A cleaning assembly for a heat exchanger

Abstract

This utility model relates to the field of heat exchanger cleaning and discloses a cleaning assembly for heat exchangers, including a main pipe. A limiting block is elastically connected to the inner wall of the front side of the main pipe via a spring. An extension pipe is slidably connected to the outer wall of the main pipe. An arc-shaped groove and a sliding groove are formed on the inner wall of the extension pipe, and a limiting groove is formed on the inner wall of the extension pipe. An installation block is fixedly connected to the left side of the extension pipe, and a nozzle is provided on the installation block. A conical head is fixedly connected to the left side of the installation block. In this utility model, by pushing the extension pipe to slide along the outer wall of the main pipe, the limiting block slides along the arc-shaped groove and the sliding groove of the extension pipe under the elastic force of the spring. When it slides to a suitable position, the limiting block engages in the corresponding limiting groove, thus fixing the length of the main pipe and the extension pipe. The length can be changed to meet the cleaning needs of different pipe lengths.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger cleaning, and in particular to a cleaning component for heat exchangers. Background Technology

[0002] A heat exchanger, also known as a heat exchanger, is a device that transfers part of the heat from a hot fluid to a cold fluid. It allows heat to be transferred from a higher-temperature fluid to a lower-temperature fluid, enabling the fluid temperature to reach the specified parameters of the process and meet the requirements of the process conditions. It is one of the main devices for improving energy utilization efficiency.

[0003] During long-term operation, heat exchanger pipes can accumulate impurities, scale, corrosion products, etc. in the fluid, which can affect heat transfer efficiency and even cause blockages. Therefore, regular cleaning is essential.

[0004] Existing methods for cleaning heat exchangers involve using water pipes equipped with nozzles to penetrate deep into the heat exchanger's pipes. However, the water pipes are not strong enough and have limited ability to pass through impurities with slightly higher hardness, resulting in poor cleaning performance. Therefore, a cleaning component for heat exchangers is proposed to address these issues. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a cleaning component for heat exchangers, which aims to improve the problem of unsatisfactory cleaning effect in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a cleaning assembly for a heat exchanger, comprising a main pipe, a limiting block elastically connected to the inner wall of the front side of the main pipe by two springs, an extension pipe slidably connected to the outer wall of the main pipe, an arc-shaped groove and a sliding groove formed on the inner wall of the extension pipe, a limiting groove formed on the inner wall of the extension pipe, an installation block fixedly connected to the left side of the extension pipe, a nozzle provided on the installation block, a conical head fixedly connected to the left side of the installation block, a support assembly provided on the outer wall of the extension pipe, the support assembly being used for the movement of the extension pipe, and a limiting assembly provided on the upper side of the extension pipe.

[0007] As a further description of the above technical solution:

[0008] The support assembly includes a movable ring, a clamping plate fixedly connected to the left side of the movable ring, a fixing frame fixedly connected to the outer wall of the extension tube, a rotating column rotatably connected to the inner wall of the fixing frame, a mounting frame fixedly connected to the outer wall of the rotating column, and a roller rotatably connected to the mounting frame.

[0009] As a further description of the above technical solution:

[0010] The limiting component includes a locking block, the lower side of which is elastically connected to the upper inner wall of the extension tube by a spring.

[0011] As a further description of the above technical solution:

[0012] One end of the spring is fixedly connected to the lower side of the locking block, and the other end of the spring is fixedly connected to the upper inner wall of the extension tube.

[0013] As a further description of the above technical solution:

[0014] The outer right wall of the card block is inclined, and the outer wall of the card block is slidably connected to the upper inner wall of the extension tube. The upper side of the card block is engaged with the inner wall of the moving ring.

[0015] As a further description of the above technical solution:

[0016] One end of the second spring is fixedly connected to the inner front wall of the main tube, and the other end of the second spring is fixedly connected to the rear side of the limiting block.

[0017] As a further description of the above technical solution:

[0018] The front side of the limiting block is arc-shaped, the outer wall of the limiting block is slidably connected to the inner wall of the main pipe, and the front side of the limiting block is engaged with the inner wall of the limiting groove.

[0019] As a further description of the above technical solution:

[0020] The inner wall of the rotating column is provided with mutually perpendicular slots.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by pushing the extension tube to slide along the outer wall of the main tube, the limiting block slides along the arc groove and slide groove of the extension tube under the elastic force of the second spring. When it slides to the appropriate position, the limiting block is locked into the corresponding limiting groove, thus completing the length fixation of the main tube and the extension tube. The length can be changed to meet the cleaning needs of different pipe lengths.

[0023] 2. In this utility model, by providing rollers and rotating columns, the rollers and mounting bracket are rotated to a position perpendicular to the extension tube. The rollers can roll along the inner wall of the heat exchanger pipe, reducing the frictional resistance between the support components and the inner wall of the pipe, facilitating the smooth movement of the extension tube. When not in use, the rollers and mounting bracket can be rotated to a position parallel to the extension tube for storage. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of a cleaning assembly for a heat exchanger proposed in this utility model;

[0025] Figure 2 This is a schematic cross-sectional view of the extension tube of a cleaning assembly for a heat exchanger proposed in this utility model.

