A heating network compensation device with limiting and unlocking measures and a manufacturing method thereof

Abstract

The present invention discloses a heat network compensation device with limiting and unlocking measures and a manufacturing method thereof, which relates to the technical field of thermal network, wherein the structure includes a fixed end steam pipe, a movable end steam pipe and a compensator arranged between the fixed end steam pipe and the movable end steam pipe, a fixed outer sleeve is arranged between the fixed end steam pipe and the movable end steam pipe, the compensator is arranged in the outer sleeve, and an insulation layer is filled between the outer sleeve and the compensator; one end of the outer sleeve is fixed to the fixed end steam pipe, and an annular end sealing plate is arranged between the other end and the movable end steam pipe, and temporary connection parts are arranged between the annular end sealing plate and the outer sleeve, and between the annular end sealing plate and the movable end steam pipe. In view of the problem of construction accidents caused by forgetting to unlock in the prior art, the present invention uses the annular end sealing plate as a locking device, which has a large target and the end sealing plate must be removed for subsequent interface insulation operations, so the unlocking process is naturally realized, thereby greatly reducing the possibility of construction accidents caused by forgetting to unlock the compensator.

Description

Technical Field

[0001] The present invention relates to the technical field of heat pipe network, and more specifically, to a heat network compensation device with limiting and unlocking measures and a manufacturing method thereof. Background Art

[0002] There are a large number of buried steam pipes in the heat network pipeline. The working pipe of the steam pipe is at room temperature when installed, but it will rise to 180℃ to 330℃, or lower, or higher when it enters the working state. Affected by the thermal expansion and contraction characteristics of the pipe itself, the length of the pipeline shows a significant thermal expansion during this heating process. In buried pipelines several kilometers long, multiple compensators are needed to compensate and digest these thermal expansions. The buried steam pipeline adopts the form of prefabricated insulation. These compensators also need to be prefabricated with insulation materials in the jacket space and sealed with annular end sealing plates. The original compensator is pre-stretched, and a screw and ear plate assembly is provided with a tightening and locking measure to prevent the pre-stretching amount from retracting. After being installed in the heat network pipeline, the locking measures are released.

[0003] For existing steam pipe compensation structures, such as Figure 1 As shown, it includes a fixed-end steam pipe 1 and a movable-end steam pipe 2, and a compensator 3 is arranged between the fixed-end steam pipe 1 and the movable-end steam pipe 2; the compensator 3 includes an outer shell 12 fixed on the fixed-end steam pipe, and a bellows 13 is arranged between the end of the outer shell 12 away from the fixed-end steam pipe 1 and the movable-end steam pipe 2, and the outer shell 12 and the movable-end steam pipe 2 are locked by a structure of a nut 15, a screw and an ear plate 16 to ensure that the bellows 13 is always in a set compression state during the transportation and installation of the steam pipe compensation structure.

[0004] In the construction process of the prior art, firstly, since the nut and screw structure is very inconspicuous relative to the size of the steam pipe and the compensator, it often happens that workers forget to remove and unlock the nut and screw after the steam pipe compensation structure is laid, which then causes major steam pipe network operation accidents.

[0005] Secondly, the traditional way of waterproof end sealing is to fully weld the inner ring to the steam pipe and the outer ring to the outer casing. When removing the end sealing plate, it is difficult to remove it because it is close to the lower half of the working pipe, especially at the bottom. It is difficult to see the part that needs to be removed. If flame cutting is used, the steam pipe may be cut, causing a major accident. Summary of the invention

[0006] In view of the problem of construction accidents caused by forgetting to unlock and the risk of removing the end sealing plates in the prior art, the purpose of the present invention is to provide a heating network compensation device with limiting and unlocking measures. By improving the locking measures, removing irregular parts and avoiding all-round cutting of the sealing plates, and making the locking measures obvious, the purpose of reducing the production cost and difficulty and eliminating the hidden dangers in the installation process is achieved.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A heat network compensation device with limiting and unlocking measures, comprising a fixed end steam pipe, a movable end steam pipe and a compensator arranged between the fixed end steam pipe and the movable end steam pipe, characterized in that an outer sleeve is fixed between the fixed end steam pipe and the movable end steam pipe, the compensator is arranged in the outer sleeve, and an insulation layer is filled between the outer sleeve and the compensator;

