A bidirectional regulating dynamic balance control valve

Abstract

The utility model discloses a kind of two-way regulation dynamic balance control valve, including control ball valve body, the inside of control ball valve body is movably installed with ball valve core, and the inside of ball valve core is equipped with two-way passage, while the top of control ball valve body is installed with actuating mechanism, the one end of control ball valve body is fixedly provided with first connecting flange, and the other end of control ball valve body is fixedly provided with second connecting flange, while second connecting flange end and second pipeline are fixed by screwing, and first connecting flange end and first pipeline are fixed by screwing, first connecting flange and first pipeline are fixed by stable support mechanism. The two-way regulation dynamic balance control valve, tensioning fixed mode can effectively limit the swing of ball valve;Improve the service life of ball valve, while avoiding the loosening of ball valve and pipeline connection place;Make the fit of sealing surface worse, and then leakage occurs.

Description

Technical Field

[0001] This utility model relates to the field of control valves, specifically a bidirectional regulating dynamic balance control valve. Background Technology

[0002] The spherical control valve uses a valve core with symmetrical channels. Taking the spherical valve core as an example, it can rotate within the valve body. Regardless of whether the fluid flows in the forward or reverse direction, the rotation of the valve core changes the cross-sectional area of ​​the fluid channel, thereby achieving bidirectional flow regulation. This allows for dynamic balance adjustment of the fluid inside the pipeline according to actual production needs. The valve core is spherical in shape, and its surface is machined with bidirectional channels. When the valve core rotates to different positions, the degree of overlap between the channels and the valve body inlet and outlet varies, thus controlling the flow rate. It is suitable for applications requiring high flow control accuracy and where bidirectional fluid flow is frequent, such as small pipeline systems in some chemical experimental devices. During experiments, the fluid may flow in the forward or reverse direction to simulate different reaction conditions, and the spherical valve core control valve can well meet the bidirectional flow regulation requirements.

[0003] In actual use, the aforementioned control valve that can bidirectionally adjust the flow rate of the pipeline has an inlet pipe and an outlet pipe installed at both ends of the control valve through flanges. As the usage time increases, factors such as pipeline vibration, pipeline expansion and contraction caused by temperature changes, and insufficient tightening during installation can cause the ball valve to loosen at the connection with the pipeline, resulting in poor sealing and leakage. Utility Model Content

[0004] The purpose of this invention is to provide a bidirectional dynamic balance control valve to solve the defects mentioned in the background art.

[0005] To achieve the above objectives, a bidirectional regulating dynamic balance control valve is provided, comprising a control ball valve body, wherein a spherical valve core is movably installed inside the control ball valve body, and the spherical valve core has a bidirectional channel inside. An actuator is installed on the top of the control ball valve body. A first connecting flange is fixedly installed at one end of the control ball valve body, and a second connecting flange is fixedly installed at the other end of the control ball valve body. The end of the second connecting flange is screwed to a second pipeline, and the end of the first connecting flange is screwed to a first pipeline. The first connecting flange and the first pipeline are fixed together by a stabilizing support mechanism, and the second connecting flange and the second pipeline are also fixed together by a stabilizing support mechanism.

[0006] Preferably, a left flange is fixedly installed at one end of the first pipe, and a right flange is fixedly installed at the other end of the first pipe. At the same time, the first pipe is fixedly connected to the first connecting flange through the left flange at the end.

[0007] Preferably, the left flange and the first connecting flange are evenly fixedly connected by multiple sets of bolts, and the left flange and the first connecting flange are sealed by a sealing gasket.

[0008] Preferably, the stabilizing support mechanism includes a first fixing plate, a left tensioning seat, a sealing gasket, a tie rod, a second fixing plate, and a right tensioning seat, wherein the first fixing plate is fixedly disposed on the outer circumference of the first connecting flange, and the second fixing plate is fixedly disposed on the outer circumference of the right flange.

[0009] Preferably, both the first fixing plate and the second fixing plate are arranged in a ring shape, and six sets of left tensioning seats are evenly fixedly connected to the outer circumference of the first fixing plate, while six sets of right tensioning seats are evenly fixedly connected to the outer circumference of the second fixing plate.

[0010] Preferably, the six sets of right tension seats and the six sets of left tension seats are all fixedly connected by tie rods, and one end of the tie rod is fixedly provided with a force-bearing seat, while the other end of the tie rod passes through the right tension seat and is screwed and fixed with a nut; the six sets of right tension seats and the six sets of left tension seats are arranged opposite to each other.

