Pipe lowering device special for rock-soil energy storage heat exchange hole
By designing a dedicated downpipe device for geotechnical energy storage and heat exchange holes, and using supporting frames, trays, manual unwinders and pulleys, the problems of long time, high labor and high damage risks in the existing technology have been solved, and the economic speed and safety of downpipes have been achieved, and the development of the geothermal industry has been promoted.
Patent Information
- Application Number
- CN202422590725.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-10-25
AI Technical Summary
The lack of special downpipe devices in the existing technology leads to a long time for downpipes, a large number of labor, and a high risk of damage to the inner pipe during the underground heat exchange process of geotechnical energy storage. The existing equipment has poor effect in the underground heat exchange technology of geotechnical energy storage.
A special downpipe device for geotechnical energy storage heat exchange holes is designed, including supporting frames, disc frames, manual unwinders, inner pipe crotch guardrails and pulleys. The pert-II polyethylene pipe downpipe is driven by a manual unwinder. The pulley provides the fulcrum and direction. The inner pipe crotch guardrail ensures the direction of the downpipe and prevents falling off, improving the efficiency and safety of the downpipe.
The device is simple, light and flexible in structure, improves the efficiency of single-hole downpipe, reduces labor costs, and realizes economical, fast and safe downpipes, helping the rapid development of the geothermal industry.
Smart Images
Figure CN223119898U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of downhole heat exchange, in particular to a special pipe-laying device for heat exchange holes in rock and soil energy storage. Background Technique
[0002] Geothermal energy is renewable heat energy from the interior of the earth. It originates from the magma inside the earth and the decay of radioactive substances. These heats are continuously transferred from the lower high-temperature rock strata to the upper low-temperature rock strata through formation heat conduction, with huge reserves and being renewable. Currently, geothermal energy can be divided into two forms in terms of utilization: hydrothermal geothermal (water source) and heat exchange geothermal (ground source).
[0003] The heat exchange inner pipe plays an important role in the technical field of downhole heat exchange. During the process of laying the heat exchange inner pipe, due to the lack of a special pipe-laying device, problems such as long pipe-laying time, a large number of workers, and a high risk of inner pipe damage exist. Currently, the commonly used pipe-laying devices at home and abroad are mostly applicable to medium-deep downhole heat exchange technologies, with less research on the pipe-laying devices applicable to rock and soil energy storage downhole heat exchange technologies, and poor effects in actual use. Therefore, a special pipe-laying device for heat exchange holes in rock and soil energy storage is proposed to solve the above problems. Content of the Utility Model
[0004] In order to make up for the above deficiencies, the utility model provides a special pipe-laying device for heat exchange holes in rock and soil energy storage, aiming to improve the problems in the prior art that during the process of laying the heat exchange inner pipe, due to the lack of a special pipe-laying device, there are problems such as long pipe-laying time, a large number of workers, and a high risk of inner pipe damage.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0006] A special pipe-laying device for heat exchange holes in rock and soil energy storage includes a support frame and a wellhead. Two disc frames are rotatably connected to the left side of the support frame. A manual unwinder is fixedly connected inside the disc frame. A connecting shaft is fixedly connected to the adjacent side of the two manual unwinders. An inner pipe protection crotch frame is fixedly connected to the right side of the support frame. A pulley is rotatably connected to the outside of the inner pipe protection crotch frame;
[0007] As a further description of the above technical scheme:
[0008] A pert-II polyethylene pipe is sleeved outside the disc frame. The other end of the pert-II polyethylene pipe is in contact with the outside of the pulley. The right end of the pert-II polyethylene pipe is in contact with the inside of the wellhead;
[0009] As a further description of the above technical scheme:
[0010] The outside of the disc rack is fixedly connected with a guardrail, which not only prevents the inner pipe from falling off during the process of lowering the pipe, but also serves as a force application point for manually rotating the disc rack.
[0011] As a further description of the above technical solution:
[0012] The pulley provides a fulcrum and direction for lowering the pipe, and the inner pipe protection crotch rack ensures the direction of lowering the pipe and prevents the pert-II polyethylene pipe from falling off during the process of lowering the pipe.
[0013] The utility model has the following beneficial effects:
[0014] 1. In the utility model, compared with the traditional pipe-lowering device, the structure, size and weight of this pipe-lowering device have been reduced to a certain extent, and it has the advantages of simple structure, lightness, flexibility, strong practicability and good aesthetics.
[0015] 2. In the utility model, this pipe-lowering device essentially improves the single-hole pipe-lowering efficiency, reduces the labor cost, and achieves the purpose of economical, fast and safe pipe-lowering.
[0016] 3. In the utility model, there is currently no applicable pipe-lowering device in the field of geothermal energy industry's geotechnical energy storage. This design can contribute to the rapid development of the geothermal energy industry. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a three-dimensional schematic diagram of the special pipe-lowering device for geotechnical energy storage heat exchange holes proposed by the utility model;
[0018] Figure 2 is a structural schematic diagram of the manual unwinder of the special pipe-lowering device for geotechnical energy storage heat exchange holes proposed by the utility model.
