Explosion-proof pressure reducing valve

Abstract

The utility model discloses an explosion-proof pressure reducing valve, which belongs to the technical field of pressure reducing valves and comprises a pressure reducing valve body, pressure gauges are fixedly connected to two sides of the top of the pressure reducing valve body, detection ends at the bottoms of the pressure gauges are positioned in an inner cavity of the pressure reducing valve body, a motor is fixedly mounted at the top of the pressure reducing valve body, and an output end of the motor is fixedly connected with a rotating rod. Connecting rods are fixedly connected to the two sides of the surface of the rotating rod. The motor drives the rotating rod to rotate, the rotating rod drives the connecting rod to rotate, and the connecting rod drives the arc-shaped sealing plate to rotate, so that the position of the arc-shaped sealing plate is changed until the arc-shaped sealing plate is far away from the other end of the flow dividing pipe, and the other end of the flow dividing pipe is in an open state; and then liquid in the pressure reducing valve body is output through the two flow dividing pipes and is divided, so that the purpose of pressure relief is achieved, and the situation that explosion occurs due to the fact that the pressure in the pressure reducing valve body is too large is prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of pressure reducing valves, and in particular relates to an explosion-proof pressure reducing valve. Background Art

[0002] The pressure reducing valve is a valve that reduces the inlet pressure to a certain required outlet pressure through regulation, and automatically maintains a stable outlet pressure by relying on the energy of the medium itself. From the perspective of fluid mechanics, the pressure reducing valve is a throttling element with variable local resistance, that is, by changing the throttling area, the flow rate and the kinetic energy of the fluid are changed, resulting in different pressure losses, thereby achieving the purpose of reducing pressure. Then, by relying on the regulation of the control and regulation system, the fluctuation of the pressure behind the valve is balanced with the spring force, so that the pressure behind the valve remains constant within a certain error range.

[0003] When using the current pressure reducing valve, it is necessary to first connect the flanges set at both ends of the pressure reducing valve to the external pipe, and then allow the liquid to enter from the inlet of the pressure reducing valve through the external pipe, and then discharge from the outlet of the pressure reducing valve. Because the liquid passing through the pressure reducing valve is not completely clean and free of impurities, some impurities are easily accumulated inside the pressure reducing valve during long-term use. When there are too many impurities, it is easy to cause the pressure reducing valve to be blocked, resulting in a decrease in the speed of the pressure reducing valve to transport the solution. At the same time, the internal pressure of the pressure reducing valve continues to increase. When the pressure is too high, the pressure reducing valve will explode, posing a great safety hazard. Therefore, we provide an explosion-proof pressure reducing valve. Utility Model Content

[0004] The purpose of the utility model is to provide an explosion-proof pressure reducing valve to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an explosion-proof pressure reducing valve, comprising a pressure reducing valve body, pressure gauges are fixedly connected to both sides of the top of the pressure reducing valve body, a detection end of the bottom of the pressure gauge is located in the inner cavity of the pressure reducing valve body, a motor is fixedly installed on the top of the pressure reducing valve body, a first rotating rod is fixedly connected to the output end of the motor, connecting rods are fixedly connected to both sides of the surface of the first rotating rod, an arc-shaped sealing plate is fixedly connected to one end of the connecting rod, a shunt pipe is connected to the front and back surfaces of the pressure reducing valve body, a No. 2 flange is fixedly connected to one end of the shunt pipe, a size of the arc-shaped sealing plate is matched with the other end of the shunt pipe, a filter screen is fixedly connected to both sides of the inner cavity of the pressure reducing valve body, and the number of the filter screens is two, a vertical plate is fixedly connected to both sides of the inner cavity of the pressure reducing valve body and located on one side of the filter screen, a bearing is fixedly connected to one side of the vertical plate, and the inner ring of the bearing is rotatably connected to the second rotating rod, and a brush plate is fixedly connected to the surface of the second rotating rod.

