A flow control valve and its control method

Abstract

The present invention discloses a flow regulating valve and its control method, which relates to the technical field of flow regulating valves. It includes a valve body and a controller. A pressure relief component is arranged at the water inlet end of the valve body, a filtering component is installed between the pressure relief components, a driving component is installed above the valve body, a valve core is installed at the bottom of the driving component, and the valve core is installed inside the valve body. The pressure relief component can relieve excess pressure, and the filtering component can filter the particles in the water. When the device is in use, after the water hammer passes through the pressure relief component, the force of the water hammer can be reduced through the pressure relief component, thereby reducing the impact force on the valve body and the pipeline. When the filtering component is in use, it can collect some of the particulate matter in the water, reduce the particles passing through the valve core when closing the valve, and prevent particles from remaining between the valve core and the inner wall of the valve body after the valve core is completely closed.

Description

Technical Field

[0001] The present invention relates to the technical field of flow regulating valves, and specifically to a flow regulating valve and its control method. Background Art

[0002] As the most commonly used control valve in the ship's seawater system, the flow regulating valve mainly functions to regulate the flow parameters of the seawater system. When the flow regulating valve is working, there are complex flow phenomena such as turbulence, separation, and cavitation in the flow channel, which in turn lead to strong pipeline vibration and vortex noise. At the same time, whether it is a flow regulating valve or a regional valve, when the valve is blocked, the water flow velocity will suddenly change, causing water hammer. When the impact is large, the pipeline connected to the valve body will be impacted, and in the worst case, the pipeline will burst, which will affect the use of the valve. Summary of the Invention

[0003] The purpose of the present invention is to provide a flow regulating valve and its control method to solve the problems raised in the prior art.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A flow regulating valve includes a valve body and a controller. A pressure relief component is arranged at the water inlet end of the valve body. A filtering component is installed between the pressure relief components. A driving component is installed above the valve body. A valve core is installed at the bottom of the driving component. The valve core is installed inside the valve body. The pressure relief component can relieve the excess pressure, and the filtering component can filter the particles in the water.

[0005] Further, a valve cover is installed above the valve body. The valve core is located between the valve body and the valve cover. The driving component includes a cylinder. A valve rod is installed at the output end of the cylinder. The other end of the valve rod is connected to the valve core. A sealing gasket is arranged between the valve body and the valve cover.

[0006] Further, the pressure relief component includes multiple groups of support plates. The multiple groups of support plates are equidistantly installed inside the water inlet end of the valve body. A pressure relief pipe is installed between the multiple groups of support plates. An annular airbag and a pressing rod are installed inside the pressure relief pipe. A pressing sleeve is installed at one end of the pressure relief pipe close to the water inlet. A pressing rod is installed inside the pressing sleeve. A movable cylinder is installed outside the pressing sleeve. The movable cylinder can reciprocate on the pressing sleeve. A blocking plate is installed at the other end of the movable cylinder. The side of the blocking plate receiving the impact force is arc-shaped. Multiple holes are arranged on the side of the annular airbag away from the pressing rod.

[0007] Further, the other end of the pressure relief pipe is installed with a pressure relief arc plate, multiple groups of air vents are arranged on the pressure relief arc plate, the other end of the pressure relief arc plate is installed with a limit post, a limit sleeve is sleeved on the limit post, the other end of the limit sleeve is installed with a force unloading arc plate, multiple groups of air vents are also arranged on the force unloading arc plate, and the diameter of the air vents on the force unloading arc plate is larger than that of the air vents on the pressure relief arc plate.

[0008] Further, when the valve is closed: the water hammer generated by the fluid will impact the force unloading arc plate, enter the annular airbag through the air vents on the force unloading arc plate and the pressure relief arc plate, and the excess force will flow back and act on the force unloading arc plate;

[0009] When the valve is opened: the impact force of the water flow can push the blocking plate, the blocking plate pushes the extrusion rod, and the extrusion rod pushes the annular airbag, squeezing the air and liquid in the annular airbag.

[0010] Further, the filtering component includes a limit rod, the limit rod is installed between two parallel support plates, a filtering ring is installed on the limit rod, the filtering ring is installed on the limit rod through a bearing, multiple groups of filtering frames are installed on the filtering ring, and the multiple groups of filtering frames are equidistantly installed on the filtering ring, and a filtering film is installed between the filtering frames.

