Multi-blade type electric flow regulating valve

Abstract

The invention relates to the technical field of flow regulating valves, in particular to a multi-blade type electric flow regulating valve which comprises a valve body. The valve further comprises a valve element, a cleaning mechanism, a detection mechanism and a driving mechanism, and the valve element, the cleaning mechanism, the detection mechanism and the driving mechanism are all installed on the valve body. The driving mechanism provides power for the valve element, the valve element is matched with the valve body to adjust the flow of liquid, the cleaning mechanism cleans solid particles in the valve element, and the detection mechanism detects the sealing effect of the valve element. Power is provided for the valve element through the driving mechanism, the valve element adjusts the flow of liquid, then when the valve element is completely closed, solid particles in the valve element are cleaned through the cleaning mechanism, the valve element is conveniently and completely closed, and after the valve element is completely closed, the cleaning mechanism is used for cleaning the solid particles in the valve element. And the detection mechanism is matched with the cleaning mechanism to detect the sealing effect of the valve element, so that the practicability of the equipment is improved.

Description

Technical Field

[0001] The invention relates to the technical field of flow control valves, and in particular to a multi-leaf electric flow control valve. Background Art

[0002] A flow regulating valve, also known as a self-operated balancing valve, a flow control valve, a flow controller, a dynamic balancing valve, or a static balancing valve, is an intuitive and simple flow regulating control device. Existing flow regulating valves, such as the flow regulating valve disclosed in the invention patent with publication number CN114542733B and a flow regulating valve disclosed in the invention patent with publication number CN110617334B, can both regulate the flow of the liquid.

[0003] However, it was found during use that the existing flow control valve has a relatively simple structure, poor flexibility in flow control, and poor effect in precise control of flow. In addition, during the transportation of liquid containing solid particles, when closing the valve, the solid particles are easily stuck in the valve core, making it difficult to close the valve tightly, resulting in poor practicality. Therefore, a multi-leaf electric flow control valve is urgently needed to improve the above problems. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a multi-leaf electric flow control valve which provides power to the valve core through a driving mechanism so that the valve core can adjust the flow of liquid. When the valve core is fully closed, the solid particles in the valve core are cleaned by a cleaning mechanism to facilitate the complete closing of the valve core. After the valve core is fully closed, the sealing effect of the valve core is detected by a detection mechanism in cooperation with the cleaning mechanism, thereby improving the practicality of the equipment.

[0005] A multi-leaf electric flow control valve of the present invention comprises a valve body; a valve core, a cleaning mechanism, a detection mechanism and a driving mechanism, wherein the valve core, the cleaning mechanism, the detection mechanism and the driving mechanism are all mounted on the valve body;

[0006] The driving mechanism provides power to the valve core, the valve core cooperates with the valve body to adjust the flow rate of the liquid, the cleaning mechanism cleans the solid particles in the valve core, and the detection mechanism detects the sealing effect of the valve core;

[0007] The driving mechanism provides power to the valve core so that the valve core adjusts the flow of the liquid. When the valve core is fully closed, the solid particles in the valve core are cleaned by the cleaning mechanism to facilitate the complete closing of the valve core. After the valve core is fully closed, the sealing effect of the valve core is detected by the detection mechanism in cooperation with the cleaning mechanism, thereby improving the practicability of the equipment.

[0008] Preferably, the valve body includes an outer shell, a central sealing tube, two sets of connecting flanges and two sets of sealing rings, the central sealing tube is installed in the middle of the outer shell, the two sets of connecting flanges are respectively installed at the top and bottom of the outer shell, and the two sets of sealing rings are respectively installed on the two sets of connecting flanges; the two sets of connecting flanges are installed on the liquid delivery pipeline, and the gaps between the two sets of connecting flanges and the liquid delivery pipeline are sealed by the two sets of sealing rings, and then the opening and closing degree of the valve core is adjusted, and then the liquid flows through the two sets of connecting flanges and the valve core, thereby improving the practicality of the equipment.

[0009] Preferably, the valve core includes two groups of brackets, two groups of gear rings, multiple groups of connecting rods, multiple groups of adjusting blades and two groups of sealing layers, the two groups of brackets are respectively rotatably installed on the top and bottom of the central sealing tube, the two groups of gear rings are respectively mounted on the two groups of brackets, one end of the multiple groups of connecting rods are respectively rotatably installed on the two groups of brackets, one end of the multiple groups of adjusting blades are respectively rotatably installed on the top and bottom of the central sealing tube, the other end of the multiple groups of connecting rods are respectively rotatably installed on the other end of the multiple groups of adjusting blades, two groups of sealing layers are installed on the central sealing tube and two groups of connecting flanges, and the two groups of sealing layers seal the multiple groups of adjusting blades respectively; the two groups of gear rings are driven to rotate by a driving mechanism, and the multiple groups of adjusting blades are rotated through transmission by multiple groups of connecting rods, the spacing of the multiple groups of adjusting blades is adjusted, and then the flow rate of the liquid is adjusted, thereby improving the practicability of the equipment.

