Regulating valve capable of automatically distributing and reducing pressure

Abstract

The invention discloses an automatic distribution depressurization regulating valve which comprises a main body mechanism, a guide depressurization mechanism and a direct impact depressurization mechanism, the main body mechanism comprises a valve body, a valve rod is arranged in the valve body, a valve element is installed at one end of the bottom of the valve rod, an arc-shaped protrusion is arranged on the outer wall of the valve element, and a V-shaped groove is formed in the arc-shaped protrusion; during use, high-pressure water flow enters the valve body and impacts a second damping ring, so that the second damping ring compresses a second spring in a groove, a first damping ring and the second damping ring are matched for preliminary buffering and pressure reduction, other high-pressure water flow enters the valve element, the flow direction of the high-pressure water flow is changed through an arc-shaped protrusion, and the high-pressure water flow is guided into a water inlet cavity through a V-shaped groove to impact an arc-shaped plate; and the annular pressure sensor senses the pressure in real time, and automatic distribution and pressure reduction regulation and control can be achieved when high-pressure water flow enters the valve body through mutual cooperation of double automatic regulation and pressure reduction.

Description

Technical Field

[0001] The present invention relates to the technical field of regulating valves, in particular to a regulating valve capable of automatically distributing reduced pressure. Background Art

[0002] Electric control valves are key equipment in the field of industrial automation control. They drive the valve core through electric actuators. Their core consists of a valve body, an electric actuator, and a control system. The actuator receives electrical signals and converts them into mechanical displacement to change the valve core opening, thereby achieving continuous flow control. They have the characteristics of high adjustment accuracy, fast response speed, and convenient remote control. They do not require manual operation and are compatible with intelligent control systems. They are widely used in industries such as petroleum, chemical, electric power, and water treatment. They can stabilize production processes and improve energy utilization efficiency. They are important components of modern industrial control.

[0003] However, conventional electric regulating valves often have the problem of poor pressure reduction effect when dealing with high-pressure water flow. It is difficult to effectively buffer and distribute the high-pressure water flow, and it is impossible to automatically regulate the water flow pressure, resulting in the valve body being easily damaged by high-pressure impact when closed. At the same time, the internal structure of the valve body lacks an effective self-cleaning mechanism. Impurities in the water flow are easy to adhere to the inner wall of the valve body, especially the surface of the valve core. When cleaning, the components need to be disassembled, and the operation is cumbersome. Not only does it affect the service life of the regulating valve, but the frequent disassembly also reduces the stability of the equipment operation, making it difficult to meet the high-pressure water pipe system's requirements for pressure regulation and maintenance convenience. Summary of the Invention

[0004] The object of the present invention is to provide a regulating valve that automatically distributes pressure reduction to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a regulating valve for automatically distributing and reducing pressure, comprising a main body mechanism, a guided pressure-reducing mechanism, and a direct pressure-reducing mechanism: The main body mechanism includes a valve body, a valve stem is provided inside the valve body, a valve core is installed at one end of the bottom of the valve stem, an arc-shaped protrusion is provided on the outer wall of the valve core, and a V-shaped groove is provided on the arc-shaped protrusion; The guide pressure reduction mechanism is installed on the valve body, and is used to guide the high-pressure water flow and perform buffering and pressure reduction when the high-pressure water flow enters the valve body; The direct-wash pressure-reducing mechanism is installed on the inner wall of the water inlet of the valve body, and is used for buffering and reducing the pressure of the high-pressure water flow when the high-pressure water flow enters the valve body.

[0006] Preferably, the guide pressure-reducing mechanism includes an integrally formed water inlet cavity arranged on the valve body, a guide cylinder is embedded in one side of the water inlet cavity, a telescopic sleeve is provided inside the guide cylinder, the telescopic sleeve is composed of two hollow tubes slidingly connected to each other, one end of the telescopic sleeve is fixedly connected to the inner wall of the guide cylinder, the other end of the telescopic sleeve is fixedly connected to an arc plate, the outer wall of the telescopic sleeve is sleeved with a first spring, an annular pressure sensor is installed on the inner wall of the water inlet cavity close to the guide cylinder, and one end of the first spring abuts against the annular pressure sensor.

[0007] Preferably, a brush is provided on one side of the arc plate close to the valve core, and a plurality of equally spaced water outlet holes are provided on the one side of the arc plate close to the valve core, and the water inlet of the water outlet hole is connected to an opening at one end of the telescopic sleeve.

