Self-adaptive flow speed control butterfly valve capable of achieving self-adaptive flow speed control and intelligent adjustment

Abstract

The invention relates to the technical field of butterfly valves, in particular to a self-adaptive flow velocity control butterfly valve with self-adaptive flow velocity control and intelligent adjustment, which comprises a valve body of the butterfly valve, a sealing seat is fixedly arranged at the top end of the valve body, a hollow valve plate consistent with a channel in diameter is arranged in the valve body, and the rotary valve plate is used for large-metering liquid discharge. Two sets of horizontal micro-drainage holes are formed in the side face of the valve plate and used for small-metering liquid drainage, a baffle disc is rotationally arranged at the position, located at each micro-drainage hole, in the cavity of the valve plate and used for sealing the micro-drainage holes, and a liquid drainage hole is formed in the side face of each baffle disc and used for communicating with the micro-drainage holes and guiding liquid. The valve plate is arranged in the valve body and serves as a large-metering liquid channel when rotating, the multiple micro-drainage holes are formed in the valve plate and serve as small-metering liquid channels, large-metering liquid drainage and small-metering liquid drainage are sequentially controlled through the control system, the opening and closing processes of the valve are automatically conducted, manual intervention is not needed, and high convenience and safety are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of butterfly valves, and in particular to an adaptive flow rate control butterfly valve with adaptive flow rate control and intelligent regulation. Background Art

[0002] A butterfly valve is a valve that uses a disc-type opening and closing member to reciprocate about 90 degrees to open, close or adjust the flow of the medium. The butterfly valve is used in the industrial chemical industry. Since the reaction of different substances mixed is affected by the order of adding reagents, flow rate, temperature and addition amount, the valve state needs to be strictly controlled regardless of the ratio of water or any reagent.

[0003] Existing butterfly valves generally adjust the valve plate to a certain angle to change the size of the liquid channel. The adjustment of the valve plate is controlled by an electric actuator, but existing butterfly valves often do not have the function of real-time monitoring and fine-tuning of the liquid flow rate. The opening and closing of the liquid channel is generally operated by manual judgment and opening and closing of the electric actuator. If the flow rate monitoring and control are not timely, it will lead to problems such as abnormal reaction of mixed reagents, and the loss cannot be stopped in time. For some dangerous chemical reagents, abnormal reaction may cause explosion. When the amount of reagent added is insufficient, it is difficult to control the valve plate for fine-tuning. Therefore, it is necessary to manually measure a small amount of reagent for addition, and the operation process is cumbersome. Summary of the invention

[0004] 1. Technical issues to be resolved In view of the deficiencies in the prior art, the present invention provides an adaptive flow rate control butterfly valve with adaptive flow rate control and intelligent regulation, which solves the problem that the existing butterfly valve does not have the function of real-time monitoring and fine-tuning of liquid flow rate, resulting in the valve being difficult to control and the operation process being cumbersome.

[0005] (II) Technical solution To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an adaptive flow rate control butterfly valve with adaptive flow rate control and intelligent regulation, comprising a valve body of a butterfly valve, a sealing seat is fixedly arranged at the top of the valve body, a hollow valve plate which is consistent with the diameter of its channel is arranged inside the valve body, the rotating valve plate is used for large-scale liquid discharge, a plug hole is vertically opened at the center position of the valve plate, a main shaft extending to the inside of the plug hole is movably and vertically penetrated at the inner center position of the sealing seat, the main shaft is a tubular hollow structure and a worm is rotatably embedded and connected in the cavity, the top of the worm extends to the top of the main shaft, two groups of horizontal micro-row holes are opened on the side of the valve plate for small-scale liquid discharge, a baffle is rotatably arranged at each micro-row hole in the cavity of the valve plate for sealing the micro-row hole, and a drainage hole is opened on the side of each baffle for connecting the micro-row hole and guiding liquid.

