單元槽的電解車間起重機(jī)-中英對照

至關(guān)重要的是，提供電解車間起重機(jī)是用來將組裝好的Nestpat單元槽從組裝區(qū)域吊裝到固定的BICHLORTM電解槽框架內(nèi)的。起重機(jī)可能還需要用于吊裝電極的預(yù)包裝貨箱和其他裝置到工作樓層。

起重機(jī)，以及任何相關(guān)的起重橫梁應(yīng)當(dāng)這樣設(shè)定，當(dāng)?shù)跹b一個(gè)單元槽時(shí)，被吊裝單元槽的頂部和電解槽的頂部之間的距離至少要一點(diǎn)六米。

6.3 監(jiān)測和維護(hù)BICHLORTM電解槽的通道

在BICHLORTM電解槽周邊的以下位置需要永久通道用以一系列的監(jiān)測和維護(hù)活動(dòng)：

1.  沿著每一個(gè)BICHLORTM分框架的兩邊的全長。這是用以維修活動(dòng)的 – 從分框架的總管處斷開和重新連接活動(dòng)的橡皮軟管，和由單元槽的卸載/替換所引起的分框架分?jǐn)�。這個(gè)通道同樣需要用在對于單元槽電壓的監(jiān)測和電解槽的排水軟管的目視檢查。
2. 到電解槽的尾端張力螺釘?shù)乃�在處的通道也是需要的，用來在維修時(shí)打開和關(guān)上分框架。
 
 
7. 在設(shè)計(jì)時(shí)需要考慮的安全、健康和環(huán)境（SHE）問題

有許許多多有關(guān)于安全，健康或者環(huán)境的重要問題必須在設(shè)計(jì)時(shí)加以充分的考慮。他們包括：

1. 有毒氣體的排放
  
電解槽產(chǎn)生的氯氣是一種有毒氣體。系統(tǒng)必須到位以保護(hù)工廠的工人和泄漏處以及其他泄漏的氯氣以外的人群。必須提供足夠的洗滌系統(tǒng)用以去除連續(xù)不斷的工廠緊急出風(fēng)口處的氯氣。

2. 易燃的危險(xiǎn) – 火災(zāi)和爆炸

電解槽中產(chǎn)生的氫可以和大氣中的空氣或者電解槽中產(chǎn)生的氯氣相結(jié)合，產(chǎn)生易燃性混合物。 這很可能在設(shè)備的內(nèi)部或者工廠設(shè)備周圍的大氣中發(fā)生。在設(shè)計(jì)時(shí)必須集中注意力于電解槽的內(nèi)部和外部以及下游工廠的易燃的危險(xiǎn)。

此外，也可能存在有一單個(gè)的Nestpak單元槽，包含了一個(gè)嚴(yán)重?fù)p壞的離子膜，在極化的條件下產(chǎn)生氫氧混合物，其中氫的濃度高于最低可燃限度的可能性。這將很快在氣體的總管處被從其他單元槽來的惰性氣體流和氣體流所稀釋，使其混合物還原成得非可燃性的。強(qiáng)烈的紫外線對于從電解槽引出的半透明的排水軟管中的可燃混合物來說，是一種潛在的點(diǎn)火源。為了消除這種點(diǎn)火源，將所有的排水軟管都屏蔽陽光的直接照射就至關(guān)重要了。在掩蓋下安裝電解槽就是實(shí)現(xiàn)它的一個(gè)很簡單的方法。

3. 電氣危險(xiǎn)
 
在電解槽中的高電壓和高電流的使用對于在電解車間中工作的工廠工人來說，是一種潛在的危險(xiǎn)。設(shè)備的設(shè)計(jì)應(yīng)該盡量減少工廠工人所承擔(dān)的風(fēng)險(xiǎn)。我們需要特別關(guān)注鋼結(jié)構(gòu)的絕緣和工廠工人與暴露在現(xiàn)場的電氣管理員之間的潛在的交互作用。對工作在電解槽上或者工作在其周圍的工人來說，穿著合適的安全制服（絕緣靴和絕緣手套）是很重要的。

我們同樣需要集中注意力于在電解車間內(nèi)的吊裝操作的設(shè)計(jì)，因?yàn)橥ㄟ^現(xiàn)場電氣管理員與大型項(xiàng)目中的正在吊裝的金屬設(shè)備（例如，電解槽）之間的接觸，可能會(huì)導(dǎo)致電子的短路。

6.2 Cellroom Crane for Nestpak Modules

It is essential that a cellroom crane is provided to lift the assembled Nestpak

modules from the assembly area into the fixed BICHLORTM Electrolyser frames. The crane

is possibly also needed for lifting pre-packaged crates of electrodes and fittings to

the working floor.

The crane, and any associated lifting beam, should be set up such that, when lifting a

module, the distance between the top of the lifted module and the top of the

Electrolyser is at least 1.6 metres.

6.3 Access to BICHLORTM Electrolyser for Monitoring and Maintenance

Permanent access is required to the following locations around BICHLORTM Electrolysers

for a range of monitoring and maintenance activities:

1. Along the full length of both sides of every BICHLORTM pack. This is for

maintenance activities -  disconnecting and reconnecting flexible hoses from pack

headers, and pack splitting for module removal / replacement. This access is also

needed for monitoring of module voltages and visual inspection of Electrolyser offtake

hoses.
2. Access to the end of the Electrolyser where the tensioning screws are located

is required, for opening and closing the pack during maintenance. 
 
 
7. Safety, Health and Environment (SHE) Issues to be Considered in Design

There are a number of important issues relating to safety, health or environment, that

must be adequately considered by in design. These include:

1. Toxic Gas Emissions
  
The Electrolysers produce gaseous chlorine, a toxic gas. Systems must be put in place

to protect plant personnel and offsite population from leaks and other emissions of

chlorine.  Adequate scrubbing systems must be provided to remove chlorine from

continuous and emergency plant vents.  

2. Flammable Hazards - Fire and Explosion

Hydrogen produced in the Electrolysers can combine with air from the atmosphere or

chlorine produced in Electrolysers, to produce flammable mixtures. Potentially this

can take place within equipment or in the atmosphere surrounding plant equipment.

Attention must be given in design to flammable hazards in and around the Electrolyser

and the downstream plant.

There also exists the possibility of a single Nestpak module, containing a badly

damaged membrane, producing a mixture of hydrogen in oxygen during polarisation

conditions, that has a hydrogen concentration above the lower flammable limit. This

will soon be diluted in gas headers, by the inerts flow and gas flow from other

modules, to render the mixture non flammable. Powerful UV light is a potential

ignition source for the flammable mixture in the translucent offtake hoses from the

Electrolyser. To eliminate this ignition source it is essential that all the offtake

hoses are shielded from direct sunlight. Installation of the Electrolysers under cover

is a simple way of achieving this.

3. Electrical Hazards
 
The use of high voltages and high currents in electrolysis, is a potential hazard to

plant personnel working in the cellroom. Equipment should be designed to minimise the

risks to plant personnel. Special attention should be given to insulating steelwork,

and to the potential interaction between personnel and exposed live electrical

conductors. Wearing of appropriate safety clothing (dielectric boots and gloves) is

essential for personnel working on or around Electrolysers.

Attention should also be given to the design of lifting operations in the cellroom, as

it is possible to cause electrical shorts through contacting live electrical

conductors with large items of metallic equipment (e.g. Electrolysers) that are being

lifted.

2014.8.13