[0006] By adopting the above scheme, the pressure of the inner cavity of the pressure reducing valve body is detected by a pressure gauge and displayed for easy reading by the user. When the pressure inside the pressure reducing valve body exceeds the set value, the motor is started, the first rotating rod is driven to rotate by the motor, the connecting rod is driven to rotate by the first rotating rod, and the arc sealing plate is driven to rotate by the connecting rod, thereby changing the position of the arc sealing plate until the arc sealing plate is away from the other end of the shunt pipe, so that the other end of the shunt pipe is in an open state, and then the liquid inside the pressure reducing valve body is output through the two shunt pipes, and the liquid is shunted, so as to achieve the purpose of pressure relief, and prevent the inside of the pressure reducing valve body from exploding due to excessive pressure. By setting the filter net, impurities in the liquid are filtered, and the purity of the liquid is further improved. At the same time, the impact force during liquid transportation drives the second rotating rod to rotate on the inner ring of the bearing, and the brush plate is driven to rotate by the second rotating rod, and the impurities on the filter net are scraped off by the brush plate, so as to prevent the filter net from being blocked during long-term use, thereby reducing the transportation efficiency.

[0007] As a preferred embodiment of the explosion-proof pressure reducing valve, the bottom of the first rotating rod is movably connected to a bearing, and the bottom of the bearing is fixedly connected to the bottom of the inner cavity of the pressure reducing valve body.

[0008] By adopting the above solution, the first rotating rod is limited by the setting of the bearing, and the first rotating rod is assisted to rotate, thereby improving the smoothness of the first rotating rod during operation.

[0009] As a preferred implementation of an explosion-proof pressure reducing valve, both ends of the pressure reducing valve body are fixedly connected with a No. 1 flange, and a No. 1 threaded hole is provided on the No. 1 flange.

[0010] By adopting the above scheme, through the setting of the No. 1 flange, since the No. 1 flange has a No. 1 threaded hole and is used in conjunction with external bolts and external tools, the purpose of rapid disassembly and assembly is achieved, which greatly improves the efficiency of disassembly and assembly.

[0011] As a preferred embodiment of an explosion-proof pressure reducing valve, support legs are fixedly connected to both sides of the bottom of the pressure reducing valve body, a base plate is fixedly connected to the bottom of the support legs, and positioning holes are opened on the support legs.

[0012] By adopting the above scheme, the pressure reducing valve body is supported by the setting of the supporting legs, and the supporting legs can be fixed at a designated position for use in conjunction with the positioning holes on the supporting legs.

[0013] As a preferred embodiment of the explosion-proof pressure reducing valve, a group of No. 2 threaded holes is opened on the No. 2 flange, and the number of the No. 2 threaded holes is six.

[0014] By adopting the above scheme, the compatibility of the threaded holes and the external bolts can be used to quickly disassemble and assemble the connection between the No. 2 flange and the external pipe. Since there are six No. 2 threaded holes, the sealing performance of the connection between the No. 2 flange and the external pipe is further improved.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model drives the first rotating rod to rotate through a motor, drives the connecting rod to rotate through the first rotating rod, and drives the arc sealing plate to rotate through the connecting rod, thereby changing the position of the arc sealing plate until the arc sealing plate is away from the other end of the shunt pipe, so that the other end of the shunt pipe is in an open state, and then the liquid inside the pressure reducing valve body is output through the two shunt pipes, and the liquid is shunt, thereby achieving the purpose of pressure relief, preventing the inside of the pressure reducing valve body from exploding due to excessive pressure.

[0017] 2. The utility model filters impurities in the liquid by setting a filter screen, thereby further improving the purity of the liquid. At the same time, the impact force during liquid transportation drives the second rotating rod to rotate on the inner ring of the bearing, and the second rotating rod drives the brush plate to rotate. The impurities on the filter screen are scraped off by the brush plate, thereby preventing the filter screen from being blocked during long-term use, thereby reducing the transportation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the second viewing angle of the present utility model;

[0020] Figure 3 It is a top sectional view of the pressure reducing valve body of the utility model.

