A pressure relief valve for a pressure vessel
By designing a pressure relief valve including legs, pressure relief pipe, support frame and seesaw, the pressure of the pressure relief device is adjusted by using the mechanical structure of the sealing cylinder and the moving block, the problem of poor adaptability of the existing pressure relief valve is solved, and the problem of poor adaptability of the existing pressure relief valve is realized. Flexible pressure relief of gas or liquid in the pressure vessel and reminding personnel through buzzers, improving safety.
Patent Information
- Application Number
- CN202211276839.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-10-19
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2042-10-19
AI Technical Summary
The existing pressure vessel pressure relief valve can only reach a certain pressure to open when used, and the pressure relief value cannot be adjusted, and the adaptability is poor, and it cannot effectively respond to different pressure needs.
A pressure relief valve consisting of bolt-mounted legs, pressure relief tube, support frame and seesaw is designed. The pressure relief valve consists of the right rod, the left rod, the vertical rod, the cylinder, the middle rod and the sealing cylinder, through which the sealing cylinder is sealed. The compression and separation of the moving blocks drive the cylinder and buffer rod upwards, the seesaw tilts, and the position of the sealing plate is adjusted by combining the rotating screw and the pulling rod to realize the pressure adjustment of the pressure relief device.
Adaptive pressure relief of gas or liquid in the pressure vessel is achieved, the pressure relief value can be adjusted according to different pressure needs, the adaptability and safety of the pressure relief device is improved, and personnel are reminded through the buzzer.
Smart Images
Figure CN115614668B_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the field of pressure vessels, and in particular relates to a pressure relief valve for a pressure vessel. Background Art
[0002] A pressure vessel refers to a closed device that contains gas or liquid and bears a certain pressure. A pressure vessel is used to store gas or liquid for subsequent use. Due to its high pressure, a pressure relief valve needs to be installed on the pressure vessel for safety. When the pressure in the pressure vessel is too high, the pressure is released through the pressure relief valve, thereby improving the safety of the pressure vessel. The existing pressure relief valve can only be opened when a certain pressure is reached during use, and the pressure relief value of the pressure relief valve cannot be adjusted, and its adaptability is poor. Summary of the invention
[0003] The object of the present invention is to provide a pressure relief valve for a pressure vessel to solve the above technical problems.
[0004] To achieve the above purpose, the present invention adopts the following technical solutions:
[0005] A pressure relief valve for a pressure vessel comprises a pressure vessel body, a support leg, a pressure relief pipe, a support frame, and a seesaw, characterized in that a bolt-mounted support leg is provided at the bottom of the pressure vessel body, three support legs are provided, and the three support legs are distributed in a triangular shape; an integrally formed pressure relief pipe is provided at the top of the pressure vessel body; a seesaw is provided above the pressure relief pipe; the seesaw is connected to the support frame by an axis; the support frame is installed on the top of the pressure vessel body by screws; a pressure relief device is installed in the pressure vessel body; the pressure relief device comprises a right rod, a left rod, a vertical rod, a cylinder, an intermediate rod, and an intermediate rod connecting rod; the bottom of the right rod is folded inwardly, the bottom of the left rod is folded inwardly, the right rod and the left rod are symmetrically arranged along the vertical rod, an integrally formed disc is provided at the bottom of the vertical rod, the disc is connected to the inner wall of the pressure vessel body by a support rod, a cylinder is sleeved on the vertical rod, an integrally formed fixing ear is provided on the cylinder, the intermediate rod connecting rod is connected to the fixing ear via an axis, the intermediate rod connecting rod is connected to the intermediate rod via an axis, and the intermediate rod and the intermediate rod connecting rod are symmetrically arranged along the cylinder.
