Heat exchanger convenient to maintain

Abstract

The utility model discloses a heat exchanger convenient to maintain, which relates to the technical field of heat exchangers and comprises a heat exchanger body, a right side cover, a left side cover, a hot water inlet pipe, a hot water outlet pipe, a cold water inlet pipe, a cold water outlet pipe and a sealing plate. A top plate is fixedly installed at the upper end of each fixing frame, a sliding groove is formed in the upper end of the top plate, the sliding groove communicates with a positioning hole formed in the middle of the upper end of the top plate, and a heat exchange locking and positioning mechanism is arranged in the middle of the upper end of the heat exchanger body. According to the utility model, through the heat exchange locking and positioning mechanism, direct guiding and positioning actions can be carried out when a whole body formed by the fixing frame and the heat exchange tube is inserted into the heat exchanger body, so that the installation efficiency of the heat exchange tube is improved.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger technology, specifically to a heat exchanger that is easy to maintain. Background Technology

[0002] A heat exchanger is a device that transfers part of the heat of a hot fluid to a cold fluid. It is also called a heat exchanger and is widely used in chemical, petroleum, power, food and many other industrial productions. In chemical production, heat exchangers can be used as heaters, coolers, condensers, evaporators and reboilers, etc.

[0003] For example, utility model patent CN222418679U discloses a heat exchanger that is easy to maintain in the field of heat exchanger technology. It includes a shell and an arc-shaped cover. The arc-shaped cover is screwed onto the left and right sides of the shell. A mounting bracket is slidably connected between the front and rear sides of the inner cavity of the shell. Heat exchange tubes are inserted between the left and right side walls of the inner cavity of the mounting bracket, and the heat exchange tubes are evenly distributed. Both ends of the heat exchange tubes pass through the mounting bracket and the arc-shaped cover and extend into the inner cavities of the arc-shaped cover on the left and right sides. An installation chamber is fixedly connected to the upper side of the outer side wall of the shell, and the left and right side walls of the inner cavity of the installation chamber slide between... The heat exchanger, which is easy to maintain and has a reasonable structural design, is connected to a pressure plate. It allows for quick removal of the heat exchange tubes inside the shell for cleaning, facilitating maintenance of the heat exchange tubes. It can also filter impurities in the water entering the heat exchange tubes, reducing the frequency of maintenance. However, there is a problem with inaccurate positioning when the fixing tenon and the positioning holes on the mounting bracket are used for positioning. This results in the need for front-to-back angle adjustment when the mounting bracket and the heat exchange tubes are inserted into the cavity, ultimately reducing the installation efficiency of the heat exchange tubes and further reducing the working efficiency of the heat exchanger. Therefore, we propose a heat exchanger that is easier to maintain. Utility Model Content

[0004] The purpose of this invention is to provide a heat exchanger that is easy to maintain, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat exchanger that is easy to maintain, comprising a heat exchanger body, a right side cover, a left side cover, a hot water inlet pipe, a hot water outlet pipe, a cold water inlet pipe, a cold water outlet pipe, and a sealing plate. A positioning groove is provided on the lower side of the inner end of the heat exchanger body. Multiple sets of evenly distributed heat exchange tubes are arranged inside the heat exchanger body. Fixing frames are fixedly installed on the outer ends of the multiple sets of heat exchange tubes. Each fixing frame has a traveling wheel at its lower end, and the traveling wheel is slidably connected to the positioning groove. A top plate is fixedly installed on the upper end of the fixing frame. A sliding groove is provided on the upper end of the top plate, and the sliding groove communicates with a positioning hole located in the middle of the upper end of the top plate. A heat exchange locking and positioning mechanism is provided in the middle of the upper end of the heat exchanger body. The heat exchange locking and positioning mechanism is used to perform a final positional guidance action on the top plate.

[0006] Preferably, the heat exchange locking and positioning mechanism includes a C-shaped plate, with the heat exchanger body fixedly installed at the lower end of the C-shaped plate. A rotating screw is threaded onto the surface of the C-shaped plate, and a positioning post is fixedly installed at the lower end of the rotating screw. The positioning post is slidably connected to a sliding groove. A rotating handle is fixedly installed at the upper end of the rotating screw, and multiple circumferentially distributed insertion holes are provided at the upper end of the rotating handle. An L-shaped plate is fixedly installed on the front side of the upper end of the C-shaped plate, and a spring is fixedly installed on the rear side of the lower end of the L-shaped plate. An insertion post is fixedly installed at the lower end of the spring, and the outer end of the insertion post is slidably connected to the insertion hole. A guide post is fixedly installed at the upper end of the insertion post, and the outer end of the guide post is slidably connected to the L-shaped plate.

