Flow guide structure of anti-crystallization exhaust valve

By designing a flow-guiding structure for the anti-crystallization exhaust valve, the problems of easy clogging and valve core damage in chemical processes have been solved, achieving effective filtration of chemical gases and simple filter maintenance, thus improving the operational stability of the equipment.

CN121082016AInactive Publication Date: 2025-12-09ANHUI LONGZE IND CO LTD
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Patent Information

Application Number
CN202511138346.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-14
Publication Date
2025-12-09
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing exhaust valves are prone to blockage by crystals in chemical processes, and the valve core is easily damaged under high pressure, making maintenance difficult.

Method used

A flow guide structure for an anti-crystallization exhaust valve was designed, comprising components such as a flow guide shell, a movable top cover, a telescopic cylinder, and a filter screen. The filter screen can be quickly installed and removed through a rotation and telescopic mechanism, thus preventing the deposition of crystals on the valve surface.

Benefits of technology

It achieves effective filtration of chemical gases, avoids crystallization on the valve surface, simplifies the cleaning and replacement process of the filter screen, and improves the operational reliability of the equipment.

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Abstract

The flow guide structure comprises a flow guide shell, an air inlet pipeline is fixedly connected to the surface of the bottom of the flow guide shell, the exhaust valve is fixedly connected to the surface of the inclined lower portion of the other side of the flow guide shell, a movable top cover is installed on the surface of the top end of the flow guide shell, and a telescopic air cylinder is installed on the surface of the top end of the movable top cover. A supporting frame is installed on the surface of the lower end of the flow guide shell, an inner buckling block is arranged on the surface of the upper end of the inner wall of the flow guide shell, an anti-crystallization tank is arranged in the flow guide shell, a telescopic air cylinder is connected with a telescopic rod, and a hollow cover plate forms a telescopic structure at the top end of a liquid storage tank through the telescopic air cylinder. And the hollowed-out cover plate filters liquid in the liquid storage tank through a filter screen on the surface of the hollowed-out cover plate, so that the problems that according to an existing exhaust valve, a valve element is difficult to replace and maintain when a fault occurs in the valve element, and when the pressure in the valve body is large, the valve element is prone to being damaged by pressure impact only through the valve element are solved.
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Description

Technical Field

[0001] This invention mainly relates to the field of exhaust valves, and specifically to a flow guiding structure for an anti-crystallization exhaust valve. Background Technology

[0002] Chemical processes often require the mixing of chemical gases. These gas mixtures can be reused, but after prolonged use, the chemical mixtures involved in the reaction will contain a large amount of crystals or other impurities from the pipelines, which can easily cause blockages and affect the normal operation of the equipment. This necessitates a flow guiding structure for the anti-crystallization exhaust valve.

[0003] During the operation of specific embodiments, the inventors discovered the following defects: Existing exhaust valves are difficult to replace or repair when the valve core malfunctions. Furthermore, when the pressure inside the valve body is high, simply passing through the valve core can easily cause it to be damaged by the pressure. Summary of the Invention

[0004] 1. The technical problem that the invention aims to solve: The present invention provides a flow guiding structure for an anti-crystallization exhaust valve to solve the technical problems existing in the background art.

[0005] 2. Technical Solution: To achieve the above objectives, the technical solution provided by the present invention is as follows: a flow guiding structure for an anti-crystallization exhaust valve, comprising a flow guiding shell, an air inlet pipe fixedly connected to the bottom surface, an exhaust valve fixedly connected to the lower oblique surface of the other side of the flow guiding shell, a movable top cover installed on the top surface of the flow guiding shell, a telescopic cylinder installed on the top surface of the movable top cover, a support frame installed on the lower surface of the flow guiding shell, an inner buckle block provided on the upper surface of the inner wall of the flow guiding shell, and an anti-crystallization tank provided inside the flow guiding shell.

[0006] Furthermore, the top surface of the air intake pipe is connected to the bottom of the anti-crystallization tank, and the air intake pipe forms a through structure with the inside of the filter housing through the anti-crystallization tank.

[0007] Furthermore, the movable top cover includes an outer top cover, and the lower surface of the outer top cover is provided with an "L"-shaped hook. There are two "L"-shaped hooks and a telescopic rod is provided between them. The bottom surface of the telescopic rod is provided with a perforated cover plate, the surface of the perforated cover plate is provided with a filter screen, and a sealing gasket is provided around the lower end of the perforated cover plate.

[0008] Furthermore, the telescopic cylinder is connected to the telescopic rod, and the perforated cover plate forms a telescopic structure at the top of the liquid storage tank through the telescopic cylinder, and the perforated cover plate filters the liquid inside the liquid storage tank through the filter screen on its surface.

