Pipe demister

Abstract

The utility model discloses a pipeline demister, include: three -way valve, three -way valve includes an import and two exports, wherein, the import is always open state, one of two exports is on -off state, another is cut -off state, demisting subassembly, two demisting subassembly are two, and two demisting subassembly respectively one -to -one corresponding and detachably installed on two exports of three -way valve, wherein, demisting subassembly includes: installation cylinder, installation cylinder has the cavity that axially penetrates, and the import end of installation cylinder is detachably installed on the export of three -way valve, silk screen demister, silk screen demister is detachably installed in the cavity of installation cylinder, and with the inner wall of installation cylinder is in close contact. Solved the prior art's existing problem of unable continuous demisting, and silk screen demister maintenance difficult.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment auxiliary parts technology, specifically to a pipeline demister. Background Technology

[0002] Wire mesh demisters are the most widely used type of demister in industry. They can separate particles with a diameter greater than 3-5 μm and are characterized by low pressure drop, low cost, and simple operation. Pipeline wire mesh demisters are a type of wire mesh demister, typically installed on pipelines to remove the liquid phase from gas-liquid mixtures. They are usually used in situations where direct installation inside equipment is not possible, or where installation space is limited and inconvenient for installing a demister.

[0003] Currently, most pipeline demisters are directly installed inside the pipeline. Since exhaust gases may contain small amounts of solid particles or dust, prolonged operation will inevitably clog the demister, affecting its demisting efficiency. Furthermore, because pipeline demisters have a small wire mesh area, they require regular cleaning or rinsing. If the demister becomes clogged or damaged, directly replacing it or disassembling it for cleaning will render the entire system inoperable.

[0004] Therefore, there is a need for a demisting device that can continuously remove fog and is easy to replace or clean the wire mesh demister. Utility Model Content

[0005] Therefore, this utility model provides a pipeline demister to solve the problems of continuous demisting and difficult maintenance of wire mesh demisters in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] This utility model provides a pipeline demister, comprising:

[0008] A three-way valve, comprising one inlet and two outlets, wherein the inlet is normally open, and one of the two outlets is in a conducting state and the other is in a closed state;

[0009] The defogger assembly comprises two components, each corresponding to and detachably mounted on one of the two outlets of the three-way valve.

[0010] The defogging component includes:

[0011] The mounting cylinder has an axially through cavity, and the inlet end of the mounting cylinder is detachably mounted on the outlet of the three-way valve.

[0012] A wire mesh demister, wherein the wire mesh demister is detachably installed in the cavity of the mounting cylinder and fits against the inner wall of the mounting cylinder.

[0013] The pipeline demister provided by this utility model features a three-way valve, with demister components installed at two outlets of the valve. The demister components at the two outlets serve as backups for each other. When one demister component is damaged or the wire mesh demister is clogged and requires cleaning, simply turning the three-way valve shuts off the line requiring cleaning, allowing the demister component on the other line to take over, achieving uninterrupted operation and ensuring the continuous operation of the entire system. Furthermore, this pipeline demister does not need to be installed inside the equipment; it can be directly connected to the pipeline, making replacement and cleaning more convenient and quick. The wire mesh demister is easy to disassemble and clean, solving the problems of continuous demister removal and difficult maintenance of existing wire mesh demisters.

[0014] In some embodiments, the defogging assembly further includes:

[0015] A first axial positioning structure is disposed inside the mounting cylinder and located between the wire mesh demister and the outlet end of the mounting cylinder. The outer end of the wire mesh demister is axially fixed inside the mounting cylinder by the first axial positioning structure.

[0016] In some embodiments, the first axial positioning structure is a retaining ring, which is installed on the inner wall of the mounting cylinder, and the outer end of the wire mesh demister axially abuts against the retaining ring.

[0017] In some embodiments, the defogging assembly further includes:

[0018] The second axial positioning structure is disposed inside the mounting cylinder and located between the wire mesh demister and the inlet end of the mounting cylinder. The inner end of the wire mesh demister is axially fixed inside the mounting cylinder by the second axial positioning structure.

[0019] In some embodiments, the second axial positioning structure includes:

[0020] A pressure frame is installed at the inlet end of the mounting cylinder;

[0021] A pressure arm is installed on the side of the pressure frame facing the wire mesh demister;

[0022] A pressure block is mounted on the pressure arm and axially abuts against the inner end of the wire mesh demister.

