Intelligent control valve with self-adaptive sealing structure

Abstract

The invention discloses an intelligent control valve with a self-adaptive sealing structure, and relates to the technical field of valves, the intelligent control valve comprises a valve main body, a self-adaptive sealing mechanism is arranged in the valve main body, a control box matched with the self-adaptive sealing mechanism is arranged on the valve main body, and the valve main body comprises a valve body, a valve rod and a gate plate; a valve seat groove in sliding fit with the gate plate is formed in the valve body, the self-adaptive sealing mechanisms comprise sealing bottom rings, sealing side rings, piston rings and sealing gaskets and are installed on the left side and the right side of the valve seat groove, and the control box comprises a box body, a controller, a pressure regulating pipe and a motor and is installed at the lower end of the valve body. The valve has the advantages of automatically compensating sealing abrasion, monitoring the sealing state in real time and intelligently regulating and controlling, and the problems that a traditional valve is poor in sealing performance, high in maintenance cost and lack of real-time monitoring are solved.

Description

Technical Field

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

[0002] Valves, as essential components in industrial fluid control systems, are widely used in a variety of fields, including petroleum, natural gas, chemicals, and electric power. Their primary function is to control the flow direction, pressure, and flow rate of media in pipelines. Therefore, the quality of their sealing performance directly impacts the efficiency and safety of the entire system. Over long-term use, traditional valves often experience aging, deformation, or damage to their sealing structures due to factors such as media erosion, temperature fluctuations, and mechanical wear. This can lead to seal failure and leakage. This not only wastes resources and pollutes the environment, but can also pose serious safety risks.

[0003] Existing valve sealing structures mostly use a static sealing design, which relies on fixed sealing materials (such as rubber gaskets or metal sealing rings) to achieve the seal between the gate and the valve seat. Although this design is simple in structure and low in cost, it has many shortcomings in actual application. First, the static sealing structure cannot be adaptively adjusted according to the wear state of the seal. When the seal is slightly worn, it is difficult to maintain a good sealing effect. Second, traditional valves lack real-time monitoring methods for the sealing status. Usually, manual inspections are needed to detect sealing failure problems, resulting in long maintenance cycles and delayed responses. Finally, the sealing components of existing valves are mostly integral structures. Once some components are aged or damaged, they need to be replaced as a whole, which results in high maintenance costs.

[0004] Furthermore, the sealing performance of traditional valves can be further degraded under certain high-temperature, high-pressure, or highly corrosive operating conditions. For example, high temperatures can cause the sealing material to soften or even carbonize, while high pressures can cause localized stress concentrations on the sealing surface, exacerbating wear. Therefore, an intelligent control valve with an adaptive sealing structure is needed to address these issues. Summary of the Invention

[0005] The purpose of the present invention is to provide an intelligent control valve with an adaptive sealing structure, which has the advantages of automatic compensation for seal wear, real-time monitoring of sealing status and intelligent regulation, solving the problems of poor sealing performance, high maintenance costs and lack of real-time monitoring of traditional valves.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: an intelligent control valve with an adaptive sealing structure, comprising a valve body, an adaptive sealing mechanism disposed within the valve body, and a control box disposed on the valve body that cooperates with the adaptive sealing mechanism;

[0007] The valve body includes a valve body, a valve stem and a gate plate. A valve seat groove is provided in the valve body and slides with the gate plate. The adaptive sealing mechanism includes a sealing bottom ring, a sealing side ring, a piston ring and a sealing gasket. The adaptive sealing mechanism is installed on the left and right sides of the valve seat groove. The control box includes a box body, a controller, a pressure regulating pipe and a motor. The control box is installed at the lower end of the valve body.

[0008] As a preferred intelligent control valve with an adaptive sealing structure of the present invention, the sealing bottom ring, sealing side ring and piston ring are installed on the side end surface of the valve body to form a hydraulic chamber therewith, the piston ring is installed in the hydraulic chamber and is slidingly connected to the sealing side ring, the sealing gasket is detachably installed on the piston ring, and the side wall of the valve body is provided with a hydraulic flow channel that passes through the hydraulic chamber.

[0009] As a preferred intelligent control valve with an adaptive sealing structure of the present invention, the outer end face of the sealing side ring is provided with a limiting flange for limiting the stroke of the piston ring, the end of the sealing side ring away from the limiting flange is provided with a mounting flange, the outer end face of the mounting flange is provided with an external thread, and the inner end face of the valve body is provided with an internal thread matching the mounting flange.

