A detachable all-welded plate heat exchanger

Abstract

The utility model discloses a detachable all-welded plate heat exchanger, including frame structure and heat exchange module, be equipped with support frame on frame structure, and the both sides of frame structure are equipped with first side cover and second side cover, and the upper and lower end surfaces are equipped with upper cover and lower cover, first side cover, second side cover, upper cover and lower cover all are installed on frame structure through bolt, and all are equipped with heat exchange mouth on it, heat exchange module is welded by a plurality of heat exchange sheet, and heat exchange sheet is welded by two sheets, and the heat exchange channel is formed between two heat exchange sheets and two sheets, the two sheets of heat exchange sheet are central symmetry, and the sheet is rectangle, and the main heat exchange area of this sheet adopts single chevron corrugated structure, and the corrugated groove depth of single chevron corrugated structure is 4~6mm. The utility model not only solves the problem of heat exchanger internal cleaning difficulty, reaches the effect of turbulent flow under the condition of low reynolds number, and guarantees the heat exchange effect and the purity of material.

Description

Technical Field

[0001] This utility model relates to the field of heat exchangers, and more specifically, to a detachable, fully welded plate heat exchanger. Background Technology

[0002] All-welded plate heat exchangers are a new type of high-efficiency heat exchanger assembled from bundles of metal plates with a specific corrugated shape. Through a full welding process, the edges and flow channels of adjacent heat exchange plates are completely welded shut, forming a closed flow channel structure. Heat exchange is achieved using the thermal conductivity of the corrugated metal plates. All-welded plate heat exchangers have a high heat transfer coefficient, a compact structure, and a small footprint. They are increasingly used in industries such as metallurgy, petroleum, chemical, food, pharmaceutical, shipbuilding, textile, and papermaking, and are excellent equipment for heating, cooling, heat recovery, and rapid sterilization.

[0003] In fields such as medicine and biology, the cleanliness requirements for the interior of heat exchangers are extremely high, and materials are frequently changed. Currently used fully welded plate heat exchangers, with their integral welded design, make it difficult to thoroughly clean the interior because the plates and frame are welded together. Residual media can ultimately affect heat exchange efficiency and the composition of the materials. Furthermore, conventional fully welded plate heat exchangers are mainly assembled from identical corrugated plates welded together using argon arc welding, forming numerous flow channels within the heat exchanger. However, traditional heat exchange plates often fail to achieve sufficient heat exchange. Increasing the heat exchange area to achieve a certain amount of heat exchange results in excessively low flow velocities between the plates, leading to some plates not receiving adequate heat exchange.

[0004] In view of the above, it is necessary to design a new plate heat exchanger that is not only easy to clean and maintain, but also improves heat exchange efficiency, thereby ensuring heat exchange effect and material purity. Utility Model Content

[0005] In view of the above-mentioned defects in the existing technology, the purpose of this utility model is to provide a detachable fully welded plate heat exchanger, which adopts a four-sided detachable frame structure and designs heat exchange plates with a single herringbone corrugated structure, thus solving the problem of difficult internal cleaning of the heat exchanger and achieving turbulent flow at low Reynolds numbers, ensuring heat exchange effect and material purity.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] This utility model provides a detachable fully welded plate heat exchanger, including a frame structure and a heat exchange module disposed within the frame structure.

[0008] The frame structure is provided with a support frame, and the frame structure has a first side cover plate and a second side cover plate on opposite sides. The upper and lower end faces of the frame structure are respectively provided with an upper cover plate and a lower cover plate. The first side cover plate, the second side cover plate, the upper cover plate and the lower cover plate are all installed on the frame structure by bolts. The first side cover plate, the second side cover plate, the upper cover plate and the lower cover plate are all provided with heat exchange ports.

