Response speed regulating device based on fluorine chemical small vacuum electric valve and its use method

Abstract

The present invention belongs to the field of regulating devices, and specifically relates to a response speed regulating device based on a small vacuum electric valve of a fluorine chemical industry and a method for using the same, aiming to solve the problem that the prior art easily causes medium leakage. The present invention comprises a valve body, an actuator, an electric control flange, a connection detection chamber, a density detection component, an regulating component and a ball valve. The actuator can control the opening and closing of the ball valve, and the density detection component can detect the density of the medium in the connection detection chamber. When the actuator controls the ball valve to close, the regulating component and the ball valve fit appropriately. By setting the density detection component and the regulating component, the device can adjust the cross-sectional area of ​​the medium flow appropriately according to the density of the medium flowing in the valve body during the valve closing process, and at the same time effectively slow down the medium flow rate, thereby reducing the potential damage to the device caused by the water hammer effect caused by the sudden change in flow rate, and enhancing the adaptability and stability of the valve.

Description

Technical Field

[0001] The invention belongs to the field of regulating devices, and in particular relates to a response speed regulating device based on a small vacuum electric valve of a fluorine chemical industry and a use method thereof. Background Art

[0002] The response speed adjustment device of a small vacuum electric valve is a device that can adjust and control the response speed of the valve opening, half-opening or closing action in the vacuum system according to the control signal, so as to achieve the purpose of adjusting the speed of gas flow and the vacuum degree. Through this adjustment function, users can flexibly optimize the operating state of the vacuum system according to actual needs to ensure the best performance under various process conditions.

[0003] When the response speed adjustment device of a small vacuum electric valve controls the rapid opening and closing of a ball valve, the rapid change in flow rate will cause the valve body to be affected by severe water hammer. Therefore, a design is usually adopted to allow the sealing ring to fit tightly with the ball valve to ensure that the medium flowing in the valve does not leak during the opening and closing process.

[0004] When the response speed adjustment device of a small vacuum electric valve adopts a design that allows the sealing ring to fit tightly against the ball valve, this method increases the friction resistance between the sealing ring and the ball valve, the rotational operation resistance of the ball valve will increase, and the wear will increase. After long-term use, the ball valve will be affected by the dual effects of the water hammer effect and friction, and the surface will no longer be smooth, which will increase the friction coefficient between the ball valve and the sealing ring, causing the sealing ring replacement cycle to become uncontrollable. Failure to replace the sealing ring in time will cause media leakage problems, increasing safety hazards. Summary of the invention

[0005] In order to solve the problem of medium leakage in the prior art, in some embodiments of the present invention, on the one hand, a response speed adjustment device based on a fluorine chemical small vacuum electric valve is provided, including: a valve body, an actuator, an electric control flange, a connection detection chamber, a density detection component, an adjustment component and a ball valve;

[0006] A ball valve is arranged in the valve body, the actuator is fixedly arranged on the valve body, one end of the valve body is fixedly connected to the electric control flange, the other end of the valve body is installed with the connection detection chamber, the density detection component is fixedly arranged on the connection detection chamber, the adjustment component is arranged in one end of the valve body close to the electric control flange, and the actuator is electrically connected to the electric control flange and the density detection component;

[0007] Among them, the actuator can control the opening and closing of the ball valve, the density detection component can detect the density of the medium in the connection detection chamber, and when the actuator controls the ball valve to close, the adjustment component fits the ball valve appropriately.

[0008] According to the response speed adjustment device based on the fluorine chemical small vacuum electric valve provided in some embodiments of the present application, the density detection component includes a tuning fork density meter and a piezoelectric element and a tuning fork vibration unit arranged on the tuning fork density meter, and the tuning fork vibration unit extends into the connection detection chamber.

[0009] According to the response speed regulating device based on the fluorine chemical small vacuum electric valve provided in some embodiments of the present application, the regulating component includes a grooved limit tube, a transmission component, a sealing component, a sliding tube component and a regulating control component;

[0010] An installation groove is provided on the inner side of the grooved limit tube, the transmission assembly is fixedly connected to the inner side of the grooved limit tube, a slide tube assembly is slidably connected to the inner side of the installation groove, one end of the adjustment control assembly is transmission-connected to one end of the slide tube assembly through the transmission assembly, the other end of the slide tube assembly is connected to one end of the sealing assembly, and the other end of the sealing assembly is fitted with the outer side of the ball valve.

[0011] According to the response speed adjustment device based on the fluorine chemical small vacuum electric valve provided in some embodiments of the present application, the transmission assembly includes an inner rotating shaft and a curved rotating block, and the curved rotating block is coaxially arranged on the outer side of the inner rotating shaft of the block.

