Pressure relief device
The pressure relief device connected by magnet and armature attraction solves the problem that the existing pressure relief device has difficulty in releasing pressure under low pressure, and achieves the effect of large flow relief and simple structure.
Patent Information
- Application Number
- CN202422958950.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-12-02
AI Technical Summary
Existing pressure relief devices are difficult to effectively release pressure in low-pressure environments, and the safety valve structure is complex or the bursting disc cannot be reused.
A pressure relief device is designed, which realizes the rapid opening of the pressure relief port through the attraction connection of magnet and armature. The pressure relief port can be opened under low pressure by utilizing the attraction force of magnet. Welding connection and sealing ring are used to ensure airtightness and large flow discharge.
It achieves high flow rate pressure relief in low pressure environment, has simple structure, is suitable for low pressure occasions, and the magnet is replaceable to adapt to different pressure requirements.
Smart Images
Figure CN223424719U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pressure relief valves, in particular to a pressure relief device. Background Art
[0002] A pressure relief device is a device installed on a sealed container that automatically opens to release internal pressure when the container's internal pressure exceeds the specified limit. Common pressure relief devices include safety valves and bursting discs. These two devices are suitable for applications where the internal pressure of the container is relatively high. However, when the internal pressure of the container is low, or when the normal operating pressure is at atmospheric pressure, they are difficult to effectively release the pressure. Furthermore, there are problems such as the complex structure of the safety valve and the inability to reuse the bursting disc after it has exploded. There is an urgent need for a pressure relief device that can open the pressure relief port at very low pressure and completely release internal pressure at a high flow rate. Utility Model Content
[0003] In order to solve the above problems, the purpose of the present utility model is to provide a pressure relief device.
[0004] To achieve the above-mentioned purpose, the technical solution of the utility model is: a pressure relief device, including a pressure relief port pipe and a pressure relief port flange at one end of the pressure relief port pipe, one side of the pressure relief port flange is connected to a pressure relief port flange cover by a hinge, and one side of the pressure relief port flange cover covers the pressure relief port flange, an armature is fixed to the side of the pressure relief port flange cover opposite to the hinge, and the armature is attracted to a magnet provided on one side of the pressure relief port pipe, so that the pressure relief port flange cover is tightly attached to the end face of the pressure relief port flange.
[0005] Furthermore, the magnet is fixed to the outer end of the magnet mounting seat, and the inner end of the magnet mounting seat is screwed into a threaded tube provided on one side of the magnet mounting seat through a threaded structure.
[0006] Furthermore, the surface of the armature facing the magnet is a spherical surface, and the end of the magnet facing the armature is provided with an inner spherical surface that fits tightly with the armature.
[0007] Furthermore, a sealing ring is embedded in the outer end surface of the pressure relief port flange, and the sealing ring is added between the outer end of the pressure relief port flange and the pressure relief port flange cover.
[0008] Furthermore, the armature is fixed to the inner side surface of an armature fixing plate provided on one side of the pressure relief port flange cover.
[0009] Furthermore, a block structure is fixed to the outer side wall of the pressure relief port flange cover.
[0010] Furthermore, the fixed end of the threaded tube is screwed and fixed on the threaded column of the container shell.
[0011] Furthermore, the pressure relief port pipe and the pressure relief port flange are connected by welding to form an integral body.
[0012] Through the above arrangement, when the utility model is working normally, there is no pressure inside the connected container shell, but it can be sealed. When pressure suddenly appears inside the container shell, it can be quickly opened to release the internal pressure at a large flow rate. The pressure relief device of the utility model has a simple structure and is particularly suitable for low-pressure and high-flow discharge occasions. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The present invention will now be further described with reference to the accompanying drawings.
