Composite plate tower

Abstract

A composite board tower (1) comprises a hollow tower body (3) formed by composite boards (2), and each composite board (2) comprises a structural layer (4) arranged on the outer side of the tower body (3) and a corrosion-resistant layer (5) arranged on the inner side of the tower body (3); the supporting component (6) is arranged in the tower body (3); a connecting portion (7) connected between the support member (6) and the tower body (3), the connecting portion (7) being connected to the structural layer (4) by welding and to the support member (6) by welding; the connecting part (7) covers a part of the composite board (2); the corrosion-resistant layer (5) of the composite plate (2) is partially stripped in the area covered by the connecting part (7), so that a part of the structural layer (4) is exposed to the interior of the tower body (3); a connection (7) is connected to the exposed portion of the structural layer (4) to seal the exposed portion of the structural layer (4) with respect to the interior of the tower body (3).

Description

Technical Field

[0001] The present application relates to a composite plate column used in the chemical processing industry, and more particularly, to a composite plate column having internal support elements welded to the composite plate column body. Background Art

[0002] Composite plate towers are widely used in the chemical, petroleum, and pharmaceutical industries due to their excellent structural strength and corrosion resistance. These towers are typically constructed from double or multiple layers of metal composite plates. The outer layer is typically constructed from carbon steel, a structural material with excellent mechanical strength and weldability to withstand the pressure, temperature, and other external loads during equipment operation. The inner layer is constructed from corrosion-resistant alloys such as stainless steel and nickel-based alloys to resist corrosion from the media within the tower.

[0003] During the design and manufacturing process of composite plate towers, how to reliably install support components (such as tower tray support rings, packing support grids, distributor support beams, etc.) inside the tower body is a key technical issue. These internal support components need to be firmly connected to the tower body to withstand the weight of the internal components themselves and the various loads generated during operation. Traditionally, if the support components are directly welded to the thin corrosion-resistant layer, it is difficult to ensure the strength and stability of the connection. If the corrosion-resistant layer is penetrated by welding, the sealing and corrosion resistance of the welding area must be ensured to prevent the structural layer from being exposed to the corrosive medium, which may cause equipment leakage or failure.

[0004] The existing technology lacks unified and detailed specifications and guidance regarding the details of internal welded connections in composite plate equipment, particularly regarding the weld node structure under different operating conditions or load conditions (such as constant load, fatigue, vibration, etc.), pre-weld cladding treatment (such as peeling depth and width), welding timing (such as before and after heat treatment), and post-weld treatment. This leads to suppliers using different treatment methods in actual operations. Some improper welding details may lead to reduced corrosion resistance in the connection area, such as excessive welds affecting the cladding, or failure to fully consider design factors such as fatigue and total load.

[0005] Therefore, there is a need for a composite plate tower with reliable structure, good sealing performance and excellent corrosion resistance. Utility Model Content

[0006] The utility model provides a composite plate tower, wherein the welding area between the tower body and the internal supporting components of the composite plate tower has a specific structural arrangement, aiming to enhance the reliability of the welding area of ​​the composite plate tower.

[0007] The present application proposes a composite plate tower, characterized in that the composite plate tower comprises: a hollow tower body composed of composite plates, wherein the composite plates comprise a structural layer arranged on the outside of the tower body and a corrosion-resistant layer arranged on the inside of the tower body; a supporting member arranged inside the tower body; a connecting portion connected between the supporting member and the tower body, wherein the connecting portion is connected to the structural layer by welding and is connected to the supporting member by welding; the connecting portion covers a portion of the composite plate; the corrosion-resistant layer of the composite plate is locally peeled off in the area covered by the connecting portion to expose a portion of the structural layer to the interior of the tower body; the connecting portion is connected to the exposed portion of the structural layer to seal the exposed portion of the structural layer relative to the interior of the tower body.

