A valve with anti-sludge abrasion mechanisms and easy monitoring capabilities.

Abstract

This application discloses a valve with anti-sludge abrasion measures and easy monitoring, comprising: a valve body having an inner cavity for the passage of a fluid working medium and an outer wall for connection with a pipeline, the outer wall of the valve body having at least one support seat arranged radially along the valve body; a valve core housed in the inner cavity of the valve body, including a valve shaft rotatably connected to the outer wall of the valve body, the valve shaft being sleeved in the support seat of the valve body; a removable additional layer having a cylindrical shape, rotatably sleeved on the valve shaft, and detachably fixed relative to the outer wall of the valve body to form a gap between the inner peripheral surface of the removable additional layer and the outer peripheral surface of the valve shaft; and a cleaning assembly including a water supply hole and a drain hole disposed in the valve body and the removable additional layer, the water supply hole introducing cleaning water from a clean water source into the gap, and the drain hole discharging the cleaning water in the gap to the outside of the valve body. As the cleaning water flows through the gap, it carries away the sludge within it, thus achieving flushing.

Description

Technical Field

[0001] This application relates to a valve, and more particularly to a valve with means of resisting mud and sand abrasion and easy monitoring. Background Technology

[0002] Valves are an essential control component in pipelines transporting fluids. By opening or closing valves, the flow of fluid within the pipeline is controlled or stopped. In large-scale water diversion and irrigation projects, valves play an irreplaceable role in switching on and off.

[0003] Most rivers contain a large amount of silt. For example, in the section of the Yellow River below the Bapan Gorge, the Yellow River turns yellow due to the influx of the Huangshui River, and a large amount of silt accumulates with the rushing water. Although the Yellow River has a high silt content and appears yellowish, it contains relatively few large sand and gravel particles. Conversely, some rivers, such as the Yangtze River, also contain a considerable amount of sand and gravel. Therefore, in order to accommodate various water flows with high silt content for water diversion and irrigation, the valves used must take into account the damage that silt can cause to the valve's moving parts, especially the cleaning, maintenance, and upkeep of components such as valve cores, bearings, and seals. Summary of the Invention

[0004] The technical problem to be solved by this application is how to clean, maintain, and repair the mud and sand inside the moving parts of valves that operate in fluid working media with a high mud and sand content.

[0005] To address the aforementioned technical problems, this application provides a valve with anti-sludge abrasion measures and easy monitoring capabilities, comprising: a valve body having an inner cavity for the passage of a fluid working medium and an outer wall for connection to a pipeline, the outer wall of the valve body having at least one support seat arranged radially along the valve body; a valve core housed in the inner cavity of the valve body, including a valve shaft rotatably connected to the outer wall of the valve body, the valve shaft being sleeved in the support seat of the valve body; a removable additional layer having a cylindrical shape, rotatably sleeved on the valve shaft and detachably fixed relative to the outer wall of the valve body to form a gap between the inner circumferential surface of the removable additional layer and the outer circumferential surface of the valve shaft; and a cleaning assembly including a water supply hole and a drain hole disposed within the valve body and the removable additional layer, the water supply hole introducing cleaning water from a clean water source into the gap, and the drain hole discharging the cleaning water in the gap to the outside of the valve body. As the cleaning water flows through the gap, it carries away sludge and sand, thus achieving flushing.

[0006] According to an embodiment of this application, at least one support seat may be a pair of bearing seats symmetrically arranged along the radial direction of the valve body, and the valve shaft of the valve core is a pair of valve shafts symmetrically arranged along the radial direction, and the pair of valve shafts are correspondingly arranged in the bearing seats.

[0007] According to embodiments of this application, the valve may further include a packing seal disposed between the valve shaft and a removable additional layer, wherein the packing seal includes an asbestos rope wound around the valve shaft and a gland that compresses the asbestos rope.

