Leak-proof equipment regulating valve

Abstract

The utility model belongs to the technical field of equipment regulating valves, and discloses a leakproof equipment regulating valve which comprises a valve body, a first connecting flange is fixedly connected to the side surface of one end of the valve body, and a pressure sealing mechanism is arranged on the outer surfaces of the opposite sides of the first connecting flange and a second connecting flange. Pressure is continuously applied to the sealing rubber ring in the mode that the first connecting flange and the second connecting flange rotate relatively, and therefore the possibility that fluid leaks from the connecting position of the first connecting flange and the second connecting flange is reduced. According to the leakproof equipment regulating valve, the sealing grooves are formed in the outer side surfaces of the opposite ends of the first connecting flange and the second connecting flange, the sealing rubber rings are arranged in the sealing grooves, a basic sealing guarantee is provided for the joint, and particularly, the sealing rubber rings with the I-shaped sections are adopted, so that compared with a common sealing gasket, the leakproof equipment regulating valve has the advantages that the sealing effect is good; the sealing contact area is increased, and the sealing reliability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of equipment regulating valve, concretely is a kind of anti-leakage equipment regulating valve. BACKGROUND

[0002] In industrial production process, equipment regulating valve plays a vital role, it is widely used in various fluid delivery systems, such as petroleum chemical industry, water supply and drainage, electric power and so on, for controlling the flow, pressure and flow direction of fluid, to ensure the stable operation of production process;

[0003] However, the existing equipment regulating valve has some obvious deficiencies in actual use, among which, the most prominent problem is the leakage hidden danger of connecting portion, at present, the connecting mode of most regulating valves mainly adopts flange connection, two flanges are fixed together by bolt, and sealing gasket is placed in the middle, but in the long-term use process, sealing performance is reduced due to the influence of factors such as fluid pressure fluctuation, temperature change and mechanical vibration, so that fluid leaks from the flange connecting portion, this kind of leakage not only causes resource waste, increases production cost, but also can cause environmental pollution, even causes safety accident, brings serious negative influence to production;

[0004] In addition, for the monitoring of equipment internal pressure, the traditional regulating valve also lacks effective real-time monitoring means, once equipment leaks or fails and causes abnormal pressure, it is often difficult to find and handle in time, which greatly affects the normal operation of equipment and production efficiency, therefore, developing a kind of equipment regulating valve with anti-leakage function and capable of monitoring pressure in real time has important practical significance and application value, can effectively solve the problems existing in prior art, meet the requirements of safety, stability and high efficiency of industrial production. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of equipment regulating valve of anti-leakage to solve the problems of easy leakage of the connecting portion of the existing equipment regulating valve and lack of effective internal pressure real-time monitoring means in the above background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of equipment regulating valve of anti-leakage, including valve body, the one end side surface of the valve body is fixedly connected with first connecting flange, and the one end of first connecting flange is fixedly connected with second connecting flange by bolt, the outer side surface of the one end of first connecting flange and second connecting flange is equipped with sealing groove, and sealing rubber ring is arranged in the inside of sealing groove, pressure sealing mechanism is arranged on the outer surface of the one side of first connecting flange and second connecting flange, and the sealing rubber ring is continuously applied with pressure by the relative rotation of first connecting flange and second connecting flange, to reduce the possibility of fluid leakage from the connecting portion of first connecting flange and second connecting flange.

[0007] The pressure sealing mechanism comprises a clearance groove, which is arranged on the outer surface of the first connecting flange, and the inner surface of the clearance groove is fixedly provided with a guide block, and the outer surface of the second connecting flange is fixedly provided with a locking block;

[0008] The end of the first connecting flange connected with the valve body is provided with a monitoring mechanism, which can continuously monitor the internal pressure of the first connecting flange when the valve body is locked, so as to timely alarm when the equipment pressure exceeds the predetermined range due to leakage or failure.