[0008] According to an optional embodiment, the connecting portion includes an intermediate connecting member and a protective material layer; the intermediate connecting member is connected to the exposed portion of the structural layer by welding; the protective material layer covers the area of ​​the exposed portion of the structural layer that is not covered by the intermediate connecting member and the weld of the intermediate connecting member, so as to seal the exposed portion of the structural layer relative to the interior of the tower body; and the supporting member is connected to the intermediate connecting member by welding.

[0009] According to an optional embodiment, the intermediate connecting member includes a vent hole; and the protective material layer covers one end of the vent hole.

[0010] According to an optional embodiment, the weld connecting the supporting member and the intermediate connector is a fillet weld; and the weld connecting the intermediate connector and the structural layer is a fillet weld.

[0011] According to an optional embodiment, the connection portion includes a build-up weld layer; the build-up weld layer covers the exposed portion of the structural layer; and the supporting member is connected to the build-up weld layer by welding.

[0012] According to an optional embodiment, the weld connecting the supporting member and the surfacing layer is a fillet weld.

[0013] According to an optional embodiment, the corrosion-resistant layer is tightly adhered to the structural layer by explosion welding.

[0014] According to an optional embodiment, the structural layer is made of carbon steel.

[0015] According to an optional embodiment, the corrosion-resistant layer is made of stainless steel.

[0016] The composite plate tower of the present application can ensure that the connection between the internal support components and the tower body has sufficient structural strength (by welding to the structural layer) and can effectively prevent the corrosive medium from contacting the structural layer, thereby significantly improving the reliability and service life of the composite plate tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings, in which:

[0018] Figure 1 is a cross-sectional view of a composite plate tower according to the present application.

[0019] Figure 2 yes Figure 1 A partially enlarged cross-sectional view of a composite plate tower.

[0020] Figure 3 yes Figure 2 A partially enlarged cross-sectional view of an embodiment of a composite plate tower.

[0021] Figure 4 yes Figure 2 A partially enlarged cross-sectional view of another embodiment of a composite plate tower.

[0022] According to the detailed description carried out below in conjunction with the accompanying drawings, other purposes and features of the embodiments of this invention will become apparent. However, it should be understood that the accompanying drawings are designed for illustrative purposes only and are not intended to limit the scope of this application. DETAILED DESCRIPTION

[0023] The following describes exemplary embodiments of the present application in more detail with reference to the accompanying drawings. Although the accompanying drawings illustrate exemplary embodiments of the present application, it should be understood that the present application can be implemented in various forms and is not limited by the embodiments shown in the accompanying drawings. Rather, these embodiments are provided to enable a more thorough understanding of the present application and to fully convey the scope of the present application to those skilled in the art.

[0024] Figure 1 is a cross-sectional view of a composite plate tower according to the present application. Figure 2 yes Figure 1 A partial enlarged cross-sectional view of a composite plate tower. Figure 1 As shown, the composite plate tower 1 includes a hollow tower body 3 , a support member 6 disposed inside the tower body 3 , and a connecting portion 7 connected between the support member 6 and the tower body 3 .

[0025] The tower body 3 is composed of composite panels 2. Figure 2As shown, the composite plate 2 is a double-layer or multi-layer metal composite plate (a double-layer structure is shown in the figure), which includes a structural layer 4 arranged on the outside of the tower body 3 and a corrosion-resistant layer 5 arranged on the inside of the tower body 3. Preferably, the structural layer 4 is made of carbon steel to provide good mechanical strength and weldability, and can withstand pressure, temperature and other external loads during equipment operation. The corrosion-resistant layer 5 is made of stainless steel to resist corrosion from the medium in the tower. In order to ensure a close fit and excellent bonding strength between the structural layer 4 and the corrosion-resistant layer 5, the corrosion-resistant layer 5 can be tightly fitted to the structural layer 4 by explosion welding. The support member 6 is various internal parts arranged inside the tower body 3, such as a tower tray support ring, a filler support grid or a distributor support beam, etc., which are used to support the equipment or filler in the tower. The connecting portion 7 is used to firmly connect the support member 6 to the tower body 3. In order to ensure the strength and corrosion resistance of the connection, the connecting portion 7 is connected to the structural layer 4 by welding, and is connected to the support member 6 by welding.

