A self-cleaning valve

Abstract

The present invention discloses a self-cleaning valve, which includes a main body assembly and a cleaning assembly. The cleaning assembly includes a cleaning element. The cleaning element is arranged on the inner wall of the housing and is located in the space enclosed by the outer wall of the housing and the valve core. The cleaning element has a blowing hole, and the blowing hole is communicated with an external cleaning medium source. The valve core rotates in the housing so that the valve core hole can be communicated with the communication port to form a flow passage. A sealing element is arranged between the valve core hole and the communication port. When the valve core rotates to the valve closed state, the sealing element can ensure the sealing performance between the valve core and the housing. At the same time, a cleaning element is arranged between the housing and the valve core. The cleaning element has a blowing hole. The cleaning medium is conveyed to the cleaning element, and the cleaning element uses the blowing hole to spray the cleaning medium onto the valve core, the sealing element, the inner wall of the housing, etc. to achieve the cleaning purpose. The cleaning effect can also be enhanced by controlling the pressure of the cleaning medium to adapt to different valve cleaning requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of valves and their peripheral supporting facilities, in particular to a self-cleaning valve. Background Art

[0002] Valves are control components in fluid delivery systems, with functions such as shutoff, regulation, flow diversion, backflow prevention, pressure stabilization, flow diversion, or overflow and pressure relief. During the use of valves, they need to be cleaned and maintained.

[0003] In the past, the self-cleaning of the valve cavity was done by directly setting a water inlet and a water outlet on the upper wall and the lower wall of the cavity respectively. The flushing medium directly entered the cavity from the water inlet, and gravity drove the water to flow through the parts to be flushed and finally into the water outlet. The existing method can only make the flushing medium infiltrate the parts to be flushed in the valve cavity, and cannot ensure that all parts and parts to be flushed are infiltrated. The cleaning effect is poor, which affects the working efficiency of the valve.

[0004] Therefore, how to change the current situation of poor valve self-cleaning effect in the prior art has become an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of the present invention is to provide a self-cleaning valve to solve the problems existing in the above-mentioned prior art and enhance the valve cleaning effect.

[0006] To achieve the above object, the present invention provides the following solution: The present invention provides a self-cleaning valve, comprising:

[0007] A main body assembly, the main body assembly comprising a housing and a valve core, the valve core being rotatably disposed within the housing, the valve core having a valve core hole, the housing having a communication port, the valve core hole being capable of communicating with the communication port to form a flow passage, and a sealing element being disposed between the valve core hole and the communication port;

[0008] A cleaning assembly, wherein the cleaning assembly includes a cleaning element, which is arranged on the inner wall of the shell and located in the space enclosed by the shell and the outer wall of the valve core. The cleaning element has a blowing hole, which is connected to an external cleaning medium source, and the blowing hole is arranged toward the valve core and the sealing element; the shell is also provided with a guide port, and the cleaning medium can be guided out of the shell through the guide port.

[0009] Preferably, the cleaning element is annular, the cleaning element is coaxially arranged with the flow channel, and the blowing hole is arranged on the inner side wall of the cleaning element.

[0010] Preferably, there are a plurality of the blowing holes, and the blowing holes are evenly distributed circumferentially around the axis of the cleaning element.

[0011] Preferably, the number of the cleaning elements is two groups, and the two groups of cleaning elements are symmetrically arranged with the rotation axis of the valve core as the axis of symmetry.

[0012] Preferably, the cleaning element has at least one first cleaning surface inclined with an opening towards one side of the flow-through channel, and has at least one second cleaning surface inclined with an opening towards the other side of the flow-through channel. The first cleaning surface and the second cleaning surface are both provided with the jet holes.

[0013] Preferably, the cleaning element is of a split structure. The cleaning element includes a first cleaning ring and a second cleaning ring. The first cleaning ring and the second cleaning ring are both provided with the jet holes. The first cleaning ring, the second cleaning ring and the housing enclose a medium cavity, and the medium cavity is communicated with an external cleaning medium source. Sealing rings are arranged between any two of the first cleaning ring, the second cleaning ring and the housing.

[0014] Preferably, both the first cleaning ring and the second cleaning ring are positioned with the housing by using a spigot.

[0015] Preferably, the housing further has an inlet. Both the inlet and the outlet are communicated with the medium cavity. Drainage pipes are connected to both the inlet and the outlet, and control valves are arranged at both the inlet and the outlet.

