Industrial valve with anti-clogging filter device

Abstract

This invention belongs to the field of filtration devices, and particularly relates to an industrial valve with an anti-clogging filtration device. The device includes a valve body comprising a pipe. A filtration device is installed inside the water inlet end of the pipe, comprising a first filter screen and a second filter screen. The first filter screen is inclined at the left, lower than the right, near the water inlet end of the pipe, and its top is hinged to the top of the pipe body, allowing it to swing up and down. The second filter screen is vertically fixed inside the pipe body. An adjustment component is located at the top of the pipe body, and a drain component is located at the bottom of the pipe body between the first and second filter screens. This design facilitates the continuous flow of liquid to flush away impurities adhering to the surface of the first filter screen. During this process, the second filter screen prevents impurities from entering the valve body. The drain component then promptly discharges the flushed impurities, thereby extending the anti-clogging effect, reducing the frequency of downtime maintenance, and ultimately lowering costs.

Description

Technical Field

[0001] This invention belongs to the field of filtration devices, and in particular relates to an industrial valve with an anti-clogging filtration device. Background Technology

[0002] In industrial valve anti-clogging solutions, adding filters is the most direct and widely used technical means. The principle is to intercept impurities outside the flow channel through the filter screen. However, as the intercepted impurities accumulate, a dense filter cake will gradually form on the surface of the filter screen, causing the effective flow area of ​​the filter to be drastically reduced. At this time, the filter itself becomes the most serious blockage point in the system, resulting in the embarrassing situation where the anti-clogging device clogs first. Summary of the Invention

[0003] The purpose of this invention is to provide an industrial valve with an anti-clogging filter device, which facilitates filter cleaning and prevents clogging.

[0004] The industrial valve with anti-clogging filter device includes a valve body, which includes a pipe. A filter device is installed inside the water inlet end of the pipe, which includes a first filter screen and a second filter screen. The first filter screen is inclined near the water inlet end of the pipe, with the left side higher than the right side. The top of the first filter screen is hinged to the top of the pipe and swings up and down. In its natural state, the bottom of the first filter screen is tightly attached to the bottom of the pipe. The second filter screen is vertically fixed inside the pipe. An adjustment component is provided at the top of the pipe to drive the movable end of the first filter screen to swing up and down. A sewage discharge component is provided at the bottom of the pipe between the first filter screen and the second filter screen.

[0005] Furthermore, the sewage discharge assembly includes a connecting pipe, one end of which is located at the bottom of the pipe body between the first filter screen and the second filter screen and is connected to it, and the other end of which is located between the first filter screen and the water inlet end of the pipe body and is connected to it. The lowest point of the connecting pipe is vertically connected to the sewage discharge pipe, and control valves are provided at both ends of the connecting pipe and on the sewage discharge pipe.

[0006] Furthermore, the adjustment assembly includes an adjustment rod, a through hole for the adjustment rod to slide up and down is provided at the top of the tube, the top of the adjustment rod is located outside the through hole, a sealing ring is provided in the through hole to dynamically seal with the adjustment rod, a scraper is horizontally fixed at the bottom of the adjustment rod located inside the tube, the bottom of the scraper near the second filter screen is connected to the movable end of the first filter screen through a connecting membrane, and the width of the connecting membrane is the same as the width of the connecting membrane. When the top of the scraper is in contact with the top of the tube, the movable end of the first filter screen is in contact with the second filter screen.

[0007] Furthermore, a sealing seat is fixed to the top of the tube body outside the through hole. The sealing seat is in the shape of an inverted "U" and is fastened to the top of the tube body. A threaded through hole is opened on the top of the sealing seat, which is threaded to the adjusting rod. When the scraper is at the bottom of the tube body, the adjusting rod on the outside of the tube body is threaded, and the adjusting rod inside the tube body is smooth.

[0008] Furthermore, a brush for washing the second filter screen is provided at one end of the scraper near the second filter screen.

[0009] Furthermore, the first and second filter screens are made of wire mesh, and the brush is a steel brush.

[0010] Furthermore, the scraper has an overall trapezoidal structure, and the horizontal height of the end near the first filter screen is lower than the horizontal height of the other end.

[0011] Furthermore, the mesh count of the first filter is smaller than that of the second filter.

[0012] Furthermore, the movable end of the first filter screen is provided with an elastic pad.

[0013] Furthermore, both the tube body and the connecting tube are made of transparent material.

