Automatically controlled flow valve

Abstract

The utility model discloses an automatic control flow valve belongs to liquid flow control's technical field, wherein, including measurement response subassembly, control drive subassembly, control circuit, control drive subassembly includes driver, valve, valve body pipeline, and measurement response subassembly includes measurement pipeline, two ultrasonic sensors, valve body pipeline installs on measurement pipeline, and the valve is movably arranged in the valve body pipeline, and the valve installs the output end of driver, and the driver installs on the valve body pipeline, two ultrasonic sensors all install on measurement pipeline, when having liquid flow in measurement pipeline, signal is with liquid as carrier and flows to another ultrasonic sensor, if flow rate is fast, the response time between two ultrasonic sensors will shorten, calculates the flow rate of liquid, and ultrasonic sensor will liquid flow rate signal transmission to control circuit, if liquid flow rate is too fast, then control circuit will send control signal to driver, makes driver adjust valve, and controls the flow rate of liquid.

Description

Technical Field

[0001] This utility model relates to the technical field of liquid flow control, and in particular to an automatic control flow valve. Background Technology

[0002] Valves are control components in pipeline fluid transport systems. They are used to change the cross-sectional area of ​​the passage and the direction of medium flow, and have functions such as guiding, stopping, regulating, throttling, checking back, diverting, or overflowing and relieving pressure. Valves used for fluid control range in nominal diameter from extremely small instrument valves to industrial pipeline valves with diameters up to 10m. Valves can operate according to predetermined requirements under the action of pressure, temperature, or other forms of sensor signals, or they can simply open or close without relying on sensor signals. Valves rely on drive or automatic mechanisms to make the opening and closing parts move up and down, slide, swing, or rotate, thereby changing the size of their flow channel area to achieve their control function.

[0003] However, in existing pipeline systems, the flow rate is generally adjusted by monitoring water pressure. But pipelines at different locations and heights will exhibit different pressure characteristics, making it impossible to accurately determine the actual flow rate of the pipeline. Utility Model Content

[0004] The purpose of this invention is to improve the problem that existing automatic flow control valves cannot accurately determine the actual flow rate of the pipeline, and to provide an automatic flow control valve.

[0005] The technical solutions for achieving the above objectives include the following:

[0006] An automatic control flow valve includes: a measurement and sensing component, a control and drive component, and a control circuit. The control and drive component includes a driver, a valve, and a valve body pipeline. The measurement and sensing component includes a measurement pipeline and two ultrasonic sensors.

[0007] The valve body pipeline is installed on the measuring pipeline, the valve is movably disposed inside the valve body pipeline, the valve is installed at the output end of the actuator, and the actuator is installed on the valve body pipeline;

[0008] Both ultrasonic sensors are installed on the measuring pipeline. One ultrasonic sensor has a transmitting end and the other ultrasonic sensor has a receiving end. The transmitting end and the receiving end are located inside the measuring pipeline and are set relatively far apart. The ultrasonic sensors are electrically connected to the driver through a control circuit.

[0009] In one embodiment, each of the ultrasonic sensors is inclinedly disposed on the measuring pipeline, and a measuring path is formed between the transmitting end and the receiving end. The measuring path intersects the axis of the measuring pipeline and forms an angle.

[0010] In one embodiment, the included angle is 58 to 69 degrees.

[0011] In one embodiment, the measuring sensing assembly further includes a first flange and a second flange, which are respectively installed at both ends of the measuring pipeline;

[0012] The outer diameters of both the first flange and the second flange are larger than the outer diameter of the measuring pipeline, and the ultrasonic sensor is located between the first flange and the second flange.

[0013] In one embodiment, one ultrasonic sensor is a transmitting element having the transmitting end; the other ultrasonic sensor is a receiving element having the receiving end, and the transmitting end cooperates with the receiving end.

[0014] In one embodiment, the measuring sensing component further includes a housing, a circuit board, and a support rod. The circuit board is installed inside the housing, the housing is installed at a first end of the support rod, and a second end of the support rod is installed on the measuring pipeline. The circuit board has the control circuit described above.

[0015] In one embodiment, the measuring sensing component further includes a first temperature sensor and a second temperature sensor. The first temperature sensor is installed inside the measuring pipeline, and the second temperature sensor is located outside the measuring pipeline. The first temperature sensor and the second temperature sensor are electrically connected to the control circuit, respectively.