[0009] The monitoring mechanism comprises a detection cylinder, which is fixedly arranged on the outer surface of the end of the first connecting flange connected with the valve body, and the lower end of the detection cylinder penetrates the inner surface of the first connecting flange, the inside of the detection cylinder is provided with a piston plate, and the upper end of the piston plate is fixedly connected with a contact plate, the upper end of the detection cylinder is fixedly connected with a mounting frame, and the upper end of the mounting frame is installed with an adjusting rod, the lower part of the adjusting rod is provided with a resisting plate, and the outer surface of the resisting plate towards the contact plate is fixedly installed with a pressure switch, and the pressure switches on both sides are respectively located on the upper and lower surfaces of the resisting plate, the upper end of the adjusting rod is fixedly installed with a warning light, the upper end of the resisting plate penetrates the upper surface of the mounting frame, and the upper end of the resisting plate is fixedly connected with a reset plate, and the resisting plate and the reset plate are fixedly connected with a limiting plate.

[0010] Preferably, the cross section of the sealing rubber ring is designed as an I-shaped, the guide block and the locking block are designed as right-angled trapezoids, the guide block and the locking block are oppositely arranged, and the inclined surfaces of the guide block and the locking block are mutually adhered, and the guide block and the locking block are one-to-one arranged.

[0011] By adopting the above technical scheme, the I-shaped sealing rubber ring increases the sealing contact area at the flange connection, and compared with the ordinary sealing gasket, the sealing reliability is significantly improved, the guide block and the locking block are right-angled trapezoids and are one-to-one arranged, and the inclined surfaces of the guide block and the locking block are mutually adhered, when the first connecting flange and the second connecting flange rotate relative to each other, the guide block and the locking block are extruded, and then continuously apply pressure to the sealing rubber ring, which can effectively prevent the sealing rubber ring from aging, deforming and causing sealing performance to decrease due to factors such as fluid pressure fluctuation, temperature change and mechanical vibration, and greatly reduces the possibility of fluid leakage from the connection between the first connecting flange and the second connecting flange.

[0012] Preferably, the piston plate and the detection cylinder are in sliding friction connection, and a spring is connected between the inner surfaces of the piston plate and the detection cylinder.

[0013] Adopting the technical scheme, the sliding friction connection mode of the piston plate and the detection cylinder can make the piston plate move flexibly in the detection cylinder to accurately perceive the change of the internal pressure of the first connecting flange, and the spring connected between the piston plate and the inner surface of the detection cylinder can provide buffer for the movement of the piston plate to avoid impact damage of the piston plate caused by instantaneous change of pressure, and on the other hand, the spring can help the piston plate reset quickly after the pressure returns to normal, thereby ensuring that the monitoring mechanism can continuously and stably monitor the pressure change.

[0014] Preferably, the mounting frame is in threaded connection with the adjusting rod, and the lower end of the adjusting rod is in abutment with the outer surface of the limiting plate.

[0015] Adopting the technical scheme, the threaded connection between the mounting frame and the adjusting rod can flexibly adjust the height of the adjusting rod according to the actual equipment operation requirement, and then change the position of the abutting plate to realize accurate setting of the pressure monitoring threshold.

[0016] Preferably, the outer surface of the pressure switch is in abutment with the contact plate, and the pressure switch is internally provided with a Bluetooth output module, and the inside of the warning lamp is provided with a Bluetooth receiving module.

[0017] Adopting the technical scheme, the pressure switch is in abutment with the contact plate, so that when the piston plate drives the contact plate to move, the pressure switch can be triggered in time, the Bluetooth output module in the pressure switch and the Bluetooth receiving module in the warning lamp cooperate with each other, when the pressure is abnormal, the pressure switch transmits the signal to the warning lamp through Bluetooth in a fast mode, so that the warning lamp is lighted to timely alarm the staff, and this wireless transmission mode simplifies the line connection and improves the stability and timeliness of signal transmission.

[0018] Preferably, a spring is connected between the reset plate and the mounting frame, and the abutting plate is in sliding connection with the mounting frame.

[0019] Adopting the technical scheme, the sliding connection mode of the abutting plate and the mounting frame ensures the stability of the abutting plate during the up-and-down movement, avoids shaking or deviation of the abutting plate, and thereby ensures the reliability of the pressure monitoring and alarm function.

