Modular plate heat exchanger with easy cleaning maintenance

Abstract

This utility model discloses a modular plate heat exchanger that facilitates cleaning and maintenance, belonging to the field of plate heat exchangers. The plate heat exchanger body has modular mounting brackets on both sides. Support frames are installed on the modular mounting brackets and the plate heat exchanger body. The modular mounting brackets allow for the disassembly of the plate heat exchanger body and interfaces for cleaning and maintenance. The modular mounting brackets include multiple mounting plates, assembly reinforcement strips, and fastening mechanisms. The modular mounting brackets simplify the disassembly, cleaning, and maintenance of the plate heat exchanger, reducing maintenance difficulty and time costs. The synergistic effect of the components enhances structural stability, improves pressure and impact resistance, and extends equipment life. The interlocking blocks connecting the interfaces to the mounting plates ensure precise and reliable connections, preventing leakage. The modular design improves installation efficiency, allowing for adjustment of position and angle according to needs, enhancing installation adaptability and flexibility.

Description

Technical Field

[0001] This utility model relates to the field of plate heat exchangers, and in particular to a modular plate heat exchanger that is easy to clean and maintain. Background Technology

[0002] Plate heat exchangers are a new type of high-efficiency heat exchange equipment, consisting of a series of metal plates with specific corrugated shapes stacked together. This equipment exchanges heat through the metal plates, making it an ideal choice for liquid-liquid and liquid-vapor heat exchange. Its working principle is as follows: Sealing gaskets between the plates facilitate fluid flow, thus separating two independent fluid channels: one for cold fluid and one for hot fluid. The cold and hot heat exchange media flow in their respective channels, exchanging heat with adjacent plates to achieve the desired temperature regulation. Each plate has openings at its four corners, which, when assembled into a plate bundle, form the fluid distribution and collection pipes. After heat exchange, the cold and hot media return through their respective collection pipes, achieving recycling.

[0003] In actual maintenance, when a certain interface is damaged or a part needs cleaning, due to the tight arrangement of the plates and the overall sealing requirements, it is usually necessary to remove a number of adjacent structures and components. This includes loosening the clamping bolts, disassembling the clamping frame, separating the plates, and removing the damaged or cleaning plates and gaskets. This series of operations is not only time-consuming, but also requires operators to have a high degree of precision and professional skills to ensure that the original sealing and heat exchange efficiency can be restored after reassembly.

[0004] The narrow channels between the plates and the complex internal structure of plate heat exchangers make cleaning particularly difficult. This is especially true when dealing with heat exchange media containing particulate or fibrous materials, which can easily deposit between the plates, causing blockages. Blockages not only reduce heat exchange efficiency but can also accelerate equipment wear and aging. Furthermore, to avoid damaging the plates and gaskets during cleaning, meticulous mechanical cleaning methods must be employed, further increasing the difficulty and time cost of maintenance. Summary of the Invention

[0005] The main objective of this invention is to provide a modular plate heat exchanger that is easy to clean and maintain, which can effectively solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A modular plate heat exchanger that is easy to clean and maintain includes a support frame, an interface, and a plate heat exchanger body, wherein the interface is located on the upper and lower parts of the end face of the plate heat exchanger body.

[0008] The plate heat exchanger body is provided with modular mounting brackets on both sides. Support frames are installed on the modular mounting brackets and the plate heat exchanger body. The plate heat exchanger body and interfaces can be disassembled for cleaning and maintenance through the modular mounting brackets.

[0009] The modular mounting bracket includes a first mounting plate, a second mounting plate, a third mounting plate, and a fourth mounting plate, as well as assembly reinforcement strips and a fastening mechanism. The first mounting plate, the second mounting plate, the third mounting plate, and the fourth mounting plate are arranged sequentially from top to bottom. Assembly reinforcement strips are connected to the notches on both sides of the first mounting plate, the second mounting plate, the third mounting plate, and the fourth mounting plate. The side wall of the assembly reinforcement strip has a second side opening, and the side wall of each mounting plate has a first side opening that matches the second side opening. The first side opening and the second side opening are fixed by fastening rods and fasteners, thereby achieving a stable connection between the plate heat exchanger body and the interface.

