Anti-settling protection structure for buried heat pump pipeline

Abstract

This invention discloses a settlement-resistant protection structure for buried heat pump pipelines, comprising: multiple sets of support legs installed inside the tunnel; and support mechanisms, wherein the multiple sets of support mechanisms are symmetrically installed in pairs on both sides of the support legs. Through the design of the support mechanisms and connecting mechanisms, the support mechanisms are securely installed on the support legs and fixed to the inner wall of the tunnel, providing stable support for the heat pump pipeline, dispersing the external forces generated by soil settlement, and resisting damage to the pipeline from vertical tensile forces and lateral shear forces. Simultaneously, the multiple sets of support mechanisms, in conjunction with the connecting mechanisms, complete secondary limiting reinforcement. After the tunnel backfilling operation, this effectively avoids the problem of pipelines laid horizontally between adjacent sets of support mechanisms being suspended under stress, deformed, or damaged due to soil compression and settlement. This improves the pipeline's settlement resistance and laying stability, reduces the media leakage failure rate, ensures heat pump heat exchange efficiency, extends equipment service life, and guarantees long-term stable system operation.

Description

Technical Field

[0001] This invention relates to the field of heat pump pipeline anti-settlement technology, specifically to a buried heat pump pipeline anti-settlement protection structure. Background Technology

[0002] Currently, buried heat pump pipelines generally adopt a construction method of direct pipe burial, ordinary sand and gravel backfilling, and simple support for limiting the installation. The structural design is simple and can only meet the needs of foundation laying and heat exchange operations, without setting up a dedicated anti-settlement protection structure. The underground soil layer is susceptible to uneven settlement and local collapse due to insufficient backfill compaction, groundwater erosion, wet-dry cycles, and building load compression.

[0003] Traditional simple supports have poor stability and cannot effectively counteract the vertical tensile and lateral shear forces generated by soil settlement. This can easily lead to the stretching, twisting, bending and damage of heat pump pipelines, frequent loosening and leakage of pipeline joints, resulting in leakage of heat exchange medium, significantly reducing the heat exchange efficiency of the heat pump, and affecting the long-term stable operation of the heat pump system. Therefore, we need to propose a buried heat pump pipeline anti-settlement protection structure. Summary of the Invention

[0004] The purpose of this invention is to provide a settlement-resistant protection structure for buried heat pump pipelines, in order to solve the problem in the background art where simple supports cannot effectively offset the vertical tensile force and lateral shear force generated by soil settlement, which easily leads to the stretching, twisting, bending and damage of heat pump pipelines, frequent loosening and leakage of pipeline joints, resulting in leakage of heat exchange medium, significantly reducing the heat exchange efficiency of heat pumps, and affecting the long-term stable operation of heat pump systems.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A buried heat pump pipeline anti-settlement protection structure includes: multiple sets of support legs installed inside the tunnel, each with a pipe support seat a for supporting the heat pump pipeline installed on its top, and a pipe fixing seat a for fixing the heat pump pipeline fixed on the top of the pipe support seat a; multiple sets of bracket mechanisms, which are symmetrically installed in pairs on both sides of the support legs for providing stable support for the heat pump pipeline deep into the tunnel wall; and a connecting mechanism installed on the bracket mechanisms of the multiple sets of support legs for providing stable support for the heat pump pipeline installed between adjacent bracket mechanisms.

[0007] Preferably, the support leg includes a support base, a fixing plate, an extension plate, an adjusting rod, and a hand-tightening screw;

[0008] The adjusting rod is inserted into the support base and is fixed in place by a hand-tightening screw. The top of the adjusting rod is fixedly connected to the bottom of the fixing plate.

[0009] The extension plate is provided in multiple sets, and the multiple sets of extension plates are evenly distributed along the side of the bottom of the support leg.

[0010] Preferably, the support mechanism includes a support tube, a connecting seat, a plug-in rod, a conical head, and a push rod;

[0011] The support tube is fixedly connected to the side of the fixing plate. The support tube is hollow inside. The connecting seat is located inside the support tube. The plug rod is installed on the connecting seat. The conical head is integrally formed at the end of the plug rod. One end of the push rod is inserted into the inside of the support tube, and the end of the push rod contacts the side of the connecting seat.