[0006] Preferably, there are three micro-row holes in each group, the two groups of micro-row holes have the same size and are centrally symmetrically distributed about the center point of the valve plate, and each group of micro-row holes is equidistantly distributed in an array centered on a worm gear adjacent to it.

[0007] Preferably, the interior of the valve plate is hollow and two identical worm wheels are arranged in the cavity. The two worm wheels are symmetrical about the worm and mesh with the worm respectively. A rack plate is fixedly arranged on the central axis of each of the two worm wheels.

[0008] Preferably, the rack portion of the rack plate is an arc-shaped structure, and the arc center and the center of the worm wheel are the same circle center, and a row of racks is arranged on the outer circumferential surface of each baffle plate.

[0009] Preferably, the rack plate can mesh with the rack on the outer circumferential surface of any baffle plate, and the central axis of the worm gear is rotatably connected to the side wall of the valve plate via a rotating shaft.

[0010] Preferably, the diameter of the drainage hole is smaller than the diameter of the micro-drainage hole. When the drainage hole corresponds to the inside and outside of the micro-drainage hole, a drainage channel with a smaller diameter can be formed. The thickness of the baffle plate is consistent with the thickness of the cavity of the valve plate. A rubber pad is provided on the baffle plate and the contact surface with the cavity wall of the valve plate, and the two are rotatably connected with an interference fit.

[0011] Preferably, a driven gear 1 fixedly connected to the outer surface of the main shaft is disposed inside the sealing seat, a driving gear 1 is meshed with one side of the driven gear 1, and the driving gear 1 is rotatably connected to the sealing seat via a rotating shaft.

[0012] Preferably, the interior of the sealing seat is also provided with a driven gear 2 fixedly connected to the outer surface of the worm, the driven gear 2 is located directly above the driven gear 1 and the two are the same size, and a driving gear 2 is meshed with one side of the driven gear 2, and the driving gear 2 is rotatably connected to the sealing seat through a rotating shaft.

[0013] Preferably, a sealing cover is installed on the top of the sealing seat by bolts, and motor one and motor two are installed on the top of the sealing cover respectively, the output shaft of motor one movably passes through the sealing cover and is connected to driving gear one, and the output shaft of motor two movably passes through the sealing cover and is connected to driving gear two.

[0014] Preferably, the valve body is provided with a control system, including flow sensors provided at both ends of the inlet and outlet of the valve body, for monitoring the liquid flow; and a controller 1 electrically connected to the motor 1, and a controller 2 electrically connected to the motor 2; The flow sensor, controller one and controller two all transmit data to the computing server via a wireless communication network.

[0015] (III) Beneficial effects Compared with the prior art, the present invention provides an adaptive flow rate control butterfly valve with adaptive flow rate control and intelligent regulation, which has the following beneficial effects: By setting a valve plate in the valve body as a large metering liquid channel when it rotates, and setting a plurality of micro-row holes on the valve plate as small metering liquid channels, and at the same time setting a control system, using a flow sensor to monitor the flow signal in real time, and a computing server to send, receive and calculate the flow signal, firstly sending an instruction to controller one, and controller one starts motor one to open the large metering liquid channel, and then sending the calculated instruction to controller two, and controller two starts motor two to open the small metering liquid channel, so that the process of opening and closing the valve is automatically carried out without manual intervention, which has high convenience and safety; A baffle plate for sealing the micro-row holes is arranged at each micro-row hole inside the valve plate, and a drainage hole is opened on the baffle plate. When the baffle plate rotates until the drainage hole corresponds to the inside and outside of the micro-row hole, that is, overlaps, the liquid can be discharged along the small metering channel formed at the overlapping position. The number of overlapping drainage holes and micro-row holes is adjusted according to the required amount of liquid, thereby achieving the purpose of fine-tuning the butterfly valve for small-metered discharge and quantitative discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings: Figure 1 This is the appearance diagram of the butterfly valve of the present invention; Figure 2 This is a diagram of the internal structure of the sealing seat at the top end of the valve body of the present invention; Figure 3 It is a sectional side view of the internal structure of the valve body and the sealing seat of the present invention; Figure 4 This is a disassembled diagram of the valve seat and valve plate of the present invention; Figure 5 It is a partial cutaway view of the valve plate of the present invention; Figure 6 For the present invention Figure 1 A front view of Figure 7 A partial cross-sectional view of the internal structure of the valve plate of the present invention; Figure 8 This is a split structural diagram of the baffle plate and the position of the micro-row holes inside the valve plate of the present invention.

