Wall bushing capable of preventing water seepage of heat supply well

Abstract

The utility model relates to the technical field of heat supply well through-wall pipes, and discloses a heat supply well water seepage prevention through-wall sleeve which comprises a heat supply pipeline, the outer side of the heat supply pipeline is fixedly sleeved with a sliding sleeve, the outer wall of the sliding sleeve is slidably provided with a pre-buried outer pipe which is used for adapting to the displacement change of the heat supply pipeline and is pre-buried in a wall body, and the sliding sleeve is sleeved with the pre-buried outer pipe. A displacement buffering assembly is arranged between the embedded outer pipe and the sliding sleeve, and a displacement limiting assembly connected with the embedded outer pipe is arranged on the displacement buffering assembly. The embedded outer pipe embedded in the wall body is arranged on the outer wall of the sliding sleeve in the sliding mode, so that relative displacement between the heat supply pipeline and the sliding sleeve can be avoided, and the situation that a waterproof structure between the heat supply pipeline and the wall bushing is damaged due to tiny displacement change of the heat supply pipeline caused by thermal expansion and cold contraction, pipeline sedimentation and the like is avoided. And the water seepage phenomenon is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of heating well wall-penetrating pipes, in particular to a wall-penetrating casing with the function of preventing water seepage in a heating well. Background Art

[0002] The wall casing of the heating well is an important component of the heating system. Water seepage through the wall casing of the heating well will lead to a waste of water resources. For areas with water shortages, this will undoubtedly increase the local water resource pressure; water seepage through the wall casing of the heating well will cause pollution to the surrounding environment, especially to groundwater, soil and other environmental factors; water seepage through the wall casing will cause changes in the internal structure of the well, accelerate the corrosion and aging of the casing, and shorten its service life; water seepage through the wall casing of the heating well will cause heat loss and reduce the heating efficiency. The water seepage problem will not only affect the heating effect, but also affect the stability and reliability of the heating system. In order to solve the above problems, we propose a wall casing with anti-water seepage function for the heating well. Utility Model Content

[0003] The utility model aims to provide a wall casing capable of preventing water seepage from a heating well, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wall sleeve with the function of preventing water seepage from a heating well, comprising a heating pipe, a sliding sleeve fixedly sleeved on the outer side of the heating pipe, an outer wall of the sliding sleeve slidingly provided with an embedded outer pipe embedded in the wall for adapting to the displacement change of the heating pipe, a displacement buffer component is provided between the embedded outer pipe and the sliding sleeve, and a displacement limiting component connected to the embedded outer pipe is provided on the displacement buffer component.

[0005] According to the above technical solution, a gap is formed between the heating pipe and the sliding sleeve, a grouting hole connected to the pre-buried outer pipe is provided on the outside of the pre-buried outer pipe, and a grouting channel for slurry flow is formed between the grouting hole and the gap.

[0006] According to the above technical solution, a slurry groove is provided on the outer wall of the sliding sleeve, the grouting hole is connected to the slurry groove, and through holes connected to the gap are distributed at the bottom of the slurry groove.

[0007] According to the above technical solution, a plugging piece extending to the bottom of the slurry passage groove is fixedly connected to the inner wall of the embedded outer tube, and the end of the plugging piece is consistent with the shape of the slurry passage groove.

[0008] According to the above technical solution, a ring plate is fixedly sleeved on the outer wall of the embedded outer tube, the displacement buffer assembly includes a mounting plate fixedly connected to the sliding sleeve, a guide rod is fixedly connected to the mounting plate, the guide rod passes through the ring plate and is slidably connected thereto, and an elastic member located between the mounting plate and the ring plate is sleeved on the outer wall of the guide rod.

[0009] According to the above technical solution, the outer wall of the embedded outer tube is fixedly sleeved with a ring plate, the displacement limiting assembly includes a threaded rod connected to the displacement buffer assembly, the bottom end of the threaded rod passes through the ring plate and is movably connected to the ring plate, and the outer wall of the threaded rod is threaded with limiting nuts on both sides of the ring plate.

[0010] According to the above technical solution, the outer wall of the embedded outer tube is fixedly sleeved with an annular wing plate embedded in the wall, and both side walls of the annular wing plate are fixedly connected with rubber waterstop strips.