[0016] Preferably, the main body assembly further includes a driver, a transmission shaft and a positioning shaft. The output end of the driver is in transmission connection with the transmission shaft. Both the transmission shaft and the positioning shaft are connected to the valve core and are located at both ends of the valve core. The rotation axis of the transmission shaft is perpendicular to the axis of the flow-through channel. A transmission bracket is arranged between the transmission shaft and the housing, and a positioning bracket is arranged between the positioning shaft and the housing.

[0017] Preferably, the housing includes a valve body and a valve seat. The valve body is connected to the valve seat. The valve seat has a connecting flange. The sealing element is arranged in the valve seat. The sealing element includes a plurality of sealing rings arranged along the axis direction of the flow-through channel. The valve core is of a spherical structure.

[0018] The present invention has achieved the following technical effects compared with the prior art:

[0019] In the self-cleaning valve of the present invention, the valve core rotates within the housing so that the valve core hole can be connected to the connecting port and form a flow channel. A sealing element is provided between the valve core hole and the connecting port. When the valve core rotates to the valve closed state, the sealing element can ensure the sealing between the valve core and the housing. At the same time, a cleaning element is provided between the housing and the valve core. The cleaning element has a spray hole. An external cleaning medium source delivers the cleaning medium to the cleaning element. The cleaning element uses the spray hole to spray the cleaning medium onto the valve core, the sealing element, and the inner wall of the housing to achieve the purpose of cleaning. The pressure of the cleaning medium can also be controlled to adapt to different valve cleaning requirements and enhance the cleaning effect. The cleaning medium can be discharged from the outlet to ensure the pressure balance inside the valve. The cleaning medium can be selected according to the actual cleaning needs. Liquid, gas, or a gas-liquid mixture can be selected to clean the inside of the valve, further improving the cleaning effect and improving the adaptability and working efficiency of the valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is an axonometric diagram of a self-cleaning valve disclosed in an embodiment of the present invention;

[0022] Figure 2 A schematic front view of a self-cleaning valve disclosed in an embodiment of the present invention;

[0023] Figure 3 for Figure 2 Schematic diagram of the cross-section structure along the AA direction;

[0024] Figure 4 for Figure 3 A magnified schematic diagram of point B in the middle;

[0025] Figure 5 A side view schematic diagram of a self-cleaning valve disclosed in an embodiment of the present invention;

[0026] Figure 6 A schematic top view of a self-cleaning valve disclosed in an embodiment of the present invention;

[0027] Figure 7 This is a schematic structural diagram of a cleaning element of a self-cleaning valve disclosed in an embodiment of the present invention.

[0028] Among them, 100 is the main component and 200 is the cleaning component;

[0029] 1 is the valve core, 2 is the flow channel, 3 is the cleaning element, 4 is the blowing hole, 5 is the guide outlet, 6 is the sealing element, 7 is the first cleaning surface, 8 is the second cleaning surface, 9 is the first cleaning ring, 10 is the second cleaning ring, 11 is the inlet, 12 is the drainage pipe, 13 is the control valve, 14 is the driver, 15 is the transmission shaft, 16 is the positioning shaft, 17 is the transmission bracket, 18 is the positioning bracket, 19 is the positioning back cover, 20 is the valve body, 21 is the valve seat, 22 is the connecting flange, and 23 is the medium chamber. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] The purpose of the present invention is to provide a self-cleaning valve to solve the problems existing in the above-mentioned prior art and enhance the valve cleaning effect.

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] The present invention provides a self-cleaning valve, including a main body component 100 and a cleaning component 200, wherein the main body component 100 includes a shell and a valve core 1, the valve core 1 is rotatably arranged in the shell, the valve core 1 has a valve core hole, the shell has a connecting port, the valve core hole can be connected to the connecting port and form a flow channel 2, and a sealing element 6 is arranged between the valve core hole and the connecting port; the cleaning component 200 includes a cleaning element 3, the cleaning element 3 is arranged on the inner wall of the shell, and is located in the space enclosed by the shell and the outer wall of the valve core 1, the cleaning element 3 has a blowing hole 4, the blowing hole 4 is connected to an external cleaning medium source, and the blowing hole 4 is arranged toward the valve core 1 and the sealing element 6; the shell is also provided with a guide port 5, and the cleaning medium can be guided out of the shell through the guide port 5.

