Backwashing operation system of heat exchanger

Abstract

The utility model provides a heat exchanger backwashing operation system, which relates to the technical field of chemical engineering and comprises a heat exchanger body, the side surface of the heat exchanger body is in bolted connection with a sealing cover, the surface of the heat exchanger body is fixedly communicated with a circulating water inlet pipe, and the surface of the circulating water inlet pipe is fixedly provided with a circulating water inlet valve. When backwashing is needed, water flow can reversely flow through the heat exchanger by closing the circulating water inlet valve and the circulating water outlet valve and opening the backwashing water inlet valve and the backwashing water outlet valve, dirt in the heat exchanger is effectively washed and discharged, tedious operation of a traditional disassembly cleaning mode is avoided, cleaning of the heat exchanger can be rapidly achieved, and the service life of the heat exchanger is prolonged. A large amount of time and labor cost are saved, the two-way lead screw is in threaded connection with the connecting block, the two-way lead screw can rotate by rotating the adjusting head, and therefore the supporting plate is driven to slide on the mounting plate, the mounting position of the heat exchanger is conveniently adjusted according to actual requirements, and the flexibility of equipment mounting and adjusting is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of chemical technology, and in particular to a heat exchanger backflushing operating system. Background Technology

[0002] The chemical industry is an sector that utilizes chemical reaction principles and engineering technology to transform raw materials into various products. Its production processes involve numerous complex technologies and equipment. Heat exchangers, as an indispensable piece of equipment in chemical production, are widely used in the heating, cooling, and condensation of materials, playing a crucial role in ensuring the efficient and stable operation of chemical production.

[0003] In existing technology, the heat exchanger in the phthalic anhydride unit switching system cools the shell-side heat transfer oil using circulating water in the tube side. After prolonged operation, sludge and fouling accumulate in the circulating water, affecting the cooling temperature of the heat transfer oil. Cleaning the heat exchanger primarily involves manual disassembly and cleaning, requiring the opening of both side covers. This method is labor-intensive and time-consuming, and the disassembly process can easily damage the equipment's seals and connections, increasing maintenance costs. Furthermore, prolonged disassembly and cleaning can lead to equipment downtime, severely impacting the continuity of chemical production, causing production delays and economic losses. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of this invention is to solve the problems of difficult and time-consuming cleaning when inspecting heat exchangers in the prior art, and to propose a heat exchanger backflushing operating system.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a heat exchanger backflushing operating system, comprising a heat exchanger body, a cover bolted to the side of the heat exchanger body, a circulating water inlet pipe fixedly connected to the surface of the heat exchanger body, a circulating water inlet valve fixedly installed on the surface of the circulating water inlet pipe, a circulating water outlet pipe fixedly connected to the side of the cover, a circulating water outlet valve fixedly installed on the surface of the circulating water outlet pipe, a backflushing inlet pipe fixedly connected to the surface of the circulating water inlet pipe, a backflushing inlet valve fixedly installed on the surface of the backflushing inlet pipe, a backflushing outlet pipe fixedly connected to the surface of the heat exchanger body, a backflushing outlet valve fixedly installed on the surface of the backflushing outlet pipe, an mounting plate fixedly installed on the surface of the heat exchanger body, a support plate slidably connected to the surface of the mounting plate, a fixing plate provided on the lower surface of the support plate, a fixing hole opened on the surface of the fixing plate, a connecting block fixedly connected to the surface of the support plate, a bidirectional screw rotatably connected inside the mounting plate, and an adjusting head fixedly installed at one end of the bidirectional screw.

[0006] Preferably, the connecting block and the mounting plate are slidably connected.

[0007] Preferably, the bidirectional lead screw is threadedly connected to the connecting block.

[0008] Preferably, a bearing is fixedly installed inside the mounting plate, and the bidirectional lead screw is slidably connected to the bearing.

[0009] Preferably, a connecting rod is fixedly connected to the surface of the fixing plate, an adjusting screw is threadedly connected to the surface of the support plate, and an adjusting screw hole is provided on the surface of the connecting rod.

[0010] Preferably, the connecting rod is slidably connected to the support plate, and the adjusting screw is threadedly connected to the adjusting screw hole.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. In this utility model, when backwashing is required, by closing the circulating water inlet valve and outlet valve and opening the backwash inlet valve and outlet valve, the water can flow in the opposite direction through the heat exchanger, effectively flushing out the internal dirt. This avoids the cumbersome operation of traditional disassembly and cleaning methods, and can quickly clean the heat exchanger, saving a lot of time and labor costs. Furthermore, the bidirectional screw is threadedly connected to the connecting block, and rotating the adjusting head can rotate the bidirectional screw, thereby driving the support plate to slide on the mounting plate. This makes it convenient to adjust the installation position of the heat exchanger according to actual needs, enhancing the flexibility of equipment installation and adjustment.