[0009] The heat exchange module is welded together from multiple heat exchange plates. Each heat exchange plate is welded together from two plates, and heat exchange channels are formed between adjacent heat exchange plates and between the two plates. The two heat exchange plates are centrally symmetrical and are rectangular. The main heat exchange area of ​​the plate adopts a single herringbone corrugated structure, and the depth of the corrugated grooves in the single herringbone corrugated structure is 4-6 mm.

[0010] Preferably, sealing gaskets are provided between the first side cover plate, the second side cover plate, the upper cover plate, and the lower cover plate and the frame structure.

[0011] Preferably, the plate is made of stainless steel or titanium and has a thickness of 1 to 1.2 mm.

[0012] Preferably, the plate adopts a perimeter flange design.

[0013] The beneficial effects of this utility model are:

[0014] 1. Compared with traditional all-welded heat exchangers, this utility model adopts a four-sided detachable frame structure, which is easier to clean and maintain, greatly reducing the difficulty of cleaning traditional all-welded plate heat exchangers, and also facilitating the maintenance of the equipment in the later stage.

[0015] 2. The heat exchange plates of this utility model adopt a single herringbone corrugated structure design, which can achieve turbulence at low Reynolds numbers and make the fluid experience less resistance in the channel, thereby reducing energy consumption.

[0016] 3. The flanged structure of the plate in this utility model facilitates welding, improves welding stability, and thus enables it to withstand high pressure. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of the detachable fully welded plate heat exchanger of this utility model;

[0018] Figure 2 This is a schematic diagram of the heat exchange plate structure of this utility model;

[0019] Figure 3 In the diagram, (a) is a partial schematic diagram of the heat exchange plate, (b) is a partial schematic diagram of the heat exchange plate, and (c) is a partial schematic diagram of the heat exchange module.

[0020] Figure 4 A schematic diagram of a single herringbone corrugated structure for a heat exchange plate;

[0021] Figure 5 This is a schematic diagram of the perimeter flange of the sheet metal.

[0022] In the figure, 10 is the frame structure; 11 is the support frame; 12 is the first side cover plate; 13 is the second side cover plate; 14 is the upper cover plate; 15 is the lower cover plate; 16 is the sealing gasket; 17 is the heat exchange port; 20 is the heat exchange module; 21 is the heat exchange plate; and 211 is the plate. Detailed Implementation

[0023] To better understand the above-mentioned technical solution of this utility model, the technical solution of this utility model will be further described below in conjunction with the embodiments.

[0024] This utility model discloses a detachable fully welded plate heat exchanger, which adopts a four-sided detachable frame structure. It contains a heat exchange module composed of a series of rectangular heat exchange plates stacked together. Compared with traditional fully welded heat exchangers, it is easier to clean and maintain. In addition, the heat exchange plates use a single herringbone corrugated structure design, which can achieve turbulence at low Reynolds numbers, making the plates more stable at high flow rates and improving pressure resistance.

[0025] Combination Figure 1 As shown, this utility model discloses a detachable, fully welded plate heat exchanger, comprising a frame structure 10 and a heat exchange module 20 disposed within the frame structure 10. The frame structure 10 is provided with a support frame 11. A first side cover plate 12 and a second side cover plate 13 are provided on opposite sides of the frame structure 10. An upper cover plate 14 and a lower cover plate 15 are respectively provided on the upper and lower end faces of the frame structure 10. The first side cover plate 12, the second side cover plate 13, the upper cover plate 14, and the lower cover plate 15 are all bolted to the frame structure 10. Each of the first side cover plate 12, the second side cover plate 13, the upper cover plate 14, and the lower cover plate 15 has a heat exchange port 17. The heat exchange module 20 is welded from multiple heat exchange plates 21. Each heat exchange plate 21 is welded from two plates 211. A heat exchange channel is formed between adjacent heat exchange plates 21 and between two plates 211 (see [reference]). Figure 2(As shown); the two plates 211 of the heat exchange plate 21 are centrally symmetrical and rectangular. The main heat exchange zone of the plate 211 adopts a single-herringbone corrugated structure, and the depth of the corrugated grooves in the single-herringbone corrugated structure is 4-6mm. In addition to the advantages of ordinary welded heat exchangers, this utility model can also make it easier to clean the dirt and residue inside the heat exchanger by disassembling the four-sided cover, preventing the heat exchange effect from being reduced due to blockage inside the heat exchanger. In addition, the single-herringbone corrugated structure of the plate 211 used in the heat exchange module 20 provides good heat exchange effect, high pressure resistance, and more uniform flow field distribution, making it suitable for fields such as medicine and biology.