[0014] Compared with the prior art, the present invention has the following beneficial effects: This design, through the setting of a first filter screen and a second filter screen, and the cooperation of the adjustment component with the first filter screen, can continuously flush the first filter screen with liquid, washing away the impurities attached to its surface. During the process, the setting of the second filter screen prevents impurities from entering the valve body. Then, the impurities flushed off are discharged in time through the sewage discharge component, thereby prolonging the anti-clogging effect, reducing the frequency of downtime maintenance, and thus reducing costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 for Figure 1 Enlarged view at point B in the middle; Figure 4 This is a diagram showing the usage status of the present invention; Figure 5 for Figure 4 Enlarged view at point C; Figure 6 for Figure 4 Enlarged view at point D; The components in the diagram are named as follows: 1. Pipe body; 2. Connecting pipe; 3. Drain pipe; 4. First filter screen; 5. Second filter screen; 6. Sealing seat; 7. Adjusting rod; 8. Scraper; 9. Connecting membrane; 10. Sealing ring; 11. Pad. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0017] Example 1 This embodiment describes an industrial valve with an anti-clogging filter device, such as... Figure 1 and Figure 4 As shown, it includes a valve body, which includes a pipe body 1. The valve body is an existing industrial valve. The inlet end of the pipe body 1 is equipped with a filter device, which includes a first filter screen 4 and a second filter screen 5. The first filter screen 4 is inclined near the inlet end of the pipe body 1, with the left side higher than the right side. The top of the first filter screen 4 is hinged to the top of the inner wall of the pipe body 1 and swings up and down. In its natural state, the bottom of the first filter screen 4 is tightly attached to the bottom of the inner wall of the pipe body 1. The second filter screen 5 is vertically fixed inside the pipe body 1. The top of the pipe body 1 is equipped with an adjustment component for driving the movable end of the first filter screen 4 to swing up and down. The bottom of the pipe body 1, located between the first filter screen 4 and the second filter screen 5, is equipped with a sewage discharge component. This allows the adjustment component to drive the first filter screen 4 to swing upward, and then the liquid flowing through it to flush the first filter screen 4, washing away the impurities attached to its surface. During this process, the second filter screen 5 prevents impurities from entering the valve body. The sewage discharge component then discharges the flushed impurities in a timely manner, thereby extending the anti-clogging effect, reducing the frequency of downtime maintenance, and thus reducing costs. The first filter screen 4 is equipped with a torsion spring at its hinge end for resetting, which allows it to swing up and down. When the tension of the connecting membrane 9 is lost, its movable end naturally adheres to the bottom of the tube body 1. With the cooperation of the scraper 8 and the connecting membrane 9, it is not affected when the torsion spring is affected by impurities and cannot automatically and quickly reset. As the scraper 8 moves downward, the connecting membrane 9 gradually adheres to the bottom of the scraper 8, which then drives the first filter screen 4 to swing downward until the scraper 8 is at the bottom of the tube body 1 and the first filter screen 4 completes the reset. This also prevents the first filter screen 4 from being pushed by the liquid.

[0018] The sewage discharge assembly includes a connecting pipe 2. One end of the connecting pipe 2 is located at the bottom of the pipe body 1 between the first filter screen 4 and the second filter screen 5 and is connected to it. The other end is located between the first filter screen 4 and the water inlet end of the pipe body 1 and is connected to it. The lowest point of the connecting pipe 2 is vertically connected to the sewage discharge pipe 3. Control valves are provided at both ends of the connecting pipe 2 and the sewage discharge pipe 3. When the first filter screen 4 is repeatedly lifted by liquid impact due to excessive impurities, and when the first filter screen 4 is moved up and down by the adjustment assembly, the impurities attached to the first filter screen 4 are washed away by the continuous flow of liquid. Then, the control valves on the connecting pipe 2 and the sewage discharge pipe 3 are controlled to discharge the impurities in a timely manner. The setting of the connecting pipe 2 facilitates repeated rinsing and cleaning of the impurities attached to the first filter screen 4. The connecting pipe 2 has an overall "U" shape, and the drain pipe 3 is vertically fixed at the bottom of its central area, which facilitates the timely discharge of impurities flushed out and reduces the clogging of the first filter screen 4.

