A filter gate valve

Abstract

The utility model belongs to the technical field of gate valve, especially relate to a filter gate valve, include: valve body, open fluid passage, valve plate, install in the valve body for controlling the opening and closing of fluid passage, control handle, with valve plate is connected for controlling the valve plate rises and falls, filter piece, including the base frame, a plurality of first filter screen and a plurality of second filter screen, set up water inlet chamber and water outlet chamber on the base frame, a plurality of first filter screen set up on the water inlet chamber, a plurality of second filter screen set up on the water outlet chamber, wherein, the base frame installs in the fluid passage of valve body, and the base frame and fluid passage form water chamber between, the utility model discloses beneficial effect is realized to the double filtration of fluid, thereby effectively filters off the solid particle in fluid, avoids solid particle impurity to accumulate between valve plate and valve body, prevents the leakage situation when the gate valve closes, and the practicality is high.

Description

Technical Field

[0001] This utility model belongs to the field of gate valve technology, and in particular relates to a filter gate valve. Background Technology

[0002] Gate valves, also known as sluice gate valves, are widely used in pipeline engineering. They are mainly used to shut off the medium and can also be used to regulate flow. A flat valve plate, perpendicular to the direction of medium flow, is typically installed inside the valve body. When the valve plate is raised, the gate valve opens; when the valve plate is lowered, the gate valve closes.

[0003] In the existing technology, most gate valves do not have a filtration function. During long-term use, solid particulate impurities in the fluid tend to accumulate in the valve body, which leads to a gap between the valve plate and the valve body when the valve plate is closed, causing leakage. Utility Model Content

[0004] The purpose of this utility model is to provide a filter gate valve to address the aforementioned technical problems.

[0005] In view of this, the present invention provides a filter gate valve, comprising:

[0006] The valve body has a fluid passage.

[0007] Valve plate, which can be raised and lowered and installed in the valve body, is used to control the opening and closing of the fluid passage;

[0008] The control handle is connected to the valve plate and is used to control the valve plate to rise and fall.

[0009] The filter element includes a base frame, a plurality of first filter screens and a plurality of second filter screens. The base frame is provided with an inlet chamber and an outlet chamber. The plurality of first filter screens are disposed on the inlet chamber and the plurality of second filter screens are disposed on the outlet chamber.

[0010] The base frame is installed inside the fluid channel of the valve body, and a water-passing chamber is formed between the base frame and the fluid channel.

[0011] Furthermore, both the inlet chamber and the outlet chamber are frustum-shaped.

[0012] Furthermore, the first filter screens and the second filter screens are arranged in a ring array.

[0013] Furthermore, the framework includes:

[0014] The mounting part is located at the end of the base frame and is connected to the valve body by fasteners.

[0015] Furthermore, the framework also includes:

[0016] The plug-in part is located on the end of the base frame away from the mounting part;

[0017] The valve body has a slot, and the plug part is adapted to plug into the slot.

[0018] Furthermore, limit ribs are provided on the base frame;

[0019] The fluid channel has a limiting groove on its inner wall, and the limiting rib is adapted to the limiting groove.

[0020] Furthermore, there are several limiting ribs and several limiting grooves, and the several limiting ribs and several limiting grooves are connected in a one-to-one correspondence.

[0021] Furthermore, several limiting ribs and several limiting grooves are arranged in a ring array.

