Protection device for flow and pressure regulating valve
By designing the protection device for the pressure relief components and blocking components, the problem of medium leakage in the pneumatic pressure regulator valve during pressure relief is solved, safe pressure relief and medium collection is achieved, economic losses are avoided, and the service life of the equipment is extended.
Patent Information
- Application Number
- CN202420871500.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-25
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-04-25
AI Technical Summary
The protective device of the existing pneumatic pressure regulating valve will cause the inside of the pressure regulating valve body to communicate with the outside world during pressure relief, causing continuous leakage of the medium and causing economic losses.
A protective device including a pressure relief assembly and a blocking assembly is designed, and the pressure relief device is used to relieve pressure by a pressure relief pipe, a sealing plate, a piston plate, a slide rod, a spring and a limiting block. It also promptly notifies the pressure reduction through pressure sensors, contact switches and acoustic and optical alarms, collects leakage media by collecting the container, and protects the outside.
Effectively reserve pressure relief space, reduce internal pressure, avoid damage to the parts of the flow-regulating pressure regulator valve, timely release pressure and collect media, prevent economic losses, and extend the service life of the equipment.
Smart Images
Figure CN222297064U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pressure regulating valves, in particular to a protection device for flow regulating and pressure regulating valves. Background Art
[0002] A pneumatic pressure regulating valve uses compressed gas as a power source, a cylinder as an actuator, and uses accessories such as a valve positioner, a converter, a solenoid valve, a position-holding valve, a gas storage tank, and a gas filter to drive the valve to achieve switching or proportional regulation. The existing pneumatic pressure regulating valve drives the valve core to reciprocate in the vertical direction by the valve stem to achieve switching or proportional regulation of the fluid channel in the valve body. A pneumatic flow regulating and pressure regulating valve protection device disclosed in a Chinese patent announcement with a search number of CN220551548U has the following technical points: it includes a pressure regulating valve body, a pneumatic actuator is installed on the top of the pressure regulating valve body, and a water outlet end is fixedly installed on one side of the bottom of the pressure regulating valve body, and a feed end is fixedly installed on the other side of the bottom of the pressure regulating valve body, and a protection device is fixedly installed at the feed end on the pressure regulating valve body; the protection device includes a connecting pipe, a mounting seat, an overpressure protection component and a fixing ring.
[0003] In actual operation, it was found that the above scheme still has at least the following defects: after the pressure regulating valve body is subjected to huge pressure, the protection device releases the pressure inside the pressure regulating valve body by setting a ruptured fuse plate, but while completing the pressure relief, the interior of the pressure regulating valve body is also connected to the outside world, causing continuous leakage of the medium and bringing economic losses. For this reason, we propose a protection device for a flow regulating and pressure regulating valve to solve the above problem. Utility Model Content
[0004] 1. Technical issues to be resolved
[0005] In view of the deficiencies in the prior art, the utility model provides a protective device for a flow regulating and pressure regulating valve, which solves the problem that while completing the pressure relief, the interior of the pressure regulating valve body is connected to the outside, causing continuous leakage of the medium and bringing economic losses.
[0006] (II) Technical solution
[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a protective device for a flow regulating and pressure regulating valve, comprising a tube body, which is fixedly installed at the feed end of the flow regulating and pressure regulating valve, a flange is fixedly installed at the right end of the tube body, and the right end of the tube body is fixedly connected to the feed pipe through the flange, and a pressure relief component for protecting the flow regulating and pressure regulating valve and a blocking component for cutting off the medium are arranged on the tube body.
[0008] Preferably, the pressure relief assembly includes a pressure relief pipe, a sealing plate, a piston plate, two sliding rods, two first springs and two limit blocks. The pressure relief pipe is fixedly installed at the bottom of the pipe body, the sealing plate is fixedly installed at the bottom end of the pressure relief pipe, the piston plate is slidably installed in the pressure relief pipe, the two sliding rods are fixedly installed at the bottom of the piston plate and are symmetrically distributed, the bottom ends of the two sliding rods slide through the sealing plate, the two first springs are respectively mounted on the two sliding rods, the bottom ends of the two first springs are fixedly connected to the sealing plate, the top ends of the two first springs are fixedly connected to the piston plate, and the two limit blocks are respectively fixedly installed at the bottom ends of the two sliding rods.
[0009] Preferably, a flow guide hole is opened on the pressure relief pipe, and a flow guide pipe is fixedly installed in the flow guide hole.
[0010] Preferably, a collecting bucket is detachably mounted on the pressure relief pipe, and one end of the flow guide pipe away from the pressure relief pipe extends into the collecting bucket.
[0011] Preferably, a pressure sensor is fixedly mounted on the inner wall of the bottom of the tube body, a contact switch is fixedly mounted on the top of the sealing plate, and an audible and visual alarm is fixedly mounted on the top of the tube body.
