Stop regulating valve capable of automatically controlling flow

Abstract

The utility model discloses a flow self-control cut-off regulating valve which comprises a valve body, a splitter plate, a port regulating assembly, a power assembly and a pressure regulating assembly, the splitter plate is fixedly installed in the valve body, and the port regulating assembly is installed in the valve body. According to the utility model, the floating piston moves to the position of the induction coil corresponding to the set value, and at a dynamic balance position of the set value, the specific position of the floating piston is determined by the corresponding induction coil and the induction coils near the two sides of the corresponding induction coil; the left-right movement of the floating piston at the dynamic balance position controls the forward rotation or the reverse rotation of the power motor, so that the floating piston is always at the new dynamic balance position, the flow is sensitively sensed, the pressure at the outlet end of the pressure stabilizing pipe is maintained, and the purpose of stably controlling flow output is achieved. The floating piston moves left and right at the dynamic balance position to more accurately control the positions of the closed cylinder and the cage-shaped cylinder to adjust the opening degree of the valve port, and the purpose of controlling flow stable output through the adjusting valve is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of regulating valves, in particular to a flow-automatically controlled cut-off regulating valve. Background Art

[0002] In the fields of industrial production and automation control, flow-controlled stop valves are key components for ensuring smooth process flows and improving energy efficiency. However, despite continuous technological advancements, existing stop valves still face numerous challenges in controlling flow output stability. These challenges not only impact production efficiency but also pose potential threats to product quality and safety.

[0003] The design concept of traditional globe control valves aims to achieve precise control of fluid flow by finely adjusting the position of the valve core. However, in actual applications, the stability of flow output is often restricted by various factors, the most prominent of which are the response lag of the control system and the inaccuracy of the valve core position adjustment. When process conditions change, such as pressure fluctuations, temperature changes, or fine-tuning of fluid properties, the control valve needs to quickly adjust its opening to maintain the set flow rate. However, existing electronic control equipment often has difficulty in achieving instant response, resulting in delays in flow regulation. This lag is particularly noticeable in dynamically changing process flows, which can easily cause flow fluctuations and affect the continuity and stability of the process.

[0004] The accuracy of valve core position adjustment directly impacts flow control accuracy. Traditional globe control valves typically rely on mechanical or electronic actuators to change the valve core position. However, due to mechanical wear, accumulated clearance, or nonlinear response of the actuator, there may be deviations between the actual valve core position and the set value. This deviation is particularly significant during long-term operation or under extreme operating conditions, causing flow output to deviate from expectations and affecting the precise control of process parameters.

[0005] Existing globe control valves can also compromise flow control stability when handling complex fluids, such as slurries containing solid particles or high-viscosity liquids. Impurities in the fluid can seize the valve core or cause wear on the valve seat, leading to poor valve sealing and affecting accurate flow regulation. The flow characteristics of high-viscosity fluids can also complicate regulation, especially at low flow rates. Slight changes in valve opening may not produce the expected flow rate change and may instead cause output instability.

[0006] After long-term operation, dirt and corrosion products may accumulate within the body of a flow-controlled globe valve. This not only affects the flow path's smoothness but also alters the fluid's flow characteristics, leading to increased uncertainty in flow control. Cleaning and maintenance are not only time-consuming and labor-intensive, but, if not performed promptly, can gradually deteriorate flow control stability and even lead to safety incidents.

[0007] Existing globe control valve designs often focus on optimizing performance under a single operating condition, but their adaptability and flexibility are limited when faced with changing production environments. For example, when switching from one fluid to another or transitioning from one process stage to another, the control valve may require a long time to adapt to the new operating conditions, resulting in unstable flow output during the initial switching period.

[0008] Therefore, how to provide a stop regulating valve with automatic flow control is a problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0009] One purpose of the present invention is to propose a flow-automatic shut-off regulating valve. The present invention moves a floating piston to the position of an induction coil corresponding to a set value. At a dynamic balance of the set value, the corresponding induction coil and the induction coils near both sides of the corresponding induction coil determine the specific position of the floating piston. The left and right movement of the floating piston at the dynamic balance controls the forward or reverse rotation of the power motor, so that the floating piston is always at this new dynamic balance to achieve the size of the sensitive induction flow to maintain the pressure at the outlet end of the voltage-stabilizing tube, thereby achieving the purpose of stably controlling the flow output. The left and right movement of the floating piston at the dynamic balance more accurately controls the position of the closed cylinder and the cage cylinder to adjust the size of the valve opening, thereby controlling the flow output stably through the regulating valve.