[0008] According to embodiments of this application, the water supply holes may include a plurality of holes arranged along the axial direction of the valve shaft, and the drain holes may include a number corresponding to the water supply holes. Preferably, the water supply holes and drain holes are arranged symmetrically with respect to the valve shaft. Preferably, the valve may also include O-rings disposed between the water supply holes and surrounding the valve shaft to space each water supply hole and corresponding drain hole in the axial direction of the valve shaft, so that the corresponding water supply holes and drain holes form separate flushing circuits through the gaps.

[0009] According to embodiments of this application, the valve may further include an annular groove disposed on the inner surface of the removable additional layer and in fluid communication with the water supply hole and the drain hole. Preferably, the cross-sectional shape of the annular groove includes a rectangular, a regular trapezoidal, or an inverted trapezoidal shape.

[0010] According to embodiments of this application, the valve may further include one or more water collection troughs disposed on the outer peripheral surface of the removable additional layer to form a cavity between the inner wall of the valve body and the outer wall of the removable additional layer. The cavity is connected to a clean water source fluid through a water supply hole on the valve body and discharges cleaning water to the outside through a drain hole on the valve body. The cavity is also connected to a gap fluid through a water supply hole on the removable additional layer and leads the cleaning water in the gap to the drain hole on the valve body through the drain hole on the removable additional layer.

[0011] According to an embodiment of this application, at one end of the water collection tank of the detachable additional layer, a water supply diversion hole can be provided on the side of the outer wall of the detachable additional layer near the water supply hole. One end of the water supply hole is fluidly connected to the water collection tank, and the other end is fluidly connected to the gap. Furthermore, on the side of the outer wall of the detachable additional layer near the drain hole, a drain diversion hole can be provided. The cleaning water flows through the water supply hole and then through the water collection tank, and then through the water supply diversion hole into the gap. The cleaning water in the gap is then introduced into the water collection tank through the drain diversion hole and discharged through the drain hole.

[0012] According to an embodiment of this application, preferably, the valve may further include a pipe and valve disposed between the clean water source and each water supply hole, and a pipe and valve disposed between each drain hole and the outside.

[0013] According to embodiments of this application, the valve may further include a bearing bush disposed between the valve shaft and the removable additional layer to form a bearing-mate with a portion of the outer peripheral surface of the valve shaft. Preferably, the bearing bush may include a plurality of sand-collecting holes communicating with interstitial fluid.

[0014] According to embodiments of this application, the valve may be a ball valve or a butterfly valve.

[0015] Compared with the prior art, the technical solution of this application can achieve at least the following beneficial technical effects:

[0016] 1. The valve with anti-sand abrasion means and easy monitoring according to the embodiments of this application includes a detachable additional layer that is detachably connected to the valve body. Therefore, the detachable additional layer can be removed for cleaning or replacement during maintenance as a vulnerable part, thereby increasing the service life of the valve accordingly.

[0017] 2. The valve according to an embodiment of this application, which has anti-sludge abrasion measures and is easy to monitor, includes a water supply hole and a drain hole provided on the valve body and a removable additional layer, both of which are connected to the gap between the removable additional layer and the valve shaft. When the water supply hole is connected to a clean water source, clean water flow can flush any flow-through components in between. Thus, under the protection of periodic flushing, the gap between moving and stationary parts is cleaned, improving and optimizing the working environment of the valve, thereby increasing the service life of the valve.

[0018] 3. When multiple water supply holes and multiple drain holes are set opposite each other, annular seals are provided between each water supply hole and between each drain hole for isolation. Therefore, the corresponding water supply holes and drain holes can be connected to the gaps individually and flushed, i.e., staged flushing, which can save energy and clean water sources, and gradually maintain and service the valves. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a butterfly valve in the prior art;

[0020] Figure 2 This is a schematic diagram of the valve in this application that has anti-sludge abrasion measures and is easy to monitor;

[0021] Figure 3 This is a partial schematic diagram of the installation of the valve with anti-sludge abrasion measures and easy monitoring as described in this application, provided by the support base.

