat exchange tube, 705 mounting screw. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-4 The utility model provides a technical solution: a medium-deep geothermal metal heat exchanger, comprising a heat exchanger 1, wherein flanges 2 are fixedly connected to the side surfaces of both ends of the heat exchanger 1, and a base 4 is provided below the flange 2, and the upper side surface of the base 4 is fixedly connected to the flange 2, and the inner surface of the flange 2 is provided with a mounting groove 201, a seal 5 is provided between the heat exchanger 1 and the base 4, and the seal 5 comprises a sealing ring 501, both ends of the sealing ring 501 are fixedly connected to buckle convex rings 502, and the side surface of the buckle convex ring 502 is provided with a chamfer 504, a pipe support plate 7 is provided inside the heat exchanger 1, and a plurality of mounting holes 701 are provided inside the pipe support plate 7, a heat exchange tube 704 is provided inside the mounting hole 701, and a protection mechanism is provided between the heat exchange tube 704 and the mounting hole 701.

[0022] As a technical optimization solution of the utility model, the lower end of the heat exchanger 1 is fixedly connected to an external threaded tube 3, and the upper end of the base 4 is fixedly connected to an internal threaded sleeve 402, and the internal threaded sleeve 402 matches the external threaded tube 3, which can perform preliminary sealing on the heat exchanger 1 and ensure the stability between the heat exchanger 1 and the base 4.

[0023] As a technical optimization solution of the present invention, the cross-section of the mounting groove 201 on the inner surface of the flange 2 is an L-shaped structure, which facilitates the snap-in convex ring 502 to be snapped into the inside of the mounting groove 201 when installing the seal 5. Therefore, the pressure inside the heat exchanger 1 can make the snap-in convex ring 502 closer to the flange 2 when squeezing the seal 5, thereby improving the sealing of the heat exchanger.

[0024] As a technical optimization solution of the utility model, the protection mechanism includes a protection sleeve 703, and the outer surface of the protection sleeve 703 is fixedly connected to the inner surface of the mounting hole 701. The protection sleeve 703 is sleeved on the outer side of the heat exchange tube 704, which can protect the heat exchange tube 704 and reduce the friction between the heat exchange tube 704 and the pipe support plate 7 when the heat exchange tube 704 shakes.

[0025] As a technical optimization solution of the utility model, the upper surface of the pipe support plate 7 is fixedly connected to multiple groups of support plates 702, and the internal threads of the support plate 702 are connected to mounting screws 705, which can support the pipe support plate 7 and facilitate the fixed installation of the pipe support plate 7 inside the heat exchanger 1.

[0026] As a technical optimization solution of the utility model, the outer surface of the sealing ring 501 is fixedly connected with a positioning ring 503, and a through hole is opened inside the positioning ring 503, which corresponds to the internal mounting hole of the flange 2, can facilitate the fixing of the sealing member 5 and improve the stability of the sealing member 5 after installation.

[0027] When the utility model is in use, the pipe support plate 7 is first placed inside the heat exchanger 1, and then the installation screw 705 inside the support plate 702 on the upper surface of the pipe support plate 7 is rotated to fix the pipe support plate 7 inside the heat exchanger 1, and then the heat exchange tubes 704 are inserted into the inside of the installation holes 701 one by one. After the installation of the installation holes 701 is completed, the base 4 is aligned with the flange 2 at one end of the heat exchanger 1, and the sealing ring 501 in the sealing member 5 is sleeved on the outer surface of the internal threaded sleeve 402. Then the staff threadably connects the external threaded tube 3 at the lower end of the heat exchanger 1 with the internal threaded sleeve 402. When the external threaded tube 3 and the internal threaded sleeve 402 are connected, the flange 2 also squeezes and buckles the buckle convex rings 502 at both ends of the sealing ring 501 inside the installation groove 201, and then fixes the heat exchanger 1, the base 4 and the sealing member 5 by screws.

[0028] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0029] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0030] 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 medium-deep geothermal metal heat exchanger, comprising a heat exchanger (1), characterized in that: The side surfaces at both ends of the heat exchanger (1) are fixedly connected to flanges (2), and a base (4) is provided below the flange (2); the side surface at the upper end of the base (4) is fixedly connected to the flange (2), and a mounting groove (201) is provided on the inner surface of the flange (2); a sealing member (5) is provided between the heat exchanger (1) and the base (4), and the sealing member (5) comprises a sealing ring (501); both ends of the sealing ring (501) are fixedly connected to snap rings (502), and a chamfer (504) is provided on the side surface of the snap ring (502); a pipe support plate (7) is provided inside the heat exchanger (1), and a plurality of mounting holes (701) are provided inside the pipe support plate (7); a heat exchange tube (704) is provided inside the mounting hole (701), and a protective mechanism is provided between the heat exchange tube (704) and the mounting hole (701).

2. The medium-deep geothermal metal heat exchanger according to claim 1 is characterized by: The lower end of the heat exchanger (1) is fixedly connected to an externally threaded pipe (3), the upper end of the base (4) is fixedly connected to an internally threaded sleeve (402), and the internally threaded sleeve (402) matches the externally threaded pipe (3).

3. The medium-deep geothermal metal heat exchanger according to claim 1 is characterized by: The cross section of the mounting groove (201) on the inner surface of the flange (2) is an L-shaped structure.

4. The medium-deep geothermal metal heat exchanger according to claim 1 is characterized by: The protection mechanism comprises a protection sleeve (703), and the outer surface of the protection sleeve (703) is fixedly connected to the inner surface of the mounting hole (701), and the protection sleeve (703) is sleeved on the outer side of the heat exchange tube (704).

5. The medium-deep geothermal metal heat exchanger according to claim 1 is characterized by: A plurality of groups of support plates (702) are fixedly connected to the upper surface of the pipeline support plate (7), and the internal threads of the support plates (702) are connected to mounting screws (705).

6. The medium-deep geothermal metal heat exchanger according to claim 1 is characterized by: A plurality of support plates (702) are fixedly connected to the upper surface of the pipeline support plate (7), and the internal threads of the support plates (702) are connected to mounting screws (705).

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