Steel-metal composite tower with thermoplastic plastic lining

Abstract

The utility model discloses a steel-metal composite tower with a thermoplastic plastic lining, belongs to the technical field of composite towers, and aims to provide the steel-metal composite tower with the thermoplastic plastic lining to solve the problem that the service life of a tower body is short due to poor corrosion resistance of an existing absorption tower. A demister is mounted on one side, close to the top of the tower body, in the tower body; two groups of spraying mechanisms are arranged at intervals in the tower body below the demister along the height direction of the tower body; the top of the tower body is communicated with an air outlet pipe; the bottom of the side wall of the tower body is communicated with a liquid discharge pipe; the tower body comprises a thermoplastic resin lining layer, an interface layer, a metal three-dimensional net-shaped structure layer and a metal reinforcing layer which are sequentially arranged from inside to outside, the metal three-dimensional net-shaped structure layer is welded to the metal reinforcing layer, and the thermoplastic resin lining layer is bonded with the metal three-dimensional net-shaped structure layer and the metal reinforcing layer through the interface layer. The utility model is suitable for the steel-metal composite tower with the thermoplastic plastic lining.

Description

Technical Field

[0001] The utility model belongs to the technical field of composite towers, and in particular relates to a thermoplastic plastic lined steel metal composite tower. Background Art

[0002] Absorption tower is a device for realizing absorption operation. It is divided into three categories according to the contact form between gas and liquid. The first category is plate tower, bubbling absorption tower, stirring bubbling absorption tower, where gas is dispersed in the liquid phase in the form of bubbles; the second category is ejector, venturi, spray tower, where liquid is dispersed in the gas phase in the form of droplets; the third category is packed absorption tower and falling film absorption tower, where liquid contacts the gas phase in the form of film movement.

[0003] In industrial production, it is necessary to absorb and purify corrosive gases. When the absorption tower is handling corrosive gases, the inside of the tower is susceptible to gas corrosion, and the waste liquid generated by the absorbed gas will also corrode the tower body. However, the existing absorption tower has poor corrosion resistance, which makes the tower body have a short service life and cannot meet long-term operation. Utility Model Content

[0004] The utility model aims to provide a thermoplastic-lined steel-metal composite tower to solve the problem that the existing absorption tower has poor corrosion resistance and causes a short service life of the tower body.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A thermoplastic plastic lined steel-metal composite tower comprises a tower body, a demister is installed on one side of the tower body near the top of the tower body, two groups of spray mechanisms are arranged in the tower body below the demister and spaced apart along the height direction of the tower body, an air outlet pipe is connected to the top of the tower body, a liquid discharge pipe is connected to the bottom of the tower body side wall, an air inlet pipe is connected to the tower body side wall, the tower body comprises a thermoplastic resin lining layer, an interface layer, a metal three-dimensional mesh structure layer, and a metal reinforcement layer which are arranged in sequence from the inside to the outside, the metal three-dimensional mesh structure layer is welded to the metal reinforcement layer, and the thermoplastic resin lining layer is bonded to the metal three-dimensional mesh structure layer and the metal reinforcement layer through the interface layer.

[0007] Furthermore, the spray mechanism comprises a liquid inlet branch pipe extending from the outside of the tower body into the tower body, the liquid inlet branch pipe is connected to a plurality of absorption liquid spray heads, and the liquid inlet branch pipe is connected to a liquid inlet main pipe.

[0008] Furthermore, a booster pump is installed on the liquid inlet main pipe.

[0009] Furthermore, a flow control valve is also provided on the liquid discharge pipe.

[0010] Furthermore, the thickness of the metal reinforcement layer is 8 mm, the thickness of the interface layer is 0.2 mm, and the thickness of the thermoplastic resin lining layer is 3 mm.

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0012] 1. The utility model comprises a tower body, wherein a demister is installed on one side of the tower body near the top of the tower body, wherein two groups of spray mechanisms are arranged at intervals along the height direction of the tower body below the demister, wherein the top of the tower body is connected with an air outlet pipe, the bottom of the tower body side wall is connected with a liquid discharge pipe, and the side wall of the tower body is connected with an air inlet pipe, wherein the tower body comprises a thermoplastic resin lining layer, an interface layer, a metal three-dimensional mesh structure layer, and a metal reinforcement layer which are arranged in sequence from the inside to the outside, wherein the metal three-dimensional mesh structure layer is welded to the metal reinforcement layer, and wherein the thermoplastic resin lining layer is bonded to the metal three-dimensional mesh structure layer and the metal reinforcement layer through the interface layer.