[0012] According to the response speed regulating device based on the fluorine chemical small vacuum electric valve provided in some embodiments of the present application, the sealing assembly includes a grooved threaded column, a rotating connector, an extrusion spring, a grooved ring gasket and a sealing ring;

[0013] A curved groove is provided on the outer side of the grooved threaded column, one end of the grooved threaded column is coaxially installed with one end of the rotating connector, the other end of the rotating connector is fixedly connected with one end of the extrusion spring, the other end of the extrusion spring is fixedly connected with one side of the grooved ring gasket, the other side of the grooved ring gasket is provided with the sealing ring, and the sealing ring fits the ball valve appropriately.

[0014] According to the response speed regulating device based on the fluorine chemical small vacuum electric valve provided in some embodiments of the present application, the sliding pipe assembly includes a grooved transmission block, a hollow pipe, and a clamping column in the groove;

[0015] An oblique groove is provided on the inner side of the grooved transmission block, one side of the grooved transmission block is fixedly connected to the hollow tube, an in-groove clamping column is fixedly connected to the inner side of the hollow tube, the inner side of the hollow tube is fitted with the outer side of the grooved threaded column, the in-groove clamping column is adapted to be connected to the hollow tube, and the in-groove clamping column is adapted to be connected to the curved groove.

[0016] According to the response speed regulating device based on the fluorine chemical small vacuum electric valve provided in some embodiments of the present application, the regulating control component includes a baffle, a first curved frame, a connecting rotating column, a return spring and a second curved frame;

[0017] A through hole is provided on the end surface of the baffle, one side of the baffle is fixedly connected to one end of the first curved frame, the other end of the first curved frame is hinged to one end of the second curved frame through the connecting rotating column, an inter-curved frame groove is provided at one end of the second curved frame close to the first curved frame, the first curved frame extends into the inter-curved frame groove, and a return spring is provided at the connection between the first curved frame and the second curved frame, and the return spring can provide elastic support for the first curved frame and / or the second curved frame.

[0018] According to the response speed adjustment device based on the fluorine chemical small vacuum electric valve provided in some embodiments of the present application, a sliding hole is opened on the outer side of the grooved limiting tube, and a sliding column is slidably connected to the inner side of the sliding hole. The sliding column extends to the electric control flange, and a limiting short shaft is arranged at one end of the grooved limiting tube, and the limiting short shaft is arranged in the through hole.

[0019] According to some embodiments of the present application, the response speed regulating device based on the fluorine chemical small vacuum electric valve further includes a protection component, which includes a grooved connecting pipe, a protection frame, a rotating frame, a spoiler and a scraper column;

[0020] A connecting thread groove is provided on the inner side of the grooved connecting tube, one end of the grooved connecting tube is fixedly connected to one end of the protective frame, an inner rotating groove is provided on the inner side of the protective frame, a rotating frame frame is rotatably connected to the inner side of the inner rotating groove, a spoiler and a scraper column are provided on the end of the rotating frame away from the grooved connecting tube, and the spoiler is provided on the outer side of the scraper column.

[0021] On the other hand, the present application also provides a method for using a response speed regulating device, which is applied to the response speed regulating device based on a fluorine chemical small vacuum electric valve, and specifically comprises the following steps:

[0022] S1: The density detection component detects the density of the medium flowing in the pipeline and transmits the signal to the electronically controlled flange: the actuator controls the ball valve to rotate and open the valve. At this time, the medium in the pipeline will enter the connection detection chamber through the valve body. The circulating medium entering the connection detection chamber will push the spoiler to displace the spoiler. The multiple spoilers move together to drive the rotating frame to rotate. The rotation of the rotating frame drives the scraper to rotate. The scraper rotates and intercepts the medium to prevent the medium from directly rushing into the protection frame. At the same time, the inner surface of the protection frame is cleaned to ensure that the medium inside the protection frame is relatively flat and the density is relatively uniform. The tuning fork vibration unit will detect the density of the medium inside the protection frame and transmit a signal to the signal block on the electronically controlled flange according to the detected medium density.

[0023] S2: When the actuator controls the valve to close, the electrical control of the electronically controlled flange: When the actuator controls the ball valve to rotate and close the valve, the actuator will send a signal to the density detection component and the electronically controlled flange through the wire, so that the density detection component stops density detection and the density detection component no longer updates the electrical signal transmitted to the electronically controlled flange. At this time, the electronically controlled flange receives the signal sent by the actuator when closing the valve and the signal sent by the density detection component when opening the valve. Correspondingly, the electronically controlled flange controls the sliding column to slide a certain distance at a certain sliding speed in the sliding hole;

[0024] S3: During the valve closing process, the adjustment control component changes the medium flow rate and buffers the medium flow rate: when the sliding column moves downward and squeezes the first curved frame, the first curved frame will squeeze the return spring downward and rotate inside the installation groove. When the first curved frame rotates inside the installation groove, it will drive the fixed connection baffle to move. The limiting short shaft inside the through hole limits the baffle, so that the baffle rotates around the limiting short shaft, thereby changing the cross-sectional area of ​​the medium flow in the grooved limiting pipe, and generating a certain interception when the medium flows, so that the medium flow rate slows down;

