A multi-purpose baffle valve

Abstract

This utility model relates to the field of baffle valve technology, specifically to a multi-purpose baffle valve, including a valve body and a sealing assembly. The valve body has a top end cap and a first air passage at one outer end. A lower sealing plate with a second air passage is located at the bottom of the valve body. A driving device is mounted on the top of the upper end cap. A sealing assembly is installed between the bottom of the driving device and the valve body. A connecting rod is mounted on the bottom of the driving device, passing through the sealing assembly and entering the interior of the valve body. A baffle is connected to the bottom of the connecting rod. A sealing plate support sleeve is installed on the inner side of the lower sealing plate, and a baffle guide rod extends into the sealing plate support sleeve. This utility model solves the shortcomings of existing baffle valves, such as complex manufacturing and the inability to be installed horizontally. It optimizes the top plate cover, flange, and baffle of the valve body, reducing manufacturing costs.

Description

Technical Field

[0001] This utility model relates to the field of baffle valve technology, specifically a multi-purpose baffle valve. Background Technology

[0002] A baffle valve is a fluid control device that uses a baffle as its opening and closing element. Its working principle is based on the non-penetrating relative movement of the baffle on the valve seat sealing surface to open and close the flow path. Vacuum baffle valves and lift valves are examples of devices that conform to this principle. Vacuum baffle valves are a standard feature in vacuum systems and are widely used for: isolating the main pump: installed between the vacuum chamber and the main pump (such as a diffusion pump or molecular pump). When the system is shut down or the vacuum is broken, closing the valve protects the expensive main pump from atmospheric, dust, or process contaminants. Switching process piping: used in multi-chamber or multi-pump systems to switch gas flow paths. The structure of the lift valve (a type of baffle valve, hereinafter referred to as baffle valve) is the same as that of the vacuum baffle valve. Its application scenarios are RTO, flue gas and other places. These valves do not have high requirements for leakage control. In recent years, with the advancement of environmental protection technology, gas valves with zero leakage in large channels have emerged. This is the third application scenario for baffle valves. More application scenarios will not be listed here.

[0003] L-type baffle valves combine the functions of elbows and valves, and have a wide range of applications.

[0004] In a known baffle valve, the top actuator is installed in a flat plate, meaning the valve body's top cover is a flat plate, and the baffle inside the valve body is also a flat plate.

[0005] Vacuum baffle valves described in applications 201921306963.9, 202420528631.X, and 202021949680.9 all eliminate the top cover and flange on the valve body and restrict the inlet and outlet flanges of the gas path, resulting in poor adaptability. Furthermore, the manufacturing cost of the top cover and flange is relatively high.

[0006] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and proposed a multi-purpose baffle valve in order to achieve greater practical value. Utility Model Content

[0007] The purpose of this invention is to provide a multi-purpose baffle valve to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a multi-purpose baffle valve, the top and baffle of which are end-cap shaped. Depending on different application scenarios, the sealing assembly of the valve body can be selectively configured to meet high vacuum, zero leakage, and conventional application scenarios. The baffle valve includes a valve body and a sealing assembly. The top of the valve body is an end-cap, and a driving device is provided on the top of the end-cap. A sealing assembly is installed between the driving device and the valve body. A connecting rod is installed at the bottom of the driving device, passing through the sealing assembly and entering the interior of the valve body. The bottom of the connecting rod is connected to the baffle. The baffle guide shaft extends into the sealing plate support sleeve. The configuration of the sealing assembly of the valve body determines the application scenario of the baffle valve, and the configurations of the sealing assemblies are all publicly known.

[0009] Furthermore, the drive device is configured as a cylinder drive device or an electric drive device.

[0010] Furthermore, the top of the valve body is a cap or any other non-flat shape.

[0011] Furthermore, the seal may be provided on a baffle or a sealing plate.

[0012] Furthermore, the baffle is configured as a flat plate, an ellipse, or other baffle that matches the inner diameter of the valve body.

[0013] Furthermore, the valve body can be configured as a two-way, three-way, or multi-way ventilation structure.