[0008] Preferably, the direct-flow pressure reduction mechanism includes an annular plate, which is fixedly connected to the inner wall of the water inlet of the valve body, and a first damping ring is fixedly connected to one side of the annular plate. The outer wall of the first damping ring has a plurality of grooves equidistantly distributed around the circumference, and a second spring is fixedly connected to the inside of the groove, and one end of the second spring is fixedly connected to the second damping ring.

[0009] Preferably, an actuator motor is mounted on the top of the valve body via a bracket, and a rotating shaft of the actuator motor is connected to one end of the top of the valve stem via a coupling.

[0010] Preferably, a controller is installed on the outer wall of the bracket, the controller is electrically connected to the execution motor, and the controller is signal-connected to the annular pressure sensor.

[0011] Preferably, both inner walls of the water inlet cavity are provided with sliding grooves, and both sides of the arc-shaped plate are fixedly connected with L-shaped sliders, and the L-shaped sliders are slidably installed inside the sliding grooves.

[0012] Preferably, sealing strips are fixedly connected to the outer walls of the curved plate.

[0013] Preferably, a side of the arc-shaped plate close to the telescopic sleeve is fixedly connected to a limiting ring, and one end of the first spring is located inside the limiting ring.

[0014] Preferably, the outer wall of one end of the guide cylinder is connected to a plug through a thread.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: when the present invention is used, high-pressure water flows into the valve body, and the water flows impact the second damping ring, compressing the second spring in the groove. The first damping ring and the second damping ring cooperate to initially buffer and reduce the pressure. The remaining high-pressure water flows into the valve core, changes the flow direction through the arc-shaped protrusion, and is introduced into the water inlet cavity by the V-shaped groove, impacting the arc plate, causing the telescopic sleeve to contract and compress the first spring, further weakening the impact. The annular pressure sensor senses the pressure in real time, and the mutual cooperation of the dual automatic pressure reduction can realize automatic distribution and pressure reduction control when the high-pressure water flows into the valve body.

[0016] In addition, one end of the telescopic sleeve is fixed to the inner wall of the guide cylinder, and the other end is connected to the arc plate. When the external water channel is connected to the guide cylinder, water can enter the arc plate through one end of the telescopic sleeve and flow out through the water outlet, flushing the inner wall of the valve body and the outer wall of the valve core to achieve self-cleaning. At this time, the motor drives the valve core to rotate, and it is cleaned with a brush to extend its service life. It can be cleaned without disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of a regulating valve for automatically distributing and reducing pressure according to an embodiment of the present invention; Figure 2 A schematic structural diagram of the automatic pressure-reducing regulating valve according to an embodiment of the present invention from another perspective; Figure 3 This is a structural diagram of a direct-flow pressure reduction mechanism in a regulating valve for automatically distributing pressure reduction according to an embodiment of the present invention; Figure 4 Schematic diagram of the cross-sectional structure of a regulating valve for automatically distributing and reducing pressure according to an embodiment of the present invention; Figure 5 This is a schematic cross-sectional perspective structural diagram of a regulating valve for automatically distributing and reducing pressure according to an embodiment of the present invention; Figure 6 For the embodiment of the present invention Figure 3 Schematic diagram of the enlarged structure of part A; Figure 7 This is a structural schematic diagram of the arc plate and the hollow rod in the regulating valve for automatically distributing and reducing pressure according to an embodiment of the present invention; Figure 8 This is a structural diagram of the arc plate and the water outlet in the regulating valve for automatically distributing and reducing pressure according to an embodiment of the present invention; Figure 9 For the embodiment of the present invention Figure 5 Schematic diagram of the enlarged structure of part B.

[0018] In the figure: 1. Main body; 11. Valve body; 12. Bracket; 13. Actuator motor; 14. Valve stem; 15. Valve core; 16. Arc-shaped protrusion; 17. V-shaped groove; 18. Controller; 2. Guide pressure-reducing mechanism; 21. Water inlet cavity; 22. Guide cylinder; 23. Plug; 24. Arc plate; 25. Telescopic sleeve; 26. First spring; 27. Brush; 28. Annular pressure sensor; 29. ​​Water outlet; 3. Direct pressure-reducing mechanism; 31. Annular plate; 32. First damping ring; 33. Second damping ring; 34. Groove; 35. Second spring; 4. L-shaped slider; 5. Sealing strip; 6. Limiting ring; 7. Slide groove. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 3 An embodiment of the present invention provides a regulating valve for automatically distributing pressure reduction, comprising: a main body mechanism 1, a guided pressure reduction mechanism 2 and a direct pressure reduction mechanism 3.