[0026] Combination Figure 1 As shown, sealing gaskets 16 are provided between the first side cover plate 12, the second side cover plate 13, the upper cover plate 14 and the lower cover plate 15 and the frame structure 10.

[0027] Combination Figure 2 , Figure 3 As shown, the heat exchange plate 21 consists of two plates welded together to form a channel. Multiple pairs of heat exchange plates 21 are welded together to form a heat exchange module 20. Argon arc welding can be used for welding. The plates are made of stainless steel or titanium with a thickness of 1-1.2 mm. The single-herringbone corrugated structure of the main heat exchange zone of the plate allows the plates to form a grid-like multi-contact channel, making the plate more stable under high flow velocity conditions. This ensures that the medium can form a turbulent effect at low Reynolds numbers and can withstand high pressure, improving the pressure resistance of the plate.

[0028] Combination Figure 4 As shown, the herringbone corrugated structure design of the heat exchange plate 21 can reduce the resistance of the fluid in the channel, thereby reducing energy consumption.

[0029] Combination Figure 5 As shown, plate 211 adopts a perimeter flange design, which facilitates welding, improves welding stability, and thus enables it to withstand high pressure.

[0030] In summary, this utility model's detachable fully welded plate heat exchanger adopts a four-sided detachable frame structure, facilitating cleaning and maintenance. This significantly reduces the difficulty of cleaning traditional fully welded plate heat exchangers, which are often difficult to clean thoroughly, and also facilitates subsequent equipment maintenance. Furthermore, the main heat exchange zone of the heat exchange plates features a single-herringbone corrugated structure design, resulting in excellent heat exchange performance and high pressure resistance.

[0031] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Any changes or modifications to the above embodiments within the scope of the essential spirit of the present utility model will fall within the scope of the claims of the present utility model.

Claims

1. A detachable, fully welded plate heat exchanger, characterized in that: It includes a frame structure and a heat exchange module disposed within the frame structure; The frame structure is provided with a support frame, and the frame structure has a first side cover plate and a second side cover plate on opposite sides. The upper and lower end faces of the frame structure are respectively provided with an upper cover plate and a lower cover plate. The first side cover plate, the second side cover plate, the upper cover plate and the lower cover plate are all installed on the frame structure by bolts. The first side cover plate, the second side cover plate, the upper cover plate and the lower cover plate are all provided with heat exchange ports. The heat exchange module is welded together from multiple heat exchange plates. Each heat exchange plate is welded together from two plates, and heat exchange channels are formed between adjacent heat exchange plates and between the two plates. The two heat exchange plates are centrally symmetrical and are rectangular. The main heat exchange area of ​​the plate adopts a single herringbone corrugated structure, and the depth of the corrugated grooves in the single herringbone corrugated structure is 4-6 mm.

2. The detachable fully welded plate heat exchanger according to claim 1, characterized in that, Sealing gaskets are provided between the first side cover plate, the second side cover plate, the upper cover plate, and the lower cover plate and the frame structure.

3. The detachable fully welded plate heat exchanger according to claim 1, characterized in that, The plates are made of stainless steel or titanium and have a thickness of 1 to 1.2 mm.

4. The detachable fully welded plate heat exchanger according to claim 1, characterized in that, The plate adopts a perimeter flange design.

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