[0023] In some embodiments, multiple pressure arms are provided, and each pressure arm is evenly distributed circumferentially on the pressure frame, and each pressure arm is equipped with a pressure block.

[0024] In some embodiments, the pipeline demister further includes:

[0025] A drain channel is provided between the wire mesh demister and the inlet end of the mounting cylinder.

[0026] In some embodiments, the inlet end of the mounting cylinder is provided with an inlet flange, and the cylinder is installed at the outlet of the three-way valve through the inlet flange.

[0027] In some embodiments, the outlet end of the mounting cylinder is provided with an outlet flange.

[0028] In some embodiments, the mounting cylinder is a cylindrical tube. Attached Figure Description

[0029] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0030] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0031] Figure 1 This is a schematic diagram of the pipeline demister provided by this utility model.

[0032] Figure 2 This is a schematic diagram of the second axial positioning structure in the pipeline demister provided by this utility model.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1-Installation cylinder, 2-Wire mesh demister, 3-Pressure frame, 4-Inlet flange, 5-Three-way valve, 6-Gasket;

[0035] 7-Drainage channel, 8-Retaining ring, 9-Outlet flange, 10-Pressure arm, 11-Pressure block. Detailed Implementation

[0036] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0037] In one specific implementation, such as Figures 1-2 As shown, the pipeline demister provided by this utility model includes a three-way valve 5 and demister components. The three-way valve 5 includes one inlet and two outlets, wherein the inlet is normally open, and one of the two outlets is in a conducting state and the other is in a closed state. Through the design of the three-way valve 5, the working state of the two demister components can be flexibly switched to realize alternating use or standby function, thereby improving the reliability and service life of the demister. There are two demister components, which are respectively corresponding to and detachably installed on the two outlets of the three-way valve 5. The demister component includes a mounting cylinder 1 and a wire mesh demister 2. The mounting cylinder 1 has an axially through cavity. The inlet end of the mounting cylinder 1 is detachably installed on the outlet of the three-way valve 5. The wire mesh demister 2 is detachably installed in the cavity of the mounting cylinder 1 and fits against the inner wall of the mounting cylinder 1. The detachable connection between the wire mesh demister 2 and the mounting cylinder 1 facilitates maintenance and replacement.

[0038] The pipeline demister provided by this utility model uses a three-way valve 5 to install demister components on two outlets of the valve. The demister components installed at the two outlets are backups for each other. When one demister component is damaged or the wire mesh demister 2 is clogged and needs cleaning, simply turn the switch of the three-way valve 5 to close the line that needs cleaning. At this time, the demister component on the other line can take over the work, achieving uninterrupted operation and ensuring the continuous operation of the entire system. At the same time, this pipeline demister does not need to be installed inside the equipment and can be directly connected to the pipeline, making replacement and cleaning more convenient and quick. The wire mesh demister 2 is easy to disassemble and clean, solving the problems of non-continuous demistering and difficult maintenance of wire mesh demisters in the prior art.

[0039] Furthermore, the demisting assembly also includes a first axial positioning structure, which is disposed inside the mounting cylinder 1 and located between the wire mesh demister 2 and the outlet end of the mounting cylinder 1. The outer end of the wire mesh demister 2 is axially fixed inside the mounting cylinder 1 by the first axial positioning structure. The first axial positioning structure can effectively prevent the wire mesh demister from axially displacing due to airflow impact during operation, ensuring the stability and reliability of the demisting effect. In this embodiment, the outer end of the wire mesh demister 2 refers to the end facing the outlet of the mounting cylinder.

[0040] Specifically, the first axial positioning structure is a retaining ring 8, which is installed on the inner wall of the mounting cylinder 1, and the outer end of the wire mesh demister 2 axially abuts against the retaining ring 8. The retaining ring 8 has a simple structure, is easy to install, and can effectively achieve outward axial positioning of the wire mesh demister, while also facilitating disassembly and maintenance. The first axial positioning structure is not limited to a retaining ring; it can also be a boss structure or an adjustable retaining ring. For example, by machining a boss on the inner wall of the mounting cylinder 1, the outer end of the wire mesh demister 2 abuts against the boss to achieve axial positioning, or by adjusting the position of the retaining ring to accommodate wire mesh demisters 2 of different thicknesses.