[0019] like Figure 1 and Figure 2 As shown, the adjustment assembly includes an adjustment rod 7. The top of the tube body 1 has a through hole for the adjustment rod 7 to slide up and down. The top of the adjustment rod 7 passes through the through hole and is dynamically sealed to it. The bottom of the adjustment rod 7 located inside the tube body 1 is horizontally fixed with a scraper 8, which facilitates the scraper 8 to move up and down by pulling the adjustment rod 7 to scrape off the impurities attached to the second filter screen 5. The scraper 8 then drives the movable end of the first filter screen 4 to swing up and down, thereby washing away the impurities attached to the first filter screen 4. The impurities are then discharged in time through the connecting pipe 2 and the drain pipe 3. The top of the adjusting rod 7 is located outside the through hole, and a sealing ring 10 is provided inside the through hole to dynamically seal with the adjusting rod 7, so that the adjusting rod 7 can drive the scraper 8 to move up and down while preventing liquid leakage. The bottom of the scraper 8 near the second filter screen 5 is connected to the movable end of the first filter screen 4 via a connecting membrane 9. The width of the connecting membrane 9 is the same as that of the second filter screen 4. When the top of the scraper 8 is in contact with the top of the inner tube 1, the movable end of the first filter screen 4 is in contact with the second filter screen 5. This allows the movable end of the first filter screen 4 to swing up and down via the connecting membrane 9 during the lifting and lowering of the scraper 8. The connecting membrane 9 also blocks the liquid passing through the first filter screen 4, causing it to flow back and downward under the influence of the continuously flowing liquid below. This achieves the effect of forward flushing and reverse rinsing, further delaying the clogging of the first filter screen 4 and effectively reducing the frequency of downtime maintenance.

[0020] The first filter screen has a mesh size of 4, which is smaller than the second filter screen's mesh size of 5. This facilitates step-by-step filtration, improving the filtration effect while preventing excessive clogging.

[0021] like Figure 6As shown, the movable end of the first filter screen 4 is provided with an elastic pad 11, which helps to reduce the wear of the first filter screen 4 on itself, the inner wall of the tube body 1, and the second filter screen 5 caused by the up-and-down swinging. The pad 11 can be made of rubber material, and its bottom end has a rounded structure to reduce the friction with the inner wall of the tube 1.

[0022] Both the tube body 1 and the connecting tube 2 are made of transparent material, which makes it easy to observe the clogging of the first filter screen 4 and the second filter screen 5, so that manual adjustment can be performed for maintenance without stopping the machine. When the clogging problem cannot be solved by maintenance without stopping the machine, then maintenance is performed by stopping the machine, thereby reducing the frequency of maintenance and making maintenance costs lower. The pipe body 1 and the sewage pipe 3 can be made of fluoroplastic or polycarbonate material, depending on the application scenario.

[0023] Example 2 This embodiment further illustrates the technology, such as Figure 1 and Figure 3 As shown, a sealing seat 6 is fixed on the top of the tube body 1 located outside the through hole. The sealing seat 6 is in the shape of an inverted "U" and is fastened to the top of the tube body 1. The top of the sealing seat 6 has a threaded through hole that is threaded to the adjusting rod 7, so that the scraper 8 can be raised and lowered by rotating the adjusting rod 7, thereby avoiding the first filter screen 4 and the connecting membrane 9 from being under excessive pressure when the liquid flow speed is fast, which would cause the adjusting rod 7 to move downward. When the scraper 8 is located at the bottom of the inner tube 1, the adjusting rod 7 located on the outside of the tube 1 is threaded. The adjusting rod 7 located inside the tube 1 has a smooth surface, which not only facilitates further increase in sealing and stability, but also helps to avoid damage to the sealing ring 10 caused by the thread on the adjusting rod 7, thus affecting the sealing effect.

[0024] Example 3 This embodiment further illustrates the technology, such as Figure 5 As shown, a brush for washing the second filter screen 5 is provided at one end of the scraper 8 near the second filter screen 5. This allows the scraper 8 to move up and down by pulling the adjusting rod 7, and the scraper 8 to swing the movable end of the first filter screen 4 up and down. This washes away the impurities attached to the first filter screen 4 while the brush at the other end washes the impurities attached to the second filter screen 5, resulting in better cleaning and less clogging.

[0025] The first filter screen and the second filter screen 5 are made of wire mesh, and the brush is made of steel brush. This makes it easy to brush away the impurities attached to the second filter screen 5, while also breaking it up to further reduce clogging.

[0026] The scraper 8 has a trapezoidal structure, and the horizontal height of one end near the first filter screen 4 is lower than the horizontal height of the other end. This helps to prevent impurities from remaining on the top of the scraper 8 and reduces the pressure of the liquid on the scraper 8 when it moves, making it easier to adjust.