[0011] Further, an exhaust pipe is installed above the water inlet end of the valve body, the air at the water inlet end of the valve body can enter the exhaust pipe, a rubber block is installed inside the exhaust pipe, a water stop hole is opened in the middle of the rubber block, the diameter of the water stop hole near the valve end is larger than that of the other end, and the diameter of the water stop hole gradually decreases from the end near the valve to the other end.

[0012] Further, the controller is installed on the side of the valve body, an operation panel is arranged on the controller, and the operation panel is connected to the controller.

[0013] A control method for a flow regulating valve, S1, assembling the valve body;

[0014] S2, starting or stopping the driving component through the controller.

[0015] Further, the S2 includes S21, the driving component drives the valve core to open the valve, the water flow enters the valve body from the water inlet end of the valve body, passes through the pressure relief component and the filtering component, and then is discharged from the water outlet end of the valve body;

[0016] S22, when the valve core closes the valve body, the generated water hammer passes through the pressure relief component, and the pressure relief component can unload the water hammer force to reduce the impact on the pipeline.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. When the device is in use, after the water hammer passes through the pressure relief component, the pressure relief component can reduce the force of the water hammer, thereby reducing the impact force on the valve body and pipeline. When the filtering component is in use, it can collect some particulate matters in the water, reduce the particles passing through the valve core when closing the valve, and prevent particles from remaining between the valve core and the inner wall of the valve body after the valve core is completely closed;

[0019] 2. When the pressure relief component is in specific use, the water hammer will first impact the valve core. The water hammer will first impact the force relief arc plate. The force relief arc plate weakens a certain force of the water hammer, reducing the liquid entering the pressure relief pipe. Then, a small amount of gas and liquid will enter the pressure relief pipe, thereby inflating the annular airbag. After the inflation is completed, the annular airbag will expand and simultaneously push open the extrusion rod and the blocking plate. When there is a gap between the blocking plate and the pressure relief pipe, the flow rate of the subsequent entering liquid will decrease, so the subsequent reciprocating water hammer will also be alleviated. When the valve is continuously opened later, the subsequent entering water flow will continuously impact the blocking plate. At this time, the blocking plate will squeeze the extrusion rod and then squeeze the annular airbag, discharging the liquid and gas in the annular airbag;

[0020] 3. When the filtering component of the device is in use, it can collect some particulate matters in the water, reduce the particles passing through the valve core when closing the valve, and prevent particles from remaining between the valve core and the inner wall of the valve body after the valve core is completely closed. In specific use, the water flow impacts the filter frame on the filtering component. And because there is a filter film between the filter frames, the impact force of the water flow can also drive multiple groups of filter frames to rotate. When the filtering component rotates, it can filter the particles in the water more deeply. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is an isometric structural schematic diagram of the whole of the present invention;

[0022] Figure 2 is a sectional structural schematic diagram of the present invention;

[0023] Figure 3 is a partial structural schematic diagram of the input end of the valve body of the present invention;

[0024] Figure 4 is a structural schematic diagram of the water inlet direction of the valve body of the present invention;

[0025] Figure 5 is a structural schematic diagram of the pressure relief component of the present invention;

[0026] Figure 6 is of the present invention Figure 3 the enlarged schematic diagram at "A" in;

[0027] Figure 7 is of the present invention Figure 5 the enlarged schematic diagram at "B" in.

[0028] In the figure: 1. Valve body; 11. Valve core; 12. Valve cover; 2. Pressure relief component; 21. Support plate; 22. Pressure relief pipe; 23. Annular airbag; 24. Extrusion rod; 25. Baffle plate; 26. Pressure relief arc plate; 27. Force relief arc plate; 3. Filter component; 31. Limit rod; 32. Filter ring; 33. Filter frame; 4. Driving component; 41. Cylinder; 42. Valve rod; 5. Exhaust pipe; 51. Rubber block; 6. Controller. Specific implementation mode