[0016] In one embodiment, the control drive assembly further includes a drive shaft and a valve seat. The first end of the drive shaft is mounted on a driver, and the second end of the drive shaft is connected to a valve. The valve seat is installed inside a valve body pipeline and is sleeved outside the valve. The valve and the valve seat are rotatably connected.

[0017] In one embodiment, the control drive assembly further includes a sealing ring, the drive shaft has a limiting groove extending along the outer wall of the drive shaft, the sealing ring is sleeved on the drive shaft and at least partially disposed within the limiting groove, and the outer wall of the sealing ring abuts against the drive shaft and the valve body pipeline.

[0018] In one embodiment, a first chamber is formed in the measuring pipeline, and a second chamber is formed in the valve body pipeline; the valve is located in the second chamber, the first end of the valve body pipeline is connected to the first end of the measuring pipeline, the second end of the measuring pipeline has a first port, and the second end of the valve body pipeline has a second port, and the first port, the first chamber, the second chamber, and the second port are sequentially connected.

[0019] The technical solution provided by this utility model has the following advantages and effects:

[0020] The valve is movably installed within the valve body pipeline. An actuator drives the valve to rotate within the pipeline, opening or closing it and regulating the flow rate of liquid within the pipeline. The valve body pipeline is installed on a measuring pipeline. Liquid enters the valve body pipeline through this measuring pipeline. The measuring pipeline contains two ultrasonic sensors. One sensor emits a signal, which is received by the other. When liquid flows within the measuring pipeline, the signal is transmitted and carried by the liquid to the other ultrasonic sensor. If the liquid flow rate is high, the response time between the two ultrasonic sensors is shortened, allowing the calculation of the liquid velocity. The ultrasonic sensor transmits the liquid velocity signal to the control circuit. If the liquid velocity is too high, the control circuit sends a control signal to the actuator, causing it to adjust the valve and control the liquid flow rate. Attached Figure Description

[0021] The accompanying drawings illustrate specific examples of the technical solutions described in this utility model, and together with the detailed embodiments, form part of the specification, serving to explain the technical solutions, principles, and effects of this utility model.

[0022] Unless otherwise specified or defined, the same reference numerals in different figures represent the same or similar technical features, and different reference numerals may be used to represent the same or similar technical features.

[0023] Figure 1 This is a schematic diagram of an automatic flow control valve in one embodiment of the present invention;

[0024] Figure 2 This is a side view of an automatic flow control valve in one embodiment of the present invention;

[0025] Figure 3 This is a cross-sectional view of an automatic flow control valve in one embodiment of this utility model;

[0026] Explanation of reference numerals in the attached figures:

[0027] 100. Automatic control flow valve; 1. Measuring sensing component; 11. Measuring pipeline; 111. First flange; 112. Second flange; 113. Centerline; 12. Housing; 121. Support rod; 13. Ultrasonic sensor; 131. Measuring path; 132. Angle; 14. First temperature sensor; 101. First port; 102. First chamber; 2. Control drive component; 21. Valve body pipeline; 22. Driver; 221. Drive shaft; 222. Valve; 223. Valve seat; 224. Sealing ring; 201. Second port; 202. Second chamber; 3. Second temperature sensor. Detailed Implementation

[0028] To facilitate understanding of this utility model, the specific embodiments of this utility model will be described in more detail below with reference to the accompanying drawings.

[0029] Unless otherwise specified or defined, the terms "first," "second," etc., used in this document are for distinguishing names only and do not represent a specific number or order.

[0030] Unless otherwise stated or defined, the term “and / or” as used herein includes any and all combinations of one or more of the associated listed items.

[0031] It should be noted that when a component is considered "fixed" to another component, it can be directly fixed to the other component or there can be an intervening component; when a component is considered "connected" to another component, it can be directly connected to the other component or there can be an intervening component; when a component is considered "mounted" on another component, it can be directly mounted on the other component or there can be an intervening component; when a component is considered "placed" on another component, it can be directly placed on the other component or there can be an intervening component.

[0032] This utility model proposes an automatic control flow valve 100, such as Figures 1 to 3 As shown, the system includes a measurement sensing component 1, a control drive component 2, and a control circuit. The control drive component 2 includes a driver 22, a valve 222, and a valve body pipeline 21. The measurement sensing component 1 includes a measurement pipeline 11 and two ultrasonic sensors 13. The valve body pipeline 21 is installed on the measurement pipeline 11, and the valve 222 is movably disposed within the valve body pipeline 21. The valve 222 is installed at the output end of the driver 22, and the driver 22 is installed on the valve body pipeline 21. Both ultrasonic sensors 13 are installed on the measurement pipeline 11. One ultrasonic sensor 13 has a transmitting end, and the other ultrasonic sensor 13 has a receiving end. The transmitting end and the receiving end are located within the measurement pipeline 11 and are positioned relatively far apart. The ultrasonic sensors 13 are electrically connected to the driver 22 through the control circuit.