[0010] According to an embodiment of the utility model, a flow-automatic shut-off regulating valve includes a valve body, a diverter plate, a regulating port assembly, a power assembly and a pressure regulating assembly, wherein the diverter plate is fixedly installed in the valve body, the regulating port assembly is installed in the valve body, the power assembly is fixedly installed on the valve body, and both ends of the pressure regulating assembly are fixedly installed at the bottom of both ends of the valve body.

[0011] Furthermore, the valve body is composed of a high-pressure pipe, a first flange, a water diverter valve, a pressure-stabilizing tube and a second flange, one end of the high-pressure pipe is fixedly mounted on the first flange, the other end of the high-pressure pipe is fixedly mounted on one end of the water diverter valve, one end of the pressure-stabilizing tube is fixedly mounted on the other end of the water diverter valve, and the second flange is fixedly mounted on the other end of the pressure-stabilizing tube.

[0012] Furthermore, the regulating port assembly includes a shielding cover, a sliding side plate, a closed cylinder and a cage-shaped cylinder, wherein the outer wall of the shielding cover is fixedly mounted on the inner side of the diverter plate, the outer side of the sliding side plate is fixedly mounted on the inner wall of the shielding cover, the outer wall of the closed cylinder is slidably mounted on the sliding side plate, and the cage-shaped cylinder is fixedly mounted on the closed cylinder toward one end of the high-pressure pipe.

[0013] Furthermore, the adjustment port assembly also includes a first closing protrusion, a first sealing rubber ring, a second closing protrusion and a second sealing rubber ring, wherein the first closing protrusion is fixedly installed on the inner wall of the open end of the shielding cover, the first sealing rubber ring is fixedly installed in the middle position of the first closing protrusion, the first sealing rubber ring is slidably sleeved on the outer wall of the closing tube, the second closing protrusion is fixedly installed on the outer wall of one end of the closing tube close to the cage-shaped tube, and the second sealing rubber ring is fixedly embedded in the outer wall of one end of the closing tube close to the cage-shaped tube.

[0014] Furthermore, the power assembly includes a power box, a support plate, a processor, a first support plate and a second support plate, wherein the bottom of the power box is fixedly mounted on the outer wall of the water diversion valve, one end of the support plate is fixedly mounted on the outer wall of the power box, the other end of the support plate is fixedly mounted on the outer wall of the water diversion valve, the top of the processor is fixedly mounted on the inner top of the power box, the first support plate is fixedly mounted on the inner bottom of the power box, and the second support plate is fixedly mounted on the inner bottom of the power box.

[0015] Furthermore, the power assembly also includes a power motor, a first power gear, a second power gear, a first transmission rod, a bevel gear set and a second transmission rod, wherein the power motor is fixedly mounted inside the power box, the transmission shaft of the power motor is rotatably mounted on the first support plate, the first power gear is fixedly mounted on the transmission shaft of the power motor, the second power gear is meshed with the first power gear, the first transmission rod is rotatably mounted on the second support plate, the top of the first transmission rod is fixedly mounted on the bottom of the second power gear, the bottom of the first transmission rod is fixedly mounted on the input end bevel gear of the bevel gear set, the output end bevel gear of the bevel gear set is fixedly mounted on one end of the second transmission rod, the other end of the second transmission rod is rotatably inserted into the water diversion valve, and the end of the second transmission rod located in the water diversion valve extends into the shielding cover.

[0016] Furthermore, the power assembly also includes a rocking plate, a pendulum plate, an auxiliary plate and an auxiliary ring, wherein one end of the rocking plate is fixedly mounted on the second transmission rod, the other end of the rocking plate is rotatably mounted on one end of the pendulum plate, the other end of the pendulum plate is rotatably mounted on the middle position of the auxiliary plate, both ends of the auxiliary plate are fixedly mounted on the inner wall of the auxiliary ring, and the outer wall of the auxiliary ring is fixedly mounted on the inner wall of the closed cylinder.

[0017] Furthermore, the pressure regulating assembly includes a pressure regulating tube, a floating piston and a limiting ring. One end of the pressure regulating tube is fixedly installed at the bottom of the high-pressure tube, and the other end of the pressure regulating tube is fixedly installed at the bottom of the pressure-stabilizing tube. The floating piston is slidably installed in the pressure regulating tube, and the limiting ring is fixedly installed on both sides of the interior of the pressure regulating tube.