[0013] Through this arrangement, corrosive gas enters the tower body through the air inlet pipe, and two groups of spraying mechanisms spray absorption liquid to purify and absorb the corrosive gas. The gas after purification and absorption is discharged from the air outlet pipe. The demister is used to ensure that the discharged gas does not carry a large amount of absorption liquid, and the waste liquid generated by purification and absorption is discharged through the drain pipe. The tower body is divided into four layers. The metal reinforcement layer ensures the strength of the tower structure and provides support for the entire composite tower; the interface layer is used to connect the thermoplastic resin lining layer and the metal reinforcement layer to ensure the continuity of the tower structure; the metal three-dimensional mesh structure layer can effectively strengthen the adhesion between the thermoplastic resin lining layer and the metal reinforcement layer; the thermoplastic resin lining layer has excellent anti-corrosion performance and light weight, which ensures the service life of the tower body and effectively solves the problem of poor corrosion resistance of the existing absorption tower, resulting in a short service life of the tower body.

[0014] 2. In the utility model, the spray mechanism includes a liquid inlet branch pipe extending from the outside of the tower body into the tower body, the liquid inlet branch pipe is connected to a plurality of absorption liquid spray heads, and the liquid inlet branch pipe is connected to a liquid inlet main pipe. Through this arrangement, the absorption liquid enters the liquid inlet branch pipe through the liquid inlet main pipe and is sprayed out from a plurality of absorption liquid spray heads, ensuring that the absorption liquid is evenly sprayed in the tower body, ensuring that the corrosive gas is fully in contact with the absorption liquid, and improving the absorption effect of the corrosive gas.

[0015] 3. In the utility model, a booster pump is installed on the liquid inlet main pipe. Through this arrangement, the absorption liquid in the liquid inlet main pipe can be pressurized to ensure that the absorption liquid has a sufficient flow rate when it is sprayed from the absorption liquid spray head, so that the absorption liquid quickly fills the tower body.

[0016] 4. In the present invention, a flow control valve is also provided on the drainage pipe. This arrangement facilitates the reasonable control of the drainage speed of the drainage pipe according to the amount of waste liquid generated by purification and absorption, ensuring that the waste liquid does not accumulate excessively in the tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present utility model and should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work, including:

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a schematic cross-sectional view of the tower body of the utility model;

[0020] Markings in the figure: 1-tower body, 2-demister, 3-air outlet pipe, 4-liquid discharge pipe, 5-air inlet pipe, 6-liquid inlet branch pipe, 7-absorption liquid spray head, 8-liquid inlet main pipe, 9-boosting pump, 10-flow control valve, 11-thermoplastic resin lining layer, 12-interface layer, 13-metal reinforcement layer, 14-metal three-dimensional mesh structure layer. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] It should be noted that reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0024] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use. They are only simplified descriptions for the convenience of describing the present utility model, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance.

[0025] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0026] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] A thermoplastic plastic lined steel-metal composite tower comprises a tower body, a demister is installed on one side of the tower body near the top of the tower body, two groups of spray mechanisms are arranged in the tower body below the demister and spaced apart along the height direction of the tower body, an air outlet pipe is connected to the top of the tower body, a liquid discharge pipe is connected to the bottom of the tower body side wall, an air inlet pipe is connected to the tower body side wall, the tower body comprises a thermoplastic resin lining layer, an interface layer, a metal three-dimensional mesh structure layer, and a metal reinforcement layer which are arranged in sequence from the inside to the outside, the metal three-dimensional mesh structure layer is welded to the metal reinforcement layer, and the thermoplastic resin lining layer is bonded to the metal three-dimensional mesh structure layer and the metal reinforcement layer through the interface layer.

[0028] Furthermore, the spray mechanism comprises a liquid inlet branch pipe extending from the outside of the tower body into the tower body, the liquid inlet branch pipe is connected to a plurality of absorption liquid spray heads, and the liquid inlet branch pipe is connected to a liquid inlet main pipe.

[0029] Furthermore, a booster pump is installed on the liquid inlet main pipe.

