Combined pressure relief mechanism for fire prevention of tank field gate valve
By designing a pressure relief mechanism in the gate valve of the tank area, and using a combination of O-rings and pressure relief pipes, the problem of gate valve rupture under high pressure was solved, achieving the effects of fire prevention and cost reduction.
Patent Information
- Application Number
- CN202423161297.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-20
AI Technical Summary
Existing gate valves in tank farms are prone to rupture under excessive pressure, increasing operating costs and affecting performance.
A combined pressure relief mechanism including a valve body, a pressure relief hole, a pressure relief pipe, a check valve, and a discharge pipe was designed. Through the sealing of the O-ring and the setting of the pressure relief pipe, the O-ring is destroyed first to release pressure in the event of a fire, preventing the valve body from breaking. Pressure is then released through the pressure relief pipe and the discharge pipe to achieve the fire protection function.
It effectively prevents the valve body from rupturing under high pressure, reduces the risk of fire, reduces operating costs, and ensures the safety and reliability of gate valves in tank farms.
Smart Images
Figure CN223595034U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to tank area gate valve technical field especially relates to a combination type pressure relief mechanism for tank area gate valve fire prevention. BACKGROUND
[0002] Tank area gate valve is one of the most important valve types at present, belongs to a kind of stop valve, function is to connect or cut off the medium in pipeline, there are two working conditions of complete closure and complete opening, it is widely used in the flow and cut-off of liquid, gas and other media.
[0003] At present, the existing tank area gate valve, in the use process, its rupture may cause valve body when pressure is too large, increase use cost, thereby influence the use effect of tank area gate valve. UTILITY MODEL CONTENT
[0004] The utility model aims at solving the problems of the existing tank area gate valve, in the use process, its rupture may cause valve body when pressure is too large, increase use cost, thereby influence the use effect of tank area gate valve, and provides a combination type pressure relief mechanism for tank area gate valve fire prevention.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:
[0006] A combination type pressure relief mechanism for tank area gate valve fire prevention, including valve body, the valve body is equipped with middle cavity, one side inner wall of middle cavity is equipped with pressure relief hole, and pressure relief pipe is inserted in pressure relief hole, the valve body is equipped with valve plate, and one side of valve plate is fixedly connected with fireproof plug, and the circumferential outer wall of fireproof plug is clamped with O type ring.
[0007] Further, the top end of the valve body is rotatably inserted with a valve stem, and the valve plate is fixed at the bottom end of the valve stem by bolts.
[0008] Further, the other end of the pressure relief pipe is fixedly connected with a check valve.
[0009] Further, the other end of the check valve is fixedly connected with a discharge pipe.
[0010] Further, the inlet end and the outlet end of the valve body are fixedly connected with connecting flanges.
[0011] Further, one end of the connecting flange is provided with a sealing ring.
[0012] The utility model has the advantages of:
[0013] 1. By the setting of O type ring, when fire occurs, O type ring is damaged in priority to valve body, pressure enters middle cavity and then discharges from pressure relief hole, so as to achieve the purpose of fire prevention.
[0014] 2. When the pressure of the middle cavity is too high, the pressure is released outward through the pressure relief pipe, the check valve and the discharge pipe, so as to achieve the fireproof purpose. BRIEF DESCRIPTION OF DRAWINGS
[0015] Fig. 1 A plane section structure schematic view of a combined pressure relief mechanism for fire prevention of a tank area gate valve is provided in the utility model;
[0016] Fig. 2 An A place enlarged structure schematic view of a combined pressure relief mechanism for fire prevention of a tank area gate valve is provided in the utility model;
[0017] Fig. 3 A side view structure schematic view of a combined pressure relief mechanism for fire prevention of a tank area gate valve is provided in the utility model.
[0018] In the drawing: 1, valve body; 2, middle cavity; 3, valve plate; 4, valve rod; 5, fireproof plug; 6, O ring; 7, pressure relief hole; 8, pressure relief pipe; 9, check valve; 10, discharge pipe; 11, connecting flange. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.