[0020] Compared with the prior art, the device adjusting valve with the anti-leakage function has the beneficial effects that:

[0021] 1. The sealing groove is arranged on the outer surface of the opposite end of the first connecting flange and the second connecting flange, and the sealing rubber ring is arranged in the sealing groove, thereby providing basic sealing guarantee for the connection, especially the sealing rubber ring with the I-shaped cross section, compared with the ordinary sealing gasket, the sealing contact area is increased, and the sealing reliability is improved, meanwhile, the pressure sealing mechanism is designed ingeniously, the guide block in the giving way groove cooperates with the locking block, when the first connecting flange and the second connecting flange rotate relative to each other, the inclined surfaces of the guide block and the locking block are matched with each other, the sealing rubber ring can be continuously applied with pressure, even under the complex working conditions such as fluid pressure fluctuation, temperature change and mechanical vibration, the sealing performance caused by aging and deformation of the sealing rubber ring can be effectively prevented, the possibility of fluid leakage from the connection is greatly reduced, resource waste, environmental pollution and safety accidents are avoided, and the production cost is effectively reduced;

[0022] 2. The monitoring mechanism can accurately perceive the pressure change in the valve body through the cooperation of the detection cylinder, the piston plate, the contact plate and the like, when the valve body is locked, the internal pressure of the first connecting flange can be continuously monitored, the threshold value of the pressure monitoring can be flexibly adjusted according to actual needs through the threaded connection between the adjusting rod and the mounting frame, once the equipment pressure exceeds the predetermined range due to leakage or failure, the piston plate moves under the action of pressure, drives the contact plate to touch the pressure switch, the Bluetooth output module in the pressure switch sends a signal to the Bluetooth receiving module in the warning lamp, so that the warning lamp is lighted, timely reminding the staff to handle, effectively avoiding the damage of equipment and the interruption of production caused by the fact that the pressure is not found in time, and the stability and production efficiency of equipment operation are greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a whole three-dimensional structure schematic view of the utility model;

[0024] Figure 2 It is a three-dimensional structure schematic view of the first connecting flange, the second connecting flange and the detection cylinder connection of the utility model;

[0025] Figure 3 It is a three-dimensional structure schematic view of the first connecting flange, the detection cylinder and the piston plate connection section view of the utility model;

[0026] Figure 4 It is a three-dimensional structure schematic view of the first connecting flange, the second connecting flange and the sealing rubber ring connection section view of the utility model;

[0027] Figure 5 It is a three-dimensional structure schematic view of the giving way groove, the guide block and the locking block connection section view of the utility model;

[0028] Figure 6 It is a three-dimensional structure schematic view of the second connecting flange, the sealing groove and the locking block connection of the utility model;

[0029] Figure 7 It is the three-dimensional structure schematic view of the first connecting flange, the giving-way slot and the guide block connection of the utility model.

[0030] In the drawing: 1, valve body; 2, first connecting flange; 3, second connecting flange; 4, sealing groove; 5, sealing rubber ring; 6, giving-way slot; 7, guide block; 8, locking block; 9, detection cylinder; 10, piston plate; 11, contact plate; 12, mounting frame; 13, adjusting rod; 14, abutting plate; 15, pressure switch; 16, warning light; 17, reset plate; 18, limiting plate. DETAILED DESCRIPTION

[0031] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0032] Please refer to Figures 1-7 The utility model provides a kind of technical scheme: a leak-proof equipment regulating valve.

[0033] Embodiment one

[0034] Disclosed in this embodiment: valve body 1, one end side surface of valve body 1 is fixedly connected with first connecting flange 2, and one end of first connecting flange 2 is fixedly connected with second connecting flange 3 by bolt, the outer side surface of the end of first connecting flange 2 and second connecting flange 3 is provided with sealing groove 4, and sealing rubber ring 5 is arranged in sealing groove 4, the outer surface of the side of first connecting flange 2 and second connecting flange 3 is provided with pressure sealing mechanism, the pressure of sealing rubber ring 5 is continuously applied by the mode of relative rotation of first connecting flange 2 and second connecting flange 3, to reduce the possibility of fluid leakage from the connection of first connecting flange 2 and second connecting flange 3;

[0035] Pressure sealing mechanism includes: giving-way slot 6, giving-way slot 6 is opened in the outer side surface of first connecting flange 2, and the inner side surface of giving-way slot 6 is fixedly provided with guide block 7, the outer side surface of second connecting flange 3 is fixedly provided with locking block 8;