[0022] Figure 4 This is a schematic diagram of the cleaning assembly and O-ring of the valve with anti-sludge abrasion measures and easy monitoring as described in this application;

[0023] Figure 5 This is a schematic diagram of the annular groove in the removable additional layer of the valve with anti-sludge abrasion measures and easy monitoring as described in this application;

[0024] Figure 6 This is a schematic diagram of the water collection tank in the removable additional layer of the valve with anti-sludge abrasion measures and easy monitoring as described in this application;

[0025] Figure 7 This is a schematic diagram of the bearing bush and part of the removable additional layer of the valve with anti-sludge abrasion measures and easy monitoring, as described in this application; and

[0026] Figure 8 This is a cross-sectional view of the overall structure of the valve with anti-sludge abrasion measures and easy monitoring features of this application. Detailed Implementation

[0027] The present application is further illustrated below by way of embodiments, but this does not limit the present application to the scope of the embodiments described.

[0028] In the description of this application, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application. Furthermore, in the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] Reference Figure 1 , Figure 1 This is a schematic diagram of a butterfly valve in the prior art, such as... Figure 1 As shown, the fluid working medium along Figure 1 The direction of arrow A is from one end of pipe 100 through the butterfly valve to the other end of pipe 100. The valve core 20 in the butterfly valve can rotate around the valve shaft 21 to open and close pipe 100. Because the working fluid medium contains a large amount of silt, silt often accumulates at both ends where the valve core 20 and valve shaft 21 are connected. If it is not cleaned in time, the accumulated silt will continue to enter the valve body 10 of the butterfly valve, and the valve shaft 21 will be worn, affecting the normal operation of the butterfly valve.

[0030] Reference Figures 2-8To address the aforementioned problems, this application discloses a valve with anti-sludge abrasion mechanisms and ease of monitoring, comprising: a valve body 10 having an inner cavity for the passage of a fluid working medium and an outer wall for connection with a pipeline 100, wherein the outer wall of the valve body 10 has at least one support seat 101 arranged radially along the valve body 10; a valve core 20 housed in the inner cavity of the valve body 10, including a valve shaft 21 rotatably connected to the outer wall of the valve body 10, the valve shaft 21 being sleeved in the support seat 101 of the valve body 10; and a detachable additional layer 30 having a cylindrical shape and rotatably sleeved on the... A valve shaft 21 is detachably fixed to the valve body 10 relative to the outer wall of the valve body 10 to form a gap 22 between the inner circumferential surface of the detachable additional layer 30 and the outer circumferential surface of the valve shaft 21; and a cleaning assembly including a water supply hole 41 and a drain hole 42 disposed in the valve body 10 and the detachable additional layer 30, wherein the water supply hole 41 introduces cleaning water from a clean water source into the gap 22, and the drain hole 42 discharges the cleaning water in the gap 22 to the outside of the valve body 10, wherein the cleaning water carries away the mud and sand in the gap 22 to achieve rinsing.

[0031] Specifically, such as Figure 2 As shown, the detachable additional layer 30 is a replaceable component fitted onto the outer wall of the valve shaft 21 within the valve body 10. The detachable additional layer 30 is fixed to and detached from both the valve body 10 and the valve shaft 21 via locking devices (not shown in the figure). The locking devices involved in this application can be nut locking devices. The detachable additional layer 30 allows for manual installation and / or removal, enabling internal repair and / or cleaning of the valve body 10. This significantly improves upon the cumbersome and complex process of complete disassembly and / or installation of the valve body in the prior art when internal damage occurs. Furthermore, in cases where the valve body 10 is damaged, the original valve body 10 may need to be replaced directly, resulting in a large amount of consumables. In this application, as described above, the removable additional layer 30 is a replaceable part in the valve body 10. Therefore, there is no need to disassemble, repair and / or clean the entire valve body 10. In the event of the above problems, the removable additional layer 30 can be separated from the valve body 10 by means of the locking member, and the internal repair and / or cleaning of the valve body 10 can be carried out immediately.

[0032] like Figure 3 As shown, in a preferred embodiment of this application, the at least one support seat 101 is a pair of bearing seats symmetrically arranged along the radial direction of the valve body 10, the valve shaft 21 of the valve core 20 is a pair of valve shafts 21' symmetrically arranged along the radial direction, and the pair of valve shafts 21' are correspondingly arranged in the bearing seats.