[0009] One end of the outer sleeve is fixed to the fixed end steam pipe, and an annular end sealing plate is arranged between the other end and the movable end steam pipe. Temporary connection parts are arranged between the annular end sealing plate and the outer sleeve and between the annular end sealing plate and the movable end steam pipe.

[0010] By means of the above technical scheme, when in use, the compensation structure is first installed in the pipeline trench, the fixed end steam pipe and the movable end steam pipe are welded to the steam pipe on the steam pipeline to form a pipeline, and then the outer sleeve in the compensation structure is welded to the lower half of the outer sleeve on the steam pipeline, the temporary connection is destroyed, the annular sealing plate is removed, and then the outer sleeve in the compensation structure is welded to the upper half of the outer sleeve on the steam pipeline to complete the laying and installation of the compensation structure. Compared with the nut and bolt structure in the traditional structure, which is small and easy to be forgotten and cut off, the annular end sealing plate originally used as a temporary end seal is given the function of unlocking in the present application, which simplifies the construction steps and greatly reduces the possibility of construction accidents caused by forgetting to unlock the compensator; wherein, the annular end sealing plate has the following functions: first, axial positioning, the annular end sealing plate forms a temporary connection structure between the outer sleeve and the movable end steam pipe, Ensure that during transportation, the relative positions of the movable end steam pipe and the fixed end steam pipe are fixed, and the bellows always maintains an appropriate amount of compression to prevent the movable end steam pipe, compensator, and fixed end steam pipe from flying out and injuring the driver due to the large inertia of the movable end steam pipe, compensator, and fixed end steam pipe in severe cases during transportation and sudden braking; secondly, radial positioning, the annular end sealing plate is arranged between the outer sleeve and the movable end steam pipe to ensure the dimensional requirements of the concentricity of the outer sleeve and the movable end steam pipe, and at the same time prevent the damage of the bellows due to fluctuations in vehicle speed; thirdly, the annular end sealing plate seals one end of the outer sleeve to play a sealing role, effectively preventing rainwater and accumulated water in the pipeline trench from seeping into the outer sleeve during transportation, causing damage to the insulation layer; in addition, by setting a temporary connection part, it is convenient to remove the annular end sealing plate and complete the unlocking, which effectively avoids damage to the steam pipe.

[0011] In a preferred example, the present invention can be further configured as follows: the temporary connection portion includes an arc-shaped adhesive section and an arc-shaped welding section, and the arc-shaped adhesive section and the arc-shaped welding section are connected end to end to form a full-circle structure.

[0012] The arc-shaped welding section is located above the arc-shaped bonding section.

[0013] Through the above technical solution, the top is a convenient operation area, and an arc-shaped welding section is used to ensure the connection strength between the outer sleeve and the movable end steam pipe; while the bottom is a difficult area for cutting or unlocking, and an arc-shaped adhesive section is used to facilitate tearing and removing the annular end sealing plate, effectively avoiding damage to the steam pipe.

[0014] In a preferred example, the present invention may be further configured as follows: the temporary connection portion includes an annular adhesive section and a plurality of spot welding portions distributed axially.

[0015] Through the above technical solution, temporary fixing and sealing are implemented by combining spot welding and gluing.

[0016] In a preferred example, the present invention can be further configured as follows: a plurality of reinforcing and limiting components are provided between the annular end sealing plate and the movable end steam pipe.

[0017] The reinforcing and limiting assembly comprises a reinforcing and limiting rod fixed on the annular end sealing plate, and one end of the reinforcing and limiting rod away from the annular end sealing plate is welded and fixed to the movable end steam pipe.

