Plug valve with impurity treatment function

Abstract

The utility model belongs to the technical field of valves, and particularly relates to a plug valve with an impurity treatment function. Comprising a valve body with four water receiving channels, and further comprises an inclined cock which is rotatably connected to the middle of the valve body in the vertical direction and provided with a water flow channel communicated with the water receiving channels; the centrifugal collecting mechanism comprises spiral flow deflectors arranged in the water flow channel and an impurity collecting box detachably connected to the bottom of the plug cock, and the spiral flow deflectors are evenly distributed on the water flow channel of the inclined plug cock in a spiral shape around the transverse center axis of the valve body; and the impurity collecting box is positioned below the inclined cock and is communicated with the water flow channel. The utility model aims to quickly separate impurities in water flow through the centrifugal collecting mechanism and collect the impurities together, so that the filtering efficiency of the plug valve is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of valves, in particular to a plug valve with an impurity processing function. Background Art

[0002] As a common type of valve, plug valve is widely used in many fields such as industrial production and daily water use. With its simple structure and convenient operation, it can effectively control the flow and cutoff of fluids, providing key guarantees for the stable operation of various systems. For example, in industrial pipeline systems, it can accurately control the flow direction and flow rate of fluids to ensure smooth production processes; in household water supply systems, it can also easily realize the opening and closing of water flow.

[0003] However, in actual application, the plug valve in the prior art has significant deficiencies in filtering impurities. Taking the ordinary four-way ferrule plug valve as an example, when water flows through, impurities such as mud, particles, etc. contained in the water are easily accumulated in the valve body, causing the water flow channel to narrow, which not only reduces the water flow transmission efficiency, but also may cause valve blockage, affecting the normal operation of the entire system. Traditional impurity filtering methods often rely on simple filter screen structures, which have low filtering efficiency and are difficult to fully and efficiently separate impurities from the water flow. Moreover, these filters are difficult to clean after impurities accumulate, requiring a lot of manpower and time costs, which seriously restricts the performance and service life of the plug valve. Utility Model Content

[0004] The purpose of the utility model is to provide a plug valve with an impurity processing function, which can quickly separate impurities in a water flow through a centrifugal collection mechanism and collect them together, thereby improving the filtering efficiency of the plug valve and alleviating the problems mentioned in the above background technology.

[0005] The purpose of the utility model is achieved in this way. A plug valve with an impurity treatment function includes a valve body with four water receiving channels, and also includes:

[0006] An oblique cock is rotatably connected to the middle of the valve body in a vertical direction, and the oblique cock has a water flow channel connected to the water receiving channel;

[0007] The centrifugal collection mechanism includes a spiral guide plate arranged in the water flow channel and an impurity collection box detachably connected to the bottom of the plug. The spiral guide plate is evenly distributed in a spiral shape on the water flow channel of the inclined plug around the transverse center axis of the valve body. The impurity collection box is located below the inclined plug and is connected to the water flow channel.

[0008] The utility model is further configured that the impurity collection box comprises:

[0009] A connecting portion, disposed in the valve body and connected to the bottom of the oblique cock;

[0010] The collecting part is in a trumpet-shaped structure, and the end with a larger opening of the collecting part is connected to the lower part of the connecting part.

[0011] The utility model is further configured that the collecting portion is provided with an impurity filter for preventing fine impurities from flowing around in the box.

[0012] The utility model is further configured that the connecting portion is threadedly connected to the water flow channel.

[0013] The utility model is further configured that the spiral guide vane is a variable pitch structure, and the pitch near the inlet end of the water flow channel is greater than the pitch near the outlet end.

[0014] The utility model is further configured that a plurality of protrusions are provided on the surface of the spiral guide vane, and the protrusions are distributed along the spiral direction of the spiral guide vane.

[0015] By adopting the above technical solution, the utility model can obtain the following beneficial effects:

[0016] 1. By setting a spiral guide vane in the water flow channel, when the water flows through, the spiral guide vane generates centrifugal force to throw impurities in the water to the inner wall of the water flow channel. In combination with the impurity collection box, the impurities can be effectively separated, solving the problem of low impurity filtration efficiency of the existing plug valve and improving the impurity filtration performance.