[0033] In a preferred embodiment of this application, the water supply holes 41 may include a plurality of holes arranged along the axial direction of the valve shaft 21, and the drain holes 42 include a number corresponding to the water supply holes 41, wherein the water supply holes 41 and the drain holes 42 are symmetrically arranged with respect to the valve shaft 21. For ease of discussion, this application refers to each water supply hole 41 and drain hole 42 symmetrically arranged with respect to the valve shaft 21 as a set of cleaning components. (Refer to...) Figure 4 For ease of understanding, Figure 4 A set of cleaning components disposed in the valve body 10 and the removable additional layer 30 is shown only as an example.

[0034] In a preferred embodiment of this application, four sets of cleaning components may be provided along the axial direction of the valve shaft 21. Depending on the actual accumulation of silt in the valve body 10, these four sets of cleaning components may be arranged at equal intervals along the axial direction of the valve shaft 21 or they may be arranged at non-equal intervals.

[0035] like Figure 4 As shown, in a preferred embodiment of this application, an O-ring seal 24 is further provided between the water supply holes 41 and surrounding the valve shaft 21 to space each water supply hole 41 and the corresponding drain hole 42 in the axial direction of the valve shaft 21, so that the corresponding water supply holes 41 and drain holes 42 form a separate flushing circuit through the gap 22. That is, the O-ring seal 24 makes each set of cleaning components form a separate flushing circuit.

[0036] In a preferred embodiment of this application, the system further includes pipes and valves disposed between the clean water source and each water supply hole 41, and pipes and valves disposed between each drain hole 42 and the outside.

[0037] Specifically, the user can open any one or more of the pipes and valves located between the clean water source and each water supply hole 41, depending on the accumulation of sediment inside the valve body 10, to flush the sediment accumulated in the valve body 10. Furthermore, the user can also open any one or more of the pipes and valves located between each drain hole 42 and the outside, depending on the opening status of the pipes and valves located between the clean water source and each water supply hole 41, thereby draining the cleaning water mixed with sediment from the valve body 10. Those skilled in the art will understand that since liquid is constantly flowing in the flushing circuit formed by the gaps and cleaning components within the valve body 10, it is also possible to open only any one or more of the pipes and valves located between each drain hole 42 and the outside, as needed, to drain the cleaning water mixed with sediment from the valve body 10, thereby achieving the cleaning of the inside of the valve body 10.

[0038] like Figure 5As shown, in a preferred embodiment of this application, an annular groove 25 is further provided on the inner surface of the removable additional layer 30 and is in fluid communication with the water supply hole 41 and the drain hole 42. The annular groove 25 can be used to deposit silt and sand solid particles (such as sediment) in the fluid working medium that enters the valve body 10 through the gap 22. Figure 5 The black dots in the image exemplify some of the silt and sand solid particles deposited in the annular groove 25. The cross-sectional shape of the annular groove 25 may include a rectangular, trapezoidal, or inverted trapezoidal shape. In this application, the term "trapezoidal" refers to a cross-section where the opening side of the annular groove 25 facing the valve shaft 21 is the short side, and the bottom of the annular groove 25 opposite the opening side is the long side; the term "inverted trapezoidal" refers to a cross-section where the opening side of the annular groove 25 facing the valve shaft 21 is the long side, and the bottom of the annular groove 25 opposite the opening side is the short side. Preferably, in this application, the annular groove 25 has a trapezoidal cross-section, whereby, according to fluid dynamics principles, when cleaning water enters the annular groove 25, it is easier to form a fluid vortex flowing along the inner wall of the annular groove 25, which is more conducive to flushing the silt and sand solid particles accumulated in the annular groove 25 of the valve body 10. For ease of understanding, Figure 5 The water supply hole 41, the drain hole 42, and the annular groove 25 are all shown in dashed lines.

