Metal sealing high-temperature and high-pressure wear-resistant regulating valve

Abstract

The utility model relates to the field of regulating valves, in particular to a metal sealing high-temperature and high-pressure wear-resistant regulating valve. According to the metal sealing high-temperature and high-pressure wear-resisting adjusting valve, the sealing ring can be moved, abrasion to the sealing ring when the ball valve is rotated is reduced, and the service life of the sealing ring is prolonged. A metal sealing high-temperature high-pressure wear-resisting adjusting valve comprises an adjusting valve, flange plates, a ball valve, a worm gear and the like, the flange plates are connected to the left side and the right side of the adjusting valve, the ball valve is rotatably connected to the middle of the adjusting valve, and the worm gear is connected to the upper portion of the ball valve. According to the adjusting valve, the rotating frame rotates, so that the sealing ring on the sliding frame moves leftwards, the sealing ring does not make contact with the ball valve any more, water flow circulates in the adjusting valve, and the effects that the sealing ring can be moved, abrasion to the sealing ring when the ball valve is rotated is reduced, and the service life of the sealing ring is prolonged are achieved.

Description

Technical Field

[0001] The utility model relates to the field of regulating valves, in particular to a metal-sealed high-temperature and high-pressure wear-resistant regulating valve. Background Art

[0002] The regulating valve is used to adjust the strength and direction of water flow. It can control the amount and speed of water flow through the valve. There are many types of regulating valves, such as ball valves, valve valves, plug valves, valve valves and hydraulic valves. The existing metal-sealed high-temperature and high-pressure wear-resistant regulating valve directly installs the sealing ring in the regulating valve, and the position of the regulating ball valve is sealed by the sealing ring. Since the sealing ring is fixed, the ball valve will rub against the sealing ring when adjusting the ball valve, which is easy to cause wear to the sealing ring, thereby affecting the service life of the sealing ring and reducing the sealing performance of the sealing ring.

[0003] Therefore, it is necessary to design a metal-sealed high-temperature and high-pressure wear-resistant regulating valve that can move the sealing ring, reduce the wear of the sealing ring when the ball valve is rotated, and extend the service life of the sealing ring. Utility Model Content

[0004] In order to overcome the shortcomings of the existing metal-sealed high-temperature and high-pressure wear-resistant regulating valve, in which the sealing ring is fixed and the ball valve will rub against the sealing ring when adjusting the ball valve, which is easy to cause wear to the sealing ring, thereby affecting the service life of the sealing ring and reducing the sealing performance of the sealing ring. The utility model provides a metal-sealed high-temperature and high-pressure wear-resistant regulating valve which can move the sealing ring, reduce the wear of the sealing ring when the ball valve is rotated, and extend the service life of the sealing ring.

[0005] The technical solution is: a metal-sealed high-temperature, high-pressure, wear-resistant regulating valve, including a regulating valve, a flange, a ball valve, a worm gear, a worm and a sealing mechanism. Flanges are connected to the left and right sides of the regulating valve, the middle part of the regulating valve is rotatably connected to the ball valve, the upper part of the ball valve is connected to the worm gear, the upper part of the regulating valve is rotatably connected to the worm, the worm and the worm gear are meshed with each other, and a sealing mechanism is provided on the regulating valve.

[0006] As a further preferred solution, the ball valve is made of metal.

[0007] As a further preferred solution, a hand wheel is also included, and the front side of the worm is connected with the hand wheel.

[0008] As a further preferred embodiment, the sealing mechanism includes a connecting arm, a connecting rod, a rotating frame, a sliding frame and a sealing ring. The connecting arm is connected to the upper side of the ball valve, the left part of the connecting arm is rotatably connected to the connecting rod, the left part of the connecting rod is rotatably connected to the rotating frame, the rotating frame is rotatably connected to the regulating valve, the lower part of the rotating frame is slidably connected to the sliding frame, the right side of the sliding frame is connected to the sealing ring, and the sealing ring is in contact with the inner side of the regulating valve.

[0009] As a further preferred solution, the sealing ring is made of rubber.

[0010] As a further preferred scheme, a buffer mechanism is also included, which includes a connecting pipe, a special-shaped piston piece, a sliding rod and a spring. The lower left side of the regulating valve is connected to the connecting pipe, the sliding rod is connected to the connecting pipe through a damping sliding type, the upper side of the sliding rod is connected to the special-shaped piston piece, the special-shaped piston piece is in contact with the regulating valve, and a spring is connected between the sliding rod and the connecting pipe.