[0041] Furthermore, the demisting assembly also includes a second axial positioning structure, which is disposed within the mounting cylinder 1 and located between the wire mesh demister and the inlet end of the mounting cylinder 1. The inner end of the wire mesh demister is axially fixed within the mounting cylinder 1 by the second axial positioning structure. The second axial positioning structure further enhances the axial stability of the wire mesh demister 2, ensuring that it will not experience inward axial movement due to airflow impact during operation, thereby improving the service life and reliability of the demister. In this embodiment, the inner end of the wire mesh demister 2 refers to the end facing the inlet of the mounting cylinder 1.

[0042] Specifically, the second axial positioning structure includes a pressure frame 3, a pressure arm 10, and a pressure block 11. The pressure frame 3 is installed at the inlet end of the mounting cylinder 1, the pressure arm 10 is installed on the side of the pressure frame 3 facing the wire mesh demister 2, and the pressure block 11 is installed on the pressure arm 10 and axially abuts against the inner end of the wire mesh demister 2. This second axial positioning structure, through the combined design of the pressure frame 3, pressure arm 10, and pressure block 11, can flexibly position the inner end of the wire mesh demister 2 axially, while facilitating disassembly and maintenance, thus improving the operability and reliability of the demister.

[0043] The second axial positioning structure is not limited to the above structure. It can also be a pressure plate or multiple elastic claws. The inner end of the wire mesh demister 2 can be pressed directly against the inlet end of the mounting cylinder by the pressure plate, or the inner end of the wire mesh demister 2 can be fixed in the mounting cylinder by the elastic deformation of the elastic claws.

[0044] Multiple pressure arms 10 are provided, and each pressure arm 10 is evenly distributed circumferentially on the pressure frame 3. Each pressure arm 10 is equipped with a pressure block 11. The multiple pressure arms 10 and pressure blocks 11 are evenly distributed circumferentially, which can apply pressure to the inner end of the wire mesh demister 2 more evenly, ensuring that the inner end of the wire mesh demister 2 is tightly fitted with the inner wall of the mounting cylinder 1, thereby improving the demisting effect and structural stability. The number of pressure arms 10 and pressure blocks 11 can be adjusted according to actual needs, such as increasing or decreasing the number of pressure arms 10 and pressure blocks 11. In this embodiment, four sets of pressure arms 10 and pressure blocks 11 are provided.

[0045] Furthermore, the pipeline demister also includes a drain channel 7, which is located between the wire mesh demister 2 and the inlet end of the mounting cylinder 1. The drain channel 7 can promptly discharge the droplets intercepted by the wire mesh demister 2, preventing droplets from accumulating in the mounting cylinder 1, avoiding affecting the airflow and demisting effect, and reducing secondary entrainment of droplets.

[0046] In some embodiments, the inlet end of the mounting cylinder 1 is provided with an inlet flange 4, and the cylinder is installed at the outlet of the three-way valve 5 through the inlet flange 4. The design of the inlet flange 4 facilitates the connection between the mounting cylinder 1 and the three-way valve 5, ensuring the sealing and reliability of the connection, while also facilitating disassembly and maintenance.

[0047] Similarly, the outlet end of the mounting cylinder 1 is provided with an outlet flange 9. The outlet flange 9 facilitates the connection of the mounting cylinder 1 with other pipes or equipment, ensuring the sealing and reliability of the entire piping system, while also facilitating installation and disassembly.

[0048] In this embodiment, the mounting cylinder 1 can be a cylindrical cylinder. Cylindrical mounting cylinders have a simple structure, are easy to manufacture, can adapt to various working conditions, and have good airflow performance and structural stability. The mounting cylinder 1 is not limited to being a cylindrical cylinder; it can also be a square cylinder or an elliptical cylinder, etc., to adapt to different installation spaces and working conditions.

[0049] To facilitate understanding, the overall technical solution and working process of the pipeline demister provided by this utility model are briefly described below through a specific embodiment.

[0050] Please continue to refer to this. Figure 1 and Figure 2The pipeline demister provided by this utility model includes an installation cylinder 1 with a pipeline cavity, a wire mesh demister 2, a three-way valve 5, a pressure frame 3, a pressure arm 10, a pressure block 11, a retaining ring 8, a drainage channel 7, an inlet flange 4, and an outlet flange 9. The installation cylinder 1 is cylindrical, and the retaining ring 8 is annular, which positions the wire mesh demister 2 at the target position and prevents its axial displacement. The pressure block 3 is clamped between the outlet flange 9 and the outlet flange of the three-way valve 5, and its function is also to fix the wire mesh demister 2 from the other side. A gasket 6 is used to seal the inlet flange 4 and the outlet flange of the three-way valve 5; the gasket material can be selected according to the characteristics of the medium and factors such as pressure and temperature.

