Sealing valve for pressure container
By designing a tapered surface contact sealing valve for pressure vessels, the problem of poor sealing effect in the prior art is solved, efficient sealing in high-pressure environments is achieved, and material adhesion is avoided through the design of ventilation holes.
Patent Information
- Application Number
- CN202420221322.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-30
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-01-30
AI Technical Summary
In the prior art, the sealing effect of the inlet and outlet valves of the pressure vessel is not ideal, which can easily lead to leakage of powdered materials, especially in high-pressure environments.
A sealed valve for pressure vessels is designed, and a tapered surface contact sealing structure is adopted. The pressure inside the pressure vessel is used to enhance the fit between the conical valve plate and the valve body's conical surface, improve sealing, and a ventilation hole is provided on the periphery of the valve body to clean up the material.
It effectively avoids material leakage and improves sealing performance, especially in high-pressure environments, and at the same time, material adhesion is avoided through the design of ventilation holes, and the service life of the valve is improved.
Smart Images
Figure CN222577329U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of material conveying, in particular to a sealing valve for a pressure container. Background Art
[0002] During the material preparation process, it is often necessary to transport the materials to various containers for heating or stirring. In the prior art, stop valves are often installed at the inlet and outlet of the container to achieve the sealing of the container. When conveying powdered materials (such as positive electrode materials of lithium batteries), the materials are easy to adhere to the switch part of the stop valve or the connection surface between the stop valve and the container. In addition, since the powdered materials are relatively fine, the sealing requirements of the container are high, especially for pressure vessels. When the internal pressure of the container is high, the stop valve often fails to meet the sealing requirements, and material leakage is easy to occur, which not only endangers the health of the staff, but also causes the finished materials to be unqualified. Therefore, it is necessary to design a sealing valve with good sealing performance for pressure vessels. Utility Model Content
[0003] In order to solve the technical problem in the prior art that the sealing effect of the inlet and outlet valves of the pressure vessel is not ideal and powdered materials are easily leaked, the utility model provides a sealing valve for the pressure vessel to solve the above problem.
[0004] The utility model solves the technical problem by adopting the following technical solution: a sealing valve for a pressure vessel, comprising a valve body, a feed pipe and a conical valve plate, wherein one end of the valve body is a closed end, and the other end is an open end connected to the inlet of the pressure vessel; the feed pipe is connected to the valve body; the conical valve plate is movably installed inside the valve body, and the open end of the valve body has a conical surface that contacts and cooperates with the conical valve plate, and the diameter of the conical surface gradually increases from the inside of the valve body to the open end.
[0005] When the conical valve plate moves toward the open end, the conical valve plate can be separated from the conical surface, so that the feed pipe is connected to the pressure container; when the conical valve plate moves toward the inside of the valve body, the conical valve plate can contact the conical surface, so that the feed pipe is disconnected from the pressure container.
[0006] Furthermore, the valve body is a columnar structure, and the conical valve plate reciprocates along the axial direction of the valve body.
[0007] Furthermore, a driving member is installed at the closed end of the valve body, and the driving member is connected to the conical valve plate.
[0008] Furthermore, the driving member is a cylinder or a thrust motor.
[0009] Furthermore, the valve body includes a valve body with two ends connected and a cover plate and a flange fixed to the two ends of the valve body; the flange is connected to the pressure vessel, and the flange has a short-circuit section extending into the interior of the pressure vessel, and the conical surface is located on the short-circuit section.
[0010] Furthermore, the flange surface has a plurality of vent holes extending to the conical surface, and a purge interface is installed at the vent holes.
[0011] Furthermore, the vent holes are arranged in an array along the outer circumference of the valve body.
[0012] Furthermore, the feed pipe is arranged obliquely with respect to the valve body, the feed pipe has an extension section extending into the interior of the valve body, and the extension section has a channel for the driving member to pass through.
[0013] Furthermore, the inner surface and the outer surface of the conical valve plate are both conical surfaces.
[0014] The beneficial effects of the utility model are:
[0015] (1) The sealing valve for a pressure vessel described in the utility model changes the traditional valve into a conical surface contact sealing structure. When the internal pressure of the pressure vessel increases, the internal air pressure can help the conical valve plate to fit with the conical surface of the valve body, thereby improving the sealing performance and effectively avoiding leakage.