[0010] Preferably, the driving mechanism includes a reducer, a driving motor, a rotating shaft, two sets of gears, a rotating handle and two sets of limiting mechanisms, the reducer is mounted on the housing, the driving motor is mounted on the reducer, and the output shaft of the driving motor is connected to the input end of the reducer, one end of the rotating shaft is mounted on the output end of the reducer, and the other end of the rotating shaft passes through the housing from top to bottom, the two sets of gears are mounted on the rotating shaft, and the two sets of gears are respectively meshed and connected with the two sets of gear rings, the rotating handle is mounted on the bottom of the rotating shaft, and the two sets of limiting mechanisms are both installed in the housing; turn on the driving motor, drive the rotating shaft to rotate through the reducer transmission, and then the two sets of gears are respectively meshed and transmitted with the two sets of gear rings to adjust the spacing of the multiple sets of adjusting blades, and then the two sets of gear rings are respectively locked by the two sets of limiting mechanisms to ensure the stability of the valve, and when the power is off, the spacing of the multiple sets of adjusting blades can be adjusted by rotating the rotating handle, thereby improving the practicality of the equipment.

[0011] Preferably, the limiting mechanism includes an electric cylinder, a limiting column, a guide sleeve, a spring and a ball. The electric cylinder is installed in an outer shell, the guide sleeve is fixedly installed on the inner wall of the outer shell, the limiting column is slidably installed in the guide sleeve, and one end of the limiting column is connected to one end of the electric cylinder, and the ball is installed on the other end of the limiting column through a spring; the electric cylinder is extended and the limiting column is guided by the guide sleeve so that the ball is squeezed onto the gear ring. When the ball passes between two groups of gear teeth of the gear ring, the elasticity of the spring makes the ball, spring and the other end of the limiting column extend between the two groups of gear teeth to limit the gear ring, thereby improving the practicability of the equipment.

[0012] Preferably, the cleaning mechanism includes a booster cylinder, a one-way valve, a multi-stage electric cylinder, a piston, a first electrically-controlled valve and multiple groups of connectors, the multiple groups of adjusting blades are each provided with an exhaust passage inside, the multiple groups of adjusting blades are each provided with a first jet hole, the two groups of sealing layers are each provided with multiple groups of second jet holes, the inner walls of the two groups of sealing layers are respectively connected to the tips of the multiple groups of adjusting blades, and the first jet holes on the multiple groups of adjusting blades correspond to the multiple groups of second jet holes on the two groups of sealing layers, the booster cylinder is mounted on the outer shell, the one-way valve is mounted on the bottom of the booster cylinder, the multi-stage electric cylinder is mounted on the top of the booster cylinder, the piston is mounted on the bottom end of the multi-stage electric cylinder, and the piston is slidably mounted in the booster cylinder, and the first electrically-controlled valve is mounted on the booster cylinder. At the bottom of the boost cylinder, multiple groups of connectors are respectively installed on multiple groups of adjusting blades; during installation, the multiple groups of connectors are connected to the first electric-controlled valve through a hose, and then when the multiple groups of adjusting blades are closed, the multi-stage electric cylinder contracts to make the one-way valve suck air into the boost cylinder, and then the multiple groups of multi-stage electric cylinders extend to compress the air in the boost cylinder. When the air pressure in the boost cylinder reaches the set value, the first electric-controlled valve opens to make the compressed air in the boost cylinder pass through the first electric-controlled valve, the hose and multiple groups of connectors in turn, and enter the exhaust passage of the multiple groups of adjusting blades, and then the compressed air is ejected through the first jet holes on the multiple groups of adjusting blades to blow away the solid particles between the multiple groups of adjusting blades, thereby improving the practicability of the equipment.

[0013] Preferably, the detection mechanism includes a connecting pipe, a second electrically controlled valve and a pressure sensor, one end of the connecting pipe is connected to the interior of the boost cylinder, and the other end of the connecting pipe extends to the middle of the center sealing tube, the second electrically controlled valve is installed on the other end of the connecting pipe, and the pressure sensor is installed on the inner wall of the center sealing tube; after multiple groups of adjusting blades are closed, the air is discharged into the center sealing tube by opening the second electrically controlled valve, and the pressure in the center sealing tube is detected by the pressure sensor, which is convenient for the staff to judge whether the multiple groups of adjusting blades are completely closed, thereby improving the practicability of the equipment.

