Anti-corrosion tube plate for shell-and-tube heat exchanger

Abstract

The utility model discloses an anti-corrosion tube plate for a shell-and-tube heat exchanger, which is composed of a tube plate assembly, the tube plate assembly comprises a double-faced turnover shell plate, and the front face and the rear face of the double-faced turnover shell plate are respectively an inclined slope structure and a vertical face structure. A plurality of sleeves which extend outwards in the axial direction of the tube shell and are used for heat exchange tubes to penetrate through and assemble are arranged on the outer sides of the two faces of the tube shell, a first gasket and a second gasket are fixedly glued to the inner sides of the front face and the rear face of the double-face turnover shell plate respectively, and a surrounding plate is welded between the two inner side faces of the double-face turnover shell plate. According to the anti-corrosion tube plate for the shell-and-tube heat exchanger, the design of the double-face turnover shell plate is adopted, the impact force of fluid on the tube plate assembly can be effectively dispersed by means of the front panel of the inclined slope surface structure and the sleeve, meanwhile, the surrounding plate is matched, the overall strength and stability of the tube plate assembly are enhanced, and in addition, the first gasket and the second gasket are arranged, so that the anti-corrosion effect is good. And the corrosion resistance and the sealing performance of the tube plate assembly are enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat exchanger technical field especially a kind of anticorrosive tube plate for shell-and-tube heat exchanger. BACKGROUND

[0002] As one of the widely used heat exchange equipment in industrial field, the core component of shell-and-tube heat exchanger is tube plate, which plays an important role in supporting heat exchange tube, separating fluid space and ensuring effective flow of fluid in tube and between tubes, especially in some special application scenarios, such as chemical industry, petroleum, pharmaceutical industry, etc., shell-and-tube heat exchanger often needs to face corrosive fluid, therefore, the application of anticorrosive tube plate is particularly important, which usually adopts special alloy material or surface treatment technology to improve its corrosion resistance, thereby prolonging the service life of heat exchanger and ensuring stable operation of equipment.

[0003] In the process of realizing the present application, the inventors have found at least the following problems in the prior art:

[0004] In actual application, tube plates are mostly arranged in staggered manner along the shell axis, which makes tube plates prone to deformation when subjected to fluid impact, and fluid can generate a large impact force on tube plates during high-speed flow, which can even affect the sealing effect between tube plates and heat exchange tubes, thereby reducing the heat exchange efficiency of heat exchanger, in addition, deformation of tube plates can also cause stress concentration and accelerate fatigue damage of tube plates, thereby shortening the service life of heat exchanger.

[0005] Therefore, the above technical problems need to be solved. CONTENT OF THE UTILITY MODEL

[0006] In order to overcome the shortcomings of the prior art, the utility model provides an anticorrosive tube plate for shell-and-tube heat exchanger, which solves the problems proposed in the background.

[0007] In order to solve the above technical problems, the basic technical scheme of the utility model is as follows:

[0008] An anticorrosive tube plate for shell-and-tube heat exchanger is composed of tube plate assemblies sleeved on the outside of a plurality of heat exchange tubes and welded in the shell,

[0009] The tube plate assembly includes a double-sided folded shell plate, the front and rear surfaces of the double-sided folded shell plate are respectively inclined slope surface structure and vertical surface structure, and a plurality of sleeves for the heat exchange tube to pass through and assemble are provided on the outer sides of the two surfaces and extend outward along the shell axis, the inner sides of the front and rear surfaces of the double-sided folded shell plate are respectively glued and fixed with first and second gaskets, and a surrounding plate is welded between the two inner sides of the double-sided folded shell plate and covers the periphery of the first and second gaskets.

[0010] Preferably, the lining strip glued to the outer side of the surrounding plate is arranged at the inner edge of the double-sided folded shell plate and reserved with a receiving groove for embedding the lining strip.

[0011] Preferably, the sleeve is arranged with a chamfer at the periphery of the end face of the double-sided folded shell plate.

[0012] Preferably, the inner side of the surrounding plate is welded with a plurality of pressing blocks which can be arranged between the first gasket and the second gasket.

[0013] The utility model discloses the beneficial effects are:

[0014] The technical scheme of the utility model discloses the design of double-sided folded shell plate, with the aid of the front panel and the sleeve of inclined slope surface structure, can effectively disperse the impact force of fluid to the tube plate assembly, at the same time, cooperate with the surrounding plate welded between the two inner sides of double-sided folded shell plate, enhance the overall strength and stability of tube plate assembly, reduce the deformation and stress concentration phenomenon of tube plate, prolong the service life of heat exchanger, in addition, the setting of first gasket and second gasket enhances the corrosion resistance and sealing property of tube plate assembly, ensures the stable operation of equipment. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the installation structure schematic drawing of the utility model tube plate assembly;

[0016] Figure 2 It is the split structure schematic drawing of the utility model tube plate assembly;

[0017] Figure 3 It is the structure schematic drawing of first gasket and second gasket of the utility model;

[0018] Figure 4 It is the structure schematic drawing of surrounding plate of the utility model;

[0019] Figure 5 It is the structure schematic drawing of sleeve of the utility model;

[0020] Mark explanation:

[0021] 100, tube plate assembly;

[0022] 110, double-sided folded shell plate; 120, sleeve; 130, first gasket; 140, second gasket; 150, baffle; 160, batten;

[0023] 1210, chamfer;

[0024] 1510, briquetting. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] Please refer to Figures 1-5 The present application provides a technical solution: a kind of anticorrosion tube plate for shell-and-tube heat exchanger, it is composed of tube plate assembly 100 that is sleeved in the outside of several heat exchange pipes and is welded in the tube shell, tube plate assembly 100 includes double-sided folded shell plate 110, the front and rear of double-sided folded shell plate 110 are respectively inclined slope surface structure and facade structure, and its two sides outside are all equipped with several sleeves 120 that can be used for heat exchange pipe to pass through assembly and extend along the axial direction of tube shell outward, the inner side of the front and rear of double-sided folded shell plate 110 is respectively glued and fixed with first gasket 130 and second gasket 140, and the two inner sides of double-sided folded shell plate 110 are welded with baffle 150 that is covered in the periphery of first gasket 130 and second gasket 140.