[0039] Specifically, such as Figure 5 As shown, when the fluid working medium flows along Figure 5 When the water flows into the valve body 10 in the direction indicated by arrow B, the sediment will be deposited in the annular groove 25. Since the water supply hole 41 and the drain hole 42 are fluidly connected to the annular groove 25, when cleaning water flows in, the water supply hole 41 can introduce the cleaning water into the annular groove 25, allowing the cleaning water to flow along... Figure 5 The water flows toward the drain hole 42 in the direction indicated by the middle arrows C and D, so that the washing water mixed with mud and sand is discharged through the drain hole 42, thereby cleaning the mud and sand that has entered the valve body 10.

[0040] like Figure 6 As shown, in a preferred embodiment of this application, one or more water collection tanks 26 are provided on the outer peripheral surface of the removable additional layer 30 to form a cavity 27 between the inner wall of the valve body 10 and the outer wall of the removable additional layer 30. The cavity 27 is connected to the clean water source fluid through the water supply hole 41 on the valve body 10 and discharges the cleaning water to the outside through the drain hole 42 on the valve body 10.

[0041] Specifically, such as Figure 6As shown, in a preferred embodiment of this application, at one end of the water collection tank 26 of the removable additional layer 30, a water supply diversion hole 41' is provided on the side of the removable additional layer 30 near the water supply hole 41, with one end fluidly connected to the water collection tank 26 and the other end fluidly connected to the gap 22. Furthermore, on the side of the removable additional layer 30 near the drain hole 42, a drain diversion hole 42' is provided, with one end fluidly connected to the water collection tank 26 and the other end fluidly connected to the gap 22. Cleaning water flows through the water supply hole 41 into the water collection tank 26 and then into the gap 22 through the water supply diversion hole 41'. The cleaning water in the gap 22 is then introduced into the water collection tank 26 through the drain diversion hole 42' and discharged through the drain hole 42.

[0042] In a preferred embodiment of this application, a bearing bush 50 is further provided between the valve shaft 21 and the removable additional layer 30 to form a bearing-fitting structure with a portion of the outer peripheral surface of the valve shaft 21. The bearing bush 50 includes a plurality of sand accumulation holes 51 that are in fluid communication with the gap 22.

[0043] In a preferred embodiment of this application, the valve is a ball valve or a butterfly valve.

[0044] The working principle of the valve involved in this application, which has anti-sludge abrasion means and is easy to monitor, is as follows: when the working medium of fluid mixed with sludge is first introduced into the valve body, the valve of the clean water source is opened, so that the cleaning water can flow through the water supply hole into the annular groove and water collection tank of the detachable additional layer, flow through the gap, and then be discharged through the drain hole, thereby cleaning the sludge deposits accumulated in the valve.

[0045] The beneficial effects that this application can achieve are as follows:

[0046] 1. The valve with anti-sand abrasion means and easy monitoring according to the embodiments of this application includes a detachable additional layer that is detachably connected to the valve body. Therefore, the detachable additional layer can be removed for cleaning or replacement during maintenance as a vulnerable part, thereby increasing the service life of the valve accordingly.

[0047] 2. The valve according to an embodiment of this application, which has anti-sludge abrasion measures and is easy to monitor, includes a water supply hole and a drain hole provided on the valve body and a removable additional layer, both of which are connected to the gap between the removable additional layer and the valve shaft. When the water supply hole is connected to a clean water source, clean water flow can flush any flow-through components in between. Thus, under the protection of periodic flushing, the gap between moving and stationary parts is cleaned, improving and optimizing the working environment of the valve, thereby increasing the service life of the valve.

[0048] 3. When multiple water supply holes and multiple drain holes are set opposite each other, annular seals are provided between each water supply hole and between each drain hole for isolation. Therefore, the corresponding water supply holes and drain holes can be connected to the gaps individually and flushed, i.e., staged flushing, which can save energy and clean water sources, and gradually maintain and service the valves.

[0049] While specific embodiments of this application have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this application is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this application, and all such changes and modifications fall within the scope of protection of this application.