[0021] In the figure: 1. pressure reducing valve body; 2. No. 1 flange; 3. shunt pipe; 4. No. 2 flange; 5. pressure gauge; 6. filter screen; 7. support leg; 8. base plate; 9. first rotating rod; 10. connecting rod; 11. arc sealing plate; 12. motor; 13. vertical plate; 14. brush plate; 15. second rotating rod. DETAILED DESCRIPTION

[0022] See also Figure 1-3 An explosion-proof pressure reducing valve comprises a pressure reducing valve body 1, both sides of the top of the pressure reducing valve body 1 are fixedly connected with a pressure gauge 5, the detection end of the bottom of the pressure gauge 5 is located in the inner cavity of the pressure reducing valve body 1, a motor 12 is fixedly installed on the top of the pressure reducing valve body 1, and the output end of the motor 12 is fixedly connected with a first rotating rod 9, see Figure 3As shown, the bottom of the first rotating rod 9 is movably connected with a bearing, and the bottom of the bearing is fixedly connected to the bottom of the inner cavity of the pressure reducing valve body 1. By setting the bearing, the first rotating rod 9 is limited and assisted in rotating, thereby improving the smoothness of the first rotating rod 9 during operation. Both sides of the surface of the first rotating rod 9 are fixedly connected with connecting rods 10, and one end of the connecting rod 10 is fixedly connected with an arc-shaped sealing plate 11. The front and back surfaces of the pressure reducing valve body 1 are connected with a shunt pipe 3, and one end of the shunt pipe 3 is fixedly connected with a second flange 4. The size of the arc-shaped sealing plate 11 is adapted to the other end of the shunt pipe 3. The two sides of the pressure reducing valve body 1 are fixedly connected with a filter screen 6, and the number of the filter screens 6 is two. The two sides of the inner cavity of the pressure reducing valve body 1 and the side of the filter screen 6 are fixedly connected with a vertical plate 13, and one side of the vertical plate 13 is fixedly connected with a bearing, and the inner ring of the bearing is rotatably connected with a second rotating rod 15, and the surface of the second rotating rod 15 is fixedly connected with a brush plate 14. The pressure of the inner cavity of the pressure reducing valve body 1 is detected by the pressure gauge 5 and displayed for the convenience of the user to read. When the pressure inside the pressure reducing valve body 1 exceeds the set value, the motor 12 is started, and the first rotating rod 9 is driven by the motor 12 to rotate, and the connecting rod 10 is driven by the first rotating rod 9 to rotate. The arc sealing plate 11 is rotated by the connecting rod 10, thereby changing the position of the arc sealing plate 11 until the arc sealing plate 11 is away from the other end of the shunt pipe 3, so that the other end of the shunt pipe 3 is in an open state, and then the liquid inside the pressure reducing valve body 1 is output through the two shunt pipes 3, and the liquid is shunted, so as to achieve the purpose of pressure relief, and prevent the pressure inside the pressure reducing valve body 1 from exploding due to excessive pressure. When the liquid passes through the filter screen 6 during the transportation process, the impurities in the liquid are blocked by the filter screen 6 to prevent the impurities from entering the inner cavity of the pressure reducing valve body 1, while improving the purity of the liquid Cleanliness, the liquid will generate impact force when being transported, and the impact force will drive the second rotating rod 15 to rotate on the inner ring of the bearing. Because one side of the bearing is fixedly connected to one side of the vertical plate 13, the second rotating rod 15 can stably rotate on the inner ring of the bearing. When the second rotating rod 15 is rotating, it will drive the brush plate 14 on the surface of the second rotating rod 15 to rotate on the surface of the filter screen 6. The brush on the brush plate 14 can be used to scrape off impurities inside the filter screen 6. The scraped impurities will be output through the shunt pipe 3 to prevent the filter screen 6 from being blocked during long-term use, thereby reducing the transportation efficiency of the pressure reducing valve body 1.

[0023] See Figure 1 As shown, both ends of the pressure reducing valve body 1 are fixedly connected with a No. 1 flange 2, and a No. 1 threaded hole is provided on the No. 1 flange 2. By setting the No. 1 flange 2, because the No. 1 threaded hole is provided on the No. 1 flange 2, and using with external bolts and external tools, the purpose of rapid disassembly and assembly is achieved, and the efficiency of disassembly and assembly is greatly improved. Figure 2As shown, both sides of the bottom of the pressure reducing valve body 1 are fixedly connected with support legs 7, and the bottom of the support legs 7 is fixedly connected with a base plate 8. The support legs 7 are provided with positioning holes. The pressure reducing valve body 1 is supported by the setting of the support legs 7, and the support legs 7 can be fixed at a specified position for use in conjunction with the positioning holes on the support legs 7. Figure 1 As shown, a group of No. 2 threaded holes is provided on the No. 2 flange 4, and the number of the No. 2 threaded holes is six. By utilizing the compatibility of the threaded holes and the external bolts, the connection between the No. 2 flange 4 and the external pipe can be quickly disassembled and assembled. Since the number of the No. 2 threaded holes is six, the sealing performance of the connection between the No. 2 flange 4 and the external pipe is further improved.