[0033] Specifically, valve 222 is movably disposed within valve body pipeline 21, and actuator 22 is used to drive valve 222 to rotate within valve body pipeline 21, thereby opening or closing valve body pipeline 21, and adjusting the flow rate of liquid within valve body pipeline 21 by rotating valve 222. The valve body pipe 21 is installed on the measuring pipe 11. Liquid enters the valve body pipe 21 after passing through the measuring pipe 11. The measuring pipe 11 has two ultrasonic sensors 13. One ultrasonic sensor 13 is used to emit a signal, which is received by the other ultrasonic sensor 13. When there is liquid flowing in the measuring pipe 11, the signal is transmitted in the measuring pipe 11 and flows to the other ultrasonic sensor 13 with the liquid as a carrier. If the liquid flow rate is fast, the response time between the two ultrasonic sensors 13 will be shortened, thereby calculating the liquid flow rate in the measuring pipe 11. The ultrasonic sensor 13 transmits the liquid flow rate signal in the measuring pipe 11 to the control circuit. If the liquid flow rate is too fast, the control circuit will send a control signal to the driver 22, causing the driver 22 to adjust the valve 222 and control the liquid flow rate.

[0034] Furthermore, ultrasonic flow measurement is a technique that uses the propagation characteristics of ultrasonic waves in water flow to determine flow velocity and flow rate. It calculates the average flow velocity based on the time difference between upstream and downstream propagation of the sound pulse. The system consists of an underwater transducer (two ultrasonic sensors 13), surface electronic equipment (circuit board), and transmission lines. The measurement error can be controlled within ±3%, making it suitable for complex environments such as tidal zones. Based on its principle, it can be divided into the propagation velocity difference method (including the time difference method, phase difference method, and frequency difference method) and the Doppler method. The time difference method calculates the flow velocity based on the time difference between upstream and downstream flow, while the Doppler method estimates the flow velocity based on the frequency shift of sound wave reflection.

[0035] Assuming a time-of-flight (TOF) method is used, a sufficiently long measurement distance (typically ≥50cm) is required to ensure accurate detection of the ultrasonic wave propagation time difference. If the distance is too short, the time difference may be lower than the instrument's resolution, leading to increased flow velocity calculation errors. Similarly, if a Doppler method (for turbid fluids) is used, relying on frequency shift analysis of particle reflection signals, excessively close distances may result in insufficient signal strength or increased interference, affecting measurement stability. Therefore, setting the transmitter and receiver relatively far apart can reduce calculation errors and improve measurement stability.

[0036] Preferably, each ultrasonic sensor 13 is inclinedly disposed on the measuring conduit 11, forming a measuring path 131 between the transmitting end and the receiving end. The measuring path 131 intersects the axis 113 of the measuring conduit 11, forming an angle 132. Specifically, since the length of the measuring conduit 11 is as small as possible to facilitate the assembly of the measuring sensing component 1 and the control drive component 2, within a limited length, intersecting the axis 113 of the measuring conduit 11 with the measuring path 131 and forming an angle 132 can further increase the length of the measuring path 131, further reduce calculation errors and improve measurement stability.

[0037] In addition, the control drive assembly 2 also has a reducer for adjusting the torque and speed of the drive 22. The reducer is a conventional technology and will not be described in detail here.

[0038] Preferably, the included angle 132 is between 58 and 69 degrees. Specifically, through experimental testing, this included angle 132 is 60 degrees, which facilitates the installation of the ultrasonic sensor 13 in a limited space and allows for a longer measurement path 131 within that limited space.

