Underground heat exchanger burying device of ground source heat pump

Abstract

The utility model discloses a ground source heat pump underground heat exchanger burying device which comprises a drilling well, a platform is arranged at the top of the drilling well, a heat exchange pipe is arranged in the drilling well, a steel casing is fixedly connected to the bottom of the heat exchange pipe, a ground breaking blade is fixedly connected to the outer side wall of the steel casing, and a limiting mechanism is arranged in the platform. The limiting mechanism comprises a left limiting frame and a right limiting frame, and the bottom of the left limiting frame and the bottom of the right limiting frame are fixedly connected with a first arc-shaped plate and a second arc-shaped plate correspondingly. The limiting mechanism, the platform and the heat exchange pipe are matched with one another, the heat exchange pipeline is limited in a wellhead limiting mode, the heat exchange pipeline is effectively prevented from being wound when the heat exchange pipe enters a well, meanwhile, the split type design is adopted, the overall structure is simple, disassembly, assembly and recovery are convenient, and resource occupation and waste are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchanger buried equipment, in particular to a ground source heat pump underground heat exchanger buried device. Background Art

[0002] Geothermal heat pump uses ground energy (soil, groundwater, surface water, low-temperature geothermal water and tail water) as the cooling source for heat pump cooling in summer and the low-temperature heat source for heating in winter. It is also a system for heating, cooling and domestic hot water. It is used to replace the traditional mode of using refrigerators and boilers for air conditioning, heating and heating. It is an effective way to improve the urban atmospheric environment and save energy. It is also a new development direction for the utilization of ground energy in China.

[0003] When the existing ground source heat pump underground heat exchanger is buried, the heat exchange tube is easily entangled when it is pulled. Therefore, in recent years, buried devices with wire-laying mechanisms have gradually appeared on the market. They lay the tubes by external wire-laying and underground counterweights. Although this makes the heat exchange tubes less likely to be entangled, the overall structure is relatively complex, and the counterweights under the tubes undoubtedly greatly increase the burden on the heat exchanger pipelines, making the probability of pipeline damage more prone to damage. At the same time, the counterweights enter the borehole and cannot be recovered, resulting in occupation and waste of resources. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] The purpose of the utility model is to provide a buried device for an underground heat exchanger of a ground source heat pump, which limits the heat exchange pipeline by a wellhead limiting method, effectively preventing the heat exchange pipe from being entangled when entering the drilling well, and adopts a split design, which is easy to disassemble and recycle, avoiding occupation and waste of resources.

[0006] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0007] A device for burying an underground heat exchanger of a ground source heat pump comprises a well, a platform is arranged on the top of the well, a heat exchange pipe is arranged inside the well, a steel casing is fixedly connected to the bottom of the heat exchange pipe, and a ground-breaking blade is fixedly connected to the outer wall of the steel casing;

[0008] A limiting mechanism is arranged inside the platform, and the limiting mechanism comprises a left limiting frame and a right limiting frame, and the bottoms of the left limiting frame and the right limiting frame are respectively fixedly connected with a first arc plate and a second arc plate.

[0009] As a preferred solution of the buried device of the ground source heat pump underground heat exchanger described in the utility model, concrete is poured between the steel casing and the bottom of the heat exchange tube to facilitate heat exchange with the heat exchange tube.

[0010] As a preferred solution of the buried device of the ground source heat pump underground heat exchanger described in the utility model, four breaking blades are arranged, and the four breaking blades are evenly distributed in a ring shape around the steel casing to reduce the friction between the casing wall and the drilling wall.

[0011] As a preferred solution of the buried device of the underground heat exchanger of the ground source heat pump described in the utility model, the first arc plate and the second arc plate are fixedly connected with magnets on one side close to each other, and the two magnets are attracted by magnetic force. When the left limit frame and the right limit frame contact each other, they are positioned by the magnets, which facilitates improving the connection stability between the two.

[0012] As a preferred solution of the buried device of the underground heat exchanger of the ground source heat pump described in the utility model, the left limit frame and the right limit frame are each provided with through holes corresponding to the first arc plate and the second arc plate respectively, and the inner wall of the through hole is arranged in an arc-shaped convex shape. The arc-shaped inner wall is arranged to reduce the friction between the pipeline and its inner wall when laying out the line, so as to better transport the heat exchange pipe.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model limits the heat exchange pipeline by means of a wellhead limit mode through the cooperation between the limit mechanism, the platform and the heat exchange pipe, thereby effectively preventing the heat exchange pipe from being entangled when entering the drilling well. At the same time, the device adopts a split design with a simple overall structure and is easy to disassemble and recycle, thus avoiding occupation and waste of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the implementation of the utility model, the utility model will be described in detail below in combination with the drawings and detailed implementation. Obviously, the drawings described below are only some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0016] Figure 1 This is a structural schematic diagram of a buried device for an underground heat exchanger of a ground source heat pump according to the utility model;

[0017] Figure 2 This is a schematic diagram of the steel casing structure of a buried device for an underground heat exchanger of a ground source heat pump according to the utility model;

[0018] Figure 3 The utility model is a schematic diagram of the structure of a limiting mechanism of an underground heat exchanger buried device of a ground source heat pump.