[0018] Through the above technical solution, a reinforcing limiting component is used to enhance the connection strength and limiting firmness between the annular end sealing plate and the movable end steam pipe.

[0019] In a preferred example, the present invention can be further configured as follows: the reinforcing limit rod is arranged obliquely, and the length direction of the reinforcing limit rod is arranged at a certain angle to the length direction of the movable end steam pipe.

[0020] Through the above technical solution, the reinforcement limit rod forms a diagonal bracing structure between the annular end sealing plate and the movable end steam pipe, further enhancing the connection strength of the reinforcement limit assembly.

[0021] A method for manufacturing a heat network compensation device with limiting and unlocking measures comprises the following steps:

[0022] S1, using a tool to axially lock the fixed end steam pipe and the movable end steam pipe;

[0023] S2, remove the lugs, screws and nuts;

[0024] S3, wrapping the insulation layer around the compensator;

[0025] S4, insert the compensator together with the insulation layer and the tooling into the outer casing;

[0026] S5, installing an annular end sealing plate between the outer casing and the movable end steam pipe by spot welding and arc welding;

[0027] S6, full-length glue seals are provided between the annular end sealing plate and the outer casing, and between the annular end sealing plate and the movable end steam pipe;

[0028] S7, installing a plurality of reinforcing and limiting components between the annular end sealing plate and the movable end steam pipe;

[0029] S8, remove the tooling.

[0030] Through the above technical scheme, the annular end sealing plate in the compensation structure has the following functions: first, axial positioning, the annular end sealing plate forms a temporary connection structure between the outer sleeve and the movable end steam pipe, ensuring that the relative positions of the movable end steam pipe and the fixed end steam pipe are fixed during transportation, and the bellows always maintains a suitable compression amount to prevent the movable end steam pipe, compensator, and fixed end steam pipe from flying out and injuring the driver in severe cases during transportation due to the large inertia of the movable end steam pipe, compensator, and fixed end steam pipe in the case of emergency braking; second, radial positioning, the annular end sealing plate is arranged between the outer sleeve and the movable end steam pipe to ensure the dimensional requirements of the concentricity of the outer sleeve and the movable end steam pipe, and also prevent the damage of the bellows due to the fluctuation of vehicle speed; third, the annular end sealing plate seals one end of the outer sleeve to play a sealing role, effectively preventing rainwater and accumulated water in the pipeline trench from seeping into the outer sleeve during transportation, causing damage to the insulation layer; in addition, by setting a temporary connection part, it is convenient to remove the annular end sealing plate and complete unlocking, effectively avoiding damage to the steam pipe.

[0031] In a preferred example, the present invention can be further configured as follows: Step S6 specifically includes the following steps:

[0032] S61, welding is performed between the annular end sealing plate and the outer casing, and between the annular end sealing plate and the movable end steam pipe to form an arc-shaped welding section;

[0033] S62, applying sealant between the annular end sealing plate and the outer casing, and between the annular end sealing plate and the movable end steam pipe to form an arc-shaped adhesive joint section;

[0034] The arc-shaped adhesive joint section and the arc-shaped welding section are connected end to end to form a full-circle structure.

[0035] Through the above technical solution, the temporary connection has high connection strength and strong stability, and can effectively avoid damage to the steam pipe during disassembly.

[0036] In a preferred example, the present invention can be further configured as follows: Step S6 specifically includes the following steps:

[0037] S61, performing spot welding between the annular end sealing plate and the outer casing, and between the annular end sealing plate and the movable end steam pipe, to form a plurality of spot welding portions;

[0038] S62, apply sealant between the annular end sealing plate and the outer casing, and between the annular end sealing plate and the movable end steam pipe to form an annular bonding section.

[0039] Through the above technical solution, the temporary connection part can be destroyed by grinding and tearing, without the need for complicated disassembly tools, which makes subsequent disassembly work more convenient.