[0025] S4: Change the sealing performance of the device according to the density of the medium, and change the degree of fit of the sealing component to the ball valve by the transmission of the transmission component between the devices: when the sliding column squeezes the first curved frame downward, the first curved frame will drive the second curved frame to move through the connecting rotating column, so that the second curved frame rotates inside the installation groove. When the second curved frame rotates, it will drive the curved surface rotating block to rotate around the rotating axis inside the block. Due to the limitation of the inclined groove, when the curved surface rotating block rotates, it will squeeze the grooved transmission block, so that the grooved transmission block moves and drives the fixedly connected hollow tube to move. The movement of the hollow tube changes the relative position of the fixedly connected column in the groove and the curved groove on its inner side, thereby rotating the grooved threaded column. Because the grooved threaded column is spirally connected to the grooved limiting tube, the grooved threaded column will extend out of the grooved limiting tube when it rotates, and pressure is applied to the grooved ring gasket by rotating the connecting head and the extrusion spring, so that the grooved ring gasket drives the sealing ring to fit the ball valve appropriately.

[0026] Beneficial effects of the present invention:

[0027] By setting up density detection components and adjustment components, the device can make appropriate adjustments to the cross-sectional area of ​​the medium flow according to the density of the medium flowing in the valve body during the valve closing process, while effectively slowing down the medium flow rate, reducing the potential damage to the device caused by the water hammer effect caused by sudden changes in flow rate, and enhancing the adaptability and stability of the valve.

[0028] By setting up the transmission assembly, sealing assembly, sliding tube assembly and adjustment control assembly, the contact pressure between the ball valve and the sealing ring can be dynamically adjusted according to the density of the medium flowing in the valve body without affecting the sealing performance, so that the sealing ring and the ball valve can achieve a moderate fit, which not only extends the service life of the ball valve and the sealing ring, but also improves the overall operation efficiency and reliability of the valve.

[0029] The set protection components can quickly respond to changes in the medium flow, and by gradually guiding and dispersing the medium flow, effectively reduce the impact speed and force of the medium, avoid eddy currents and disturbances in the medium inside the protection frame, ensure that the state of the detected medium is relatively smooth, and improve the accuracy of the device in detecting the medium density. At the same time, the inner surface of the protection frame is cleaned to improve the reliability of detecting different media. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0031] Figure 1 It is a schematic diagram of the overall structure of some embodiments of the present application;

[0032] Figure 2 It is a schematic diagram of the overall cross-sectional structure of some embodiments of the present application;

[0033] Figure 3 is a schematic diagram of an exploded structure of a density detection assembly in some embodiments of the present application;

[0034] Figure 4 is a schematic diagram of a cross-sectional structure of an adjustment component in some embodiments of the present application;

[0035] Figure 5 is a schematic diagram of the explosion structure of the protection assembly of some embodiments of the present application;

[0036] Figure 6 is a schematic diagram of the transmission assembly structure of some embodiments of the present application;

[0037] Figure 7 is a schematic diagram of the sealing assembly structure of some embodiments of the present application;

[0038] Figure 8 is a schematic diagram of the explosion structure of the sealing assembly of some embodiments of the present application;

[0039] Fig. 9 is a schematic diagram of a cross-sectional structure of a sliding tube assembly in some embodiments of the present application;

[0040] Fig.10 It is a schematic diagram of the structure of the regulating control component of some embodiments of the present application.

[0041] In the figure: 1, valve body; 2, actuator; 3, electric control flange; 4, connection detection chamber; 5, density detection component; 51, tuning fork density meter; 52, piezoelectric element; 53, tuning fork vibration unit; 54, protection component; 541, grooved connecting pipe; 542, connecting threaded groove; 543, protection frame; 544, rotating groove in the frame; 545, rotating frame; 546, spoiler; 547, scraper; 6, adjustment component; 61, grooved limit pipe; 62, installation groove; 63, sliding hole; 64, sliding column; 65, limit short shaft; 66, transmission component; 661, block internal rotation Shaft; 662, curved rotating block; 67, sealing assembly; 671, grooved threaded column; 672, curved groove; 673, rotating connector; 674, extrusion spring; 675, grooved ring gasket; 676, annular groove; 677, sealing ring; 68, sliding tube assembly; 681, grooved transmission block; 682, inclined groove; 683, hollow tube; 684, column in the groove; 69, adjustment control assembly; 691, baffle; 692, through hole; 693, first curved frame; 694, connecting rotating column; 695, reset spring; 696, second curved frame; 697, groove between curved frames; 7, ball valve. DETAILED DESCRIPTION

[0042] The present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the relevant invention are shown in the accompanying drawings.