[0014] Preferably, a pointer is provided on the group of gear rings, an opening and a scale are provided on the front end of the shell, and the front end of the pointer extends to the front side of the shell; the pointer follows the rotation of a group of gear rings, which makes it convenient for staff to observe the position of the scale and the pointer on the shell and judge the opening and closing degree of multiple groups of adjusting blades, thereby improving the practicability of the equipment.

[0015] Preferably, a buffer cavity is provided inside the two groups of connecting flanges, so as to facilitate buffering of the liquid entering the connecting flanges and reduce the impact force of the liquid on the two groups of sealing layers, thereby improving the practicability of the equipment.

[0016] Preferably, a delivery pipe is provided at the bottom of the boost cylinder, a third electrically-controlled valve is provided at one end of the delivery pipe, and the third electrically-controlled valve is located inside the outer shell, and a heating element is provided in the side wall of the boost cylinder; the gas in the boost cylinder is heated by the heating element, and then the third electrically-controlled valve is opened to discharge the hot gas into the outer shell, so that the hot gas enters into the two groups of sealing layers through the gaps between the multiple groups of adjusting blades and the central sealing tube, so that the multiple groups of sealing layers swell, and then the multiple-stage electric cylinder is contracted to make the piston suck out the gas in the two groups of sealing layers, and then the multi-stage electric cylinder is extended again to make the piston discharge the gas in the boost cylinder into the two groups of sealing layers, and the above steps are repeated repeatedly to maintain the temperature of the multiple groups of adjusting blades, prevent the multiple groups of adjusting blades from shrinking due to the influence of low temperature, and form gaps between the multiple groups of adjusting blades, thereby improving the practicability of the equipment.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. When the valve is completely closed, compressed air is ejected through multiple groups of regulating blades at the same time, so that the compressed air can blow away the solid particles between the multiple groups of regulating blades to prevent the solid particles from being stuck between the multiple groups of regulating blades, thus ensuring the valve closing effect;

[0019] 2. The heated air is discharged into the sealing layer through the cleaning mechanism to ensure the temperature of multiple sets of regulating blades and prevent the multiple sets of regulating blades from shrinking due to low temperature;

[0020] 3. Two sealing positions are formed through a multi-leaf structure to improve the sealing effect of the valve. After the two seals are closed, the sealing effect of the valve is judged by increasing the pressure between the two seals and detecting the pressure between the two seals. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the axonometric structure of the present invention;

[0022] Figure 2 It is a front view structural schematic diagram of the present invention;

[0023] Figure 3 It is a front cross-sectional structural schematic diagram of the present invention;

[0024] Figure 4 The present invention Figure 3 A schematic diagram of the enlarged structure of part A;

[0025] Figure 5 The present invention Figure 3 A schematic diagram of the enlarged structure of part B in FIG.

[0026] Figure 6 It is a schematic diagram of the axonometric cross-section structure of the present invention;

[0027] Figure 7 The present invention Figure 6 Schematic diagram of the enlarged structure of part C;

[0028] Figure 8 It is an axonometric enlarged structural schematic diagram of the valve core of the present invention;

[0029] Fig. 9 The present invention Figure 8 Schematic diagram of the enlarged structure of the D part;

[0030] Fig.10 The present invention Figure 8 Schematic diagram of the enlarged structure of part E in FIG.

[0031] Fig.11 It is a schematic diagram of the enlarged front cross-section structure of the booster cylinder of the present invention.

[0032] Markings in the attached drawings: 1. outer shell; 2. center sealing tube; 3. connecting flange; 4. sealing ring; 5. bracket; 6. gear ring; 7. connecting rod; 8. adjusting blade; 9. sealing layer; 10. reducer; 11. driving motor; 12. rotating shaft; 13. gear; 14. rotating handle; 15. electric cylinder; 16. limiting column; 17. guide sleeve; 18. spring; 19. ball; 20. booster cylinder; 21. one-way valve; 22. multi-stage electric cylinder; 23. piston; 24. first electric-controlled valve; 25. connector; 26. first jet hole; 27. second jet hole; 28. connecting pipe; 29. ​​second electric-controlled valve; 30. pressure sensor; 31. pointer; 32. buffer chamber; 33. delivery pipe; 34. third electric-controlled valve. DETAILED DESCRIPTION

[0033] In order to facilitate understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0034] Example 1

[0035] A multi-leaf electric flow control valve comprises a valve body; a valve core, a cleaning mechanism, a detection mechanism and a driving mechanism, wherein the valve core, the cleaning mechanism, the detection mechanism and the driving mechanism are all mounted on the valve body;

[0036] The driving mechanism provides power to the valve core, the valve core cooperates with the valve body to adjust the flow rate of the liquid, the cleaning mechanism cleans the solid particles in the valve core, and the detection mechanism detects the sealing effect of the valve core;

[0037] The valve body comprises a shell 1, a central sealing tube 2, two sets of connecting flanges 3 and two sets of sealing rings 4. The central sealing tube 2 is installed in the middle of the shell 1. The two sets of connecting flanges 3 are installed at the top and bottom of the shell 1 respectively. The two sets of sealing rings 4 are installed on the two sets of connecting flanges 3 respectively.