[0018] Furthermore, the voltage regulating assembly also includes a permanent magnet, an induction coil, an induction tube and a resistance spring, wherein the permanent magnet is fixedly mounted on both ends of the floating piston, a plurality of induction coils are provided, and the plurality of induction coils are arranged equidistantly, the inner wall of the induction coil is fixedly mounted on the outer wall of the voltage regulating tube, the induction tube is sleeved on the induction coil, and both ends of the induction tube are fixedly sleeved on the outer wall of the voltage regulating tube, one end of the resistance spring is fixedly mounted on both ends of the floating piston, and the other end of the resistance spring is fixedly mounted on the limit ring.

[0019] Furthermore, it also includes a cable tube and a pressure sensor, one end of the cable tube is fixedly installed on the bottom of the power box, one end of the cable tube is fixedly installed on the sensing tube, and the pressure sensor is fixedly installed on the voltage-stabilizing tube.

[0020] The beneficial effects of the utility model are:

[0021] The utility model moves the floating piston to the position of the induction coil corresponding to the set value. At a dynamic balance of the set value, the corresponding induction coil and the induction coils near the corresponding induction coil on both sides determine the specific position of the floating piston. The left and right movement of the floating piston at the dynamic balance controls the forward or reverse rotation of the power motor, so that the floating piston is always at this new dynamic balance to achieve the size of the sensitive induction flow to maintain the pressure at the outlet end of the voltage-stabilizing tube, thereby achieving the purpose of stably controlling the flow output. The left and right movement of the floating piston at the dynamic balance more accurately controls the position of the closed cylinder and the cage cylinder to adjust the size of the valve opening, thereby controlling the flow output stably through the regulating valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 This is a schematic diagram of the overall structure of a flow-automatic control stop regulating valve proposed by the present invention;

[0024] Figure 2 This is a structural diagram of an induction coil of a flow-automatic control cut-off regulating valve proposed by the present invention;

[0025] Figure 3 This is a cross-sectional view of a water diverter valve of a flow-automatic control stop regulating valve proposed by the present invention;

[0026] Figure 4 This utility model proposes a flow automatic control stop regulating valve Figure 3 A magnified view of point A;

[0027] Figure 5 This utility model proposes a flow automatic control stop regulating valve Figure 3 Enlarged view of point B;

[0028] Figure 6 This utility model proposes a flow automatic control stop regulating valve Figure 3 Enlarged view of point C;

[0029] Figure 7 This is a structural diagram of a discharge pipe of a flow-automatic stop regulating valve proposed by the present invention;

[0030] Figure 8 This utility model proposes a flow automatic control stop regulating valve Figure 7 Enlarged view of point D;

[0031] Figure 9 The utility model is a structural schematic diagram of a resistance spring of a flow-automatic stop regulating valve.

[0032] Figure: 1. Valve body; 1.1. High-pressure pipe; 1.2. First flange; 1.3. Water diverter valve; 1.4. Pressure-stabilizing tube; 1.5. Second flange; 2. Diverter plate; 3. Adjustment port assembly; 3.1. Shielding cover; 3.2. Sliding side plate; 3.3. Closing cylinder; 3.4. Cage-shaped cylinder; 3.5. First sealing protrusion; 3.6. First sealing rubber ring; 3.7. Second sealing protrusion; 3.8. Second sealing rubber ring; 4. Power assembly; 4.1. Power box; 4.2. Support plate; 4.3. Processor; 4.4. First support plate; 4. 5. Second support plate; 4.6. Power motor; 4.7. First power gear; 4.8. Second power gear; 4.9. First transmission rod; 4.10. Bevel gear set; 4.11. Second transmission rod; 4.12. Rocker plate; 4.13. Pendulum plate; 4.14. Auxiliary plate; 4.15. Auxiliary ring; 5. Pressure regulating assembly; 5.1. Pressure regulating tube; 5.2. Floating piston; 5.3. Limiting ring; 5.4. Permanent magnet; 5.5. Induction coil; 5.6. Induction tube; 5.7. Resistance spring; 6. Wire tube; 7. Pressure sensor. DETAILED DESCRIPTION

[0033] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0034] Please refer to Figures 1 to 9The utility model provides a stop regulating valve with automatic flow control, including a valve body 1, a diverter plate 2, an adjustment port assembly 3, a power assembly 4 and a pressure regulating assembly 5, wherein the diverter plate 2 is fixedly installed in the valve body 1, the adjustment port assembly 3 is installed in the valve body 1, the power assembly 4 is fixedly installed on the valve body 1, and both ends of the pressure regulating assembly 5 are fixedly installed at the bottom of both ends of the valve body 1. It also includes a cable tube 6 and a pressure sensor 7, one end of the cable tube 6 is fixedly installed at the bottom of the power box 4.1, one end of the cable tube 6 is fixedly installed on the sensing tube 5.6, and the pressure sensor 7 is fixedly installed on the voltage-stabilizing tube 1.4.