[0012] Preferably, the support mechanism further includes a positioning block and a positioning groove;

[0013] The positioning block is provided in multiple sets, and the multiple sets of positioning blocks are fixedly connected to the side of the connecting seat. The support tube has multiple sets of positioning grooves corresponding to the positioning blocks, and the positioning blocks are located inside the positioning grooves.

[0014] Preferably, the connecting mechanism includes a positioning seat, a supporting steel wire, and a supporting plate;

[0015] The positioning seat is provided in two sets, and the two sets of positioning seats are symmetrically fixedly connected to the support tube. The support steel wire is tightened and fixed in the positioning seat by fixing screws, and the support plate is fixedly installed on the support steel wire.

[0016] Preferably, it also includes a pipe support base b, which is fixedly installed on the top of the support plate for supporting the heat pump pipe between adjacent support legs. A pipe fixing base b is fixedly installed on the top of the pipe support base b for fixing the heat pump pipe.

[0017] Preferably, the end of the plug rod is fixedly connected to a threaded post, and the connector has an internal thread, with the threaded post engaging the internal thread and being threaded inside the connector.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] This invention utilizes a design incorporating support and connecting mechanisms. The support mechanism is securely mounted on the support legs and fixed to the inner wall of the tunnel, providing stable support for the heat pump pipeline. This disperses the external forces generated by soil settlement and resists damage to the pipeline from vertical tensile and lateral shear forces. Simultaneously, multiple support mechanisms working in conjunction with the connecting mechanism provide secondary reinforcement and limiting. After tunnel backfilling, this effectively avoids the problems of pipelines laid horizontally between adjacent support mechanisms being suspended under stress, deformed, or damaged due to soil compression and settlement. This enhances the pipeline's resistance to settlement and laying stability, reduces the media leakage failure rate, ensures heat pump heat exchange efficiency, extends equipment lifespan, and guarantees long-term stable system operation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the support leg and bracket mechanism of the present invention;

[0022] Figure 3 This is a schematic diagram of the support mechanism of the present invention when disassembled;

[0023] Figure 4 This is a schematic diagram of the structure of the supporting steel wire, supporting plate, pipe support seat a and pipe fixing seat b of the present invention.

[0024] In the diagram: 1. Support leg; 11. Support seat; 12. Fixing plate; 13. Extension plate; 14. Adjusting rod; 15. Hand screw; 2. Pipe support seat a; 3. Pipe fixing seat a; 4. Bracket mechanism; 41. Support pipe; 42. Connecting seat; 43. Positioning block; 44. Positioning groove; 45. Insert rod; 46. Push rod; 47. Conical head; 5. Connecting mechanism; 51. Positioning seat; 52. Support wire; 53. Support plate; 6. Pipe support seat b; 7. Pipe fixing seat b; 8. Threaded column. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Please see Figure 1-4 The present invention provides a technical solution:

[0027] A ground-buried heat pump pipeline anti-settlement protection structure includes: a support leg 1, a pipeline support seat a2, a pipeline fixing seat a3, a support mechanism 4, and a connecting mechanism 5;

[0028] Multiple sets of support legs 1 are installed inside the tunnel. Each support leg 1 is equipped with a pipe support seat a2 for supporting the heat pump pipeline. A pipe fixing seat a3 for fixing the heat pump pipeline is fixedly installed on the top of the pipe support seat a2.

[0029] The support mechanism 4 is provided in multiple sets, and the multiple sets of support mechanisms 4 are symmetrically installed in pairs on both sides of the support leg 1. They are used to penetrate deep into the inner wall of the tunnel to provide stable support for the heat pump pipeline. Together with the bottom support leg 1, they form a three-dimensional support system to provide stable support for the heat pump pipeline and greatly improve the overall structure's anti-overturning and anti-settlement performance.

[0030] Each of the multiple support legs 1 is equipped with a connecting mechanism 5, which is used to stably support the heat pump pipeline installed between adjacent support mechanisms 4. The connecting mechanism 5 is horizontally installed between two adjacent support mechanisms 4, which can provide auxiliary support for the middle section of the heat pump pipeline with a long span, solve the problem of no support and concentrated stress in the middle section after the pipeline is laid across the air, connect the adjacent support structures into a whole, further improve the integrity and stability of the entire protective structure, and achieve full-range anti-settlement protection without dead angles.

