A flow-controllable swing check valve

Abstract

The application is suitable for the technical field of valve control, and provides a swing valve with controllable flow, which comprises a valve body, a power generation assembly, a swing shaft, an orifice plate flowmeter, a valve clack and a storage battery, an annular insert block is installed in the valve body, a rotating support is fixedly connected to the lower part of the annular insert block, the rotating support is hingedly connected with the swing shaft through a rotating arm, the swing shaft is connected with a first electric rotary cylinder, and the swing shaft is detachably installed with the valve clack. The valve clack comprises a middle body, a left clack, a right clack, a second electric rotary cylinder and a stud, the bottom of the middle body is provided with a wedge-shaped buckle, an electric telescopic cylinder is installed in the valve body, and the telescopic buckle of the electric telescopic cylinder can be matched with the wedge-shaped buckle; the left clack and the right clack are rotated under the driving of the respective second electric rotary cylinder, and the stud clamps or loosens the left clack and the right clack when rotating. The application can switch the flow by controlling the number and angle of the opening of each part, the flow switching has five modes, and the flow of liquid medium can be accurately controlled.

Description

Technical Field

[0001] This invention relates to the field of valve control technology, and more specifically to a swing valve capable of controlling the flow rate of a medium. Background Technology

[0002] Existing valves can only control the flow rate of fluid media by controlling the angle of the rotary switch or the distance of the switch movement. This results in low flow control precision and lacks dynamic control. For example, a check valve, also known as an automatic valve, non-return valve, one-way valve, backflow valve, or isolation valve, is a type of valve whose opening and closing element is a circular valve disc that relies on its own weight and the pressure of the medium to prevent backflow. A swing check valve has an angled valve disc that can rotate around an axis. When the inlet pressure exceeds the sum of the valve disc's weight and its flow resistance, the valve opens. Check valves can prevent water backflow but cannot precisely regulate the flow rate of fluid media. A gate valve, on the other hand, has a plug-shaped valve disc with a flat or conical sealing surface. The valve disc moves linearly along the centerline of the valve seat. Because the change in the valve seat opening is directly proportional to the valve disc's stroke, it is suitable for flow regulation. The rotation of the valve disc is mainly achieved by turning the valve stem, which is not a precise or intelligent control method.

[0003] Therefore, in order to accurately control the flow rate, it is urgent to develop a valve that can control the flow rate in multiple stages according to the flow requirements. Summary of the Invention

[0004] To address the aforementioned shortcomings of existing technologies, the technical problem this invention aims to solve is that existing valves generally only have a start-up and stop function, controlling the flow rate of the fluid medium solely by controlling the angle of the rotary switch or the distance of its movement. However, the accuracy of flow control is low, and intelligent control is not possible. This invention provides a flow-controllable swing valve, dividing the valve disc into three parts: left, middle, and right valve discs. An electric cylinder controls the number and angle of opening each valve disc, achieving a five-level flow control effect. An orifice plate flow meter is used for dynamic flow monitoring, enabling real-time control of the liquid medium's flow status.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a flow-controllable swing valve, comprising a valve body, a generator assembly, a swing shaft, an orifice flow meter, a valve disc, and a battery. The valve body is provided with a top cover. The generator assembly is installed at the inlet of the valve body, and the orifice flow meter is installed at the outlet. The battery connects to the generator assembly, the orifice flow meter, and each electric component.

[0006] An annular insert is installed inside the valve body. A rotating support is fixedly connected to the lower part of the annular insert. The rotating support is hinged to a swing shaft via a rotating arm. The swing shaft is connected to a first electric rotary cylinder. A valve disc is detachably installed on the swing shaft.

[0007] The valve disc includes a middle body, a left disc, a right disc, a second electric rotary cylinder, and an I-shaped pin. A wedge-shaped buckle is provided at the bottom of the middle body. An electric telescopic cylinder is installed inside the valve body, and the telescopic buckle of the electric telescopic cylinder can cooperate with the wedge-shaped buckle. The left and right discs rotate under the drive of their respective second electric rotary cylinders. Each of the left and right discs is equipped with an arc-shaped support, which limits the movement of the left and right discs. A groove is provided at the center of the connection between the middle body and the left and right discs. A rotatable I-shaped pin is installed in the groove. A limit actuator is installed on the middle body and drives the I-shaped pin to rotate. When the I-shaped pin rotates, it locks or releases the left and right discs.

