Heat exchanger with novel barrel structure

Abstract

The utility model discloses a heat exchanger with a novel barrel structure and belongs to the technical field of heat exchange equipment. Comprising a regenerator cylinder body, a condenser cylinder body, an upper cylinder cover, a pipe support plate, a protective plate and a pipe plate, the regenerator barrel is of a U-shaped bent structure, the number of the condenser barrels is two, the bottoms of the L-shaped bent structures are located at the same horizontal height and both higher than the bottom of the regenerator barrel, the regenerator barrel and the tube plate form a regenerator liquid storage part, and the condenser barrels, the regenerator barrel and the tube plate form condenser liquid storage parts on the two sides. The condenser liquid storage part is higher than the regenerator liquid storage part, a through opening is formed in the position, corresponding to the pipe supporting plate, of the upper cylinder cover, and the pipe supporting plate penetrates through the upper portion of the upper cylinder cover. A vacuum heat insulation layer is omitted, the liquid storage portions of the regenerator and the condenser have height difference, heat transfer is reduced, and the plate width of the straight section of the barrel is reduced. The pipe supporting plate penetrates through the outer portion of the upper cylinder cover to reinforce the upper cylinder cover, and cost reduction and efficiency improvement are achieved by optimizing the cylinder body, reducing the using amount of steel plates and reducing the machining time.

Description

Technical Field

[0001] This utility model belongs to the technical field of heat exchange equipment, and specifically relates to a heat exchanger with a novel cylindrical structure. Background Technology

[0002] Lithium bromide absorption heat exchangers are increasingly widely used in air conditioning, process refrigeration, and other fields due to their advantages such as low power consumption, non-toxicity, no pollution, no explosion hazard, safety, reliability, and convenient unit maintenance and management. However, with the increasingly severe market situation, improving the overall competitiveness of products has become a challenge for absorption heat exchanger manufacturers.

[0003] like Figure 1 As shown, the existing heat exchanger shell has the following problems:

[0004] 1. In the upper cylinder of the lithium bromide absorption chiller, the regenerator liquid storage section and the condenser liquid storage section are horizontally level and separated by a vacuum insulation layer. In order to reduce heat transfer and prevent refrigerant contamination, the welding of the insulation layer is subject to strict requirements. This process takes too much time, and as the service life of the unit increases, the weld may crack, resulting in refrigerant contamination.

[0005] 2. Furthermore, the insulation layer is located in the vacuum area of ​​the cylinder, making maintenance procedures cumbersome and requiring the vacuum to be broken, which may affect the unit's performance.

[0006] 3. In addition, the straight section of the cylinder has a large plate width. In order to avoid excessive deformation of the cylinder and the upper cylinder cover, it is necessary to thicken the plate and weld multiple reinforcing ribs, which not only affects the appearance but also wastes material and financial resources.

[0007] Therefore, without affecting the unit's capacity, simplifying the manufacturing process and saving production resources has become an unsolved problem in enhancing product competitiveness. Utility Model Content

[0008] To solve the above problems, this utility model provides a heat exchanger with a novel cylindrical structure. The lower cylinder is changed from a single bent plate to three plates. The regenerator cylinder is U-shaped, and the condenser cylinders on both sides are L-shaped. The regenerator cylinder is welded to the condenser cylinders on both sides at the original vacuum insulation layer height. Since there is a height difference between the liquid storage section of the regenerator and the liquid storage section of the condenser in this utility model structure, the original vacuum insulation layer can be eliminated. In addition, the upper cylinder cover has an opening, allowing the upper part of the tube support plate to extend to the outside of the upper cylinder cover, and then fully welded to the protective plate with the through hole to reinforce the upper cylinder cover.

[0009] The technical solution adopted by this utility model to achieve the above-mentioned objective is as follows: a heat exchanger with a novel cylindrical structure, characterized in that it includes a regenerator cylinder, a condenser cylinder, an upper cylinder cover, a tube support plate, a protective plate, and a tube sheet; the regenerator cylinder has a U-shaped bending structure, and the condenser cylinder consists of two L-shaped bending structures, respectively arranged on the left and right sides of the regenerator cylinder, with their bottoms at the same horizontal height and both higher than the bottom of the regenerator cylinder; the upper cylinder cover is connected to the top of the two condenser cylinders, and the two sides are aligned with the condenser cylinders; the regenerator cylinder, the condenser cylinder, and the upper cylinder cover are all connected to the tube sheet; the regenerator cylinder and the tube sheet constitute the liquid storage part of the regenerator; the condenser cylinder, the regenerator cylinder, and the tube sheet constitute the liquid storage parts of the condenser on both sides; the liquid storage part of the condenser is higher than the liquid storage part of the regenerator; the upper cylinder cover has a through-hole at the position corresponding to the tube support plate, and the tube support plate extends to the top of the upper cylinder cover; the protective plate has a central hole and is fitted onto the part of the tube support plate that extends out of the upper cylinder cover.