[0043] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0044] like Figure 1-10 As shown, the present invention provides a response speed regulating device based on a small vacuum electric valve of a fluorine chemical industry and a method for using the same. In some embodiments of the present invention, on the one hand, a response speed regulating device based on a small vacuum electric valve of a fluorine chemical industry is provided, comprising: a valve body 1, an actuator 2, an electric control flange 3, a connection detection chamber 4, a density detection component 5, an adjustment component 6 and a ball valve 7;

[0045] A ball valve 7 is arranged in the valve body 1, an actuator 2 is fixedly arranged on the valve body 1, one end of the valve body 1 is fixedly connected to the electric control flange 3, a connection detection chamber 4 is installed at the other end of the valve body 1, a density detection component 5 is fixedly arranged on the connection detection chamber 4, an adjustment component 6 is arranged at one end of the valve body 1 close to the electric control flange 3, and the actuator 2 is electrically connected to the electric control flange 3 and the density detection component 5;

[0046] During specific implementation, an actuator 2 is fixedly connected to the upper end of the valve body 1, an electric control flange 3 is fixedly connected to one side of the valve body 1, a connection detection chamber 4 is installed on the other side of the valve body 1, a density detection component 5 is fixedly connected to the connection detection chamber 4, an adjustment component 6 is also fixedly connected to the side of the valve body 1 close to the electric control flange 3, and a ball valve 7 is rotatably connected to the inner side of the valve body 1.

[0047] The actuator 2 can control the opening and closing of the ball valve 7, and the density detection component 5 can detect the density of the medium in the connection detection chamber 4. When the actuator 2 controls the ball valve 7 to close, the adjustment component 6 fits the ball valve 7 appropriately.

[0048] During specific implementation, the angle between the actuator 2 and the ball valve 7 is 90°, the actuator 2 is electrically connected to the electric control flange 3 through a wire, one side of the adjustment component 6 is in contact with the outer side of the ball valve 7, the ball valve 7 and the adjustment component 6 have the same axis, and the angle between the density detection component 5 and the connection detection chamber 4 is 90°.

[0049] like Figure 3 As shown, in some embodiments, the density detection assembly 5 includes a tuning fork density meter 51 , a piezoelectric element 52 disposed on the tuning fork density meter 51 , and a tuning fork vibration unit 53 , and the tuning fork vibration unit 53 extends into the connection detection chamber 4 .

[0050] During specific implementation, the tuning fork density meter 51 is electrically connected to the actuator 2 through a wire, the piezoelectric element 52 is electrically connected to the electric control flange 3 through a wire, the inner side of the electric control flange 3 is fitted with the outer side of the adjustment component 6, and the inner side of the electric control flange 3 is slidably connected to the sliding column 64. Such a layout is more reasonable, which is conducive to the mutual cooperation of components while avoiding mutual obstruction between components, and can effectively improve the stability of the device.

[0051] like Figure 4-10As shown, in some embodiments, the adjustment component 6 includes a grooved limit tube 61, a transmission component 66, a sealing component 67, a sliding tube component 68 and an adjustment control component 69; an installation groove 62 is opened on the inner side of the grooved limit tube 61, the transmission component 66 is fixedly connected to the inner side of the grooved limit tube 61, and the sliding tube component 68 is slidably connected to the inner side of the installation groove 62; one end of the adjustment control component 69 is transmission-connected to one end of the sliding tube component 68 through the transmission component 66, the other end of the sliding tube component 68 is connected to one end of the sealing component 67, and the other end of the sealing component 67 is fitted with the outer side of the ball valve 7.

[0052] During specific implementation, the adjustment control component 69 can drive the sliding tube component 68 to move through the transmission component 66. When the sliding tube component 68 moves, the sealing component 67 can fit appropriately with the ball valve 7. Without affecting the sealing performance, the contact pressure between the ball valve 7 and the sealing component 67 can be dynamically adjusted according to the density of the medium flowing in the valve body 1, so that the sealing component 67 and the ball valve 7 can achieve a state of appropriate fit, which not only extends the service life of the ball valve 7 and the sealing component 67, but also improves the overall operation efficiency and reliability of the valve.

[0053] Specifically, the mounting groove 62 is cylindrical in shape, and there are several mounting grooves 62. The mounting grooves 62 are distributed in a circular array on the inner side of the grooved limiting tube 61. The sliding holes 63 correspond to the mounting grooves 62 one by one. The angle between the sliding column 64 and the grooved limiting tube 61 is 90°, and the outer side of the sliding column 64 fits with the inner side of the sliding hole 63. Such a design can achieve effective control of the device structure and improve the operation accuracy of the device.

[0054] like Figure 6 As shown, in some embodiments, the transmission assembly 66 includes an inner-block rotating shaft 661 and a curved rotating block 662 , and the curved rotating block 662 is coaxially arranged on the outer side of the inner-block rotating shaft 661 .