[0008] According to another embodiment of the present invention or any of the foregoing embodiments, the swing valve is wherein the battery is mounted on the upper part of the rotating support and is sealed.

[0009] According to another embodiment of the present invention or any of the foregoing embodiments, a swing valve is provided in which multiple layers of seals are installed between the upper cover and the valve body.

[0010] According to another embodiment of the present invention or any of the foregoing embodiments, the annular insert is composed of multiple arc-shaped blocks spliced ​​together to form a ring, and the arc-shaped blocks are embedded in the grooves of the valve body for support.

[0011] According to another embodiment of the present invention or any of the foregoing embodiments, the swing valve has a T-shaped swing shaft with two mounting holes in the center, which is bolted to the middle body of the valve disc. One end of the swing shaft is fitted with a rubber pad or other soft material, which can fit against the buffer support.

[0012] According to another embodiment of the present invention or any of the foregoing embodiments, the swing valve includes a housing, a generator, a rotor, and a shaft. A notch is provided at the upper part of the liquid inlet of the valve body. The housing is installed on the liquid inlet pipe. A shaft is installed inside the housing. A rotor is installed on the shaft. The rotor extends into the liquid inlet pipe. The shaft is connected to the rotor of an electric motor. The rotor rotates under the drive of the liquid to generate electricity.

[0013] According to another embodiment of the present invention or any of the foregoing embodiments, the swing valve has two second electric rotary cylinders and two limit actuators, which are symmetrically mounted on the intermediate body; and four arc-shaped supports are symmetrically mounted in pairs on the left and right lobes.

[0014] According to another embodiment of the present invention or any of the foregoing embodiments, in a swing valve, a rubber pad or other soft material is mounted on the arc-shaped support.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] The flow-controllable swing valve provided by this invention uses an orifice plate flow meter and an electric cylinder working together. The valve disc is designed as three parts with different flow-facing areas. The flow rate can be switched by controlling the number and angle of each part opening. The flow rate switching has 5 modes, which facilitates precise control of the flow rate of the liquid medium. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the flow-controllable swing valve described in this invention.

[0018] Figure 2 This is a cross-sectional schematic diagram of the flow-controllable swing valve described in this invention.

[0019] Figure 3 This is a three-dimensional schematic diagram of the power generation assembly described in this invention;

[0020] Figure 4 This is an exploded view of the assembly of the power generation assembly described in this invention;

[0021] Figure 5 This is an enlarged three-dimensional schematic diagram of the orifice plate flowmeter described in this invention;

[0022] Figure 6 This is an enlarged three-dimensional schematic diagram of the flow control component and the storage battery described in this invention;

[0023] Figure 7 This is an enlarged three-dimensional schematic diagram of the valve disc and the swing shaft described in this invention. Figure 1 ;

[0024] Figure 8 for Figure 7 An enlarged schematic diagram of part A;

[0025] Figure 9 for Figure 7 An enlarged schematic diagram of part B;

[0026] Figure 10 This is an enlarged three-dimensional schematic diagram of the I-shaped pin and the limit driver described in this invention;

[0027] Figure 11 This is an enlarged three-dimensional schematic diagram of the valve disc and the swing shaft described in this invention. Figure 2 ;

[0028] Figure 12 for Figure 11 An enlarged schematic diagram of part C;

[0029] Figure 13 This is an enlarged three-dimensional schematic diagram of the left lobe and arc-shaped support described in this invention;

[0030] Figure 14This is an enlarged three-dimensional schematic diagram of the left lobe after rotation as described in this invention;

[0031] Figure 15 This is an enlarged three-dimensional schematic diagram of the left and right lobes after rotation as described in this invention;

[0032] Figure 16 This is an enlarged three-dimensional schematic diagram of the swing shaft and the first electric rotary cylinder described in this invention;