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0030] Embodiment: As Figures 1 - 7 shown, the present invention provides a technical solution for a flow regulating valve and its control method, including a valve body 1 and a controller 6. A pressure relief component 2 is arranged at the water inlet end of the valve body 1. A filter component 3 is installed between the pressure relief components 2. A driving component 4 is installed above the valve body 1. A valve core 11 is installed at the bottom of the driving component 4. The valve core 11 is installed inside the valve body 1. The pressure relief component 2 can relieve excess pressure, and the filter component 3 can filter particles in water;

[0031] When the device is in use, first, the input end and the output end of the valve body 1 need to be connected. During subsequent use, the staff can control only the driving component 4 through the controller 6 to control the opening and closing of the valve body 1. When the valve body 1 is in the open state, water will enter the interior of the valve body 1 from the input end. During this period, the water flow will also pass through the pressure relief component 2 and the filtering component 3. Since the pressure relief component 2 is provided with an arc-shaped baffle 25 at the input end of the valve body 1, when the water flow passes through the pressure relief component 2, the flow rate of the water flow will not be affected too much. However, when the water flow passes through the filtering component 3, the filtering component 3 can collect some particulate matters in the water, reducing the particles passing through the valve core 11 when the valve is closed, and preventing particles from remaining between the valve core 11 and the inner wall of the valve body 1 after the valve core 11 is completely closed. When the valve body 1 is closed, due to the sudden change in the water flow rate, water hammer is caused. After the water hammer passes through the pressure relief component 2, the pressure relief component 2 can reduce the force of the water hammer, thereby reducing the impact force on the valve body 1 and the pipeline. When the pressure relief component 2 is in specific use, the water hammer will first impact the valve core 11, and the water hammer will rebound back through the force relief arc plate 27, and then through the pressure relief arc plate 26, so that the annular airbag 23 inside the pressure relief pipe 22 will collect the excess gas and liquid. At the same time, it will push open the extrusion rod 24 and the baffle 25. When there is a gap between the baffle 25 and the pressure relief pipe 22, the flow rate of the subsequent incoming liquid will decrease, so that the subsequent reciprocating water hammer will also be alleviated. At the same time, the remaining air in the pipeline will be discharged through the exhaust pipe 5. Therefore, when the device is in use, it can effectively relieve the impact force of the water hammer, thereby increasing the service life of the valve body 1 to a certain extent.

[0032] As Figures 1 - 2 shown, in this embodiment, specifically, a valve cover 12 is installed above the valve body 1. The valve core 11 is located between the valve body 1 and the valve cover 12. The driving component 4 includes a cylinder 41. The output end of the cylinder 41 is installed with a valve rod 42. The other end of the valve rod 42 is connected to the valve core 11. A sealing gasket is provided between the valve body 1 and the valve cover 12.

[0033] Therefore, when the valve body 1 is in use, it can be driven by the driving component 4. In specific use, the controller 6 can control the opening and closing of the cylinder 41. After the cylinder 41 is started, it can drive the valve rod 42, so that the valve rod 42 drives the valve core 11 to move up or down, thereby realizing the opening or closing of the regulating valve.

[0034] As Figures 2 - 5As shown, in this embodiment, specifically, the pressure relief component 2 includes multiple groups of support plates 21. The multiple groups of support plates 21 are equidistantly installed inside the water inlet end of the valve body 1. A pressure relief pipe 22 is installed between the multiple groups of support plates 21. An annular airbag 23 and a pressing rod 24 are installed inside the pressure relief pipe 22. A pressing sleeve is installed at one end of the pressure relief pipe 22 close to the water inlet. The pressing rod 24 is installed inside the pressing sleeve. A movable cylinder is installed outside the pressing sleeve. The movable cylinder can reciprocate on the pressing sleeve. A blocking plate 25 is installed at the other end of the movable cylinder. The side of the blocking plate 25 that is subjected to the impact force is arc-shaped. Multiple groups of holes are formed on the side of the annular airbag 23 away from the pressing rod 24;