[0038] The valve core includes two groups of brackets 5, two groups of gear rings 6, multiple groups of connecting rods 7, multiple groups of regulating blades 8 and two groups of sealing layers 9. The two groups of brackets 5 are respectively rotatably mounted on the top and bottom of the central sealing tube 2, the two groups of gear rings 6 are respectively sleeved on the two groups of brackets 5, one end of the multiple groups of connecting rods 7 are respectively rotatably mounted on the two groups of brackets 5, one end of the multiple groups of regulating blades 8 are respectively rotatably mounted on the top and bottom of the central sealing tube 2, the other end of the multiple groups of connecting rods 7 are respectively rotatably mounted on the other end of the multiple groups of regulating blades 8, the two groups of sealing layers 9 are both installed on the central sealing tube 2 and the two groups of connecting flanges 3, and the two groups of sealing layers 9 respectively seal the multiple groups of regulating blades 8;

[0039] The driving mechanism includes a reducer 10, a driving motor 11, a rotating shaft 12, two sets of gears 13, a rotating handle 14 and two sets of limiting mechanisms. The reducer 10 is installed on the housing 1, the driving motor 11 is installed on the reducer 10, and the output shaft of the driving motor 11 is connected to the input end of the reducer 10, one end of the rotating shaft 12 is installed on the output end of the reducer 10, and the other end of the rotating shaft 12 passes through the housing 1 from top to bottom, the two sets of gears 13 are installed on the rotating shaft 12, and the two sets of gears 13 are respectively meshed and connected with the two sets of gear rings 6, the rotating handle 14 is installed at the bottom of the rotating shaft 12, and the two sets of limiting mechanisms are installed in the housing 1;

[0040] The limiting mechanism includes an electric cylinder 15, a limiting column 16, a guide sleeve 17, a spring 18 and a ball 19. The electric cylinder 15 is installed in the housing 1, the guide sleeve 17 is fixedly installed on the inner wall of the housing 1, the limiting column 16 is slidably installed in the guide sleeve 17, and one end of the limiting column 16 is connected to one end of the electric cylinder 15, and the ball 19 is installed on the other end of the limiting column 16 through the spring 18;

[0041] The cleaning mechanism includes a booster cylinder 20, a one-way valve 21, a multi-stage electric cylinder 22, a piston 23, a first electric-controlled valve 24 and a plurality of connectors 25. The plurality of adjusting blades 8 are provided with exhaust passages inside, the plurality of adjusting blades 8 are provided with first jet holes 26, the two sealing layers 9 are provided with a plurality of second jet holes 27, the inner walls of the two sealing layers 9 are respectively connected to the tips of the plurality of adjusting blades 8, and the first jet holes 26 on the plurality of adjusting blades 8 correspond to the plurality of second jet holes 27 on the two sealing layers 9, the booster cylinder 20 is mounted on the housing 1, the one-way valve 21 is mounted on the bottom of the booster cylinder 20, the multi-stage electric cylinder 22 is mounted on the top of the booster cylinder 20, the piston 23 is mounted on the bottom end of the multi-stage electric cylinder 22, and the piston 23 is slidably mounted in the booster cylinder 20, the first electric-controlled valve 24 is mounted on the bottom of the booster cylinder 20, and the plurality of connectors 25 are respectively mounted on the plurality of adjusting blades 8;

[0042] The detection mechanism includes a connecting pipe 28, a second electrically controlled valve 29 and a pressure sensor 30. One end of the connecting pipe 28 is connected to the inside of the booster cylinder 20, and the other end of the connecting pipe 28 extends to the middle of the central sealing pipe 2. The second electrically controlled valve 29 is installed on the other end of the connecting pipe 28, and the pressure sensor 30 is installed on the inner wall of the central sealing pipe 2.