[0011] Preferably, a spring is fixedly provided at the end of the nut, and a guide plate is fixedly provided at the end of the spring away from the nut.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model uses six sets of equidistant tie rods to fix the first connecting flange and the right flange, and the ends of the tie rods pass through the right tensioning seat and are screwed to the nut for fixation. This achieves the tensioning and strengthening of the flanges at both ends of the control valve with the inlet and outlet pipes, and the stable support mechanism forms a stable connection system. The tensioning and fixing method can effectively limit the shaking of the ball valve, improve the service life of the ball valve, and prevent the ball valve from loosening at the connection with the pipeline. This prevents the sealing surface from deteriorating and thus causing leakage. Attached Figure Description

[0013] Figure 1 This is a front view schematic diagram of the structure of this utility model;

[0014] Figure 2 for Figure 1 A bottom view;

[0015] Figure 3 Schematic diagram of the stabilizing support mechanism;

[0016] Figure 4 for Figure 3 Rear view;

[0017] Figure 5 for Figure 3 A sectional view.

[0018] The following are the labeling elements in the diagram: 1. Control ball valve body; 2. Actuator; 3. First connecting flange; 31. First pipe; 311. Left flange; 312. Right flange; 4. Second connecting flange; 41. Second pipe; 5. Stabilizing support mechanism; 50. First fixing plate; 51. Left tensioning seat; 52. Sealing gasket; 53. Force-bearing seat; 54. Tie rod; 55. Second fixing plate; 56. Right tensioning seat; 57. Nut; 571. Spring; 572. Guide plate. Detailed Implementation

[0019] Please see Figure 1-5 This utility model provides a bidirectional regulating dynamic balance control valve, including a control ball valve body 1. A spherical valve core is movably installed inside the control ball valve body 1, and the spherical valve core has a bidirectional channel inside. An actuator 2 is installed on the top of the control ball valve body 1. A first connecting flange 3 is fixedly installed at one end of the control ball valve body 1, and a second connecting flange 4 is fixedly installed at the other end of the control ball valve body 1. The end of the second connecting flange 4 is screwed to a second pipe 41, and the end of the first connecting flange 3 is screwed to a first pipe 31. The first connecting flange 3 and the first pipe 31 are fixed together by a stabilizing support mechanism 5, and the second connecting flange 4 and the second pipe 41 are fixed together by the stabilizing support mechanism 5.

[0020] Working principle: In actual use, the control ball valve body 1 is fixed to the first pipe 31 and the second pipe 41 by bolting through the first connecting flange 3 and the second connecting flange 4 at both ends. The medium can enter the second pipe 41 through the bidirectional channel of the valve core inside the control ball valve body 1 via the first pipe 31; at the same time, the medium can enter the first pipe 31 through the bidirectional channel of the valve core inside the control ball valve body 1 via the second pipe 41. Regardless of whether the medium flows in the forward or reverse direction, the cross-sectional area of ​​the fluid channel is changed by the rotation of the valve core, thereby realizing bidirectional regulation of the flow rate.

[0021] The first connecting flange 3 and the first pipe 31 are fixed together by a stabilizing support mechanism 5, and the second connecting flange 4 and the second pipe 41 are also fixed together by a stabilizing support mechanism 5. Specifically, the first connecting flange 3 and the right flange 312 are evenly connected by six sets of equidistant tie rods 54, and the ends of the tie rods 54 pass through the right tensioning seat 56 and are screwed together with nuts 57. This achieves the tightening and strengthening of the connection between the flanges at both ends of the control valve and the inlet and outlet pipes. The stabilizing support mechanism 5 forms a stable connection system. The tightening and fixing method can effectively limit the swaying of the ball valve and improve the service life of the ball valve by reducing the additional mechanical stress caused by swaying and reducing the risk of wear and fatigue damage to ball valve components such as valve core and valve seat. At the same time, it avoids loosening at the connection between the ball valve and the pipe, which can lead to poor sealing and leakage.

[0022] In a preferred embodiment, a left flange 311 is fixedly installed at one end of the first pipe 31, and a right flange 312 is fixedly installed at the other end of the first pipe 31. At the same time, the first pipe 31 is fixedly connected to the first connecting flange 3 through the left flange 311 at the end.

[0023] The left flange 311 and the first connecting flange 3 are evenly fixedly connected by multiple sets of bolts, and the left flange 311 and the first connecting flange 3 are sealed by a sealing gasket 52.