[0011] The utility model has the following advantages: 1. The utility model rotates the rotating frame to make the sealing ring on the sliding frame move to the left, so that the sealing ring no longer contacts the ball valve, allowing water to flow in the regulating valve, thereby achieving the effect of being able to move the sealing ring, reducing the wear of the sealing ring when rotating the ball valve, and extending the service life of the sealing ring.

[0012] 2. The utility model uses the impact of water flow to make the slide rod move up and down on the connecting pipe, driving the special-shaped piston plate to move up and down, and the spring recovers after being stretched. Under the action of the spring, the regulating valve can be buffered, the impact of water flow on the regulating valve can be reduced, and the regulating valve and connected equipment can be protected. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0014] Figure 2 It is a cross-sectional view of the utility model.

[0015] Figure 3 It is a three-dimensional structural schematic diagram of the sealing mechanism of the utility model.

[0016] Figure 4 It is a schematic diagram of the three-dimensional structure of the buffer mechanism of the utility model.

[0017] Figure 5 It is a cross-sectional view of the buffer mechanism of the utility model.

[0018] Names of the numbers in the figure: 1- regulating valve, 2- flange, 3- ball valve, 4- worm gear, 5- worm, 6- handwheel, 7- sealing mechanism, 71- connecting arm, 72- connecting rod, 73- rotating frame, 74- sliding frame, 75- sealing ring, 8- buffer mechanism, 81- connecting pipe, 82- special-shaped piston plate, 83- sliding rod, 84- spring. DETAILED DESCRIPTION

[0019] The technical solution is further described below in conjunction with specific embodiments. It should be noted that the words indicating directions such as up, down, left, and right mentioned in this article are only for the position of the structure shown in the corresponding drawings. The serial numbers of the parts in this article, such as first, second, etc., are only used to distinguish the objects described and do not have any order or technical meaning. The words such as connection and coupling in this application include direct and indirect connection (coupling) unless otherwise specified.

[0020] A metal-sealed high-temperature, high-pressure, wear-resistant regulating valve, such as Figure 1 and Figure 2 As shown, it includes a regulating valve 1, a flange 2, a ball valve 3, a worm gear 4, a worm 5, a handwheel 6 and a sealing mechanism 7. The flanges 2 are connected to the left and right sides of the regulating valve 1. The middle part of the regulating valve 1 is rotatably connected to the ball valve 3. The ball valve 3 is made of metal and has high mechanical strength and pressure resistance. The upper part of the ball valve 3 is connected to the worm gear 4. The upper part of the regulating valve 1 is rotatably connected to the worm 5. The worm 5 and the worm gear 4 are meshed with each other. The front side of the worm 5 is connected to the handwheel 6. The regulating valve 1 is provided with a movable sealing mechanism 7.

[0021] like Figure 1 and Figure 3 As shown, the sealing mechanism 7 includes a connecting arm 71, a connecting rod 72, a rotating frame 73, a sliding frame 74 and a sealing ring 75. The connecting arm 71 is connected to the upper side of the ball valve 3. The left part of the connecting arm 71 is rotatably connected to the connecting rod 72. The left part of the connecting rod 72 is rotatably connected to the rotating frame 73. The rotating frame 73 is rotatably connected to the regulating valve 1. The lower part of the rotating frame 73 is slidably connected to the sliding frame 74. The right side of the sliding frame 74 is connected to the sealing ring 75. The sealing ring 75 is made of rubber and contacts the inner side of the regulating valve 1.

[0022] like Figure 1 , Figure 2 and Figure 5 As shown, a buffer mechanism 8 is also included, which includes a connecting pipe 81, a special-shaped piston piece 82, a sliding rod 83 and a spring 84. The connecting pipe 81 is connected to the lower left side of the regulating valve 1, and the sliding rod 83 is connected to the connecting pipe 81 through a damping sliding type. The special-shaped piston piece 82 is connected to the upper side of the sliding rod 83. The special-shaped piston piece 82 is in contact with the regulating valve 1, and a spring 84 is connected between the sliding rod 83 and the connecting pipe 81.