[0034] In the self-cleaning valve of the present invention, a valve core 1 rotates within a housing so that the valve core hole can communicate with the communication port and form a flow channel 2. A sealing element 6 is provided between the valve core hole and the communication port. When the valve core 1 rotates to the valve closed state, the sealing element 6 can ensure the sealing between the valve core 1 and the housing. At the same time, a cleaning element 3 is provided between the housing and the valve core 1. The cleaning element 3 has a spray hole 4. An external cleaning medium source delivers a cleaning medium to the cleaning element 3. The cleaning element 3 uses the spray hole 4 to spray the cleaning medium onto the valve core 1, the sealing element 6, and the inner wall of the housing to achieve the purpose of cleaning. The pressure of the cleaning medium can also be controlled to meet different valve cleaning requirements and enhance the cleaning effect. The cleaning medium can be discharged through the outlet 5 to ensure the pressure balance inside the valve. The cleaning medium can be selected according to the actual cleaning needs and can be liquid, gas, or a gas-liquid mixture to clean and purge the interior of the valve, further improving the cleaning effect and enhancing the adaptability and working efficiency of the valve. In addition, the shape and size of the spray hole 4 can be reasonably set so that the cleaning medium forms a jet to meet different cleaning requirements.

[0035] In this embodiment, the cleaning element 3 is annular and coaxially arranged with the flow passage 2. The spray hole 4 is provided on the inner sidewall of the cleaning element 3. This allows the cleaning element 3 to evenly spray the cleaning medium onto the valve core 1, the sealing element 6, and other components through the spray hole 4, ensuring a cleansing effect and improving cleaning efficiency. Furthermore, the coaxial arrangement of the cleaning element 3 with the flow passage 2 facilitates installation and positioning, facilitates assembly and disassembly of the cleaning element 3, and prevents the cleaning element 3 from interfering with the normal operation of the valve core 1.

[0036] In order to further ensure the spraying uniformity of the cleaning medium, there are multiple spray holes 4, and the spray holes 4 are evenly distributed circumferentially around the axis of the cleaning element 3, thereby improving the cleaning efficiency and ensuring the cleaning effect.

[0037] In other specific embodiments of the present invention, there are two groups of cleaning elements 3, and the two groups of cleaning elements 3 are symmetrically arranged with the rotation axis of the valve core 1 as the symmetry axis, thereby enhancing the comprehensiveness of valve cleaning and improving cleaning efficiency.

[0038] Specifically, please refer to Figure 7, the cleaning element 3 has at least one first cleaning surface 7 inclined and opening towards one side of the flow-through channel 2, and has at least one second cleaning surface 8 inclined and opening towards the other side of the flow-through channel 2. Blowing holes 4 are provided on both the first cleaning surface 7 and the second cleaning surface 8. The cleaning element 3 has the first cleaning surface 7 and the second cleaning surface 8 respectively opening towards both ends of the flow-through channel 2. Both the first cleaning surface 7 and the second cleaning surface 8 are conical surfaces and face in opposite directions, and blowing holes 4 are provided on both the first cleaning surface 7 and the second cleaning surface 8, so as to perform all-round spraying and cleaning on the parts around the cavity formed by the valve core 1 and the inner wall of the valve body 20, ensuring the cleaning effect and improving the cleaning efficiency. In other specific embodiments of the present invention, while the first cleaning surface 7 and the second cleaning surface 8 are provided, a cleaning surface on the circumferential surface is also provided to further enhance the cleaning effect.

[0039] For the convenience of processing and assembly, in practical applications, the cleaning element 3 can be set as a split structure. In this specific embodiment, the cleaning element 3 includes a first cleaning ring 9 and a second cleaning ring 10. Blowing holes 4 can be provided on both the first cleaning ring 9 and the second cleaning ring 10. Setting the cleaning element 3 as a split structure reduces the manufacturing difficulty of parts and components, and at the same time facilitates the assembly operation. The axial cross-sections of the first cleaning ring 9 and the second cleaning ring 10 both have an L-shaped structure, so that while they are matched with the inner wall of the housing, the first cleaning ring 9, the second cleaning ring 10 and the inner wall of the housing enclose a medium cavity 23 capable of accommodating the cleaning medium. The medium cavity 23 is connected to an external cleaning medium source. After the cleaning medium enters the medium cavity 23, it is then sprayed towards the valve core 1, the sealing element 6 and other parts through the blowing holes 4 to achieve the purpose of cleaning. Sealing rings are provided between any two of the first cleaning ring 9, the second cleaning ring 10 and the housing to ensure the sealing performance of the sealed cavity and avoid leakage. It should also be explained here that in other specific embodiments of the present invention, on the premise of meeting the cleaning requirements, blowing holes 4 can be provided only on the first cleaning ring 9, and the second cleaning ring 10 is used for auxiliary positioning. The structure of the cleaning element 3, the setting position and distribution density of the blowing holes 4, etc. can be selected according to actual situations to improve the flexible adaptability of cleaning the valve.