[0033] In the diagram: 1. Valve body; 2. Generator assembly; 201. Cover; 202. Generator; 203. Rotary wheel; 204. Axle; 3. Orifice plate flow meter; 4. Top cover; 5. Swing shaft; 501. First electric rotary cylinder; 502. Mounting hole; 503. Rubber pad; 6. Buffer support; 7. Valve disc; 701. Right disc; 702. Left disc; 703. Wedge-shaped buckle; 704. Arc-shaped support; 705. Second electric rotary cylinder; 706. Intermediate body; 707. Limit actuator; 708. I-beam pin; 8. Electric telescopic cylinder; 9. Battery; 10. Annular insert; 11. Rotary support; 12. Valve seat. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] like Figure 1 , 2 As shown in Figure 5, a flow-controllable swing valve includes a valve body 1, a generator assembly 2, a swing shaft 5, an orifice flow meter 3, a valve disc 7, and a battery 9. A top cover 4 is provided on the upper part of the valve body 1. The generator assembly 2 is installed at the inlet of the valve body 1, and the orifice flow meter 3 is installed at the outlet. The battery 9 connects the generator assembly 2, the orifice flow meter 3, and various electric components. The battery 9 is mounted on the upper part of the rotating support 11 and is sealed. Multiple layers of seals are installed between the top cover 4 and the valve body 1. Figure 3 , 4 As shown, the power generation component 2 includes a housing 201, a generator 202, a rotor 203, and a shaft 204. The upper part of the liquid inlet of the valve body 1 is provided with a notch. The housing 201 is installed on the liquid inlet pipe. The shaft 204 is installed inside the housing 201. The rotor 203 is installed on the shaft 204. The rotor 203 extends into the liquid inlet pipe. The shaft 204 is connected to the rotor of the motor. The rotor 203 rotates under the drive of the liquid to generate electricity.

[0036] like Figure 2 , 6As shown in Figure 16, the annular insert 10 is installed inside the valve body 1. The lower part of the annular insert 10 is fixedly connected to the rotating support 11. The rotating support 11 is hinged to the swing shaft 5 via a rotating arm. The swing shaft 5 is connected to the first electric rotating cylinder 501. The valve disc 7 is detachably installed on the swing shaft 5. The annular insert 10 is composed of multiple arc-shaped blocks spliced ​​into a ring. The arc-shaped blocks are embedded in the groove of the valve body 1 for support. The swing shaft 5 is T-shaped and has two mounting holes 502 in the center. It is installed on the middle body 706 of the valve disc 7 by bolts. A rubber pad 503 or other soft material is installed at one end of the swing shaft 5. The rubber pad 503 can fit against the buffer support 6.

[0037] like Figure 7 , 8 As shown in Figures 9, 13, and 14, the valve disc 7 includes an intermediate body 706, a left disc 702, a right disc 701, a second electric rotary cylinder 705, and an I-shaped pin 708. A wedge-shaped buckle 703 is provided at the bottom of the intermediate body 706. An electric telescopic cylinder 8 is installed inside the valve body 1, and the telescopic buckle of the electric telescopic cylinder 8 can cooperate with the wedge-shaped buckle 703. The left disc 702 and the right disc 701 rotate under the drive of their respective second electric rotary cylinders 705. An arc-shaped support 704 is installed on the left disc 702 and the right disc 701, and the arc-shaped support 704 limits the left disc 702 and the right disc 701. In one example, a rubber pad 503 or other soft material is attached to the arc-shaped support 704.

[0038] like Figure 7 , 10 As shown in Figures 11, 12, and 15, a groove is provided at the center of the connection between the central body and the left lobe 702 and right lobe 701. A rotatable I-beam pin 708 is installed in the groove. A limit actuator 707 is installed on the intermediate body 706 and drives the I-beam pin 708 to rotate. When the I-beam pin 708 rotates, it locks or releases the left lobe 702 and right lobe 701. There are two second electric rotary cylinders 705 and two limit actuators 707, which are symmetrically installed on the intermediate body 706. There are four arc-shaped supports 704, which are symmetrically installed in pairs on the left lobe 702 and right lobe 701.