[0055] During specific implementation, the transmission assembly 66 corresponds one to one with the grooved limiting tube 61 , the angle between the inner rotating shaft 661 and the curved rotating block 662 is 90°, one side of the curved rotating block 662 is arc-shaped, and the outer side of the sliding tube assembly 68 fits with the inner side of the mounting groove 62 .

[0056] like Figure 7As shown, in some embodiments, the sealing assembly 67 includes a grooved threaded column 671, a rotating connector 673, an extrusion spring 674, a grooved ring gasket 675 and a sealing ring 677. A curved groove 672 is provided on the outer side of the grooved threaded column 671. One end of the grooved threaded column 671 is coaxially installed with one end of the rotating connector 673. The other end of the rotating connector 673 is fixedly connected to one end of the extrusion spring 674. The other end of the extrusion spring 674 is fixedly connected to one side of the grooved ring gasket 675. A sealing ring 677 is provided on the other side of the grooved ring gasket 675. The sealing ring 677 fits the ball valve 7 appropriately.

[0057] During specific implementation, the angle between the grooved threaded column 671 and the grooved limiting tube 61 is 90°, the grooved threaded column 671, the rotating connector 673 and the extrusion spring 674 are on the same axis, the angle between the extrusion spring 674 and the grooved ring gasket 675 is 90°, the inner side of the annular groove 676 fits with the outer side of the sealing ring 677, one side of the sealing ring 677 is arc-shaped, and one side of the sealing ring 677 fits with the outer side of the ball valve 7. Such a design is conducive to the mutual transmission of force between components, makes the sealing ring 677 fit more closely with the ball valve 7, and improves the operating accuracy of the device.

[0058] like Fig. 9 As shown, in some embodiments, the sliding tube assembly 68 includes a grooved transmission block 681, a hollow tube 683, and an in-groove clamping column 684. An inclined groove 682 is provided on the inner side of the grooved transmission block 681. One side of the grooved transmission block 681 is fixedly connected to the hollow tube 683. The inner side of the hollow tube 683 is fixedly connected with the in-groove clamping column 684. The inner side of the hollow tube 683 is fitted with the outer side of the grooved threaded column 671. The in-groove clamping column 684 is adapted to be connected to the hollow tube 683, and the in-groove clamping column 684 is adapted to be connected to the curved groove 672.

[0059] During specific implementation, the projection of the grooved transmission block 681 in the horizontal direction is a semicircle, the diameter of the grooved transmission block 681 is equal to the diameter of the hollow tube 683, the inner side of the hollow tube 683 fits with the outer side of the grooved threaded column 671, the angle formed between the in-groove clamping column 684 and the hollow tube 683 is 90°, and the outer side of the in-groove clamping column 684 fits with the inner side of the curved groove 672. Such a design is conducive to the mutual cooperation between components, makes the components fit precisely, improves the transmission effect, and ensures the precise operation of the device.

[0060] like Fig.10As shown, in some embodiments, the adjustment control assembly 69 includes a baffle 691, a first curved frame 693, a connecting rod 694, a return spring 695 and a second curved frame 696, a through hole 692 is provided on the end surface of the baffle 691, one side of the baffle 691 is fixedly connected to one end of the first curved frame 693, the other end of the first curved frame 693 is hinged to one end of the second curved frame 696 through the connecting rod 694, a curved frame groove 697 is provided at one end of the second curved frame 696 close to the first curved frame 693, the first curved frame 693 extends into the curved frame groove 697, and a return spring 695 is arranged at the connection between the first curved frame 693 and the second curved frame 696, and the return spring 695 can provide elastic support to the first curved frame 693 and / or the second curved frame 696.

[0061] During specific implementation, the angle between the first curved frame 693 and the sliding column 64 is 90°, the connecting rotating column 694 is fixedly connected with a baffle 691, the bottom end of the return spring 695 is fixedly connected with a grooved limiting tube 61, the angle between the return spring 695 and the grooved limiting tube 61 is 90°, the angle between the return spring 695 and the first curved frame 693 is 90°, and the first curved frame 693 is rotatably connected to the inner side of the curved frame groove 697. Such a design between the first curved frame 693 and the sliding column 64 can realize effective control of the device structure, and the setting of the return spring 695 can enable the device to reset quickly, thereby improving the working efficiency of the device.

[0062] In some embodiments, a sliding hole 63 is opened on the outside of the grooved limiting tube 61, and a sliding column 64 is slidingly connected to the inside of the sliding hole 63. The sliding column 64 extends to the grooved limiting tube 61 in the electric control flange 3, and a limiting short shaft 65 is set at one end. The limiting short shaft 65 is set in the through hole 692.