[0012] Preferably, a protection box surrounding the outside of the flow and pressure regulating valve is fixedly mounted on the tube body, a box cover is rotatably mounted on the protection box, and a handle is fixedly mounted on the box cover.
[0013] (III) Beneficial effects
[0014] The utility model provides a protective device for a flow regulating and pressure regulating valve. It has the following beneficial effects:
[0015] (1) The protective device for a flow regulating and pressure regulating valve can reserve a portion of pressure relief space for the flow regulating and pressure regulating valve by utilizing a pressure relief assembly composed of a pressure relief pipe, a sealing plate, a piston plate, two sliding rods, two springs and two limit blocks. When the valve is suddenly subjected to huge pressure, the medium will push the piston plate away from the pipe body, thereby increasing the internal space of the protective device and reducing the pressure, achieving a pressure relief effect and preventing damage to the internal parts of the flow regulating and pressure regulating valve.
[0016] (2) The protective device for a flow regulating and pressure regulating valve utilizes the combined effect of a flow guide hole and a flow guide tube. When the pressure is large enough, the piston plate can slide through the flow guide hole to discharge the medium in the tube body, thereby relieving the pressure in time to avoid damage to the flow regulating and pressure regulating valve due to excessive pressure. The discharged medium can be collected in a collection bucket to avoid loss of the medium.
[0017] (3) The protective device for the flow regulating and pressure regulating valve can protect the surface of the flow regulating and pressure regulating valve by utilizing the combined effect of the protective box, the box cover and the handle, thereby preventing the flow regulating and pressure regulating valve from being bumped or corroded, and extending the service life of the flow regulating and pressure regulating valve. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the main view of the utility model;
[0020] Figure 3 It is a schematic diagram of the three-dimensional structure of the pressure relief pipe.
[0021] In the figure: 1. pipe body; 2. flange; 3. pressure relief pipe; 4. sealing plate; 5. piston plate; 6. slide rod; 7. spring; 8. limit block; 9. flow guide hole; 10. flow guide pipe; 11. pressure sensor; 12. contact switch; 13. sound and light alarm; 14. collection bucket; 15. protection box; 16. box cover; 17. handle. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] like Figure 1-3As shown, the utility model provides a technical solution: a protection device for a flow regulating and pressure regulating valve, comprising a pipe body 1 fixedly installed at the feed end of the flow regulating and pressure regulating valve, a flange 2 fixedly installed at the right end of the pipe body 1, the pipe body 1 is fixedly connected to the feed pipe through the flange 2, a pressure relief component for protecting the flow regulating and pressure regulating valve is arranged on the pipe body 1, a pressure sensor 11 is fixedly installed on the bottom inner wall of the pipe body 1, it should be noted that a pressure display screen is arranged outside the pipe body 1 or in the central control room to display the real-time pressure inside the pipe body 1, a contact switch 12 is fixedly installed on the top of the sealing plate 4, and an audible and visual alarm 13 is fixedly installed on the top of the pipe body 1. Through the above-mentioned arrangement, the audible and visual alarm 13 can be controlled to operate through the contact switch 12, so as to promptly notify the surrounding personnel that the pressure of the conveying medium is too high and the pressure needs to be reduced in time. It should be noted that the pressure sensor 11, pressure display screen, contact switch 12 and sound and light alarm 13 used in the present technical solution are existing products on the market, which can be purchased on the market or customized in the factory. Their use and connection methods belong to conventional technical means in the prior art field, so they will not be described in detail in this article. A protection box 15 surrounding the outside of the flow regulating and pressure regulating valve is fixedly installed on the tube body 1, and a box cover 16 is rotatably installed on the protection box 15. A handle 17 is fixedly installed on the box cover 16. By using the box cover 16 and the handle 17, the flow regulating and pressure regulating valve can be easily inspected and repaired when needed, and the protection box 15 can be sealed to prevent the flow regulating and pressure regulating valve from being bumped and corroded by the outside. It should be noted that a sealing ring is fixedly installed on the top of the protection box 15 to improve the sealing effect of the protection box 15.
[0024] In this embodiment, the pressure relief assembly includes a pressure relief pipe 3, a sealing plate 4, a piston plate 5, two slide rods 6, two first springs 7 and two limit blocks 8. The pressure relief pipe 3 is fixedly installed at the bottom of the tube body 1, the sealing plate 4 is fixedly installed at the bottom end of the pressure relief pipe 3, the piston plate 5 is slidably installed in the pressure relief pipe 3, the two slide rods 6 are fixedly installed at the bottom of the piston plate 5 and are symmetrically distributed, the bottom ends of the two slide rods 6 slide through the sealing plate 4, the two first springs 7 are respectively sleeved on the two slide rods 6, the bottom ends of the two first springs 7 are fixedly connected to the sealing plate 4, and the two first springs The top ends of the springs 7 are fixedly connected to the piston plates 5, and the two limit blocks 8 are fixedly mounted on the bottom ends of the two slide bars 6 respectively. A guide hole 9 is opened on the pressure relief pipe 3, and a guide pipe 10 is fixedly mounted in the guide hole 9. When the medium pressure is large enough, the medium can be discharged through the guide hole 9 and the guide pipe 10 to reduce the pressure inside the pipe body 1 and the flow and pressure regulating valve. A collecting barrel 14 is detachably mounted on the pressure relief pipe 3, and one end of the guide pipe 10 away from the pressure relief pipe 3 extends into the collecting barrel 14, and the discharged medium can be collected through the collecting barrel 14 to avoid medium loss.