[0007] Preferably, a left cover is bolted to the left end of the heat exchanger body, a sealing plate is provided between the left cover and the heat exchanger body, the left end of the heat exchange tube passes through the sealing plate and is located in the inner cavity of the left cover, a partition plate is provided in the middle of the inner end of the left cover, a hot water inlet pipe is fixedly connected to the upper end of the left cover, and a hot water outlet pipe is fixedly connected to the lower end of the left cover.

[0008] Preferably, a right-side cover is detachably installed on the right end of the heat exchanger body, a cold water inlet pipe is fixedly connected to the left side of the outer end of the heat exchanger body, and a cold water outlet pipe is fixedly connected to the lower right side of the outer end of the heat exchanger body.

[0009] Preferably, two symmetrically arranged hangers are fixedly installed on the upper side of the outer end of the heat exchanger body, and each hanger has a hanging hole on its surface.

[0010] Preferably, two symmetrically arranged support frames are fixedly installed at the lower end of the heat exchanger body.

[0011] Preferably, the guide post penetrates the L-shaped plate, and an operating handle is fixedly installed at the upper end of the guide post.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model can directly guide and position the entire assembly of the fixing frame and heat exchange tube into the heat exchanger body through a heat exchange locking and positioning mechanism, thereby improving the installation efficiency of the heat exchange tube.

[0014] 2. This utility model enables the entire assembly of the fixing frame and heat exchange tubes to move linearly within the heat exchanger body via the heat exchanger body, positioning groove, and wheels. This prevents the need for front-to-back angle adjustments during installation, thus improving the ease of installation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model;

[0017] Figure 3 This utility model Figure 2 Enlarged view of the structure of section A in the middle;

[0018] Figure 4 This utility model Figure 2 Enlarged view of the structure of section B;

[0019] Figure 5 This is a schematic diagram of the heat exchange locking and positioning mechanism of this utility model;

[0020] Figure 6 This utility model Figure 5 Enlarged view of the structure of section C.

[0021] In the diagram: 1. Heat exchanger body; 2. Right side cover; 3. Left side cover; 4. Hot water inlet pipe; 5. Hot water outlet pipe; 6. Cold water inlet pipe; 7. Cold water outlet pipe; 8. Hanger; 9. Heat exchanger locking and positioning mechanism; 91. C-shaped plate; 92. Rotating handle; 93. Insertion hole; 94. Rotating screw; 95. Positioning post; 96. L-shaped plate; 97. Spring; 98. Insertion post; 99. Guide post; 910. Operating handle; 10. Lifting hole; 11. Support frame; 12. Top plate; 13. Slide groove; 14. Positioning hole; 15. Positioning groove; 16. Traveling wheel; 17. Heat exchanger tube; 18. Fixing frame; 19. Sealing plate. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-6This utility model provides a technical solution: a heat exchanger that is easy to maintain, including a heat exchanger body 1, a right side cover 2, a left side cover 3, a hot water inlet pipe 4, a hot water outlet pipe 5, a cold water inlet pipe 6, a cold water outlet pipe 7, and a sealing plate 19. A positioning groove 15 is provided on the lower inner side of the heat exchanger body 1. Multiple sets of evenly distributed heat exchange tubes 17 are arranged inside the heat exchanger body 1. Fixing frames 18 are fixedly installed on the outer ends of the multiple sets of heat exchange tubes 17. Each fixing frame 18 is provided with a traveling wheel 16 at its lower end. The traveling wheel 16 is slidably connected to the positioning groove 15. A top plate 12 is fixedly installed on the upper end of the fixing frame 18. A sliding groove 13 is provided on the upper end of the top plate 12. The sliding groove 13 is connected to a positioning hole 14 opened in the middle of the upper end of the top plate 12. A heat exchange locking positioning mechanism 9 is provided in the middle of the upper end of the heat exchanger body 1. The heat exchange locking positioning mechanism 9 is used to perform the final position positioning and guiding action of the top plate 12.