[0035] Specifically, the valve body 1 consists of a high-pressure pipe 1.1, a first flange 1.2, a water diverter valve 1.3, a pressure-stabilizing tube 1.4 and a second flange 1.5. One end of the high-pressure pipe 1.1 is fixedly mounted on the first flange 1.2. The high-pressure pipe 1.1 is used to connect to the upstream pipeline. The upstream pressure is borne inside the high-pressure pipe 1.1. The first flange 1.2 is used to connect to external equipment. The other end of the high-pressure pipe 1.1 is fixedly mounted on one end of the water diverter valve 1.3. One end of the pressure-stabilizing tube 1.4 is fixedly mounted on the other end of the water diverter valve 1.3. The second flange 1.5 is fixedly mounted on the other end of the pressure-stabilizing tube 1.4. The pressure-stabilizing tube 1.4 is used to connect to the downstream pipeline. The downstream pressure is borne inside the pressure-stabilizing tube 1.4. The second flange 1.5 is used to connect to external equipment.

[0036] More specifically, the regulating port assembly 3 includes a shielding cover 3.1, a sliding side plate 3.2, a closing cylinder 3.3 and a cage-shaped cylinder 3.4, wherein the outer wall of the shielding cover 3.1 is fixedly mounted on the inner side of the diverter plate 2, the outer side of the sliding side plate 3.2 is fixedly mounted on the inner wall of the shielding cover 3.1, the outer wall of the closing cylinder 3.3 is slidably mounted on the sliding side plate 3.2, and the cage-shaped cylinder 3.4 is fixedly mounted on the closing cylinder 3.3 at one end facing the high-pressure pipe 1.1. The size of the valve opening is adjusted by displacing the position of the closing cylinder 3.3 and the cage-shaped cylinder 3.4, and the flow rate and the pressure at the outlet end are controlled.

[0037] The adjustment port assembly 3 also includes a first sealing protrusion 3.5, a first sealing rubber ring 3.6, a second sealing protrusion 3.7 and a second sealing rubber ring 3.8, wherein the first sealing protrusion 3.5 is fixedly mounted on the inner wall of the open end of the shielding cover 3.1, the first sealing rubber ring 3.6 is fixedly mounted in the middle position of the first sealing protrusion 3.5, the first sealing rubber ring 3.6 is slidably sleeved on the outer wall of the closing cylinder 3.3, the second sealing protrusion 3.7 is fixedly mounted on the outer wall of one end of the closing cylinder 3.3 close to the cage-shaped cylinder 3.4, and the second sealing rubber ring 3.8 is fixedly embedded in the outer wall of one end of the closing cylinder 3.3 close to the cage-shaped cylinder 3.4. The first sealing rubber ring 3.6 and the second sealing rubber ring 3.8 are used for better sealing.

[0038] More specifically, the power assembly 4 includes a power box 4.1, a support plate 4.2, a processor 4.3, a first support plate 4.4 and a second support plate 4.5, wherein the bottom of the power box 4.1 is fixedly mounted on the outer wall of the water diversion valve 1.3, and a control panel is provided on the top of the power box 4.1. One end of the support plate 4.2 is fixedly mounted on the outer wall of the power box 4.1, and the other end of the support plate 4.2 is fixedly mounted on the outer wall of the water diversion valve 1.3. The top of the processor 4.3 is fixedly mounted on the inner top of the power box 4.1. The processor 4.3 is used to process the sensing signal of the voltage regulating assembly 5 and control the operation of the power motor 4.6. The first support plate 4.4 is fixedly mounted on the inner bottom of the power box 4.1, and the second support plate 4.5 is fixedly mounted on the inner bottom of the power box 4.1.

