電解車間的設(shè)計(jì)范圍-中英對(duì)照

電解車間的設(shè)計(jì)范圍和操作條件

電解車間設(shè)計(jì)必須保證在離子膜周期和設(shè)備負(fù)荷所有階段符合說(shuō)明書(shū)中的強(qiáng)制操作條件 （包括正常的操作、開(kāi)車和停車）。這些條件根據(jù)離子

膜壽命和電解車間工作狀態(tài)而改變。

離子膜壽命周期開(kāi)始采用較高供給溫度。由于離子膜壽命的原因，在規(guī)定負(fù)荷范圍內(nèi)，增加電壓將導(dǎo)致電解槽內(nèi)產(chǎn)生巨大的熱能，因此要求降

低供給溫度。而且，離子膜的使用壽命是由于過(guò)高和過(guò)低的負(fù)荷決定的，必須遵循電解車間里工藝設(shè)計(jì)全部操作條件、設(shè)備尺寸和流程控制系

統(tǒng)的規(guī)定。

設(shè)備設(shè)計(jì)人必須考慮全部項(xiàng)目設(shè)計(jì)條件對(duì)關(guān)鍵設(shè)備的影響。

流程設(shè)計(jì)考慮
鹽水進(jìn)料系統(tǒng)

供給鹽水主要工藝設(shè)計(jì)特征，在電解槽加滿和沖洗停車要求中作出定義正如3.2.3章節(jié)中的描述。本章節(jié)內(nèi)容對(duì)這些規(guī)定和其它額外要求進(jìn)行了

闡述。
對(duì)于全部的選擇方案而言，重要的是提供鹽水進(jìn)料低流量跳閘裝置，整流器斷開(kāi)以防止陽(yáng)極液室的鹽水水位下降操作而造成的組件損壞。由于

短期流量控制可造成干擾，在低流量故障時(shí)候保留60秒的斷開(kāi)延遲，防止不必要的跳閘。

電解槽停車時(shí)，電解槽的鹽水進(jìn)料必須灌滿，保持完整的進(jìn)料流程。電解槽的灌滿流程有兩項(xiàng)可接受選項(xiàng)提供：

1.由一個(gè)專用的壓力槽提供。
2.由一個(gè)帶鹽水進(jìn)料槽的預(yù)留容器，通過(guò)一個(gè)完整的泵送系統(tǒng)提供。

以上兩例中，電解槽鹽水進(jìn)料的灌滿流程通過(guò)緊急啟動(dòng)/停車閥門控制，而不受鹽水供給流量控制閥控制。

隨后的灌滿流程十分重要，電解槽經(jīng)過(guò)鹽水沖洗（流量相當(dāng)于至少一個(gè)電解槽陽(yáng)極液容量），從而除去殘余的氯氣。供應(yīng)的沖洗鹽水需要具有

較高的完整性，可采用下列3種方式之一提供：

1.從灌滿流程使用的同一壓力槽中提供，增加壓力槽容量，以便能提供兩種進(jìn)料方式。
2.從供給鹽水槽里的預(yù)留容器中提供，鹽水槽中要求具有較低的水位警報(bào)，以便在警報(bào)水位有足夠的容積沖洗全部電解槽。提供一個(gè)可靠抽水

系統(tǒng)，包括2個(gè)鹽水進(jìn)料泵，要求裝備有備用電源。
3.裝備有沖洗和灌滿鹽水進(jìn)料槽。防止低水位跳閘，保證鹽水灌滿留出足夠的容積。泵送系統(tǒng)必須具有極高的完整性，可以進(jìn)行沖洗和灌滿作

業(yè)。

對(duì)于所有的選擇而言，在長(zhǎng)期停車極化條件期間，必須保證對(duì)電解槽裝滿和沖洗流程提供鹽水，同時(shí)保證在排水之前進(jìn)行電解槽的強(qiáng)制冷卻操

作。要求至少安裝二臺(tái)鹽水供給泵。
Electrolytic workshop design scope and operating conditions
Design must guarantee in ionic membrane electrolysis workshop cycle and equipment load stage all conform to the specifications of mandatory operating conditions (including normal operation, driving and parking). These conditions according to the ion
Film life and electrolytic workshop working state.
High ionic membrane life cycle started using supply temperature. Because of ionic membrane life, within the scope of the specified load, increase the voltage will lead to huge heat generated in the electrolytic cell so requires
Low supply temperature. Moreover, the service life of ionic membrane is due to too high and too low load, must follow the electrolysis workshop process design in all operating conditions, the size of the equipment and process control system
The provisions of the system.
Equipment the designer must consider all project design conditions on the influence of key equipment.
Process design consideration
salt water feeding system
Supply brine process design features, mainly in electrolytic cell fill and flushing the parking requirements been defined as described in section 3.2.3. This chapter content of these regulations and other additional requirements
In this paper.
For all of the options, it is important to provide low feed brine flow tripping device, rectifier to disconnect in order to prevent the anolyte chamber of saline water level drop operation caused by the damage of components. Due to the
Short-term traffic control can cause interference in low flow fault reserve the trip delay in 60 seconds, prevent unnecessary trip.
Parking electrolytic cell, cell feed brine must fill up, maintain a complete feed process. Electrolytic tank filling process has two acceptable options provide:
(1) is provided by a dedicated pressure tank.
 By a feed trough with brine reserve container, through a complete system of pumping.
Both cases the electrolytic tank brine feeding filling process through the emergency start/stop valve control, and there is no salt water supply flow control valve control.
Subsequent filling process is very important, electrolytic cell by saline irrigation (liquid flow is equivalent to at least one cell anodes capacity), so as to remove residual chlorine. Supply needs to be washing brine
High integrity, can use one of the following three ways:
1. From the fill process USES the same pressure tank, tank capacity increase pressure, so as to provide two feeding way.
2. On the supply of salt reserve container provided in the tank, salt in the sink with low water level alarm, in order to have sufficient volume of water in the alarm flush all the electrolytic cell. To provide a reliable water pumping
System, including two salt water feed pump, equipped with backup power.
3. Equipped with washing and filling of salt water feed tank. To prevent the low water level tripping, ensure the brine fill enough volume. The pumping system must have high integrity, washing and filling can be made
Industry.
For all options, during the long-term parking polarization condition, must make the pledge that we shall provide the brine of electrolyzer with and flushing process, at the same time guarantee for forced cooling of electrolyzer fuck before drainage
Make it. Requires at least two salt water supply pump installation.

2014.8.29