[0024] In this embodiment, the heat exchange locking and positioning mechanism 9 includes a C-shaped plate 91. The heat exchanger body 1 is fixedly installed at the lower end of the C-shaped plate 91. A rotating screw 94 is threadedly connected to the surface of the C-shaped plate 91. A positioning post 95 is fixedly installed at the lower end of the rotating screw 94. The positioning post 95 is slidably connected to the slide groove 13. A rotating handle 92 is fixedly installed at the upper end of the rotating screw 94. A plurality of circumferentially distributed insertion holes 93 are opened at the upper end of the rotating handle 92. An L-shaped plate 96 is fixedly installed on the front side of the upper end of the C-shaped plate 91. A spring 97 is fixedly installed on the rear side of the lower end of the L-shaped plate 96. An insertion post 98 is fixedly installed at the lower end of the spring 97. The outer end of the insertion post 98 is slidably connected to the insertion hole 93. A guide post 99 is fixedly installed at the upper end of the insertion post 98. The outer end of the guide post 99 is slidably connected to the L-shaped plate 96.

[0025] Specifically, when the heat exchange tube 17 and the fixing frame 18 are inserted into the heat exchanger body 1, since the top plate 12 has a sliding groove 13, the fixing frame 18 moves the top plate 12 during the movement of the fixing frame 18. The positioning post 95 slides in the sliding groove 13. When the positioning post 95 is aligned with the positioning hole 14, the operating handle 910 can be pulled upward. At this time, the operating handle 910 moves the guide post 99 and the insertion post 98 upward. At this time, the insertion post 98 releases the spring 99. 7. Perform the compression action, then rotate the handle 92. The handle 92 drives the screw 94 to rotate, which in turn drives the positioning pin 95 to move downward. When the positioning pin 95 is inserted into the positioning hole 14, stop rotating the handle 92. Next, release the operating handle 910. Due to the elasticity of the spring 97, the spring 97 drives the insertion pin 98 to move downward. The insertion pin 98 drives the guide pin 99 and the operating handle 910 to move downward. The insertion pin 98 is inserted into the insertion hole 93.

[0026] In this embodiment, a left cover 3 is bolted to the left end of the heat exchanger body 1. A sealing plate 19 is provided between the left cover 3 and the heat exchanger body 1. The left end of the heat exchange tube 17 passes through the sealing plate 19 and is located in the inner cavity of the left cover 3. A partition plate is provided in the middle of the inner end of the left cover 3. A hot water inlet pipe 4 is fixedly connected to the upper end of the left cover 3, and a hot water outlet pipe 5 is fixedly connected to the lower end of the left cover 3.

[0027] Specifically, the hot water passage can be completed through the left cover 3, the hot water inlet pipe 4, and the hot water outlet pipe 5.

[0028] In this embodiment, a right side cover 2 is detachably installed on the right end of the heat exchanger body 1, a cold water inlet pipe 6 is fixedly connected to the left side of the outer end of the heat exchanger body 1, and a cold water outlet pipe 7 is fixedly connected to the lower right side of the outer end of the heat exchanger body 1.

[0029] Specifically, the cold water passage can be completed through the cold water inlet pipe 6 and the cold water outlet pipe 7.

[0030] In this embodiment, two symmetrically arranged hangers 8 are fixedly installed on the upper side of the outer end of the heat exchanger body 1, and each hanger 8 has a hanging hole 10 on its surface.

[0031] Specifically, the heat exchanger body 1 can be directly lifted and used for work through the hanger 8 and the lifting hole 10.

[0032] In this embodiment, two symmetrically arranged support frames 11 are fixedly installed at the lower end of the heat exchanger body 1.

[0033] Specifically, the support frame 11 can be used to provide stable support for the heat exchanger body 1.

[0034] In this embodiment, the guide post 99 penetrates the L-shaped plate 96, and an operating handle 910 is fixedly installed on the upper end of the guide post 99.

[0035] Specifically, ensure that the guide post 99 does not interfere with the L-shaped plate 96 during movement.