[0031] In an optional embodiment: such as Figure 2 and 3 As shown, the support leg 1 includes a support base 11, a fixing plate 12, an extension plate 13, an adjusting rod 14, and a hand-tightening screw 15;

[0032] The adjusting rod 14 is inserted into the support base 11 and is fixed in the support base 11 by a hand-tightening screw 15. The top of the adjusting rod 14 is fixedly connected to the bottom of the fixing plate 12.

[0033] Multiple sets of extension plates 13 are provided, and the multiple sets of extension plates 13 are evenly distributed along the side of the bottom of the support leg 1, increasing the contact area between the support base 11 and the soil layer at the bottom of the tunnel, effectively reducing the compressive load per unit area, preventing the support leg 1 from sinking or tilting under soil settlement and heavy soil pressure, and further improving the stability of the bottom support.

[0034] It should be noted that the support base 11, fixing plate 12, extension plate 13, adjusting rod 14, and hand-tightening screw 15 work together to adjust the height of the heat pump pipeline inside the tunnel. In actual construction, the extension height of the adjusting rod 14 can be flexibly adjusted according to the tunnel excavation depth, the flatness of the underground soil layer, and the design elevation of the pipeline laying. This accurately matches the laying height requirements of the heat pump pipeline, adapts to the installation needs of different construction conditions, and effectively solves the problems of poor adaptability and difficulty in controlling the flatness of the pipeline laying of traditional fixed height support structures. It ensures that the height of multiple sets of heat pump pipelines is uniform and the layout is neat after laying, laying the foundation for subsequent anti-settlement protection. At the same time, the structural adjustment operation is convenient and greatly improves construction efficiency.

[0035] In an optional embodiment: such as Figure 2 and 3 As shown, the support mechanism 4 includes a support tube 41, a connecting seat 42, a plug-in rod 45, a conical head 47, and a push rod 46;

[0036] The support tube 41 is fixedly connected to the side of the fixing plate 12. The support tube 41 is hollow inside. The connecting seat 42 is located inside the support tube 41. The plug rod 45 is installed on the connecting seat 42. The conical head 47 is integrally formed on the end of the plug rod 45. One end of the push rod 46 is inserted into the inside of the support tube 41, and the end of the push rod 46 contacts the side of the connecting seat 42.

[0037] It should be noted that by cooperating with the support pipe 41, connecting seat 42, plug rod 45, conical head 47 and push rod 46, the pipe support seat a2 and the pipe fixing seat a3 can be stably anchored to the soil and rock inside the tunnel, changing the traditional single force-bearing mode that relies only on bottom support and forming a three-dimensional support system of "bottom bearing + side wall anchoring".

[0038] When uneven settlement or extrusion deformation of the underground soil occurs, the plug-in rod 45 anchored to the side wall can effectively share the vertical pressure, lateral shear force and tensile force generated by the soil settlement, disperse the external force on the pipeline to the soil structure of the tunnel, avoid stress concentration on the pipeline surface, effectively resist the extrusion and pulling damage of external deformation on the heat pump pipeline, and prevent pipeline cracking, interface leakage and other failures.

[0039] Meanwhile, both the plug rod 45 and the push rod 46 are detachable assembly structures. After construction is completed or when the pipeline is inspected or replaced, the plug rod 45 can be disassembled from the support pipe 41 to realize component recycling and reuse, reduce construction material costs, save energy and protect the environment, and adapt to multiple construction, inspection and repair reuse scenarios.

[0040] In an optional embodiment: such as Figure 3 As shown, the support mechanism 4 also includes a positioning block 43 and a positioning groove 44;

[0041] The positioning block 43 is provided in multiple sets, and the multiple sets of positioning blocks 43 are fixedly connected to the side of the connecting seat 42. The support tube 41 is provided with multiple sets of positioning grooves 44 corresponding to the positioning blocks 43, and the positioning blocks 43 are located inside the positioning grooves 44.

[0042] It should be noted that the positioning block 43, in conjunction with the positioning groove 44, serves to prevent the insertion rod 45 from detaching, thus forming a radial anti-detachment constraint on the connecting seat 42 and the insertion rod 45. During the process of pushing the insertion rod 45 through the push rod 46 to pierce and anchor into the tunnel wall, it effectively limits the radial displacement of the connecting seat 42, preventing the insertion rod 45 from shifting or detaching from the support tube 41 due to excessive striking force or uneven soil resistance. This ensures that the insertion rod 45 is always accurately embedded in the tunnel wall in a horizontal direction, guaranteeing precise anchoring and stable force.