[0016] (2) The utility model has a vent hole extending to the conical surface on the periphery of the valve body, which can clean the material on the surface of the conical valve plate when the valve is closed to prevent the material from adhering to the surface of the conical valve plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0018] Figure 1 It is a schematic diagram of the sealing valve for a pressure vessel of the utility model in a closed valve state;
[0019] Figure 2 yes Figure 1 The enlarged image at a in the middle;
[0020] Figure 3 It is a schematic diagram of a feed channel of the sealing valve for a pressure vessel described in the utility model when the sealing valve is in an open valve state.
[0021] In the figure, 1, valve body, 101, valve body, 102, cover plate, 103, flange, 2, feed pipe, 201, extension section, 3, conical valve plate, 4, conical surface, 5, short-circuit section, 6, drive part, 7, channel, 8, vent hole, 9, purge interface, 10, feed channel. DETAILED DESCRIPTION
[0022] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0023] Embodiment 1
[0024] like Figure 1-Figure 3 As shown, a sealing valve for a pressure vessel comprises a valve body 1, a feed pipe 2 and a conical valve plate 3. The valve body 1 is a hollow cylindrical structure, one end of the valve body 1 is a closed end, and the other end is an open end connected to the inlet of the pressure vessel. The feed pipe 2 is connected to the valve body 1; the feed pipe 2 is connected to the upper material container, and the material enters from the feed pipe 2 and falls into the pressure vessel through the valve body 1.
[0025] The conical valve plate 3 is movably installed inside the valve body 1, and the open end of the valve body 1 has a conical surface 4 that contacts and cooperates with the conical valve plate 3, and the diameter of the conical surface 4 gradually increases from the inside of the valve body 1 to the open end. The conical surface 4 cooperates with the conical valve plate 3 means that the conical valve plate 3 is a conical structure, and the two can contact and fit; since the outer diameter of the conical valve plate 3 toward the open end of the valve body 1 is larger, when the conical valve plate 3 moves toward the open end, the end of the conical valve plate 3 with a smaller outer diameter gradually moves to the inside of the conical surface 4, so that the conical valve plate 3 is separated from the conical surface 4, at this time, the feed pipe 2 is connected with the pressure vessel, and the sealing valve is in the open valve state; when the conical valve plate 3 moves toward the inside of the valve body 1, the end of the conical valve plate 3 with a larger outer diameter gradually moves to the inside of the conical surface 4 until the conical valve plate 3 contacts the conical surface 4, at this time, the feed pipe 2 is disconnected from the pressure vessel, and the sealing valve is in the closed valve state.
[0026] When the pressure vessel is working, the internal pressure increases, and the air pressure acts on the lower surface of the conical valve plate 3, and the conical valve plate 3 squeezes the conical surface 4, so that the conical valve plate 3 and the conical surface 4 are in closer contact and have stronger sealing. Therefore, the utility model can not only realize the on-off valve action, but also can enhance the sealing performance by means of the pressure inside the pressure vessel during the working process of the pressure vessel, thereby solving the problem of insufficient sealing performance of traditional valves.
[0027] like Figure 1 As shown, the valve body 1 is a cylindrical structure, and the valve body 1 is composed of a valve body 101, a cover plate 102 and a flange 103. The two ends of the valve body 101 are connected and arranged vertically, and its upper end is sealed as a closed end by the cover plate 102, and the lower end is an open end and is connected to the pressure container through the flange 103. The conical valve plate 3 reciprocates in the valve body 1 along the axial direction of the valve body 101.
[0028] The flange 103 has a short-circuit section 5 extending into the interior of the pressure vessel, and the conical surface 4 is located on the short-circuit section 5. When the sealing valve is installed with the pressure vessel, the short-circuit section 5 is located inside the pressure vessel, which can improve the sealing effect. Figure 1 When the valve needs to be opened, the conical valve plate 3 moves downward, that is, moves toward the inside of the pressure vessel, so that a feed channel 10 (as shown in FIG. 1 ) is generated between the conical valve plate 3 and the conical surface 4 for the material to pass through. Figure 3 shown).
[0029] The conical valve plate 3 can be driven to reciprocate by the driving member 6, and the driving member 6 can be installed inside the valve body 1. In this embodiment, the driving member 6 is installed at the closed end of the valve body 1, and the telescopic rod of the driving member 6 is connected to the conical valve plate 3. The driving member 6 is best in linear motion, and can be a cylinder, a thrust motor or other mechanical equipment that can achieve linear drive.