[0027] Working principle: Liquid enters from the inlet end of pipe body 1 and is filtered step by step through the first filter screen 4 and the second filter screen 5. When there are too many impurities on the first filter screen 4 and the second filter screen 5, the adjusting rod 7 is rotated to drive the scraper 8 to move up and down. The adjusting rod 7 drives the movable end of the first filter screen 4 to swing up and down, thereby brushing away the impurities attached to the second filter screen 5. At the same time, the continuously flowing liquid washes the surface of the first filter screen 4 after it swings upward. When the top of the scraper 8 is in contact with the top of the inner wall of pipe body 1, the movable end of the first filter screen 4 is in contact with the second filter screen 5, and the connecting membrane 9 is vertical to block the liquid passing through the first filter screen 4, thereby achieving backflushing of the first filter screen 4. Then, by controlling the opening and closing of the control valves at both ends of the connecting pipe 2, the removed impurities are discharged in time through the connecting pipe 2.

Claims

1. An industrial valve with an anti-clogging filter device, comprising a valve body, the valve body including a pipe body (1), characterized in that: The pipe body (1) is equipped with a filter device inside the water inlet end. The filter device includes a first filter screen (4) and a second filter screen (5). The first filter screen (4) is inclined with the left side higher than the right side near the water inlet end of the pipe body (1). The top of the first filter screen (4) is hinged to the top of the pipe body (1) and swings up and down. In the natural state, the bottom of the first filter screen (4) is tightly attached to the bottom of the pipe body (1). The second filter screen (5) is vertically fixed inside the pipe body (1). The top of the pipe body (1) is equipped with an adjustment component for driving the movable end of the first filter screen (4) to swing up and down. The bottom of the pipe body (1) between the first filter screen (4) and the second filter screen (5) is equipped with a sewage discharge component.

2. The industrial valve with an anti-clogging filter device according to claim 1, characterized in that: The sewage discharge assembly includes a connecting pipe (2), one end of which is connected to the bottom of the pipe body (1) between the first filter screen (4) and the second filter screen (5), and the other end is connected to the inlet end of the pipe body (1) between the first filter screen (4) and the pipe body (1). The lowest point of the connecting pipe (2) is vertically connected to the sewage discharge pipe (3), and control valves are provided at both ends of the connecting pipe (2) and on the sewage discharge pipe (3).

3. The industrial valve with an anti-clogging filter device according to claim 2, characterized in that: The adjustment assembly includes an adjustment rod (7). The top of the tube body (1) is provided with a through hole for the adjustment rod (7) to slide up and down. The top of the adjustment rod (7) is located outside the through hole. A sealing ring (10) is provided in the through hole to dynamically seal with the adjustment rod (7). A scraper (8) is horizontally fixed at the bottom of the adjustment rod (7) located in the tube body (1). The bottom of the scraper (8) near the second filter screen (5) is connected to the movable end of the first filter screen (4) through a connecting membrane (9). The width of the connecting membrane (9) is the same as the width of the connecting membrane (9). When the top of the scraper (8) is in contact with the top of the tube body (1), the movable end of the first filter screen (4) is in contact with the second filter screen (5).

4. The industrial valve with an anti-clogging filter device according to claim 2, characterized in that: A sealing seat (6) is fixed on the top of the tube body (1) located outside the through hole. The sealing seat (6) is in the shape of an inverted "U" and is fastened to the top of the tube body (1). A threaded through hole is opened on the top of the sealing seat (6) and is threaded to the adjusting rod (7). When the scraper (8) is located at the bottom of the tube body (1), the adjusting rod (7) located outside the tube body (1) is threaded. The adjusting rod (7) located inside the tube body (1) is smooth.

5. The industrial valve with an anti-clogging filter device according to claim 4, characterized in that: The scraper (8) is provided with a brush for washing the second filter screen (5) at one end near the second filter screen (5).

6. The industrial valve with an anti-clogging filter device according to claim 5, characterized in that: The first filter screen and the second filter screen (5) are wire mesh, and the brush is a steel brush.

7. The industrial valve with an anti-clogging filter device according to claim 6, characterized in that: The scraper (8) has a trapezoidal structure, and the horizontal height of one end near the first filter screen (4) is lower than the horizontal height of the other end.

8. The industrial valve with an anti-clogging filter device according to claim 7, characterized in that: The mesh count of the first filter screen (4) is smaller than that of the second filter screen (5).

9. The industrial valve with an anti-clogging filter device according to claim 8, characterized in that: The first filter screen (4) has an elastic pad (11) at its movable end.

10. The industrial valve with an anti-clogging filter device according to claim 9, characterized in that: Both the tube body (1) and the connecting tube (2) are made of transparent material.

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