[0063] During specific implementation, a sliding column 64 is slidably connected to the inner side of the electric control flange 3, the angle between the sliding column 64 and the grooved limiting tube 61 is 90°, the outer side of the sliding column 64 is fitted with the inner side of the sliding hole 63, the angle between the first curved frame 693 and the sliding column 64 is 90°, and such a design between the first curved frame 693 and the sliding column 64 can realize effective control of the device structure, the angle between the limiting short shaft 65 and the grooved limiting tube 61 is 90°, the outer side of the limiting short shaft 65 is rotatably connected to a baffle 691, and the limiting short shaft 65 on the inner side of the through hole 692 limits the baffle 691, so that the baffle 691 rotates around the limiting short shaft 65.

[0064] like Figure 5As shown, in some embodiments, a protection component 54 is also included, and the protection component 54 includes a grooved connecting tube 541, a protection frame 543, a rotating frame 545, a spoiler 546 and a scraper column 547. A connecting thread groove 542 is provided on the inner side of the grooved connecting tube 541, one end of the grooved connecting tube 541 is fixedly connected to one end of the protection frame 543, an inner rotating groove 544 is provided on the inner side of the protection frame 543, and a rotating frame 545 is rotatably connected to the inner side of the inner rotating groove 544. A spoiler 546 and a scraper column 547 are provided on the end of the rotating frame 545 away from the grooved connecting tube 541, and the spoiler 546 is provided on the outer side of the scraper column 547.

[0065] In specific implementation, a plurality of spoilers 546 are provided, and the spoilers 546 are distributed in a circular array on the outside of the protective frame 543; a plurality of scraper posts 547 are provided, and the scraper posts 547 are distributed in a circular array on the inside of the protective frame 543; one side of the scraper posts 547 is arc-shaped, and one side of the scraper posts 547 is in contact with the inner side of the protective frame 543. Such a design is beneficial for the components to evenly share the forces they are subjected to, and can make the force transmission between the components more balanced, thereby improving the stability of the device operation.

[0066] On the other hand, Figure 1-10 As shown, the present application also provides a method for using a response speed regulating device, which is applied to a response speed regulating device based on a small vacuum electric valve of a fluorine chemical industry, and specifically includes the following steps:

[0067] S1: The density detection component 5 detects the density of the medium circulating in the pipeline and transmits the signal to the electric control flange 3: the actuator 2 controls the ball valve 7 to rotate to open the valve. At this time, the medium in the pipeline will enter the connection detection chamber 4 through the valve body 1. The circulating medium entering the connection detection chamber 4 will push the spoiler 546 to displace the spoiler 546. The multiple spoilers 546 move together to drive the rotating frame 545 to rotate. The rotation of the rotating frame 545 drives the scraper 547 to rotate. The scraper 547 rotates and intercepts the medium to prevent the medium from directly rushing into the protection frame 543. At the same time, the inner surface of the protection frame 543 is cleaned to ensure that the state of the medium inside the protection frame 543 is relatively smooth and the density is relatively uniform. The tuning fork vibration unit 53 will detect the density of the medium inside the protection frame 543, and transmit a signal to the signal block on the electric control flange 3 according to the detected medium density.

[0068] S2: When the actuator 2 controls the valve to close, the electrical control of the electric control flange 3: When the actuator 2 controls the ball valve 7 to rotate and close the valve, the actuator 2 will send a signal to the density detection component 5 and the electric control flange 3 through the wire, so that the density detection component 5 stops density detection, and the density detection component 5 no longer updates the electrical signal transmitted to the electric control flange 3. At this time, the electric control flange 3 receives the signal sent by the actuator 2 when closing the valve and the signal sent by the density detection component 5 when opening the valve. Correspondingly, the electric control flange 3 controls the sliding column 64 to slide a certain distance at a certain sliding speed in the sliding hole 63;

[0069] S3: During the valve closing process, the control component 69 is adjusted to change the medium flow rate and buffer the medium flow rate: when the sliding column 64 moves downward and squeezes the first curved frame 693, the first curved frame 693 will squeeze the return spring 695 downward and rotate inside the mounting groove 62. When the first curved frame 693 rotates inside the mounting groove 62, it will drive the fixed connection baffle 691 to move. The limiting short shaft 65 inside the through hole 692 limits the baffle 691, so that the baffle 691 rotates around the limiting short shaft 65, thereby changing the cross-sectional area of ​​the medium flow in the grooved limiting tube 61, and generating a certain interception when the medium flows, so that the medium flow rate slows down;

[0070] S4: Change the sealing performance of the device according to the density of the medium, and change the fit degree of the sealing component 67 to the ball valve 7 by the transmission of the transmission component 66 between the devices: when the sliding column 64 presses the first curved frame 693 downward, the first curved frame 693 will drive the second curved frame 696 to move through the connecting rotating column 694, so that the second curved frame 696 rotates inside the installation groove 62. When the second curved frame 696 rotates, it will drive the curved surface rotating block 662 to rotate around the rotating shaft 661 in the block. Due to the restriction of the inclined groove 682, when the curved surface rotating block 662 rotates, it will squeeze the grooved transmission block 681, so that The grooved transmission block 681 moves and drives the fixedly connected hollow tube 683 to move. The movement of the hollow tube 683 changes the relative position of the grooved clamping column 684 fixedly connected on its inner side and the curved groove 672, thereby causing the grooved threaded column 671 to rotate. Since the grooved threaded column 671 is spirally connected to the grooved limiting tube 61, the grooved threaded column 671 will extend out of the grooved limiting tube 61 when it rotates, and pressure is applied to the grooved ring gasket 675 by rotating the connecting head 673 and the extrusion spring 674, so that the grooved ring gasket 675 drives the sealing ring 677 to fit appropriately with the ball valve 7.