[0010] In an optional embodiment of this utility model, the different interfaces are respectively installed on the first mounting plate and the fourth mounting plate, and a sealing ring is provided at the connection between the interface and the first mounting plate and the fourth mounting plate. The interface is provided with a recess, and the first mounting plate and the fourth mounting plate are provided with a plug that matches the recess.

[0011] In an optional embodiment of this utility model, the first mounting plate and the fourth mounting plate are symmetrically designed, the first side opening is symmetrically arranged on the side walls of the first mounting plate and the fourth mounting plate, and the first side opening is gourd-shaped, with the corner of the first side opening being arc-shaped.

[0012] In an optional embodiment of this utility model, multiple second side openings are equidistantly distributed on the assembly reinforcement strip. The second side openings are designed in a trumpet shape, and the corners of the second side openings are designed in an arc shape. Anti-slip rubber strips are connected to the joints of multiple mounting plates and the assembly reinforcement strips by adhesive.

[0013] In an optional embodiment of this utility model, multiple mounting plates are connected by inserts and holes, the corners of the inserts are arc-shaped, and anti-slip rubber strips are provided between two adjacent mounting plates.

[0014] In an optional embodiment of this utility model, the fastening rod is a fastening screw, and the fastener includes a nut and an anti-slip washer. The nut and anti-slip washer are sleeved on the fastening rod. Rotating the fastener fixes the modular mounting bracket. The fasteners at the first mounting plate and the fourth mounting plate can be quickly removed from the interface for easy cleaning and maintenance.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The modular mounting bracket design makes disassembly and assembly of the plate heat exchanger body and interfaces easy and convenient, simplifying cleaning and maintenance, effectively reducing maintenance difficulty and time costs. Through the synergistic effect of components such as mounting plates, assembly reinforcement strips, fastening rods, and fasteners, the entire heat exchanger structure is stabilized and enhanced, enabling it to withstand greater fluid pressure and impact forces, while effectively extending the service life of the equipment.

[0017] The connection between the interface and the mounting plate uses a combination of slots and inserts, ensuring the accuracy and reliability of the connection and effectively preventing leakage problems caused by poor connections. The modular mounting bracket design not only simplifies the installation process and improves efficiency, but also allows for flexible adjustment of the installation position and angle according to actual needs, thereby enhancing the adaptability and flexibility of the installation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a diagram showing the overall structure of the present invention;

[0020] Figure 3 This is a diagram illustrating the modular mounting bracket and support frame of this utility model;

[0021] Figure 4 This is a schematic diagram of a partially modular mounting bracket of this utility model;

[0022] Figure 5 for Figure 4 Enlarged diagram of point A in the middle.

[0023] In the diagram: 1. Support frame; 2. Modular mounting bracket; 21. First mounting plate; 22. Second mounting plate; 23. Third mounting plate; 24. Fourth mounting plate; 25. First side opening; 26. Assembly reinforcement strip; 27. Second side opening; 28. Fastening rod; 29. ​​Fastener; 3. Interface; 4. Plate heat exchanger body. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] like Figure 1 - Figure 5 As shown, a modular plate heat exchanger that is easy to clean and maintain includes a support frame 1, an interface 3, and a plate heat exchanger body 4. The interface 3 is designed to be installed on the upper and lower parts of the end face of the plate heat exchanger body 4 for easy connection and disconnection.

[0026] To further improve the ease of maintenance of the heat exchanger, modular mounting brackets 2 are specially designed on both sides of the plate heat exchanger body 4. These modular mounting brackets 2 are combined with the support frame 1 installed on the plate heat exchanger body 4. Through the structure of the modular mounting brackets 2, the plate heat exchanger body 4 and the interface 3 can be easily disassembled, thereby facilitating cleaning and maintenance.