[0022] The beneficial effects of this utility model are:

[0023] When fluid enters the valve body, it first flows into the inlet chamber, then through the first filter screen into the through chamber, where the first filter screen filters the fluid. The fluid then passes through the second filter screen into the outlet chamber, where the second filter screen performs a second filtration, achieving dual filtration of the fluid. This effectively removes solid particles from the fluid, preventing the accumulation of solid impurities between the valve plate and the valve body, and preventing leakage when the gate valve is closed. This design is highly practical. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This utility model Figure 1 Enlarged schematic diagram of the structure at point A;

[0026] Figure 3 This is a schematic diagram of the filter element in this utility model;

[0027] Figure 4 This is a cross-sectional view of the filter element in this utility model;

[0028] The markings in the diagram are as follows:

[0029] 1. Valve body; 2. Fluid passage; 3. Valve plate; 4. Control handle; 5. Base frame; 6. First filter screen; 7. Second filter screen; 8. Inlet chamber; 9. Outlet chamber; 10. Passing chamber; 11. Mounting part; 12. Insertion part; 13. Limiting rib. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0032] Example 1:

[0033] This embodiment provides a filter gate valve, including:

[0034] Valve body 1, with a fluid passage 2 inside the valve body 1;

[0035] Valve plate 3 is installed in the valve body 1 in a height-adjustable manner and is used to control the opening and closing of the fluid channel 2.

[0036] Control handle 4 is connected to valve plate 3 and is used to control the rise and fall of valve plate 3;

[0037] The filter element includes a base frame 5, a plurality of first filter screens 6 and a plurality of second filter screens 7. The base frame 5 is provided with an inlet chamber 8 and an outlet chamber 9. The plurality of first filter screens 6 are disposed on the inlet chamber 8 and the plurality of second filter screens 7 are disposed on the outlet chamber 9.

[0038] The base frame 5 is installed in the fluid channel 2 of the valve body 1, and a water passage chamber 10 is formed between the base frame 5 and the fluid channel 2.

[0039] In this technical solution, a fluid channel 2 is provided inside the valve body 1, and an inlet and an outlet are formed on the valve body 1. The base frame 5 of the filter element is hourglass-shaped, and an inlet chamber 8 and an outlet chamber 9 are provided inside the base frame 5. The base frame 5 is installed in the fluid channel 2 of the valve body 1 and is located at the inlet. The inlet chamber 8, the water passage chamber 10, and the outlet chamber 9 are connected in sequence. A first filter screen 6 is provided at the connection between the inlet chamber 8 and the water passage chamber 10, and a second filter screen 7 is provided at the connection between the water passage chamber 10 and the outlet chamber 9. Fluid enters valve body 1, first flowing into inlet chamber 8, then through first filter screen 6 into through chamber 10, where the first filter screen 6 filters the fluid. Then, from through chamber 10, it passes through second filter screen 7 into outlet chamber 9, where the second filter screen 7 performs a second filtration, achieving dual filtration of the fluid. This effectively removes solid particles from the fluid, preventing the accumulation of solid impurities between valve plate 3 and valve body 1, and preventing leakage when the gate valve is closed. This method is highly practical.

[0040] Example 2:

[0041] This embodiment provides a filter gate valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0042] Furthermore, both the inlet chamber 8 and the outlet chamber 9 are frustum-shaped.

[0043] Furthermore, the first filter screens 6 and the second filter screens 7 are arranged in a ring array.

[0044] This structural design increases the area of ​​the first filter screen 6 in the inlet chamber 8 and the area of ​​the second filter screen 7 in the outlet chamber 9, effectively improving filtration efficiency. Furthermore, the frustum-shaped inlet chamber 8 and outlet chamber 9 ensure a uniform distribution of fluid impact force on the filter elements, effectively preventing deformation of the base frame 5 due to localized high pressure, extending the service life of the filter elements, and improving durability. It also makes this filter gate valve suitable for controlling the opening and closing of some high-pressure fluids.

[0045] Example 3:

[0046] This embodiment provides a filter gate valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0047] Furthermore, the base frame 5 includes:

[0048] Mounting part 11 is provided on the end of the base frame 5 and is connected to the valve body 1 by fasteners.

