CN201851727U - State detection device for arch-shaped metal rupture disc - Google Patents

Abstract

The utility model belongs to an improvement on an explosion venting device of a metal rupture disc for a gas container, in particular to a state detection device for an arch-shaped metal rupture disc, which comprises an explosion venting valve on which the arch-shaped metal rupture disc is mounted, wherein the top of the body of the explosion venting valve is hinged with a lever bracket through a support, a turning plate made of light metal is fixedly connected with one end of the lever bracket, the turning plate is matched with the arch-shaped metal rupture disc that is mounted at the upper port of the explosion venting valve below the turning plate, one end part of a metal rod that is fixedly connected at one end of the lever bracket is matched with an approach switch, the approach switch is connected with a microcomputer monitoring system through a conducting wire, a balancing weight is arranged at the other end of the lever bracket, and the torque of the balancing weight is set such that the turning plate can be turned up by a gas flow leaked due to the rupture of the arch-shaped metal rupture disc. The state detection device for the arch-shaped metal rupture disc can detect the working states and the specific positions of the explosion venting valve and the arch-shaped metal rupture disc in time, and the rupture of the arch-shaped metal rupture disc for pressure relief can be found in time through the microcomputer monitoring system, so as to handle in time, prevent personal injury accidents and ensure safe production.

Description

Arch metal bursting disc state detection device

technical field

The utility model belongs to the improvement of a metal bursting disc explosion venting device used for toxic, inflammable and explosive gas containers in factories, in particular to an arched metal bursting disc state detection device. the

Background technique

The metal bursting disc explosion venting device used for toxic, flammable and explosive gas containers in the factory, when overpressure fluctuations occur, the microcomputer monitoring system cannot directly display the status of the bursting disc. If the fault is not found in time, an emergency plan will be activated. If the gas medium is released, it may cause safety accidents such as combustion, explosion or gas poisoning. Arched metal rupture discs play a very important role in the safety and production system of the gas system, and are the last line of defense to ensure the safety of equipment. Taking the blast furnace gas dry pulse bag filter as an example, the explosion relief valve is installed on the top of the dust collector, and the arched metal bursting disc is attached to the front end of the explosion relief valve. In the normal production process, when the pressure in the dust collector box rises to the explosion pressure of the explosion relief valve, the arched metal bursting disc will rupture first, and the pressure in the dust collector box will be relieved, so as to control the occurrence of accidents in the local area, so as to ensure the safety of the dust collector. Equipment Security. However, the bursting and pressure relief of arched metal bursting discs is not easy to reflect intuitively. It is necessary to know in more dust collector rooms which explosion relief valve the arched metal bursting disc bursts, delaying the timing and causing a large amount of gas leakage. , which will magnify the accident. the

Contents of the invention

The purpose of this utility model is to provide an arched metal bursting disc state detection device, which can timely and effectively detect the working state and specific position of the arched metal bursting disc of the explosion relief valve. The monitoring system detects and handles in time to prevent personal injury accidents and ensure safe production. the

The purpose of this utility model is achieved in this way: an arched metal bursting disc state detection device includes an explosion relief valve equipped with an arched metal bursting disc, and the lever frame is hinged on the top of the explosion venting valve body through a support, One end of the lever frame is fixed with a flap made of light metal, the flap matches the arched metal bursting disc installed on the upper opening of the explosion relief valve below it, and the end of the metal rod fixed on the lever frame at this end matches with the proximity switch , the proximity switch is connected to the microcomputer monitoring system through wires, and the other end of the lever frame is installed with a counterweight. The size of the moment of the counterweight is suitable for the gas flow leaked by the rupture of the arched metal bursting disc to make the flap upward. the

When the utility model is installed on the toxic, flammable and explosive gas container in the factory, when overpressure occurs, the metal bursting disc on the explosion relief valve will burst, and the leaked gas flow will cause the flap to turn upwards. The end of the metal rod is disengaged from the proximity switch, and the proximity switch transmits the signal to the microcomputer monitoring system through the wire, and sends out an alarm signal. As the computer monitoring system directly displays the bursting of the arched metal rupture disc of the explosion relief valve, the emergency plan is started in time: 

1. Notify the squad leader, operation chief, and coal defense personnel, and notify the downwind of the gas to evacuate.

2. Immediately close the box gas, clean gas inlet and outlet butterfly valves and eye valves of the dust collector room, open the box to vent, and nitrogen purge.

3. More than three people go together, coal-proof monitoring, remove the old explosion-proof membrane, install a new explosion-proof membrane.

4. Open the eye valve of the inlet and outlet of the box of the dust collector, close the box to vent, open the butterfly valve at the inlet and outlet of the box, close the nitrogen purge, and put the box into use.

This shows that this utility model is of great significance to the prevention of personal injury accidents and the rapid recovery of blast furnace production. the

The utility model can timely and effectively detect the working state and specific position of the arch-shaped metal bursting disc of the explosion relief valve. When the metal bursting disc bursts and releases pressure, it can be found in time through the microcomputer monitoring system and processed in time to prevent personal injury accidents and ensure safety. Production. the

Description of drawings

The utility model will be further described below in conjunction with the accompanying drawings,

Fig. 1 is the sectional structural representation of the utility model;

FIG. 2 is a schematic top view of the structure of FIG. 1 .

Detailed ways

An arched metal bursting disc state detection device, as shown in Figure 1 and Figure 2, includes an explosion relief valve 1 equipped with an arched metal bursting disc 2, and a lever is hinged on the top of the explosion relief valve body through a support 3 Frame 4, one end of the lever frame 4 is fixed to a flap 5 made of light metal, the flap 5 is matched with the arched metal bursting disc 2 installed on the upper opening of the explosion relief valve 1 below, and the lever frame 4 at this end is fixed The end of the metal rod 6 cooperates with the proximity switch 7. The proximity switch is connected to the microcomputer monitoring system through wires. The other end of the lever frame 4 is equipped with a counterweight 8. The moment of the counterweight 8 can be broken by the arched metal bursting disc 2. It is advisable that the leaked gas flow can make the flap 5 turn upwards.

Claims (1)

1. arch form metallic rupture disk condition checkout gear, comprise the explosion-released valve (1) that arch form metallic rupture disk (2) are housed, it is characterized in that: the articulated lever bracket of bearing (3) (4) is passed through at the top at the explosion-released valve valve body, one end of lever bracket (4) affixed the turnover panel (5) that constitutes by light metal, turnover panel (5) matches with its below explosion-released valve (1) arch form metallic rupture disk of installing (2) of going up suitable for reading, and this end lever bracket (4) is gone up affixed metallic rod (6) end and is matched near switch (7), connect microcomputer detecting system near switch by lead, the other end of lever bracket (4) is installed with balancing weight (8), the size of balancing weight (8) moment, with arch form metallic rupture disk (2) break the gas flow revealed can make turnover panel (5) upwards upset be advisable.

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