[0013] 2. In this utility model, the connecting rod on the fixed plate is connected to the support plate via adjusting screws and adjusting screw holes, allowing for further fine-tuning of the fixed plate's position, making the heat exchanger installation more stable and precise. This flexible installation and adjustment structure is suitable for various installation scenarios, improving the equipment's applicability and versatility. Attached Figure Description

[0014] Figure 1 A three-dimensional structural diagram of a heat exchanger backflushing operating system is provided for this utility model.

[0015] Figure 2 A top view of a heat exchanger backflushing operating system is provided for this utility model;

[0016] Figure 3 This utility model provides a partial structural diagram of the mounting plate of a heat exchanger backflushing operating system.

[0017] Figure 4 This invention provides an exploded view of the connecting rod and fixing plate of a heat exchanger backflushing operating system.

[0018] Legend: 1. Heat exchanger body; 2. Cover; 3. Circulating water inlet pipe; 4. Circulating water inlet valve; 5. Circulating water outlet pipe; 6. Circulating water outlet valve; 7. Backwash inlet pipe; 8. Backwash inlet valve; 9. Backwash outlet pipe; 10. Backwash outlet valve; 11. Mounting plate; 12. Support plate; 13. Fixing plate; 14. Fixing hole; 15. Connecting block; 16. Bearing; 17. Two-way lead screw; 18. Adjusting head; 19. Connecting rod; 20. Adjusting screw; 21. Adjusting screw hole. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0021] Example 1: As Figures 1-4 As shown, this utility model provides a technical solution: a heat exchanger backflushing operating system, including a heat exchanger body 1, a cover 2 bolted to the side of the heat exchanger body 1, a circulating water inlet pipe 3 fixedly connected to the surface of the heat exchanger body 1, a circulating water inlet valve 4 fixedly installed on the surface of the circulating water inlet pipe 3, a circulating water outlet pipe 5 fixedly connected to the side of the cover 2, a circulating water outlet valve 6 fixedly installed on the surface of the circulating water outlet pipe 5, a backflushing inlet pipe 7 fixedly connected to the surface of the circulating water inlet pipe 3, a backflushing inlet valve 8 fixedly installed on the surface of the backflushing inlet pipe 7, and a backflushing outlet pipe 9 fixedly connected to the surface of the heat exchanger body 1. A backwash outlet valve 10 is fixedly installed on the surface of the heat exchanger body 1. An installation plate 11 is fixedly installed on the surface of the installation plate 11. A support plate 12 is slidably connected to the surface of the installation plate 11. A fixing plate 13 is provided on the lower surface of the support plate 12. A fixing hole 14 is opened on the surface of the fixing plate 13. A connecting block 15 is fixedly connected to the surface of the support plate 12. A double-acting screw 17 is rotatably connected inside the installation plate 11. An adjusting head 18 is fixedly installed at one end of the double-acting screw 17. The connecting block 15 is slidably connected to the installation plate 11. The double-acting screw 17 is threadedly connected to the connecting block 15. A bearing 16 is fixedly installed inside the installation plate 11. The double-acting screw 17 is slidably connected to the bearing 16.

[0022] In this embodiment, when backwashing is required, by closing the circulating water inlet valve 4 and the outlet valve, and opening the backwash inlet valve 8 and the outlet valve, the water can flow in the opposite direction through the heat exchanger, effectively flushing out the internal dirt. This avoids the cumbersome operation of traditional disassembly and cleaning methods, and can quickly clean the heat exchanger, saving a lot of time and labor costs. Furthermore, the bidirectional screw 17 is threadedly connected to the connecting block 15, and rotating the adjusting head 18 can rotate the bidirectional screw 17, thereby driving the support plate 12 to slide on the mounting plate 11. This facilitates adjusting the installation position of the heat exchanger according to actual needs, enhancing the flexibility of equipment installation and adjustment.

[0023] Example 2: As Figures 1-4 As shown, a connecting rod 19 is fixedly connected to the surface of the fixed plate 13, and an adjusting screw 20 is threadedly connected to the surface of the support plate 12. An adjusting screw hole 21 is opened on the surface of the connecting rod 19. The connecting rod 19 and the support plate 12 are slidably connected, and the adjusting screw 20 and the adjusting screw hole 21 are threadedly connected.

[0024] In this embodiment, the fixing plate 13 is connected to the support plate 12 via the connecting rod 19 on the fixing plate 13 and the adjusting screw 20 and adjusting screw hole 21, allowing for further fine-tuning of the position of the fixing plate 13, making the heat exchanger installation more stable and precise. This flexible installation and adjustment structure is suitable for various installation scenarios, improving the applicability and versatility of the equipment.