[0006] Preferably, an upper rod connected with an axis is provided at the top of the right rod and the left rod, the upper rod is connected to the moving block via the axis, the moving block is provided with two pieces, the moving block is connected to the guide rail via a slider, the guide rail is installed in the pressure vessel body, the moving block is provided with an arc installed with screws, the two arcs form a circle, the bottom of the right rod and the left rod is provided with a sealing cylinder, the sealing cylinder is a syringe-type design, and the sealing cylinder is connected to the right rod and the left rod via the axis.
[0007] Preferably, the cylinder is provided with a buffer rod installed with screws, the buffer rod is designed in a [, the top of the buffer rod is connected to the moving rod via screws, the moving rod is designed in an inverted cone shape, the upper part of the moving rod is located in the pressure relief pipe, the top of the moving rod is connected to the seesaw, and the bottom of the moving rod is in contact with the arc.
[0008] Preferably, a slide groove is provided on the seesaw, and a ball is installed in the slide groove. The ball in the seesaw can move freely but will not slide out of the slide groove.
[0009] Preferably, a sealing plate is provided in the sealing cylinder, the sealing plate is located behind the piston rod, the sealing plate is connected via a pull rod, a threaded screw is provided on the sealing cylinder, the screw enters the sealing cylinder, and the other end of the screw penetrates the pressure vessel body and extends above the pressure vessel body.
[0010] Preferably, a threaded connection sleeve is provided on the screw rod, the sleeve is located inside the sealing cylinder, an integrally formed fixed block is provided on one side of the sleeve, the fixed block is connected to the pull rod via the shaft, the pull rod is connected to the fixing ear on the sealing plate via the shaft, and a screw-mounted limit rod is provided below the screw rod.
[0011] Preferably, a pressure column installed with screws is provided at the bottom of the seesaw away from the moving rod. The bottom of the pressure column is made of conductive material, and the pressure column is connected to the neutral line by a wire. A fixed box is provided under the seesaw, and a spring installed with screws is provided in the fixed box. A conductive column is installed in the spring, and the conductive column is connected to the buzzer via a wire. The live wire is connected to the buzzer, and the buzzer is installed in the fixed box by screws.
[0012] Compared with the prior art, the present invention has the following advantages: the present invention has a reasonable design; when the pressure in the pressure vessel body increases to a large value, the sealing cylinder will be compressed, and after the sealing cylinder is compressed, the right rod and the left rod will move toward the position close to the vertical rod, and the movement of the right rod and the left rod will drive the upper rod to move away from the disc, and at the same time, the moving block and the arc will separate from the moving rod, and the movement of the right rod and the left rod will cause the middle rod and the middle rod connecting rod to push the cylinder upward, and the upward movement of the cylinder will drive the buffer rod to move upward, and the upward movement of the buffer rod will push the moving rod upward, and after the moving rod moves upward, the lower part of the moving rod becomes smaller so that the gas or liquid can be discharged through the gap between the moving rod and the pressure relief pipe; The upward movement of the moving rod can make the seesaw tilt to the side away from the pressure relief pipe. The movement of the ball in the slide groove accelerates the tilting speed. The pressure column at the bottom of the seesaw moves downward to compress the spring. The pressure column contacts the conductive column to energize the buzzer and make a sound to remind people in time; the rotating screw rod makes the sleeve move upward along the screw rod, thereby tilting the pulling rod and then pulling the sealing plate to move closer to the right end of the sealing cylinder, increasing the pressure on the sealing cylinder. Conversely, moving the sealing plate to the left reduces the pressure on the sealing cylinder. Changing the position of the sealing plate can change the pressure relief device's ability to withstand pressure and thus adjust the pressure relief value of the pressure relief device to meet different pressure relief needs. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of a pressure relief valve for a pressure vessel of the present invention.
[0014] Figure 2 It is a cross-sectional view of a pressure vessel of the pressure relief valve for a pressure vessel of the present invention.
[0015] Figure 3 It is a schematic diagram of a pressure relief device of a pressure relief valve for a pressure vessel of the present invention.