[0043] In an optional embodiment: such as Figure 3 and Figure 4 As shown, the connecting mechanism 5 includes a positioning seat 51, a supporting steel wire 52, and a supporting plate 53;

[0044] The positioning seat 51 is provided in two sets. The two sets of positioning seats 51 are symmetrically fixedly connected to the support tube 41. The support steel wire 52 is fixedly abutted and fixed inside the positioning seat 51 by fixing screws. The support plate 53 is fixedly installed on the support steel wire 52.

[0045] It should be noted that in the gaps between multiple support legs of traditional buried heat pump pipelines, due to the lack of auxiliary support, the settlement of the soil layer after backfilling will cause the middle section of the pipeline to be suspended, and it will be in a state of suspended stress for a long time, which will easily lead to problems such as bending deformation, fatigue damage of the pipe wall, loosening and leakage of the joints.

[0046] By cooperating with the positioning seat 51, the supporting steel wire 52 and the supporting plate 53, and utilizing the tension performance of the high-strength supporting steel wire 52, a flexible tension support structure is formed between two adjacent sets of supporting legs 1. Together with the supporting plate 53, it provides comprehensive support for the middle section of the pipeline, which can effectively avoid the problems of pipelines being suspended in the air and localized stress concentration, offset the deformation stress caused by soil compression and soil settlement, greatly improve the anti-settlement ability and overall flatness of long-distance pipelines, and prevent local collapse and bending damage of pipelines.

[0047] In an optional embodiment: such as Figure 4 As shown, it also includes a pipe support base b6, which is fixedly installed on the top of the support plate 53 for supporting the heat pump pipe between adjacent support legs 1. A pipe fixing base b7 is fixedly installed on the top of the pipe support base b6 for fixing the heat pump pipe.

[0048] It should be noted that by cooperating with the pipe support b6 and the pipe fixing seat b7, the heat pump pipeline in the cross-section can be stably locked and fixed on the support plate 53 of the connecting mechanism 5, achieving uninterrupted support and fixation of the pipeline throughout its entire length. This provides stable support for the middle section of the pipeline, sharing the pipeline's own weight and the pressure of the soil cover, preventing the pipeline from loosening or shifting under slight geological settlement or groundwater disturbance, further enhancing the protective effect of the entire structure, and achieving all-round anti-settlement protection for the entire length of the heat pump pipeline.

[0049] In an optional embodiment: such as Figure 3 As shown, a threaded post 8 is fixedly connected to the end of the plug rod 45, and an internal thread is provided in the connector 42. The threaded post 8 is installed inside the connector 42 in conjunction with the internal thread.

[0050] It should be noted that, through the threaded post 8 and the internal thread, the plug-in rod 45 is detachable and replaceable. During actual construction, workers can flexibly replace plug-in rods 45 of different lengths according to the width and anchoring depth requirements of different tunnels, ensuring that the plug-in rod 45 can be fully embedded into the deep soil and rock layers of the tunnel wall, ensuring that the anchoring strength meets the standards. This effectively prevents problems such as insecure sidewall support and detachment due to insufficient plug-in rod 45 length or shallow anchoring depth. Furthermore, when the plug-in rod 45 is worn, deformed, or damaged, it can be disassembled and replaced individually without replacing the entire support mechanism 4, reducing equipment maintenance and usage costs and improving the adaptability and practicality of the structure.

[0051] The usage process of this invention is as follows: Place the bottom of the support base 11 at the bottom of the tunnel, and place the plug rod 45 against the inner wall of the tunnel. Adjust the height of the pipe support base a2 to a suitable height, and then tighten the hand screw 15 so that the end of the hand screw 15 abuts against the surface of the adjusting rod 14 to fix the adjusting rod 14.

[0052] After inserting the push rod 46 into the support tube 41, the push rod 46 pushes the plug rod 45, so that the conical head 47 contacts the inner wall of the tunnel. By striking the push rod 46, the push rod 46 pushes the connecting seat 42 and the plug rod 45, so that the plug rod 45 penetrates into the inner wall of the tunnel. At this time, the plug rod 45 cooperates with the support tube 41 to stably support the heat pump pipeline.

[0053] The support wire 52 is passed through the positioning seats 51 on the multiple sets of support legs 1. First, one end of the support wire 52 is fixed in the outermost positioning seat 51. Then, the support wire 52 is dragged so that it is taut between two adjacent sets of support legs 1. The support wire 52 is then fixed in the positioning seat 51 until the other end of the support wire 52 is fixed in the rightmost positioning seat 51. Then, the support plate 53 is fixed on the support wire 52.