[0019] Legend: 1. Drilling; 2. Platform; 3. Limiting mechanism; 4. Left limiting frame; 5. Right limiting frame; 6. Heat exchange tube; 7. Steel casing; 8. Breaking knife; 9. First curved plate; 10. Second curved plate; 11. Magnet; 12. Through hole. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0021] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0022] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0023] See also Figure 1-3 The utility model provides a buried device for an underground heat exchanger of a ground source heat pump, comprising a well 1, a platform 2 is arranged on the top of the well 1, a heat exchange pipe 6 is arranged inside the well 1, a steel casing 7 is fixedly connected to the bottom of the heat exchange pipe 6, and concrete is poured between the steel casing 7 and the bottom of the heat exchange pipe 6 to facilitate heat exchange with the heat exchange pipe 6. A ground-breaking blade 8 is fixedly connected to the outer wall of the steel casing 7.

[0024] A limiting mechanism 3 is arranged inside the platform 2, and the limiting mechanism 3 includes a left limiting frame 4 and a right limiting frame 5, and the bottoms of the left limiting frame 4 and the right limiting frame 5 are respectively fixedly connected with a first arc plate 9 and a second arc plate 10, wherein the left limiting frame 4 and the right limiting frame 5 are respectively provided with through holes 12 corresponding to the first arc plate 9 and the second arc plate 10, and the inner wall of the through hole 12 is arranged in an arc-shaped convex shape. The arc-shaped inner wall is arranged to reduce the friction between the pipeline and its inner wall when laying out the line, so that the heat exchange tube 6 can be better transported.

[0025] When in use, the steel casing 7 with the U-shaped heat exchange tube 6 is placed into the borehole 1, the interior of the steel casing 7 is poured with concrete, and four soil-breaking blades 8 are fixedly connected to the outer wall of the steel casing 7. When the steel casing 7 is lowered, if the steel casing 7 swings, the blades come into contact with the soil on the inner wall of the borehole 1, and the friction between the blades and the soil is small. At the same time, the blades are easy to break the soil layer, which is conducive to better entry of the heat exchange tube 6 and the steel casing 7.

[0026] A limiting mechanism 3 is provided in the top platform 2 of the drilling 1. When in use, the two pipelines of the heat exchange tube 6 are placed in the first curved plate 9 and the second curved plate 10 respectively, and then the left limiting frame 4 and the right limiting frame 5 are placed on the platform 2 in turn.

[0027] The bottoms of the left limit frame 4 and the right limit frame 5 are supported on the top of the platform 2, the first curved plate 9 and the second curved plate 10 penetrate the platform 2 and extend inward, and the ends of the left limit frame 4 and the right limit frame 5 close to each other are provided with a card slot and a card block structure to facilitate fixing the two. At the same time, magnets 11 with opposite magnetic poles are provided on the side where the first curved plate 9 and the second curved plate 10 are close to each other. When the two are in contact, they can be attracted by magnetic force, thereby ensuring the stability of the first curved plate 9 and the second curved plate 10.

[0028] At this time, the two pipelines of the two heat exchange tubes 6 are blocked by the limiting mechanism 3, which effectively avoids the problem of the heat exchange tubes 6 being entangled with each other during the tube laying process. At the same time, compared with the wire laying mechanism set in the prior art, the structure is simpler and convenient for flexible assembly and disassembly.

[0029] In this embodiment, four earth-breaking blades 8 are provided, and the four earth-breaking blades 8 are evenly distributed around the steel casing 7 in a ring shape, so as to reduce the friction between the casing wall and the wall of the drilling well 1.

[0030] In this embodiment, a magnet 11 is fixedly connected to one side of the first arc plate 9 and the second arc plate 10 that are close to each other. The two magnets 11 are attracted to each other by magnetic force. When the left limit frame 4 and the right limit frame 5 contact each other, they are positioned by the magnet 11, which facilitates improving the connection stability between the two.

[0031] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A ground source heat pump underground heat exchanger buried device, comprising a well (1), characterized in that: A platform (2) is arranged on the top of the drilling well (1), a heat exchange tube (6) is arranged inside the drilling well (1), a steel casing (7) is fixedly connected to the bottom of the heat exchange tube (6), and a soil breaking blade (8) is fixedly connected to the outer wall of the steel casing (7); A limiting mechanism (3) is arranged inside the platform (2), and the limiting mechanism (3) comprises a left limiting frame (4) and a right limiting frame (5), and the bottoms of the left limiting frame (4) and the right limiting frame (5) are respectively fixedly connected with a first arc plate (9) and a second arc plate (10).

2. A ground source heat pump underground heat exchanger buried device according to claim 1, characterized in that: Concrete is poured between the steel casing (7) and the bottom of the heat exchange tube (6).

3. The buried device for underground heat exchanger of ground source heat pump according to claim 1, characterized in that: Four soil-breaking blades (8) are provided, and the four soil-breaking blades (8) are evenly distributed in a ring shape around the steel casing (7).

4. The buried device for underground heat exchanger of ground source heat pump according to claim 1, characterized in that: The first arc plate (9) and the second arc plate (10) are both fixedly connected to a magnet (11) on one side close to each other, and the two magnets (11) are attracted to each other by magnetic force.

5. The buried device for underground heat exchanger of ground source heat pump according to claim 1, characterized in that: The left limit frame (4) and the right limit frame (5) are both provided with through holes (12) corresponding to the first arc-shaped plate (9) and the second arc-shaped plate (10), respectively, and the inner walls of the through holes (12) are arranged in an arc-shaped convex shape.

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