[0036] The section of sealing rubber ring 5 is designed as H-shaped, guide block 7 and locking block 8 are both designed as right trapezoidal, and guide block 7 and locking block 8 are oppositely arranged, and the inclined surface of guide block 7 and locking block 8 is mutually adhered, and guide block 7 and locking block 8 are one-to-one arranged;

[0037] When connected, the valve body 1 is connected through the first connecting flange 2 and the second connecting flange 3, the sealing rubber ring 5 in the sealing groove 4 is the basic sealing structure, the I-shaped section increases the sealing contact area, during installation, the second connecting flange 3 is inserted into the accommodation groove 6, then the first connecting flange 2 and the second connecting flange 3 are relatively rotated, at this time, the guide block 7 in the accommodation groove 6 interacts with the locking block 8 on the second connecting flange 3, since the guide block 7 and the locking block 8 are both right-angled trapezoids and the inclined surfaces are fitted, the relative rotation causes them to be extruded with each other, thereby continuously applying pressure to the sealing rubber ring 5, this design can effectively prevent the sealing rubber ring 5 from causing the sealing performance to decrease due to working conditions, and reduce the risk of leakage at the connection.

[0038] Embodiment two

[0039] This embodiment discloses that the end of the first connecting flange 2 connected with the valve body 1 is provided with a monitoring mechanism, through continuously monitoring the internal pressure of the first connecting flange 2 when the valve body 1 is locked, the purpose of timely alarming when the equipment pressure exceeds the predetermined range due to leakage or failure is achieved.

[0040] The monitoring mechanism comprises a detection cylinder 9, the detection cylinder 9 is fixedly arranged on the outer surface of the end of the first connecting flange 2 connected with the valve body 1, and the lower end of the detection cylinder 9 penetrates the inner surface of the first connecting flange 2, the inside of the detection cylinder 9 is provided with a piston plate 10, the upper end of the piston plate 10 is fixedly connected with a contact plate 11, the upper end of the detection cylinder 9 is fixedly connected with a mounting frame 12, the upper end of the mounting frame 12 is installed with an adjusting rod 13, the lower part of the adjusting rod 13 is provided with an abutting plate 14, the outer surface of the abutting plate 14 towards the contact plate 11 is fixedly installed with a pressure switch 15, and the pressure switches 15 on both sides are respectively located on the upper and lower surfaces of the abutting plate 14, the upper end of the adjusting rod 13 is fixedly installed with a warning light 16, the upper end of the abutting plate 14 penetrates the upper surface of the mounting frame 12, the upper end of the abutting plate 14 is fixedly connected with a reset plate 17, and the abutting plate 14 and the reset plate 17 are fixedly connected with a limiting plate 18 between them;

[0041] The piston plate 10 and the detection cylinder 9 are in sliding friction connection, and a spring is connected between the piston plate 10 and the inner surface of the detection cylinder 9;

[0042] The mounting frame 12 and the adjusting rod 13 are in screw connection, and the lower end of the adjusting rod 13 is fitted with the outer surface of the limiting plate 18;

[0043] The outer surface of the pressure switch 15 is fitted with the contact plate 11, and the inside of the pressure switch 15 is provided with a Bluetooth output module, and the inside of the warning light 16 is provided with a Bluetooth receiving module;

[0044] A spring is connected between the reset plate 17 and the mounting frame 12, and the abutting plate 14 and the mounting frame 12 are in sliding connection;

[0045] When the valve body 1 is closed, the monitoring mechanism starts to work, the internal pressure change of the first connecting flange 2 is transmitted to the detection cylinder 9, the piston plate 10 slides in the detection cylinder 9, the spring between the piston plate 10 and the detection cylinder 9 provides a certain buffer and reset force, the position of the contact plate 14 can be adjusted through the threaded connection of the adjusting rod 13 and the mounting frame 12, when the pressure exceeds the predetermined range, the piston plate 10 drives the contact plate 11 to move and touch the pressure switch 15, the Bluetooth output module in the pressure switch 15 sends a signal to the Bluetooth receiving module in the warning light 16, the warning light 16 is turned on to alarm, at the same time, the sliding connection between the contact plate 14 and the mounting frame 12, the spring between the reset plate 17 and the mounting frame 12 makes the limiting plate 18 always keep in contact with the lower end of the adjusting rod 13.