[0017] 2. The impurity collection box is detachably connected to the bottom of the stopcock, and the collecting part is trumpet-shaped, with the end with a larger opening connected to the bottom of the connecting part. This design facilitates the collection of impurities that fall from the inner wall of the water flow channel and are directly thrown off by centrifugal force, solving the problem of impurity accumulation that is difficult to clean, and improving the convenience of impurity collection and cleaning.

[0018] 3. The spiral guide vane adopts a variable pitch structure. The pitch is large near the inlet end of the water flow channel, which allows the water to enter smoothly. The pitch is small near the outlet end, which enhances the centrifugal force to separate impurities, solves the problem of turbulence that may occur in the water flow during the diversion process, optimizes the diversion effect, and improves the impurity separation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model;

[0020] Figure 2 This utility model Figure 1 Schematic diagram of the cross-sectional structure at AA in the middle;

[0021] Figure 3 This utility model Figure 1 Schematic diagram of the enlarged structure of part A.

[0022] The reference numerals in the figure are: 1. valve body; 2. water receiving channel; 3. oblique plug; 4. water flow channel; 5. centrifugal collecting mechanism; 50. spiral guide vane; 51. impurity collecting box; 510. connecting part; 511. collecting part; 6. impurity filter; 7. protrusion. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings. Figure 1-3 :

[0024] Embodiment 1:

[0025] This embodiment provides a plug valve with an impurity treatment function, including a valve body 1 having four water receiving channels 2, and further comprising:

[0026] An oblique cock 3 is rotatably connected to the middle of the valve body 1 in the vertical direction, and the oblique cock 3 has a water flow channel 4 connected to the water receiving channel 2;

[0027] The centrifugal collecting mechanism 5 includes a spiral guide vane 50 arranged in the water flow channel 4 and an impurity collection box 51 detachably connected to the bottom of the plug. The spiral guide vane 50 is evenly distributed in a spiral shape on the water flow channel 4 of the inclined plug 3 around the transverse center axis of the valve body 1, and the impurity collection box 51 is located below the inclined plug 3 and is connected to the water flow channel 4.

[0028] The oblique cock 3 is used to control the on-off and flow direction switching of water flow between the four water receiving channels 2 of the valve body 1, and at the same time provides an installation basis for the centrifugal collection mechanism 5, guiding the water flow through the spiral guide vane 50 to achieve impurity separation. The main body of the oblique cock 3 is a block structure, and a water flow channel 4 connected to the water receiving channel 2 is provided inside, and the spiral guide vane 50 is adapted to be installed in the water flow channel 4. The top or side thereof may be provided with an operating rod connection portion 510, which is convenient for an external operating device to realize rotation control. The oblique cock 3 is inclined relative to the water receiving channel 2 as a whole inside the valve body 1. This unique shape enables the water flow channel 4 to dock with the water receiving channel 2 of the valve body 1 at a specific angle, optimizes the direction of water flow, and reduces water flow resistance. The water flow channel 4 is designed to have a specific direction inside the cock according to functional requirements, and is closely matched with the spiral guide vane 50 to ensure that the water flow can be fully affected by the spiral guide vane 50. The oblique cock 3 can be rotatably connected to the middle part of the valve body 1 along the vertical direction through a rotating connector such as a bearing or a sleeve.

[0029] The spiral guide vane 50 uses a spiral structure to guide the water flow to make a spiral motion in the water flow channel 4, generating centrifugal force to throw impurities in the water flow toward the inner wall of the water flow channel 4. The spiral guide vane 50 is evenly distributed in a spiral shape on the water flow channel 4 of the inclined cock 3 around the transverse central axis of the valve body 1. The spiral guide vane 50 can be tightly connected to the water flow channel 4 of the inclined cock 3 by welding, riveting or high-strength bolt and nut connection.