[0016] Figure 4 This is a schematic diagram of the pressure relief device of the pressure relief valve for a pressure vessel of the present invention with the moving block removed.
[0017] Figure 5 It is a schematic cross-sectional view of a sealing cylinder of a pressure relief valve for a pressure vessel of the present invention.
[0018] Figure 6 It is a partial schematic diagram of the screw rod and sleeve of the pressure relief valve for the pressure vessel of the present invention.
[0019] Figure 7 It is a schematic diagram of a seesaw and a fixed box of a pressure relief valve for a pressure vessel of the present invention. DETAILED DESCRIPTION
[0020] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.
[0021] like Figure 1-Figure 7As shown, a pressure relief valve for a pressure vessel comprises a pressure vessel body 1, a leg 2, a pressure relief pipe 3, a support frame 4, and a seesaw 5. The bottom of the pressure vessel body 1 is provided with a bolt-mounted leg 2, and three legs 2 are provided. The three legs 2 are distributed in a triangle. The top of the pressure vessel body 1 is provided with an integrally formed pressure relief pipe 3, and a seesaw 5 is provided above the pressure relief pipe 3. The seesaw 5 is connected to the support frame 4 by an axis, and the support frame 4 is installed on the top of the pressure vessel body 1 by screws. A pressure relief device 6 is installed in the pressure vessel body 1, and the pressure relief device 6 comprises a right rod 7, a left rod 8, a vertical rod 9, a cylinder 10, an intermediate rod 11, and an intermediate rod connecting rod 12. The bottom of the right rod 7 is folded inward, and the bottom of the left rod 8 is folded inward. The right rod 7 and the left rod 8 are symmetrical along the vertical rod 9. The bottom of the vertical rod 9 is provided with an integrally formed disc 23, and the disc 23 is connected to the inner wall of the pressure vessel body 1 by a support rod. The vertical rod 9 is sleeved with a cylinder 10, and the cylinder 10 is provided with an integrally formed fixing ear. The intermediate rod connecting rod 12 is connected to the fixing ear via an axis, and the intermediate rod connecting rod 12 is connected to the intermediate rod 11 via an axis. The intermediate rod 11 and the intermediate rod connecting rod 12 are symmetrically arranged along the cylinder 10. The tops of the right rod 7 and the left rod 8 are provided with an upper rod 13 connected by an axis, and the upper rod 13 is connected to the moving block 14 via an axis. The moving block 14 is provided with two blocks, and the moving block 14 is connected to the guide rail via a slider, and the guide rail is installed in the pressure vessel body 1. The moving block 14 is provided with a screw-mounted arc 15, and the two arcs 15 form a circle. The bottom of the right rod 7 and the left rod 8 is provided with There is a sealing cylinder 17, which is a syringe-type design. The sealing cylinder 17 is connected to the right rod 7 and the left rod 8 via an axis. A buffer rod 19 installed with screws is provided on the cylinder 10. The buffer rod 19 is [designed. The top of the buffer rod 19 is connected to the moving rod 16 via screws. The moving rod 16 is designed in an inverted cone. The upper part of the moving rod 16 is located at the pressure relief pipe 3, and the top of the moving rod 16 is connected to the seesaw 5. The bottom of the moving rod 16 is in contact with the arc 15. A slide groove 21 is provided on the seesaw 5. A ball 20 is installed in the slide groove 21. The ball 20 in the seesaw 5 can move freely but will not slide out of the slide groove 21. A sealing plate 24 is provided in the sealing cylinder 17. The sealing plate 24 is located behind the piston rod. The sealing plate 24 is connected via a pulling rod 25. A threaded screw 18 is provided, the screw 18 enters the sealing cylinder 17, the other end of the screw 18 penetrates the pressure vessel body 1 and extends above the pressure vessel body 1, a threaded sleeve 26 is provided on the screw 18, the sleeve 26 is located inside the sealing cylinder 17, an integrally formed fixing block 27 is provided on one side of the sleeve 26, the fixing block 27 is connected to the pull rod 25 via the axis, the pull rod 25 is connected to the fixing ear on the sealing plate 24 via the axis, a limit rod 28 installed by screws is provided below the screw 18, a pressure column 30 installed by screws is provided at the bottom of the seesaw 5 away from the moving rod 16, the bottom of the pressure column 30 is made of conductive material, the pressure column 30 is connected to the neutral line by a wire, a fixing box 29 is provided below the seesaw 5, and a round hole for the pressure column to pass through is opened on the fixing box,A spring 31 installed with screws is provided in the fixing box 29. The spring is located below the pressure column. The spring is made of non-conductive material. A conductive column 32 is installed in the spring 31. The conductive column 32 is connected to the buzzer via a wire. The live wire is connected to the buzzer. The buzzer is installed in the fixing box 29 with screws.