[0040] In other specific embodiments of the present invention, both the first cleaning ring 9 and the second cleaning ring 10 are positioned with the housing by using a spigot, which is convenient for assembly positioning and provides convenience for operators.

[0041] More specifically, the housing further has an inlet 11. Both the inlet 11 and the outlet 5 are connected to the medium cavity 23. Drain pipes 12 are connected to both the inlet 11 and the outlet 5, facilitating connection to an external cleaning medium source, smoothly introducing the cleaning medium into the cleaning cavity. Control valves 13 are provided at both the inlet 11 and the outlet 5. The control valves 13 are used to control the introduction and export of the cleaning medium, and can also adjust the pressure of the introduced cleaning medium to meet various cleaning requirements and improve the controllability of valve cleaning.

[0042] It should also be noted that the main body assembly 100 further includes a driver 14, a transmission shaft 15, and a positioning shaft 16. The output end of the driver 14 is in transmission connection with the transmission shaft 15. Both the transmission shaft 15 and the positioning shaft 16 are connected to the valve core 1 and are located at both ends of the valve core 1. The driver 14 drives the valve core 1 to rotate through the transmission shaft 15. The driver 14 can be selected as a motor. The positioning shaft 16 is rotatably arranged on the housing and cooperates with the transmission shaft 15 to support the valve core 1. The rotation axis of the transmission shaft 15 is perpendicular to the axis of the flow channel 2, ensuring that the rotation of the valve core 1 can open and block the flow channel 2. A transmission bracket 17 is provided between the transmission shaft 15 and the housing, and a positioning bracket 18 is provided between the positioning shaft 16 and the housing to ensure the smooth rotation of the transmission shaft 15 and the positioning shaft 16. The positioning bracket 18 is also connected to a positioning rear cover 19 to fix the axial position of the positioning shaft 16. The positioning bracket 18 and the positioning rear cover 19 are detachably connected by bolts, facilitating the assembly operation.

[0043] Among them, the housing includes a valve body 20 and a valve seat 21. The valve body 20 is connected to the valve seat 21. The number of valve seats 21 is two groups, and the two groups of valve seats 21 are respectively arranged at both ends of the valve body 20. The valve seat 21 has a connecting flange 22, which is convenient for the valve to be connected to other structures such as pipelines. The sealing element 6 is arranged in the valve seat 21 to avoid affecting the rotation of the valve core 1 and play a sealing role after the valve core 1 rotates in place. In order to enhance the sealing effect of the sealing element 6, in practical applications, the sealing element 6 includes multiple sealing rings arranged along the axis direction of the flow channel 2. The method of setting multiple sealing rings is used to achieve multiple seals, effectively enhancing the sealing effect. The sealing rings can be selected with appropriate types of structures according to the actual needs of the valve. In addition, it should also be noted that in this specific embodiment, the valve core 1 is a spherical structure. When the valve core 1 is of other structures, the cleaning assembly 200 of the present invention can still be used to clean the valve core 1, the sealing element 6, the inner wall of the valve body 20, and other components, improving the working efficiency of the valve and extending the service life of the valve.

[0044] In addition, in actual applications, a controller may be provided, with both the main assembly 100 and the cleaning assembly 200 connected to the controller. The controller controls the operating state of the driver 14 via a relay, thereby controlling the opening and closing of the valve. A travel switch may also be provided on the driver 14. When the driver 14 controls the valve to open or close, the travel switch transmits an output signal to the controller, allowing the controller to determine the valve state. Simultaneously, the controller can control the operating state and operating parameters of the cleaning assembly while controlling the state of the main assembly 100. The controller is a conventional method used by those skilled in the art and will not be described in detail here.