[0021] Among them, such as Figures 1-4 As shown, the main mechanism 1 includes a valve body 11, a valve stem 14 is provided inside the valve body 11, a valve core 15 is installed at the bottom end of the valve stem 14, the outer wall of the valve core 15 is provided with an arc-shaped protrusion 16, and a V-shaped groove 17 is provided on the arc-shaped protrusion 16. The top of the valve body 11 is installed with an actuator motor 13 through a bracket 12, and the rotating shaft of the actuator motor 13 is connected to the top end of the valve stem 14 through a coupling. When the main mechanism 1 is working, the actuator motor 13 is fixed to the top of the valve body 11 through the bracket 12, and its rotating shaft is connected to the valve stem 14 through a coupling, driving the valve stem 14 to drive the valve core 15 to rotate. The arc-shaped protrusion 16 and the V-shaped groove 17 on the outer wall of the valve core 15 can change the direction of water flow.

[0022] In this embodiment, Figures 1-6 As shown, the direct-flow pressure reduction mechanism 3 includes an annular plate 31, which is fixedly connected to the inner wall of the water inlet of the valve body 11. A first damping ring 32 is fixedly connected to one side of the annular plate 31. The outer wall of the first damping ring 32 has a plurality of grooves 34 distributed equidistantly around the circumference. A second spring 35 is fixedly connected to the inside of the groove 34, and one end of the second spring 35 is fixedly connected to the second damping ring 33.

[0023] When high-pressure water flows into the valve body 11, the direct-impact pressure reduction mechanism 3 can work first. The high-pressure water flows into the second damping ring 33 at the water inlet of the valve body 11, compressing the second spring 35 in the groove 34. The first damping ring 32 and the second damping ring 33 cooperate to provide preliminary buffering and pressure reduction, and the annular plate 31 plays a limiting role on the first damping ring 32 and the second damping ring 33.

[0024] In this embodiment, Figures 1-8 As shown, the guide pressure-reducing mechanism 2 is installed on the valve body 11. The guide pressure-reducing mechanism 2 includes an integrally formed water inlet cavity 21 arranged on the valve body 11. A guide cylinder 22 is embedded on one side of the water inlet cavity 21. The outer wall of one end of the guide cylinder 22 is connected to a plug 23 by a thread. The plug 23 can close the open end of the guide cylinder 22. A telescopic sleeve 25 is provided inside the guide cylinder 22. The telescopic sleeve 25 consists of two hollow tubes that are slidably connected to each other. One end of the telescopic sleeve 25 is fixedly connected to the inner wall of the guide cylinder 22, and the other end of the telescopic sleeve 25 is fixedly connected to an arc plate 24. The outer wall of the telescopic sleeve 25 is sleeved with a first spring 26. An annular pressure sensor 28 is installed on the inner wall of the water inlet cavity 21 close to the guide cylinder 22, and one end of the first spring 26 abuts against the annular pressure sensor 28.

[0025] When the high-pressure water flow enters the valve core 15 of the valve body 11, the arc-shaped protrusion 16 on the valve core 15 can be used to change the flow direction, and it can be guided into the water inlet cavity 21 of the guide pressure reduction mechanism 2 through the V-shaped groove 17, impacting the arc plate 24, causing the telescopic sleeve 25 to contract and compress the first spring 26. At this time, the water flow guided into the water inlet cavity 21 can push the arc plate 24 to move and contact the inner wall of the water inlet cavity 21, further weakening the impact of the high-pressure water flow on the valve body 11. At the same time, when the first spring 26 is compressed, the annular pressure sensor 28 can sense the pressure changes in real time.

[0026] Furthermore, a controller 18 is installed on the outer wall of the bracket 12. The controller 18 is electrically connected to the execution motor 13, and the controller 18 is signal-connected to the annular pressure sensor 28. The annular pressure sensor 28 is used to collect water pressure data in real time and transmit it to the controller 18. The controller 18 automatically adjusts the action of the execution motor 13 according to the preset pressure threshold and water flow changes, thereby realizing automatic opening and closing of the valve and pressure reduction regulation, ensuring that the outlet water pressure is stable within a safe range.

[0027] like Figure 5 、 Figure 7 and Figure 9As shown, the inner walls on both sides of the water inlet cavity 21 are provided with a slide groove 7, and L-shaped sliders 4 are fixedly connected on both sides of the arc plate 24. The L-shaped slider 4 is slidably installed inside the slide groove 7. The cooperation between the slide groove 7 and the L-shaped slider 4 ensures that the arc plate 24 maintains a stable straight line guide during the movement, preventing the arc plate 24 from being offset due to water flow impact, thereby ensuring the reliability of the guide pressure reduction mechanism 2.