[0014] Figure 1 This is a schematic diagram of the bottom-up structure of the present invention;
[0015] Figure 2 This is a schematic diagram of the main internal structure of the utility model. DETAILED DESCRIPTION
[0016] like Figure 1-2 As shown, a pressure relief device includes a pressure relief port pipe 1 and a pressure relief port flange 2 at one end of the pressure relief port pipe 1. The pressure relief port pipe 1 and the pressure relief port flange 2 are welded together to form an integral body. One side of the pressure relief port flange 2 is rotatably connected to a pressure relief port flange cover 4 through a hinge 3, and one side of the pressure relief port flange cover 4 covers the pressure relief port flange 2. An armature 5 is fixed to the side of the pressure relief port flange cover 4 opposite to the hinge 3, and the armature 5 is attracted to a magnet 6 provided on one side of the pressure relief port pipe 1, so that the pressure relief port flange cover 4 is tightly attached to the end face of the pressure relief port flange 2.
[0017] Specifically: the magnet 6 is fixed to the outer end of the magnet mounting seat 7, and the inner end of the magnet mounting seat 7 is screwed into the threaded tube 8 set on one side of the magnet mounting seat 7 through a threaded structure. The side of the armature 5 opposite to the magnet 6 is a spherical surface, and the end of the magnet 6 opposite to the armature 5 is provided with an inner spherical surface that fits tightly with the armature 5. The armature 5 is fixed to the inner side surface of the armature fixing plate 10 set on one side of the pressure relief port flange cover 4, and the fixed end of the threaded tube 8 is screwed and fixed on the threaded column of the container shell.
[0018] A sealing ring 9 is embedded in the outer end surface of the pressure relief flange 2 . The sealing ring 9 is added between the outer end of the pressure relief flange 2 and the pressure relief flange cover 4 . A block structure 11 is fixed to the outer side wall of the pressure relief flange cover 4 .
[0019] The working principle of the utility model is as follows: when the equipment is operating normally, the pressure relief port flange cover and the pressure relief port flange are closed, the armature and the magnet are attracted together, when the inside of the shell is suddenly over-pressured, the attraction force of the magnet is exceeded, and the pressure relief port is opened to release the pressure. After the pressure relief port is opened, the pressure relief port is fully open, there is no object blocking the flow, and the discharge flow is large. The magnet 6 is fixed to the outer end of the magnet mounting seat 7, and the whole can be replaced. By changing the size of the magnet, the pressure at which the pressure relief port is opened can be changed.
[0020] The above description is only an illustrative embodiment of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principle of the present invention shall fall within the scope of protection of the present invention.
Claims
1. A pressure relief device comprising a pressure relief port pipe (1) and a pressure relief port flange (2) at one end of the pressure relief port pipe (1), characterized in that: One side of the pressure relief port flange (2) is rotatably connected to a pressure relief port flange cover (4) via a hinge (3), and one side of the pressure relief port flange cover (4) covers the pressure relief port flange (2). An armature (5) is fixed to the side of the pressure relief port flange cover (4) opposite to the hinge (3), and the armature (5) is attracted to a magnet (6) provided on one side of the pressure relief port pipe (1), so that the pressure relief port flange cover (4) is tightly attached to the end face of the pressure relief port flange (2).
2. A pressure relief device according to claim 1, characterized in that: The magnet (6) is fixed to the outer end of the magnet mounting seat (7), and the inner end of the magnet mounting seat (7) is screwed into a threaded tube (8) provided on one side of the magnet mounting seat (7) through a threaded structure.
3. A pressure relief device according to claim 1, characterized in that: The opposite side of the armature (5) and the magnet (6) is a spherical surface, and the opposite end of the magnet (6) and the armature (5) is provided with an inner spherical surface that is tightly fitted with the armature (5).
4. A pressure relief device according to claim 1, characterized in that: A sealing ring (9) is embedded in the outer end surface of the pressure relief port flange (2), and the sealing ring (9) is added between the outer end of the pressure relief port flange (2) and the pressure relief port flange cover (4).
5. A pressure relief device according to claim 1, characterized in that: The armature (5) is fixed to the inner side of an armature fixing plate (10) provided on one side of the pressure relief port flange cover (4).
6. A pressure relief device according to claim 1, characterized in that: A block structure (11) is fixed to the outer side wall of the pressure relief port flange cover (4).
7. A pressure relief device according to claim 2, characterized in that: The fixed end of the threaded tube (8) is screwed and fixed on the threaded column of the container shell.
8. The pressure relief device according to claim 1, characterized in that: The pressure relief port pipe (1) and the pressure relief port flange (2) are connected by welding to form an integral body.