[0030] Furthermore, a flow control valve is also provided on the liquid discharge pipe.

[0031] Furthermore, the thickness of the metal reinforcement layer is 8 mm, the thickness of the interface layer is 0.2 mm, and the thickness of the thermoplastic resin lining layer is 3 mm.

[0032] During the implementation of the utility model, corrosive gas enters the tower body through the air inlet pipe, two groups of spraying mechanisms spray absorption liquid to purify and absorb the corrosive gas, and the gas after purification and absorption is discharged from the air outlet pipe. The demister is used to ensure that the discharged gas does not carry a large amount of absorption liquid, and the waste liquid generated by purification and absorption is discharged through the discharge pipe. The tower body is divided into four layers. The metal reinforcement layer ensures the strength of the tower structure and provides support for the entire composite tower; the interface layer is used to connect the thermoplastic resin lining layer and the metal reinforcement layer to ensure the continuity of the tower structure; the metal three-dimensional mesh structure layer can effectively strengthen the bonding force between the thermoplastic resin lining layer and the metal reinforcement layer; the thermoplastic resin lining layer has excellent anti-corrosion performance and light weight, which ensures the service life of the tower body and effectively solves the problem of poor corrosion resistance of the existing absorption tower, resulting in a short service life of the tower body.

[0033] Specifically, the spray mechanism includes a liquid inlet branch pipe extending from the outside of the tower body into the tower body, the liquid inlet branch pipe is connected to a plurality of absorption liquid spray heads, and the liquid inlet branch pipe is connected to a liquid inlet main pipe. Through this arrangement, the absorption liquid enters the liquid inlet branch pipe through the liquid inlet main pipe and is sprayed out from a plurality of absorption liquid spray heads, ensuring that the absorption liquid is evenly sprayed in the tower body, ensuring that the corrosive gas is fully in contact with the absorption liquid, and improving the absorption effect of the corrosive gas.

[0034] Preferably, a booster pump is installed on the liquid inlet main pipe. Through this arrangement, the absorption liquid in the liquid inlet main pipe can be pressurized to ensure that the absorption liquid has a sufficient flow rate when sprayed from the absorption liquid spray head, so that the absorption liquid quickly fills the tower body.

[0035] Preferably, the drain pipe is also provided with a flow control valve, which facilitates reasonable control of the drain speed of the drain pipe according to the amount of waste liquid generated by purification and absorption, and ensures that the waste liquid does not accumulate excessively in the tower.

[0036] Specifically, the thickness of the metal reinforcement layer is 8 mm, the thickness of the interface layer is 0.2 mm, and the thickness of the thermoplastic resin lining layer is 3 mm.

[0037] Example 1

[0038] A thermoplastic plastic lined steel-metal composite tower comprises a tower body, a demister is installed on one side of the tower body near the top of the tower body, two groups of spray mechanisms are arranged in the tower body below the demister and spaced apart along the height direction of the tower body, an air outlet pipe is connected to the top of the tower body, a liquid discharge pipe is connected to the bottom of the tower body side wall, an air inlet pipe is connected to the tower body side wall, the tower body comprises a thermoplastic resin lining layer, an interface layer, a metal three-dimensional mesh structure layer, and a metal reinforcement layer which are arranged in sequence from the inside to the outside, the metal three-dimensional mesh structure layer is welded to the metal reinforcement layer, and the thermoplastic resin lining layer is bonded to the metal three-dimensional mesh structure layer and the metal reinforcement layer through the interface layer.

[0039] Through this arrangement, corrosive gas enters the tower body through the air inlet pipe, and two groups of spraying mechanisms spray absorption liquid to purify and absorb the corrosive gas. The gas after purification and absorption is discharged from the air outlet pipe. The demister is used to ensure that the discharged gas does not carry a large amount of absorption liquid, and the waste liquid generated by purification and absorption is discharged through the drain pipe. The tower body is divided into four layers. The metal reinforcement layer ensures the strength of the tower structure and provides support for the entire composite tower; the interface layer is used to connect the thermoplastic resin lining layer and the metal reinforcement layer to ensure the continuity of the tower structure; the metal three-dimensional mesh structure layer can effectively strengthen the adhesion between the thermoplastic resin lining layer and the metal reinforcement layer; the thermoplastic resin lining layer has excellent anti-corrosion performance and light weight, which ensures the service life of the tower body and effectively solves the problem of poor corrosion resistance of the existing absorption tower, resulting in a short service life of the tower body.