[0010] As a preferred intelligent control valve with an adaptive sealing structure of the present invention, the front end face of the piston ring is provided with an annular clamping strip, the back side of the sealing gasket is provided with an annular clamping groove cooperating with the annular clamping strip, and the upper and lower sides of the annular clamping strip are provided with annular flanges inclined toward the piston ring.

[0011] As a preferred intelligent control valve with an adaptive sealing structure of the present invention, pressure sensors are evenly arranged on the front end surface of the annular clip, and the pressure sensors are arrayed around the central circumference of the annular clip, and positioning grooves cooperating with the pressure sensors are arranged in the annular slot.

[0012] As a preferred intelligent control valve with an adaptive sealing structure of the present invention, the pressure regulating pipe is installed in the box body, the top of the pressure regulating pipe is provided with an oil pipeline that passes through the hydraulic flow channel, and a slidingly connected piston head is provided in the pressure regulating pipe.

[0013] As a preferred intelligent control valve with an adaptive sealing structure of the present invention, the motor is fixedly installed on the left and right sides of the pressure regulating tube, a screw rod is provided on the output shaft of the motor, a sleeve slidingly matched with the screw rod is fixedly installed on the side of the piston head, a screw hole matching with the screw rod is provided on the side end face of the sleeve, and a partition is provided in the center of the pressure regulating tube.

[0014] As a preferred embodiment of the intelligent control valve with an adaptive sealing structure of the present invention, the front end surface of the box body is provided with an alarm light and a buzzer.

[0015] As a preferred embodiment of the intelligent control valve with an adaptive sealing structure of the present invention, a controller is provided in the box body, and a wireless module is provided on the controller.

[0016] As a preferred embodiment of the intelligent control valve with an adaptive sealing structure of the present invention, a mounting groove is provided at the bottom of the valve seat groove, and a temperature sensor is provided in the mounting groove.

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

[0018] 1. The present invention adopts the linkage design of the hydraulic chamber, piston ring and pressure-regulating tube, and utilizes the hydraulic flow channel to dynamically adjust the pressure of the sealing gasket on the gate plate, effectively solving the leakage problem of traditional valves caused by seal wear. When the sealing gasket is aged or worn, the control system can increase the pressure in the hydraulic chamber, push the piston ring to drive the sealing gasket to fit tightly against the gate plate, achieve pressure compensation, and thus maintain the sealing effect. In addition, the independent pressure-regulating areas separated by the partitions are combined with the precise control of the motor-driven screw rod to separately adjust the differential wear between the upstream and downstream surfaces of the gate plate, avoid local overpressure or underpressure, and significantly extend the service life of the sealing component.

[0019] 2. The present invention can monitor the pressure distribution of the contact surface between the sealing gasket and the gate plate in real time through multiple groups of pressure sensors integrated on the annular clamping strip, and accurately judge the wear status and sealing uniformity of the sealing gasket by combining with the controller to analyze the data. The setting of the temperature sensor further optimizes the pressure regulation strategy under high temperature conditions. When it is detected that the sealing gasket life is insufficient or the pressure is abnormal, the controller transmits data through the wireless module and triggers the alarm light and buzzer to realize fault warning. During the opening and closing process of the valve, the system automatically adjusts the sealing pressure to reduce wear, forming an intelligent closed-loop control of "closed pressurization to ensure sealing, open decompression to extend life", which solves the problem of traditional valves relying on manual inspections and delayed maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 A top view of the present invention;

[0022] Figure 3 For the present invention Figure 2 Middle AA section;

[0023] Figure 4 For the present invention Figure 3 Enlarged view of point B in the middle;

[0024] Figure 5 For the present invention Figure 3 Enlarged view of point C in the middle;

[0025] Figure 6 A side view of the piston ring of the present invention;

[0026] Figure 7 For the present invention Figure 4 Enlarged view of point D in the middle;

[0027] Figure 8 This is a schematic diagram of the control box structure of the present invention;

[0028] Figure 9 It is a front cross-sectional view of the control box of the present invention;

[0029] Figure 10 This is a front cross-sectional view of the valve main structure of the present invention;

[0030] Figure 11 Schematic diagram of the circuit of the present invention.