[0027] The modular mounting bracket 2 is designed with multiple mounting plates, including a first mounting plate 21, a second mounting plate 22, a third mounting plate 23, and a fourth mounting plate 24, arranged sequentially from top to bottom. Reinforcing strips 26 are connected to the notches on both sides of these mounting plates to enhance structural stability. The reinforcing strips 26 have second side openings 27 on their side walls, while each mounting plate has a first side opening 25 that mates with the second side opening 27. Fastening rods 28 and fasteners 29 are used to secure the plate heat exchanger body 4 and the interface 3 via the first side opening 25 and the second side opening 27, thereby ensuring a stable connection.

[0028] To accommodate different types of fluid connections, different interfaces 3 are respectively mounted on the first mounting plate 21 and the fourth mounting plate 24. To ensure the sealing of the connection, sealing rings are provided at the connection points between the interface 3 and the first mounting plate 21 and the fourth mounting plate 24. In addition, the interface 3 has a recess, and the first mounting plate 21 and the fourth mounting plate 24 are provided with inserts that fit the recess to ensure the accuracy and reliability of the connection.

[0029] In terms of design, the first mounting plate 21 and the fourth mounting plate 24 are symmetrically designed, and the first side openings 25 are symmetrically arranged on their side walls. To further improve the ease of installation, the first side openings 25 are gourd-shaped with arc-shaped corners to reduce stress concentration and improve the durability of the structure.

[0030] To ensure the strength and stability of the assembly reinforcement strip 26, multiple second side openings 27 are equidistantly distributed on the assembly reinforcement strip 26. These second side openings 27 are flared in shape, and their corners are also curved. To further enhance the stability and durability of the structure, anti-slip rubber strips are attached to the joints between multiple mounting plates and the assembly reinforcement strip 26 using adhesive.

[0031] In the design of the modular mounting bracket 2, multiple mounting plates are connected via inserts and sockets. To improve the flexibility and safety of the connection, the corners of the inserts are also rounded. To prevent relative sliding between mounting plates, anti-slip rubber strips are provided between adjacent mounting plates to ensure the stability and safety of the heat exchanger during operation.

[0032] The fastening rod 28 adopts a fastening screw design, and the fastener 29 includes a nut and an anti-slip washer. The nut and anti-slip washer are fitted onto the fastening rod 28, and the modular mounting bracket 2 can be fixed by rotating the fastener 29. When cleaning and maintenance are required, removing the fasteners 29 at the first mounting plate 21 and the fourth mounting plate 24 allows for quick removal of the interface 3, thereby greatly improving the maintenance efficiency and convenience of the heat exchanger.

[0033] Ensure the heat exchanger system is shut down and stopped. Ensure the system pressure has been released and there is no residual fluid. Loosen and remove the fasteners 29 (nuts and anti-slip washers) at the first mounting plate 21 and the fourth mounting plate 24. Remove the fastening rod 28 to loosen the modular mounting bracket 2. Remove the fastening rod 28 and fasteners 29 on the assembly reinforcement strip 26. Remove the assembly reinforcement strip 26 to loosen the mounting plate. Disassemble the mounting plates one by one (first mounting plate 21, second mounting plate 22, third mounting plate 23, and fourth mounting plate 24). Clean the plate heat exchanger body 4 using appropriate cleaning agents and tools (such as high-pressure water guns, brushes, etc.). Remove scale, dirt, and deposits. Check that the sealing rings at the connection between the interface 3 and the first mounting plate 21 and the fourth mounting plate 24 are intact. Check that the inserts and blocks match to ensure the accuracy and reliability of the connection.

