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Safe Ups and Downs for Process Units-化工裝置的安全開停車

轉(zhuǎn)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. 

在開車之前,應(yīng)按已經(jīng)編制好的程序進(jìn)行試驗(yàn)。必須確定是否所有試驗(yàn)均已經(jīng)完成。在試驗(yàn)過程中和試驗(yàn)后,都應(yīng)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(yīng)撤出裝置運(yùn)行區(qū)。

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(yīng)對爐膛進(jìn)行檢查,并將所有殘留物都清除出去。未拆除停車盲板及未安裝運(yùn)行盲板都會(huì)造成嚴(yán)重故障和破壞。開車程序規(guī)定了拆除盲板和安裝運(yùn)行盲板的規(guī)定時(shí)間,必須遵守規(guī)定的時(shí)間。應(yīng)將盲板明細(xì)表作為開車程序的一部分包括進(jìn)去,每次拆除和安裝盲板,都應(yīng)由主管人員做記錄并簽字確認(rèn)(見圖17)。如果忽略了一塊盲板,就可能要浪費(fèi)很多時(shí)間和工作,并可能會(huì)造成危害,尤其是在開車的關(guān)鍵時(shí)刻,將會(huì)不得不采取補(bǔ)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(xì)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(rèn)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“停車程序”的F節(jié)中已經(jīng)規(guī)定了開車過程中應(yīng)遵守的,拆除和安裝盲板的安全作業(yè)規(guī)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)常從外觀和憑“感覺”來判定閥門是關(guān)閉還是打開的。關(guān)鍵閥門應(yīng)核實(shí)閥門位置及可操作性。極為重要的一點(diǎn)是,應(yīng)在開車前對關(guān)鍵儀表、報(bào)警器和自動(dòng)停車裝置實(shí)施檢查,以確認(rèn)其是否可靠。