[0027] Based on the structure of the above setting, the tube shell heat exchanger is provided with the anticorrosion tube plate which is composed of the tube plate assembly 100, wherein the tube plate assembly 100 is composed of the double-sided folding shell plate 110, the first gasket 130, the second gasket 140, the surrounding plate 150 and a plurality of sleeves 120, specifically, the front and rear surfaces of the double-sided folding shell plate 110 are respectively provided with the inclined slope surface structure and the vertical surface structure, the structure design enables the fluid to flow along the inclined slope surface when impacting the tube plate assembly 100, effectively reduces the direct impact force on the tube plate assembly 100, thereby reducing the deformation risk of the tube plate assembly 100, at the same time, the vertical surface structure side also provides sufficient support area for the tube plate assembly 100, enhances the overall stability of the tube plate assembly 100, both sides of the double-sided folding shell plate 110 are provided with the sleeves 120 which extend outward along the tube shell axis, the sleeves 120 can be penetrated by the heat exchange tubes, the design of the sleeves 120 not only facilitates the installation and positioning of the heat exchange tubes, but also can absorb the vibration caused by the fluid impact to a certain extent, protect the heat exchange tubes from being damaged, the inner sides of the double-sided folding shell plate 110 are respectively provided with the first gasket 130 and the second gasket 140, the gaskets and the gasket 160 are made of corrosion-resistant materials such as Teflon, which can effectively isolate the corrosion of the corrosive fluid to the tube plate, enhance the corrosion resistance of the tube plate, the surrounding plate 150 is welded between the two inner sides of the double-sided folding shell plate 110 and covers the outer periphery of the first gasket 130 and the second gasket 140, the existence of the surrounding plate 150 not only further enhances the overall strength of the tube plate, but also can prevent fluid leakage to a certain extent, improve the sealing performance, the tube shell heat exchanger is provided with the anticorrosion tube plate, by adopting the double-sided folding shell plate 110 design, with the help of the inclined slope surface structure of the front plate and the sleeves 120, the impact force of the fluid on the tube plate assembly 100 can be effectively dispersed, at the same time, cooperating with the surrounding plate 150 which is welded between the two inner sides of the double-sided folding shell plate 110, the overall strength and stability of the tube plate assembly 100 are enhanced, the deformation and stress concentration of the tube plate are reduced, and the service life of the heat exchanger is prolonged, in addition, the first gasket 130 and the second gasket 140 enhance the corrosion resistance and sealing performance of the tube plate assembly 100, and ensure the stable operation of the equipment.

[0028] Further, the gasket 160 is glued to the outer side of the surrounding plate 150, the surrounding plate 150 is arranged at the inner edge of the double-sided folding shell plate 110 and is provided with a receiving groove for embedding the gasket 160.

[0029] Further, the sleeves 120 away from the peripheral end surface of the double-sided folding shell plate 110 are provided with chamfers 1210.

[0030] Further, the inner side of the surrounding plate 150 is welded with a plurality of pressing blocks 1510 which can be arranged between the first gasket 130 and the second gasket 140.

[0031] According to the disclosure and teaching of the above description, the skilled in the art of the present application can also change and modify the above embodiments. Therefore, the present application is not limited to the specific embodiments disclosed and described above, and some modifications and changes of the present application should also fall within the protection scope of the claims of the present application. In addition, although some specific terms are used in the specification, these terms are only for convenience of description and do not constitute any limitation on the present application.

Claims

1. A kind of anticorrosive tube plate for shell-and-tube heat exchanger, which is composed of tube plate assembly (100) sleeved on the outside of several heat exchange tubes and welded in the tube shell; characterized in that The tube plate assembly (100) includes double-sided folding shell plate (110), the front and rear two sides of the double-sided folding shell plate (110) are respectively inclined slope structure and vertical structure, and the outer sides of the two sides are respectively provided with several sleeves (120) extending outward along the axial direction of the tube shell, which can be used for heat exchange tube to pass through assembly, the inner sides of the front and rear two sides of the double-sided folding shell plate (110) are respectively glued and fixed with first gasket (130) and second gasket (140), and the double-sided folding shell plate (110) is welded with the surrounding plate (150) covering the periphery of the first gasket (130) and the second gasket (140) between the two inner sides.

2. A corrosion resistant tube plate for a shell and tube heat exchanger according to claim 1, characterized in that: It also includes lining strip (160) glued to the outer side of the surrounding plate (150), the surrounding plate (150) is arranged at the inner edge of the double-sided folding shell plate (110) and is provided with accommodating groove for embedding the lining strip (160).

3. A corrosion resistant tube plate for a shell and tube heat exchanger as defined in claim 1 wherein: The end surface periphery of the double-sided folding shell plate (110) is provided with chamfer (1210) away from several sleeves (120).

4. A corrosion resistant tube sheet for a shell and tube heat exchanger as defined in claim 1 wherein: The inner side of the surrounding plate (150) is welded with several pressing blocks (1510) which can be arranged between the first gasket (130) and the second gasket (140).

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