[0039] Preferably, the measuring sensing assembly 1 further includes a first flange 111 and a second flange 112, which are respectively installed at both ends of the measuring pipeline 11. The outer diameters of both the first flange 111 and the second flange 112 are larger than the outer diameter of the measuring pipeline 11, and the ultrasonic sensor 13 is located between the first flange 111 and the second flange 112. Specifically, the ultrasonic sensor 13 is located between the first flange 111 and the second flange 112, and the outer diameter of the first flange 111 is larger than the outer diameter of the measuring pipeline 11. The outer edge of the first flange 111 protrudes upward. Therefore, when the ultrasonic sensor 13 is installed, the first flange 111 and the second flange 112 will cause interference. Thus, the included angle 132 is 60 degrees, which facilitates the installation of the ultrasonic sensor 13 in a limited space. Moreover, the connection to the valve body pipeline 21 via the first flange 111 or the second flange 112 ensures a tight connection, convenient assembly and disassembly, strong sealing, and safety and reliability.

[0040] Preferably, one of the ultrasonic sensors 13 is a transmitting element with a transmitting end; the other ultrasonic sensor 13 is a receiving element with a receiving end, and the transmitting end and the receiving end cooperate. Specifically, the transmitting element is used to emit ultrasonic signals, which are then carried by the liquid to the receiving end of the receiving element. When the flow rate is high, the response time between the transmitting end and the receiving end is short; when the flow rate is slow, the response time between the transmitting end and the receiving end is long.

[0041] In some embodiments, the measuring sensing component 1 further includes a housing 12, a circuit board (not shown), and a support rod 121. The circuit board is mounted inside the housing 12, the housing 12 is mounted on the first end of the support rod 121, and the second end of the support rod 121 is mounted on the measuring pipeline 11. The circuit board has a control circuit. Specifically, the control circuit is mounted on this circuit board, and the housing 12 protects the circuit board from external environmental influences on the normal operation of the control circuit. The housing 12 is mounted on the measuring pipeline 11 via the support rod 121, improving the stability of the circuit board on the measuring pipeline 11.

[0042] In some embodiments, the measuring sensing assembly 1 further includes a first temperature sensor 14 and a second temperature sensor 3. The first temperature sensor 14 is installed inside the measuring pipeline 11, and the second temperature sensor 3 is located outside the measuring pipeline 11. The first temperature sensor 14 and the second temperature sensor 3 are electrically connected to the control circuit, respectively. Specifically, the first temperature sensor 14 is used to sense the temperature of the liquid inside the measuring pipeline 11 and send the temperature signal to the control circuit. The control circuit can adjust the actuator 22 according to the flow rate and temperature of the liquid. The second temperature sensor 3 is installed in other pipelines so that the automatic control flow valve 100 can monitor the liquid temperature in the measuring pipeline 11 and the liquid temperature in other pipelines, and adjust the size of the valve 222 by analyzing the temperature difference.

[0043] Preferably, the control drive assembly 2 further includes a drive shaft 221 and a valve seat 223. The first end of the drive shaft 221 is mounted on the driver 22, and the second end of the drive shaft 221 is connected to the valve 222. The valve seat 223 is installed inside the valve body pipeline 21 and is sleeved on the outside of the valve 222. The valve 222 and the valve seat 223 are rotatably connected. Specifically, after the driver 22 is started, it drives the drive shaft 221 to rotate. The drive shaft 221 drives the valve 222 to rotate relative to the valve seat 223. The valve 222 is a valve core component such as a ball valve. The valve seat 223 is a key component in industrial valves used to support the fully closed position of the valve core. It achieves the fluid cut-off function by forming a sealing pair with the valve core.

[0044] Preferably, the control drive assembly 2 further includes a sealing ring 224. The drive shaft 221 has a limiting groove extending along the outer wall of the drive shaft 221. The sealing ring 224 is sleeved on the drive shaft 221 and at least partially disposed within the limiting groove. The outer wall of the sealing ring 224 abuts against the drive shaft 221 and the valve body pipeline 21. Specifically, the drive shaft 221 rotates within the valve body pipeline 21 to drive the valve 222 to rotate, while the sealing ring 224 seals the gap between the drive shaft 221 and the valve body pipeline 21, improving the sealing performance of the valve body pipeline 21.

[0045] Preferably, a first chamber 102 is formed within the measuring pipe 11, and a second chamber 202 is formed within the valve body pipe 21. A valve 222 is located within the second chamber 202. The first end of the valve body pipe 21 is connected to the first end of the measuring pipe 11. The second end of the measuring pipe 11 has a first port 101, and the second end of the valve body pipe 21 has a second port 201. The first port 101, the first chamber 102, the second chamber 202, and the second port 201 are sequentially connected. Specifically, liquid flows from the first port 101 into the first chamber 102, the second chamber 202, and the second port 201. Upon entering the first chamber 102, the liquid's flow rate is measured by the ultrasonic sensor 13, and its temperature is measured by the first temperature sensor 14. Signals are then sent to the control circuit, causing the control circuit to activate the driver 22 and adjust the valve 222 within the second chamber 202, thereby automatically regulating the liquid flow rate.