[0026] Figure 3 This is a schematic cross-sectional view of the moving ring of a cleaning assembly for a heat exchanger proposed in this utility model.

[0027] Figure 4 This is a schematic diagram of the rotating column of a cleaning assembly for a heat exchanger proposed in this utility model;

[0028] Figure 5 This is a schematic diagram of a limiting block for a cleaning assembly for a heat exchanger proposed in this utility model.

[0029] Legend:

[0030] 1. Main pipe; 2. Extension pipe; 3. Moving ring; 4. Mounting bracket; 5. Roller; 6. Mounting block; 7. Nozzle; 8. Conical head; 9. Limiting groove; 10. Arc groove; 11. Slide groove; 12. Clamping plate; 13. Clamping block; 14. Spring 1; 15. Fixing bracket; 16. Rotating column; 17. Limiting block; 18. Spring 2. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1 , Figure 2 and Figure 5This utility model provides an embodiment of a cleaning assembly for a heat exchanger, including a main pipe 1, which is hollow and designed to accommodate a water pipe. A limiting block 17 is elastically connected to the inner front wall of the main pipe 1 via a spring 2 18. The spring 2 18 provides an elastic driving force to the limiting block 17, allowing it to elastically extend and retract on the inner wall of the main pipe 1. The front side of the limiting block 17 is arc-shaped, which facilitates smooth sliding when it contacts the inner wall of the extension pipe 2, reducing jamming. The outer wall of the limiting block 17 is slidably connected to the inner wall of the main pipe 1. The front side of the 7 is snapped onto the inner wall of the limiting groove 9, and the snapping structure restricts the relative position of the main pipe 1 and the extension pipe 2 to prevent them from accidentally disengaging. One end of the second spring 18 is fixedly connected to the inner wall of the front side of the main pipe 1, and the other end of the second spring 18 is fixedly connected to the rear side of the limiting block 17. The extension pipe 2 is slidably connected to the outer wall of the main pipe 1. The extension pipe 2 can extend and retract along the outer wall of the main pipe 1 to adjust the overall length of the cleaning assembly and adapt to heat exchanger pipes of different depths. An arc-shaped groove 10 is opened on the inner wall of the extension pipe 2. The arc-shaped groove 10 is connected to the sliding groove 11. The arc-shaped groove 10 serves as the limiting block 1. The sliding of 7 provides a guiding path, facilitating the switching of the position of the limiting block 17 as it moves within the extension tube 2. A sliding groove 11 is provided on the inner wall of the extension tube 2, which cooperates with the limiting block 17 to restrict the relative rotation of the main pipe 1 and the extension tube 2, ensuring their axial alignment. A limiting groove 9 is provided on the inner wall of the extension tube 2, which engages with the limiting block 17 to fix the relative position of the main pipe 1 and the extension tube 2, achieving positioning after length adjustment. A mounting block 6 is fixedly connected to the left side of the extension tube 2, supporting the nozzle 7 and the conical head 8. The mounting block 6 is connected to the water pipe. The mounting block 6 is equipped with a water distribution pipe connected to the nozzle 7, which is existing technology. The mounting block 6 is equipped with a nozzle 7, which is used to spray the water transported by the main pipe 1 in the form of high pressure jet, directly acting on the dirt on the inner wall of the heat exchanger to achieve the cleaning function. A conical head 8 is fixedly connected to the left side of the mounting block 6. The conical head 8 adopts a conical structure, which can guide the direction when the cleaning component is inserted into the heat exchanger pipe, and at the same time break up larger impurities in the pipe to avoid blockage. A support component is provided on the outer wall of the extension pipe 2. The support component is used for the movement of the extension pipe 2. A limit component is provided on the upper side of the extension pipe 2.

[0033] Reference Figure 3 and Figure 4The support assembly includes a movable ring 3, which is sleeved on the outer wall of the extension tube 2 and can slide along the axial direction of the extension tube 2. A retaining plate 12 is fixedly connected to the left side of the movable ring 3. The retaining plate 12 cooperates with the retaining groove of the rotating column 16 to restrict the rotation of the rotating column 16 by retaining. A fixing frame 15 is fixedly connected to the outer wall of the extension tube 2. The fixing frame 15 provides a rotation support point for the rotating column 16. The rotating column 16 is rotatably connected to the inner wall of the fixing frame 15. The rotating column 16 can rotate around the fixing frame 15 to adjust the angle of the mounting frame 4 and the roller 5. The inner wall of the rotating column 16 has mutually perpendicular retaining grooves. The mounting frame 4 is fixedly connected to the outer wall of the rotating column 16. The mounting frame 4 is used to install the roller 5 and connect the roller 5 to the rotating column 16 as a whole. The roller 5 is rotatably connected to the mounting frame 4. The roller 5 can roll along the inner wall of the heat exchanger pipe to reduce the frictional resistance between the support assembly and the inner wall of the pipe and facilitate the smooth movement of the extension tube 2.