[0011] According to the above technical solution, sealing rings are embedded at both ends of the inner wall of the sliding sleeve, and a creep material layer is provided between the sealing rings at both ends.

[0012] According to the above technical solution, the outer wall of the heating pipe is provided with a thermal insulation layer.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model provides a pre-buried outer pipe embedded in the wall on the outer wall of the sliding sleeve, which can avoid relative displacement between the heating pipe and the sliding sleeve, so as to prevent the heating pipe from having slight displacement changes due to thermal expansion and contraction, pipe settlement and the like, thereby destroying the waterproof structure between the heating pipe and the wall sleeve and causing water seepage.

[0015] The utility model provides a displacement buffer component between the embedded outer pipe and the sliding sleeve. When a displacement deviation occurs between the heating pipe, the sliding sleeve and the embedded outer pipe due to thermal expansion and contraction, pipe settlement and the like of the heating pipe, the elastic member can provide a buffering effect on the descent of the sliding sleeve, so that the protective structure between the heating pipe and the sliding sleeve will not have an excessive pulling force.

[0016] The utility model is provided with a displacement limit assembly, which can limit the movement range of the threaded rod by adjusting the position of the limit nut on the threaded rod, thereby limiting the relative displacement between the embedded outer pipe and the sliding sleeve and the heating pipeline.

[0017] The utility model forms a grouting channel for slurry flow between the grouting hole and the gap, and grouting can be poured into the gap through the grouting channel to prevent water seepage from the wall-penetrating part of the heating pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the wall bushing of the utility model;

[0019] Figure 2 It is a cross-sectional view of the wall bushing of the utility model;

[0020] Figure 3 It is a schematic diagram of the displacement buffer component and the displacement limit component of the utility model.

[0021] In the figure:

[0022] 1. Heating pipe; 2. Sliding sleeve; 3. Pre-buried outer pipe; 4. Displacement buffer assembly; 41. Mounting plate; 42. Guide rod; 43. Elastic member; 5. Displacement limit assembly; 51. Threaded rod; 52. Limit nut; 6. Grouting hole; 7. Grouting groove; 8. Sealing member; 9. Ring plate; 11. Annular wing plate; 12. Rubber waterstop; 13. Creep material layer; 14. Insulation layer; 15. Through hole; 16. Sealing retaining ring; 17. Sealing cover. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-3 The utility model provides a technical solution of a wall-penetrating sleeve with the function of preventing water seepage in a heating well: it comprises a heating pipe 1, a sliding sleeve 2 is fixedly sleeved on the outer side of the heating pipe 1, a flange is fixedly connected to the end of the sliding sleeve 2, and a flange matching with the flange of the sliding sleeve 2 needs to be welded to the outer wall of the heating pipe 1, so as to fix the heating pipe 1 and the sliding sleeve 2 together.

[0025] The heating pipe 1 will have slight displacement changes due to thermal expansion and contraction, pipe settlement and other reasons. A pre-buried outer pipe 3 embedded in the wall is provided on the outer wall of the sliding sleeve 2, so that the sliding sleeve 2 can slide in the pre-buried outer pipe 3, thereby avoiding relative displacement between the two surfaces where the heating pipe 1 and the wall sleeve are connected, and the waterproof structure between the heating pipe 1 and the wall sleeve is destroyed, thereby causing water seepage.

[0026] The embedded outer tube 3 and the wall are in a sealed state. A displacement buffer component 4 is provided between the embedded outer tube 3 and the sliding sleeve 2 to adapt to the displacement change of the heating pipe 1 and eliminate the displacement deviation caused by thermal expansion and contraction, pipe settlement and the like. A displacement limit component 5 connected to the embedded outer tube 3 is provided on the displacement buffer component 4 to limit the relative displacement between the embedded outer tube 3 and the sliding sleeve 2 and the heating pipe 1.