[0017] Description of reference numerals: 1. Valve body; 2. Sealing seat; 21. Sealing cover; 211. Motor 1; 212. Motor 2; 22. Main shaft; 221. Worm; 23. Driven gear 1; 231. Driving gear 1; 24. Driven gear 2; 241. Driving gear 2; 3. Valve plate; 31. Micro-row hole; 32. Plug hole; 4. Worm gear; 41. Rack plate; 42. Baffle plate; 421. Drain hole. DETAILED DESCRIPTION

[0018] The following will describe the implementation methods of the present application in detail with the help of accompanying drawings and examples, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0019] like Figure 1-8 As shown in the figure, it is the first embodiment of the present invention. To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an adaptive flow rate control butterfly valve with adaptive flow rate control and intelligent regulation, comprising a valve body 1 of a butterfly valve, a sealing seat 2 is fixedly arranged on the top of the valve body 1, a hollow valve plate 3 having the same diameter as its channel is arranged inside the valve body 1, the rotary valve plate is used for large-scale metering and discharging, a plug hole 32 is vertically opened at the center of the valve plate 3, the top end of the plug hole 32 is connected with the outside of the valve plate 3, and the bottom end is located at the valve plate 3. In the cavity, the inner center position of the sealing seat 2 is vertically penetrated by a main shaft 22 extending to the inside of the socket 32, the main shaft 22 is a tubular hollow structure and a worm 221 is rotatably embedded in the cavity, the top of the worm 221 extends to the top of the main shaft 22, the threaded part of the worm 221 is mainly located at the center of the channel of the valve body 1, both ends of the threaded part of the worm 221 are smooth shafts, and a part of the shaft is movably embedded in the main shaft 22, and the other part of the shaft is rotatably connected to the bottom end of the socket 32; Among them, Figure 5 As shown, the side wall of the main shaft 22 is provided with three equidistant protrusions, and the side wall of the socket 32 ​​is provided with three grooves for the protrusions to be engaged. When the main shaft 22 is embedded and connected inside the socket 32, the protrusions are firmly engaged in the grooves to increase the lateral connection strength between the two, and at the same time make the longitudinal removal of the two more convenient; Further, such as Figure 5-8 As shown, two groups of horizontal micro-row holes 31 are provided on the side of the valve plate 3. The diameter of the micro-row holes 31 is much smaller than the diameter of the valve plate 3 and is used for small-metered liquid discharge. A baffle 42 is rotatably provided at each micro-row hole 31 in the cavity of the valve plate 3 to seal the micro-row hole 31. A liquid discharge hole 421 is provided on the side of each baffle 42 to connect the micro-row hole 31 and guide the liquid. Furthermore, the diameter of the drainage hole 421 is smaller than the diameter of the micro-row hole 31. When the drainage hole 421 corresponds to the micro-row hole 31 inside and outside, a drainage channel with a smaller diameter can be formed. The thickness of the baffle plate 42 is consistent with the thickness of the cavity of the valve plate 3. A rubber pad is provided on the baffle plate 42 on the surface that fits with the cavity wall of the valve plate 3, and the two are rotatably connected with an interference fit to ensure the sealing between the two and avoid leakage into the cavity of the valve plate 3. The baffle plate 42 fits on the cavity wall of the valve plate 3 and can rotate in situ. When the baffle plate 42 rotates until the drainage hole 421 corresponds to the micro-row hole 31 inside and outside, that is, overlaps, the liquid can be discharged along the channel formed at the overlapping position. During the rotation of the baffle plate 42, the process change trajectory of the channel from closing to opening is that the channel changes from small to large, and the process change trajectory from opening to closing is that the channel changes from large to small. Therefore, the size of the channel is directly determined by the size of the rotation angle of the baffle plate 42. Furthermore, the number of each group of micro-row holes 31 is three, the two groups of micro-row holes 31 are of the same size and are centrally symmetrically distributed about the center point of the valve plate 3, each group of micro-row holes 31 is respectively distributed in an equidistant array with a worm gear 4 as the center, the interior of the valve plate 3 is hollow and two identical worm gears 4 are arranged in the cavity, the two worm gears 4 are symmetrical about the worm 221 and are respectively meshed with the worm 221, a rack plate 41 is respectively fixed on the central axis of the two worm gears 4, the rack part of the rack plate 41 is an arc-shaped structure and the arc center is the same as the center of the worm gear 4, and the outer circumferential surface of each baffle plate 42 is provided with A row of racks is provided, and the rack plate 41 can mesh with the rack on the outer circumferential surface of any baffle plate 42. The central axis of the worm gear 4 is rotatably connected to the side wall of the valve plate 3 through a rotating shaft. The arc length of the rack plate 41 is set so that it can only mesh with the rack on the outer circumferential surface of one of the baffle plates 42 when it rotates. In this way, the rotation angle of the rack plate 41 can be selected according to the amount of liquid to be added, and then the multiple baffle plates 42 are driven to rotate one after another. Different numbers of baffle plates 42 are rotated according to the required amount of liquid to block and open the micro-discharge holes 31, thereby achieving the purpose of fine-tuning the butterfly valve to perform small-metered discharge and quantitative discharge.