Claims

1. A valve with anti-sludge abrasion means and easy monitoring, comprising: a valve body (10) having an inner cavity for the passage of a fluid working medium and an outer wall for connection with a pipe (100), wherein the outer wall of the valve body (10) has at least one support seat (101) arranged radially along the valve body (10); a valve core (20) housed in the inner cavity of the valve body (10) and including a valve shaft (21) rotatably connected to the outer wall of the valve body (10), the valve shaft (21) being sleeved in the support seat (101) of the valve body (10); and a removable additional layer (30) having a cylindrical shape. A rotatable sleeve is fitted onto the valve shaft (21) and detachably fixed relative to the outer wall of the valve body (10) to form a gap (22) between the inner circumferential surface of the detachable additional layer (30) and the outer circumferential surface of the valve shaft (21); and a cleaning assembly including a water supply hole (41) and a drain hole (42) disposed within the valve body (10) and the detachable additional layer (30), wherein the water supply hole (41) introduces cleaning water from a clean water source into the gap (22), and the drain hole (42) discharges the cleaning water in the gap (22) out of the valve body (10), wherein, As the cleaning water flows through the gap (22), it carries away the mud and sand inside to achieve rinsing. It also includes one or more water collection tanks (26) disposed on the outer peripheral surface of the removable additional layer (30) to form a cavity (27) between the inner wall of the valve body (10) and the outer wall of the removable additional layer (30). The cavity (27) is connected to the clean water source fluid through a water supply hole (41) on the valve body (10) and discharges the cleaning water to the outside through a drain hole (42) on the valve body (10). At one end of the water collection tank (26) of the removable additional layer (30), on the side of the removable additional layer (30) near the water supply hole (41), a... There is a water supply diversion hole (41') with one end connected to the water collection tank (26) and the other end connected to the gap (22). Furthermore, on the side of the detachable additional layer (30) near the drain hole (42), there is also a drain diversion hole (42') with one end connected to the water collection tank (26) and the other end connected to the gap (22). The cleaning water flows through the water supply hole (41) and then through the water supply diversion hole (41') into the gap (22). The cleaning water in the gap (22) is then introduced into the water collection tank (26) through the drain diversion hole (42') and discharged through the drain hole (42).

2. The valve according to claim 1, characterized in that, The at least one support seat (101) is a pair of bearing seats symmetrically arranged along the radial direction of the valve body (10), the valve shaft (21) of the valve core (20) is a pair of valve shafts (21) symmetrically arranged along the radial direction, and the pair of valve shafts (21) are correspondingly arranged in the bearing seats.

3. The valve according to claim 1, characterized in that, The water supply holes (41) include a plurality of holes arranged along the axial direction of the valve shaft (21), and the drain holes (42) include a number corresponding to the water supply holes (41). The water supply holes (41) and the drain holes (42) are arranged symmetrically with respect to the valve shaft (21).

4. The valve according to claim 3, characterized in that, It also includes an O-ring seal (24) disposed between the water supply holes (41) and surrounding the valve shaft (21) to space each water supply hole (41) and the corresponding drain hole (42) in the axial direction of the valve shaft (21), so that the corresponding water supply holes (41) and drain holes (42) form a separate flushing circuit through the gap (22).

5. The valve according to claim 4, characterized in that, It also includes pipes and valves installed between the clean water source and each water supply hole (41), as well as pipes and valves installed between each drain hole (42) and the outside.

6. The valve according to claim 1, characterized in that, It also includes an annular groove (25) disposed on the inner surface of the removable additional layer (30) and in fluid communication with the water supply hole (41) and the drain hole (42), wherein the cross-sectional shape of the annular groove (25) includes a rectangular, a trapezoidal or an inverted trapezoidal shape.

7. The valve according to claim 1, characterized in that, It also includes a bearing bush (50) disposed between the valve shaft (21) and the removable additional layer (30) to form a bearing-fitting part of the outer peripheral surface of the valve shaft (21), the bearing bush (50) including a plurality of sand-collecting holes (51) in fluid communication with the gap (22).

8. The valve according to any one of claims 1-7, characterized in that, The valve is either a ball valve or a butterfly valve.

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