Compensator for heating pipes

Abstract

The utility model discloses a kind of compensators for heating pipeline, belong to heating pipeline technical field, including bellows, bellows includes liquid inlet flange piece connected at its one end, flow guide cylinder is inserted in bellows, the side of flow guide cylinder is connected with limit ring, and the liquid inlet flange piece is internally provided with the limit ring compatible limit mouth. Multiple positioning members are provided in limit ring, multiple positioning members are inserted with liquid inlet flange piece, limit ring is provided with driving element, and driving element can drive multiple positioning members from liquid inlet flange piece in one time. The utility model provides a kind of compensators for heating pipeline, can directly take out flow guide cylinder from compensator for heating pipeline and clean, avoid the impurity cleaned again to return into compensator for heating pipeline, prevent the emergence of secondary pollution situation, help the long-term stable operation of bellows compensator, while it is favorable to the protection of bellows compensator internal environment.

Description

Technical Field

[0001] This utility model belongs to the field of heating pipeline technology, specifically, it relates to a compensator for heating pipelines. Background Technology

[0002] In heating pipeline systems, bellows compensators are a key component, characterized by their thin walls and low-frequency fatigue characteristics. This structural feature causes the peaks and troughs of the bellows compensator to be under high stress for extended periods, making them prone to fatigue failure even with relatively few cycles. Particularly in complex heating pipeline routes, multiple factors exacerbate the fatigue risk of bellows compensators. Specifically, the physical properties of the transported medium, airflow pulsation, frequent valve opening and closing, stress concentration at pipeline branch nodes, resistance changes at bends, and the particularly prominent water hammer effect (i.e., steam-water impact) all induce variable-frequency vibrations in the pipeline, thereby causing fatigue damage to the bellows compensator.

[0003] To mitigate the direct impact of fluid flow on bellows compensators in pipelines, existing technologies commonly employ welding a flow guide tube inside the bellows. As a cylindrical structure, the flow guide tube, through optimized internal flow channel design, can guide the fluid from a flow pattern that directly impacts the pipe or equipment surface to a smooth flow along the inner wall of the tube, thereby effectively dispersing the fluid's kinetic energy and reducing the impact intensity on the bellows compensator.

[0004] However, this technical solution still faces several challenges in practical applications. The fluid medium (such as hot water or steam) in heating systems often contains solid particles, dust, or other impurities. During continuous fluid flow, these impurities easily deposit inside the guide tube, forming an accumulation. Accumulated impurities not only significantly increase fluid flow resistance and reduce system operating efficiency, but also require regular cleaning and maintenance. Traditional cleaning methods typically involve disassembling the flange at the connection between the compensator and the pipeline and using a mild detergent and soft brush for internal cleaning. However, due to the fixed connection between the guide tube and the inner wall of the bellows, impurities that detach during cleaning can easily fall into the bellows compensator, causing secondary pollution and posing a potential threat to the long-term stable operation of the bellows compensator, while also failing to meet environmental protection requirements. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a compensator for heating pipelines.

[0006] To achieve the aforementioned objectives, the technical solution adopted by this utility model includes: A bellows includes an inlet flange connected to one end thereto, a guide tube inserted inside the bellows, a limit ring connected to one side of the guide tube, and a limit port adapted to the limit ring inside the inlet flange.

[0007] The limiting ring is provided with multiple positioning elements, which are inserted into the liquid inlet flange. The limiting ring is provided with a driving element, which can drive multiple positioning elements to be pulled out of the liquid inlet flange at one time.

[0008] In this invention, the limiting ring abuts against the inlet flange, and the positioning element restricts the movement of the limiting ring, allowing the guide tube to be removed from the inside of the compensator for heating pipelines. Compared with the prior art, when it is necessary to clean impurities, the guide tube can be directly removed from the compensator for cleaning, avoiding the impurities from returning to the compensator and preventing secondary pollution. This helps the long-term stable operation of the bellows compensator and also helps protect the internal environment of the bellows compensator.

[0009] In this invention, the driving component can simultaneously control multiple positioning components to be pulled out or inserted from the inlet flange, enabling the guide tube to be quickly connected or separated from the bellows compensator. This simplifies the steps of removing or installing the guide tube from the bellows compensator, improves the cleaning efficiency of the bellows compensator, and reduces the impact on the normal use of the bellows compensator.

[0010] Preferably, the plurality of positioning components include a plurality of limiting blocks slidably disposed within the limiting ring, and the liquid inlet flange has a limiting port matching the number of the limiting blocks. When the plurality of the limiting blocks are inserted into the limiting port, the position of the guide tube is fixed.

[0011] In this invention, multiple limiting blocks are inserted into the liquid inlet flange, ensuring that the limiting ring fits tightly against the liquid inlet flange at all points, thereby improving the connection stability between the liquid inlet flange and the limiting ring.