[0028] Reference Figure 7 The arc plate 24 is fixedly connected to the limiting ring 6 on one side close to the telescopic sleeve 25, and one end of the first spring 26 is located inside the limiting ring 6. The limiting ring 6 provides a fixed support position for the first spring 26 when the arc plate 24 moves, preventing the first spring 26 from being displaced during the telescopic process.

[0029] In another embodiment, Figure 1 As shown, a brush 27 is provided on the side of the arc plate 24 close to the valve core 15, and a plurality of equally spaced water outlets 29 are provided on the side of the arc plate 24 close to the valve core 15. The water inlet of the water outlet 29 is connected to the opening at one end of the telescopic sleeve 25. When the external water channel is interconnected with the guide cylinder 22, the water source can enter the water outlet 29 in the arc plate 24 through one end of the telescopic sleeve 25. When the water flows through the telescopic sleeve 25 and flows out of the water outlet 29, it can flush the inner wall of the valve body 11 and the outer wall of the valve core 15, completing the self-cleaning operation of the main internal structure of the regulating valve. At this time, the operator can drive the valve core 15 to rotate by executing the motor 13, and rotate the brush 27 in contact with the valve core 15 to achieve physical cleaning.

[0030] During actual operation, the end of the guide cylinder 22 away from the arc plate 24 can be connected to the external clean water source pipeline through a thread. A solenoid valve is provided on the pipeline, which is controlled to open at a fixed time by the controller 18, for example, once every 24 hours, each time lasting 30 seconds. The clean water source pressure is 0.5-1MPa, and enters the water outlet 29 through the telescopic sleeve 25. At this time, the execution motor 13 drives the valve core 15 to rotate at a speed of 5r / min, and the brush 27 adheres to the outer wall of the valve core 15 to achieve cleaning.

[0031] Specifically, the outer walls of the curved plate 24 are all fixedly connected with sealing strips 5 , and the sealing strips 5 form a sealing fit between the curved plate 24 and the inner wall of the water inlet cavity 21 , effectively preventing water bypass leakage.

[0032] It should be noted that the elastic coefficient of the first spring 26 is 500-800 N / m, and the elastic coefficient of the second spring 35 is 300-500 N / m. Both are made of fatigue-resistant alloy spring steel. The first damping ring 32 and the second damping ring 33 are both made of nitrile rubber and have a water pressure resistance of ≥10 MPa.

[0033] According to the above technical solution, the working steps of this solution are summarized and sorted out: when the regulating valve provided by the present invention is used, when the high-pressure water flow enters the valve body 11, the direct pressure reduction mechanism 3 can play a role first, and the high-pressure water flow impacts the second damping ring 33 at the water inlet of the valve body 11, so that it compresses the second spring 35 in the groove 34, and the first damping ring 32 and the second damping ring 33 cooperate to initially buffer and reduce the pressure, and the annular plate 31 plays a limiting role on the first damping ring 32 and the second damping ring 33.

[0034] In addition, when the remaining high-pressure water flow enters the valve core 15 of the valve body 11, the arc-shaped protrusion 16 on the valve core 15 can be used to change the flow direction, and it can be guided into the water inlet cavity 21 of the guide pressure reduction mechanism 2 through the V-shaped groove 17, impacting the arc plate 24, causing the telescopic sleeve 25 to contract and compress the first spring 26. At this time, the water flow guided into the water inlet cavity 21 can push the arc plate 24 to move and contact the inner wall of the water inlet cavity 21, further weakening the impact of the high-pressure water flow on the valve body 11. At the same time, when the first spring 26 is compressed, the annular pressure sensor 28 can sense the pressure change in real time, and the direct pressure reduction mechanism 3 and the guide pressure reduction mechanism 2 cooperate with each other to reduce the pressure, thereby realizing automatic distribution and pressure reduction of the high-pressure water flow, and automatically regulating the pressure brought by the high-pressure water flow.

[0035] In addition, the telescopic sleeve 25 in the guide pressure-reducing mechanism 2 is composed of two hollow tubes that are slidably connected to each other. One end of the telescopic sleeve 25 is fixed to the inner wall of the guide cylinder 22, so that when the external water channel is connected to the guide cylinder 22, the water source can enter the water outlet 29 in the arc plate 24 through one end of the telescopic sleeve 25. When the water flows through the telescopic sleeve 25 and flows out from the water outlet 29, it can flush the inner wall of the valve body 11 and the outer wall of the valve core 15, completing the self-cleaning operation of the main internal structure of the regulating valve. At this time, the operator can drive the valve core 15 to rotate by executing the motor 13, and use the brush 27 to fit the valve core 15 for rotation and cleaning, thereby improving the service life of the internal structure of the regulating valve, and the cleaning work can be completed without disassembly.