[0040] Example 2

[0041] On the basis of Example 1, the spray mechanism includes a liquid inlet branch pipe extending from the outside of the tower body into the tower body, the liquid inlet branch pipe is connected to a plurality of absorption liquid spray heads, and the liquid inlet branch pipe is connected to a liquid inlet main pipe. With this arrangement, the absorption liquid enters the liquid inlet branch pipe through the liquid inlet main pipe and is sprayed out from a plurality of absorption liquid spray heads, ensuring that the absorption liquid is evenly sprayed in the tower body, ensuring that the corrosive gas is fully in contact with the absorption liquid, and improving the absorption effect of the corrosive gas.

[0042] Example 3

[0043] Based on the above embodiment, a booster pump is installed on the liquid inlet main pipe. Through this arrangement, the absorption liquid in the liquid inlet main pipe can be pressurized to ensure that the absorption liquid has a sufficient flow rate when it is sprayed from the absorption liquid spray head, so that the absorption liquid quickly fills the tower body.

[0044] Example 4

[0045] Based on the above embodiment, a flow control valve is further provided on the liquid discharge pipe, which facilitates reasonable control of the liquid discharge speed of the liquid discharge pipe according to the amount of waste liquid generated by purification and absorption, and ensures that the waste liquid does not accumulate excessively in the tower.

[0046] Example 5

[0047] On the basis of the above embodiment, the thickness of the metal reinforcement layer is 8 mm, the thickness of the interface layer is 0.2 mm, and the thickness of the thermoplastic resin lining layer is 3 mm.

[0048] The above is the embodiment of the utility model. The above is the preferred embodiment of the utility model. If the preferred implementation methods in each preferred embodiment are not obviously self-contradictory or based on a preferred implementation method, each preferred implementation method can be arbitrarily superimposed and used in combination. The embodiments and specific parameters in the embodiments are only for the purpose of clearly describing the verification process of the utility model, and are not used to limit the patent protection scope of the utility model. The patent protection scope of the utility model is still subject to its claims. All equivalent structural changes made by using the description and drawings of the utility model should be included in the protection scope of the utility model.

Claims

1. A thermoplastic lined steel metal composite tower, characterized in that: The invention comprises a tower body (1), wherein a demister (2) is installed on one side of the tower body (1) near the top of the tower body (1), wherein two groups of spray mechanisms are arranged in the tower body (1) below the demister (2) and spaced apart along the height direction of the tower body (1), wherein the top of the tower body (1) is connected to an air outlet pipe (3), the bottom of the side wall of the tower body (1) is connected to a liquid discharge pipe (4), and the side wall of the tower body (1) is connected to an air inlet pipe (5), wherein the tower body (1) comprises a thermoplastic resin lining layer (11), an interface layer (12), a metal three-dimensional mesh structure layer (14), and a metal reinforcement layer (13) which are arranged in sequence from the inside to the outside, wherein the metal three-dimensional mesh structure layer (14) is welded to the metal reinforcement layer (13), and wherein the thermoplastic resin lining layer (11) is bonded to the metal three-dimensional mesh structure layer (14) and the metal reinforcement layer (13) via the interface layer (12).

2. A thermoplastic lined steel metal composite tower according to claim 1, characterized in that: The spray mechanism comprises a liquid inlet branch pipe (6) extending from the outside of the tower body (1) into the tower body (1), the liquid inlet branch pipe (6) being connected to a plurality of absorption liquid spray heads (7), and the liquid inlet branch pipe (6) being connected to a liquid inlet main pipe (8).

3. A thermoplastic lined steel metal composite tower according to claim 2, characterized in that: A booster pump (9) is installed on the liquid inlet main pipe (8).

4. A thermoplastic lined steel metal composite tower according to claim 1, characterized in that: The liquid discharge pipe (4) is also provided with a flow control valve (10).

5. A thermoplastic lined steel metal composite tower according to claim 1, characterized in that: The thickness of the metal reinforcement layer (13) is 8 mm, the thickness of the interface layer (12) is 0.2 mm, and the thickness of the thermoplastic resin lining layer (11) is 3 mm.

Images