[0046] When referencing drawings, new features are explained. To avoid redundant references to drawings that would make the description less concise, features already described will not be referenced again on the drawings if the description is clear.

[0047] The purpose of the above embodiments is to reproduce and derive the technical solution of this utility model by way of example, and to fully describe the technical solution, purpose and effect of this utility model. The purpose is to enable the public to have a more thorough and comprehensive understanding of the disclosed content of this utility model, and it is not intended to limit the protection scope of this utility model.

[0048] The above embodiments are not an exhaustive list based on the present invention, and there may be other embodiments not listed. Any substitutions and improvements made without departing from the concept of the present invention are within the protection scope of the present invention.

Claims

1. An automatic flow control valve, characterized in that, include: The system includes a measurement sensing component, a control drive component, and a control circuit. The control drive component includes a driver, a valve, and a valve body pipeline. The measurement sensing component includes a measurement pipeline and two ultrasonic sensors. The valve body pipeline is installed on the measuring pipeline, the valve is movably disposed inside the valve body pipeline, the valve is installed at the output end of the actuator, and the actuator is installed on the valve body pipeline; Both ultrasonic sensors are installed on the measuring pipeline. One ultrasonic sensor has a transmitting end and the other ultrasonic sensor has a receiving end. The transmitting end and the receiving end are located inside the measuring pipeline. The ultrasonic sensors are electrically connected to the driver through a control circuit.

2. The automatic control flow valve as described in claim 1, characterized in that, Each of the ultrasonic sensors is inclinedly disposed on the measuring pipeline, and a measuring path is formed between the transmitting end and the receiving end. The measuring path intersects the axis of the measuring pipeline and forms an angle.

3. The automatic control flow valve as described in claim 2, characterized in that, The included angle is between 58 and 69 degrees.

4. The automatic control flow valve as described in claim 2, characterized in that, The measuring sensing component also includes a first flange and a second flange, which are respectively installed at both ends of the measuring pipeline; The outer diameters of both the first flange and the second flange are larger than the outer diameter of the measuring pipeline, and the ultrasonic sensor is located between the first flange and the second flange.

5. The automatic control flow valve as described in claim 2, characterized in that, One of the ultrasonic sensors is a transmitting element, which has the transmitting end; the other ultrasonic sensor is a receiving element, which has the receiving end, and the transmitting end and the receiving end cooperate.

6. The automatic control flow valve as described in claim 2, characterized in that, The measuring sensing component also includes a housing, a circuit board, and a support rod. The circuit board is installed inside the housing, the housing is installed at the first end of the support rod, the second end of the support rod is installed on the measuring pipeline, and the circuit board has the control circuit described above.

7. The automatic control flow valve as described in claim 6, characterized in that, The measurement sensing component further includes a first temperature sensor and a second temperature sensor. The first temperature sensor is installed inside the measurement pipeline, and the second temperature sensor is located outside the measurement pipeline. The first temperature sensor and the second temperature sensor are electrically connected to the control circuit, respectively.

8. The automatic control flow valve according to any one of claims 1 to 7, characterized in that, The control drive assembly also includes a drive shaft and a valve seat. The first end of the drive shaft is mounted on the driver, and the second end of the drive shaft is connected to the valve. The valve seat is installed inside the valve body pipeline and is sleeved on the outside of the valve. The valve and the valve seat are rotatably connected.

9. The automatic control flow valve as described in claim 8, characterized in that, The control drive assembly also includes a sealing ring. The drive shaft has a limiting groove extending along the outer wall of the drive shaft. The sealing ring is sleeved on the outside of the drive shaft and is at least partially disposed within the limiting groove. The outer wall of the sealing ring abuts against the drive shaft and the valve body pipeline.

10. The automatic control flow valve according to any one of claims 1 to 7, characterized in that, A first chamber is formed within the measuring pipeline, and a second chamber is formed within the valve body pipeline; the valve is located within the second chamber, the first end of the valve body pipeline is connected to the first end of the measuring pipeline, the second end of the measuring pipeline has a first port, and the second end of the valve body pipeline has a second port; the first port, the first chamber, the second chamber, and the second port are sequentially connected.

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