[0025] The working principle of this embodiment is as follows: When in use, the equipment is first installed and adjusted. The heat exchanger body 1 is initially positioned and installed through the fixing holes 14 on the fixing plate 13, and the lower surface of the fixing plate 13 is in contact with the installation foundation. At this point, if the position of the heat exchanger needs to be adjusted, rotate the adjusting head 18 at one end of the bidirectional lead screw 17. Since the bidirectional lead screw 17 is threadedly connected to the connecting block 15, and the connecting block 15 is slidably connected to the mounting plate 11, the rotation of the bidirectional lead screw 17 will cause the connecting block 15 and the support plate 12 to slide on the surface of the mounting plate 11, thereby achieving the initial adjustment of the overall position of the heat exchanger body 1. If further fine-tuning of the position of the fixed plate 13 is required, the adjusting screw 20 on the surface of the support plate 12 can be rotated. The adjusting screw 20 is threadedly connected to the adjusting screw hole 21 on the surface of the connecting rod 19, and the connecting rod 19 is slidably connected to the support plate 12. As the adjusting screw 20 rotates, the connecting rod 19 causes the fixed plate 13 to move within a small range until the heat exchanger is installed securely and in a precise position. After the equipment installation and commissioning are completed, it enters the operation stage. When the heat exchanger is working normally, the circulating water inlet valve 4 and the circulating water outlet valve 6 are in the open state, and the backwash inlet valve 8 and the backwash outlet valve 10 are in the closed state. Circulating water flows into the heat exchanger body 1 from the circulating water inlet pipe 3, and after internal heat exchange, it flows out from the circulating water outlet pipe 5, realizing the normal heat exchange function. When backwashing the heat exchanger is required, first close the circulating water inlet valve 4 and the circulating water outlet valve 6 to cut off the normal circulation path of the circulating water. Then open the backwash inlet valve 8 and the backwash outlet valve 10. At this time, the water flows into the heat exchanger body 1 from the backwash inlet pipe 7 and flows in the reverse direction through the internal channel of the heat exchanger, flushing off the dirt attached to the inner wall of the heat exchanger. The dirt is then discharged from the backwash outlet pipe 9 with the water flow. During the backwashing process, the water quality of the water discharged from the backwash outlet pipe 9 can be observed according to the actual situation. If the water flow is not smooth or the dirt removal effect is not good, the valve opening can be checked appropriately. After the backwashing is completed, close the backwash inlet valve 8 and the backwash outlet valve 10, and reopen the circulating water inlet valve 4 and the circulating water outlet valve 6 to restore the heat exchanger to normal operation and continue the heat exchange work.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A heat exchanger backflushing operating system, comprising a heat exchanger body (1), characterized in that: A cover (2) is bolted to the side of the heat exchanger body (1). A circulating water inlet pipe (3) is fixedly connected to the surface of the heat exchanger body (1). A circulating water inlet valve (4) is fixedly installed on the surface of the circulating water inlet pipe (3). A circulating water outlet pipe (5) is fixedly connected to the side of the cover (2). A circulating water outlet valve (6) is fixedly installed on the surface of the circulating water outlet pipe (5). A backwash inlet pipe (7) is fixedly connected to the surface of the circulating water inlet pipe (3). A backwash inlet valve (8) is fixedly installed on the surface of the backwash inlet pipe (7). A backwash inlet valve (8) is fixedly installed on the surface of the heat exchanger body (1). A backwash outlet pipe (9) is provided with a backwash outlet valve (10) fixedly installed on its surface. An installation plate (11) is fixedly installed on the surface of the heat exchanger body (1). A support plate (12) is slidably connected to the surface of the installation plate (11). A fixing plate (13) is provided on the lower surface of the support plate (12). A fixing hole (14) is opened on the surface of the fixing plate (13). A connecting block (15) is fixedly connected to the surface of the support plate (12). A two-way screw (17) is rotatably connected inside the installation plate (11). An adjusting head (18) is fixedly installed at one end of the two-way screw (17).

2. The heat exchanger backflushing operating system according to claim 1, characterized in that: The connecting block (15) is slidably connected to the mounting plate (11).

3. The heat exchanger backflushing operating system according to claim 1, characterized in that: The bidirectional lead screw (17) is threadedly connected to the connecting block (15).

4. The heat exchanger backflushing operating system according to claim 1, characterized in that: The mounting plate (11) has a bearing (16) fixedly installed inside, and the bidirectional lead screw (17) is slidably connected to the bearing (16).

5. The heat exchanger backflushing operating system according to claim 1, characterized in that: A connecting rod (19) is fixedly connected to the surface of the fixing plate (13), and an adjusting screw (20) is threadedly connected to the surface of the support plate (12). An adjusting screw hole (21) is opened on the surface of the connecting rod (19).

6. The heat exchanger backflushing operating system according to claim 5, characterized in that: The connecting rod (19) is slidably connected to the support plate (12), and the adjusting screw (20) is threadedly connected to the adjusting screw hole (21).

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