[0040] In summary, the present invention includes at least one of the following beneficial technical effects:

[0041] (1) The annular end seal plate, which was originally used as a temporary end seal, is now also given an unlocking function, which simplifies the construction steps and greatly reduces the possibility of construction accidents caused by forgetting to unlock the compensator;

[0042] (2) The annular end sealing plate has the following functions: First, axial positioning. The annular end sealing plate forms a temporary connection structure between the outer sleeve and the movable end steam pipe to ensure that the relative positions of the movable end steam pipe and the fixed end steam pipe are fixed during transportation, and the bellows always maintains an appropriate amount of compression to prevent the movable end steam pipe, compensator, and fixed end steam pipe from flying out and injuring the driver in severe cases during transportation due to the large inertia of the movable end steam pipe, compensator, and fixed end steam pipe in the event of emergency braking; Second, radial positioning. The annular end sealing plate is arranged between the outer sleeve and the movable end steam pipe to ensure that the concentricity of the outer sleeve and the movable end steam pipe meets the dimensional requirements, and at the same time prevents the bellows from being damaged due to fluctuations in vehicle speed; Third, the annular end sealing plate seals one end of the outer sleeve to play a sealing role, effectively preventing rainwater and accumulated water in the pipeline trench from seeping into the outer sleeve during transportation, causing damage to the insulation layer;

[0043] (3) By setting up a temporary connection part, it is convenient to remove the annular end sealing plate and complete the unlocking, thereby effectively avoiding damage to the steam pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is a structural diagram of the existing steam pipe compensation;

[0045] Figure 2 is a structural schematic diagram of embodiment 1;

[0046] Figure 3 is an end view of the first embodiment;

[0047] Figure 4 It is an end view of the second embodiment.

[0048] Figure numerals: 1. fixed end steam pipe; 2. movable end steam pipe; 3. compensator; 4. outer sleeve; 5. insulation layer; 6. annular end sealing plate; 7. arc-shaped glued section; 8. arc-shaped welding section; 9. spot welding part; 10. reinforcement limit rod; 11. annular glued section; 12. outer shell; 13. bellows; 14. guide sleeve; 15. nut; 16. ear plate. DETAILED DESCRIPTION

[0049] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0050] Embodiment 1:

[0051] A heating network compensation device with limiting and unlocking measures, such as Figure 2 and Figure 3As shown, it includes a fixed-end steam pipe 1, a movable-end steam pipe 2 and a compensator 3 arranged between the fixed-end steam pipe 1 and the movable-end steam pipe 2, an outer sleeve 4 is fixed between the fixed-end steam pipe 1 and the movable-end steam pipe 2, the compensator 3 is arranged in the outer sleeve 4, and an insulation layer 5 is filled between the outer sleeve 4 and the compensator 3, and the insulation layer 5 is insulation cotton. A sealing plate is welded and fixed between one end of the outer sleeve 4 and the fixed-end steam pipe 1, and an annular end sealing plate 6 is arranged between the other end and the movable-end steam pipe 2. Temporary connecting parts are arranged between the annular end sealing plate 6 and the outer sleeve 4, and between the annular end sealing plate 6 and the movable-end steam pipe 2. A temporary fixed structure is formed between the fixed-end steam pipe 1 and the movable-end steam pipe 2 through the annular end sealing plate 6, the outer sleeve 4 and the temporary connecting part, thereby ensuring the stability of the compensation structure during transportation.

[0052] When in use, first install the heat network insulation compensation device in the pipeline trench, weld and fix the fixed end steam pipe 1 and the movable end steam pipe 2 to the steam pipe on the steam pipeline, and then weld and fix the outer sleeve 4 in the compensation structure to the lower half of the outer sleeve 4 on the steam pipeline, destroy the temporary connection, remove the annular sealing plate, and then weld and fix the outer sleeve 4 in the compensation structure to the upper half of the outer sleeve 4 on the steam pipeline to complete the laying and installation of the compensation structure. Compared with the nut 15 bolt structure in the traditional structure, the target is small and easy to be forgotten and cut off. In this application, the annular end sealing plate 6 originally used as a temporary end seal is given the function of unlocking. While simplifying the construction steps, it also greatly reduces the construction accidents caused by forgetting to unlock the compensator 3. The end of the outer sleeve 4 needs to be welded later. When the workers are constructing, they will observe the annular end sealing plate 6 that needs to be removed at the end, which greatly reduces the construction accidents caused by forgetting to unlock the compensator 3.