[0027] Specifically, there will be a certain gap between the heating pipe 1 and the sliding sleeve 2. The outer side of the embedded outer pipe 3 is provided with a grouting hole 6 which is connected to the embedded outer pipe 3. The inner thread of the grouting hole 6 is connected with a sealing cover 17. A grouting channel for slurry flow is formed between the grouting hole 6 and the gap. Grouting can be injected into the grouting hole 6 by a grouting machine. According to the value displayed on the pressure gauge of the grouting machine, grouting is injected into the gap through the grouting channel. After the gap between the heating pipe 1 and the sliding sleeve 2 is filled with grout, the grouting is stopped. The slurry is a two-component polyurethane. The two-component polyurethane grouting material has the characteristics of high fluidity and low viscosity, is easy to grout, and has excellent strength and hardness after curing. It can be used in high temperature and high humidity environments. At the same time, it has permanent elasticity, is suitable for sealing deformed parts, can effectively cope with slight deformation of the substrate, and maintain the integrity of the waterproof layer.

[0028] Specifically, a grouting groove 7 is provided on the outer wall of the sliding sleeve 2, and the grouting hole 6 is connected to the grouting groove 7. When the embedded outer tube 3 and the sliding sleeve 2 make relative movement, under the restriction of the displacement limit assembly 5, the grouting hole 6 is always in a state of being connected to the grouting groove 7. A through hole 15 connected to the gap is distributed at the bottom of the grouting groove 7, and the slurry injected through the grouting hole 6 will flow into the gap through the through hole 15.

[0029] Specifically, the inner wall of the embedded outer tube 3 is fixedly connected with a sealing member 8 extending to the bottom of the slurry groove 7. The sealing member 8 is a silicone rubber sealing column. The end of the sealing member 8 matches the shape of the slurry groove 7. When the embedded outer tube 3 and the sliding sleeve 2 make relative movement, the part of the slurry groove 7 located inside the sliding sleeve 2 can form its own space (separated from the part of the slurry groove 7 located outside the sliding sleeve 2), thereby ensuring the internal sealing.

[0030] Specifically, the outer wall of the embedded outer tube 3 is fixedly sleeved with a ring plate 9, and the ring plate 9 and the embedded outer tube 3 are an integrally formed structure. The displacement buffer assembly 4 includes a mounting plate 41 fixedly connected to the sliding sleeve 2, and a plurality of mounting plates 41 are evenly arranged around the outer wall of the sliding sleeve 2. A guide rod 42 is fixedly connected to the mounting plate 41, and the guide rod 42 passes through the ring plate 9. A linear bearing is penetrated through the ring plate 9, and the guide rod 42 passes through the linear bearing and is slidably connected with it. When the embedded outer tube 3 and the sliding sleeve 2 make relative motion, the sliding sleeve 2 can drive the guide rod 42 to move vertically and linearly through the mounting plate 41, and the outer wall of the guide rod 42 sleeve An elastic member 43 is provided between the mounting plate 41 and the ring plate 9. The elastic member 43 is a compression spring. Under normal conditions, that is, when the heating pipe 1 does not exert a force on the sliding sleeve 2, the elastic member 43 can provide support for the sliding sleeve 2, and lift up the sliding sleeve 2 through the mounting plate 41. When a displacement deviation occurs between the heating pipe 1, the sliding sleeve 2 and the embedded outer pipe 3 due to thermal expansion and contraction of the heating pipe 1, pipe settlement, etc., the elastic member 43 can provide a buffering effect on the descent of the sliding sleeve 2, so that the protective structure between the heating pipe 1 and the sliding sleeve 2 will not have excessive pulling force.

[0031] Specifically, the outer wall of the embedded outer tube 3 is fixedly sleeved with a ring plate 9, and the displacement limiting assembly 5 includes a threaded rod 51 fixedly connected to the mounting plate 41 of the displacement buffer assembly 4. The bottom end of the threaded rod 51 passes through the ring plate 9 and is movably connected thereto, so that the threaded rod 51 and the ring plate 9 can move relative to each other. The outer wall of the threaded rod 51 is screwed with a limiting nut 52 on both sides of the ring plate 9. By adjusting the position of the limiting nut 52 on the threaded rod 51, the movement range of the threaded rod 51 is limited, thereby limiting the relative displacement between the embedded outer tube 3 and the sliding sleeve 2 and the heating pipe 1. .

