聯(lián)合整流機觸發(fā)跳閘-中英對照

1. 切斷聯(lián)合整流機（針對預留量高位跳閘的整流機，應已經(jīng)關閉）
2. 關閉所有聯(lián)合的電解槽系統(tǒng)中的鹽水進料控制閥門。
3. 對于預留量高位跳閘的電解槽，關閉所有聯(lián)合的電解槽系統(tǒng)中的鹽水添加閥門。對于沒有預留量跳閘的電解槽，鹽水添加閥門不應關閉，因為電解槽中的添加十分重要。
4. 關閉進料側鹽水泵（選擇性），對于沒有預留量跳閘和從進料側鹽水槽添加補料的陽極電解槽而言，泵不應關閉。

5.2.6進料側鹽水槽預留添加量跳閘系統(tǒng)

當預留添加量和注入量包含在專用壓力槽中時，并不對該系統(tǒng)作要求（見第3.2.3節(jié)和第4.1節(jié)），但是當預留添加量存在于進料側鹽水槽中，那該跳閘系統(tǒng)十分重要。它確保了進料側鹽水槽中的液面降至預留量液面高度時，所有聯(lián)合電解槽都會停止運轉，因此確保了電解槽的鹽水添加。（如果預留鹽水注入量也在進料側鹽水槽中，則若發(fā)生槽內(nèi)液面低至預留值時，需要優(yōu)先預警。）

 

閘機輸入信號

1. 低位進料側鹽水槽

將液面設于這一高度可以確保槽中有足量供應所有電解槽的添加。

觸發(fā)跳閘

1. 激活所有聯(lián)合的電解槽低/無流量鹽水跳閘系統(tǒng)，觸發(fā)所有聯(lián)合整流器的跳閘并開啟電解槽的添加。

5.2.7陰極電解槽預留添加量跳閘系統(tǒng)

當預留添加量包含在專用壓力槽中時，并不對該系統(tǒng)作要求（見第3.2.4節(jié)&4.3節(jié)），但是當預留添加量存在于陰極電解槽中，那該跳閘系統(tǒng)十分重要。它確保了陰極電解槽中的液面降至預留量液面高度時，所有聯(lián)合電解槽都會停止運轉，藉此確保電解槽的添加從陰極電解槽中利用的可能性。

閘機輸入信號

1.   低位陰極電解槽

將液面設于這一高度可以確保槽中有足量供應所有電解槽的添加。

觸發(fā)跳閘

1. 激活所有聯(lián)合電解槽低/無流量陰極電解槽跳閘系統(tǒng)，觸發(fā)所有聯(lián)合整流器跳閘，同時啟動電解槽的添加。

5.2.8 電解槽出料側堿液高溫跳閘

設定為92℃來保護下游塑料管道系統(tǒng)
Trip Actions

1. Shuts off associated rectifiers (these should already have been shut off for tank with reserved volume high level trip).
2. Closes brine feed control valves on all associated Electrolyser systems.
3. Closes brine top-up valves on all associated Electrolyser systems for tank with reserved volume high level trip. For tank without reserved volume trip, brine top-up valves should not be closed, as it is essential that Electrolysers are topped up.
4. Switches off feed brine pump (optional). For anolyte tank without reserved volume trip and top-up supply from feed brine tank, pumps should not be switched off.

5.2.6 Feed Brine Tank Reserved Top-up Volume Trip System

This system is not required if the reserved top-up and flush volumes are contained in a dedicated head tank (see sections 3.2.3 & 4.1). However if the reserve top-up volume is to be held in the feed brine tank, then this trip is essential. It ensures that once the level in the feed brine tank falls to the reserved volume level, then all associated Electrolysers are shut-down, thus ensuring the availability of brine to top-up Electrolysers. (If the reserve brine flush volume is also held in the brine feed tank a high priority alarm is required if the tank level falls below this reserve point.)

 

Trip Inputs

1. Low level in feed brine tank

Set at such a level that will ensure sufficient volume is available in the tank for topping-up of all Electrolysers.

Trip Actions

1. Activates all associated Electrolyser low / no flow brine trip systems, thus tripping out all associated rectifiers and initiating top-up of Electrolysers.

5.2.7 Catholyte Tank Reserved Top-Up Volume Trip System

This system is not required if the reserved top-up volume is contained in a dedicated head tank (see sections 3.2.4 & 4.3). However if the reserved top-up volumes is to be held in the catholyte tank, then this trip is essential. It ensures that once the level in the catholyte tank falls to the reserved volume level, then all associated Electrolysers are shut-down, thus ensuring the availability of catholyte top-up of Electrolysers.

Trip Inputs

1.   Low level in catholyte tank

Set at such a level that will ensure sufficient volume is available in the tank for top-up of all Electrolysers.

Trip Actions

1. Activates all associated Electrolyser low / no flow catholyte trip systems, thus tripping out all associated rectifiers and initiating top-up of Electrolysers.

5.2.8 High electrolyser caustic exit temperature trip

Set at 92 deg C to protect downstream plastic pipework systems

2014.8.19