[0045] The self-cleaning valve of the present invention, when working, controls the working state of the driver 14 by the controller to realize the control of the main assembly 100, and then controls the opening of the control valves 13 at the inlet 11 and the outlet 5, so that the cleaning medium enters the cleaning chamber from the drainage pipe 12 connected to the inlet 11, and the cleaning medium is sprayed toward the valve core 1, the sealing element 6, the transmission shaft 15 and the positioning shaft 16 in a certain direction and at a certain pressure through the spray holes 4 on the first cleaning ring 9 and the second cleaning ring 10, so as to achieve the purpose of flushing and cleaning. According to the volume of the cleaning chamber, the flow rate of the cleaning medium, etc., the control valve 13 at the outlet 5 is opened in time. For example, when the control valve 13 at the inlet 11 is fully opened, the control valve 13 at the outlet 5 is opened, so that the cleaning medium is discharged from the drainage pipe 12 connected to the outlet 5. The controller counts the time, and after the flushing time reaches the preset time, the control valves 13 at the inlet 11 and the outlet 5 are closed at the same time. After the control valves 13 at the inlet 11 and the outlet 5 are closed, the main assembly 100 is in a static state. The controller can open the cleaning assembly 200 again according to the preset static time of the main assembly 100 to achieve automatic flushing and cleaning, thereby improving the controllability of the valve.

[0046] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A self-cleaning valve, characterized in that, Comprising: A main body component, the main body component including a housing and a valve core, the valve core being rotatably arranged within the housing, the valve core having a valve core hole, the housing having a communication port, the valve core hole being capable of communicating with the communication port to form a flow-through channel, and a sealing element being arranged between the valve core hole and the communication port; A cleaning component, the cleaning component including a cleaning element, the cleaning element being arranged on the inner wall of the housing and located within the space enclosed by the outer wall of the housing and the valve core, the cleaning element having a blowing hole, the blowing hole being in communication with an external cleaning medium source, the blowing hole being arranged facing the valve core and the sealing element; the housing is further provided with a discharge port, and the cleaning medium can be discharged outside the housing through the discharge port; the cleaning element has at least one first cleaning surface inclined with an opening towards one side of the flow-through channel and at least one second cleaning surface inclined with an opening towards the other side of the flow-through channel, the blowing holes being arranged on both the first cleaning surface and the second cleaning surface, and further including a cleaning surface on the circumferential surface; the cleaning medium is a liquid, a gas or a gas-liquid mixture.

2. The self-cleaning valve according to claim 1, wherein: The cleaning element is annular, the cleaning element is coaxially arranged with the flow-through channel, and the blowing holes are arranged on the inner side wall of the cleaning element.

3. The self-cleaning valve according to claim 1, characterized in that: The number of the blowing holes is multiple, and the blowing holes are circumferentially uniformly distributed around the axis of the cleaning element.

4. The self-cleaning valve according to claim 1, characterized in that: The number of the cleaning elements is two groups, and the two groups of cleaning elements are symmetrically arranged with the rotation axis of the valve core as the axis of symmetry.

5. The self-cleaning valve according to any one of claims 1-4, characterized in that: The cleaning element is of a split structure, the cleaning element including a first cleaning ring and a second cleaning ring, the blowing holes being arranged on both the first cleaning ring and the second cleaning ring, a medium cavity being formed by the first cleaning ring, the second cleaning ring and the housing, the medium cavity being in communication with an external cleaning medium source, and sealing rings being arranged between any two of the first cleaning ring, the second cleaning ring and the housing.

6. The self-cleaning valve according to claim 5, characterized in that: Both the first cleaning ring and the second cleaning ring are positioned with the housing by using a rabbet.

7. The self-cleaning valve according to claim 5, characterized in that: The housing further has an inlet, both the inlet and the discharge port are in communication with the medium cavity, both the inlet and the discharge port are connected with a drainage pipe, and control valves are arranged at both the inlet and the discharge port.

8. The self-cleaning valve according to any one of claims 1-4, characterized in that: The main body component further includes a driver, a transmission shaft and a positioning shaft, the output end of the driver being in transmission connection with the transmission shaft, both the transmission shaft and the positioning shaft being connected to the valve core and located at both ends of the valve core, the rotation axis of the transmission shaft being perpendicular to the axis of the flow-through channel, a transmission bracket being arranged between the transmission shaft and the housing, and a positioning bracket being arranged between the positioning shaft and the housing.

9. The self-cleaning valve according to claim 8, wherein: The housing includes a valve body and a valve seat, the valve body being connected to the valve seat, the valve seat having a connecting flange, the sealing element being arranged within the valve seat; the sealing element includes multiple sealing rings arranged along the axis direction of the flow-through channel; the valve core is of a spherical structure.

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