[0031] Figure: 1. Valve body; 101. Valve body; 1011. Valve seat groove; 1012. Hydraulic chamber; 1013. Hydraulic flow channel; 1014. Mounting groove; 1015. Temperature sensor; 102. Valve stem; 103. Gate; 2. Adaptive sealing mechanism; 201. Sealing bottom ring; 202. Sealing side ring; 2021. Limiting flange; 2022. Mounting flange; 203. Piston ring; 2031. Annular clip; 2033. Annular Flange; 2032, pressure sensor; 204, sealing gasket; 2041, positioning groove; 2042, annular groove; 3, control box; 301, box body; 3011, alarm light; 3012, buzzer; 302, controller; 303, pressure regulating tube; 3031, partition; 3032, oil pipeline; 304, piston head; 3041, sleeve; 3042, screw hole; 305, motor; 306, screw rod; 307, wireless module. DETAILED DESCRIPTION

[0032] Example 1

[0033] See also Figures 1-11 , an intelligent control valve with an adaptive sealing structure, comprising a valve body 1, an adaptive sealing mechanism 2 is provided in the valve body 1, and a control box 3 cooperating with the adaptive sealing mechanism 2 is provided on the valve body 1;

[0034] The valve body 1 includes a valve body 101, a valve stem 102 and a gate plate 103. A valve seat groove 1011 is provided in the valve body 101, which slides with the gate plate 103. The adaptive sealing mechanism 2 includes a sealing bottom ring 201, a sealing side ring 202, a piston ring 203 and a sealing gasket 204. The adaptive sealing mechanism 2 is installed on the left and right sides of the valve seat groove 1011. The control box 3 includes a box body 301, a controller 302, a pressure regulating pipe 303 and a motor 305. The control box 3 is installed at the lower end of the valve body 1.

[0035] Furthermore, the sealing bottom ring 201, the sealing side ring 202 and the piston ring 203 are installed on the side end surface of the valve body 101 to form a hydraulic chamber 1012 therewith. The piston ring 203 is installed in the hydraulic chamber 1012 and is slidingly connected to the sealing side ring 202. The sealing gasket 204 is detachably installed on the piston ring 203. The side wall of the valve body 101 is provided with a hydraulic channel 1013 that passes through the hydraulic chamber 1012.

[0036] The pressure in the hydraulic chamber 1012 is adjusted through the hydraulic channel 1013, thereby changing the position of the piston ring 203. When the sealing gasket 204 is worn and aged, the hydraulic chamber 1012 is pressurized, so that the piston ring 203 drives the sealing gasket 204 to squeeze the gate plate 103, thereby improving the sealing effect and avoiding valve leakage.

[0037] Furthermore, the outer end face of the sealing side ring 202 is provided with a limiting flange 2021 for limiting the stroke of the piston ring 203, and the end of the sealing side ring 202 away from the limiting flange 2021 is provided with a mounting flange 2022, the outer end face of the mounting flange 2022 is provided with an external thread, and the inner end face of the valve body 1 is provided with an internal thread matching the mounting flange 2022.

[0038] The threaded sealing side ring 202 fixes the sealing bottom ring 201 and limits the stroke of the piston ring 203. The combined adaptive sealing mechanism 2 is easy to disassemble and assemble, reducing the maintenance cost of old parts.

[0039] Furthermore, the front end face of the piston ring 203 is provided with an annular clamping strip 2031 , the back face of the sealing gasket 204 is provided with an annular clamping groove 2042 that cooperates with the annular clamping strip 2031 , and the upper and lower sides of the annular clamping strip 2031 are provided with annular flanges 2033 inclined toward the piston ring 203 .

[0040] The snap-fit structure of the sealing gasket 204 facilitates replacement of the worn sealing gasket 204 . An oblique annular flange 2033 is provided on the side of the annular clip 2031 , so that the sealing gasket 204 can be easily mounted on the annular clip 2031 and is not easily slipped off the annular clip 2031 .

[0041] Furthermore, pressure sensors 2032 are evenly provided on the front end surface of the annular clamping strip 2031 . The pressure sensors 2032 are arrayed around the central circumference of the annular clamping strip 2031 . Positioning grooves 2041 cooperating with the pressure sensors 2032 are provided in the annular clamping groove 2042 .

[0042] The pressure on the contact surface between the gate plate 103 and the sealing gasket 204 is detected by the pressure sensor 2032 to determine whether the sealing gasket 204 is pressed tightly. The design of multiple groups of circular array pressure sensors 2032 allows the controller 302 to determine the wear status of the sealing gasket 204 based on the pressure value of the pressure sensor 2032, thereby prompting timely replacement.

[0043] Furthermore, the pressure regulating tube 303 is installed in the box body 301 , and an oil delivery pipe 3032 that is connected to the hydraulic channel 1013 is provided on the top of the pressure regulating tube 303 , and an elliptical piston head 304 that is slidably connected is provided in the pressure regulating tube 303 .