[0054] After the support mechanism 4 and the connecting mechanism 5 are installed, the heat pump pipeline is placed in the pipe support a2 and the pipe support b6. Then, the pipe fixing seat a3 is installed on the pipe support a2 and the pipe fixing seat b7 is installed on the pipe support b6 to fix the heat pump pipeline. Through the cooperation of the support mechanism 4 and the connecting mechanism 5, the pipeline's anti-settlement ability and laying stability are improved, the media leakage failure rate is reduced, the heat exchange efficiency of the heat pump is guaranteed, the service life of the equipment is extended, and the long-term stable operation of the system is ensured.

[0055] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A settlement-resistant protection structure for buried heat pump pipelines, characterized in that, include: Multiple sets of support legs (1) installed inside the tunnel, each with a pipe support seat a (2) for supporting the heat pump pipeline installed on its top, and a pipe fixing seat a (3) for fixing the heat pump pipeline fixed on the top of the pipe support seat a (2). The support mechanism (4) is provided in multiple sets. The multiple sets of support mechanisms (4) are symmetrically installed on both sides of the support leg (1) to provide stable support for the heat pump pipeline by going deep into the inner wall of the tunnel. The connecting mechanism (5) is installed on the bracket mechanism (4) of multiple sets of support legs (1) for stably supporting the heat pump pipeline installed between adjacent bracket mechanisms (4).

2. The anti-settlement protection structure for buried heat pump pipelines according to claim 1, characterized in that: The support leg (1) includes a support base (11), a fixing plate (12), an extension plate (13), an adjusting rod (14), and a hand screw (15). The adjusting rod (14) is inserted into the support base (11) and is fixed in the support base (11) by a hand-tightening screw (15). The top of the adjusting rod (14) is fixedly connected to the bottom of the fixing plate (12). The extension plate (13) is provided in multiple sets, and the multiple sets of the extension plate (13) are evenly distributed along the side of the bottom of the support leg (1).

3. The anti-settlement protection structure for buried heat pump pipelines according to claim 2, characterized in that: The support mechanism (4) includes a support tube (41), a connecting seat (42), a plug-in rod (45), a conical head (47), and a push rod (46). The support tube (41) is fixedly connected to the side of the fixing plate (12). The support tube (41) is hollow inside. The connecting seat (42) is located inside the support tube (41). The plug rod (45) is installed on the connecting seat (42). The conical head (47) is integrally formed on the end of the plug rod (45). One end of the push rod (46) is inserted into the inside of the support tube (41), and the end of the push rod (46) contacts the side of the connecting seat (42).

4. The anti-settlement protection structure for buried heat pump pipelines according to claim 3, characterized in that: The support mechanism (4) also includes a positioning block (43) and a positioning groove (44). The positioning block (43) is provided in multiple sets, and the multiple sets of positioning blocks (43) are fixedly connected to the side of the connecting seat (42). The support tube (41) has multiple sets of positioning grooves (44) corresponding to the positioning blocks (43), and the positioning blocks (43) are located inside the positioning grooves (44).

5. The anti-settlement protection structure for buried heat pump pipelines according to claim 4, characterized in that: The connecting mechanism (5) includes a positioning seat (51), a supporting steel wire (52), and a supporting plate (53); The positioning seat (51) is provided in two sets. The two sets of positioning seats (51) are symmetrically fixedly connected to the support tube (41). The support wire (52) is fixedly abutted in the positioning seat (51) by fixing screws. The support plate (53) is fixedly installed on the support wire (52).

6. The anti-settlement protection structure for buried heat pump pipelines according to claim 5, characterized in that: It also includes a pipe support seat b (6), which is fixedly installed on the top of the support plate (53) for supporting the heat pump pipe between adjacent support legs (1). A pipe fixing seat b (7) is fixedly installed on the top of the pipe support seat b (6) for fixing the heat pump pipe.

7. The anti-settlement protection structure for buried heat pump pipelines according to claim 3, characterized in that: The end of the plug rod (45) is fixedly connected to a threaded post (8), and the connecting seat (42) has an internal thread. The threaded post (8) is installed inside the connecting seat (42) in conjunction with the internal thread.

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