[0009] Furthermore, the telescopic rod at the upper end of the filter screen and the filter screen together form a lifting mechanism, and the perforated cover plate and the filter screen together form a closed structure on the surface of the anti-crystallization tank.

[0010] Furthermore, the outer top cover is movably connected to the top of the filter housing and forms a rotating structure, and the "L"-shaped hook is connected to the inner buckle block by rotation.

[0011] Furthermore, the filter housing is supported on the top of the liquid storage tank by extending a telescopic rod, so that the "L"-shaped hook is pressed against the surface of the inner buckle block, and the filter housing is installed on the top surface of the filter housing.

[0012] 3. Beneficial effects: This invention is rationally designed. During filtration, the movable top cover is installed on the top of the filter housing. By rotating the outer top cover of the movable top cover, the "L"-shaped hook and the inner buckle block are engaged and connected. Then, the telescopic cylinder is activated, causing the telescopic rod to extend downwards and install the perforated cover plate on the top of the storage tank. The chemical gas inside the storage tank is filtered through the filter screen on the surface of the perforated cover plate. At the same time, the telescopic rod continues to extend, causing the "L"-shaped hook to press against the lower surface of the inner buckle block, thus completing the installation. During this process, particles in the gas are adsorbed onto the surface of the particle screen through the filter screen, preventing crystallization on the surface of the exhaust valve.

[0013] When the filter needs to be cleaned or replaced, the telescopic cylinder drives the telescopic rod to retract, which moves the perforated cover plate upward. Rotating the outer top cover releases the engagement between the "L"-shaped hook and the inner buckle, allowing the outer top cover to be removed. This allows the perforated cover plate and filter to be removed at the same time, avoiding the need to disassemble the outer casing one by one. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the main valve body of the present invention; Figure 3 This is a side sectional view of the main valve body of the present invention; Figure 4 This is a three-dimensional schematic diagram of the inner valve body of the present invention.

[0015] Figure label: 1. Filter housing; 2. Feed pipe; 3. Discharge pipe; 4. Movable top cover; 401. Outer top cover; 402. "L" shaped hook; 403. Telescopic rod; 404. Hollowed-out cover plate; 405. Filter screen; 406. Sealing gasket; 5. Telescopic cylinder; 6. Support frame; 7. Inner buckle block; 8. Liquid storage tank. Detailed Implementation

[0016] To facilitate understanding of the present invention, a more complete description of the invention will be given below with reference to the accompanying drawings, which illustrate several embodiments of the invention. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the invention will be more thorough and complete.

[0017] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "page," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0018] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0019] In this invention, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," and "equipped" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances. Example

[0020] See attached document Figure 1-4 , The system includes a flow guide shell 1, an air intake pipe 2 fixedly connected to its bottom surface, an exhaust valve 3 fixedly connected to the lower side of the flow guide shell 1, a movable top cover 4 mounted on the top surface of the flow guide shell 1, a telescopic cylinder 5 mounted on the top surface of the movable top cover 4, a support frame 6 mounted on the lower surface of the flow guide shell 1, an inner buckle block 7 provided on the upper surface of the inner wall of the flow guide shell 1, an anti-crystallization tank 8 provided inside the flow guide shell 1, and the top surface of the air intake pipe 2 connected to the bottom of the anti-crystallization tank 8. The air intake pipe 2 forms a through structure with the interior of the filter shell 1 through the anti-crystallization tank 8. This technical solution achieves the purpose of adsorbing particles in the gas onto the surface of the filter screen through the movable top cover 4, thus avoiding crystallization on the surface of the exhaust valve.

[0021] The movable top cover 4 includes an outer top cover 401. Two "L"-shaped hooks 402 are provided on the lower surface of the outer top cover 401, with a telescopic rod 403 between them. A perforated cover plate 404 is provided on the bottom surface of the telescopic rod 403. A filter screen 405 is provided on the surface of the perforated cover plate 404. A sealing gasket 406 is provided around the lower perimeter of the perforated cover plate 404. The telescopic cylinder 5 is connected to the telescopic rod 403, and the perforated cover plate 404 forms a telescopic structure at the top of the liquid storage tank 8 via the telescopic cylinder 5. The filter screen 405 on the surface of the perforated cover plate 404 filters the liquid inside the liquid storage tank 8. The filter screen 405 is equipped with a lifting mechanism consisting of an upper telescopic rod 403 and the filter screen 405. The perforated cover plate 404 and the filter screen 405 form a closed structure on the surface of the anti-crystallization tank 8. The sealing gasket 406 on the upper surface of the anti-crystallization tank 8 forms a sealing structure with the perforated cover plate 404. The outer top cover 401 is movably connected to the top of the filter housing 1 and forms a rotating structure. The "L"-shaped hook 402 is connected to the inner buckle block 7 by rotation. The filter housing 1 is supported on the top of the liquid storage tank 8 by extending the telescopic rod 403, so that the "L"-shaped hook 402 is pressed against the surface of the inner buckle block 7, and the filter housing 1 is installed on the top surface of the filter housing 1.