[0071] In the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0072] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0073] The term "comprise" or any other similar term is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent to such process, method, article, or apparatus / device.

[0074] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A response speed regulating device based on a small vacuum electric valve in fluorine chemical industry, characterized in that: include: A valve body (1), an actuator (2), an electric control flange (3), a connection detection chamber (4), a density detection component (5), an adjustment component (6) and a ball valve (7); A ball valve (7) is arranged in the valve body (1), the actuator (2) is fixedly arranged on the valve body (1), one end of the valve body (1) is fixedly connected to the electric control flange (3), the other end of the valve body (1) is installed with the connection detection chamber (4), the density detection component (5) is fixedly arranged on the connection detection chamber (4), the adjustment component (6) is arranged at one end of the valve body (1) close to the electric control flange (3), and the actuator (2) is electrically connected to the electric control flange (3) and the density detection component (5); The actuator (2) can control the opening and closing of the ball valve (7), the density detection component (5) can detect the density of the medium in the connection detection chamber (4), and when the actuator (2) controls the ball valve (7) to close, the adjustment component (6) and the ball valve (7) are appropriately fitted; The density detection component (5) comprises a tuning fork density meter (51), a piezoelectric element (52) and a tuning fork vibration unit (53) arranged on the tuning fork density meter (51), and the tuning fork vibration unit (53) extends into the connection detection chamber (4); The adjustment assembly (6) comprises a grooved limiting tube (61), a transmission assembly (66), a sealing assembly (67), a sliding tube assembly (68) and an adjustment control assembly (69); The grooved limiting tube (61) has an installation groove (62) formed on its inner side, the transmission assembly (66) is fixedly connected to the inner side of the grooved limiting tube (61), the sliding tube assembly (68) is slidably connected to the inner side of the installation groove (62), one end of the regulating control assembly (69) is transmission-connected to one end of the sliding tube assembly (68) through the transmission assembly (66), the other end of the sliding tube assembly (68) is connected to one end of the sealing assembly (67), and the other end of the sealing assembly (67) is in contact with the outer side of the ball valve (7); The transmission assembly (66) comprises an inner-block rotating shaft (661) and a curved surface rotating block (662), wherein the curved surface rotating block (662) is coaxially arranged outside the inner-block rotating shaft (661); The sealing assembly (67) comprises a grooved threaded column (671), a rotating connector (673), an extrusion spring (674), a grooved ring gasket (675) and a sealing ring (677); A curved groove (672) is provided on the outer side of the grooved threaded column (671); one end of the grooved threaded column (671) is coaxially mounted with one end of the rotating connector (673); the other end of the rotating connector (673) is fixedly connected with one end of the extrusion spring (674); the other end of the extrusion spring (674) is fixedly connected with one side of the grooved ring gasket (675); the other side of the grooved ring gasket (675) is provided with the sealing ring (677); the sealing ring (677) is appropriately fitted with the ball valve (7); The slide tube assembly (68) comprises a grooved transmission block (681), a hollow tube (683), and a clamping column (684) in the groove; An oblique groove (682) is provided on the inner side of the grooved transmission block (681); one side of the grooved transmission block (681) is fixedly connected to the hollow tube (683); an inner groove clamping column (684) is fixedly connected to the inner side of the hollow tube (683); the inner side of the hollow tube (683) is fitted with the outer side of the grooved threaded column (671); and the inner groove clamping column (684) is adaptively connected to the curved groove (672); The regulating control assembly (69) comprises a baffle (691), a first curved frame (693), a connecting rotating column (694), a return spring (695) and a second curved frame (696); A through hole (692) is provided on the end surface of the baffle (691); one side of the baffle (691) is fixedly connected to one end of the first curved frame (693); the other end of the first curved frame (693) is hinged to one end of the second curved frame (696) via the connecting rotating column (694); an inter-curved frame groove (697) is provided at one end of the second curved frame (696) close to the first curved frame (693); the first curved frame (693) extends into the inter-curved frame groove (697); a return spring (695) is provided at the connection between the first curved frame (693) and the second curved frame (696); the return spring (695) can provide elastic support for the first curved frame (693) and / or the second curved frame (696).