[0035] Because the pressure relief component 2 is provided with an arc-shaped blocking plate 25 at the input end of the valve body 1, when the water flow passes through the pressure relief component 2, the flow rate of the water flow will not be greatly affected. After the water hammer passes through the pressure relief component 2, the pressure relief component 2 can reduce the force of the water hammer, thereby reducing the impact force on the valve body 1 and the pipeline. When the pressure relief component 2 is in specific use, the water hammer will first impact the valve core 11. The water hammer rebounds and passes through the unloading arc plate 27, and then passes through the pressure relief arc plate 26, so that the annular airbag 23 inside the pressure relief pipe 22 collects the excess gas and liquid. At the same time, it will push open the pressing rod 24 and the blocking plate 25. When there is a gap between the blocking plate 25 and the pressure relief pipe 22, the flow rate of the subsequent incoming liquid will decrease, so the subsequent repeated water hammer will also be alleviated. When the valve is continuously opened later, the subsequent incoming water flow will continuously impact the blocking plate 25. At this time, the blocking plate 25 will squeeze the pressing rod 24 and then squeeze the annular airbag 23, so that the liquid and gas in the annular airbag 23 are discharged.

[0036] As Figures 3 - 5 As shown, in this embodiment, specifically, a pressure relief arc plate 26 is installed at the other end of the pressure relief pipe 22. Multiple groups of air release holes are provided on the pressure relief arc plate 26. A limiting column is installed at the other end of the pressure relief arc plate 26. A limiting sleeve is sleeved on the limiting column. A unloading arc plate 27 is installed at the other end of the limiting sleeve. Multiple groups of air release holes are also provided on the unloading arc plate 27. The diameter of the air release holes on the unloading arc plate 27 is larger than the diameter of the air release holes on the pressure relief arc plate 26;

[0037] The other end of the pressure relief pipe 22 of the device serves as the main force for pressure relief. During specific use, water hammer will first impact the force relief arc plate 27. The force relief arc plate 27 weakens a certain amount of the water hammer force. Moreover, since the diameter of the air vent holes on the force relief arc plate 27 is larger than that of the air vent holes on the pressure relief arc plate 26, the remaining gas and liquid in the water hammer will then pass through the air vent holes to reduce the liquid, decreasing the liquid entering the pressure relief pipe 22. Subsequently, a small amount of gas and liquid will enter the pressure relief pipe 22, thereby inflating the annular airbag 23. After inflation is completed, the annular airbag 23 will expand, thereby pushing the extrusion rod 24 and the blocking plate 25. When there is a gap between the blocking plate 25 and the pressure relief pipe 22, the flow rate of the subsequent incoming liquid will decrease, and thus the subsequent reciprocating water hammer will also be alleviated.

[0038] As Figures 3 - 5 shown, in this embodiment, specifically, when the valve is closed: the water hammer generated by the fluid will impact the force relief arc plate 27, enter the annular airbag 23 through the air vent holes on the force relief arc plate 27 and the pressure relief arc plate 26, and the excess force will act back on the force relief arc plate 27;

[0039] When the valve is opened: the impact force of the water flow can push the blocking plate 25, the blocking plate 25 pushes the extrusion rod 24, and the extrusion rod 24 pushes the annular airbag 23, squeezing the air and liquid inside the annular airbag 23;

[0040] Thus, when the annular airbag 23 of the device is in use, when there is a water hammer impacting the pressure relief assembly 2, the annular airbag 23 will absorb part of the water hammer force, reducing the impact of the water hammer on the valve body 1 and the pipeline. When the valve is subsequently opened continuously, the subsequent incoming water flow will continuously impact the blocking plate 25. At this time, the blocking plate 25 will squeeze the extrusion rod 24 and then squeeze the annular airbag 23, discharging the liquid and gas inside the annular airbag 23.

[0041] As Figures 4 - 5 and Figure 7 shown, in this embodiment, specifically, the filter assembly 3 includes a limiting rod 31. The limiting rod 31 is installed between two groups of parallel support plates 21. A filter ring 32 is installed on the limiting rod 31. The filter ring 32 is installed on the limiting rod 31 through a bearing. A plurality of filter frames 33 are installed on the filter ring 32. The plurality of filter frames 33 are equidistantly installed on the filter ring 32. Filter membranes are installed between the filter frames 33;

[0042] When the filtering component 3 of the device is in use, it can collect some particulate matters in water, reduce the particles passing through the valve core 11 when the closing valve is operated, and prevent particles from remaining between the valve core 11 and the inner wall of the valve body 1 after the valve core 11 is completely closed. During specific use, the water flow impacts the filter frame 33 on the filtering component 3. Since a filtering film is provided between the filter frames 33, the impact force of the water flow can also drive multiple groups of filter frames 33 to rotate. When the filtering component 3 rotates, it can filter the particles in the water more deeply.