[0023] When using the device, firstly, the regulating valve 1 is installed on the water pipe through the flange 2. When the regulating valve 1 needs to be opened, the hand wheel 6 can be turned to drive the worm 5 to rotate. The worm 5 and the worm wheel 4 mesh with each other to drive the ball valve 3 to rotate, so that the connecting arm 71 rotates to drive the connecting rod 72 to rotate, and then drives the rotating frame 73 to rotate, so that the sealing ring 75 on the sliding frame 74 moves to the left, so that the sealing ring 75 no longer contacts the ball valve 3, so that the water flows in the regulating valve 1, so that the sealing ring 75 can be moved, the wear of the sealing ring 75 when the ball valve 3 is rotated is reduced, and the service life of the sealing ring 75 is extended. When the ball valve 3 needs to be closed, the hand wheel 6 can be turned to the left. The hand wheel 6 is turned to rotate, which drives the worm 5 to rotate. The worm 5 and the worm wheel 4 mesh with each other, which drives the ball valve 3 to rotate, so that the connecting arm 71 rotates to drive the connecting rod 72 to rotate, and then drives the rotating frame 73 to rotate, so that the sealing ring 75 moves to the right, and then the sealing ring 75 contacts the ball valve 3 for sealing. When the ball valve 3 is closed, the impact of the water flow causes the slide bar 83 to move up and down on the connecting pipe 81, driving the special-shaped piston plate 82 to move up and down, and the spring 84 is stretched and then restored. Under the action of the spring 84, the regulating valve 1 is buffered, so that the regulating valve 1 can be buffered, the impact of the water flow on the regulating valve 1 is reduced, and the regulating valve 1 and the connected equipment are protected.

[0024] It should be understood that the above description is only for exemplary purposes and is not intended to limit the present invention. Those skilled in the art will understand that variations of the present invention will be included within the scope of the claims herein.

Claims

1. A metal-sealed high-temperature, high-pressure, wear-resistant regulating valve, characterized by: The invention comprises a regulating valve (1), a flange (2), a ball valve (3), a worm wheel (4), a worm (5) and a sealing mechanism (7). The left and right sides of the regulating valve (1) are connected to the flanges (2). The middle of the regulating valve (1) is rotatably connected to the ball valve (3). The upper part of the ball valve (3) is connected to the worm wheel (4). The upper part of the regulating valve (1) is rotatably connected to the worm wheel (5). The worm wheel (5) and the worm wheel (4) are meshed with each other. The regulating valve (1) is provided with a movable sealing mechanism (7).

2. The metal-sealed high-temperature and high-pressure wear-resistant regulating valve according to claim 1 is characterized in that: The ball valve (3) is made of metal.

3. The metal-sealed high-temperature and high-pressure wear-resistant regulating valve according to claim 2 is characterized in that: It also includes a hand wheel (6), and the front side of the worm (5) is connected with the hand wheel (6).

4. The metal-sealed high-temperature and high-pressure wear-resistant regulating valve according to claim 3 is characterized in that: The sealing mechanism (7) comprises a connecting arm (71), a connecting rod (72), a rotating frame (73), a sliding frame (74) and a sealing ring (75); the upper side of the ball valve (3) is connected to the connecting arm (71); the left side of the connecting arm (71) is rotatably connected to the connecting rod (72); the left side of the connecting rod (72) is rotatably connected to the rotating frame (73); the rotating frame (73) is rotatably connected to the regulating valve (1); the lower part of the rotating frame (73) is slidably connected to the sliding frame (74); the right side of the sliding frame (74) is connected to the sealing ring (75); and the sealing ring (75) contacts the inner side of the regulating valve (1).

5. The metal-sealed high-temperature and high-pressure wear-resistant regulating valve according to claim 4 is characterized in that: The sealing ring (75) is made of rubber.

6. The metal-sealed high-temperature and high-pressure wear-resistant regulating valve according to claim 5 is characterized in that: The invention also comprises a buffer mechanism (8), which comprises a connecting pipe (81), a special-shaped piston sheet (82), a sliding rod (83) and a spring (84). The lower left side of the regulating valve (1) is connected to the connecting pipe (81), the sliding rod (83) is connected to the connecting pipe (81) by a damping sliding manner, the upper side of the sliding rod (83) is connected to the special-shaped piston sheet (82), the special-shaped piston sheet (82) is in contact with the regulating valve (1), and the spring (84) is connected between the sliding rod (83) and the connecting pipe (81).

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