[0022] In this embodiment, during the filtration process, the movable top cover is installed on the top of the filter housing. By rotating the outer top cover of the movable top cover, the "L"-shaped hook is engaged with the inner buckle. Then, the telescopic cylinder is activated, causing the telescopic rod to extend downwards and install the perforated cover plate on the top of the storage tank. The chemical gas inside the storage tank is filtered through the filter screen on the surface of the perforated cover plate. At the same time, the telescopic rod continues to extend, causing the "L"-shaped hook to press against the lower surface of the inner buckle, thus completing the installation. During this process, particles in the gas are adsorbed onto the surface of the particle screen through the filter screen, preventing crystallization on the surface of the exhaust valve.

[0023] When the filter needs to be cleaned or replaced, the telescopic cylinder drives the telescopic rod to retract, which moves the perforated cover plate upward. Rotating the outer top cover releases the engagement between the "L"-shaped hook and the inner buckle, allowing the outer top cover to be removed. This allows the perforated cover plate and the filter to be removed at the same time, avoiding the need to disassemble the outer casing one by one.

[0024] The above-described embodiments are merely illustrative of certain implementations of the present invention, and are described in a relatively specific and detailed manner. However, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements are all within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A flow guiding structure for an anti-crystallization exhaust valve, characterized in that: It includes a flow guide shell (1), an air inlet pipe (2) fixedly connected to the bottom surface, an exhaust valve (3) fixedly connected to the lower side of the flow guide shell (1), a movable top cover (4) installed on the top surface of the flow guide shell (1), a telescopic cylinder (5) installed on the top surface of the movable top cover (4), a support frame (6) installed on the lower surface of the flow guide shell (1), an inner buckle block (7) provided on the upper surface of the inner wall of the flow guide shell (1), and an anti-crystallization tank (8) provided inside the flow guide shell (1).

2. The flow guiding structure of the anti-crystallization exhaust valve according to claim 1, characterized in that: The top surface of the air intake pipe (2) is connected to the bottom of the anti-crystallization tank (8), and the air intake pipe (2) forms a through structure with the inside of the filter shell (1) through the anti-crystallization tank (8).

3. The flow guiding structure of the anti-crystallization exhaust valve according to claim 1, characterized in that: The movable top cover (4) includes an outer top cover (401), and an "L"-shaped hook (402) is provided on the lower surface of the outer top cover (401). There are two "L"-shaped hooks (402) and a telescopic rod (403) is provided between them. A hollow cover plate (404) is provided on the bottom surface of the telescopic rod (403). A filter screen (405) is provided on the surface of the hollow cover plate (404). A sealing gasket (406) is provided around the lower end of the hollow cover plate (404).

4. The flow guiding structure of the anti-crystallization exhaust valve according to claim 3, characterized in that: The telescopic cylinder (5) is connected to the telescopic rod (403), and the hollow cover plate (404) forms a telescopic structure at the top of the liquid storage tank (8) through the telescopic cylinder (5), and the hollow cover plate (404) filters the liquid inside the liquid storage tank (8) through the filter screen (405) on its surface.

5. The flow guiding structure of the anti-crystallization exhaust valve according to claim 1, characterized in that: The upper telescopic rod (403) of the filter screen (405) and the filter screen (405) constitute a lifting mechanism, and the hollow cover plate (404) and the filter screen (405) form a closed structure on the surface of the anti-crystallization tank (8).

6. The flow guiding structure of the anti-crystallization exhaust valve according to claim 1, characterized in that: The sealing gasket (406) on the upper surface of the anti-crystallization tank (8) and the perforated cover plate (404) form a sealing structure.

7. The flow guiding structure of the anti-crystallization exhaust valve according to claim 1, characterized in that: The outer top cover (401) is movably connected to the top of the filter housing (1) and forms a rotating structure. The "L"-shaped hook (402) is connected to the inner buckle (7) by rotation.

8. The flow guiding structure of the anti-crystallization exhaust valve according to claim 6, characterized in that: The filter housing (1) extends a telescopic rod (403) to support the perforated cover plate (404) on the top of the liquid storage tank (8), so that the "L"-shaped hook (402) is pressed against the surface of the inner buckle block (7), and the filter housing (1) is installed on the top surface of the filter housing (1).