[0046] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A leak-proof device regulating valve, comprising a valve body (1), one end side surface of the valve body (1) is fixedly connected with a first connecting flange (2), and one end of the first connecting flange (2) is fixedly connected with a second connecting flange (3) through a bolt, characterized in that: The outer side surface of the opposite end of the first connecting flange (2) and the second connecting flange (3) is provided with a sealing groove (4), and the inside of the sealing groove (4) is provided with a sealing rubber ring (5), the outer surface of the opposite side of the first connecting flange (2) and the second connecting flange (3) is provided with a pressure sealing mechanism, the sealing rubber ring (5) is continuously pressed by the opposite rotation of the first connecting flange (2) and the second connecting flange (3), thereby reducing the possibility of fluid leakage from the connection between the first connecting flange (2) and the second connecting flange (3); The pressure sealing mechanism comprises: a let-out groove (6) provided on the outer surface of the first connecting flange (2), and a guide block (7) fixedly provided on the inner surface of the let-out groove (6), and a locking block (8) fixedly provided on the outer surface of the second connecting flange (3).

2. A leak-tight device regulating valve according to claim 1, characterized in that: The end of the first connecting flange (2) connected with the valve body (1) is provided with a monitoring mechanism, which continuously monitors the internal pressure of the first connecting flange (2) when the valve body (1) is locked, so as to timely alarm when the equipment pressure exceeds the predetermined range due to leakage or failure. The monitoring mechanism comprises: a detection cylinder (9) fixedly provided on the outer surface of the end of the first connecting flange (2) connected with the valve body (1), and the lower end of the detection cylinder (9) penetrates the inner surface of the first connecting flange (2), the inside of the detection cylinder (9) is provided with a piston plate (10), and the upper end of the piston plate (10) is fixedly connected with a contact plate (11), the upper end of the detection cylinder (9) is fixedly connected with a mounting frame (12), and the upper end of the mounting frame (12) is installed with an adjusting rod (13), the lower part of the adjusting rod (13) is provided with a resisting plate (14), and the outer surface of the resisting plate (14) towards the contact plate (11) is fixedly installed with a pressure switch (15), and the pressure switches (15) on both sides are respectively located on the upper and lower surfaces of the resisting plate (14), the upper end of the adjusting rod (13) is fixedly installed with a warning light (16), the upper end of the resisting plate (14) penetrates the upper surface of the mounting frame (12), and the upper end of the resisting plate (14) is fixedly connected with a reset plate (17), and the resisting plate (14) and the reset plate (17) are fixedly connected with a limiting plate (18).

3. A leak-tight device regulating valve according to claim 1, characterized in that: The cross section of the sealing rubber ring (5) is designed as an I-shaped, the guide block (7) and the locking block (8) are designed as right trapezoids, the guide block (7) and the locking block (8) are oppositely arranged, and the inclined surfaces of the guide block (7) and the locking block (8) are mutually fitted, and the guide block (7) and the locking block (8) are one-to-one arranged.

4. A leak-tight device regulating valve according to claim 2, characterized in that: The piston plate (10) and the detection cylinder (9) are connected by sliding friction, and the spring is connected between the inner surfaces of the piston plate (10) and the detection cylinder (9).

5. A leak-tight device regulating valve according to claim 2, characterized in that: The mounting frame (12) and the adjusting rod (13) are connected by screw threads, and the lower end of the adjusting rod (13) is fitted with the outer surface of the limiting plate (18).

6. A leak-tight device regulating valve according to claim 2, characterized in that: The outer surface of the pressure switch (15) is attached to the contact plate (11), and the pressure switch (15) is internally provided with a Bluetooth output module, and the inside of the warning light (16) is provided with a Bluetooth receiving module.

7. A leak-tight device regulating valve according to claim 2, characterized in that: The reset plate (17) is connected with the mounting frame (12) through a spring, and the abutting plate (14) is slidingly connected with the mounting frame (12).

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