[0036] Working principle: When removing and cleaning the heat exchange tube 17, the right side cover 2 can be removed from the heat exchanger body 1. Next, the entire assembly of the heat exchange tube 17 and the fixing bracket 18 is pulled out. Then, the outer end of the heat exchange tube 17 can be cleaned. After the heat exchange tube 17 is cleaned, the assembly of the fixing bracket 18 and the heat exchange tube 17 is inserted into the heat exchanger body 1. During this process, the traveling wheels 16 roll within the positioning groove 15 to provide stable support and guidance. As the heat exchange tube 17 and the fixing bracket 18 move, the fixing bracket 18 drives the top plate 12 to move, and the positioning post 95 slides within the sliding groove 13. Once the positioning post 95 is aligned with the positioning hole 14... At this point, the operating handle 910 can be pulled upwards. This causes the guide post 99 and the insertion post 98 to move upwards, compressing the spring 97. Next, the rotating handle 92 is rotated, causing the rotating screw 94 to rotate. The rotating screw 94 then causes the positioning post 95 to move downwards. When the positioning post 95 is inserted into the positioning hole 14, the rotation of the rotating handle 92 can be stopped. Then, the operating handle 910 is released. Due to the elasticity of the spring 97, the spring 97 causes the insertion post 98 to move downwards, which in turn causes the guide post 99 and the operating handle 910 to move downwards. The insertion post 98 is inserted into the insertion hole 93.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A heat exchanger that is easy to maintain, comprising a heat exchanger body (1), a right side cover (2), a left side cover (3), a hot water inlet pipe (4), a hot water outlet pipe (5), a cold water inlet pipe (6), a cold water outlet pipe (7), and a sealing plate (19), characterized in that: The heat exchanger body (1) has a positioning groove (15) on the lower side of its inner end. The heat exchanger body (1) is provided with multiple sets of heat exchange tubes (17) that are evenly distributed. The outer ends of the multiple sets of heat exchange tubes (17) are fixedly installed with a fixing frame (18). Each fixing frame (18) is provided with a traveling wheel (16) at its lower end. The traveling wheel (16) is slidably connected to the positioning groove (15). A top plate (12) is fixedly installed on the upper end of the fixing frame (18). A sliding groove (13) is provided on the upper end of the top plate (12). The sliding groove (13) is connected to a positioning hole (14) opened in the middle of the upper end of the top plate (12). A heat exchange locking positioning mechanism (9) is provided in the middle of the upper end of the heat exchanger body (1). The heat exchange locking positioning mechanism (9) is used to perform the final position positioning and guiding action of the top plate (12).

2. The heat exchanger for easy maintenance according to claim 1, characterized in that: The heat exchange locking and positioning mechanism (9) includes a C-shaped plate (91), the heat exchanger body (1) is fixedly installed at the lower end of the C-shaped plate (91), a rotating screw (94) is threadedly connected to the surface of the C-shaped plate (91), a positioning column (95) is fixedly installed at the lower end of the rotating screw (94), the positioning column (95) is slidably connected to a slide groove (13), and a rotating handle (92) is fixedly installed at the upper end of the rotating screw (94). The upper end of the rotating handle (92) is open. The device has multiple circumferentially distributed insertion holes (93). An L-shaped plate (96) is fixedly installed on the front side of the upper end of the C-shaped plate (91). A spring (97) is fixedly installed on the rear side of the lower end of the L-shaped plate (96). A plug post (98) is fixedly installed on the lower end of the spring (97). The outer end of the plug post (98) is slidably connected to the insertion hole (93). A guide post (99) is fixedly installed on the upper end of the plug post (98). The outer end of the guide post (99) is slidably connected to the L-shaped plate (96).

3. The heat exchanger for easy maintenance according to claim 1, characterized in that: The left end of the heat exchanger body (1) is bolted to a left cover (3). A sealing plate (19) is provided between the left cover (3) and the heat exchanger body (1). The left end of the heat exchange tube (17) passes through the sealing plate (19) and is located in the inner cavity of the left cover (3). A partition plate is provided in the middle of the inner end of the left cover (3). A hot water inlet pipe (4) is fixedly connected to the upper end of the left cover (3). A hot water outlet pipe (5) is fixedly connected to the lower end of the left cover (3).

4. The heat exchanger for easy maintenance according to claim 1, characterized in that: The heat exchanger body (1) has a detachable right side cover (2) installed on the right end. The left side of the outer end of the heat exchanger body (1) is fixedly connected to a cold water inlet pipe (6). The lower right side of the outer end of the heat exchanger body (1) is fixedly connected to a cold water outlet pipe (7).

5. A heat exchanger that is easy to maintain according to claim 1, characterized in that: Two symmetrically arranged hangers (8) are fixedly installed on the upper side of the outer end of the heat exchanger body (1), and each hanger (8) has a hanging hole (10) on its surface.

6. The heat exchanger for easy maintenance according to claim 1, characterized in that: Two symmetrically arranged support frames (11) are fixedly installed at the lower end of the heat exchanger body (1).

7. A heat exchanger that is easy to maintain according to claim 2, characterized in that: The guide post (99) penetrates the L-shaped plate (96), and an operating handle (910) is fixedly installed on the upper end of the guide post (99).

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