[0024] When in use, first place the base plate 8 at the specified position, and pass the external limiting mechanism through the positioning hole on the supporting leg 7 to fix the position of the pressure reducing valve body 1, and then clamp the flange on the external pipeline with the No. 1 flange 2 at both ends of the pressure reducing valve body 1 and the No. 2 flange 4 on the front and back surfaces of the pressure reducing valve body 1. After the clamping is completed, it is fixed with the cooperation of external bolts and external tools. After the installation is completed, during the use of the pressure reducing valve body 1, the pressure of the inner cavity of the pressure reducing valve body 1 is detected by the pressure gauge 5 and displayed for the convenience of the user to read. When the pressure reducing valve is When the pressure inside the body 1 exceeds the set value, the motor 12 is started, and the first rotating rod 9 is driven to rotate by the motor 12, and the connecting rod 10 is driven to rotate by the first rotating rod 9, and the arc sealing plate 11 is driven to rotate by the connecting rod 10, thereby changing the position of the arc sealing plate 11 until the arc sealing plate 11 is away from the other end of the shunt pipe 3, so that the other end of the shunt pipe 3 is in an open state, and finally the liquid inside the pressure reducing valve body 1 is output through the two shunt pipes 3, and the liquid is shunt, thereby achieving the purpose of pressure relief, and preventing the inside of the pressure reducing valve body 1 from exploding due to excessive pressure.

Claims

1. An explosion-proof pressure reducing valve, characterized in that: The invention comprises a pressure reducing valve body (1), wherein both sides of the top of the pressure reducing valve body (1) are fixedly connected with a pressure gauge (5), the detection end of the bottom of the pressure gauge (5) is located in the inner cavity of the pressure reducing valve body (1), a motor (12) is fixedly installed on the top of the pressure reducing valve body (1), the output end of the motor (12) is fixedly connected with a first rotating rod (9), both sides of the surface of the first rotating rod (9) are fixedly connected with a connecting rod (10), one end of the connecting rod (10) is fixedly connected with an arc-shaped sealing plate (11), the front surface and the back surface of the pressure reducing valve body (1) are both connected with a shunt pipe (3), and the One end of the shunt pipe (3) is fixedly connected to a second flange (4), the size of the arc-shaped sealing plate (11) is adapted to the other end of the shunt pipe (3), both sides of the inner cavity of the pressure reducing valve body (1) are fixedly connected to filter screens (6), the number of the filter screens (6) is two, both sides of the inner cavity of the pressure reducing valve body (1) and located on one side of the filter screen (6) are fixedly connected to vertical plates (13), one side of the vertical plate (13) is fixedly connected to a bearing, and the inner ring of the bearing is rotatably connected to a second rotating rod (15), and the surface of the second rotating rod (15) is fixedly connected to a brush plate (14).

2. An explosion-proof pressure reducing valve according to claim 1, characterized in that: The bottom of the first rotating rod (9) is movably connected to a bearing, and the bottom of the bearing is fixedly connected to the bottom of the inner cavity of the pressure reducing valve body (1).

3. The explosion-proof pressure reducing valve according to claim 1, characterized in that: Both ends of the pressure reducing valve body (1) are fixedly connected to a No. 1 flange (2), and a No. 1 threaded hole is provided on the No. 1 flange (2).

4. The explosion-proof pressure reducing valve according to claim 1, characterized in that: Support legs (7) are fixedly connected to both sides of the bottom of the pressure reducing valve body (1), a base plate (8) is fixedly connected to the bottom of the support legs (7), and positioning holes are provided on the support legs (7).

5. The explosion-proof pressure reducing valve according to claim 1, characterized in that: The No. 2 flange (4) is provided with a group of No. 2 threaded holes, and the number of the No. 2 threaded holes is six.

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