[0053] Among them, the annular end sealing plate 6 has the following functions: first, axial positioning, a temporary connection is formed between the outer sleeve 4 and the movable end steam pipe 2 to ensure that the relative positions of the movable end steam pipe 2 and the fixed end steam pipe 1 are fixed during transportation, and the bellows 13 always maintains an appropriate amount of compression to prevent the movable end steam pipe 2, the compensator 3, and the fixed end steam pipe 1 from flying out and injuring the driver in severe cases during transportation due to the large inertia of the movable end steam pipe 2, the compensator 3, and the fixed end steam pipe 1 in the case of emergency braking; second, radial positioning, the annular end sealing plate 6 is arranged between the outer sleeve 4 and the movable end steam pipe 2 to ensure the dimensional requirements of the concentricity of the outer sleeve 4 and the movable end steam pipe 2, and at the same time prevent the bellows 13 from being damaged due to fluctuations in vehicle speed; third, the annular end sealing plate 6 seals one end of the outer sleeve 4 to form a sealing structure, which effectively prevents rainwater and accumulated water in the pipeline trench from seeping into the outer sleeve 4 during transportation, causing damage to the insulation layer 5.

[0054] The temporary connection part is a full-circle structure, including an arc-shaped adhesive section 7 formed by extrusion coating and an arc-shaped welding section 8 formed by welding with welding rods. The arc-shaped welding section 8 is located in the clockwise interval from four o'clock to eight o'clock. The arc-shaped adhesive section 7 and the arc-shaped welding section 8 are connected end to end to form a full-circle structure, and the arc-shaped welding section 8 is located above the arc-shaped adhesive section 7. When in use, the arc-shaped welding section 8 is cut by flame cutting, and the arc-shaped welding section 8 is located above, with a wide line of sight and a large operating space, which is convenient for cutting operations; the arc-shaped adhesive section 7 is located at the bottom of the pipeline trench, and the bottom space is narrow, which is not convenient for cutting operations, so the arc-shaped adhesive section 7 is broken by tearing, and the annular end sealing plate 6 is removed to complete the unlocking operation. To ensure the sealing performance, if necessary, the arc-shaped welding section 8 is also coated with sealant to ensure the sealing performance of the arc-shaped welding section 8.

[0055] A plurality of reinforcing limit assemblies are arranged between the annular end sealing plate 6 and the movable end steam pipe 2, and the reinforcing limit assemblies include a reinforcing limit rod 10 fixed on the annular end sealing plate 6, and one end of the reinforcing limit rod 10 away from the annular end sealing plate 6 is welded to the movable end steam pipe 2, and the length direction of the reinforcing limit rod 10 is arranged at a certain angle to the length direction of the movable end steam pipe 2, forming a diagonal bracing structure to further enhance the locking strength.

[0056] Embodiment 2:

[0057] A heating network compensation device with limiting and unlocking measures, such as Figure 4 As shown, the difference from the first embodiment is that the temporary connection portion includes a plurality of spot welding portions 9 arranged circumferentially, and the plurality of spot welding portions 9 are arranged in a circular array, the spot welding portions 9 are formed by spot welding with welding rods, and sealant is applied between the annular end sealing plate 6 and the outer sleeve 4, and between the annular end sealing plate 6 and the movable end steam pipe 2 to form an annular bonding section 11. When dismantling, the spot welding portion 9 is broken by knocking, and the arc-shaped bonding section 7 is torn off to complete the unlocking work.

