A heat preservation fixing device based on large heating pipeline for reducing heat loss

Abstract

The utility model discloses a heat preservation fixing device based on large -scale heating pipeline reduces heat loss, and the device has simple structure, low cost, and has good heat preservation performance, easy construction installation, saves material and other advantages, and simultaneously, the support is prefabricated heat preservation together with the pipeline, reduces the pipeline thermal bridge effect on the basis of providing reliable support and sliding, realizes efficient heat insulation, improves construction efficiency and quality.

Description

Technical Field

[0001] This utility model relates to the field of heating pipeline construction, and more specifically to a heat preservation and fixing device for reducing heat loss in large heating pipelines. Background Technology

[0002] In municipal long-distance heating pipeline projects, due to terrain limitations, various overhead laying methods are required for long-distance heating pipelines, including overhead tunnels and overhead pipelines crossing rivers, while also minimizing heat loss along the route. According to the "Design Code for Urban Heating Networks," pipeline support losses account for 15%-20% of total heat loss. Furthermore, the environment in which the pipelines are located also places new demands on corrosion prevention. Therefore, it is necessary to select sliding supports with both corrosion resistance and thermal insulation properties.

[0003] Currently, domestic heating pipeline insulation includes prefabricated insulation and on-site insulation. However, prefabricated insulation only insulates the pipeline itself, not the supports. During the actual installation of prefabricated insulated pipes, the insulation layer and outer sheath need to be damaged to weld the supports to the working core pipe, and then an additional insulation layer and outer sheath are added to the supports. This method suffers from poor heat dissipation due to loose connections between the inner and outer insulation layers, thermal bridging effects on the supports due to inadequate insulation measures, and inconsistent insulation materials between the pipe and the original insulation, making it difficult to achieve a tight fit and increasing heat loss from the supports. Therefore, it is difficult to achieve efficient pipeline insulation.

[0004] For example, CN222103035U discloses a direct-buried heating pipeline insulation device. This utility model discloses a direct-buried heating pipeline insulation device in the field of heating pipeline insulation technology. It includes water supply pipe fittings and a waterproof insulation component. The waterproof insulation component is installed between two sets of water supply pipe fittings, each including a heating pipeline. An elastic sealing element connects the two sets of heating pipelines. The waterproof insulation component includes a first fixing plate and a second fixing plate for connecting and fixing the two ends of the heating pipeline. The second fixing plate is located on one side of the first fixing plate. This direct-buried heating pipeline insulation device not only facilitates the operation and maintenance of direct-buried heating pipeline systems but also ensures the long-term, stable, and efficient operation of the heating pipeline through its innovative structural design. It reduces energy loss and operating costs, improves the economic efficiency of the system, and also has a positive impact on environmental protection. Therefore, this patented device makes a significant contribution to improving the overall performance and service life of heating systems. The structure of the pipeline insulation device described in this utility model is also a conventional mechanism that can be assembled and manufactured using conventional methods in this field.

[0005] For example, CN221683831U discloses a sliding support for a heating pipeline, relating to the field of pipeline support technology. A pipeline fixing mechanism is slidably mounted on the top of a base plate. Limiting sliders are installed on both sides of the pipeline fixing mechanism, and limiting pressure plates are located on both sides of the pipeline fixing mechanism. The limiting pressure plates are fixedly connected to the base plate and limit the movement of the pipeline fixing mechanism. Each limiting pressure plate has a pushing mechanism inside, and a limiting baffle is provided on the pushing mechanism. Two limiting baffles are located on both sides of the limiting slider, and a prompting rod is fixedly installed on the limiting baffle. This utility model determines the movement range of the pipeline fixing mechanism based on factors such as the material and size of the heating pipeline, so that the limiting baffle is located at the extreme value of the movement distance. When the pipeline moves beyond the movement range due to external stress or other conditions, the movement of the heating pipeline causes the limiting sliders to push the limiting baffles to rotate, pushing the prompting rod out to the outside of the limiting pressure plate. When the sliding support for the heating pipeline described in this utility model is displaced, it will damage the outer insulation layer of the pipeline and affect its insulation effect. Its structural type is also a conventional mechanism that can be assembled and manufactured by conventional means in this field. Summary of the Invention

[0006] The purpose of this utility model is to provide a heat insulation fixing device for reducing heat loss in large heating pipelines. The device has a simple structure, low cost, and advantages such as good heat insulation performance, convenient construction and installation, and material saving. At the same time, the support is prefabricated with the pipeline for insulation, which reduces the thermal bridging effect of the pipeline while providing reliable support and sliding, thereby achieving efficient heat insulation and improving construction efficiency and quality.