[0012] Preferably, the limiting ring has multiple mounting holes, the limiting block is slidably disposed in the mounting hole at the corresponding position, and a limiting spring is connected to one side of the limiting block, the limiting spring being connected to the inner wall of the mounting hole.

[0013] In this invention, when the limiting block is connected to the limiting port, the limiting spring is in a normal state, and the limiting block is restricted by the elastic force of the limiting spring, so that the limiting block can be stably connected to the limiting port. When the driving component drives the limiting block to move, the limiting spring is in a contracted state, which can provide assistance when installing the guide tube later.

[0014] Preferably, the driving component includes a take-up piece disposed within a limiting ring, and each of the plurality of limiting blocks has a driven port for connecting with the take-up piece.

[0015] Preferably, the driving component further includes a winding roller rotatably connected within a limiting ring, and both ends of the take-up sheet are fixedly connected to the winding roller.

[0016] In this invention, the winding sheet is tightened by winding at both ends, which can squeeze the driven port so that multiple limiting blocks are pulled out from the limiting port, thereby changing the guide tube from the limited state to the movable state, making it convenient to remove the guide tube from the inside of the compensator for the heating pipeline.

[0017] Preferably, the winding roller includes a drive shaft fixedly connected thereto, the drive shaft is rotatably connected to a limiting ring, the limiting ring has a drive port, and a handle is fixedly connected to one end of the drive shaft extending into the drive port.

[0018] Compared with the prior art, the advantages of this utility model include: (1) The compensator for heating pipelines provided by this utility model has a simple structure and is easy to maintain; (2) The present invention provides a compensator for heating pipelines, which can directly remove the guide tube from the compensator for heating pipelines for cleaning, avoid the impurities removed from the compensator for heating pipelines from returning to the compensator for heating pipelines, prevent secondary pollution, help the long-term stable operation of the corrugated pipe compensator, and at the same time help protect the internal environment of the corrugated pipe compensator. (3) The present invention provides a compensator for heating pipelines, which enables the guide tube to be quickly connected or separated from the corrugated pipe compensator, simplifies the steps of taking the guide tube out of the corrugated pipe compensator or installing it, improves the cleaning efficiency of the corrugated pipe compensator, and reduces the impact on the normal use of the corrugated pipe compensator. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is an exploded view of a compensator for a heating pipeline according to this utility model; Figure 2 This is a schematic cross-sectional view of the corrugated pipe in this utility model. Figure 3 This is a schematic diagram of the take-up sheet in this utility model; Figure 4 for Figure 3 Enlarged view of the structure at point A in the middle; Figure 5 This is a schematic diagram of the connection structure between the liquid inlet flange and the positioning ring in this utility model.

[0021] Figure label: 1. Outlet flange; 2. Bellows; 3. Inlet flange; 4. Flow guide; 5. Limiting ring; 6. Limiting block; 7. Rewinding sheet; 8. Limiting spring; 9. Handle; 10. Winding roller. Detailed Implementation

[0022] In view of the shortcomings of the prior art, the inventor of this utility model has, through long-term research and extensive practice, proposed the technical solution of this utility model. The following will further explain and illustrate the technical solution, its implementation process, and its principles in conjunction with the accompanying drawings and specific implementation examples.

[0023] It should be noted that the embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. The described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, the present invention covers any substitutions, modifications, equivalent methods and solutions made within the spirit, principles and scope of the present invention as defined by the claims. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Furthermore, to provide the public with a better understanding of this utility model, certain specific details are described in detail in the following description. However, those skilled in the art can fully understand this utility model even without these detailed descriptions.

[0025] Example 1: Please refer to Figure 1 and Figure 2 This embodiment discloses a compensator for heating pipelines, including a corrugated pipe 2.

[0026] Specifically, one end of the bellows 2 is fixedly connected to an outlet flange 1, which is used to connect to the output end of the heating pipeline, and the other end of the bellows 2 is fixedly connected to an inlet flange 3, which is used to connect to the input end of the heating pipeline.

[0027] It should be noted that there are two outlet flanges 1 and two inlet flanges 3. The other outlet flange 1 is connected to the output end of the heating pipe, and the other inlet flange 3 is connected to the input end of the heating pipe. The two outlet flanges 1 and the two inlet flanges 3 are fixed together by bolts.

[0028] Specifically, a limiting port is opened inside the liquid inlet flange 3, and a limiting ring 5 is inserted into the limiting port. A guide tube 4 is fixedly connected to one side of the limiting ring 5, and the guide tube 4 is inserted into the inside of the bellows 2.

[0029] In this embodiment, when the hot liquid from the heating pipeline enters the bellows 2 through the inlet flange 3, it will come into contact with the guide tube 4 and enter the bellows 2 along the guiding direction of the inner wall of the guide tube 4. The guide tube 4 first contacts the hot liquid at the end of the bellows 2, so that the impact force generated by the flow of the hot liquid is directly guided to the guide tube 4, thereby effectively reducing the impact intensity of the hot liquid on the bellows 2, preventing damage to the pipe wall of the bellows 2, and thus extending the service life of the compensator for the heating pipeline.

