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Safety operation requirements for gas blind valve

Safety operation requirements for gas blind valve

  • Categories:Industry News
  • Author:
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  • Time of issue:2021-10-28
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(Summary description)The electric power switch setting for the actual operation of the blind valve should be as far as possible to eliminate the blind valve.

Safety operation requirements for gas blind valve

(Summary description)The electric power switch setting for the actual operation of the blind valve should be as far as possible to eliminate the blind valve.

  • Categories:Industry News
  • Author:
  • Origin:
  • Time of issue:2021-10-28
  • Views:0
Information

1. Operation process

1. The electric power switch setting for the actual operation of the blind valve should be as far as possible to eliminate the blind valve. The staff should stand in the dominant direction during actual operation and observe the dynamics of the surrounding environment;

2. The actual operation of all power switches of the blind plate valve must be filled out, and the actual operation license of the liquefied gas equipment must be applied for. The next step of actual operation can be carried out after the operation process is gradually reviewed and the safety is confirmed on the spot;

3. There are no less than two staff who actually operate the blind valve. They must be certified to work, communicate and communicate with the left and right in advance, and check the air breathing apparatus, combustible gas detection and alarm system, communication equipment, etc. before work. The safety is dexterous and reasonable. Always wear air breathing apparatus, full-time personnel for actual operation and monitoring; high-altitude operations application for high-altitude operations permits, staff wear safety belts, high-hanging low-use;

4. The person responsible for the work before the actual operation of the blind valve should check the embrittlement and damage deformation level of the blind valve sealing ring. If it is found to be damaged, it will be disassembled and replaced immediately, and the actual operation can be carried out after the disassembly and replacement are intact;

5. The monitoring personnel during the operation of the blind valve should set a warning line to eliminate flammable and explosive objects on the spot. Irrelevant workers are prohibited from entering and performing other work in the actual operation area.

2. In actual operation

1. The actual operating staff must understand the safety operating procedures for this position, and determine the position of the gate valve power switch when actually operating the butterfly valve or blind valve to prevent actual operation in the opposite direction;

2. Before actually operating the blind valve, completely loosen its clamping device, and then position the valve plate in time. It is forbidden to actually operate the valve plate before the clamping device is completely loosened;

3. In the actual operation section of the blind valve, no one should stand alone. When manually operating the blind valve, in order to prevent the valve plate from being dragged at will, the valve plate must be fixed before loosening the blind valve clamping device. After the clamping device is completely loosened, take the opportunity to actually operate the valve plate in time;

4. The butterfly valve and the blind plate valve should be equipped with chain franchise safety devices. If the butterfly valve is not closed in time, the blind valve cannot be operated in practice; the production base does not currently have chain franchise equipment or the disc valve cannot be closed before the blind valve. When actually operating the blind valve, you can first open the relief valve between the two valves to lower the blood pressure, and then operate the blind valve according to the leakage situation to prevent the liquefied gas from falling around if the working pressure is too high.

3. After actual operation

1. After the actual operation of the blind valve is completed, the electrolysis normal should be stopped, listed on the market, and the power switch control cabinet should be locked to prevent operational errors;

2. After the actual operation of the blind plate valve is completed, it is necessary to check whether the flange is leaking to prevent the power switch from being turned off tightly and gas leakage and causing safety accidents.

Four, others

1. The actual operation blind valve should be allocated in the daytime as much as possible to prevent the actual operation of the gas leakage at night. It is not easy to detect; if the actual operation at night is necessary for maintenance, it is necessary to ensure that the lighting fixtures are good, and the distance between the projector and the actual operation area is 10 meters. , The root line management personnel or full-time security personnel will be on site to give unified command, and set up staff to monitor;

2. If the electric power switch of the blind valve does not work, you must wear an air respirator when you actually operate the blind valve manually, and special tools such as wrenches and pipe wrenches for work must be explosion-proof to ensure that they can be trusted;

3. The actual operation of the blind valve is as far as possible without liquefied gas. First, close the butterfly valve in front of the valve and open the valve before performing the actual operation;

4. In order to solve the emergency situation in the blind valve operation process, each enterprise must formulate a key emergency management plan for the actual valve operation failure, when the valve fails, the wrong operation, the abnormal external diffusion of liquefied gas or other emergence occurs In the event of an accident, it is guaranteed that it can be dealt with immediately and reasonably.

Liquefied gas blind valve safety practical operation regulations learning training

1. Use the production base production safety WeChat platform account to publish the "Safety Operation Requirements for Blind Gas Blind Valves" for employees to learn and train conveniently.

2. Institutional boiler workers, electric welders, equipment maintenance workers, master regulators, full-time safety officers, production and manufacturing team leaders, electrical equipment leaders, and machine equipment leaders learn and train "Gas Blind Valve Safety Operation Requirements" and discuss and discuss the content Recorded in the safety education account.

3. Institutional boiler workers, electric welders, equipment maintenance workers, master regulators, full-time safety officers, production and manufacturing team leaders, persons in charge of electrical equipment, and persons in charge of machinery and equipment conduct an examination of the actual operation regulations of the safety of the liquefied gas blind valve.

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