[0020] REFERENCE Figs. 1-3 A combined pressure relief mechanism for fire prevention of a tank area gate valve is provided in the utility model, which comprises a valve body 1, the valve body 1 is internally provided with a middle cavity 2, one side inner wall of the middle cavity 2 is provided with a pressure relief hole 7, the pressure relief hole 7 is internally inserted with a pressure relief pipe 8, the valve body 1 is internally provided with a valve plate 3, the top end of the valve body 1 is rotatably inserted with a valve rod 4, the valve plate 3 is fixed at the bottom end of the valve rod 4 through bolts, the valve rod 4 is twisted to drive the valve plate 3 to rotate, so as to realize the opening and closing of the valve body 1, one side of the valve plate 3 is fixed with a fireproof plug 5 through bolts, the circumferential outer wall of the fireproof plug 5 is clamped with an O ring 6, when a fire occurs, the O ring 6 is damaged first than the valve body 1, the pressure enters the middle cavity 2 and then is discharged from the pressure relief hole 7, so as to achieve the fireproof purpose.
[0021] The other end of the pressure relief pipe 8 is fixedly connected with a check valve 9, the other end of the check valve 9 is fixedly connected with a discharge pipe 10, when the pressure of the middle cavity 2 is too high, the pressure is released outward through the pressure relief pipe 8, the check valve 9 and the discharge pipe 10, and there are three kinds of pressure relief modes, one is emptying, two is pressure relief to a pipeline, three is discharged into a container, according to the medium characteristics, so as to achieve the fireproof purpose, the inlet end and the outlet end of the valve body 1 are fixedly connected with connecting flanges 11, so as to facilitate the connection of the valve body 1 and external pipelines, one end of the connecting flange 11 is provided with a sealing ring, so as to seal between the connecting flange 11 and the external pipeline.
[0022] The working principle of the embodiment is as follows: in use, the valve rod 4 drives the valve plate 3 to rotate, so as to open and close the valve body 1, wherein the O-ring 6 is easy to seal, so as to achieve bidirectional sealing; in case of fire, the O-ring 6 is damaged preferentially to the valve body 1, pressure enters the middle cavity 2 and is discharged from the pressure relief hole 7, so as to achieve the purpose of fire prevention; when the pressure of the middle cavity 2 is too high, the pressure is discharged outward through the pressure relief pipe 8, the check valve 9 and the discharge pipe 10, so as to achieve the purpose of fire prevention.
[0023] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.
Claims
1. A combined pressure relief mechanism for fire protection of a gate valve in a tank farm, comprising a valve body (1), characterized in that, The valve body (1) is internally provided with a middle cavity (2), one side inner wall of the middle cavity (2) is provided with a pressure relief hole (7), the pressure relief hole (7) is internally inserted with a pressure relief pipe (8), the valve body (1) is internally provided with a valve plate (3), one side of the valve plate (3) is fixedly connected with a fireproof plug (5), the circumferential outer wall of the fireproof plug (5) is clamped with an O-shaped ring (6).
2. A combined pressure relief mechanism for fire protection of a gate valve in a tank farm according to claim 1, characterized in that The top end of the valve body (1) is rotatably inserted with a valve rod (4), the valve plate (3) is fixed on the bottom end of the valve rod (4) through bolts.
3. A combination pressure relief mechanism for fire protection of a gate valve in a tank farm as defined in claim 1, wherein The other end of the pressure relief pipe (8) is fixedly connected with a check valve (9).
4. A combination pressure relief mechanism for fire protection of a gate valve in a tank farm as defined in claim 3, wherein The other end of the check valve (9) is fixedly connected with a discharge pipe (10).
5. A combination pressure relief mechanism for fire protection of a gate valve in a tank farm as defined in claim 4, wherein, The inlet end and the outlet end of the valve body (1) are fixedly connected with connecting flanges (11).
6. A combination pressure relief mechanism for fire protection of a gate valve in a tank farm as defined in claim 5, wherein, One end of the connecting flange (11) is provided with a sealing ring.