Heat supply pipeline expansion joint

Abstract

The utility model relates to heat supply pipeline connecting equipment, in particular to a heat supply pipeline expansion joint which comprises an expansion joint body and a heat preservation sleeve, the heat preservation sleeve is arranged on the outer side of the expansion joint body in a sleeved mode and comprises a heat preservation connecting pipe and a heat preservation cover, and the heat preservation connecting pipe comprises two sets of heat preservation pipes which are connected in a sliding mode. The heat preservation pipes are connected with the heat preservation connecting pipes in a sliding mode, the heat preservation covers are installed at the ends of the heat preservation connecting pipes in a sealing mode, communicating openings which are connected with heat supply pipelines in an abutting mode in a sealing mode are formed in the heat preservation covers, and fixing structures used for fixing the corresponding heat preservation covers are arranged at the ends, away from the heat preservation connecting pipes, of the two heat preservation pipes. And meanwhile, the two ends of the heat preservation connecting pipe are subjected to heat preservation sealing through the heat preservation covers correspondingly, the heat preservation covers can be selected correspondingly according to the specification of the heat supply pipeline, and therefore the problems that an existing expansion joint is directly exposed and placed in the environment, much heat is lost at the position, and heat conveying of the heat supply pipeline is affected are solved.

Description

Technical Field

[0001] The utility model relates to heating pipeline connecting equipment, in particular to a heating pipeline expansion joint. Background Art

[0002] The urban centralized heating network is a pipeline system that transports and distributes heating media from centralized heating sources to heat users. The heating network is usually composed of pipelines, expansion joints, valves, and heat exchangers. Existing expansion joints are often directly exposed to the environment, resulting in a large amount of heat loss here, affecting the heat transport of the heating pipeline. Utility Model Content

[0003] The utility model aims to provide a heating pipe expansion joint, which is used to solve the problem that the existing expansion joints are often directly exposed in the environment, resulting in a large amount of heat loss here, affecting the heat transport of the heating pipe.

[0004] To achieve the above-mentioned purpose, the utility model provides a heating pipe expansion joint, including an expansion joint body and an insulation kit, the insulation kit is sleeved on the outside of the expansion joint body, including an insulation connecting pipe and an insulation cover, the insulation connecting pipe includes two groups of slidably connected insulation pipes, one group of insulation pipes is slidably installed on the outside of the other group of insulation pipes, and one group of insulation pipes is fixedly installed on the outside of the insulation pipes, and the corresponding guide columns are slidably connected to the guide sleeves arranged at the end of the other group of insulation pipes, and the sliding strokes of the two groups of insulation pipes are adjusted by a driving member, the insulation cover is sealingly installed at the end of the insulation connecting pipe, and the insulation cover is provided with a connecting port sealed and abutted by the heating pipe, and the remote ends of the two groups of insulation pipes are respectively provided with a group of positioning rings, and the positioning rings are provided with multiple groups of positioning columns, and the positioning columns are positioned and slid with the positioning blocks on the sides of the insulation cover, and the remote ends of the two groups of insulation pipes are provided with a fixing structure for fixing the corresponding insulation cover.

[0005] As a further solution of the utility model, the insulation pipe includes two groups of insulation arc plates, one end of the two groups of insulation arc plates are hinged, and the other end is fixedly connected by fixing bolts.

[0006] As a further solution of the utility model, the driving member is a driving screw, one end of which is rotatably connected to a group of insulation pipe side walls, and the other end forms a spiral pair transmission with a fixed nut on another group of insulation pipe side walls.

[0007] As a further solution of the utility model, the thermal insulation cover comprises two groups of thermal insulation arc covers, one end of the two groups of thermal insulation arc covers are hinged, and the other end is fixedly connected by fixing bolts.

[0008] As a further solution of the utility model, the fixing structure includes a locking stud, a clamping seat and a clamping nut. The locking stud is rotatably mounted on the positioning ring. The clamping seat is fixedly mounted on one side of the thermal insulation cover and is provided with a clamping groove for clamping and limiting the locking stud. The clamping nut is threadedly connected to the end side of the locking stud and is rotatably pressed against one side of the clamping seat by the clamping nut.

