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Safe Ups and Downs for Process Units-化工裝置的安全開(kāi)停車(chē)

轉載。

Tests should be made in accordance with a procedure prepared prior to the startup. It must be determined that all testing has been satisfactorily completed. Pumps and piping should be inspected during and following these tests. 

在開(kāi)車(chē)之前,應按已經(jīng)編制好的程序進(jìn)行試驗。必須確定是否所有試驗均已經(jīng)完成。在試驗過(guò)程中和試驗后,都應對泵和管道進(jìn)行檢查。

Scaffolding materials, tools and surplus materials should be removed from the operating area. 

腳手架材料、工具和剩余材料,都應撤出裝置運行區。

Furnace fireboxes should be inspected and all debris removed from them.

Failure to remove shutdown blinds and failure to install running blinds can cause serious upsets and damage. The startup procedure, giving the prescribed time for removal of shutdown blinds and the installation of running blinds, must be followed. A blind list should be included as a part of the startup procedure, and each removal or insertion of a blind should be noted and initialed by the operator in charge (Figure 17). If a blind is overlooked, much time and work may be wasted and hazardous conditions may be created, especially if the correction has to be made at a critical time in the startup. If blinds are reinstalled after having been removed and signed out, this must be noted on the blind list. No blind may be installed or removed without permission from the operators. 

應對爐膛進(jìn)行檢查,并將所有殘留物都清除出去。未拆除停車(chē)盲板及未安裝運行盲板都會(huì )造成嚴重故障和破壞。開(kāi)車(chē)程序規定了拆除盲板和安裝運行盲板的規定時(shí)間,必須遵守規定的時(shí)間。應將盲板明細表作為開(kāi)車(chē)程序的一部分包括進(jìn)去,每次拆除和安裝盲板,都應由主管人員做記錄并簽字確認(見(jiàn)圖17)。如果忽略了一塊盲板,就可能要浪費很多時(shí)間和工作,并可能會(huì )造成危害,尤其是在開(kāi)車(chē)的關(guān)鍵時(shí)刻,將會(huì )不得不采取補救措施。如果在已經(jīng)拆除和簽字后重新安裝盲板,則必須記錄在盲板明細表上。未經(jīng)操作人員許可,不得安裝和拆除盲板。

圖片

Figure 17: Records are important to make sure blinds are installed and removed. 

17:做好記錄對于確認盲板的安裝與拆除是很重要的。

The safety practices specified for removing and installing blinds in Section F of "Shutdown Procedures" should also be followed during startup. 
在“停車(chē)程序”的F節中已經(jīng)規定了開(kāi)車(chē)過(guò)程中應遵守的,拆除和安裝盲板的安全作業(yè)規程。
Operators frequently assume a valve is closed or open because of its appearance or "feel." Critical valves should be broken loose to verify the valve position and operability. It is extremely important that critical instruments and alarms and automatic shutdown devices be checked out prior to startup to be certain that they are reliable. 
操作人員經(jīng)常從外觀(guān)和憑“感覺(jué)”來(lái)判定閥門(mén)是關(guān)閉還是打開(kāi)的。關(guān)鍵閥門(mén)應核實(shí)閥門(mén)位置及可操作性。極為重要的一點(diǎn)是,應在開(kāi)車(chē)前對關(guān)鍵儀表、報警器和自動(dòng)停車(chē)裝置實(shí)施檢查,以確認其是否可靠。