Pressure relief protection device

Abstract

The utility model relates to the technical field of pressure relief, in particular to a pressure relief protection device which comprises a tank body, a pressure relief pipeline, a pressure relief valve and a pressure relief protection mechanism, the pressure relief pipeline is connected with the tank body, the pressure relief valve is arranged on the pressure relief pipeline, the pressure relief valve is connected with the tank body through the pressure relief protection mechanism, and the pressure relief protection mechanism is arranged on the pressure relief pipeline. The pressure relief protection device solves the problem of how to further protect the pressure relief valve and prevent pressure relief accidents.

Description

Technical Field

[0001] This utility model relates to the field of pressure relief technology, specifically to a pressure relief protection device. Background Technology

[0002] In industrial production, reaction vessels are frequently used. However, pressure often builds up inside these vessels during operation. If the internal pressure exceeds the upper limit, it can lead to a serious safety accident such as the vessel bursting. Therefore, when the internal pressure reaches a certain level, it is necessary to depressurize the vessel. This is usually done through a pressure relief pipeline and a pressure relief valve. However, there is no further protection for the pressure relief valve, which may result in a pressure relief accident.

[0003] In view of the above-mentioned defects, the creator of this utility model has finally obtained this utility model after a long period of research and practice. Utility Model Content

[0004] The purpose of this invention is to solve the problem of how to further protect the pressure relief valve and prevent pressure relief accidents, and to provide a pressure relief protection device.

[0005] To achieve the above objectives, this utility model discloses a pressure relief protection device, including a tank, a pressure relief pipeline, a pressure relief valve, and a pressure relief protection mechanism. The pressure relief pipeline is connected to the tank, the pressure relief valve is located on the pressure relief pipeline, and the pressure relief valve is connected to the tank through the pressure relief protection mechanism.

[0006] The pressure relief protection mechanism includes a fixed frame, a limiting clamp, a limiting rod, and a locking screw. The fixed frame is located on one side of the pressure relief valve and is fixedly connected to the pressure relief valve. The limiting clamp is located on the pressure relief valve to clamp the pressure relief valve. One end of the limiting rod is connected to the limiting clamp, and the other end passes through the fixed frame. The side wall of the fixed frame is provided with a threaded hole for the locking screw to be inserted.

[0007] The fixing frame is provided with a baffle, and a channel is formed between the baffle and the side wall of the fixing frame for the limiting rod to pass through. After the locking screw is tightened, one end of the screw passing through the threaded hole clamps and locks the limiting rod with the baffle.

[0008] A limiting plate is provided at the end of the limiting rod that passes through one end of the fixing frame.

[0009] The tank body is provided with a lid, and the tank body and the lid are provided with symmetrical locking plates. The locking plates are provided with threaded holes through which the locking screw can pass. The locking screw passes through the locking plate and is connected to the fixing frame.

[0010] The can lid is equipped with multiple lid latches.

[0011] The limiting clamp is a U-shaped limiting clamp.

[0012] Compared with the prior art, the advantages of this utility model are as follows: This utility model sets a pressure relief protection mechanism between the manual pressure relief valve and the tank body. Before pressure relief, the screw rod needs to be removed from the connection between the tank body and the tank cover before the valve can be turned to perform the pressure relief operation, which improves the safety of the pressure relief valve. At the same time, the pressure relief protection mechanism also prevents the pressure relief valve from being opened due to accidental contact or misoperation, thus preventing pressure relief accidents. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0015] Figure 3 This is a schematic diagram of the connection at the mounting bracket.

[0016] The numbers in the diagram represent:

[0017] 1-Tank body; 2-Pressure relief pipeline; 3-Pressure relief valve; 4-Pressure relief protection mechanism; 41-Fixing frame; 42-Limit clamp; 43-Limit rod; 44-Locking screw; 45-Baffle; 46-Limit plate; 5-Tank cover; 6-Locking plate; 7-Tank cover latch. Detailed Implementation

[0018] The above-mentioned and other technical features and advantages of this utility model will be described in more detail below with reference to the accompanying drawings.

[0019] Example 1

[0020] This embodiment provides a pressure relief protection device, including a tank 1, a pressure relief pipeline 2, a pressure relief valve 3, and a pressure relief protection mechanism 4. The pressure relief pipeline 2 is connected to the tank 1, and the pressure relief valve 3 is located on the pressure relief pipeline 2. The pressure relief valve 3 is connected to the tank 1 through the pressure relief protection mechanism 4. Before depressurization, the pressure relief protection mechanism 4 needs to be opened before the pressure relief valve 3 can be rotated to perform the depressurization operation, thus improving the safety of the pressure relief valve.