[0039] The power assembly 4 also includes a power motor 4.6, a first power gear 4.7, a second power gear 4.8, a first transmission rod 4.9, a bevel gear set 4.10 and a second transmission rod 4.11, wherein the power motor 4.6 is fixedly mounted inside the power box 4.1, the transmission shaft of the power motor 4.6 is rotatably mounted on the first support plate 4.4, the power motor 4.6 provides forward or reverse power, the first power gear 4.7 is fixedly mounted on the transmission shaft of the power motor 4.6, the second power gear 4.8 is meshed with the first power gear 4.7, the first transmission rod 4.9 is rotatably mounted on the second support plate 4.5, and the first transmission rod 4.9 is rotatably mounted on the second support plate 4.5. The top of the moving rod 4.9 is fixedly mounted on the bottom of the second power gear 4.8. The bottom of the first transmission rod 4.9 is fixedly mounted on the input bevel gear of the bevel gear set 4.10. The output bevel gear of the bevel gear set 4.10 is fixedly mounted on one end of the second transmission rod 4.11. The other end of the second transmission rod 4.11 is rotatably inserted into the water diverter valve 1.3. The end of the second transmission rod 4.11 located in the water diverter valve 1.3 extends into the shielding cover 3.1. The first power gear 4.7, the second power gear 4.8, the first transmission rod 4.9, the bevel gear set 4.10 and the second transmission rod 4.11 are used for power transmission.

[0040] The power assembly 4 further includes a rocking plate 4.12, a pendulum plate 4.13, an auxiliary plate 4.14, and an auxiliary ring 4.15. One end of the rocking plate 4.12 is fixedly mounted on the second transmission rod 4.11, the other end of the rocking plate 4.12 is rotatably mounted on one end of the pendulum plate 4.13, the other end of the pendulum plate 4.13 is rotatably mounted in the middle of the auxiliary plate 4.14, both ends of the auxiliary plate 4.14 are fixedly mounted on the inner wall of the auxiliary ring 4.15, and the outer wall of the auxiliary ring 4.15 is fixedly mounted on the inner wall of the sealing cylinder 3.3.

[0041] More specifically, the pressure-regulating assembly 5 includes a pressure-regulating tube 5.1, a floating piston 5.2, and a limit ring 5.3. One end of the pressure-regulating tube 5.1 is fixedly mounted on the bottom of the high-pressure tube 1.1, and the other end of the pressure-regulating tube 5.1 is fixedly mounted on the bottom of the pressure-stabilizing tube 1.4. The floating piston 5.2 is slidably mounted in the pressure-regulating tube 5.1, and the limit ring 5.3 is fixedly mounted on both sides of the interior of the pressure-regulating tube 5.1. The limit ring 5.3 limits the range of left and right movement of the floating piston 5.2 in the pressure-regulating tube 5.1.

[0042] The voltage-regulating assembly 5 further includes a permanent magnet 5.4, an induction coil 5.5, an induction tube 5.6, and a resistance spring 5.7. The permanent magnet 5.4 is fixedly mounted on both ends of the floating piston 5.2. A plurality of induction coils 5.5 are provided, arranged equidistantly. The inner wall of the induction coil 5.5 is fixedly mounted on the outer wall of the voltage-regulating tube 5.1. The induction tube 5.6 is sleeved onto the induction coil 5.5, and both ends of the induction tube 5.6 are fixedly sleeved onto the outer wall of the voltage-regulating tube 5.1. The permanent magnet 5.4 and induction coil 5.5 are used for triggering induction. One end of the resistance spring 5.7 is fixedly mounted on both ends of the floating piston 5.2, and the other end of the resistance spring 5.7 is fixedly mounted on the limit ring 5.3.

[0043] Furthermore, the high-pressure pipe 1.1 is used to connect to the upstream pipeline, and the upstream pressure is borne inside the high-pressure pipe 1.1. The pressure-stabilizing tube 1.4 is used to connect to the downstream pipeline, and the downstream pressure is borne inside the pressure-stabilizing tube 1.4. The utility model can be used when the upstream pressure is greater than the downstream pressure.

[0044] High-pressure pipe 1.1 is connected to the upstream pipeline of the external device through first flange 1.2, and pressure-stabilizing tube 1.4 is connected to the downstream pipeline of the external device through second flange 1.5. The valve opening is adjusted by controlling the position of closing cylinder 3.3 and cage cylinder 3.4, thereby controlling the flow rate and outlet pressure. The outlet pressure of pressure-stabilizing tube 1.4 is then controlled by the pressure difference between high-pressure pipe 1.1 and pressure-stabilizing tube 1.4.