[0020] Embodiment 2, as Figure 1-3 As shown, the interior of the sealing seat 2 is provided with a driven gear 23 fixedly connected to the outer surface of the main shaft 22, and a driving gear 231 is meshed on one side of the driven gear 23. The driving gear 231 is rotatably connected to the sealing seat 2 through a rotating shaft, and the driven gear 23 is driven to rotate by driving the driving gear 231. Since the diameter of the driving gear 231 is much smaller than the diameter of the driven gear 23, the rotation speed of the driven gear 23 is lower than the rotation speed of the driving gear 231, so that the driven gear 23 has a higher stability when driving the main shaft 22 and the valve plate 3 to rotate; Furthermore, the interior of the sealing seat 2 is also provided with a driven gear 24 fixedly connected to the outer surface of the worm 221. The driven gear 24 is located directly above the driven gear 1 23 and the two are of the same size. A driving gear 241 is meshed on one side of the driven gear 24. The driving gear 241 is rotatably connected to the sealing seat 2 through a rotating shaft. A certain distance is provided between the driven gear 1 23 and the driven gear 24. The two rotate independently, and the driven gear 24 is driven to rotate by driving the driving gear 241 to rotate. As above, the speed of the driven gear 24 is also less than the speed of the driving gear 241, which makes it easy to control when the speed is slow. Further, a sealing cover 21 is installed on the top of the sealing seat 2 by bolts, and a motor 211 and a motor 212 are installed on the top of the sealing cover 21 respectively, the output shaft of the motor 211 movably penetrates the sealing cover 21 and is connected to the driving gear 231, and the output shaft of the motor 212 movably penetrates the sealing cover 21 and is connected to the driving gear 241, wherein the motor 211 and the motor 212 are both positive and negative motors, the motor 211 drives the driving gear 231 to rotate through its output shaft, the driving gear 231 drives the driven gear 23 to rotate, and then drives the main shaft 22 and the valve plate 3 to rotate, so as to achieve the effect of opening and closing the liquid channel, and the rotation of the valve plate 3 enables the liquid channel of the butterfly valve to mainly discharge large amounts of liquid; The output shaft of the second motor 212 drives the second driving gear 241 to rotate, and then drives the second driven gear 24 and the worm 221 to rotate. When the worm 221 rotates, it drives the two meshing worm wheels 4 on both sides to rotate. The two worm wheels 4 rotate in opposite directions. During the rotation of the worm wheel 4, the rack plate 41 is driven to rotate synchronously with the center of the worm wheel 4 as the center of the circle. During the movement of the rack plate 41, multiple baffle plates 42 distributed in the array on the same side are driven to rotate one after another. The rotation angle of the rack plate 41 is controlled according to the amount of liquid to be added, so as to achieve the purpose of fine-tuning the butterfly valve to perform small-metered discharge and quantitative discharge. The valve body 1 is provided with a control system, including flow sensors provided at both ends of the inlet and outlet of the valve body 1, for monitoring the liquid flow; and a controller 1 electrically connected to the motor 1 211, and a controller 2 electrically connected to the motor 212; The flow sensor, controller one and controller two all transmit data to the computing server via a wireless communication network.