[0058] A method for manufacturing a heat network compensation device with limiting and unlocking measures comprises the following steps:

[0059] S1, using Figure 1 The existing compensator 3 is modified, the tooling is installed, and the relative positions of the fixed end steam pipe 1 and the movable end steam pipe 2 are locked;

[0060] S2, remove the ear plate 16, the screw and the nut 15;

[0061] S3, wrapping the 3 sides of the compensator with thermal insulation cotton to form a thermal insulation layer 5;

[0062] S4, wrap the insulation layer 5 with glass fiber cloth, insert the compensator 3 together with the insulation layer 5 and the tooling into the outer sleeve 4, and arrange the glass fiber cloth to facilitate the outer sleeve 4 to be sleeved on the insulation layer 5;

[0063] S5, installing the annular end sealing plate 6 in the outer sleeve 4.

[0064] S6, temporary connection parts are provided between the annular end sealing plate 6 and the outer casing 4, and between the annular end sealing plate 6 and the movable end steam pipe 2;

[0065] There are two ways to set up the temporary connection part. One way is: step S6 specifically includes the following steps:

[0066] S61, welding is performed between the annular end sealing plate 6 and the outer casing 4, and between the annular end sealing plate 6 and the movable end steam pipe 2 to form an arc-shaped welding section 8;

[0067] S62, applying sealant between the annular end sealing plate 6 and the outer sleeve 4, and between the annular end sealing plate 6 and the movable end steam pipe 2 to form an arc-shaped adhesive section 7, and the arc-shaped adhesive section 7 and the arc-shaped welding section 8 are connected at the end to form a full circle structure.

[0068] This temporary connection has high connection strength and strong stability, and can effectively avoid damage to the steam pipe during disassembly.

[0069] Another way is: step S6 specifically includes the following steps:

[0070] S61, spot welding is performed between the annular end sealing plate 6 and the outer sleeve 4, and between the annular end sealing plate 6 and the movable end steam pipe 2 to form a plurality of spot welding portions 9, wherein the plurality of spot welding portions 9 are distributed in a circular array;

[0071] S62, applying sealant between the annular end sealing plate 6 and the outer casing 4, and between the annular end sealing plate 6 and the movable end steam pipe 2, to form an annular bonding section 11.

[0072] This temporary connection makes subsequent disassembly easier, requiring only knocking and tearing, without the need for complicated disassembly tools.

[0073] S7, installing a plurality of reinforcing and limiting components between the annular end sealing plate 6 and the movable end steam pipe 2;

[0074] S8, dismantle the tooling and complete the production of the heat network insulation compensation device.

[0075] In summary:

[0076] When the present invention is used, compared with the nut 15 and bolt structure in the traditional structure, which is smaller and easier to be forgotten and cut off, the annular end seal plate 6 originally used as a temporary end seal in the present application is also given the function of unlocking, which simplifies the construction steps and greatly reduces the construction accidents caused by forgetting to unlock the compensator 3, thereby greatly reducing the construction accidents caused by forgetting to unlock the compensator 3.

[0077] The annular end sealing plate 6 has the following functions: first, axial positioning. The annular end sealing plate 6 forms a temporary connection structure between the outer sleeve 4 and the movable end steam pipe 2 to ensure that the relative positions of the movable end steam pipe 2 and the fixed end steam pipe 1 are fixed during transportation, and the bellows 13 always maintains a suitable compression amount to prevent the movable end steam pipe 2, the compensator 3, and the fixed end steam pipe 1 from flying out and injuring the driver in the event of an emergency brake due to the large inertia of the movable end steam pipe 2, the compensator 3, and the fixed end steam pipe 1 during transportation; second, radial positioning. To position the outer sleeve 4, the annular end sealing plate 6 is arranged between the outer sleeve 4 and the movable end steam pipe 2 to ensure the dimensional requirements of the concentricity of the outer sleeve 4 and the movable end steam pipe 2, while also preventing the damage of the bellows 13 due to the fluctuation of vehicle speed; thirdly, the annular end sealing plate 6 seals one end of the outer sleeve 4 to play a sealing role, effectively preventing rainwater during transportation and accumulated water in the pipeline trench from seeping into the outer sleeve 4, causing damage to the insulation layer 5; by setting a temporary connection part, it is convenient to remove the annular end sealing plate 6, complete the unlocking, and effectively avoid damage to the steam pipe.