[0034] Reference Figure 3 The limiting component includes a locking block 13, which is the core component of the limiting component. It restricts the position of the moving ring 3 through locking action. The outer right wall of the locking block 13 is inclined. The outer wall of the locking block 13 is slidably connected to the upper inner wall of the extension tube 2. The upper side of the locking block 13 is locked to the inner wall of the moving ring 3. The locking action restricts the axial movement of the moving ring 3 and fixes the position of the support component. The lower side of the locking block 13 is elastically connected to the upper inner wall of the extension tube 2 through a spring 14. The spring 14 provides an upward elastic force to the locking block 13, ensuring that the locking block 13 is stably locked in the moving ring 3. One end of the spring 14 is fixedly connected to the lower side of the locking block 13, and the other end of the spring 14 is fixedly connected to the upper inner wall of the extension tube 2.

[0035] Working principle: In use, first adjust the relative position of the main pipe 1 and the extension pipe 2 according to the depth of the heat exchanger pipe. During adjustment, push the extension pipe 2 to slide along the outer wall of the main pipe 1. At this time, the limiting block 17 slides along the arc groove 10 and slide groove 11 of the extension pipe 2 under the elastic force of the spring 18. When it slides into place, the limiting block 17 is locked into the corresponding limiting groove 9, thus fixing the length of the main pipe 1 and the extension pipe 2. Move the moving ring 3 to make the locking plate 12 disengage from the locking groove of the rotating column 16. Rotate the rotating column 16 to drive the mounting bracket 4 and roller 5 to rotate to a position perpendicular to the extension pipe 2. Move in the opposite direction. Ring 3 causes the card plate 12 to be locked into the slot of the rotating column 16 and fixed in position. At the same time, the locking block 13 of the limiting component is locked into the inner wall of the moving ring 3 under the elastic force of the spring 14 to prevent the moving ring 3 from shifting. Then, the cleaning component is extended into the heat exchanger pipe. The conical head 8 guides the component to enter smoothly and break up larger impurities. The water pipe in the main pipe 1 delivers water to the nozzle 7 through the water distribution pipe of the mounting block 6. The nozzle 7 sprays water to clean the dirt on the inner wall of the pipe. During the movement, the roller 5 of the supporting component rolls along the inner wall of the pipe to ensure that the extension pipe 2 moves smoothly and achieves efficient cleaning of the heat exchanger pipe.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cleaning assembly for a heat exchanger, comprising a main pipe (1), characterized in that: A limiting block (17) is elastically connected to the inner wall of the front side of the main tube (1) by a spring (18). An extension tube (2) is slidably connected to the outer wall of the main tube (1). An arc groove (10) is opened on the inner wall of the extension tube (2). A sliding groove (11) is opened on the inner wall of the extension tube (2). A limiting groove (9) is opened on the inner wall of the extension tube (2). An installation block (6) is fixedly connected to the left side of the extension tube (2). A nozzle (7) is provided on the installation block (6). A conical head (8) is fixedly connected to the left side of the installation block (6). A support assembly is provided on the outer wall of the extension tube (2). The support assembly is used for the movement of the extension tube (2). A limiting assembly is provided on the upper side of the extension tube (2).

2. The cleaning assembly for a heat exchanger according to claim 1, characterized in that: The support assembly includes a movable ring (3), a card plate (12) is fixedly connected to the left side of the movable ring (3), a fixing frame (15) is fixedly connected to the outer wall of the extension tube (2), a rotating column (16) is rotatably connected to the inner wall of the fixing frame (15), a mounting frame (4) is fixedly connected to the outer wall of the rotating column (16), and a roller (5) is rotatably connected to the mounting frame (4).

3. A cleaning assembly for a heat exchanger according to claim 1, characterized in that: The limiting component includes a locking block (13), the lower side of which is elastically connected to the upper inner wall of the extension tube (2) by a spring (14).

4. A cleaning assembly for a heat exchanger according to claim 3, characterized in that: One end of the spring (14) is fixedly connected to the lower side of the locking block (13), and the other end of the spring (14) is fixedly connected to the upper inner wall of the extension tube (2).

5. A cleaning assembly for a heat exchanger according to claim 3, characterized in that: The outer right side of the card block (13) is inclined, and the outer wall of the card block (13) is slidably connected to the upper inner wall of the extension tube (2). The upper side of the card block (13) is engaged with the inner wall of the moving ring (3).

6. A cleaning assembly for a heat exchanger according to claim 1, characterized in that: One end of the second spring (18) is fixedly connected to the inner wall of the front side of the main tube (1), and the other end of the second spring (18) is fixedly connected to the rear side of the limiting block (17).

7. A cleaning assembly for a heat exchanger according to claim 1, characterized in that: The front side of the limiting block (17) is arc-shaped, the outer wall of the limiting block (17) is slidably connected to the inner wall of the main pipe (1), and the front side of the limiting block (17) is engaged with the inner wall of the limiting groove (9).

8. A cleaning assembly for a heat exchanger according to claim 2, characterized in that: The inner wall of the rotating column (16) is provided with mutually perpendicular slots.

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