[0049] In this technical solution, a fixing groove is provided at the liquid inlet of the valve body 1, and several mounting holes are provided in the fixing groove. The mounting part 11 has a ring-shaped structure and several connecting holes. The mounting part 11 is placed in the fixing groove, and fasteners are provided to connect with the mounting holes through the connecting holes, thereby realizing the installation and fixation of the mounting part 11 on the fixing groove. This allows for the detachable installation of the filter element's base frame 5 on the valve body 1. This structural design helps operators install and disassemble the filter element, facilitates cleaning and maintenance, and has high practicality.

[0050] Furthermore, the base frame 5 also includes a plug-in portion 12, which is located at the end of the base frame 5 away from the mounting portion 11; wherein, a slot is provided inside the valve body 1, and the plug-in portion 12 is adapted to the slot for plug-in connection. Through this structural design, the installation stability of the base frame 5 within the valve body 1 is enhanced by the plug-in connection between the plug-in portion 12 and the slot.

[0051] Example 4:

[0052] This embodiment provides a filter gate valve, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0053] Furthermore, limit ribs 13 are provided on the base frame 5;

[0054] In this fluid channel 2, a limiting groove is provided on the inner wall, and the limiting rib 13 is adapted to and connected to the limiting groove.

[0055] In this technical solution, by adapting the limiting rib 13 to the limiting groove, on the one hand, the limiting rib 13 can play a positioning and guiding role in the installation of the base frame 5 in the valve body 1, improving the ease of installation; on the other hand, the limiting rib 13 and the limiting groove abut against each other in the circumferential direction, which plays a limiting and fixing role in the base frame 5, effectively enhancing the installation stability of the base frame 5 in the valve body 1, and making it highly practical.

[0056] Furthermore, there are multiple limiting ribs 13 and multiple limiting grooves, and the multiple limiting ribs 13 and multiple limiting grooves are connected in a one-to-one correspondence. Furthermore, the multiple limiting ribs 13 and multiple limiting grooves are arranged in a ring array. Through the above structural design, the installation stability of the foundation frame 5 in the valve body 1 can be further improved.

[0057] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A filter gate valve, characterized in that, include: The valve body (1) has a fluid passage (2) inside it. Valve plate (3), which is installed in the valve body (1) in a height-adjustable manner, is used to control the opening and closing of the fluid channel (2); A control handle (4) is connected to a valve plate (3) and is used to control the valve plate (3) to rise and fall. The filter element includes a base frame (5), a plurality of first filter screens (6) and a plurality of second filter screens (7). The base frame (5) is provided with an inlet chamber (8) and an outlet chamber (9). The plurality of first filter screens (6) are disposed on the inlet chamber (8) and the plurality of second filter screens (7) are disposed on the outlet chamber (9). The base frame (5) is installed in the fluid channel (2) of the valve body (1), and a water-filled chamber (10) is formed between the base frame (5) and the fluid channel (2).

2. A filter gate valve according to claim 1, characterized in that, Both the inlet chamber (8) and the outlet chamber (9) are frustum-shaped.

3. A filter gate valve according to claim 1, characterized in that, The first filter screens (6) and the second filter screens (7) are arranged in a ring array.

4. A filter gate valve according to claim 1, characterized in that, The base frame (5) includes: Mounting part (11) is provided on the end of the base frame (5) and is connected to the valve body (1) by fasteners.

5. A filter gate valve according to claim 4, characterized in that, The base frame (5) also includes: A plug-in portion (12) is provided on one end of the base frame (5) away from the mounting portion (11); The valve body (1) has a slot, and the plug-in part (12) is adapted to plug into the slot.

6. A filter gate valve according to claim 5, characterized in that, Limiting ribs (13) are provided on the base frame (5); The fluid channel (2) has a limiting groove on its inner wall, and the limiting rib (13) is adapted to and connected to the limiting groove.

7. A filter gate valve according to claim 6, characterized in that, There are several limiting ribs (13) and several limiting grooves, and the several limiting ribs (13) and several limiting grooves are connected in a one-to-one correspondence.

8. A filter gate valve according to claim 7, characterized in that, The limiting ribs (13) and the limiting grooves are arranged in a ring array.

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