[0019] LEGEND DESCRIPTION:
[0020] 1. Disc rack; 2. Manual unwinder; 3. Connecting shaft; 4. Pert-II polyethylene pipe; 5. Inner pipe protection crotch rack; 6. Pulley; 7. Wellhead. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0021] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the utility model.
[0022] Refer to Figure 1, an embodiment provided by the present utility model: a special pipe-laying device for geotechnical energy storage heat exchange holes, including a support frame and a wellhead 7. The support frame is the basic framework of the entire device, used to fix and support other components. Two disc frames 1 are rotatably connected to the left side of the support frame. The disc frames 1 provide a stable and safe working environment. A pert-II polyethylene pipe 4 is sleeved outside the disc frames 1. A manual unwinder 2 is fixedly connected inside the disc frames 1, which is used to gradually release the pert-II polyethylene pipe 4 wound thereon. Adopting a manual driving method allows users to adjust the wire-releasing speed and force according to needs, so as to better control the pipe-laying process.
[0023] Referring to Figure 2 , a connecting shaft 3 is fixedly connected to the adjacent sides of the two manual unwinders 2. As a bridge between the two manual unwinders 2, it ensures that they can work synchronously, not only enhancing the stability of the overall structure, but also simplifying the assembly process. An inner pipe protection frame 5 is fixedly connected to the right side of the support frame, which is used to guide and protect the pert-II polyethylene pipe 4 during its descent. The existence of this component effectively avoids the risk of damage caused by external forces and also provides the necessary support for subsequent steps.
[0024] A pulley 6 is rotatably connected to the outside of the inner pipe protection frame 5, acting as a flexible fulcrum to help change the direction of the pert-II polyethylene pipe 4. When the pipe is pulled out from the disc frame 1 via the manual unwinder 2, it will pass through here first and then enter the wellhead 7. The selection of the pulley 6 needs to consider factors such as load-bearing capacity and friction to ensure a smooth operation experience.
[0025] The inner pipe protection frame 5 ensures the pipe-laying direction and prevents the pert-II polyethylene pipe 4 from falling off during pipe-laying. The other end outside of the pert-II polyethylene pipe 4 is in contact with the outside of the pulley 6, and the right end of the pert-II polyethylene pipe 4 is in contact with the inside of the wellhead 7, that is, the final destination - the location of the geotechnical energy storage heat exchange hole. In order to facilitate the access and fixation of the pert-II polyethylene pipe 4, the pulley 6 provides a pipe-laying fulcrum and direction. A guardrail is fixedly connected to the outside of the disc frame 1. The guardrail not only prevents the inner pipe from falling off during pipe-laying, but also serves as a force application point for manually rotating the disc frame 1.
[0026] Working principle: First, pull out the pert-II polyethylene pipe 4 outside the disc frame 1 by rotating the manual unwinder 2, then place the pert-II polyethylene pipe 4 on the outside of the pulley 6. At this time, the pulley 6 rotates on the outside of the inner pipe protection frame 5 as the pert-II polyethylene pipe 4 moves, and then place the pert-II polyethylene pipe 4 inside the wellhead 7.
[0027] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. The special pipe-laying device for geotechnical energy storage heat exchange holes, comprising a support frame and a wellhead (7), is characterized in that: There are two reel racks (1) rotatably connected to the left side of the support frame. A manual unwinder (2) is fixedly connected inside the reel rack (1). A connecting shaft (3) is fixedly connected to the adjacent sides of the two manual unwinders (2). An inner pipe protection crotch frame (5) is fixedly connected to the right side of the support frame. A pulley (6) is rotatably connected to the outside of the inner pipe protection crotch frame (5).
2. The special pipe-laying device for geotechnical energy storage heat exchange holes according to claim 1, characterized in that: A pert-II polyethylene pipe (4) is sleeved outside the reel rack (1). The other end of the pert-II polyethylene pipe (4) is in contact with the outside of the pulley (6). The right end of the pert-II polyethylene pipe (4) is in contact with the inside of the wellhead (7).
3. The special pipe-laying device for geotechnical energy storage heat exchange holes according to claim 1, characterized in that: A guardrail is fixedly connected to the outside of the reel rack (1). The guardrail not only prevents the inner pipe from falling off during the pipe lowering process but also serves as a force application point for manually rotating the reel rack (1).
4. The special pipe-laying device for geotechnical energy storage heat exchange holes according to claim 1, characterized in that: The pulley (6) provides a pipe lowering fulcrum and direction. The inner pipe protection crotch frame (5) ensures the pipe lowering direction and prevents the pert-II polyethylene pipe (4) from falling off during pipe lowering.