[0043] The set of gear rings 6 is provided with a pointer 31, the front end of the housing 1 is provided with an opening and a scale, and the front end of the pointer 31 extends to the front side of the housing 1;

[0044] The two sets of connecting flanges 3 are both provided with a buffer cavity 32 inside;

[0045] The multiple sets of connectors 25 are connected to the first electric control valve 24 through a hose, and the two sets of connecting flanges 3 are installed on the liquid delivery pipeline. The gaps between the two sets of connecting flanges 3 and the liquid delivery pipeline are sealed by two sets of sealing rings 4. Then, the driving motor 11 is turned on, and the drive shaft 12 is driven to rotate through the reducer 10. Then, the two sets of gears 13 are respectively engaged with the two sets of gear rings 6 to drive the multiple sets of connecting rods 7 to respectively drive the multiple sets of adjusting blades 8 to rotate, and the spacing of the multiple sets of adjusting blades 8 is adjusted, thereby adjusting the flow of the liquid. The amount of flow is measured, and during the adjustment process, the pointer 31 follows the rotation of a group of gear rings 6, which is convenient for the staff to observe the scale on the housing 1 and the position of the pointer 31, and judge the opening and closing degree of multiple groups of adjustment blades 8. After the flow adjustment is completed, the electric cylinder 15 is extended, and the limit column 16 is guided by the guide sleeve 17, so that the ball 19 is squeezed on the gear ring 6. When the ball 19 passes between the two groups of gear teeth of the gear ring 6, the elasticity of the spring 18 makes the ball 19, the spring 18 and the other end of the limit column 16 extend into To between the two sets of gear teeth, the gear ring 6 is limited. When the multiple sets of adjusting blades 8 are closed, the one-way valve 21 sucks air into the boost cylinder 20 through the contraction of the multi-stage electric cylinder 22, and then the air in the boost cylinder 20 is compressed through the extension of the multiple sets of multi-stage electric cylinders 22. When the air pressure in the boost cylinder 20 reaches the set value, the first electric-controlled valve 24 is opened, so that the compressed air in the boost cylinder 20 passes through the first electric-controlled valve 24, the hose and the multiple sets of connectors 25 in turn, and enters the exhaust passage of the multiple sets of adjusting blades 8, and then the compressed air is ejected through the first jet holes 26 on the multiple sets of adjusting blades 8 to blow away the solid particles between the multiple sets of adjusting blades 8 to prevent the solid particles from being stuck between the multiple sets of adjusting blades 8, causing the regulating valve to be unable to be completely closed. Then, the air is discharged into the central sealing tube 2 by opening the second electric-controlled valve 29, and the pressure in the central sealing tube 2 is detected by the pressure sensor 30, so that the staff can judge whether the multiple sets of adjusting blades 8 are completely closed, thereby improving the practicality of the equipment.

[0046] Example 2

[0047] like Figures 1 to 11 As shown, a multi-leaf electric flow control valve includes a valve body; a valve core, a cleaning mechanism, a detection mechanism and a driving mechanism, and the valve core, the cleaning mechanism, the detection mechanism and the driving mechanism are all installed on the valve body;

[0048] The driving mechanism provides power to the valve core, the valve core cooperates with the valve body to adjust the flow rate of the liquid, the cleaning mechanism cleans the solid particles in the valve core, and the detection mechanism detects the sealing effect of the valve core;

[0049] The valve body comprises a shell 1, a central sealing tube 2, two sets of connecting flanges 3 and two sets of sealing rings 4. The central sealing tube 2 is installed in the middle of the shell 1. The two sets of connecting flanges 3 are installed at the top and bottom of the shell 1 respectively. The two sets of sealing rings 4 are installed on the two sets of connecting flanges 3 respectively.

[0050] The valve core includes two groups of brackets 5, two groups of gear rings 6, multiple groups of connecting rods 7, multiple groups of regulating blades 8 and two groups of sealing layers 9. The two groups of brackets 5 are respectively rotatably mounted on the top and bottom of the central sealing tube 2, the two groups of gear rings 6 are respectively sleeved on the two groups of brackets 5, one end of the multiple groups of connecting rods 7 are respectively rotatably mounted on the two groups of brackets 5, one end of the multiple groups of regulating blades 8 are respectively rotatably mounted on the top and bottom of the central sealing tube 2, the other end of the multiple groups of connecting rods 7 are respectively rotatably mounted on the other end of the multiple groups of regulating blades 8, the two groups of sealing layers 9 are both installed on the central sealing tube 2 and the two groups of connecting flanges 3, and the two groups of sealing layers 9 respectively seal the multiple groups of regulating blades 8;