[0030] The impurity collection box 51 is responsible for collecting impurities that slide down from the inner wall of the water flow channel 4 and are directly thrown off by centrifugal force, preventing the impurities from accumulating in the valve body 1, thereby preventing them from interfering with the normal operation of the valve and affecting the operation of the entire fluid system. The impurity collection box 51 is located below the inclined cock 3 and is closely connected to the water flow channel 4, ensuring that the impurities can smoothly enter the collection box from the water flow channel 4.

[0031] Embodiment 2:

[0032] This embodiment provides a plug valve with an impurity handling function, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0033] The impurity collecting box 51 comprises:

[0034] The connecting portion 510 is disposed in the valve body 1 and connected to the bottom of the oblique cock 3;

[0035] The collecting portion 511 is in a trumpet-shaped structure, and the end of the collecting portion 511 with a larger opening is connected to the lower side of the connecting portion 510 .

[0036] The connecting part 510 realizes the connection between the impurity collecting box 51 and the bottom of the inclined stopcock 3 and the water flow channel 4, and constructs a passage for impurities to enter the collecting part 511 from the water flow channel 4. The connecting part 510 is generally a tubular structure, and the interior is hollow to form an impurity channel. One end of the connecting part 510 is tightly connected to the bottom of the inclined stopcock 3, and the other end is connected to the water flow channel 4. It is located between the inclined stopcock 3 and the collecting part 511, and plays a key connecting role between the upper and lower parts.

[0037] The collecting part 511 is used to accommodate and store impurities separated from the water flow channel 4 and entering the connecting part 510, so as to prevent the impurities from spreading around in the valve body 1 and realize the centralized collection of impurities. The main body of the collecting part 511 is a cavity structure, and the internal space is used to store impurities. The top opening of the collecting part 511 is connected to the bottom of the connecting part 510, and the bottom may be designed with a structure that is convenient for cleaning impurities, such as a detachable bottom cover. The collecting part 511 is horn-shaped as a whole, and the end with a large opening is connected to the connecting part 510 upward. This shape increases the impurity collection range and makes it easier for impurities falling from different directions to enter the collecting part 511. At the same time, the horn-shaped structure is conducive to the impurities being concentrated to the bottom of the collecting part 511 under the action of gravity, which is convenient for storage and cleaning. The collecting part 511 can be connected to the connecting part 510 by welding, hot melt connection or snap connection.

[0038] When water flows through the water flow channel 4 of the inclined cock 3 , the spiral guide plate 50 generates centrifugal force to throw impurities toward the inner wall of the channel and slide down. Some impurities are directly thrown down and enter the collecting part 511 through the connecting part 510 .

[0039] Embodiment 3:

[0040] This embodiment provides a plug valve with an impurity handling function, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0041] The collecting portion 511 is provided with an impurity filter 6 for preventing fine impurities from flowing around in the box.

[0042] The impurity filter 6 prevents the fine impurities collected in the impurity collection box 51 from flowing around when the water flow fluctuates or the valve is operated, and prevents them from being mixed into the water flow again, further improving the purity of the outflowing water flow. The shape of the impurity filter 6 is adapted to the internal space of the collection part 511. Common ones are round sheets or special-shaped sheets with a shape similar to the collection part 511. They are installed inside the collection part 511 to ensure that the impurities are filtered by the filter before flowing out of the collection box. The impurity filter 6 can be fixed inside the collection part 511 by welding, riveting or using a clamp.

[0043] Embodiment 4:

[0044] This embodiment provides a plug valve with an impurity handling function, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0045] The connection portion 510 is threadedly connected to the water flow channel 4 .

[0046] During the installation process of the threaded connection, it is only necessary to align the threads of the connection part 510 with the corresponding threads of the water flow channel 4, and then the connection can be achieved by rotating, without the need for complex tools and professional skills. When disassembling, the two can be easily separated by reverse rotation, which is convenient and quick, greatly improving the efficiency of installation and maintenance. At the same time, in the threaded connection, the sealing of the connection part 510 can be further enhanced by using auxiliary sealing materials such as sealing washers and sealants. When the threads are tightened, the sealing material will be squeezed between the connection surfaces to fill any gaps that may exist, thereby effectively preventing water and impurities from leaking from the connection part 510, ensuring the sealing and stability of the entire system.