[0021] When the above embodiment is working, the computing server sends the required flow instructions to the controller 1 and the controller 2 respectively. When the instruction is sent to the controller 1, the controller 1 starts the motor 1 211, and the motor 1 211 drives the driving gear 1 231 to rotate through its output shaft, and the driving gear 1 231 drives the driven gear 1 23 to rotate, thereby driving the main shaft 22 and the valve plate 3 to rotate, opening the liquid channel, and performing large-scale liquid discharge. After the large-scale liquid discharge is completed, the real-time flow is monitored according to the flow sensor and the real-time flow signal is transmitted to the computing server. The computing server compares the set flow instruction with the received flow data, determines the difference between the two, and selects to continue to open or close the liquid channel according to the difference. Since the liquid discharge measurement of the channel is relatively large, the difference is set within a certain range. According to the flow difference after the large metering channel is closed, the computing server calculates the difference and sends the required remaining flow instruction to the controller 2. The controller 2 starts the motor 212. The output shaft of the motor 212 drives the driving gear 241 to rotate, and then drives the driven gear 24 and the worm 221 to rotate. When the worm 221 rotates, it drives the two worm wheels 4 meshing on both sides to rotate, and then drives the rack plate 41 to rotate synchronously. During the movement of the rack plate 41, the multiple baffles 42 distributed in the array on the same side are driven to rotate one after another. The start of the motor 212 is controlled according to the required flow, and then the rotation angle of the rack plate 41 is controlled, so as to achieve the purpose of fine-tuning the butterfly valve for small-metered discharge and quantitative discharge. The opening and closing process of the valve is automatically carried out without human intervention, with high efficiency and safety effects.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adaptive flow rate control butterfly valve with adaptive flow rate control and intelligent regulation, comprising a valve body (1) of a butterfly valve, characterized in that: A sealing seat (2) is fixedly arranged at the top of the valve body (1), and a hollow valve plate (3) having the same diameter as the passage thereof is arranged inside the valve body (1). The rotating valve plate is used for large-metered liquid discharge. A plug hole (32) is vertically opened at the center of the valve plate (3). A main shaft (22) extending to the inside of the plug hole (32) is movably and vertically penetrated through the center of the sealing seat (2). The main shaft (22) is a tubular hollow structure and a worm (221) is rotatably embedded and connected in the cavity. The top of the worm (221) extends above the top of the main shaft (22). Two groups of micro-row holes (31) in a horizontal direction are opened on the side of the valve plate (3) for small-metered liquid discharge. A baffle (42) is rotatably arranged at each micro-row hole (31) in the cavity of the valve plate (3) for sealing the micro-row hole (31). A liquid discharge hole (421) is opened on the side of each baffle (42) for connecting the micro-row hole (31) and guiding liquid.