[0007] The objective of this utility model is achieved through the following technical solution:

[0008] A heat insulation fixing device for reducing heat loss based on large heating pipelines is characterized in that it includes a pipeline device, a first fixing device, and a second fixing device, wherein the pipeline device is connected to the first fixing device and the second fixing device.

[0009] As a further optimization of this technical solution, this utility model provides a heat insulation fixing device for reducing heat loss in large heating pipelines. The pipeline device includes a pipeline, an inner arc plate A, a positioning block A, an inner arc plate B, a bolt A, an outer anti-corrosion sleeve, an inner arc plate C, a positioning block B, an inner arc plate D, a bolt B, and a heat insulation layer. The inner arc plates A and B are both fixedly connected to the pipeline. The inner arc plate A is fixedly connected to the inner arc plate B via the positioning block A. Both the inner arc plates A and B are engaged with the bolt A. The inner arc plate C is fixedly connected to the inner arc plate D via the positioning block B. Both the inner arc plates C and D are engaged with the bolt B. The heat insulation layer is fixedly connected to the pipeline, the inner arc plate A, the positioning block A, the inner arc plate B, the outer anti-corrosion sleeve, the inner arc plate C, the positioning block B, and the inner arc plate D.

[0010] As a further optimization of this technical solution, this utility model provides a heat preservation fixing device for reducing heat loss in large heating pipelines. The first fixing device includes an arc-shaped fixing plate, a heat preservation support, fixing component A, fixing component B, fixing component C, displacement slider A, limiting slide bracket A, displacement slider B, limiting slide bracket B, and a heat preservation layer B. The arc-shaped fixing plate is fixedly connected to the heat preservation support through fixing components A and B, and fixing component C is fixedly connected to the arc-shaped fixing plate. Displacement sliders A and B are both fixedly connected to the arc-shaped fixing plate. Limiting slide brackets A and B are both fixedly connected to the heat preservation support. Displacement slider A is fixedly connected to the limiting slide bracket A, displacement slider B is fixedly connected to the limiting slide bracket B, and the heat preservation layer B is fixedly connected to the heat preservation support.

[0011] As a further optimization of this technical solution, this utility model provides a heat preservation fixing device for reducing heat loss in large heating pipelines. The components contained in the second fixing device are the same as those in the first fixing device, and their assembly method and sequence are the same as those in the first fixing device. Their operating sequence and functions are also the same as those in the first fixing device.

[0012] The present invention discloses a heat insulation fixing device for reducing heat loss in large heating pipelines. Its advantages are as follows: 1. The device has a simple structure, low cost, good heat insulation performance, convenient construction and installation, and material saving; 2. At the same time, the support is prefabricated with the pipeline for heat insulation, which reduces the thermal bridge effect of the pipeline while providing reliable support and sliding, achieving efficient heat insulation and improving construction efficiency and quality. Attached Figure Description

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 1 ;

[0015] Figure 2 This is a schematic diagram of the overall structure of this utility model. Figure 2 ;

[0016] Figure 3 This is a schematic diagram of the pipe device structure of this utility model. Figure 1 ;

[0017] Figure 4 This is a schematic diagram of the pipe device structure of this utility model. Figure 2 ;

[0018] Figure 5 This is a schematic diagram of the pipe device structure of this utility model. Figure 3 ;

[0019] Figure 6 This is a schematic diagram of the first fixing device structure of this utility model. Figure 1 ;

[0020] Figure 7 This is a schematic diagram of the first fixing device structure of this utility model. Figure 2 ;

[0021] In the diagram: Pipeline device 1; Pipe 101; Inner arc plate A102; Positioning block A103; Inner arc plate B104; Bolt A105; Outer anti-corrosion sleeve 106; Inner arc plate C107; Positioning block B108; Inner arc plate D109; Bolt B110; Insulation layer 111; First fixing device 2; Arc-shaped fixing plate 201; Insulation support 202; Fixing component A203; Fixing component B204; Fixing component C205; Displacement slider A206; Limiting slide bracket A207; Displacement slider B208; Limiting slide bracket B209; Insulation layer B210; Second fixing device 3. Specific Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings.