[0014] Furthermore, the sealing plate support bushing is concentric with the valve body, and the sealing plate support bushing has at least two support points connected to the sealing plate. The support bushing is set on the connecting pipe concentric with the valve body.

[0015] This utility model provides a multi-purpose baffle valve, which has the following beneficial effects: 1. This utility model can eliminate the traditional valve body flat plate cover and flange, and adjust them to an elliptical or other non-planar structure, which can be directly welded to the valve body. The sealing surface is eliminated, and a spare port is added for inspection, maintenance or air passage, etc. The baffle can be a flat plate, an ellipse, or any other shape, as long as it meets the requirements of rigidity and sealing. The seal can be placed on the baffle or a corresponding sealing plate. The top of the baffle valve adopts a head or other non-flat type to replace the traditional flat plate and flange type, which has the advantages of thin wall and no leakage. This not only improves the sealing performance, but also reduces the weight and manufacturing cost of the baffle valve, and makes it possible to produce a series of products on a single production line.

[0016] The baffle valve can be installed horizontally. Attached Figure Description

[0017] The disclosure of this utility model will become more readily understood with reference to the accompanying drawings. It will be readily understood by those skilled in the art that these drawings are merely illustrative of the technical solutions of this utility model and are not intended to limit the scope of protection of this utility model. In the drawings: Figure 1 This is a schematic diagram of the first embodiment of the vacuum baffle valve of this utility model; Figure 2 This is a schematic diagram of the second embodiment of the vacuum baffle valve of this utility model; Figure 3 This is a schematic diagram of the third embodiment of the present invention, which includes a zero-leakage baffle valve and a conventional baffle valve. Figure 4 This is a schematic diagram of the fourth embodiment of the present invention, which includes a zero-leakage baffle valve and a conventional baffle valve. Figure 5 This is a schematic diagram of the structure of the support bushing of this utility model in use; In the diagram: 1. Valve body; 2. End cap; 3. First air passage; 4. Spare port; 5. Second air passage; 6. Baffle; 7. Connecting rod; 8. Sealing assembly; 9. Lower sealing plate; 10. Drive unit; 11. Sealing ring; 12. Upper sealing plate; 13. Third air passage; 14. Sealing plate support bushing.

[0018] This utility model does not provide a specific description of the flange connecting the baffle valve to the external environment, which can be configured according to different application scenarios. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-5 This utility model provides a technical solution: a multi-purpose baffle valve, including a valve body 1 and a sealing assembly 8. The valve body 1 is provided with a cap 2 at the top and a first air passage 3 at one outer end of the valve body 1. The valve body 1 is provided with a lower sealing plate 9 at the bottom and a second air passage 5 at the lower sealing plate 9. The upper cap 2 is provided with a driving device 10 at the top. The sealing assembly 8 is installed between the driving device 10 and the valve body 1. The driving device 10 is provided with a connecting rod 7 at the bottom and the connecting rod 7 passes through the sealing assembly 8 and enters the interior of the valve body 1. The bottom of the connecting rod 7 is connected to a baffle 6. The guide rod of the baffle 6 extends into the sealing plate support sleeve 14.

[0021] A spare port 4 is provided at the other end of the outer side of the valve body 1. The sealing ring 11 can be arbitrarily set on the sealing plate (9 or 12) or the baffle 6. The driving device 10 is set as a cylinder driving device or an electric driving device. An upper sealing plate 12 is fixed in the middle of the inner side of the valve body 1, which divides the interior of the valve body 1 into upper and lower regions. A first air passage 3 is provided on one side of the upper region, and a third air passage 13 is provided on one side of the lower region. The baffle 6 is set as a flat plate, an ellipse, or other baffle that matches the inner diameter of the valve body 1. The valve body 1 can be set as a double-pass, three-pass, or multi-pass ventilation structure.