2. The adaptive flow rate control butterfly valve with adaptive flow rate control and intelligent regulation according to claim 1 is characterized in that: Each group of micro-row holes (31) has three micro-row holes (31), the two groups of micro-row holes (31) are of the same size and are centrally symmetrically distributed about the center point of the valve plate (3), and each group of micro-row holes (31) is distributed in an equidistant array with a worm gear (4) adjacent to it as the center.

3. The adaptive flow rate control butterfly valve with adaptive flow rate control and intelligent regulation according to claim 1, characterized in that: The interior of the valve plate (3) is hollow and two identical worm wheels (4) are arranged in the cavity; the two worm wheels (4) are symmetrical about the worm (221) and are respectively meshed with the worm (221); a rack plate (41) is respectively fixedly arranged on the central axis of the two worm wheels (4).

4. The adaptive flow rate control butterfly valve with adaptive flow rate control and intelligent regulation according to claim 3 is characterized by: The rack portion of the rack plate (41) is an arc-shaped structure, and the arc center and the center of the worm wheel (4) are the same circle center, and a row of racks is provided on the outer circumferential surface of each baffle plate (42).

5. The adaptive flow rate control butterfly valve with adaptive flow rate control and intelligent regulation according to claim 4, characterized in that: The rack plate (41) can mesh with a rack on the outer circumferential surface of any baffle plate (42), and the central axis of the worm gear (4) is rotatably connected to the side wall of the valve plate (3) via a rotating shaft.

6. The adaptive flow rate control butterfly valve with adaptive flow rate control and intelligent regulation according to claim 1, characterized in that: The diameter of the drainage hole (421) is smaller than the diameter of the micro-drain hole (31); when the drainage hole (421) corresponds to the micro-drain hole (31) inside and outside, a drainage channel with a smaller diameter can be formed; the thickness of the baffle plate (42) is consistent with the thickness of the cavity of the valve plate (3); a rubber pad is provided on the baffle plate (42) on the surface that fits with the cavity wall of the valve plate (3), and the two are rotatably connected in an interference fit.

7. The adaptive flow rate control butterfly valve with adaptive flow rate control and intelligent regulation according to claim 1, characterized in that: A driven gear 1 (23) fixedly connected to the outer surface of the main shaft (22) is arranged inside the sealing seat (2); a driving gear 1 (231) is meshed with one side of the driven gear 1 (23); the driving gear 1 (231) is rotatably connected to the sealing seat (2) via a rotating shaft.

8. The adaptive flow rate control butterfly valve with adaptive flow rate control and intelligent regulation according to claim 7, characterized in that: The sealing seat (2) is also provided with a driven gear 2 (24) fixedly connected to the outer surface of the worm (221). The driven gear 2 (24) is located directly above the driven gear 1 (23) and the two are of the same size. A driving gear 2 (241) is meshed with one side of the driven gear 2 (24). The driving gear 2 (241) is rotatably connected to the sealing seat (2) via a rotating shaft.

9. The adaptive flow rate control butterfly valve with adaptive flow rate control and intelligent regulation according to claim 8, characterized in that: A sealing cover (21) is mounted on the top of the sealing seat (2) via bolts. A motor 1 (211) and a motor 2 (212) are mounted on the top of the sealing cover (21). The output shaft of the motor 1 (211) movably passes through the sealing cover (21) and is connected to the driving gear 1 (231). The output shaft of the motor 2 (212) movably passes through the sealing cover (21) and is connected to the driving gear 2 (241).

10. The adaptive flow rate control butterfly valve with adaptive flow rate control and intelligent regulation according to claim 9, characterized in that: The valve body (1) is provided with a control system, comprising flow sensors arranged at both ends of the inlet and outlet of the valve body (1) for monitoring the liquid flow; and a controller 1 electrically connected to the motor 1 (211), and a controller 2 electrically connected to the motor 2 (212); The flow sensor, controller one and controller two all transmit data to the computing server via a wireless communication network.

Images