[0051] The driving mechanism includes a reducer 10, a driving motor 11, a rotating shaft 12, two sets of gears 13, a rotating handle 14 and two sets of limiting mechanisms. The reducer 10 is installed on the housing 1, the driving motor 11 is installed on the reducer 10, and the output shaft of the driving motor 11 is connected to the input end of the reducer 10, one end of the rotating shaft 12 is installed on the output end of the reducer 10, and the other end of the rotating shaft 12 passes through the housing 1 from top to bottom, the two sets of gears 13 are installed on the rotating shaft 12, and the two sets of gears 13 are respectively meshed and connected with the two sets of gear rings 6, the rotating handle 14 is installed at the bottom of the rotating shaft 12, and the two sets of limiting mechanisms are installed in the housing 1;

[0052] The limiting mechanism includes an electric cylinder 15, a limiting column 16, a guide sleeve 17, a spring 18 and a ball 19. The electric cylinder 15 is installed in the housing 1, the guide sleeve 17 is fixedly installed on the inner wall of the housing 1, the limiting column 16 is slidably installed in the guide sleeve 17, and one end of the limiting column 16 is connected to one end of the electric cylinder 15, and the ball 19 is installed on the other end of the limiting column 16 through the spring 18;

[0053] The cleaning mechanism includes a booster cylinder 20, a one-way valve 21, a multi-stage electric cylinder 22, a piston 23, a first electric-controlled valve 24 and a plurality of connectors 25. The plurality of adjusting blades 8 are provided with exhaust passages inside, the plurality of adjusting blades 8 are provided with first jet holes 26, the two sealing layers 9 are provided with a plurality of second jet holes 27, the inner walls of the two sealing layers 9 are respectively connected to the tips of the plurality of adjusting blades 8, and the first jet holes 26 on the plurality of adjusting blades 8 correspond to the plurality of second jet holes 27 on the two sealing layers 9, the booster cylinder 20 is mounted on the housing 1, the one-way valve 21 is mounted on the bottom of the booster cylinder 20, the multi-stage electric cylinder 22 is mounted on the top of the booster cylinder 20, the piston 23 is mounted on the bottom end of the multi-stage electric cylinder 22, and the piston 23 is slidably mounted in the booster cylinder 20, the first electric-controlled valve 24 is mounted on the bottom of the booster cylinder 20, and the plurality of connectors 25 are respectively mounted on the plurality of adjusting blades 8;

[0054] The detection mechanism includes a connecting pipe 28, a second electrically controlled valve 29 and a pressure sensor 30. One end of the connecting pipe 28 is connected to the inside of the booster cylinder 20, and the other end of the connecting pipe 28 extends to the middle of the central sealing pipe 2. The second electrically controlled valve 29 is installed on the other end of the connecting pipe 28, and the pressure sensor 30 is installed on the inner wall of the central sealing pipe 2.

[0055] The set of gear rings 6 is provided with a pointer 31, the front end of the housing 1 is provided with an opening and a scale, and the front end of the pointer 31 extends to the front side of the housing 1;

[0056] The two sets of connecting flanges 3 are both provided with a buffer cavity 32 inside;

[0057] A delivery pipe 33 is provided at the bottom of the boost cylinder 20, a third electrically controlled valve 34 is provided at one end of the delivery pipe 33, and the third electrically controlled valve 34 is located inside the housing 1, and a heating element is provided in the side wall of the boost cylinder 20;