[0044] By pushing the piston head 304 , the hydraulic oil in the pressure regulating pipe 303 is pushed from the oil delivery pipe 3032 into the hydraulic chamber 1012 , and the position of the piston ring 203 is adjusted, thereby controlling the pressure of the sealing gasket 204 on the gate plate 103 .

[0045] Furthermore, the motor 305 is fixedly installed on the left and right sides of the pressure regulating tube 303, a screw rod 306 is provided on the output shaft of the motor 305, a sleeve 3041 that slides with the screw rod 306 is fixedly installed on the side of the piston head 304, and a screw hole 3042 that cooperates with the screw rod 306 is provided on the side end face of the sleeve 3041, and a partition 3031 is provided in the center of the pressure regulating tube 303.

[0046] The pressure regulating tube 303 is divided into two pressure regulating areas by the partition 3031, so that the piston rings 203 on the left and right sides of the gate plate 103 can be adjusted separately. Since the degree of wear on the upstream surface and the downstream surface is different, the two sets of sealing gaskets 204 can be adjusted more accurately. The motor 305 drives the screw rod 306 to rotate, thereby driving the piston cylinder to move left and right to regulate the pressure of the hydraulic chamber 1012.

[0047] Furthermore, an alarm light 3011 and a buzzer 3012 are provided on the front end surface of the box body 301 .

[0048] The controller 302 predicts the service life of the gasket 204 by analyzing the data of the pressure sensor 2032. When the service life of the gasket 204 is insufficient, the alarm and buzzer 3012 are activated to remind the user to repair and maintain the valve in time.

[0049] Furthermore, a controller 302 is provided in the box 301 , and a wireless module 307 is provided on the controller 302 .

[0050] The controller 302 receives data from the pressure sensor 2032 and the temperature sensor 1015 for analysis, thereby regulating the start and stop of the motor 305 to adjust the pressure of the sealing gasket 204 on the gate plate 103. When the valve is open, the pressure of the sealing gasket 204 on the gate plate 103 is reduced, reducing the wear of the sealing gasket 204. When the valve is closed, the pressure of the sealing gasket 204 on the gate plate 103 is increased to improve the sealing effect. When the life of the sealing gasket 204 is insufficient, the alarm and buzzer 3012 are activated, and the controller 302 transmits the data back to the system through the wireless module 307 for storage.

[0051] Furthermore, a mounting groove 1014 is provided at the bottom of the valve seat groove 1011 , and a temperature sensor 1015 is provided in the mounting groove 1014 .

[0052] The fluid temperature is recorded by the temperature sensor 1015 , so as to appropriately adjust the pressure of the sealing gasket 204 and improve the sealing effect under high temperature conditions. The temperature sensor 1015 is set in the installation groove 1014 to avoid the gate 103 pressing the ring temperature sensor 1015 .

[0053] When the valve is in use, the controller 302 in the control box 3 first receives data from the pressure sensor 2032 and the temperature sensor 1015. When the valve is opened, the controller 302 regulates the motor 305 to drive the screw rod 306 to rotate, and the screw rod 306 drives the piston cylinder to move, thereby reducing the hydraulic oil in the pressure regulating pipe 303 entering the hydraulic chamber 1012, reducing the pressure of the sealing gasket 204 driven by the piston ring 203 on the gate 103, and reducing the wear of the sealing gasket 204; when the valve is closed, the motor 305 drives the screw rod 306 to rotate in the opposite direction, increasing the hydraulic oil entering the hydraulic chamber 1012, causing the piston ring 203 to drive the sealing gasket 204 to squeeze the gate 103, thereby improving the sealing effect. During the operation of the valve, the pressure sensor 2032 detects the pressure on the contact surface between the gate 103 and the sealing gasket 204 in real time. The multiple groups of circumferential array pressure sensors 2032 transmit data to the controller 302, and the controller 302 judges whether the sealing gasket 204 is pressed and the wear status based on this. If the sealing gasket 204 In case of wear and aging, the hydraulic oil can be pushed from the oil pipe 3032 into the hydraulic chamber 1012 through the movement of the piston head 304 in the pressure regulating pipe 303, thereby increasing the pressure in the hydraulic chamber 1012 and causing the piston ring 203 to drive the sealing gasket 204 to further squeeze the gate plate 103 to maintain the sealing effect. At the same time, the temperature sensor 1015 records the fluid temperature and provides a reference for the controller 302 to adjust the pressure of the sealing gasket 204, thereby ensuring a good sealing effect even under high temperature conditions. In addition, when the controller 302 analyzes the data from the pressure sensor 2032 and predicts that the life of the sealing gasket 204 is insufficient, it activates the alarm light 3011 and buzzer 3012 on the front face of the box body 301 to remind the user, and the user can promptly inspect and maintain the valve according to the prompt. For the worn sealing gasket 204, because it adopts a clip-on structure, it can be easily removed and replaced from the annular clip 2031 on the front face of the piston ring 203, and the sealing side ring 202 is connected by a thread, making the adaptive sealing mechanism 2 easy to disassemble and assemble, reducing maintenance costs.

