Double-valve-clack hydraulic nuclear power IP valve

Abstract

The utility model discloses a double-valve-clack hydraulic nuclear power IP valve, and relates to the field of double-valve-clack hydraulic nuclear power IP valves. The double-valve-clack hydraulic nuclear power IP valve comprises a valve body, a box body, an oil cylinder barrel, a cylinder barrel, a transmission unit and a buffer unit, the transmission unit is in transmission connection in the box body and the valve body, and the buffer unit is arranged in the cylinder barrel. According to the double-valve-clack hydraulic nuclear power IP valve, when the push rods push the push plates to move, the push plates push the springs to be compressed between the push rods at the moment, rotation of the crank is limited under the action of the push plates, the situation that the piston rods push the lug rings to drive the valve clacks to rotate fast is avoided, meanwhile, the push plates compress the multiple springs, and under the interaction of the multiple springs, the valve clacks rotate fast. The counter-acting force of the spring to the crank is effectively prevented from being too large, and the stability of the valve clack during rotation is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of double-valve-flap hydraulic nuclear power IP valves, in particular to a double-valve-flap hydraulic nuclear power IP valve. Background Art

[0002] Dual-disc hydraulic nuclear IP valves are commonly used in the nuclear island, conventional island, and auxiliary facilities of nuclear power plants to control and regulate the pressure, temperature, flow direction, and flow rate of media, ensuring safe operation of the plant. Their unique dual-disc design provides enhanced sealing performance and reliability.

[0003] As a basic automation component for controlling fluid, the solenoid valve controls the hydraulic system by controlling the on-off current of the electromagnet. The hydraulic system may be used to drive the opening and closing of the valve disc, thereby opening or closing different oil drain holes. In the existing technology, the liquid system is directly controlled by controlling the on-off current. The opening and closing of the valve disc are only controlled by the thrust of the piston rod, and the rotation of the valve disc cannot be buffered, resulting in instability of the valve disc when it rotates to open and close, affecting the sealing effect. Therefore, we propose a double-valve disc hydraulic nuclear power IP valve. Utility Model Content

[0004] In response to the shortcomings of the existing technology, the utility model provides a double-valve disc hydraulic nuclear power IP valve, which solves the problem that the opening and closing of the valve disc are only performed by the thrust of the piston rod, and the rotation of the valve disc cannot be buffered, resulting in the valve disc being unstable when rotating to open and close, affecting the sealing effect.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a double-valve hydraulic nuclear power IP valve, including a valve body, a box body, an oil cylinder, a cylinder, a transmission unit and a buffer unit, the box body is installed at the upper and lower ends of the valve body and is respectively located on both sides of the valve body, the oil cylinder and the cylinder are respectively fixedly connected to the two sides of the box body, the transmission unit is transmission-connected in the box body and the valve body, and the buffer unit is arranged in the cylinder.

[0006] The transmission unit includes a valve disc, a crank is connected above the valve disc, and the crank is rotatably connected in the box;

[0007] The buffer unit includes a push rod, which is rotatably connected to the outer wall of the crank, a push plate is slidably connected in the cylinder, a spring is connected between the push plates, and the push plate at the edge is fixedly connected to the push rod.

[0008] Preferably, the valve flap is rotatably connected to the valve body, and a sealing ring is attached to the outer peripheral wall of the valve flap, and the sealing ring is attached to the inner wall of the valve body.

[0009] Preferably, the end of the valve flap is fixedly connected to the valve shaft.

[0010] Preferably, a gear groove is provided on the inner wall of the valve shaft, the gear groove in the valve shaft is plugged into the gear on the bottom end face of the earring, and the valve flap is connected to the earring through the valve shaft.

[0011] Preferably, the earring is fixedly connected to the outer wall of the earring, and the piston rod is rotatably connected to the inner wall of the earring.

[0012] Preferably, the piston rod is slidably connected in the cylinder.

[0013] Preferably, a sensor is fixedly connected to the outer wall of the cylinder, and an end of the sensor is connected to one of the push plates.