[0009] Compared with the prior art, the utility model provides an insulation kit on the outside of the expansion joint body, separates the expansion joint body from the environment through the insulation kit, and slides and positions two groups of insulation pipes in the two groups of insulation kits to meet the insulation coverage of expansion joints of different lengths. At the same time, both ends of the insulation connecting pipe are respectively insulated and sealed by insulation covers. The insulation covers can be selected according to the specifications of the heating pipe, thereby avoiding the problem that the existing expansion joint is often directly exposed in the environment, resulting in more heat loss here, affecting the heat transportation of the heating pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 The utility model is a structural schematic diagram of a heating pipeline expansion joint.

[0011] Figure 2 It is a schematic diagram of the installation of the thermal insulation cover of the utility model.

[0012] Figure 3 It is a structural schematic diagram of the thermal insulation cover of the utility model.

[0013] In the attached figure: 1. Expansion joint body; 2. Heating pipe; 3. Insulation pipe; 4. Insulation cover; 5. Guide column; 6. Guide sleeve; 7. Drive screw; 8. Fixing nut; 9. Positioning column; 10. Positioning block; 11. Locking stud; 12. Compression nut; 13. Card seat; 14. Positioning ring. DETAILED DESCRIPTION

[0014] The technical solution of the utility model is further described in detail below in conjunction with specific implementation methods.

[0015] like Figure 1 and Figure 2As shown, in an embodiment of the utility model, a heating pipeline expansion joint comprises an expansion joint body 1 and an insulation kit, the insulation kit is sleeved on the outside of the expansion joint body 1, and comprises an insulation connecting pipe and an insulation cover 4, the insulation connecting pipe comprises two groups of slidably connected insulation pipes 3, one group of insulation pipes 3 is slidably installed on the outside of another group of insulation pipes 3, one group of insulation pipes 3 is fixedly installed on the outside of the insulation pipes 3, and the corresponding guide columns 5 are slidably connected to the guide sleeves 6 provided at the ends of the other group of insulation pipes 3, and the sliding strokes of the two groups of insulation pipes 3 are adjusted by a driving member, the insulation cover 4 is sealed and installed at the ends of the insulation connecting pipe, and the insulation cover 4 is provided with a connecting port sealed and abutted by the heating pipeline 2, and the remote ends of the two groups of insulation pipes 3 are respectively provided with a group of positioning rings 14, and the positioning rings 14 are provided with multiple groups of positioning columns 9, and the positioning columns 9 are positioned and slid with the positioning blocks 10 on the sides of the insulation cover 4, and the remote ends of the two groups of insulation pipes 3 are provided with a fixing structure for fixing the corresponding insulation cover 4;

[0016] In the utility model, an insulation kit is arranged on the outside of the expansion joint body 1, and the expansion joint body 1 is separated from the environment by the insulation kit, so as to reduce the heat loss of the expansion joint body 1. Specifically, the utility model arranges two groups of insulation pipes 3 with sliding connection on the outside of the insulation kit, and the lengths of the two groups of insulation pipes 3 can be adapted and adjusted according to the length of the expansion joint body 1. At the same time, insulation covers 4 are provided at the end covers on both sides of the insulation pipes 3 for sealing, wherein the insulation cover 4 is detachably connected to the end of the insulation pipe 3, and the specifications of the insulation cover 4 can be adapted according to the specifications of the heating pipe 2.

[0017] like Figure 1 and Figure 2 As shown, in the embodiment of the utility model, the insulation pipe 3 includes two groups of insulation arc plates, one end of the two groups of insulation arc plates is hinged, and the other end is fixedly connected by fixing bolts, wherein the fixing position of the fixing bolts is away from one end of the adjacent insulation pipe 3 to avoid affecting the relative sliding of the insulation pipe 3;

[0018] Furthermore, the driving member is a driving screw 7, one end of which is rotatably connected to the side wall of one group of insulation pipes 3, and the other end forms a spiral pair transmission with a fixed nut 8 on the side wall of another group of insulation pipes 3. The utility model holds the driving screw 7 and rotates it, and the threaded transmission fixed nut 8 drives the two groups of insulation pipes 3 to slide relative to each other, and during the sliding process of the insulation pipes 3, the sliding limit of the guide column 5 and the guide sleeve 6 keeps the sliding stable.

