煤气设施吹扫置换作业方案

煤气设施吹扫置换作业方案
英文回答：
Purging and Inerting Operations for Gas Facilities.
Purpose.
The purpose of this procedure is to establish uniform requirements for purging and inerting operations performed on gas facilities to ensure safety and protection of assets.
Scope.
This procedure applies to all purging and inerting operations conducted on gas facilities, including pipelines, storage tanks, and process equipment.
Responsibilities.
The Plant Manager is responsible for ensuring that all
purging and inerting operations are conducted in accordance with this procedure.
The Safety Supervisor is responsible for monitoring
all purging and inerting operations to ensure compliance with this procedure.
The Gas Control Operator is responsible for executing all purging and inerting operations in accordance with this procedure.
Procedures.
Purging.
Purging is the process of removing air or other undesirable gases from a system using a suitable inert gas.
1. Establish a safe work area around the purging location.
2. Isolate the system to be purged from all sources of
air or other undesirable gases.
3. Connect a source of inert gas to the system.
4. Open the purge valve and allow the inert gas to flow through the system at a sufficient rate to ensure complete purging.
5. Monitor the purge process to ensure that the desired oxygen concentration or other specified levels are achieved.
6. Once the desired conditions are met, seal off the system from the inert gas source.
Inerting.
Inerting is the process of maintaining a system in an inert state by continuously supplying inert gas to the system.
1. Establish a safe work area around the inerting location.
2. Isolate the system to be inerted from all sources of air or other undesirable gases.
3. Connect a source of inert gas to the system.
4. Open the inerting valve and adjust the flow rate to maintain the desired oxygen concentration or other
specified levels.
5. Monitor the inerting process to ensure that the desired conditions are maintained.
6. Continue inerting until the required work is completed.
Safety Precautions.
Only trained and authorized personnel may perform purging and inerting operations.
All purging and inerting operations must be conducted
in accordance with the facility's safety plan.
Appropriate personal protective equipment must be worn during purging and inerting operations.
Warning signs must be posted around the purging and inerting locations.
Adequate ventilation must be provided during purging and inerting operations.
Flammable materials must be kept away from purging and inerting locations.
Documentation.
All purging and inerting operations must be documented, including the following information:
Date and time of the operation.
Location of the operation.
System being purged or inerted.
Type of inert gas used.
Flow rate of the inert gas.
Duration of the operation.
Oxygen concentration or other specified levels achieved.
Name of the person performing the operation.
Name of the person authorizing the operation.
Emergency Procedures.
In the event of an emergency during a purging or inerting operation, follow the following procedures:
1. Stop the flow of inert gas.
2. Evacuate the area.
3. Notify the Plant Manager.
4. Contact emergency services if necessary.
中文回答：
煤气设施吹扫置换作业方案。

目的。

本程序旨在建立煤气设施吹扫置换作业的统一要求，以确保安全和资产保护。

范围。

本程序适用于煤气设施（包括管道、储罐和工艺设备）上进行的所有吹扫和置换作业。

责任。

厂长负责确保所有吹扫和置换作业均按照本程序进行。

安全主管负责监督所有吹扫和置换作业，以确保遵守本程序。

煤气控制操作员负责按照本程序执行所有吹扫和置换作业。

程序。

吹扫。

吹扫是指使用合适的惰性气体从系统中去除空气或其他有害气体的过程。

1. 在吹扫点周围建立一个安全的工作区。

2. 将待吹扫的系统与所有空气或其他有害气体的来源隔离开。

3. 将一个惰性气体源连接到系统。

4. 打开吹扫阀门并让惰性气体以足够快的速度流经系统，以确保完全吹扫。

5. 监控吹扫过程，以确保达到所需的氧气浓度或其他指定水平。

6. 达到所需条件后，将系统与惰性气体源密封。

置换。

置换是通过持续向系统供应惰性气体来维持系统处于惰性状态
的过程。

1. 在置换点周围建立一个安全的工作区。

2. 将待置换的系统与所有空气或其他有害气体的来源隔离开。

3. 将一个惰性气体源连接到系统。

4. 打开置换阀门并调整流速，以保持所需的氧气浓度或其他指
定水平。

5. 监控置换过程，以确保所需条件得到保持。

6. 继续置换，直至完成所需工作。

安全预防措施。

仅经过培训和授权的人员才能执行吹扫和置换作业。

所有吹扫和置换作业必须按照设施的安全计划进行。

在吹扫和置换作业期间必须穿戴合适的个人防护装备。

吹扫和置换点周围必须贴有警告标志。

吹扫和置换作业期间必须提供足够的通风。

易燃材料必须远离吹扫和置换点。

文件记录。

必须记录所有吹扫和置换作业，包括以下信息：
作业日期和时间。

作业地点。

被吹扫或置换的系统。

所用的惰性气体类型。

惰性气体的流速。

作业持续时间。

达到所需的氧气浓度或其他指定水平。

执行操作人员的姓名。

授权操作人员的姓名。

应急程序。

在吹扫或置换作业期间发生紧急情况时，遵循以下程序：
1. 停止惰性气体的流动。

2. 疏散该区域。

3. 通知厂长。

4. 必要时联系应急服务。