[0058] The multiple groups of connectors 25 are connected to the first electric control valve 24 through a hose, and the two groups of connecting flanges 3 are installed on the liquid delivery pipeline. The gaps between the two groups of connecting flanges 3 and the liquid delivery pipeline are sealed by two groups of sealing rings 4. Then, the driving motor 11 is turned on, and the drive shaft 12 is driven to rotate through the reducer 10, and then the two groups of gears 13 are respectively meshed with the two groups of gear rings 6 for transmission, so that the multiple groups of connecting rods 7 respectively push the multiple groups of adjusting blades 8 to rotate, and adjust the spacing of the multiple groups of adjusting blades 8, and then adjust the flow rate of the liquid. In the adjustment process, the pointer 31 follows the rotation of a group of gear rings 6, which is convenient for the staff to observe the scale on the housing 1 and the position of the pointer 31, and adjust the multiple groups of adjusting blades 8. The opening and closing degree is judged. After the flow adjustment is completed, the electric cylinder 15 is extended, and the limit column 16 is guided by the guide sleeve 17, so that the ball 19 is squeezed on the gear ring 6. When the ball 19 passes between the two sets of gear teeth of the gear ring 6, the elasticity of the spring 18 makes the ball 19, the spring 18 and the other end of the limit column 16 extend between the two sets of gear teeth to limit the gear ring 6. When the multiple sets of adjusting blades 8 are closed, the multi-stage electric cylinder 22 is contracted to make the one-way valve 21 suck air into the boost cylinder 20, and then the multiple sets of multi-stage electric cylinders 22 are extended to compress the air in the boost cylinder 20. When the air pressure in the boost cylinder 20 reaches the set value, the first electric control valve 24 is opened to make the boost cylinder 20 The compressed air in the cylinder 20 passes through the first electrically controlled valve 24, the hose and the multiple groups of connectors 25 in sequence, enters the exhaust passage of the multiple groups of regulating blades 8, and then sprays the compressed air through the first jet holes 26 on the multiple groups of regulating blades 8 to blow away the solid particles between the multiple groups of regulating blades 8 to prevent the solid particles from being stuck between the multiple groups of regulating blades 8, causing the regulating valve to be unable to be completely closed. Then, by opening the second electrically controlled valve 29, the air is discharged into the central sealing tube 2, and the pressure in the central sealing tube 2 is detected by the pressure sensor 30, so that the staff can judge whether the multiple groups of regulating blades 8 are completely closed. When the ambient temperature is too low or the temperature of the transported liquid is also too low, the compressed air in the cylinder 20 is discharged to the central sealing tube 2. , the gas in the boost cylinder 20 is heated by the heating element, and then the third electric control valve 34 is opened to discharge the hot gas into the outer shell 1, so that the hot gas enters into the two groups of sealing layers 9 through the gaps between the multiple groups of adjusting blades 8 and the central sealing tube 2, so that the multiple groups of sealing layers 9 are expanded, and then the multi-stage electric cylinder 22 is contracted to make the piston 23 suck out the gas in the two groups of sealing layers 9, and then the multi-stage electric cylinder 22 is extended again to make the piston 23 discharge the gas in the boost cylinder 20 into the two groups of sealing layers 9, and the above steps are repeated repeatedly to maintain the temperature of the multiple groups of adjusting blades 8, prevent the multiple groups of adjusting blades 8 from shrinking due to low temperature, and form gaps between the multiple groups of adjusting blades 8, thereby improving the practicality of the equipment.

[0059] The main functions achieved by the present invention are:

[0060] 1. Improve the sealing effect: When the valve is completely closed, compressed air is ejected through multiple groups of regulating blades at the same time, so that the compressed air blows away the solid particles between the multiple groups of regulating blades to prevent the solid particles from being stuck between the multiple groups of regulating blades, thereby ensuring the valve closing effect. Two sealing positions are formed through the multi-leaf structure to improve the sealing effect of the valve. After the two seals are closed, the sealing effect of the valve is judged by increasing the pressure between the two seals and detecting the pressure between the two seals, thereby further improving the sealing effect.

[0061] 2. Improve applicability: The heated air is discharged into the sealing layer through the cleaning mechanism to ensure the temperature of multiple sets of regulating blades and prevent multiple sets of regulating blades from shrinking due to low temperature;

[0062] 3. Improve the flexibility of flow regulation: by closing or opening multiple sets of regulating blades at the same time, it is convenient to flexibly adjust the flow.

[0063] The installation method, connection method or setting method of a multi-leaf electric flow regulating valve of the present invention are all common mechanical methods, and any method that can achieve its beneficial effects can be implemented; a battery is arranged inside the electric cylinder 15; the sealing layer 9, reducer 10, drive motor 11, electric cylinder 15, multi-stage electric cylinder 22, first electric control valve 24, second electric control valve 29, pressure sensor 30 and third electric control valve 34 of a multi-leaf electric flow regulating valve of the present invention are purchased on the market, and technicians in the industry only need to install and operate it according to the accompanying instruction manual, without the need for creative labor by technicians in this field.

[0064] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A multi-leaf electric flow control valve, comprising a valve body; characterized in that: It also includes a valve core, a cleaning mechanism, a detection mechanism and a driving mechanism, and the valve core, the cleaning mechanism, the detection mechanism and the driving mechanism are all installed on the valve body; The driving mechanism provides power for the valve core, the valve core cooperates with the valve body to adjust the flow of the liquid, the cleaning mechanism cleans the solid particles in the valve core, and the detection mechanism detects the sealing effect of the valve core.

2. A multi-leaf electric flow control valve as claimed in claim 1, characterized in that: The valve body comprises an outer shell (1), a central sealing tube (2), two sets of connecting flanges (3) and two sets of sealing rings (4); the central sealing tube (2) is installed in the middle of the outer shell (1); the two sets of connecting flanges (3) are installed at the top and bottom of the outer shell (1) respectively; and the two sets of sealing rings (4) are installed on the two sets of connecting flanges (3) respectively.