[0025] Through the above structure, a protection device for a flow regulating and pressure regulating valve provided by the utility model can reserve a part of pressure relief space for the flow regulating and pressure regulating valve. When it is suddenly subjected to huge pressure, the medium will push the piston plate 5 away from the tube body 1, thereby increasing the internal space of the protection device and reducing the pressure, achieving a pressure relief effect and avoiding damage to the internal parts of the flow regulating and pressure regulating valve. When the piston plate 5 slides through the guide hole 9, the medium in the tube body 1 is discharged, and the pressure is relieved in time to avoid damage to the flow regulating and pressure regulating valve by excessive pressure, and the discharged medium is collected by the collecting barrel 14 to avoid loss of the medium. The surface of the flow regulating and pressure regulating valve can also be protected to avoid bumps or corrosion of the flow regulating and pressure regulating valve, thereby extending the service life of the flow regulating and pressure regulating valve. When the body is in use, open the valve and control the external delivery pump to start delivering the medium. When the pressure flowing through the flow regulating and pressure regulating valve is too high, the medium starts to push the piston plate 5, and the piston plate 5 starts to move away from the tube body 1 and squeeze the two springs 7, thereby enlarging the internal space of the tube body 1 to reduce the pressure in the tube body 1 and the flow regulating and pressure regulating valve to achieve a protective effect. When the piston plate 5 slides through the guide hole 9, the medium in the tube body 1 is discharged and the pressure is relieved in time. When the piston plate 5 slides through the guide hole 9, the bottom of the piston plate 5 contacts and squeezes the contact switch 12. The contact switch 12 controls the sound and light alarm 13 to start running, reminding the surrounding personnel that the pressure of the conveying medium is too high and timely reducing the power of the conveying medium to avoid accidents.
[0026] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope recorded in the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.
Claims
1. A protective device for a flow regulating and pressure regulating valve, characterized in that: It comprises a pipe body (1) fixedly mounted on the feed end of a flow regulating and pressure regulating valve, a flange (2) fixedly mounted on the right end of the pipe body (1), and a pressure relief component for protecting the flow regulating and pressure regulating valve being arranged on the pipe body (1).
2. A protective device for a flow regulating and pressure regulating valve according to claim 1, characterized in that: The pressure relief assembly comprises a pressure relief pipe (3), a sealing plate (4), a piston plate (5), two sliding rods (6), two first springs (7) and two limit blocks (8); the pressure relief pipe (3) is fixedly mounted at the bottom of the pipe body (1); the sealing plate (4) is fixedly mounted at the bottom end of the pressure relief pipe (3); the piston plate (5) is slidably mounted in the pressure relief pipe (3); the two sliding rods (6) are fixedly mounted at the bottom of the piston plate (5) and are symmetrically distributed; the bottom ends of the two sliding rods (6) slide through the sealing plate (4); the two first springs (7) are respectively sleeved on the two sliding rods (6); the bottom ends of the two first springs (7) are fixedly connected to the sealing plate (4); the top ends of the two first springs (7) are fixedly connected to the piston plate (5); and the two limit blocks (8) are respectively fixedly mounted at the bottom ends of the two sliding rods (6).
3. A protective device for a flow regulating and pressure regulating valve according to claim 2, characterized in that: The pressure relief pipe (3) is provided with a flow guide hole (9), and a flow guide pipe (10) is fixedly installed in the flow guide hole (9).
4. A protective device for a flow regulating and pressure regulating valve according to claim 3, characterized in that: A collecting bucket (14) is detachably mounted on the pressure relief pipe (3), and one end of the flow guide pipe (10) away from the pressure relief pipe (3) extends into the collecting bucket (14).
5. A protective device for a flow regulating and pressure regulating valve according to claim 2, characterized in that: A pressure sensor (11) is fixedly mounted on the inner wall of the bottom of the tube body (1), a contact switch (12) is fixedly mounted on the top of the sealing plate (4), and an audible and visual alarm (13) is fixedly mounted on the top of the tube body (1).
6. A protective device for a flow regulating and pressure regulating valve according to claim 1, characterized in that: A protection box (15) surrounding the outside of the flow and pressure regulating valve is fixedly mounted on the pipe body (1), a box cover (16) is rotatably mounted on the protection box (15), and a handle (17) is fixedly mounted on the box cover (16).