[0010] The regenerator cylinder and the condenser cylinder are fully welded at the joint, and the regenerator cylinder, the condenser cylinder, and the upper cylinder cover are all fully welded to the tube sheet; tube support plates are placed at appropriate intervals along the length of the cylinder, and the two sides of the tube support plates are respectively connected to the condenser cylinder.

[0011] The vertical sections of the two condenser cylinders are at the same height and are fully welded to the lower end of the upper cylinder cover.

[0012] The protective plate is fully welded to the upper cylinder cover, and the protective plate is fully welded to the pipe support plate.

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

[0014] 1. The liquid storage section of the regenerator and the liquid storage section of the condenser have a height difference, which reduces the heat transfer between the two, thus eliminating the need for a vacuum insulation layer;

[0015] 2. The reduction of the straight sections in the lower part of the regenerator cylinder, the lower part of the condenser cylinder, and the sides can reduce the consumption of cylinder and reinforcing rib materials;

[0016] 3. Welding the pipe support plate, protective plate and upper cylinder cover can stabilize the pipe support plate and reinforce the upper cylinder cover, effectively reducing the consumption of materials for the upper cylinder cover and reinforcing ribs. Attached Figure Description

[0017] Figure 1 A schematic diagram of the existing heat exchanger shell structure;

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

[0019] In the diagram: 1-Regenerator cylinder, 2-Condenser cylinder, 3-Bottom reinforcing rib of cylinder, 4-Upper cylinder cover, 5-Tube support plate, 6-Ward plate, 7-Tube sheet, 8-Lower cylinder, 9-Vertical plate of vacuum insulation layer, 10-Bent plate of vacuum insulation layer, 11-Reinforcing rib of upper cylinder cover, 12-Side reinforcing rib of cylinder, 13-Grid plate, 14-Regenerator liquid distribution device, 15-Condenser heat exchange tube, 16-Regenerator heat exchange tube. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings.

[0021] Example 1

[0022] Figure 1 To improve upon the existing heat exchanger shell structure, the design consists of an upper shell cover 4, tube support plate 5, tube plate 7, lower shell 8, vacuum insulation layer vertical plate 9, vacuum insulation layer bending plate 10, upper shell cover reinforcing rib 11, shell side reinforcing rib 12, shell bottom reinforcing rib 3, grid plate 13, regenerator liquid distribution device 14, condenser heat exchange tube 15, and regenerator heat exchange tube 16.

[0023] like Figure 1 As shown, the lower cylinder 8, the vacuum insulation layer vertical plate 9, the vacuum insulation layer bent plate 10, and the tube sheet 7 together form the vacuum insulation layer. To prevent the lithium bromide solution from the regenerator from entering the condenser and causing refrigerant contamination, the vacuum insulation layer vertical plate 9 and the vacuum insulation layer bent plate 10 are fully welded to the bottom of the cylinder 8 and the tube sheets 7 on both sides, respectively. The joint between the vacuum insulation layer vertical plate 9 and the vacuum insulation layer bent plate 10 also needs to be fully welded to ensure a good sealing effect. The bottom reinforcing rib 3 of the cylinder 8 needs to be welded at the bottom, the side reinforcing ribs 12 of the cylinder 8 need to be welded on the left and right sides, and the upper cylinder cover 4 needs to be welded with the upper cylinder cover reinforcing rib 11 to ensure that the entire heat exchanger does not deform excessively.

[0024] Figure 2This is a schematic diagram of the structure of the present invention. A heat exchanger with a novel cylindrical structure includes a regenerator cylinder 1, a condenser cylinder 2, an upper cylinder cover 4, a tube support plate 5, a protective plate 6, a tube sheet 7, a grid plate 13, a regenerator liquid distribution device 14, a condenser heat exchange tube 15, and a regenerator heat exchange tube 16. The regenerator cylinder 1 has a U-shaped bending structure, and the condenser cylinder 2 consists of two L-shaped bending structures, respectively arranged on the left and right sides of the regenerator cylinder 1, with their bottoms at the same horizontal level and both higher than the bottom of the regenerator cylinder 1. The upper cylinder cover 4 is connected to... At the top of the condenser cylinder 2, the two sides are aligned with the condenser cylinder 2. The regenerator cylinder 1, condenser cylinder 2, and upper cylinder cover 4 are all connected to the tube sheet 7. The regenerator cylinder 1 and the tube sheet 7 constitute the liquid storage part of the regenerator. The condenser cylinder 2, the regenerator cylinder 1, and the tube sheet 7 constitute the liquid storage parts of the condenser on both sides. The liquid storage part of the condenser is higher than the liquid storage part of the regenerator. The upper cylinder cover 4 has a through opening at the position corresponding to the tube support plate 5. The tube support plate 5 extends to the top of the upper cylinder cover 4. The protective plate 6 has a central hole and is sleeved on the part of the tube support plate 5 that extends out of the upper cylinder cover 4.