[0045] Enter the pressure setting value of the voltage regulator tube 1.4 on the control panel and start the regulating valve. The forward and reverse rotation of the power motor 4.6 drives the rotation of the first power gear 4.7. The first power gear 4.7 is meshed with the second power gear 4.8. The first power gear 4.7 drives the rotation of the second power gear 4.8. The rotation of the second power gear 4.8 drives the rotation of the first transmission rod 4.9. The rotation of the first transmission rod 4.9 drives the input end bevel gear of the bevel gear set 4.10 to rotate. The rotation of the input end bevel gear of the bevel gear set 4.10 drives the output end bevel gear of the bevel gear set 4.10. The wheel rotates, and the output bevel gear of the bevel gear set 4.10 rotates, driving the second transmission rod 4.11 to rotate. The rotation of the second transmission rod 4.11 drives the reciprocating swing of the rocker plate 4.12. The reciprocating swing of the rocker plate 4.12 drives the reciprocating swing of the pendulum plate 4.13. The reciprocating swing of the pendulum plate 4.13 drives the auxiliary plate 4.14 and the auxiliary ring 4.15 to move back and forth. The back and forth displacement of the auxiliary ring 4.15 drives the closing cylinder 3.3 and the cage cylinder 3.4 to move back and forth at the valve port of the water diverter valve 1.3, thereby adjusting the valve port opening of the valve body 1, thereby achieving the purpose of regulating flow and pressure of the regulating valve.

[0046] The regulating valve regulates the flow between the upstream and downstream pipelines. This means that even if the pressure in the upstream pipeline fluctuates, the inlet pressure of the downstream pipeline can be kept stable at the set value. The two ends of the pressure regulating pipe 5.1 are connected to the high-pressure pipe 1.1 and the pressure-stabilizing pipe 1.4. A floating piston 5.2 is installed in the pressure regulating pipe 5.1.

[0047] 1. Response of floating piston 5.2:

[0048] 1.1. The pressure in the upstream pipeline is unstable, which means that the pressure on the pressure regulating pipe 5.1 on the upstream pipeline side will also fluctuate.

[0049] 1.2. When the pressure in the upstream pipeline increases, the pressure on the side of the pressure regulating pipe 5.1 close to the upstream pipeline will also increase, causing the floating piston 5.2 to move toward the downstream pipeline.

[0050] 1.3. When the pressure in the upstream pipeline drops, the pressure on the upstream pipeline side of the pressure regulating pipe 5.1 decreases, and the floating piston 5.2 may move toward the upstream pipeline. However, this movement is usually limited by the regulating action of the regulating valve, because the regulating valve will minimize the fluid flow from the upstream pipeline to the downstream pipeline to maintain a stable pressure in the downstream pipeline.

[0051] 2. Dynamic balance of floating piston 5.2:

[0052] 2.1. The position of the floating piston 5.2 in the pressure regulating pipe 5.1 will change dynamically according to the pressure fluctuation of the upstream pipeline, but its movement range will be limited by the regulating effect of the regulating valve.

[0053] 2.2. When the pressure in the upstream pipeline increases, the floating piston 5.2 tends to move toward the downstream pipeline until a new dynamic equilibrium is reached, at which point the pressure difference on both sides of the floating piston 5.2 in the pressure regulating pipe 5.1 matches the pressure difference between the upstream and downstream pipelines.

[0054] 2.3. When the pressure in the upstream pipeline drops, the floating piston 5.2 may move toward the upstream pipeline side, but will not exceed the position determined by the minimum pressure difference set by the regulating valve.

[0055] The floating piston 5.2 will automatically adjust its position in the pressure regulating pipe 5.1 according to the pressure of the upstream pipeline and the pressure of the downstream pipeline.

[0056] The floating piston 5.2 drives permanent magnets 5.4 on both sides. Multiple induction coils 5.5 are mounted on the voltage regulating tube 5.1 (i.e., multiple induction coils 5.5 are equivalent to one scale value). The movement of the floating piston 5.2 drives the permanent magnets 5.4 through the induction coils 5.5. The induction coils 5.5 are cut by the magnetic field of the permanent magnets 5.4, and the induction coils 5.5 generate electrical signals. The electrical signals generated by the induction coils 5.5 are transmitted to the processor 4.3. The set value on the control panel corresponds to one induction coil 5.5, which controls the sealing cylinder 3.3 and the cage cylinder 3.4 through the power motor 4.6. The position of the floating piston 5.2 adjusts the size of the valve opening and controls the flow rate and the pressure at the outlet, so that the floating piston 5.2 moves to the position of the induction coil 5.5 corresponding to the set value (i.e., a dynamic equilibrium point of the set value). The corresponding induction coil 5.5 and the induction coils 5.5 on both sides of the corresponding induction coil 5.5 determine the specific position of the floating piston 5.2. The left and right movement of the floating piston 5.2 at the dynamic equilibrium point controls the forward or reverse rotation of the power motor 4.6, so that the floating piston 5.2 is always at this new dynamic equilibrium, thereby maintaining the pressure at the outlet of the voltage-stabilizing tube 1.4.