[0024] In a preferred embodiment, the stabilizing support mechanism 5 includes a first fixing plate 50, a left tensioning seat 51, a sealing gasket 52, a tie rod 54, a second fixing plate 55, and a right tensioning seat 56. The first fixing plate 50 is fixedly disposed on the outer circumference of the first connecting flange 3, while the second fixing plate 55 is fixedly disposed on the outer circumference of the right flange 312.

[0025] Both the first fixing plate 50 and the second fixing plate 55 are arranged in a ring shape. Six sets of left tensioning seats 51 are evenly fixedly connected to the outer circumference of the first fixing plate 50, and six sets of right tensioning seats 56 are evenly fixedly connected to the outer circumference of the second fixing plate 55.

[0026] In a preferred embodiment, the six sets of right tension seats 56 and the six sets of left tension seats 51 are all fixedly connected by tie rods 54, and one end of the tie rod 54 is fixedly provided with a force-bearing seat 53, while the other end of the tie rod 54 passes through the right tension seat 56 and is screwed and fixed with a nut 57; the six sets of right tension seats 56 and the six sets of left tension seats 51 are arranged opposite to each other.

[0027] A spring 571 is fixedly provided at the end of the nut 57, and a guide plate 572 is fixedly provided at the end of the spring 571 away from the nut 57.

[0028] When the nut 57 is tightened onto the end of the tie rod 54, the spring 571 is compressed between the nut 57 and the mounting surface. When the vibration generated by the flow of the medium inside the pipe occurs, the nut 57 tends to loosen. The rebound force of the spring 571 will continuously apply an axial pressure, which increases the thread friction between the nut 57 and the thread, thereby effectively preventing the nut 57 from loosening.

Claims

1. A bidirectional regulating dynamic balance control valve, comprising a control ball valve body (1), characterized in that: The ball valve body (1) is internally fitted with a ball valve core, and the ball valve core has a bidirectional channel. The ball valve body (1) is also fitted with an actuator (2) on top. One end of the ball valve body (1) is fixedly fitted with a first connecting flange (3), and the other end of the ball valve body (1) is fixedly fitted with a second connecting flange (4). The end of the second connecting flange (4) is screwed to the second pipe (41), and the end of the first connecting flange (3) is screwed to the first pipe (31). The first connecting flange (3) and the first pipe (31) are fixed together by a stabilizing support mechanism (5), and the second connecting flange (4) and the second pipe (41) are fixed together by a stabilizing support mechanism (5). The stabilizing support mechanism (5) includes a first fixing plate (50), a left tensioning seat (51), a sealing gasket (52), a tie rod (54), a second fixing plate (55), and a right tensioning seat (56). The first fixing plate (50) is fixedly disposed on the outer circumference of the first connecting flange (3), while the second fixing plate (55) is fixedly disposed on the outer circumference of the right flange (312). Both the first fixing plate (50) and the second fixing plate (55) are arranged in a ring, and the outer circumference of the first fixing plate (50) is evenly fixed. Six sets of left tension seats (51) are connected, and six sets of right tension seats (56) are uniformly fixedly connected to the outer circumference of the second fixing plate (55); the six sets of right tension seats (56) and the six sets of left tension seats (51) are fixedly connected by tie rods (54), and one end of the tie rod (54) is fixedly provided with a force-bearing seat (53), while the other end of the tie rod (54) passes through the right tension seat (56) and is screwed to the nut (57); the six sets of right tension seats (56) and the six sets of left tension seats (51) are arranged opposite to each other.

2. The bidirectional regulating dynamic balance control valve according to claim 1, characterized in that: A left flange (311) is fixedly installed at one end of the first pipe (31), and a right flange (312) is fixedly installed at the other end of the first pipe (31). At the same time, the first pipe (31) is fixedly connected to the first connecting flange (3) through the left flange (311) at the end.

3. The bidirectional regulating dynamic balance control valve according to claim 2, characterized in that: The left flange (311) and the first connecting flange (3) are uniformly fixedly connected by multiple sets of bolts, and the left flange (311) and the first connecting flange (3) are sealed by a sealing gasket (52).

4. The bidirectional regulating dynamic balance control valve according to claim 1, characterized in that: A spring (571) is fixedly provided at the end of the nut (57), and a guide plate (572) is fixedly provided at the end of the spring (571) away from the nut (57).

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