[0034] Reassemble the modular mounting bracket 2 in the reverse order of disassembly. Ensure that the anti-slip rubber strips at all joints of the mounting plates and assembly reinforcement strips 26 are intact. Ensure that the inserts and sockets are tightly connected without relative slippage. Secure the modular mounting bracket 2 using the fastening rods 28 and fasteners 29 (nuts and anti-slip washers). Ensure that the fasteners 29 are tightened and the modular mounting bracket 2 is stable. Reinstall the interface 3 onto the first mounting plate 21 and the fourth mounting plate 24. Ensure that the sealing rings at the joints of the interface 3 and the mounting plates are intact and that the inserts and sockets are properly fitted. Check that all connections are secure and reliable. Start the heat exchanger system and test it to ensure there are no leaks and that it is operating normally. After confirming that the heat exchanger is operating normally, complete the maintenance work.

[0035] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0036] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A modular plate heat exchanger that is easy to clean and maintain, comprising a support frame (1), an interface (3), and a plate heat exchanger body (4), wherein the interface (3) is located above and below the end face of the plate heat exchanger body (4), characterized in that: The plate heat exchanger body (4) is provided with modular mounting brackets (2) on both sides. Support frames (1) are installed on the modular mounting brackets (2) and the plate heat exchanger body (4). The plate heat exchanger body (4) and the interface (3) can be disassembled for cleaning and maintenance through the modular mounting brackets (2). The modular mounting bracket (2) includes a first mounting plate (21), a second mounting plate (22), a third mounting plate (23), and a fourth mounting plate (24), an assembly reinforcement strip (26), and a fastening mechanism. The first mounting plate (21), the second mounting plate (22), the third mounting plate (23), and the fourth mounting plate (24) are arranged sequentially from top to bottom. The assembly reinforcement strip (26) is connected to the notches on both sides of the first mounting plate (21), the second mounting plate (22), the third mounting plate (23), and the fourth mounting plate (24). The side wall of the assembly reinforcement strip (26) is provided with a second side opening (27). The side wall of each mounting plate is provided with a first side opening (25) that matches the second side opening (27). The first side opening (25) and the second side opening (27) are fixed by fastening rods (28) and fasteners (29), thereby achieving a stable connection between the plate heat exchanger body (4) and the interface (3).

2. A modular plate heat exchanger according to claim 1, c h a r a c t e r i s e d in that: The different interfaces (3) are respectively installed on the first mounting plate (21) and the fourth mounting plate (24). A sealing ring is provided at the connection between the interface (3) and the first mounting plate (21) and the fourth mounting plate (24). The interface (3) is provided with a slot, and the first mounting plate (21) and the fourth mounting plate (24) are provided with a block that matches the slot.

3. A modular plate heat exchanger according to claim 2, c h a r a c t e r i s e d in that: The first mounting plate (21) and the fourth mounting plate (24) are symmetrically designed. The first side opening (25) is symmetrically arranged on the side walls of the first mounting plate (21) and the fourth mounting plate (24). The first side opening (25) is gourd-shaped and the corner of the first side opening (25) is arc-shaped.

4. A modular plate heat exchanger according to claim 3, characterized in that: Multiple second side openings (27) are equidistantly distributed on the assembly reinforcement strip (26). The second side opening (27) is designed in a trumpet shape, and the corner of the second side opening (27) is designed in an arc shape. The joints of multiple mounting plates and the assembly reinforcement strip (26) are connected with anti-slip rubber strips by adhesive.

5. A modular plate heat exchanger according to claim 4, characterized in that: Multiple mounting plates are connected by inserts and holes. The corners of the inserts are arc-shaped, and anti-slip rubber strips are provided between adjacent mounting plates.

6. A modular plate heat exchanger according to claim 5, c h a r a c t e r i s e d in that: The fastening rod (28) is a fastening screw, and the fastener (29) includes a nut and an anti-slip washer. The nut and anti-slip washer are sleeved on the fastening rod (28). Rotating the fastener (29) can fix the modular mounting bracket (2). The fastener (29) at the first mounting plate (21) and the fourth mounting plate (24) can be removed to quickly remove the interface (3) for easy cleaning and maintenance.

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