[0025] The regenerator cylinder 1 and condenser cylinder 2 are fully welded together, and the regenerator cylinder 1, condenser cylinder 2, and upper cylinder cover 4 are all fully welded to the tube sheet 7. Tube support plates 5 are placed at appropriate intervals along the length of the cylinder, with each side of the tube support plate 5 connected to the condenser cylinder 2. The regenerator liquid distribution device 14 and grid plate 13 are installed between adjacent tube sheets 7 and tube support plates 5, and between tube support plates 5 themselves.

[0026] The regenerator liquid distribution device 14 is installed inside the regenerator, and the grid plate 13 is installed between the condenser and the regenerator.

[0027] The condenser heat exchange tube 15 is installed in the condenser, and the regenerator heat exchange tube 16 is installed in the regenerator.

[0028] The vertical sections of the two condenser cylinders 2 are at the same height and are fully welded to the lower end of the upper cylinder cover 4.

[0029] The protective plate 6 is fully welded to the upper cylinder cover 4, and the protective plate 6 is fully welded to the pipe support plate 5.

[0030] like Figure 2 As shown, during the processing of the cylindrical structure of this utility model, the condenser cylinder 2 is bent into an L-shape and arranged on the left and right sides of the U-shaped regenerator cylinder 1. The bottom of the two condenser cylinders 2 are at the same horizontal height and are fully welded to the regenerator cylinder 1 at the original vacuum insulation layer height, so that the liquid storage part of the condenser is higher than the liquid storage part of the regenerator, thereby reducing the heat transfer between the two.

[0031] The regenerator shell 1, condenser shell 2, and upper cover 4 are of the same length and aligned on both sides along their length. First, the regenerator shell 1 and the condenser shells 2 on both sides are fully welded to the tube sheet 7. Inside the shell, tube support plates 5 are welded at appropriate intervals along their length, and internal components such as grid plates 13, regenerator liquid distribution device 14, condenser heat exchange tubes 15, and regenerator heat exchange tubes 16 are installed.

[0032] After the internal components are installed, the upper cylinder cover 4 is welded to the top of the vertical section of the two condenser cylinder bodies 2 respectively, and welded to the tube sheet 7 on both sides in the length direction.

[0033] A through opening is made at the position corresponding to the upper cylinder cover 4 and the tube support plate 5, so that the tube support plate 5 extends to the outside of the upper cylinder cover 4. The protective plate 6 with the center opening is fitted onto the part of the tube support plate 5 that extends out of the upper cylinder cover 4. The joints between the upper cylinder cover 4 and the protective plate 6, and between the tube support plate 5 and the protective plate 6 are fully welded to ensure that the entire heat exchanger is in a vacuum state.

[0034] The embodiments described above are merely preferred embodiments of this utility model, and not all feasible embodiments of this utility model. Any obvious modifications made by those skilled in the art without departing from the general concept defined by the claims and their equivalents should be considered to be included within the scope of protection of the claims of this utility model.

Claims

1. A heat exchanger having a novel shell structure, characterized by: The utility model relates to a condenser and regenerator, including regenerator cylinder (1), condenser cylinder (2), upper cylinder cover (4), pipe support plate (5), guard plate (6), pipe plate (7), the regenerator cylinder (1) is U type bending structure, the condenser cylinder (2) is two, L type bending structure, is arranged respectively in the left and right sides of regenerator cylinder (1), bottom is in the same horizontal height, and all are higher than the bottom of regenerator cylinder (1), the upper cylinder cover (4) is connected in the top of both sides condenser cylinder (2), both sides are aligned with condenser cylinder (2), and regenerator cylinder (1), condenser cylinder (2), upper cylinder cover (4) are connected pipe plate (7), and the regenerator cylinder (1) and pipe plate (7) constitute regenerator liquid storage part, and the condenser cylinder (2), regenerator cylinder (1) and pipe plate (7) constitute both sides condenser liquid storage part, and the condenser liquid storage part is higher than regenerator liquid storage part, the upper cylinder cover (4) is opened in the position corresponding with pipe support plate (5) through mouth, and pipe support plate (5) is through to the upper cylinder cover (4) above, the guard plate (6) center opening, and sleeve joint in the part of pipe support plate (5) and project upper cylinder cover (4).

2. The heat exchanger with a new shell structure according to claim 1, characterized in that: The regenerator cylinder (1) and condenser cylinder (2) are full-welded at the joint, and the regenerator cylinder (1), condenser cylinder (2) and upper cylinder cover (4) are all full-welded with the pipe plate (7); along the length direction of the cylinder, the pipe support plate (5) is placed at an appropriate distance, and the two sides of the pipe support plate (5) are respectively connected with the condenser cylinder (2).

3. The heat exchanger with a new shell structure according to claim 1, characterized in that: The vertical sections of the two condenser cylinders (2) are consistent in height, and are full-welded with the lower end of the upper cylinder cover (4).

4. The heat exchanger with a new shell structure according to claim 1, characterized in that: The guard plate (6) is full-welded at the joint with the upper cylinder cover (4), and is full-welded at the joint with the pipe support plate (5).

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