[0078] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A heating network compensation device with limiting and unlocking measures, comprising a fixed end steam pipe (1), a movable end steam pipe (2), and a compensator (3) arranged between the fixed end steam pipe (1) and the movable end steam pipe (2), characterized in that: An outer sleeve (4) is fixed between the fixed end steam pipe (1) and the movable end steam pipe (2), the compensator (3) is arranged in the outer sleeve (4), and a heat insulation layer (5) is filled between the outer sleeve (4) and the compensator (3); One end of the outer sleeve (4) is fixed to the fixed end steam pipe (1), and an annular end sealing plate (6) is provided between the other end and the movable end steam pipe (2), and temporary connection parts are provided between the annular end sealing plate (6) and the outer sleeve (4), and between the annular end sealing plate (6) and the movable end steam pipe (2); The temporary connection portion comprises an arc-shaped adhesive section (7) and an arc-shaped welding section (8), wherein the arc-shaped adhesive section (7) and the arc-shaped welding section (8) are connected end to end to form a full circular structure; the arc-shaped welding section (8) is located above the arc-shaped adhesive section (7); Alternatively, the temporary connection portion comprises an annular adhesive section (11) and a plurality of axially distributed spot welding portions (9); A plurality of reinforcing limiter assemblies are provided between the annular end sealing plate (6) and the movable end steam pipe (2); the reinforcing limiter assemblies include a reinforcing limiter rod (10) fixed to the annular end sealing plate (6), and one end of the reinforcing limiter rod (10) away from the annular end sealing plate (6) is welded and fixed to the movable end steam pipe (2).

2. A heating network compensation device with limiting and unlocking measures according to claim 1, characterized in that: The reinforcing limit rod (10) is arranged at an angle, and the length direction of the reinforcing limit rod (10) is arranged at a certain angle to the length direction of the movable end steam pipe (2).

3. A method for manufacturing a heating network compensation device with limiting and unlocking measures according to any one of claims 1-2, characterized in that: The steps include: S1, using a tool to axially lock the fixed end steam pipe (1) and the movable end steam pipe (2); S2, remove the ear plate (16), the screw and the nut (15); S3, coating the compensator (3) with a thermal insulation layer (5); S4, inserting the compensator (3) together with the insulation layer (5) and the tooling into the outer sleeve (4); S5, installing an annular end sealing plate (6) on the outer sleeve (4); S6, temporary connection parts are provided between the annular end sealing plate (6) and the outer casing (4), and between the annular end sealing plate (6) and the movable end steam pipe (2); S7, installing a plurality of reinforcing and limiting components between the annular end sealing plate (6) and the movable end steam pipe (2); S8, remove the tooling.

4. The manufacturing method of a heating network compensation device with limiting and unlocking measures according to claim 3 is characterized in that: Step S6 specifically includes the following steps: S61, welding is performed between the annular end sealing plate (6) and the outer casing (4), and between the annular end sealing plate (6) and the movable end steam pipe (2), to form an arc-shaped welding section (8); S62, applying sealant between the annular end sealing plate (6) and the outer sleeve (4), and between the annular end sealing plate (6) and the movable end steam pipe (2), to form an arc-shaped adhesive joint section (7); The arc-shaped adhesive joint section (7) and the arc-shaped welding section (8) are connected end to end to form a full circular structure.

5. The manufacturing method of a heating network compensation device with limiting and unlocking measures according to claim 3 is characterized in that: Step S6 specifically includes the following steps: S61, spot welding is performed between the annular end sealing plate (6) and the outer casing (4), and between the annular end sealing plate (6) and the movable end steam pipe (2), to form a plurality of spot welding portions (9); S62, applying sealant between the annular end sealing plate (6) and the outer casing (4), and between the annular end sealing plate (6) and the movable end steam pipe (2), to form an annular adhesive joint section (11).

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