[0022] The working principle of the present invention is as follows: the gas or liquid to be stored is injected into the pressure vessel body 1. When the pressure in the pressure vessel body 1 increases to a large value, the sealing cylinder 17 is compressed. After the sealing cylinder 17 is compressed, the right rod 7 and the left rod 8 move toward the vertical rod 9. The right rod 7 and the left rod 8 move to drive the upper rod 13 to move away from the disc 23. At the same time, the moving block 13 and the arc 15 are separated from the moving rod 16. The right rod 7 and the left rod 8 move to make the middle rod 11 and the middle rod connecting rod 12 push the cylinder 10 upward. The cylinder 10 moves upward to drive the buffer rod 19 to move upward. The buffer rod 19 moves upward to push the moving rod 16 upward. After the moving rod 16 moves upward, the lower part of the moving rod 16 becomes smaller, so that the gas or liquid passes through the gap between the moving rod 16 and the pressure relief pipe 3. The gap is discharged, and the moving rod 16 moves upward to make the seesaw 5 tilt to the side away from the pressure relief pipe 3. The ball 20 moves in the slide groove 21 to accelerate the tilting speed. The pressure column 30 at the lower part of the seesaw 5 moves downward to compress the spring 31. The pressure column 30 contacts the conductive column 32 to energize the buzzer 33 to make a sound to remind people in time, and the screw rod 18 is rotated to make the sleeve 26 move upward along the screw rod 18, so that the pulling rod 25 is tilted and then the sealing plate 24 is pulled to move close to the right end of the sealing cylinder 17, increasing the pressure on the sealing cylinder 17. Conversely, the sealing plate 24 moves to the left to reduce the pressure on the sealing cylinder 17. Changing the position of the sealing plate 24 can change the pressure relief device's ability to withstand pressure and thus adjust the pressure relief value of the pressure relief device to adapt to different pressure relief needs.
[0023] The above is a preferred embodiment of the present invention. For ordinary technicians in this field, according to the teachings of the present invention, without departing from the principles and spirit of the present invention, changes, modifications, substitutions and variations made to the implementation methods are still within the scope of protection of the present invention.