[0030] Please see Figure 3 , Figure 4 and Figure 5 This embodiment discloses a compensator for heating pipelines, including positioning components and driving components. The driving components can drive multiple positioning components to be pulled out from the liquid inlet flange 3 at one time.

[0031] Specifically, the positioning component includes six mounting ports opened in the limiting ring 5, each mounting port is slidably connected to a limiting block 6, the liquid inlet flange 3 is provided with a limiting port that matches the number of limiting blocks 6, and a limiting spring 8 is fixedly connected to one side of each limiting block 6, the limiting spring 8 is fixedly connected to the inner wall of the mounting port.

[0032] In this embodiment, the positions of the limiting ring 5 and the guide tube 4 can be fixed by inserting the limiting block 6 into the limiting port.

[0033] Specifically, the driving component includes an annular driving groove opened in the limiting ring 5, six mounting ports are all connected to the driving groove and are equidistantly arranged on the driving groove, a take-up sheet 7 is provided in the driving groove, and a driven port for connecting to the take-up sheet 7 is opened in each of the multiple limiting blocks 6. After the two ends of the take-up sheet 7 pass through the driven port, the two ends of the take-up sheet 7 are fixedly connected to a winding roller 10. The winding roller 10 includes a driving shaft fixedly connected to it. The driving shaft is rotatably connected to the limiting ring 5. A driving port is opened in the limiting ring 5, and a handle 9 is fixedly connected to one end of the driving shaft that extends into the driving port.

[0034] In this embodiment, the specific implementation method for removing and cleaning the guide tube 4 is as follows: S1. Remove the bolts connecting the two inlet flanges 3 and separate the two inlet flanges 3 so that the end of the heating pipeline compensator with the guide tube 4 is exposed. S2. In the initial state, the take-up sheet 7 is in a relaxed state. Apply force to the handle 9 so that the winding roller 10 can take up the take-up sheet 7 connected to it. During the process of the take-up sheet 7 being tightened, it will squeeze the driven port so that the limit block 6 is pulled out from the limit port, causing the limit spring 8 to be deformed by force. At this time, apply force to the guide tube 4 to remove it and clean the impurities. S3. After cleaning, insert the guide tube 4 back into the bellows 2 and reset the limiting ring 5. Release the handle 9, and the limiting block 6 will move and reset by the elastic force of the limiting spring 8 and be locked into the corresponding limiting port. S4. Finally, reconnect the two inlet flanges 3 with bolts, and the heating pipeline compensator can be put back into use.

[0035] It should be understood that the above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. It should not be considered that the specific implementation of this utility model is limited to these descriptions. For those skilled in the art to which this utility model pertains, several simple deductions or substitutions can be made without departing from the concept of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A compensator for heating pipelines, characterized in that, The bellows (2) includes an inlet flange (3) connected to one end of the bellows (2), a guide tube (4) is inserted inside the bellows (2), a limit ring (5) is connected to one side of the guide tube (4), and a limit port adapted to the limit ring (5) is opened inside the inlet flange (3). The limiting ring (5) is provided with multiple positioning elements, which are inserted into the liquid inlet flange (3). The limiting ring (5) is provided with a driving element, which can drive multiple positioning elements to be pulled out of the liquid inlet flange (3) at one time.

2. The compensator for heating pipelines according to claim 1, characterized in that: The multiple positioning components include multiple limiting blocks (6) that are slidably disposed in the limiting ring (5). The liquid inlet flange (3) has a limiting port that matches the number of the limiting blocks (6). When the multiple limiting blocks (6) are inserted into the limiting port, the position of the guide tube (4) is fixed.

3. A compensator for heating pipelines according to claim 2, characterized in that: The limiting ring (5) has multiple mounting ports, and the limiting block (6) is slidably disposed in the mounting port at the corresponding position. A limiting spring (8) is connected to one side of the limiting block (6), and the limiting spring (8) is connected to the inner wall of the mounting port.

4. A compensator for a heating pipeline according to claim 2, characterized in that: The driving component includes a take-up piece (7) disposed within a limiting ring (5), and each of the multiple limiting blocks (6) has a slave port for connecting with the take-up piece (7).

5. A compensator for a heating pipeline according to claim 4, characterized in that: The driving component also includes a winding roller (10) rotatably connected within the limiting ring (5), and both ends of the take-up sheet (7) are fixedly connected to the winding roller (10).

6. A compensator for a heating pipeline according to claim 5, characterized in that: The winding roller (10) includes a drive shaft fixedly connected thereto. The drive shaft is rotatably connected to a limiting ring (5). A drive port is provided inside the limiting ring (5). A handle (9) is fixedly connected to one end of the drive shaft extending into the drive port.

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