[0047] Embodiment 5:

[0048] This embodiment provides a plug valve with an impurity handling function, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0049] The spiral guide vane 50 is a variable pitch structure, and the pitch near the inlet end of the water flow channel 4 is greater than the pitch near the outlet end.

[0050] At the inlet end of the water flow channel 4, the water flow speed is usually faster, and the larger pitch can make the spiral guide vane 50 have a relatively small obstruction to the water flow, avoiding water flow turbulence or large pressure loss due to excessive obstruction. As the water flows toward the outlet end, the pitch gradually becomes smaller, and the guiding effect of the spiral guide vane 50 on the water flow gradually increases, causing the water flow speed to gradually decrease. This gradual change helps the water flow to flow more smoothly in the channel and reduce the impact and fluctuation of the water flow. At the same time, the pitch is large near the inlet end, and the water flow can quickly enter and begin to form a certain rotation trend. As it flows toward the outlet end, the pitch becomes smaller, and the spiral guide vane 50 gradually increases the rotation speed of the water flow, and the centrifugal force gradually increases. This change makes it easier for impurities in the water flow to be thrown to the channel wall or the impurity collection area under the action of centrifugal force, thereby improving the separation effect of impurities and water flow and improving the impurity collection efficiency.

[0051] Embodiment 6:

[0052] This embodiment provides a plug valve with an impurity handling function, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0053] A plurality of protrusions 7 are disposed on the surface of the spiral guide vane 50 , and the protrusions 7 are distributed along the spiral direction of the spiral guide vane 50 .

[0054] The protrusion 7 can destroy the boundary layer of the water flow, causing the water flow to produce more small-scale eddies and turbulence, and increase the mixing degree of the water flow. This helps to better mix the parts of the water flow with different speeds and properties, making the state of the water flow more uniform, which is very beneficial for some application scenarios that require uniform distribution of water flow or full mixing. At the same time, the protrusion 7 causes the water flow to produce a more complex flow state locally, forming some local low-speed areas and eddies. Impurities are more easily separated from the mainstream in these areas, and precipitate or gather in the area around or near the protrusion 7, thereby accelerating the separation process of impurities and water flow, which is beneficial to the subsequent collection and treatment of impurities.

[0055] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A plug valve with an impurity handling function, comprising a valve body (1) having four water receiving channels (2), characterized in that: Also includes: An oblique cock (3) is rotatably connected to the middle of the valve body (1) in the vertical direction, and the oblique cock (3) has a water flow channel (4) connected to the water receiving channel (2); The centrifugal collection mechanism (5) comprises a spiral guide plate (50) arranged in the water flow channel (4) and an impurity collection box (51) detachably connected to the bottom of the plug, wherein the spiral guide plate (50) is evenly distributed in a spiral shape on the water flow channel (4) of the inclined plug (3) around the transverse central axis of the valve body (1), and the impurity collection box (51) is located below the inclined plug (3) and is connected to the water flow channel (4).

2. A plug valve with impurity handling function according to claim 1, characterized in that: The impurity collection box (51) comprises: A connecting portion (510) is disposed in the valve body (1) and connected to the bottom of the oblique cock (3); The collecting portion (511) is in a trumpet-shaped structure, and the end with a larger opening of the collecting portion (511) is connected to the lower side of the connecting portion (510).

3. A plug valve with impurity handling function according to claim 2, characterized in that: The collecting portion (511) is provided with an impurity filter (6) for preventing fine impurities from flowing around in the box.

4. A plug valve with impurity handling function according to claim 2, characterized in that: The connection portion (510) is threadedly connected to the water flow channel (4).

5. The plug valve with impurity handling function according to claim 1, characterized in that: The spiral guide blade (50) is a variable pitch structure, and the pitch close to the inlet end of the water flow channel (4) is greater than the pitch close to the outlet end.

6. The plug valve with impurity handling function according to claim 1, characterized in that: A plurality of protrusions (7) are provided on the surface of the spiral guide vane (50), and the protrusions (7) are distributed along the spiral direction of the spiral guide vane (50).

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