[0026] In order to solve the strength and corrosion resistance problems existing in the connection of the internal supporting components of the traditional composite plate tower, the composite plate tower 1 of the present application is specially treated in the connection area between the connecting portion 7 and the tower body 3. Specifically, the connecting portion 7 covers a portion of the composite plate 2. In the area covered by the connecting portion 7, the corrosion-resistant layer 5 of the composite plate 2 is partially peeled off to expose a portion of the structural layer 4 to the interior of the tower body 3. In this way, the connecting portion 7 can be directly connected to the exposed portion of the structural layer 4, thereby obtaining reliable welding strength. At the same time, the connecting portion 7 is also responsible for sealing the exposed portion of the structural layer 4 relative to the interior of the tower body 3 to prevent the corrosive medium in the tower from contacting the structural layer 4, thereby avoiding corrosion and leakage.

[0027] Figure 3 yes Figure 2 A partially enlarged cross-sectional view of an embodiment of a composite plate tower. Figure 3 As shown, the connection portion 7 includes an intermediate connection member 8 and a protective material layer 9. Before the connection is made, as shown in FIG. Figure 3 As shown, a connection area is first determined on the composite plate 2. The corrosion-resistant layer 5 is partially removed within this area to expose the underlying structural layer 4. The removal area should be slightly larger than the size of the intermediate connector 8 to allow sufficient space for welding. The intermediate connector 8 is then welded to the exposed portion of the structural layer 4. Preferably, the weld connecting the intermediate connector 8 to the structural layer 4 is a fillet weld to provide good connection strength and sealing.

[0028] In order to further ensure the sealing of the structural layer 4, the protective material layer 9 covers the areas of the exposed part of the structural layer 4 that are not covered by the intermediate connector 8 and the weld of the intermediate connector 8. The protective material layer 9 is usually made of the same or compatible corrosion-resistant material as the corrosion-resistant layer 5. By welding, the exposed part of the structural layer 4 is completely sealed relative to the interior of the tower body 3 to prevent the intrusion of corrosive media. Finally, the support member 6 is connected to the intermediate connector 8 by welding. Preferably, the weld connecting the support member 6 and the intermediate connector 8 is a fillet weld to ensure a firm connection between the support member 6 and the intermediate connector 8. In addition, in order to balance the pressure or discharge gas during the welding process, the intermediate connector 8 may include a vent 10. In order to maintain the sealing, the protective material layer 9 covers one end of the vent 10 to ensure that the end of the vent 10 inside the tower body 3 is effectively sealed.

[0029] Figure 4 yes Figure 2 A partially enlarged cross-sectional view of another embodiment of a composite plate tower. Figure 3 Compared to the embodiment shown in Figure 4 In the embodiment shown, the connection portion 7 comprises a build-up layer 11 instead of an intermediate connection piece 8. Figure 3 Similar to the embodiment shown, before connection is made, a connection area is first determined on the composite plate 2, and the corrosion-resistant layer 5 is partially peeled off in this area to expose the underlying structural layer 4. Then, a cladding layer 11 is provided in the exposed portion of the structural layer 4. The cladding layer 11 directly covers the exposed portion of the structural layer 4 through a cladding process. The cladding layer 11 is generally clad with a corrosion-resistant material that is the same as or compatible with the corrosion-resistant layer 5, forming a thick layer with corrosion-resistant properties, thereby sealing the exposed portion of the structural layer 4 relative to the interior of the tower body 3. Finally, the support member 6 is connected to the cladding layer 11 by welding. Preferably, the weld connecting the support member 6 and the cladding layer 11 is a fillet weld to ensure a firm connection between the support member 6 and the cladding layer 11. This method simplifies the connection structure and reduces the number of components while still providing reliable strength and corrosion resistance.