[0021] The pressure relief protection mechanism 4 includes a fixed frame 41, a limiting clamp 42, a limiting rod 43, and a locking screw 44. The fixed frame 41 is located on one side of the pressure relief valve 3 and is fixedly connected to the pressure relief valve 3. The limiting clamp 42 is located on the pressure relief valve 3 and clamps the pressure relief valve 3. One end of the limiting rod 43 is connected to the limiting clamp 42, and the other end passes through the fixed frame 41. The side wall of the fixed frame 41 is provided with a threaded hole for the locking screw 44 to be inserted.

[0022] The fixing frame 41 is provided with a baffle 45, and a channel is formed between the baffle 45 and the side wall of the fixing frame 41 for the limiting rod 43 to pass through. After the locking screw 44 is locked, one end of the screw passing through the threaded hole clamps and locks the limiting rod 43 with the baffle 45. A limiting plate 46 is provided at the end of the limiting rod 43 that passes through the fixing frame 41. The limiting clamp 42 is a U-shaped limiting clamp.

[0023] Before depressurization, rotating the locking screw 44 releases its clamping and locking of the limiting rod 43, allowing the limiting rod 43 to move along the fixed frame 41. This allows the limiting clamp 42 to move with the pressure relief valve 3, enabling the valve to open. When depressurization is not required, rotating the locking screw 44, together with the baffle 45, clamps and locks the limiting rod 43, restricting the movement of the limiting clamp 42 and limiting the pressure relief valve 3. This prevents accidental opening of the pressure relief valve and prevents operator error. This protective mechanism prevents accidental operation of the pressure relief valve and avoids depressurization accidents.

[0024] Example 2

[0025] Based on Embodiment 1, this embodiment has a can lid 5 on the can body 1, and symmetrical locking plates 6 on the can body 1 and the can lid 5. The locking plates 6 have threaded holes through which the locking screw 44 can pass. The locking screw 44 passes through the locking plates 6 and is connected to the fixing frame 41. The can lid 6 has multiple can lid latches 7.

[0026] Typically, a pressure relief operation is required before opening the can lid 6. To prevent operators from forgetting to perform the pressure relief operation before opening the can lid 6, the locking screw 44 is connected to the can body and the can lid 6. When pressure relief is needed, the locking screw 44 is rotated to remove it from the fixing bracket 41 and the locking plate 6 before the pressure relief operation can be performed. At the same time, the can lid 6 can also be opened after opening the can lid lock 7. This structure can remind operators to perform the pressure relief operation and avoid pressure relief accidents.

[0027] The above description is merely a preferred embodiment of the present utility model and is illustrative rather than restrictive. Those skilled in the art will understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of the present utility model, all of which will fall within the protection scope of the present utility model.

Claims

1. A pressure relief protection device, characterized in that, It includes a tank body, a pressure relief pipeline, a pressure relief valve, and a pressure relief protection mechanism. The pressure relief pipeline is connected to the tank body, the pressure relief valve is located on the pressure relief pipeline, and the pressure relief valve is connected to the tank body through the pressure relief protection mechanism. The pressure relief protection mechanism includes a fixed frame, a limiting clamp, a limiting rod, and a locking screw. The fixed frame is located on one side of the pressure relief valve and is fixedly connected to the pressure relief valve. The limiting clamp is located on the pressure relief valve to clamp the pressure relief valve. One end of the limiting rod is connected to the limiting clamp, and the other end passes through the fixed frame. The side wall of the fixed frame is provided with a threaded hole for the locking screw to be inserted.

2. The pressure relief protection device as described in claim 1, characterized in that, The fixing frame is provided with a baffle, and a channel is formed between the baffle and the side wall of the fixing frame for the limiting rod to pass through. After the locking screw is tightened, one end of the screw passing through the threaded hole clamps and locks the limiting rod with the baffle.

3. The pressure relief protection device as described in claim 1, characterized in that, A limiting plate is provided at the end of the limiting rod that passes through one end of the fixing frame.

4. The pressure relief protection device as described in claim 1, characterized in that, The tank body is provided with a lid, and the tank body and the lid are provided with symmetrical locking plates. The locking plates are provided with threaded holes through which the locking screw can pass. The locking screw passes through the locking plate and is connected to the fixing frame.

5. The pressure relief protection device as described in claim 4, characterized in that, The can lid is equipped with multiple lid latches.

6. The pressure relief protection device as described in claim 4, characterized in that, The limiting clamp is a U-shaped limiting clamp.

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