[0032] Specifically, the outer wall of the embedded outer tube 3 is fixedly sleeved with an annular wing plate 11 embedded in the wall, which can improve the stability of the embedded outer tube 3. The two side walls of the annular wing plate 11 are fixedly connected with rubber waterstop strips 12 to increase the waterproof effect of the device.

[0033] Specifically, sealing rings 16 are embedded at both ends of the inner wall of the sliding sleeve 2, and a waterproof layer is formed between the two sealing rings 16. The creep material layer 13 is arranged in the waterproof layer. The creep material layer 13 is made of SBS modified asphalt waterproof material, which has excellent water resistance, weather resistance and corrosion resistance.

[0034] Specifically, the outer wall of the heating pipe 1 is provided with a heat-insulating layer 14 to improve the heat-insulating effect of the device.

[0035] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0036] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0037] Although the 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 wall casing with the function of preventing water seepage from a heating well, characterized in that: The invention comprises a heating pipe (1), wherein a sliding sleeve (2) is fixedly sleeved on the outer side of the heating pipe (1), a pre-buried outer pipe (3) pre-buried in the wall is slidably provided on the outer wall of the sliding sleeve (2), a displacement buffer component (4) for adapting to the displacement change of the heating pipe (1) is provided between the pre-buried outer pipe (3) and the sliding sleeve (2), and a displacement limit component (5) connected to the pre-buried outer pipe (3) is provided on the displacement buffer component (4).

2. A wall casing with the function of preventing water seepage from a heating well according to claim 1, characterized in that: A gap is formed between the heating pipe (1) and the sliding sleeve (2); a grouting hole (6) connected to the inside of the pre-buried outer pipe (3) is provided on the outside of the pre-buried outer pipe (3); and a grouting channel for slurry to flow is formed between the grouting hole (6) and the gap.

3. A wall casing with the function of preventing water seepage from a heating well according to claim 2, characterized in that: The outer wall of the sliding sleeve (2) is provided with a grouting groove (7), the grouting hole (6) is connected to the grouting groove (7), and through holes (15) connected to the gap are distributed at the bottom of the grouting groove (7).

4. The wall casing with the function of preventing water seepage from a heating well according to claim 3, characterized in that: A plugging piece (8) extending to the bottom of the slurry passage groove (7) is fixedly connected to the inner wall of the embedded outer tube (3), and the end of the plugging piece (8) matches the shape of the slurry passage groove (7).

5. The wall casing with the function of preventing water seepage from a heating well according to claim 1, characterized in that: The outer wall of the embedded outer tube (3) is fixedly sleeved with a ring plate (9); the displacement buffer assembly (4) comprises a mounting plate (41) fixedly connected to the sliding sleeve (2); a guide rod (42) is fixedly connected to the mounting plate (41); the guide rod (42) passes through the ring plate (9) and is slidably connected thereto; and an elastic member (43) located between the mounting plate (41) and the ring plate (9) is sleeved on the outer wall of the guide rod (42).

6. The wall casing with the function of preventing water seepage from a heating well according to claim 1, characterized in that: The outer wall of the embedded outer tube (3) is fixedly sleeved with a ring plate (9); the displacement limiting assembly (5) comprises a threaded rod (51) connected to the displacement buffer assembly (4); the bottom end of the threaded rod (51) passes through the ring plate (9) and is movably connected thereto; the outer wall of the threaded rod (51) is threadedly connected to limiting nuts (52) on both sides of the ring plate (9).

7. The wall casing with the function of preventing water seepage from a heating well according to claim 1, characterized in that: The outer wall of the embedded outer tube (3) is fixedly sleeved with an annular wing plate (11) embedded in the wall, and both side walls of the annular wing plate (11) are fixedly connected with rubber water stop strips (12).

8. The wall casing with the function of preventing water seepage from a heating well according to claim 1, characterized in that: Sealing rings (16) are embedded at both ends of the inner wall of the sliding sleeve (2), and a creeping material layer (13) is provided between the sealing rings (16) at both ends.

9. The wall casing with the function of preventing water seepage from a heating well according to claim 1, characterized in that: The outer wall of the heating pipe (1) is provided with a heat-insulating layer (14).

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