[0051] The working process of this pipeline demister is as follows: When a gas-liquid mixture enters through inlet A of the three-way valve 3, if outlet B is open at this time, outlet C is closed. The gas-liquid mixture enters the demister assembly from outlet B. After passing through the wire mesh demister 2 in the demister assembly, the gas and liquid are separated. The separated liquid is discharged through the drain channel 7, and the gas continues to enter the downstream pipeline from the outlet flange 9. At this point, the gas no longer contains liquid droplets or contains only a small amount of liquid droplets, as the wire mesh demister 2 has effectively removed the droplets. When maintenance is required (if outlet B is open at this time), outlet B can be closed, and outlet C will open, allowing the gas and liquid to exit from outlet C. Similarly, the wire mesh demister 2 in the demister assembly at outlet C, outlet B, and outlet C are connected in parallel to a single pipeline. At this time, the demister assembly or wire mesh demister installed on outlet B can be removed for cleaning and maintenance without affecting the normal operation of the entire pipeline, achieving non-stop maintenance and providing positive benefits to the entire system. Because this pipeline demister has a detachable structure, it can be easily removed for replacement or cleaning. After replacement, it can be reinstalled, enabling the equipment to be used repeatedly. Similarly, if outlet C is open, outlet B is closed, and the maintenance procedure is the same as above.

[0052] The three-way valve 5 has one inlet and two outlets, and each outlet is connected to a demister assembly, which are ultimately connected in parallel on a pipeline. The demister assembly has one inlet and one outlet, as well as a drain channel 7, which is located between the wire mesh demister 3 and the inlet flange 4.

[0053] The above specific embodiments further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above are only specific embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made on the basis of the technical solution of this utility model should be included within the scope of protection of this utility model.

Claims

1. A pipeline demister, characterized in that, include: A three-way valve, comprising one inlet and two outlets, wherein the inlet is normally open, and one of the two outlets is in a conducting state and the other is in a closed state; The defogger assembly comprises two components, each corresponding to and detachably mounted on one of the two outlets of the three-way valve. The defogging component includes: The mounting cylinder has an axially through cavity, and the inlet end of the mounting cylinder is detachably mounted on the outlet of the three-way valve. A wire mesh demister, wherein the wire mesh demister is detachably installed in the cavity of the mounting cylinder and fits against the inner wall of the mounting cylinder.

2. The pipeline demister according to claim 1, characterized in that, The defogging component also includes: A first axial positioning structure is disposed inside the mounting cylinder and located between the wire mesh demister and the outlet end of the mounting cylinder. The outer end of the wire mesh demister is axially fixed inside the mounting cylinder by the first axial positioning structure.

3. The pipeline demister according to claim 2, characterized in that, The first axial positioning structure is a retaining ring, which is installed on the inner wall of the mounting cylinder, and the outer end of the wire mesh demister axially abuts against the retaining ring.

4. The pipeline demister according to claim 1, characterized in that, The defogging component also includes: The second axial positioning structure is disposed inside the mounting cylinder and located between the wire mesh demister and the inlet end of the mounting cylinder. The inner end of the wire mesh demister is axially fixed inside the mounting cylinder by the second axial positioning structure.

5. The pipeline demister according to claim 4, characterized in that, The second axial positioning structure includes: A pressure frame is installed at the inlet end of the mounting cylinder; A pressure arm is installed on the side of the pressure frame facing the wire mesh demister; A pressure block is mounted on the pressure arm and axially abuts against the inner end of the wire mesh demister.

6. The pipeline demister according to claim 5, characterized in that, The pressure arms are provided in multiple ways, and each pressure arm is evenly distributed on the pressure frame along the circumference. Each pressure arm is equipped with a pressure block.

7. The pipeline demister according to claim 4, characterized in that, Also includes: A drain channel is provided between the wire mesh demister and the inlet end of the mounting cylinder.

8. The pipeline demister according to any one of claims 1-7, characterized in that, The inlet end of the mounting cylinder is provided with an inlet flange, and is installed at the outlet of the three-way valve through the inlet flange.

9. The pipeline demister according to any one of claims 1-7, characterized in that, The outlet end of the mounting cylinder is provided with an outlet flange.

10. The pipeline demister according to any one of claims 1-7, characterized in that, The mounting cylinder is a cylindrical shape.

Images