[0054] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An intelligent control valve with an adaptive sealing structure, comprising a valve body (1), characterized in that: An adaptive sealing mechanism (2) is provided in the valve body (1), and a control box (3) cooperating with the adaptive sealing mechanism (2) is provided on the valve body (1); The valve body (1) includes a valve body (101), a valve stem (102) and a gate plate (103); a valve seat groove (1011) is provided in the valve body (101) and is slidably matched with the gate plate (103); the adaptive sealing mechanism (2) includes a sealing bottom ring (201), a sealing side ring (202), a piston ring (203) and a sealing gasket (204); the adaptive sealing mechanism (2) is installed on the left and right sides of the valve seat groove (1011); the control box (3) includes a box body (301), a controller (302), a pressure regulating pipe (303) and a motor (305); the control box (3) is installed at the lower end of the valve body (1).

2. The intelligent control valve with an adaptive sealing structure according to claim 1, characterized in that: The sealing bottom ring (201), the sealing side ring (202) and the piston ring (203) are installed on the side end surface of the valve body (101) to form a hydraulic chamber (1012) therewith. The piston ring (203) is installed in the hydraulic chamber (1012) and is slidably connected to the sealing side ring (202). The sealing gasket (204) is detachably installed on the piston ring (203). The side wall of the valve body (101) is provided with a hydraulic flow channel (1013) that is in communication with the hydraulic chamber (1012).

3. The intelligent control valve with an adaptive sealing structure according to claim 1, characterized in that: The outer end surface of the sealing side ring (202) is provided with a limiting flange (2021) for limiting the stroke of the piston ring (203); the end of the sealing side ring (202) away from the limiting flange (2021) is provided with a mounting flange (2022); the outer end surface of the mounting flange (2022) is provided with an external thread; and the inner end surface of the valve body (1) is provided with an internal thread that cooperates with the mounting flange (2022).

4. The intelligent control valve with an adaptive sealing structure according to claim 1, characterized in that: The front end face of the piston ring (203) is provided with an annular clamping strip (2031), the back face of the sealing gasket (204) is provided with an annular clamping groove (2042) that cooperates with the annular clamping strip (2031), and the upper and lower sides of the annular clamping strip (2031) are provided with annular flanges (2033) that are inclined toward the piston ring (203).

5. The intelligent control valve with an adaptive sealing structure according to claim 4, characterized in that: Pressure sensors (2032) are evenly arranged on the front end surface of the annular clamping strip (2031), and the pressure sensors (2032) are arranged in an array around the central circumference of the annular clamping strip (2031). Positioning grooves (2041) that cooperate with the pressure sensors (2032) are arranged in the annular clamping groove (2042).

6. The intelligent control valve with an adaptive sealing structure according to claim 1, characterized in that: The pressure regulating pipe (303) is installed in the box (301), and an oil delivery pipe (3032) that is connected to the hydraulic channel (1013) is provided on the top of the pressure regulating pipe (303). A piston head (304) that is slidably connected is provided in the pressure regulating pipe (303).

7. The intelligent control valve with an adaptive sealing structure according to claim 6, characterized in that: The motor (305) is fixedly mounted on the left and right sides of the pressure regulating tube (303); a screw rod (306) is provided on the output shaft of the motor (305); a sliding sleeve (3041) that slidably cooperates with the screw rod (306) is fixedly mounted on the side of the piston head (304); a screw hole (3042) that cooperates with the screw rod (306) is provided on the side end face of the sliding sleeve (3041); and a partition (3031) is provided in the center of the pressure regulating tube (303).

8. The intelligent control valve with an adaptive sealing structure according to claim 1, characterized in that: The front end surface of the box body (301) is provided with an alarm light (3011) and a buzzer (3012).

9. The intelligent control valve with an adaptive sealing structure according to claim 1, characterized in that: A controller (302) is provided in the box (301), and a wireless module (307) is provided on the controller (302).

10. The intelligent control valve with an adaptive sealing structure according to claim 1, characterized in that: A mounting groove (1014) is provided at the bottom of the valve seat groove (1011), and a temperature sensor (1015) is provided in the mounting groove (1014).

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