[0014] The utility model discloses a double-valve hydraulic nuclear power IP valve, which has the following beneficial effects:

[0015] In this double-disc hydraulic nuclear power IP valve, the piston rod pushes the earring and the crank to rotate. The rotation of the earring causes the valve shaft and the valve disc to rotate accordingly, and the rotation of the valve disc causes the valve body to open or close. At this time, when the push rod pushes the push plate to move, the push plate push spring is compressed between the push rods. Under the action of the push plate, the rotation of the crank is restricted to prevent the piston rod from pushing the earring to drive the valve disc to rotate too quickly. At the same time, the push plate compresses multiple springs respectively. Under the interaction of multiple springs, the reaction force of the spring on the crank is effectively avoided to be too large, ensuring the stability of the valve disc during rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 This is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the valve body of the utility model;

[0019] Figure 3 This is a schematic diagram of the box connection of the utility model;

[0020] Figure 4 This is a schematic diagram of the connection between the transmission unit and the buffer unit of the utility model.

[0021] In the figure: 1. Valve body; 2. Box body; 3. Cylinder barrel; 301. Piston rod; 4. Cylinder barrel; 5. Transmission unit; 501. Valve disc; 502. Valve shaft; 503. Crank; 504. Earring; 6. Buffer unit; 601. Push rod; 602. Push plate; 603. Spring; 7. Sensor. DETAILED DESCRIPTION

[0022] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0023] The embodiment of the present application provides a double-valve disc hydraulic nuclear power IP valve, which solves the problem that the valve disc 501 is opened and closed only by the thrust of the piston rod 301, and the rotation of the valve disc 501 cannot be buffered, resulting in the valve disc 501 being unstable when rotating to open and close, affecting the sealing effect. The piston rod 301 pushes the earring 504 and the crank 503 to rotate, and the rotation of the earring 504 causes the valve shaft 502 and the valve disc 501 to rotate accordingly, and then the rotation of the valve disc 501 causes the valve body 1 to open or close. When closed, the push rod 601 pushes the push plate 602 to move. At this time, the push plate 602 pushes the spring 603 to be compressed between the push rod 601. Under the action of the push plate 602, the rotation of the crank 503 is restricted to prevent the piston rod 301 from pushing the earring 504 to drive the valve disc 501 to rotate too fast. At the same time, the push plate 602 compresses multiple springs 603 respectively. Under the interaction of multiple springs 603, the reaction force of the spring 603 on the crank 503 is effectively avoided to be too large, thereby ensuring the stability of the valve disc 501 during rotation.

[0024] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0025] The embodiment of the utility model discloses a double-valve-flap hydraulic nuclear power IP valve.

[0026] According to the attached Figure 1-4 As shown, it includes a valve body 1, a box body 2, an oil cylinder 3, a cylinder 4, a transmission unit 5 and a buffer unit 6. The box body 2 is installed at the upper and lower ends of the valve body 1 and is respectively located on both sides of the valve body 1. The box body 2 controls the opening and closing of the corresponding valve disc 501 to effectively improve the sealing effect. The oil cylinder 3 and the cylinder 4 are respectively fixedly connected to the two sides of the box body 2. The transmission unit 5 is transmission-connected to the box body 2 and the valve body 1. The buffer unit 6 is arranged in the cylinder 4.

[0027] The transmission unit 5 includes a valve disc 501. A crank 503 is connected above the valve disc 501. The crank 503 is rotatably connected to the housing 2 and is activated by the oil cylinder 3, driving the piston rod 301 to slide. At this time, the piston rod 301 pushes the earring 504 and the crank 503 to rotate. Under the rotation of the earring 504, the valve shaft 502 and the valve disc 501 are rotated accordingly. The rotation of the valve disc 501 further opens or closes the valve body 1.

[0028] The buffer unit 6 includes a push rod 601, which is rotatably connected to the outer wall of the crank 503, and a push plate 602 is slidably connected in the cylinder 4. A spring 603 is connected between the push plates 602, and the push plate 602 at the edge is fixedly connected to the push rod 601. When the push rod 601 pushes the push plate 602 to move, the push plate 602 pushes the spring 603 to be compressed between the push rod 601. Under the action of the push plate 602, the rotation of the crank 503 is restricted to prevent the piston rod 301 from pushing the earring 504 to drive the valve disc 501 to rotate faster. At the same time, the push plate 602 compresses multiple springs 603 respectively. Under the interaction of multiple springs 603, the reaction force of the spring 603 on the crank 503 is effectively prevented from being too large, thereby ensuring the stability of the valve disc 501 during rotation.