[0023] The fixed connection mentioned in this device refers to fixing by means of welding, thread fixing, etc. Different fixing methods are used according to different usage environments. The rotating connection refers to fixing the bearing on the shaft by mounting the bearing on the shaft or shaft hole, and setting the spring retaining ring groove on the shaft or shaft hole. The bearing is axially fixed by locking the elastic retaining ring in the retaining ring groove, so as to realize rotation, or meshing rotation between gears. Specific Implementation Example 1:

[0025] The following is combined Figure 1-7 This embodiment describes a heat insulation fixing device for reducing heat loss based on a large heating pipeline, comprising a pipeline device 1, a first fixing device 2, and a second fixing device 3, wherein the pipeline device 1 is connected to the first fixing device 2 and the second fixing device 3. Specific Implementation Example 2:

[0027] The following is combined Figure 1-7This embodiment further describes Example 1. The pipeline device 1 includes a pipeline 101, an inner arc plate A102, a positioning block A103, an inner arc plate B104, bolts A105, an outer anti-corrosion sleeve 106, an inner arc plate C107, a positioning block B108, an inner arc plate D109, bolts B110, and an insulation layer 111. The inner arc plates A102 and B104 are both fixedly connected to the pipeline 101. The inner arc plate A102 is connected to the inner arc plate B104 via the positioning block A103. 104 is fixedly connected. Inner arc plate A102 and inner arc plate B104 are both engaged with bolt A105. Inner arc plate C107 is fixedly connected to inner arc plate D109 through positioning block B108. Inner arc plate C107 and inner arc plate D109 are both engaged with bolt B110. Insulation layer 111 is fixedly connected to pipe 101, inner arc plate A102, positioning block A103, inner arc plate B104, outer anti-corrosion sleeve 106, inner arc plate C107, positioning block B108, and inner arc plate D109. Specific Implementation Example 3:

[0029] The following is combined Figure 1-7 This embodiment further describes Example 1. The first fixing device 2 includes an arc-shaped fixing plate 201, an insulation support 202, fixing members A203, B204, and C205, a displacement slider A206, a limiting slide bracket A207, a displacement slider B208, a limiting slide bracket B209, and an insulation layer B210. The arc-shaped fixing plate 201 is connected to the insulation support 202 via fixing members A203 and B204. Fixed connections are made: the fixing component C205 is fixedly connected to the arc-shaped fixing plate 201; the displacement sliders A206 and B208 are both fixedly connected to the arc-shaped fixing plate 201; the limiting slide brackets A207 and B209 are both fixedly connected to the insulation support 202; the displacement slider A206 is fixedly connected to the limiting slide bracket A207; the displacement slider B208 is fixedly connected to the limiting slide bracket B209; and the insulation layer B210 is fixedly connected to the insulation support 202. Specific Implementation Example 4:

[0031] The following is combined Figure 1-7 This embodiment further explains the first embodiment. The components included in the second fixing device 3 are all the same as those in the first fixing device 2. Their assembly method and sequence are the same as those in the first fixing device 2. Their operating sequence and functions are the same as those in the first fixing device 2.

