A staggered hole type large flux and high efficiency wire mesh demister
By adopting multi-layer misalignment and elliptical runway-shaped bracket design in the wire mesh defoamer, the problem of difficulty in achieving efficient foam removal and large flow throughput at the same time in the existing technology is solved, and more efficient foam removal and larger flow throughput are achieved, ensuring the normal operation of the equipment and the extension of service life.
Patent Information
- Application Number
- CN202323465344.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-19
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2033-12-19
AI Technical Summary
Existing wire mesh defoamers are difficult to achieve efficient foam removal and large flow throughput at the same time, resulting in abnormal operation of the equipment or shortened service life.
A wire mesh defoamer with multiple layers of misaligned holes is used. The mesh holes of adjacent wire mesh are staggered, combined with the elliptical runway-shaped bracket design, which improves the gas phase flow and foam removal efficiency.
While maintaining a large mesh to increase the gas phase flow, it improves the foam removal efficiency, ensures the normal operation of the production system and extends the service life of the equipment.
Smart Images
Figure CN222723671U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of chemical equipment and relates to a gas-liquid separation device, in particular to a staggered hole type large-flux high-efficiency wire mesh demister. Background Art
[0002] The industrial isooctane production system adopts the effluent refrigeration process. Because its reaction unit needs to maintain a low reaction temperature, a compression refrigeration unit is set up. Its principle is to use the heat absorption and release phenomenon of the phase change process of the isobutane refrigerant with a very low boiling point. With the help of the suction compression of the compressor, the heat release condensation of the condenser cooler, the throttling and pressure reduction of the throttle valve, and the heat absorption and vaporization of the flash tank, the temperature of the object to be cooled can be reduced. When the isobutane refrigerant changes from liquid phase to gas phase, the gas phase will entrain droplets, affecting the normal operation of the equipment. Therefore, a wire mesh demister is required at the outlet of the flash tank to remove the mist in the gas.
[0003] At present, conventional wire mesh demisters are mainly composed of wire mesh and a supporting device for fixing the wire mesh, which can effectively remove mist of 3 to 5 μm. Based on the requirements of defoaming efficiency and gas phase flow rate, the current aperture of the wire mesh demister is difficult to achieve both high-efficiency defoaming and large flow rate. The larger the aperture of the wire mesh, the larger the gas phase flow rate, but the low defoaming efficiency will cause damage to the equipment and reduce the service life of the equipment; the smaller the aperture of the wire mesh, the higher the defoaming efficiency, but the small gas phase flow rate, which will affect the normal operation of subsequent equipment, such as causing insufficient gas intake of the refrigeration compressor, etc., affecting production efficiency. Utility Model Content
[0004] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a staggered hole type large flux and high efficiency wire mesh demister to solve the problem that the existing wire mesh demister is difficult to achieve the technical effect of both high efficiency defoaming and large flow rate. The use of wire mesh with multiple layers of staggered holes can effectively achieve the purpose of high efficiency defoaming and large flow rate.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A staggered hole type large flux and high efficiency wire mesh demister comprises several sealing plates, several wire meshes and a bracket for installing the wire meshes. The sealing plates are mounted around and on the inner wall of the flash tank gas outlet to form a flow port for installing the bracket. The wire meshes are detachably arranged on the bracket at intervals from top to bottom. The adjacent wire meshes are staggered, i.e. the meshes of the upper and lower wire meshes are staggered with each other. The bracket is detachably arranged in the flow port. Thus, while adopting a larger mesh to increase the gas phase flow rate, the defoaming efficiency can be improved, thereby ensuring the normal operation of the production system and not damaging the equipment.
[0007] Furthermore, the bracket is designed as an elliptical runway-shaped structure, and the flow port formed after the sealing plate is installed is in the shape of an elliptical runway; compared with the traditional circular wire mesh demister, the elliptical runway-type wire mesh demister occupies a small gas phase space, can provide a large contact area, provides the largest liquid volatilization space in a limited gas phase space, can reduce the volume of the flash tank, and is particularly suitable for modification in existing flash tank equipment.
[0008] Furthermore, the staggered holes of the wire mesh are arranged in a staggered manner from top to bottom or from bottom to top, in a sequential staggered arrangement along the diagonal direction of the mesh holes, and the staggered distance should meet the defoaming requirements.
[0009] Furthermore, there are four ways of staggered arrangement, namely, staggered from the upper left to the lower diagonal, staggered from the lower left to the upper diagonal, staggered from the upper right to the lower diagonal, and staggered from the lower right to the upper diagonal.
[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0011] 1. The utility model adopts the staggered hole arrangement of adjacent wire meshes, that is, the mesh holes of the upper and lower wire meshes are staggered with each other. In this way, while adopting larger mesh holes to increase the gas phase flow rate, the defoaming efficiency can be improved, ensuring the normal operation of the production system and not damaging the equipment. It solves the problem that the existing wire mesh demister is difficult to achieve the technical effect of both efficient defoaming and large flow rate. At the same time, it has the characteristics of simple structure, easy use, good effect, etc.