[0039] Working principle of the invention:

[0040] The present invention features a power generation component 2 at the upper inlet of the valve. The liquid medium drives the rotor 203 to rotate, which in turn drives the rotor of the generator 202 to generate electricity. A battery 9 stores the electrical energy of the generator 202, providing power to the electric telescopic cylinder 8 and the electric rotary cylinder. The valve disc 7 is divided into three parts: a left disc 702, a right disc 701, and an intermediate body 706. The flow-facing areas of these three parts are different. By controlling the number of valve discs 7 opening and their respective angles, the flow rate of the liquid medium through the valve can be adjusted. The left disc 702 and the right valve disc 7 are controlled by a limit actuator 707 for locking and opening, and the electric rotary cylinder deflects them at a certain angle to control the flow rate. The intermediate body 706 is locked by a wedge-shaped latch 703, and its opening angle is controlled by a rotating electric cylinder. An orifice flow meter 3 is installed at the valve outlet. By monitoring the flow rate, a signal is sent to the electric cylinder to control the rotation angle of the electric rotary cylinder and the movement distance of the electric telescopic cylinder 8.

[0041] A generator assembly 2 is fixedly mounted on the upper surface of the valve inlet with screws. When water flows through the valve inlet, it drives the rotor 203 to rotate, causing the generator 202 to generate electricity. The generator 202 is connected to a battery 9 mounted on a rotating support 11 via wires. The battery 9 stores electrical energy and supplies power to the first electric rotary cylinder 501, two electric telescopic cylinders 8, and two second electric rotary cylinders 705 via wires. The rotating support 11 is installed on the upper part of the valve interior. The battery 9 is fixed to an annular insert 10 with screws on the upper part of the rotating support 11. There are multiple annular inserts 10, which are installed in grooves on the upper part of the valve body 1. The valve disc 7 is hinged to the rotating support 11, and the opening angle of the valve disc 7 is controlled by the electric rotary cylinder.

[0042] A buffer support 6 is installed on the other side of the rotating support 11 to limit the opening angle of the valve disc 7. Both the valve disc 7 and the rotating support 11 are inserted through the upper circular hole and installed sequentially, then sealed with a sealing element. The main body of the valve disc 7 is an intermediate body 706, with a left disc 702 and a right disc 701 placed on its left and right sides respectively. Both the left and right discs 702 and 701 can rotate around the intermediate body 706. A limit actuator 707 is installed in the circular holes on the left and right sides of the intermediate body 706 and connected to the left and right discs 702 and 701 respectively. When it is necessary to lock the left disc 702 or the right disc 701, the limit actuator 707 drives the I-pin 708 to rotate, locking the left disc 702 or the right disc 701 to the intermediate body 706. When it is necessary to open the left lobe 702 or the right lobe 701, the limit driver 707 drives the I-pin 708 to rotate, thereby disengaging the left lobe 702 or the right lobe 701 from the intermediate body 706. Then, the second electric rotary cylinder 705 controls the left lobe 702 or the right lobe 701 to rotate at a certain angle, thereby controlling the flow rate.

[0043] A wedge-shaped latch 703 is provided at the end of the intermediate body 706, corresponding to the electric telescopic cylinder 8. When the intermediate body 706 needs to be closed, the valve disc 7 is pressed against the valve seat 12 by controlling the first electric rotary cylinder 501, and then the telescopic latch is extended by controlling the electric telescopic cylinder 8 to lock the wedge-shaped latch 703. When the intermediate body 706 needs to be opened, the telescopic latch is retracted by controlling the electric telescopic cylinder 8, and then the first electric rotary cylinder 501 is rotated to rotate the valve disc 7 by a certain angle, and then the entire valve is opened. An orifice plate flow meter 3 is placed in the groove at the valve outlet. When flow passes through, a pressure difference is formed before and after the standard orifice plate of the orifice plate flow meter 3. The signal is transmitted to the control and measurement mechanism through the pressure tapping pipe. After calculation and analysis, the control and measurement mechanism controls the rotation angle of the two second electric cylinder rotating components and the first electric rotary cylinder 501 to achieve precise flow control.