[0043] As Figure 6 shown, in this embodiment, specifically, an exhaust pipe 5 is installed above the water inlet end of the valve body 1. The air at the water inlet end of the valve body 1 can enter the exhaust pipe 5. A rubber block 51 is installed inside the exhaust pipe 5. A water stop hole is formed in the middle of the rubber block 51. The diameter of the water stop hole near the valve end is larger than that of the other end, and the diameter of the water stop hole gradually decreases from the end near the valve to the other end;

[0044] When the valve body 1 is in use, the remaining air in the pipeline will be discharged through the exhaust pipe 5. During specific use of the exhaust pipe 5, the excess air in the valve body 1 will enter the inside of the exhaust pipe 5 through the hole. Since a rubber block 51 is provided inside the exhaust pipe 5, it can block a certain amount of liquid, allowing the gas to be discharged through the water stop hole. Since the diameter of the water stop hole gradually decreases, it can more effectively block the liquid.

[0045] As Figure 1 shown, in this embodiment, specifically, the controller 6 is installed on the side of the valve body 1. A control panel is provided on the controller 6, and the control panel is connected to the controller 6;

[0046] During use, the staff can remotely control the valve body 1 through the controller 6, and can also control the valve body 1 up close through the control panel.

[0047] As Figures 1 - 7 shown, in this embodiment, specifically, S1: Assemble the valve body;

[0048] S2: Start or stop the driving component through the controller.

[0049] As Figures 1 - 7 shown, in this embodiment, specifically, S2 includes S21: The driving component drives the valve core to open the valve, and the water flow enters the valve body from the water inlet end of the valve body, passes through the pressure relief component and the filtering component, and then is discharged from the water outlet end of the valve body;

[0050] S22: When the valve core closes the valve body, the water hammer generated passes through the pressure relief component, and the pressure relief component can relieve the water hammer force and reduce the impact on the pipeline.

[0051] Working principle: When the device is in use, it is first necessary to connect the input end and the output end of the valve body 1. During subsequent use, the staff can only control the driving component 4 through the controller 6 to control the opening and closing of the valve body 1. When the valve body 1 is in the open state, water flow will enter the interior of the valve body 1 from the input end. During this period, the water flow will also pass through the pressure relief component 2 and the filtration component 3. Since the pressure relief component 2 is provided with an arc-shaped baffle 25 at the input end of the valve body 1, when the water flow passes through the pressure relief component 2, the flow rate of the water flow will not be affected too much. However, when the water flow passes through the filtration component 3, the filtration component 3 can collect some of the particulate matter in the water, reducing the particles passing through the valve core 11 when the closing valve is closed, preventing particles from remaining between the valve core 11 and the inner wall of the valve body 1 after the valve core 11 is completely closed. When the valve body 1 is closed, due to the sudden change in the water flow rate, water hammer is caused. After the water hammer passes through the pressure relief component 2, the pressure relief component 2 can reduce the force of the water hammer, thereby reducing the impact force on the valve body 1 and the pipeline. When the pressure relief component 2 is in specific use, the water hammer will first impact the valve core 11, and the water hammer will rebound and pass through the force relief arc plate 27, and then through the pressure relief arc plate 26, so that the annular airbag 23 inside the pressure relief pipe 22 will collect the excess gas and liquid. At the same time, it will push open the extrusion rod 24 and the baffle 25. When there is a gap between the baffle 25 and the pressure relief pipe 22, the flow rate of the subsequent incoming liquid will decrease, so the subsequent repeated water hammer will also be alleviated. At the same time, the remaining air in the pipeline will be discharged through the exhaust pipe 5. Therefore, when the device is in use, it can effectively alleviate the impact force of the water hammer, thereby increasing the service life of the valve body 1 to a certain extent.