[0022] According to the appendix Figure 1 The first embodiment: Vacuum baffle valve: A cylinder-driven or electric-driven device is installed on the upper part of the valve body 1. The connecting rod 7 is driven electrically or pneumatically to move the baffle 6 up and down, thereby opening or closing the valve. When the baffle 6 is lifted, the first air passage 3 and the second air passage 5 are connected. When the baffle 6 is lowered, the first air passage 3 and the second air passage 5 are disconnected. The seal between the valve body 1 and the cylinder 10 should meet the vacuum baffle valve specification standard. In case of failure, maintenance can be carried out through the spare port 4. The spare port 4 can also be used as an air passage. When the horizontal installation method is selected, a sealing plate support bushing 14 and a guide rod need to be added.

[0023] According to the appendix Figure 2 The second embodiment: Vacuum baffle valve: A cylinder-driven or electric-driven device is installed on the upper part of the valve body 1. The connecting rod 7 is driven electrically or pneumatically to move the baffle 6 up and down, thereby opening or closing the valve. When the baffle 6 is lifted, it closes the upper sealing plate 12 in the middle, and the second air passage 5 and the third air passage 13 are connected. When the baffle 6 is lowered, the first air passage 3 and the third air passage 15 are connected. The seal between the valve body 1 and the cylinder 10 should meet the specifications of the vacuum baffle valve. In case of failure, maintenance can be carried out through the spare port 4. The spare port can be used as an air passage. When the horizontal installation method is selected, a sealing plate support bushing 14 and a guide rod need to be added.

[0024] According to the appendix Figure 3 The third embodiment: Conventional baffle valve: The end cap 2 on the top of the valve body 1 in embodiment 2 is combined with the first air passage 3 to replace the first air passage 3 for air passage. The sealing component 8 is adjusted to a normal seal or a high-temperature resistant asbestos packing seal, etc. The sealing ring 11 is a soft, hard or high-temperature resistant seal. Other operating methods are the same as in the second embodiment.

[0025] According to the appendix Figure 4 The fourth embodiment: The conventional baffle valve adjusts the sealing assembly 8 and sealing ring of the valve body in Embodiment 1 to be the same as in Embodiment 3, while other operating methods are the same as in Embodiment 1.

[0026] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be conceived by those skilled in the art within the technical scope disclosed in this utility model without creative effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope defined in the claims.

Claims

1. A multi-purpose flapper valve comprising a valve body (1) and a sealing assembly (8), characterized in that: The valve body (1) is provided with a head (2) at the top and a first air passage (3) at one end of the outer side of the valve body (1). The valve body (1) is provided with a lower sealing plate (9) at the bottom and a second air passage (5) at the lower sealing plate (9). The head (2) is provided with a drive device (10) at the top. A sealing assembly (8) is installed between the bottom of the drive device (10) and the valve body (1). A connecting rod (7) is installed at the bottom of the drive device (10) and passes through the sealing assembly (8) to enter the interior of the valve body (1). A baffle (6) is connected to the bottom of the connecting rod (7). A sealing plate support bushing (14) is installed on the inner side of the lower sealing plate (9). The guide rod of the baffle (6) extends into the sealing plate support bushing (14).

2. A multi-purpose flapper valve according to claim 1, wherein The drive device (10) is configured as a cylinder drive device or an electric drive device.

3. A multi-purpose flapper valve according to claim 1, wherein The end cap (2) is configured as a non-flat arbitrary type that matches the valve body and meets the functional requirements.

4. A multi-purpose flapper valve according to claim 1, wherein Both the baffle (6) and the sealing plate (9) are provided with sealing rings (11) on opposite sides.

5. The multi-purpose flapper valve according to claim 1, wherein The baffle (6) is configured as a flat plate, an ellipse, or a baffle that matches the inner diameter of the valve body (1).

6. A multi-purpose flapper valve according to claim 1, wherein The valve body (1) can be configured as a two-way, three-way or multi-way ventilation structure.

7. A multi-purpose flapper valve according to claim 1, wherein The sealing plate support bushing (14) is concentric with the valve body (1), and the sealing plate support bushing (14) has at least two support points connected to the sealing plate (9). The support bushing is set on the connecting pipe concentric with the valve body.

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