3. A multi-leaf electric flow control valve as claimed in claim 2, characterized in that: The valve core comprises two groups of brackets (5), two groups of gear rings (6), multiple groups of connecting rods (7), multiple groups of adjusting blades (8) and two groups of sealing layers (9). The two groups of brackets (5) are respectively rotatably mounted on the top and bottom of the central sealing tube (2). The two groups of gear rings (6) are respectively mounted on the two groups of brackets (5). One end of the multiple groups of connecting rods (7) are respectively rotatably mounted on the two groups of brackets (5). One end of the multiple groups of adjusting blades (8) are respectively rotatably mounted on the top and bottom of the central sealing tube (2). The other ends of the multiple groups of connecting rods (7) are respectively rotatably mounted on the other ends of the multiple groups of adjusting blades (8). The two groups of sealing layers (9) are both mounted on the central sealing tube (2) and the two groups of connecting flanges (3). The two groups of sealing layers (9) respectively seal the multiple groups of adjusting blades (8).

4. A multi-leaf electric flow control valve as claimed in claim 3, characterized in that: The driving mechanism comprises a reducer (10), a driving motor (11), a rotating shaft (12), two sets of gears (13), a rotating handle (14) and two sets of limiting mechanisms. The reducer (10) is mounted on the housing (1), the driving motor (11) is mounted on the reducer (10), and the output shaft of the driving motor (11) is connected to the input end of the reducer (10). One end of the rotating shaft (12) is mounted on the output end of the reducer (10), and the other end of the rotating shaft (12) passes through the housing (1) from top to bottom. The two sets of gears (13) are both mounted on the rotating shaft (12), and the two sets of gears (13) are respectively meshed and connected with the two sets of gear rings (6). The rotating handle (14) is mounted on the bottom of the rotating shaft (12), and the two sets of limiting mechanisms are both mounted in the housing (1).

5. A multi-leaf electric flow control valve as claimed in claim 4, characterized in that: The limiting mechanism comprises an electric cylinder (15), a limiting column (16), a guide sleeve (17), a spring (18) and a ball (19); the electric cylinder (15) is installed in a housing (1); the guide sleeve (17) is fixedly installed on the inner wall of the housing (1); the limiting column (16) is slidably installed in the guide sleeve (17); one end of the limiting column (16) is connected to one end of the electric cylinder (15); and the ball (19) is installed on the other end of the limiting column (16) through the spring (18).

6. A multi-leaf electric flow control valve as claimed in claim 3, characterized in that: The cleaning mechanism comprises a booster cylinder (20), a one-way valve (21), a multi-stage electric cylinder (22), a piston (23), a first electric control valve (24) and a plurality of connectors (25); the plurality of adjusting blades (8) are provided with exhaust passages inside, the plurality of adjusting blades (8) are provided with first jet holes (26), the two sealing layers (9) are provided with a plurality of second jet holes (27), the inner walls of the two sealing layers (9) are respectively connected to the tips of the plurality of adjusting blades (8), and the first jet holes on the plurality of adjusting blades (8) are connected to the tips of the plurality of adjusting blades (8). (26) respectively correspond to the multiple groups of second jet holes (27) on the two groups of sealing layers (9), the booster cylinder (20) is installed on the outer shell (1), the one-way valve (21) is installed on the bottom of the booster cylinder (20), the multi-stage electric cylinder (22) is installed on the top of the booster cylinder (20), the piston (23) is installed on the bottom end of the multi-stage electric cylinder (22), and the piston (23) is slidably installed in the booster cylinder (20), the first electric control valve (24) is installed on the bottom of the booster cylinder (20), and the multiple groups of connectors (25) are respectively installed on the multiple groups of adjusting blades (8).

7. A multi-leaf electric flow control valve as claimed in claim 6, characterized in that: The detection mechanism comprises a connecting pipe (28), a second electrically controlled valve (29) and a pressure sensor (30); one end of the connecting pipe (28) is communicated with the interior of the boost cylinder (20); the other end of the connecting pipe (28) extends to the middle of the central sealing pipe (2); the second electrically controlled valve (29) is installed on the other end of the connecting pipe (28); and the pressure sensor (30) is installed on the inner wall of the central sealing pipe (2).

8. A multi-leaf electric flow control valve as claimed in claim 3, characterized in that: The set of toothed rings (6) is provided with a pointer (31), the front end of the housing (1) is provided with an opening and a scale, and the front end of the pointer (31) extends to the front side of the housing (1).

9. A multi-leaf electric flow control valve as claimed in claim 2, characterized in that: Buffer chambers (32) are provided inside the two sets of connecting flanges (3).

10. The multi-leaf electric flow control valve according to claim 6, characterized in that: A delivery pipe (33) is provided at the bottom of the boost cylinder (20), a third electrically controlled valve (34) is provided at one end of the delivery pipe (33), and the third electrically controlled valve (34) is located inside the housing (1), and a heating element is provided in the side wall of the boost cylinder (20).

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