[0012] 2. The utility model designs the wire mesh demister into an elliptical track shape. Compared with the traditional circular wire mesh demister, the elliptical track type wire mesh demister occupies a small gas phase space, can provide a large contact area, provides the largest liquid volatilization space in the limited gas phase space, can reduce the volume of the flash tank, and is particularly suitable for modification in the existing flash tank equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the connection structure between the wire mesh and the bracket of the utility model;
[0014] Figure 2 This is an effect diagram of the staggered arrangement state of the wire mesh holes of the utility model;
[0015] Figure 3 This is a schematic diagram of the utility model in use state.
[0016] In the figure: 1. bracket; 2. wire mesh; 3. mesh; 4. sealing plate; 5. flow port; 6. air outlet. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.
[0018] like Figure 1-3 As shown, a staggered hole type large flux high efficiency wire mesh demister comprises several sealing plates 4, several wire meshes 2 and a bracket 1 for mounting the wire meshes, wherein the sealing plates 4 are mounted around and mounted on the inner wall of the flash tank outlet 6 to form a flow opening 5 (the shape of the flow opening should match the shape of the bracket, such as all are elliptical runway shaped, all are circular, or all are square), and is used to mount the bracket, wherein the bracket 1 is detachably arranged in the flow opening 5, and the bracket 1 is designed as an elliptical runway shaped structure, then the flow opening 5 formed after the sealing plates 4 are installed is also elliptical runway shaped, and the wire meshes 2 are mounted from top to bottom. The meshes 2 are detachably arranged at intervals on the bracket 1 (the number of meshes should be determined according to the aperture of the meshes so that the mist can be effectively removed); the adjacent meshes 2 are staggered, that is, the meshes 3 of the upper and lower meshes are staggered with each other, and the meshes 2 are staggered from top to bottom or from bottom to top, and are sequentially staggered along the diagonal direction of the meshes 3, and the staggered distance should meet the defoaming requirements; there are four ways of staggered arrangement, namely, staggered from the upper left to the lower diagonal, staggered from the lower left to the upper diagonal, staggered from the upper right to the lower diagonal, and staggered from the lower right to the upper diagonal, such as Figure 2 An arrangement of staggered holes of adjacent screens 2 is shown, in which the screens 2 are staggered from bottom to top (i.e., the bottom screen is staggered layer by layer from bottom to top) along the diagonal upper left to bottom; in this way, while using larger mesh holes to increase the gas flow rate, the defoaming efficiency can be improved, ensuring the normal operation of the production system and not damaging the equipment.
[0019] The working principle and use process of the utility model are as follows: when the gas carrying mist rises through the wire mesh 2 at a certain speed, the mist will be attached to the surface of the filaments under the blocking effect of the filaments of the first layer of wire mesh 2 (the mist collides with the wire mesh filaments), and the rest of the gas carrying mist will continue to rise. Since the second layer of wire mesh is arranged in a staggered hole manner (the multiple wire meshes on the bracket are sequentially staggered along the diagonal direction of the mesh holes) and the inertia of the rising mist, part of the mist that passes through the first layer of wire mesh but does not adhere to the filaments (does not collide with the filaments) will collide with the filaments of the second layer of wire mesh and be attached to the surface of the filaments. By analogy, the mist that does not collide with the wire mesh filaments and continues to rise will be blocked by the filaments of the upper layer of staggered wire mesh and will be removed. After the mist on the surface of the filaments forms larger droplets, it separates and falls from the filaments. In this way, while using larger mesh holes to increase the gas phase flow rate, the defoaming efficiency can be improved, ensuring the normal operation of the production system and not damaging the equipment, solving the problem that the existing wire mesh demister is difficult to achieve the technical effects of both efficient defoaming and large flow rate.
[0020] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0021] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A staggered hole type large flux and high efficiency wire mesh demister, characterized by: It includes several sealing plates, several wire meshes and brackets for installing the wire meshes. The sealing plates are installed around the inner wall of the flash tank outlet to form a flow port. The wire meshes are detachably arranged on the brackets at intervals from top to bottom. Adjacent wire meshes are arranged with staggered holes. The bracket is detachably arranged in the flow port.
2. The staggered hole type large flux and high efficiency wire mesh demister according to claim 1 is characterized in that: The support is designed as an elliptical track-shaped structure, and the flow opening formed after the sealing plate is installed is in the shape of an elliptical track.
3. The staggered hole type high flux and high efficiency wire mesh demister according to claim 1, characterized in that: The staggered holes of the wire mesh are arranged in a staggered manner from top to bottom or from bottom to top, and are arranged in sequence along the diagonal direction of the mesh holes.
4. The staggered hole type large flux and high efficiency wire mesh demister according to claim 3 is characterized in that: There are four ways of staggered arrangement, namely, staggered from the upper left to the lower diagonal, staggered from the lower left to the upper diagonal, staggered from the upper right to the lower diagonal, and staggered from the lower right to the upper diagonal.