Buffering bush for copper pipe of heat exchanger

Abstract

The utility model discloses a heat exchanger copper pipe buffer bushing, which comprises a copper pipe and a baffle plate, and is characterized in that a bushing made of butyl rubber is arranged at the assembly position of the copper pipe and the baffle plate, the bushing is of a mushroom head bayonet structure, and the copper pipe penetrates through the bushing. Compared with the traditional assembly of the baffle plate and the copper pipe, the direct contact friction between the baffle plate and the copper pipe is avoided, the gap between the pipe wall and the pipe wall is eliminated, the service life of the copper pipe is prolonged, and the heat exchange efficiency of the evaporator is improved.

Description

Technical Field

[0001] The utility model relates to the field of heat exchangers, in particular to a buffer bushing for copper tubes of a heat exchanger and a sealing buffer bushing for tube holes of a baffle plate of a shell-and-tube heat exchanger. Background Art

[0002] In the assembly of copper tubes and baffle plates of traditional shell-and-tube heat exchangers, in order to facilitate assembly, a gap is left between the copper tubes and the tube holes of the baffle plates. During the operation of the heat exchanger, due to the continuous change of temperature, the copper tubes expand and contract thermally. At the same time, under the impact of water flow, the copper tubes continuously collide and rub against the inner wall of the tube holes of the baffle plates. As a result, the copper tubes are continuously thinned, and in severe cases, the heat exchange tubes may crack, leading to leakage of the container.

[0003] Therefore, it is necessary to specifically develop a buffer bushing for copper tubes of a heat exchanger to overcome the above problems. Summary of the Utility Model

[0004] Purpose of the Utility Model: Aiming at the deficiencies and defects of the prior art, the utility model provides a buffer bushing for copper tubes of a heat exchanger. Compared with the assembly of traditional baffle plates and copper tubes, it avoids the direct contact and friction between the baffle plates and the copper tubes, eliminates the gap between the tube wall and the tube hole, and improves the service life of the copper tubes and the heat exchange efficiency of the evaporator.

[0005] Technical Solution: A buffer bushing for copper tubes of a heat exchanger of the utility model includes a copper tube and a baffle plate, and is characterized in that: a bushing made of butyl rubber is arranged at the assembly position of the copper tube and the baffle plate. The bushing is of a mushroom head bayonet structure, and the copper tube passes through the bushing.

[0006] Wherein, the bushing fills the assembly gap between the copper tube and the baffle plate.

[0007] Wherein, the bushing is provided with a hole body for the copper tube to pass through.

[0008] Wherein, the copper tube and the baffle plate are arranged on a heat exchanger.

[0009] Wherein, the copper tube and the baffle plate are arranged on the side part of the cylinder body of the evaporator of the heat exchanger.

[0010] Wherein, the heat exchanger is a shell-and-tube heat exchanger.

[0011] Wherein, the bushing is a sealing buffer bushing for tube holes of a baffle plate of a shell-and-tube heat exchanger.

[0012] Beneficial effects: Compared with the prior art, the utility model has the following remarkable advantages: To avoid the control friction between the copper tube and the baffle plate, the utility model adopts a buffer bushing installed between the copper tube and the baffle plate. The bushing is made of butyl rubber, which is corrosion-resistant, high-temperature resistant, and has good flexibility. The structure of the bushing is in the form of a mushroom head bayonet, which is convenient for installation. After installing the bushing, the copper tube is inserted. Because rubber has good flexibility, it can be closely attached to the outer wall of the copper tube after being inserted into the copper tube, and there is no assembly gap. During the operation of the evaporator, the bushing can deform with the thermal expansion and contraction of the copper tube, avoiding the contact between the copper tube and the baffle plate. Description of the drawings

[0013] Figure 1 Figure 6 is a schematic diagram of the connection structure between the copper tube and the baffle plate of the prior art;

[0014] Figure 2 Figure 10 is a schematic diagram of the structure of the present utility model;

[0015] Figure 3 Figure 14 is a schematic diagram of the structure of the bushing of the present utility model Figure 1 ;

[0016] Figure 4 Figure 20 is a schematic diagram of the structure of the bushing of the present utility model Figure 2 ;

[0017] In the figure, 1 is the cylinder body; 2 is the copper tube; 3 is the bushing; 4 is the baffle plate. Detailed implementation manners

[0018] The following further describes the technical solution of the present utility model in conjunction with the drawings and specific implementation manners.

[0019] The buffer bushing for the heat exchanger copper tube of the present utility model includes a copper tube 2 and a baffle plate 4. A bushing 3 made of butyl rubber is provided at the assembly position between the copper tube 2 and the baffle plate 4. The bushing 3 has a mushroom head bayonet structure, and the copper tube 2 passes through the bushing 3. Among them, the bushing 3 fills the assembly gap between the copper tube 2 and the baffle plate 4. The bushing 3 is provided with a hole body for the copper tube 2 to pass through. The copper tube 2 and the baffle plate 4 are arranged on the heat exchanger. The copper tube 2 and the baffle plate 4 are arranged on the side part of the cylinder body 1 of the evaporator of the heat exchanger. The heat exchanger is a shell-and-tube heat exchanger. The bushing 3 is a shell-and-tube heat exchanger baffle plate tube hole sealing buffer bushing.

[0020] To avoid the control friction between the copper tube and the baffle plate, the utility model adopts a buffer bushing installed between the copper tube and the baffle plate. The bushing is made of butyl rubber, which is corrosion-resistant, high-temperature resistant, and has good flexibility. The structure of the bushing is in the form of a mushroom head bayonet, which is convenient for installation. After installing the bushing, the copper tube is inserted. Because rubber has good flexibility, it can be closely attached to the outer wall of the copper tube after being inserted into the copper tube, and there is no assembly gap. During the operation of the evaporator, the bushing can deform with the thermal expansion and contraction of the copper tube, avoiding the contact between the copper tube and the baffle plate.

[0021] As Figures 1-4 , compared with the existing installation method, after installing the bushing, the friction between the copper tube and the baffle is eliminated, and at the same time, the sealing gap between the copper tube and the baffle is eliminated. While extending the service life of the copper tube, the performance of the evaporator is also improved. The bushing is cheap and easy to install, and can be widely used in heat exchangers of different models.

Claims

1. A heat exchanger copper tube buffer bushing, comprising a copper tube (2) and a baffle (4), characterized in that: A butyl rubber bushing (3) is provided at the assembly point between the copper tube (2) and the baffle (4); the bushing (3) is a mushroom head bayonet structure, and the copper tube (2) passes through the bushing (3).

2. The heat exchanger copper tube buffer bushing according to claim 1, characterized in that: The bushing (3) fills the assembly gap between the copper tube (2) and the baffle (4).

3. The heat exchanger copper tube buffer bushing according to claim 1, characterized in that: The bushing (3) is provided with a hole for the copper tube (2) to pass through.

4. The heat exchanger copper tube buffer bushing according to claim 1, characterized in that: The copper tube (2) and the baffle (4) are arranged on the heat exchanger.

5. The heat exchanger copper tube buffer bushing according to claim 4, characterized in that: The copper tube (2) and the baffle (4) are arranged on the side of the cylinder (1) of the evaporator of the heat exchanger.

6. The heat exchanger copper tube buffer bushing according to claim 5, characterized in that: The heat exchanger is a shell and tube heat exchanger.

7. The heat exchanger copper tube buffer bushing according to claim 6, characterized in that: The bushing (3) is a sealing buffer bushing for baffle tube holes of a shell and tube heat exchanger.

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