[0032] This utility model discloses a heat insulation fixing device for reducing heat loss in large heating pipelines. Its advantages are as follows: the device is simple to manufacture and easy to install. An additional pipeline welding process is added. Before pre-embedding or installing the pipeline 101, inner arc-shaped plates A102 and C107 are pre-welded to the outer surface of the pipeline 101 before the insulation layer is foamed and filled inside the insulation pipe. The inner arc-shaped plates A102 and C107 are installed in a straight line. Several sets of positioning blocks A103 are welded to the inner arc-shaped plate B104, and several sets of positioning blocks B108 are welded to the inner arc-shaped plate D109 on the inner arc-shaped plate B104. The number of positioning blocks A103 and B108 depends on the diameter of the pipeline; the larger the pipeline diameter, the more positioning blocks are needed. The more positioning blocks A103 there are, the more likely the inner arc-shaped plates B104 and D109, which are welded with positioning blocks, will be welded onto the inner arc-shaped plates A102 and C107, respectively. Then, bolts A105 are installed and fixed in the pre-drilled threaded holes in the inner arc-shaped plates A102 and B104, and bolts B110 are installed and fixed in the pre-drilled threaded holes in the inner arc-shaped plates C107 and D109. The exposed tops of bolts A105 and B110 are then covered with protective caps or other protective layers to facilitate subsequent construction. The outer anti-corrosion sleeve 106 is prefabricated at the supplier's location. Insulation material is filled inside the pipe 101 and the outer anti-corrosion sleeve 106 at the supplier's location. Bolts A105 and B110 are then inserted from the outer anti-corrosion sleeve 106. 6. The protruding part is connected to the first fixing device 2 and the second fixing device 3 for installation. This changes the traditional method of installation that damages the pipe insulation layer, improving construction speed and quality, while also enhancing the pipe insulation effect. Taking the installation of the first fixing device 2 as an example, combined with the pipe installation process described above, the workers tear off the protective caps or protective films on the tops of bolts A105 and B110 from the previous process, insert the arc-shaped fixing plate 201 into the pre-reserved bolts in the pipe device 1, and first fasten the arc-shaped fixing plate 201 to the surface of the outer anti-corrosion sleeve 106 outside the pipe 101 through the fixing component C205. Then, the displacement sliders A206 and B208 are inserted into the outer ring of the arc-shaped fixing plate 201. In the slot, align the through holes at both ends of the insulation support 202 with bolts A105 and B110 and insert them. Then, fasten the insulation support 202 to the arc-shaped fixing plate 201 using fasteners A203 and B204. Align the slide rail of the limiting slide bracket A207 with the displacement slider A206 and insert it, fixing it inside the insulation support 202 with fasteners. Align the slide rail of the displacement slider B208 with the limiting slide bracket B209 and insert it, fixing it inside the insulation support 202 with fasteners. When the heating pipeline expands and contracts due to thermal expansion and contraction, causing local displacement, the displacement sliders A206 and B208 slide along the limiting slide brackets A207 and B209 respectively.Both walls of the sliding tracks in the limiting slide brackets A207 and B209 possess good elastic potential energy. If the pipe 101 experiences localized lateral movement, the limiting slide brackets A207 and B209 can still meet its displacement requirements, protecting the main body of the insulation support 202 from impact. This simplifies the installation and connection process and avoids damage to the insulation layer. It creates value for the project in terms of construction quality and time.

[0033] Of course, the above description is not a limitation of this utility model, and this utility model is not limited to the examples mentioned above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model are also within the protection scope of this utility model.

Claims

1. A heat-insulating fixing device for reducing heat loss based on a large heating pipe, characterized by: It includes a pipe assembly (1), a first fixing device (2), and a second fixing device (3), wherein the pipe assembly (1) is connected to the first fixing device (2) and the second fixing device (3); The pipeline device (1) includes a pipeline (101), an inner arc plate A (102), a positioning block A (103), an inner arc plate B (104), a bolt A (105), an outer anti-corrosion sleeve (106), an inner arc plate C (107), a positioning block B (108), an inner arc plate D (109), a bolt B (110), and an insulation layer (111). The inner arc plate A (102) and the inner arc plate B (104) are both fixedly connected to the pipeline (101). The inner arc plate A (102) is fixedly connected to the inner arc plate B (104) via the positioning block A (103). A (102) and inner arc plate B (104) are both engaged with bolt A (105). Inner arc plate C (107) is fixedly connected to inner arc plate D (109) through positioning block B (108). Inner arc plate C (107) and inner arc plate D (109) are both engaged with bolt B (110). Insulation layer (111) is fixedly connected to pipe (101), inner arc plate A (102), positioning block A (103), inner arc plate B (104), outer anti-corrosion sleeve (106), inner arc plate C (107), positioning block B (108), and inner arc plate D (109). The first fixing device (2) includes an arc-shaped fixing plate (201), an insulation support (202), a fixing component A (203), a fixing component B (204), a fixing component C (205), a displacement slider A (206), a limiting slide bracket A (207), a displacement slider B (208), a limiting slide bracket B (209), and an insulation layer B (210). The arc-shaped fixing plate (201) is fixedly connected to the insulation support (202) via fixing components A (203) and B (204), and the fixing component C (205) is fixedly connected to the insulation support (202). 05) Fixedly connected to the arc-shaped fixing plate (201), displacement slider A (206) and displacement slider B (208) are both fixedly connected to the arc-shaped fixing plate (201), limiting slide bracket A (207) and limiting slide bracket B (209) are both fixedly connected to the insulation support (202), displacement slider A (206) is fixedly connected to the limiting slide bracket A (207), displacement slider B (208) is fixedly connected to the limiting slide bracket B (209), and insulation layer B (210) is fixedly connected to the insulation support (202).

2. The insulation and fixing device for reducing heat loss in large heating pipelines according to claim 1, characterized in that: The components contained in the second fixing device (3) are the same as those in the first fixing device (2), and their assembly method and sequence are the same as those in the first fixing device (2). Their operation sequence and functions are the same as those in the first fixing device (2).

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