[0036] Parts not described in the present invention are the same as those in the prior art or can be implemented using the prior art. Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A regulating valve for automatically distributing pressure reduction, characterized in that: It includes a main body mechanism (1), a guide pressure reduction mechanism (2) and a direct pressure reduction mechanism (3): The main body mechanism (1) comprises a valve body (11), a valve stem (14) is provided inside the valve body (11), a valve core (15) is installed at one end of the bottom of the valve stem (14), an arc-shaped protrusion (16) is provided on the outer wall of the valve core (15), and a V-shaped groove (17) is provided on the arc-shaped protrusion (16); The guiding pressure-reducing mechanism (2) is mounted on the valve body (11), and is used to guide the high-pressure water flow and perform buffering and pressure reduction when the high-pressure water flow enters the valve body (11); The direct-flow pressure-reducing mechanism (3) is installed on the inner wall of the water inlet of the valve body (11), and is used for buffering and reducing the pressure of the high-pressure water flow when the high-pressure water flow enters the valve body (11).

2. The regulating valve for automatically distributing and reducing pressure according to claim 1, characterized in that: The guide pressure-reducing mechanism (2) comprises an integrally formed water inlet cavity (21) provided on the valve body (11), a guide cylinder (22) being embedded on one side of the water inlet cavity (21), a telescopic sleeve (25) being provided inside the guide cylinder (22), the telescopic sleeve (25) being composed of two hollow tubes slidably sleeved with each other, one end of the telescopic sleeve (25) being fixedly connected to the inner wall of the guide cylinder (22), the other end of the telescopic sleeve (25) being fixedly connected to an arc-shaped plate (24), the outer wall of the telescopic sleeve (25) being sleeved with a first spring (26), an annular pressure sensor (28) being installed on the inner wall of the water inlet cavity (21) close to the guide cylinder (22), and one end of the first spring (26) being in contact with the annular pressure sensor (28).

3. The regulating valve for automatically distributing and reducing pressure according to claim 2, characterized in that: A brush (27) is provided on one side of the arc plate (24) close to the valve core (15), and a plurality of water outlet holes (29) are provided on one side of the arc plate (24) close to the valve core (15), wherein the water inlet of the water outlet hole (29) is connected to an opening at one end of the telescopic sleeve (25).

4. The regulating valve for automatically distributing and reducing pressure according to claim 1, characterized in that: The direct-flow pressure-reducing mechanism (3) comprises an annular plate (31), the annular plate (31) being fixedly connected to the inner wall of the water inlet of the valve body (11), a first damping ring (32) being fixedly connected to one side of the annular plate (31), a plurality of grooves (34) being distributed equidistantly around the circumference on the outer wall of the first damping ring (32), a second spring (35) being fixedly connected inside the groove (34), and a second damping ring (33) being fixedly connected to one end of the second spring (35).

5. The regulating valve for automatically distributing and reducing pressure according to claim 2, characterized in that: An actuator motor (13) is mounted on the top of the valve body (11) via a bracket (12), and a rotating shaft of the actuator motor (13) is connected to one end of the top of the valve stem (14) via a coupling.

6. The regulating valve for automatically distributing and reducing pressure according to claim 5, characterized in that: A controller (18) is installed on the outer wall of the bracket (12), the controller (18) is electrically connected to the execution motor (13), and the controller (18) is signal-connected to the annular pressure sensor (28).

7. The regulating valve for automatically distributing and reducing pressure according to claim 2, characterized in that: Both inner walls of the water inlet cavity (21) are provided with sliding grooves (7), and both sides of the arc-shaped plate (24) are fixedly connected with L-shaped sliders (4), and the L-shaped sliders (4) are slidably installed inside the sliding grooves (7).

8. The regulating valve for automatically distributing and reducing pressure according to claim 2, characterized in that: Sealing strips (5) are fixedly connected to the outer walls of the curved plate (24) on all four sides.

9. The regulating valve for automatically distributing and reducing pressure according to claim 2, characterized in that: A side of the arc-shaped plate (24) close to the telescopic sleeve (25) is fixedly connected to a limiting ring (6), and one end of the first spring (26) is located inside the limiting ring (6).

10. The regulating valve for automatically distributing and reducing pressure according to claim 2, characterized in that: The outer wall of one end of the guide cylinder (22) is connected to a plug (23) via a thread.

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