[0044] Arc-shaped supports 704 are welded to the upper surfaces of the left lobe 702 and the right lobe 701. Three rubber pads 503 are connected to the arc-shaped supports 704, which act as a buffer when in contact with the intermediate body 706. The arc-shaped supports 704 can limit the rotation range of the left lobe 702 and the right lobe 701 to 0° to 90°. A groove is provided in the middle of the edge of the left lobe 702 to limit the rotation angle of the I-beam pin 708.

[0045] The telescopic rod of the limit actuator 707 is inserted into the groove of the moving slot. The moving slot is welded to the I-pin 708 as a whole. The I-pin 708 is inserted into two cylindrical holes on the edge of the intermediate body 706. The limit actuator 707 obtains power by being connected to the battery 9 through a wire, and controls the reciprocating movement of the telescopic rod. The telescopic rod moves in the groove of the moving slot, driving the I-pin 708 to rotate. By controlling the extension distance of the telescopic rod, the rotation angle of the I-pin 708 can be controlled within the range of 0° to 90°.

[0046] like Figure 13-16 As shown, this invention controls the flow rate of the liquid medium by controlling the opening and closing angle of the valve disc 7. Since the flow-facing areas of the left disc 702, right disc 701 and intermediate body 706 are different, the flow rate of the liquid medium can be controlled by controlling the opening angle of each part. According to the opening sequence and angle of each part, it is divided into a five-level flow control method.

[0047] First-stage flow: The electric telescopic cylinder 8 locks the intermediate body 706, and the limit actuator 707 controls the rotation of the I-shaped pin 708, allowing the left lobe 702 to rotate without being locked by the I-shaped pin 708, while the right lobe 701 is locked by the I-shaped pin 708. Then, the second electric rotary cylinder 705 controls the rotation of the left lobe 702, allowing the liquid medium to flow in through the inlet opened by the left lobe 702. Controlling the rotation angle controls the flow rate.

[0048] Secondary flow control: The electric telescopic cylinder 8 locks the intermediate body 706, and the limit actuator 707 controls the rotation of the I-pin 708, allowing the right lobe 701 to rotate without being locked by the I-pin 708, while the left lobe 702 is locked by the I-pin 708. The second electric rotary cylinder 705 then controls the rotation of the right lobe 701, allowing the liquid medium to flow in through the inlet opened by the right lobe 701. Controlling the rotation angle controls the flow rate.

[0049] Three-stage flow control: The electric telescopic cylinder 8 locks the intermediate body 706, and the limit actuator 707 controls the rotation of the I-pin 708, allowing both the left lobe 702 and the right lobe 701 to rotate without being locked by the I-pin 708. Then, the second electric rotary cylinder 705 controls the left lobe 702 to fully open and rotate to its 90° limit position, controlling the right lobe 701 to different angles. The liquid medium flows in through the inlets opened by the left lobe 702 and the right lobe 701, and the flow rate can be controlled by adjusting the rotation angle of the right lobe 701.

[0050] Fourth-stage flow: The electric telescopic cylinder 8 locks the intermediate body 706, and the limit actuator 707 controls the rotation of the I-pin 708, so that the left lobe 702 and the right lobe 701 are not locked by the I-pin 708 and can rotate. Then, the second electric rotary cylinder 705 controls the right lobe 701 to fully open and rotate to the 90° limit position, controlling the left lobe 702 to different angles. The liquid medium flows in through the inlets opened by the left lobe 702 and the right lobe 701. The flow rate can be controlled by controlling the rotation angle of the left lobe 702.

[0051] Five-stage flow: The limit actuator 707 controls the rotation of the I-pin 708, allowing the left and right lobes 702 and 701 to rotate without being locked by the I-pin 708. The second electric rotary cylinder 705 then fully opens the left and right lobes 702 and 701, rotating them to their 90° limit position. The electric telescopic cylinder 8 retracts the telescopic latch, allowing the intermediate body 706 to rotate. The second electric rotary cylinder 705 controls the rotation of the swing shaft 5 by a certain angle, causing the intermediate body 706 to open by a certain angle. The liquid medium flows in through the inlets opened by the left and right lobes 702, 701, and intermediate body 706. Controlling the rotation angle of the intermediate body 706 controls the flow rate.