[0019] like Figure 1 , Figure 2 as well as Figure 3As shown, in the embodiment of the utility model, the thermal insulation cover 4 includes two groups of thermal insulation arc covers, one end of the two groups of thermal insulation arc covers is hinged, and the other end is fixedly connected by fixing bolts, and the installation position of the fixing bolts is far away from the positioning column 9 and the setting of the fixing structure;

[0020] Furthermore, the fixing structure includes a locking stud 11, a clamping seat 13 and a clamping nut 12. The locking stud 11 is rotatably installed on the positioning ring 14. The clamping seat 13 is fixedly installed on one side of the insulation cover 4, and is provided with a clamping groove for clamping and limiting the locking stud 11. The clamping nut 12 is threadedly connected to the end side of the locking stud 11, and is rotated and pressed against one side of the clamping seat. When the fixing structure is locked, the locking stud 11 is rotated to clamp in the clamping groove of the clamping seat 13, and the clamping nut 12 is rotated to press against one side of the clamping seat, thereby realizing the sealed abutment between the insulation pipe 3 and the insulation cover 4.

[0021] In summary, the utility model provides an insulation kit on the outside of the expansion joint body 1, separates the expansion joint body 1 from the environment through the insulation kit, and slides and positions two groups of insulation pipes 3 in the two groups of insulation kits to meet the insulation coverage of expansion joints of different lengths. At the same time, the two ends of the insulation connecting pipe are respectively insulated and sealed by insulation covers 4. The insulation cover 4 can be selected according to the specifications of the heating pipe 2, thereby avoiding the problem that the existing expansion joint is often directly exposed in the environment, resulting in more heat loss here, affecting the heat delivery of the heating pipe 2.

[0022] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A heating pipeline expansion joint, characterized in that: It includes an expansion joint body and an insulation kit, which is sleeved on the outside of the expansion joint body and includes an insulation connecting pipe and an insulation cover. The insulation connecting pipe includes two groups of slidably connected insulation pipes, one group of insulation pipes is slidably installed on the outside of the other group of insulation pipes, and multiple groups of guide columns are fixedly installed on the outside of one group of insulation pipes. The corresponding guide columns are slidably connected to the guide sleeves set at the end of the other group of insulation pipes. The sliding stroke of the two groups of insulation pipes is adjusted by a driving member. The insulation cover is seal-mounted at the end of the insulation connecting pipe. The insulation cover is provided with a connecting port sealed and abutted by a heating pipe. The remote ends of the two groups of insulation pipes are respectively provided with a group of positioning rings, and multiple groups of positioning columns are installed on the positioning rings. The positioning columns and the positioning blocks on the sides of the insulation cover are positioned and slid. The remote ends of the two groups of insulation pipes are provided with a fixing structure for fixing the corresponding insulation cover.

2. A heating pipe expansion joint according to claim 1, characterized in that: The insulation pipe comprises two groups of insulation arc plates, one end of the two groups of insulation arc plates are hinged, and the other end is fixedly connected by fixing bolts.

3. A heating pipe expansion joint according to claim 1, characterized in that: The driving member is a driving screw, one end of which is rotatably connected to a group of insulation pipe side walls, and the other end of which is connected to a fixed nut on another group of insulation pipe side walls to form a spiral pair transmission.

4. A heating pipe expansion joint according to claim 1, characterized in that: The heat-insulating cover comprises two groups of heat-insulating arc covers, one end of the two groups of heat-insulating arc covers is hinged, and the other end is fixedly connected by fixing bolts.

5. The expansion joint for a heating pipeline according to claim 1, characterized in that: The fixing structure includes a locking stud, a clamping seat and a clamping nut. The locking stud is rotatably mounted on a positioning ring. The clamping seat is fixedly mounted on one side of the insulation cover and is provided with a clamping groove for clamping and limiting the locking stud. The clamping nut is threadedly connected to the end side of the locking stud and is rotatably pressed against one side of the clamping seat.

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