[0057] The floating piston 5.2 is moved by the pressure difference between the upstream and downstream sides of the pressure regulating tube 5.1. This pressure difference is limited in scope; the difference between the upstream and downstream pressures cannot be too large. To address this issue, a resistance spring 5.7 is added to each end of the floating piston 5.2 to expand the pressure difference and better maintain the pressure at the outlet of the pressure regulating tube 1.4.

[0058] The pressure sensor 7 detects the pressure at the outlet of the voltage regulator tube 1.4 and further calibrates the pressure of the voltage regulator tube 1.4.

[0059] The utility model moves the floating piston 5.2 to the position of the induction coil 5.5 corresponding to the set value (i.e., a dynamic balance point of the set value), and the corresponding induction coil 5.5 and the induction coils 5.5 near the corresponding induction coil 5.5 on both sides determine the specific position of the floating piston 5.2. The left and right movement of the floating piston 5.2 at the dynamic balance point controls the forward or reverse rotation of the power motor 4.6, so that the floating piston 5.2 is always at this new dynamic balance point to maintain the pressure at the outlet end of the voltage-stabilizing tube 1.4, thereby achieving the purpose of stably controlling the flow output. The left and right movement of the floating piston 5.2 at the dynamic balance point more accurately controls the position of the closed cylinder 3.3 and the cage cylinder 3.4 to adjust the size of the valve opening, thereby controlling the flow output through the regulating valve for stable output.

[0060] The above description is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A flow-controlled stop regulating valve, characterized in that: The invention comprises a valve body (1), a diverter plate (2), an orifice regulating assembly (3), a power assembly (4) and a pressure regulating assembly (5), wherein the diverter plate (2) is fixedly mounted in the valve body (1), the orifice regulating assembly (3) is mounted in the valve body (1), the power assembly (4) is fixedly mounted on the valve body (1), and both ends of the pressure regulating assembly (5) are fixedly mounted on the bottom ends of the valve body (1).

2. A flow-automatic stop regulating valve according to claim 1, characterized in that: The valve body (1) is composed of a high-pressure pipe (1.1), a first flange (1.2), a water diversion valve (1.3), a pressure-stabilizing pipe (1.4) and a second flange (1.5); one end of the high-pressure pipe (1.1) is fixedly mounted on the first flange (1.2); the other end of the high-pressure pipe (1.1) is fixedly mounted on one end of the water diversion valve (1.3); one end of the pressure-stabilizing pipe (1.4) is fixedly mounted on the other end of the water diversion valve (1.3); and the second flange (1.5) is fixedly mounted on the other end of the pressure-stabilizing pipe (1.4).

3. The flow automatic control stop regulating valve according to claim 1, characterized in that: The regulating port assembly (3) comprises a shielding cover (3.1), a sliding side plate (3.2), a closed cylinder (3.3) and a cage-shaped cylinder (3.4), wherein the outer wall of the shielding cover (3.1) is fixedly mounted on the inner side of the diverter plate (2), the outer side of the sliding side plate (3.2) is fixedly mounted on the inner wall of the shielding cover (3.1), the outer wall of the closed cylinder (3.3) is slidably mounted on the sliding side plate (3.2), and the cage-shaped cylinder (3.4) is fixedly mounted on the closed cylinder (3.3) at one end facing the high-pressure pipe (1.1).

4. A flow-automatic stop regulating valve according to claim 3, characterized in that: The adjustment port assembly (3) further comprises a first sealing protrusion (3.5), a first sealing rubber ring (3.6), a second sealing protrusion (3.7) and a second sealing rubber ring (3.8), wherein the first sealing protrusion (3.5) is fixedly mounted on the inner wall of the open end of the shielding cover (3.1), the first sealing rubber ring (3.6) is fixedly mounted at the middle position of the first sealing protrusion (3.5), the first sealing rubber ring (3.6) is slidably sleeved on the outer wall of the sealing cylinder (3.3), the second sealing protrusion (3.7) is fixedly mounted on the outer wall of one end of the sealing cylinder (3.3) close to the cage-shaped cylinder (3.4), and the second sealing rubber ring (3.8) is fixedly embedded in the outer wall of one end of the sealing cylinder (3.3) close to the cage-shaped cylinder (3.4).