2. The response speed regulating device based on the fluorine chemical small vacuum electric valve according to claim 1 is characterized in that: A sliding hole (63) is provided on the outside of the grooved limiting tube (61), a sliding column (64) is slidably connected to the inside of the sliding hole (63), and the sliding column (64) extends into the electric control flange (3). A limiting short shaft (65) is provided at one end of the grooved limiting tube (61), and the limiting short shaft (65) is arranged in the through hole (692).

3. The response speed regulating device based on the fluorine chemical small vacuum electric valve according to claim 2 is characterized in that: It also includes a protection assembly (54), wherein the protection assembly (54) includes a grooved connecting pipe (541), a protection frame (543), a rotating frame (545), a spoiler (546), and a scraper column (547); A connecting thread groove (542) is provided on the inner side of the grooved connecting tube (541); one end of the grooved connecting tube (541) is fixedly connected to one end of the protection frame (543); an inner rotating groove (544) is provided on the inner side of the protection frame (543); a rotating frame (545) is rotatably connected to the inner side of the inner rotating groove (544); a spoiler (546) and a scraper column (547) are provided on one end of the rotating frame (545) away from the grooved connecting tube (541); the spoiler (546) is provided on the outer side of the scraper column (547).

4. A method for using a response speed regulating device, applied to the response speed regulating device based on a fluorine chemical small vacuum electric valve according to claim 3, characterized in that: The specific steps include: S1: The density detection component (5) detects the density of the medium flowing in the pipeline and transmits the signal to the electric control flange (3): the actuator (2) controls the ball valve (7) to rotate and open the valve. At this time, the medium in the pipeline will enter the connection detection chamber (4) through the valve body (1). The medium flowing into the connection detection chamber (4) will push the spoiler (546) to cause the spoiler (546) to move. The multiple spoilers (546) move together to drive the rotating frame (545) to rotate. The rotating frame (545) rotates to drive the scraper (547) to rotate. The scraper (547) rotates and intercepts the medium to prevent the medium from directly rushing into the protection frame (543). At the same time, the inner surface of the protection frame (543) is cleaned to ensure that the state of the medium inside the protection frame (543) is relatively smooth and the density is uniform. The tuning fork vibration unit (53) will detect the density of the medium inside the protection frame (543) and transmit a signal to the signal block on the electric control flange (3) according to the detected medium density. S2: When the actuator (2) controls the valve to close, the electrical control of the electric control flange (3): When the actuator (2) controls the ball valve (7) to rotate and close the valve, the actuator (2) sends a signal to the density detection component (5) and the electric control flange (3) through the wire, so that the density detection component (5) stops density detection and the density detection component (5) no longer updates the electrical signal transmitted to the electric control flange (3). At this time, the electric control flange (3) receives the signal sent by the actuator (2) when the valve is closed and the signal sent by the density detection component (5) when the valve is opened. Correspondingly, the electric control flange (3) controls the sliding column (64) to slide in the sliding hole (63); S3: During the valve closing process, the control component (69) is adjusted to change the medium flow rate and buffer the medium flow rate: when the sliding column (64) moves downward and squeezes the first curved frame (693), the first curved frame (693) squeezes the return spring (695) downward and rotates inside the mounting groove (62). When the first curved frame (693) rotates inside the mounting groove (62), it drives the fixed connection baffle (691) to move. The limiting short shaft (65) inside the through hole (692) limits the baffle (691), so that the baffle (691) rotates around the limiting short shaft (65), thereby changing the cross-sectional area of ​​the medium flow in the grooved limiting tube (61) and intercepting the medium flow, so that the medium flow rate is slowed down; S4: The sealing performance of the device is changed according to the density of the medium, and the degree of fit of the sealing component (67) to the ball valve (7) is changed by the transmission of the transmission component (66) between the devices: when the sliding column (64) presses the first curved frame (693) downward, the first curved frame (693) will drive the second curved frame (696) to move through the connecting rotating column (694), so that the second curved frame (696) rotates inside the installation groove (62). When the second curved frame (696) rotates, it will drive the curved surface rotating block (662) to rotate around the rotating shaft (661) inside the block. Due to the restriction of the inclined groove (682), when the curved surface rotating block (662) rotates, it will squeeze the grooved transmission block (681), so that The grooved transmission block (681) moves and drives the fixedly connected hollow tube (683) to move. The movement of the hollow tube (683) changes the relative position of the grooved clamping column (684) fixedly connected to the inner side thereof and the curved groove (672), thereby causing the grooved threaded column (671) to rotate. Since the grooved threaded column (671) is spirally connected to the grooved limiting tube (61), the grooved threaded column (671) rotates and extends out of the grooved limiting tube (61). The grooved ring gasket (675) is pressed by the rotating connector (673) and the extrusion spring (674), so that the grooved ring gasket (675) drives the sealing ring (677) to fit the ball valve (7) appropriately.

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