[0052] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A flow regulating valve, comprising a valve body (1) and a controller (6), characterized in that: A pressure relief component (2) is provided at the water inlet end of the valve body (1). A filtering component (3) is installed between the pressure relief components (2). A driving component (4) is installed above the valve body (1). A valve core (11) is installed at the bottom of the driving component (4). The valve core (11) is installed inside the valve body (1). The pressure relief component (2) can relieve excess pressure, and the filtering component (3) can filter particles in the water. The pressure relief component (2) includes multiple groups of support plates (21). The multiple groups of support plates (21) are equidistantly installed inside the water inlet end of the valve body (1). A pressure relief pipe (22) is installed between the multiple groups of support plates (21). An annular airbag (23) and a squeezing rod (24) are installed inside the pressure relief pipe (22). A squeezing sleeve is installed at one end of the pressure relief pipe (22) close to the water inlet. The squeezing rod (24) is installed inside the squeezing sleeve. A movable cylinder is installed outside the squeezing sleeve. The movable cylinder can reciprocate on the squeezing sleeve. A blocking plate (25) is installed at the other end of the movable cylinder. The impact-receiving surface of the blocking plate (25) is arc-shaped. Multiple groups of holes are formed on the side of the annular airbag (23) away from the squeezing rod (24). A pressure relief arc plate (26) is installed at the other end of the pressure relief pipe (22). Multiple groups of pressure relief holes are provided on the pressure relief arc plate (26). A limiting column is installed at the other end of the pressure relief arc plate (26). A limiting sleeve is sleeved on the limiting column. A force-relieving arc plate (27) is installed at the other end of the limiting sleeve. Multiple groups of pressure relief holes are also provided on the force-relieving arc plate (27). The diameter of the pressure relief holes on the force-relieving arc plate (27) is larger than that of the pressure relief holes on the pressure relief arc plate (26).

2. The flow regulating valve according to claim 1, wherein: A valve cover (12) is installed above the valve body (1). The valve core (11) is located between the valve body (1) and the valve cover (12). The driving component (4) includes a cylinder (41). A valve rod (42) is installed at the output end of the cylinder (41). The other end of the valve rod (42) is connected to the valve core (11). A sealing gasket is provided between the valve body (1) and the valve cover (12).

3. The flow control valve according to claim 2, characterized in that: When the valve is closed: The water hammer generated by the fluid will impact the force-relieving arc plate (27), enter the annular airbag (23) through the pressure relief holes on the force-relieving arc plate (27) and the pressure relief arc plate (26), and the excess force will flow back and act on the force-relieving arc plate (27). When the valve is opened: The impact force of the water flow can push the blocking plate (25). The blocking plate (25) pushes the squeezing rod (24), and the squeezing rod (24) pushes the annular airbag (23), squeezing the air and liquid inside the annular airbag (23).

4. The flow regulating valve according to claim 3, characterized in that: The filtering component (3) includes a limiting rod (31). The limiting rod (31) is installed between two parallel support plates (21). A filtering ring (32) is installed on the limiting rod (31). The filtering ring (32) is installed on the limiting rod (31) through a bearing. Multiple groups of filtering frames (33) are installed on the filtering ring (32). The multiple groups of filtering frames (33) are equidistantly installed on the filtering ring (32). A filtering film is installed between the filtering frames (33).

5. The flow control valve according to claim 4, characterized in that: An exhaust pipe (5) is installed above the water inlet end of the valve body (1). Air at the water inlet end of the valve body (1) can enter the exhaust pipe (5). A rubber block (51) is installed inside the exhaust pipe (5). A water stop hole is formed in the middle of the rubber block (51). The diameter of the water stop hole near the valve end is larger than that of the other end. The diameter of the water stop hole gradually decreases from the end near the valve to the other end.

6. The flow regulating valve according to claim 5, characterized in that: The controller (6) is installed on the side of the valve body (1). An operation panel is arranged on the controller (6). The operation panel is connected to the controller (6).

7. A control method for a flow regulating valve, characterized in that: The control method is applicable to a flow regulating valve according to claim 6. The control method of the flow regulating valve comprises the following steps: S1. Assemble the valve body. S2. Start or stop the driving component through the controller.

8. A control method for a flow regulating valve according to claim 7, characterized in that: S2 includes S21. The driving component drives the valve core to open the valve. Water flows into the valve body from the water inlet end of the valve body, passes through the pressure relief component and the filtering component, and then is discharged from the water outlet end of the valve body. S22. When the valve core closes the valve body, the water hammer generated passes through the pressure relief component. The pressure relief component can relieve the water hammer force and reduce the impact on the pipeline.

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