Double-seal pipe group fixing plate assembly for heat exchanger

Abstract

The utility model discloses a double-seal pipe group fixing plate assembly for a heat exchanger, which comprises a positioning plate, the positioning plate comprises a fixing plate annularly arranged in the circumferential direction, the two sides of the fixing plate are provided with tooth-shaped sealing surfaces, and the two sides of one end of the fixing plate are provided with inclined surfaces. The utility model has the advantages of double-sealing effect, high temperature resistance, high pressure resistance and vibration resistance.

Description

Technical Field

[0001] The utility model relates to the field of fixing plates, in particular to a double-sealed tube group fixing plate assembly for a heat exchanger. Background Art

[0002] The traditional positioning plate only adopts welding for sealing. Under high-temperature and high-pressure working conditions, due to different metal materials and thicknesses at the connection part, the thermal expansion coefficients are different, and the thermal expansion and contraction generated during the instant conversion of heat and cold easily cause cracking and leakage at the welding place. Therefore, it needs to be improved. Content of the Utility Model

[0003] The purpose of the utility model is to provide a double-sealed tube group fixing plate assembly for a heat exchanger, so as to solve the problems put forward in the above background art. It has the advantages of double-sealing effect, high temperature and high pressure resistance, and vibration resistance.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A double-sealed tube group fixing plate assembly for a heat exchanger, including a positioning plate. The positioning plate includes fixing plates annularly arranged in the circumferential direction. Both sides of the fixing plate are provided with toothed sealing surfaces, and both sides at one end of the fixing plate are provided with inclined surfaces.

[0005] By adopting the above technical solution, the inclined surfaces are convenient for clamping. The toothed sealing surfaces on both sides of the fixing plate are fastened to the two surfaces in close contact with the fixing plate, so as to generate a multi-layer line sealing effect. After the sealing is generated by fastening, welding is carried out to play a role in reinforcement, and finally a double-sealing effect is achieved. At the same time, it has the functions of high temperature and high pressure resistance and vibration resistance.

[0006] As a further scheme of the utility model: A plurality of heat exchange tube grooves penetrating the positioning plate are arranged in the middle of the positioning plate.

[0007] By adopting the above technical solution, the arrangement of the heat exchange tube grooves is convenient for inserting heat pipes.

[0008] As a still further scheme of the utility model: A pressing flange and a heat exchanger shell are respectively arranged on both sides of the positioning plate. The pressing flange and the heat exchanger shell form a clamping groove for accommodating the fixing plate. High-strength bolts are bolted between the pressing flange and the heat exchanger shell.

[0009] By adopting the above technical solution, the positioning plate is located between the pressing flange and the heat exchanger shell, and the three are in a tightly connected state by using high-strength bolts.

[0010] Preferably, the high-strength bolts are arranged perpendicular to the length of the clamping groove.

[0011] Preferably, one end of the fixing plate is welded to the pressing flange.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The inclined surface is provided for easy clamping. The toothed sealing surfaces on both sides of the fixing plate are fastened to the two surfaces in close contact with the fixing plate, thereby producing a multi-layer line sealing effect. After the fastening generates the sealing, welding is carried out to play a reinforcing role, and finally a double-sealing effect is achieved, and it has the functions of high temperature and high pressure resistance and vibration resistance at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the front view of the embodiment;

[0015] Figure 2 is Figure 1 the cross-sectional view in the B-B direction of;

[0016] Figure 3 is the partial enlarged view of area A in the figure;

[0017] Figure 4 is the application diagram of the embodiment.

[0018] In the figure: 1, positioning plate; 2, fixing plate; 3, sealing surface; 4, inclined surface; 5, heat exchange tube groove; 6, pressing flange; 7, heat exchanger shell; 8, clamping groove; 9, high-strength bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The technical solutions in the embodiments of the present utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0020] In the embodiment of the present utility model,

[0021] a double-sealing tube group fixing plate assembly for a heat exchanger, as Figures 1-4 shown, includes a positioning plate 1. The positioning plate 1 includes a fixing plate 2 provided around the circumference. Toothed sealing surfaces 3 are provided on both sides of the fixing plate 2, and inclined surfaces 4 are provided on both sides of one end of the fixing plate 2.

[0022] A plurality of heat exchange tube grooves 5 penetrating the positioning plate 1 are provided in the middle of the positioning plate 1.

[0023] A pressing flange 6 and a heat exchanger shell 7 are respectively provided on both sides of the positioning plate 1. The pressing flange 6 and the heat exchanger shell 7 form a clamping groove 8 for accommodating the fixing plate 2, and a high-strength bolt 9 is bolted between the pressing flange 6 and the heat exchanger shell 7.

[0024] The high-strength bolt 9 is perpendicularly arranged to the length of the clamping groove 8.

[0025] One end of the fixed plate 2 is welded to the pressing flange 6.

[0026] Working principle:

[0027] The inclined surface 4 is provided to facilitate snapping in. The toothed sealing surfaces 3 on both sides of the fixed plate 2 are used to fasten the two surfaces in close contact with the fixed plate 2, thereby generating a multi-layer line sealing effect. After the fastening generates a seal, welding is carried out to play a reinforcing role, and finally a double-sealing effect is achieved, and at the same time, it has the functions of high temperature and high pressure resistance and vibration resistance.

[0028] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A double-sealed tube group fixing plate assembly for a heat exchanger, comprising a positioning plate (1), characterized in that: The positioning plate (1) includes a fixing plate (2) arranged circumferentially, and both sides of the fixing plate (2) are provided with toothed sealing surfaces (3), and both sides of one end of the fixing plate (2) are provided with inclined surfaces (4).

2. The double-sealed tube group fixing plate assembly for a heat exchanger according to claim 1, wherein: A plurality of heat exchange tube grooves (5) penetrating the positioning plate (1) are arranged in the middle of the positioning plate (1).

3. The double-sealed tube group fixing plate assembly for a heat exchanger according to claim 1, characterized in that: A pressing flange (6) and a heat exchanger housing (7) are respectively arranged on both sides of the positioning plate (1), and the pressing flange (6) and the heat exchanger housing (7) form a clamping groove (8) for accommodating the fixing plate (2), and high-strength bolts (9) are bolted between the pressing flange (6) and the heat exchanger housing (7).

4. The double-sealing tube group fixing plate assembly for a heat exchanger according to claim 3, wherein: The high-strength bolts (9) are arranged perpendicular to the length of the clamping groove (8).

5. The double-sealed tube group fixing plate assembly for a heat exchanger according to claim 1, characterized in that: One end of the fixing plate (2) is welded to the pressing flange (6).

Images