Claims
1. A pressure relief valve for a pressure vessel, comprising a pressure vessel body (1), a support leg (2), a pressure relief pipe (3), a support frame (4), and a seesaw (5), characterized in that: The bottom of the pressure vessel body (1) is provided with a bolt-mounted support leg (2), and the support legs (2) are provided with three support legs (2), and the three support legs (2) are distributed in a triangular shape. The top of the pressure vessel body (1) is provided with an integrally formed pressure relief pipe (3), and a seesaw (5) is provided above the pressure relief pipe (3). The seesaw (5) is connected to a support frame (4) by means of an axis, and the support frame (4) is installed on the top of the pressure vessel body (1) by means of screws. A pressure relief device (6) is installed in the pressure vessel body (1), and the pressure relief device (6) comprises a right rod (7), a left rod (8), a vertical rod (9), a cylinder (10), an intermediate rod (11), and an intermediate rod connecting rod (12). The bottom of the right rod (7) is provided with a pressure relief device (6), and the pressure relief device (6) comprises a right rod (7), a left rod (8), a vertical rod (9), a cylinder (10), an intermediate rod (11), and an intermediate rod connecting rod (12). The bottom of the left rod (8) is folded inwards, the bottom of the left rod (8) is folded inwards, the right rod (7) and the left rod (8) are symmetrically arranged along the vertical rod (9), the bottom of the vertical rod (9) is provided with an integrally formed disc (23), the disc (23) is connected to the inner wall of the pressure vessel body (1) by a support rod, the vertical rod (9) is sleeved with a cylinder (10), the cylinder (10) is provided with an integrally formed fixing ear, the middle rod connecting rod (12) is connected to the fixing ear via an axis, the middle rod connecting rod (12) is connected to the middle rod (11) via an axis, the middle rod (11) and the middle rod connecting rod (12) are two groups, and are symmetrically arranged along the cylinder (10); the tops of the right rod (7) and the left rod (8) are provided with an axis The upper rod (13) is connected to the upper rod (13), the upper rod (13) is connected to the moving block (14) via an axis, the moving block (14) is provided with two blocks, the moving block (14) is connected to the guide rail via a slider, the guide rail is installed in the pressure container body (1), the moving block (14) is provided with a circular arc (15) installed by screws, the two circular arcs (15) form a circle, the bottom of the right rod (7) and the left rod (8) is provided with a sealing cylinder (17), the sealing cylinder (17) is of syringe type design, and the sealing cylinder (17) is connected to the right rod (7) and the left rod (8) via an axis; the cylinder (10) is provided with a buffer rod (19) installed by screws, the buffer rod (19) is of [design, the top of the buffer rod (19) The movable rod (16) is connected to the piston rod via screws, the movable rod (16) is designed in an inverted cone shape, the upper part of the movable rod (16) is located at the bottom of the pressure relief pipe (3), and the top of the movable rod (16) is connected to the seesaw (5), and the bottom of the movable rod (16) is in contact with the arc (15); a sealing plate (24) is provided in the sealing cylinder (17), the sealing plate (24) is located behind the piston rod, and the sealing plate (24) is connected via a pulling rod (25); a threaded screw (18) is provided on the sealing cylinder (17), the screw (18) enters the sealing cylinder (17), and the other end of the screw (18) passes through the pressure vessel body (1) and extends above the pressure vessel body (1);The screw rod (18) is provided with a threaded connection sleeve (26), the sleeve (26) is located inside the sealing cylinder (17), one side of the sleeve (26) is provided with an integrally formed fixing block (27), the fixing block (27) is connected to the pulling rod (25) via the shaft, the pulling rod (25) is connected to the fixing ear on the sealing plate (24) via the shaft, and a screw-mounted limiting rod (28) is provided below the screw rod (18). ; 2. A pressure relief valve for a pressure vessel according to claim 1, characterized in that: The seesaw (5) is provided with a chute (21), in which a round ball (20) is installed. The round ball (20) in the seesaw (5) can move freely but will not slide out of the chute (21).
3. A pressure relief valve for a pressure vessel according to claim 1, characterized in that: A pressure column (30) mounted by screws is provided at the bottom of the seesaw (5) away from the moving rod (16). The bottom of the pressure column (30) is made of conductive material. The pressure column (30) is connected to the neutral line by a wire. A fixed box (29) is provided below the seesaw (5). A spring (31) mounted by screws is provided in the fixed box (29). A conductive column (32) is installed in the spring (31). The conductive column (32) is connected to a buzzer via a wire. The live wire is connected to the buzzer. The buzzer is mounted in the fixed box (29) by screws.
Citation Information
Patent Citations
Bypass jerk type pressure relief mechanism, and desulfurization, denitrification and dust removal equipment thereof
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Gas pipeline precision valve body with leak-proof function
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