[0030] The feed pipe 2 and the valve body 1 are arranged obliquely. In order to prevent the material from floating toward the top surface of the valve body 1, the feed pipe 2 preferably has an extension section 201 extending into the interior of the valve body 1. The extension section 201 can make the outlet of the feed pipe 2 tilt downward and reduce the height of the material falling, thereby promoting the downward movement of the material. The extension section 201 has a channel 7 for the driving member 6 to pass through, thereby avoiding interference between the extension section 201 and the driving member 6. Since the extension section 201 is fixedly arranged, the telescopic rod of the driving member 6 moves up and down, so the size of the channel 7 does not need to be too large. Figure 1 As shown, the extension section 201 only has an upper arc-shaped area, and the lower area of the feed pipe 2 does not extend into the valve body 1. After the material enters the valve body 1, it can fall directly downward, and the extension section 201 can assist in blocking the upward movement of the material.
[0031] Embodiment 2
[0032] In the first embodiment, since the conical valve plate 3 is located in the pressure vessel during the material conveying process, the material is easily accumulated on the outer surface of the conical valve plate 3. Therefore, the present embodiment is improved as follows: the surface of the flange 103 has a plurality of vents 8 extending to the conical surface 4, and a purge interface 9 is installed at the vent 8, such as Figure 3 As shown, in the valve open state, the purge interface 9 continuously blows air to the vent hole 8. Since the outlet of the vent hole 8 is located on the conical surface 4, air can be blown directly to the outer surface of the conical valve plate 3, thereby avoiding the accumulation of materials on the conical valve plate 3. After the discharge of materials is completed, the valve should be closed. When the valve plate 3 moves upward, the purge interface 9 blows air to clean the residual materials on the surface of the valve plate 3. The vent holes 8 are preferably arranged in an array along the outer circumference of the valve body 101.
[0033] In the description of the present invention, it is necessary to understand that the terms "center", "upper", "lower", "vertical", "inner", "outer", "axial", "circumferential", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0034] In addition, in the description of the present invention, unless otherwise specified, “several” means two or more.
[0035] In this specification, the schematic representation of the terms does not necessarily refer to the same embodiment. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in one or more embodiments.
[0036] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.
Claims
1. A sealing valve for a pressure vessel, characterized in that: include: A valve body (1), one end of the valve body (1) being a closed end and the other end being an open end communicating with an inlet of a pressure container; A feed pipe (2) connected to the valve body (1); A conical valve plate (3) is movably mounted inside the valve body (1); the open end of the valve body (1) has a conical surface (4) that contacts and cooperates with the conical valve plate (3); the diameter of the conical surface (4) gradually increases from the inside of the valve body (1) to the open end; When the conical valve plate (3) moves toward the open end, the conical valve plate (3) can separate from the conical surface (4), so that the feed pipe (2) is connected to the pressure container; when the conical valve plate (3) moves toward the inside of the valve body (1), the conical valve plate (3) can contact with the conical surface (4), so that the feed pipe (2) is disconnected from the pressure container.
2. The sealing valve for a pressure vessel according to claim 1, characterized in that: The valve body (1) is a columnar structure, and the conical valve plate (3) reciprocates along the axial direction of the valve body (1).
3. The sealing valve for a pressure vessel according to claim 2, characterized in that: A driving member (6) is installed at the closed end of the valve body (1), and the driving member (6) is connected to the conical valve plate (3).
4. The sealing valve for a pressure vessel according to claim 3, characterized in that: The driving member (6) is a cylinder or a thrust motor.
5. The sealing valve for a pressure vessel according to claim 1, characterized in that: The valve body (1) comprises a valve body (101) with two ends connected therethrough, and a cover plate (102) and a flange (103) fixed to the two ends of the valve body (101); the flange (103) is connected to a pressure vessel, the flange (103) has a short-circuit section (5) extending into the interior of the pressure vessel, and the conical surface (4) is located on the short-circuit section (5).
6. The sealing valve for a pressure vessel according to claim 5, characterized in that: The surface of the flange (103) has a plurality of vent holes (8) extending to the conical surface (4), and a purge interface (9) is installed at the vent holes (8).
7. The sealing valve for a pressure vessel according to claim 6, characterized in that: The vent holes (8) are arranged in an array along the outer circumference of the valve body (101).
8. The sealing valve for a pressure vessel according to claim 3, characterized in that: The feed pipe (2) and the valve body (1) are arranged obliquely, the feed pipe (2) has an extension section (201) extending into the interior of the valve body (1), and the extension section (201) has a channel (7) for the driving member (6) to pass through.
9. The sealing valve for a pressure vessel according to claim 1, characterized in that: The inner surface and the outer surface of the conical valve plate (3) are both conical surfaces (4).