[0030] Through the above two implementation methods, the composite plate tower 1 of the present application can ensure that the connection between the internal support member 6 and the tower body 3 has sufficient structural strength (by welding to the structural layer 4) and can effectively prevent the corrosive medium from contacting the structural layer 4, thereby significantly improving the reliability and service life of the composite plate tower.

[0031] As used herein, the singular forms "a," "an," and "the" should be interpreted as meaning "at least one," and therefore, unless expressly stated otherwise, may also include a plurality of entities of the same kind. It should also be understood that the terms "comprise," "include," "includes," and / or "includes" specify the presence of stated features, actions, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, actions, integers, steps, operations, elements, components, and / or groups thereof.

[0032] The specific embodiments described above are only for the purpose of more clearly describing the principles of the present application, wherein each component is clearly shown or described to make the principles of the present application easier to understand. Without departing from the scope of the present application, those skilled in the art can easily make various modifications or changes to the present application, and such modifications or changes should all be included in the scope of patent protection of the present application.

Claims

1. A composite plate tower (1), characterized in that: The composite plate tower (1) comprises: A hollow tower body (3) composed of a composite plate (2), wherein the composite plate (2) comprises a structural layer (4) arranged on the outside of the tower body (3) and a corrosion-resistant layer (5) arranged on the inside of the tower body (3); a supporting member (6) arranged inside the tower body (3); a connecting portion (7) connected between the supporting member (6) and the tower body (3), wherein the connecting portion (7) is connected to the structural layer (4) by welding, and is also connected to the supporting member (6) by welding; The connecting portion (7) covers a portion of the composite plate (2); The corrosion-resistant layer (5) of the composite plate (2) is partially peeled off in the area covered by the connecting portion (7), so as to expose a portion of the structural layer (4) to the interior of the tower body (3); The connecting portion (7) is connected to the exposed portion of the structural layer (4) to seal the exposed portion of the structural layer (4) relative to the interior of the tower body (3).

2. The composite plate tower (1) according to claim 1, characterized in that The connecting portion (7) includes an intermediate connecting piece (8) and a protective material layer (9); The intermediate connecting member (8) is connected to the exposed portion of the structural layer (4) by welding; The protective material layer (9) covers the area of ​​the exposed portion of the structural layer (4) that is not covered by the intermediate connector (8) and the weld of the intermediate connector (8), so as to seal the exposed portion of the structural layer (4) relative to the interior of the tower body (3); The supporting member (6) is connected to the intermediate connecting member (8) by welding.

3. The composite plate tower (1) according to claim 2, characterized in that The intermediate connecting member (8) includes a vent hole (10); The protective material layer (9) covers one end of the vent hole (10).

4. The composite plate tower according to claim 3, characterized in that The weld connecting the supporting member (6) and the intermediate connecting member (8) is a fillet weld; and the weld connecting the intermediate connecting member (8) and the structural layer (4) is a fillet weld.

5. The composite plate tower (1) according to claim 1, characterized in that The connecting portion (7) includes a surfacing layer (11); The surfacing layer (11) covers the exposed portion of the structural layer (4); The support member (6) is connected to the weld overlay (11) by welding.

6. The composite plate tower (1) according to claim 5, characterized in that The weld connecting the supporting member (6) and the surfacing layer (11) is a fillet weld.

7. The composite plate tower (1) according to claim 1, characterized in that The corrosion-resistant layer (5) is tightly adhered to the structural layer (4) by explosion welding.

8. The composite plate tower (1) according to claim 1, characterized in that The structural layer (4) is made of carbon steel.

9. The composite plate tower according to claim 1 or 2, characterized in that The corrosion-resistant layer (5) is made of stainless steel.

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