管道内壁化学清洗施工标准

管道内壁化学清洗施工标准

初版

1997年5月

This Standard specification covers the minimum requirements for Internal Chemical Cleaning of Piping Systems on upstream side of process machineries and lube oil/seal oil systems for which removal of rust, mill scale, grease and foreign matters is essential.

D-887 "Practice for Sampling Water-Formed Deposits"

The following terms used hereinafter shall be understood to mean:

A person who shall be appointed from time to time by the Company to exercise the functions entrusted to him under the contract and whose appointment has been notified by the Company in writing to the executor.

4.1 The Executor shall furnish all equipment and materials such as pumps, filters, chemicals, piping, hoses etc. and provide technical personnel and labor to supervise and perform the job.

4.2 The Executor shall be responsible for the disconnection of any piping from equipment, if required, prior to cleaning.

4.3 The Executor shall be responsible for the removal of items such as valves with trim which would be attacked by the cleaning agents.

4.4 All work shall be coordinated with and executed under the direction of the Engineer. The Executor shall consult the Engineer prior to mobilization and seek his advice on adequacy of preparation activities before performing the work.

4.5 The Executor shall be responsible for the removal and proper and lawful disposal of all chemicals used for cleaning from working area and its surrounding without any cost incurring to the Company and to the satisfaction of the Engineer. The Executor shall not dispose acids, spent acids or other chemical cleaning agents into existing drainage systems. 

清除工艺设备上游管线系统及润滑油/密封油系统中的铁锈、锈鳞、油脂和杂质是非常必要的，本标准涵盖了对这类管线系统进行内部化学清洗的最小低要求。

D－887“水基沉积物取样方法”

此后用到的下述术语意思为：

公司不时指定的行使合同所赋于职权的人，其任命应由公司以书面形式通知执行者。

4.1　执行者应提供诸如泵、过滤器、化学品、管道系统、软管等所有设备与物料，并提供人员与劳动力监督并完成工作。

4.2　必要时，执行者负责在清洗前从设备上断开管线。

4.3　执行者负责按序移走阀门等可能会受清洗器损伤的部件。

4.4　所有工作应在工程师指导下协调与执行。执行者在动员前应咨询工程师并其关于动工前完善准备活动的建议。

4.5　执行者负责从作业区及其周围将清洗用化学品移走，做合法、适当的处置，并符合工程师检验要求，公司不负担由此任何由此产生的费用。执行者不得将酸、废酸或其它化学清洗剂弃置于现有排水系统中。

5. {0>CLEANING PROCEDURE<}0{>清洗工序<0}

{0>5.1 Normal Cleaning<}0{>普通清洗<0}

{0>Prior to chemical cleaning operation, normal cleaning shall be performed by flushing and/or mechanical means, as applicable.<}0{>化学清洗前，应先用冲洗及/或机械清洗方式进行普通清洗。<0}

{0>5.2 Chemical Cleaning<}56{>化学清洗<0}

{0>All piping indicated on the drawing or otherwise specified shall be chemically cleaned in accordance with this Standard s