[0052] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this invention. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0053] The above are merely preferred embodiments of the present invention. Any person skilled in the art may modify the present invention or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solutions of the present invention are within the scope of protection claimed by the present invention.

Claims

1. A swing valve with controllable flow rate, characterized in that: The system includes a valve body (1), a generator assembly (2), a swing shaft (5), an orifice flow meter (3), a valve disc (7), and a battery (9). The valve body (1) has a top cover (4). The generator assembly (2) is installed at the inlet of the valve body (1), and the orifice flow meter (3) is installed at the outlet. The battery (9) connects to the generator assembly (2), the orifice flow meter (3), and all electrical components. An annular insert (10) is installed inside the valve body (1). A rotating support (11) is fixedly connected to the lower part of the annular insert (10). The rotating support (11) is hinged to a swing shaft (5) via a rotating arm. The swing shaft (5) is connected to a first electric rotating cylinder (501). A valve disc (7) is detachably installed on the swing shaft (5). The valve disc (7) includes an intermediate body (706), a left disc (702), a right disc (701), a second electric rotary cylinder (705), and an I-shaped pin (708). A wedge-shaped buckle (703) is provided at the bottom of the intermediate body (706). An electric telescopic cylinder (8) is installed inside the valve body (1). The telescopic buckle of the electric telescopic cylinder (8) can cooperate with the wedge-shaped buckle (703). The left disc (702) and the right disc (701) rotate under the drive of their respective second electric rotary cylinders (705). Each of the petals (701) is equipped with an arc-shaped support (704), which limits the left petal (702) and the right petal (701). A groove is provided at the center of the connection between the central body and the left petal (702) and the right petal (701). A rotatable H-shaped pin (708) is installed in the groove. A limit driver (707) is installed on the intermediate body (706) and drives the H-shaped pin (708) to rotate. When the H-shaped pin (708) rotates, it locks or releases the left petal (702) and the right petal (701).

2. The flow-controllable swing valve according to claim 1, characterized in that: The battery (9) is installed on the upper part of the rotating support (11) and sealed.

3. The flow-controllable swing valve according to claim 1, characterized in that: A multi-layer seal is installed between the top cover (4) and the valve body (1).

4. The flow-controllable swing valve according to claim 1, characterized in that: The annular insert (10) is composed of multiple arc-shaped blocks spliced ​​together to form a ring, and the arc-shaped blocks are embedded in the groove of the valve body (1) for support.

5. A swing valve with controllable flow rate according to claim 1, characterized in that: The swing shaft (5) is T-shaped with two mounting holes (502) in the center. It is bolted to the middle body (706) of the valve disc (7). One end of the swing shaft (5) is fitted with a rubber pad (503) or other soft material. The rubber pad (503) can fit against the buffer support (6).

6. A swing valve with controllable flow rate according to claim 1, characterized in that: The power generation component (2) includes a housing (201), a generator (202), a rotor (203), and a shaft (204). The valve body (1) has a notch at the top of the liquid inlet. The housing (201) is installed on the liquid inlet pipe. The shaft (204) is installed inside the housing (201). The rotor (203) is installed on the shaft (204). The rotor (203) extends into the liquid inlet pipe. The shaft (204) is connected to the rotor of the motor. The rotor (203) rotates to generate electricity under the influence of the liquid.

7. A flow-controllable swing valve according to claim 1 or 6, characterized in that: There are two of the second electric rotary cylinder (705) and the limit driver (707), which are symmetrically installed on the intermediate body (706); there are four arc-shaped supports (704), which are symmetrically installed in pairs on the left lobe (702) and the right lobe (701).

8. A swing valve with controllable flow rate according to claim 7, characterized in that: The arc-shaped support (704) is covered with a rubber pad (503) or other soft material.

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