5. The flow automatic control stop regulating valve according to claim 1, characterized in that: The power assembly (4) comprises a power box (4.1), a support plate (4.2), a processor (4.3), a first support plate (4.4) and a second support plate (4.5), wherein the bottom of the power box (4.1) is fixedly mounted on the outer wall of the water diversion valve (1.3), one end of the support plate (4.2) is fixedly mounted on the outer wall of the power box (4.1), the other end of the support plate (4.2) is fixedly mounted on the outer wall of the water diversion valve (1.3), the top of the processor (4.3) is fixedly mounted on the inner top of the power box (4.1), the first support plate (4.4) is fixedly mounted on the inner bottom of the power box (4.1), and the second support plate (4.5) is fixedly mounted on the inner bottom of the power box (4.1).

6. A flow-automatic stop regulating valve according to claim 5, characterized in that: The power assembly (4) further comprises a power motor (4.6), a first power gear (4.7), a second power gear (4.8), a first transmission rod (4.9), a bevel gear set (4.10) and a second transmission rod (4.11), wherein the power motor (4.6) is fixedly mounted inside the power box (4.1), the transmission shaft of the power motor (4.6) is rotatably mounted on the first support plate (4.4), the first power gear (4.7) is fixedly mounted on the transmission shaft of the power motor (4.6), the second power gear (4.8) is meshed with the first power gear (4.7), and the first The transmission rod (4.9) is rotatably mounted on the second support plate (4.5); the top of the first transmission rod (4.9) is fixedly mounted on the bottom of the second power gear (4.8); the bottom of the first transmission rod (4.9) is fixedly mounted on the input-end bevel gear of the bevel gear set (4.10); the output-end bevel gear of the bevel gear set (4.10) is fixedly mounted on one end of the second transmission rod (4.11); the other end of the second transmission rod (4.11) is rotatably inserted into the water diversion valve (1.3); and the end of the second transmission rod (4.11) located in the water diversion valve (1.3) extends into the shielding cover (3.1).

7. The flow automatic control stop regulating valve according to claim 6, characterized in that: The power assembly (4) further comprises a rocking plate (4.12), a swing plate (4.13), an auxiliary plate (4.14) and an auxiliary ring (4.15), wherein one end of the rocking plate (4.12) is fixedly mounted on the second transmission rod (4.11), the other end of the rocking plate (4.12) is rotatably mounted on one end of the swing plate (4.13), the other end of the swing plate (4.13) is rotatably mounted at the middle position of the auxiliary plate (4.14), both ends of the auxiliary plate (4.14) are fixedly mounted on the inner wall of the auxiliary ring (4.15), and the outer wall of the auxiliary ring (4.15) is fixedly mounted on the inner wall of the closed cylinder (3.3).

8. The flow automatic control stop regulating valve according to claim 1, characterized in that: The pressure regulating assembly (5) comprises a pressure regulating tube (5.1), a floating piston (5.2) and a limiting ring (5.3); one end of the pressure regulating tube (5.1) is fixedly mounted on the bottom of the high-pressure tube (1.1); the other end of the pressure regulating tube (5.1) is fixedly mounted on the bottom of the pressure-stabilizing tube (1.4); the floating piston (5.2) is slidably mounted in the pressure regulating tube (5.1); and the limiting ring (5.3) is fixedly mounted on both sides of the interior of the pressure regulating tube (5.1).

9. The flow automatic control stop regulating valve according to claim 8, characterized in that: The voltage regulating assembly (5) further comprises a permanent magnet (5.4), an induction coil (5.5), an induction tube (5.6) and a resistance spring (5.7), wherein the permanent magnet (5.4) is fixedly mounted on both ends of the floating piston (5.2), a plurality of induction coils (5.5) are provided, and the plurality of induction coils (5.5) are arranged at equal intervals, the inner wall of the induction coil (5.5) is fixedly mounted on the outer wall of the voltage regulating tube (5.1), the induction tube (5.6) is sleeved on the induction coil (5.5), and both ends of the induction tube (5.6) are fixedly sleeved on the outer wall of the voltage regulating tube (5.1), one end of the resistance spring (5.7) is fixedly mounted on both ends of the floating piston (5.2), and the other end of the resistance spring (5.7) is fixedly mounted on the limiting ring (5.3).

10. The flow automatic control stop regulating valve according to claim 1, characterized in that: It also includes a cable duct (6) and a pressure sensor (7), one end of the cable duct (6) is fixedly mounted on the bottom of the power box (4.1), one end of the cable duct (6) is fixedly mounted on the sensing tube (5.6), and the pressure sensor (7) is fixedly mounted on the voltage-stabilizing tube (1.4).

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