[0029] The valve flap 501 is rotatably connected to the valve body 1. A sealing ring is attached to the outer peripheral wall of the valve flap 501. The sealing ring is attached to the inner wall of the valve body 1. Under the action of the sealing ring, the valve flap 501 has a better sealing effect on the valve body 1.

[0030] The end of the valve disc 501 is fixedly connected to the valve shaft 502 .

[0031] A gear groove is provided on the inner wall of the valve shaft 502, and the gear groove in the valve shaft 502 is plugged into the gear on the bottom end face of the earring 504. The valve flap 501 is connected to the earring 504 through the valve shaft 502. Under the action of the gear and the gear groove, the connection between the valve shaft 502 and the crank 503 is relatively stable, so that the crank 503 drives the valve flap 501 to rotate more stably.

[0032] The outer wall of the earring 504 is fixedly connected to the earring 504 , and the inner wall of the earring 504 is rotatably connected to the piston rod 301 .

[0033] The piston rod 301 is slidably connected in the cylinder 3. When the cylinder 3 is started, the piston rod 301 is driven to slide. At this time, the piston rod 301 pushes the earring 504 and the crank 503 to rotate. Under the rotation of the earring 504, the valve shaft 502 and the valve disc 501 are rotated accordingly, and then under the rotation of the valve disc 501, the valve body 1 is opened or closed.

[0034] The outer wall of the cylinder 4 is fixedly connected to a sensor 7, and the end of the sensor 7 is connected to one of the push plates 602. The crank 503 is rotated to drive the push rod 601 to slide. At this time, the push rod 601 pushes the push plate 602 to move. Under the movement of the push plate 602, the end of the sensor 7 moves to monitor the rotation of the transmission unit 5 and ensure the accuracy of the rotation angle of the transmission unit 5.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A double-valve hydraulic nuclear power IP valve, characterized in that: The invention comprises a valve body (1), a box body (2), an oil cylinder barrel (3), a cylinder barrel (4), a transmission unit (5) and a buffer unit (6); the box body (2) is installed at the upper and lower ends of the valve body (1) and is respectively located on both sides of the valve body (1); the oil cylinder barrel (3) and the cylinder barrel (4) are respectively fixedly connected to both sides of the box body (2); the transmission unit (5) is transmission-connected in the box body (2) and the valve body (1); the buffer unit (6) is arranged in the cylinder barrel (4); The transmission unit (5) comprises a valve flap (501), a crank (503) is connected above the valve flap (501), and the crank (503) is rotatably connected in the box (2); The buffer unit (6) includes a push rod (601) which is rotatably connected to the outer wall of the crank (503); a push plate (602) is slidably connected in the cylinder (4); a spring (603) is connected between the push plates (602); and the push plate (602) at the edge is fixedly connected to the push rod (601).

2. A double-valve hydraulic nuclear power IP valve according to claim 1, characterized in that: The valve flap (501) is rotatably connected to the valve body (1), and a sealing ring is attached to the outer peripheral wall of the valve flap (501), and the sealing ring is attached to the inner wall of the valve body (1).

3. A double-valve hydraulic nuclear power IP valve according to claim 2, characterized in that: The end of the valve flap (501) is fixedly connected to a valve shaft (502).

4. A double-valve hydraulic nuclear power IP valve according to claim 3, characterized in that: The inner wall of the valve shaft (502) is provided with a gear groove, the gear groove in the valve shaft (502) is plugged into the gear on the bottom end face of the earring (504), and the valve flap (501) is connected to the earring (504) through the valve shaft (502).

5. A double-valve hydraulic nuclear power IP valve according to claim 4, characterized in that: The outer wall of the earring (504) is fixedly connected to the earring (504), and the inner wall of the earring (504) is rotatably connected to the piston rod (301).

6. A double-valve hydraulic nuclear power IP valve according to claim 5, characterized in that: The piston rod (301) is slidably connected in the oil cylinder (3).

7. The double-valve hydraulic nuclear power IP valve according to claim 1, characterized in that: A sensor (7) is fixedly connected to the outer wall of the cylinder (4), and an end of the sensor (7) is connected to one of the push plates (602).

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