變壓整流器說明書翻譯-中英對照
系統(tǒng)共有四組電位控制變壓整流器，在滿功率的電壓和電流時，在廠址環(huán)境溫度為40℃時空冷。
2.3.2.2鍍鉑鈦陽極
陽極為2.0m或3.0m、直徑12mm的鍍5μm厚度鉑保護(hù)層的鈦棒。在電流40安培（3.0m長）或20安培（2.0m長）時的正常設(shè)計使用壽命為15年。每個陽極裝在UPVC導(dǎo)管內(nèi)為陽極提供機(jī)械保護(hù)。每個陽極帶有15m長的車間內(nèi)連接好的25mm2電纜，終端在一個地面上的聯(lián)箱內(nèi)。
2.3.2.3參考電極
參考電極是高純度鋅 （99.9%），用固定在取水口水室墻壁上的UPVC導(dǎo)管保護(hù)。參考電極電纜聯(lián)結(jié)到參考電極接線箱中。
2.3.2.4陽極/參考電極聯(lián)箱
接線箱置于接地的鍍鋅支撐框架上，接線箱框架表面噴涂聚酯涂料。
2.3.3 加氯框
2.3.3.1 概述
加氯框為焊接鋼板結(jié)構(gòu)，設(shè)置在閘門導(dǎo)槽內(nèi)。升降鋼絲繩牽引加氯框在側(cè)向?qū)Р蹪L輪和導(dǎo)向塊的定位下在導(dǎo)槽中升降�？蚣苌蠋в邢蚝Ｋ⑸渎人畤娮欤⑸涔苈返慕K端為一段軟管和接頭�？蚣艿脑O(shè)計和U型架厚度的選擇要易于在閘門導(dǎo)槽垂直方向上的安裝。
框架、加氯噴嘴、管道均為不銹鋼，管外徑不小于76.1mm，每隔0.50m有一個凸臺。
運行時，框架浸沒在海水中。加氯管內(nèi)最大水流速度為lm/s，最大壓力為2bar。加氯管道中次氯酸鈉最大濃度為2000ppm，經(jīng)過加氯框后海水中次氯酸鈉的濃度為1ppm。
2.3.3.2 設(shè)備規(guī)格
b） 泵房進(jìn)水渠處加氯框
加氯框數(shù)量: 16（每機(jī)組8個）
寬度: 5.5m*
高度: 4.5m*
管道尺寸: 80mm*
軟管長度:
2.3.3.3 工程的材料
框架結(jié)構(gòu): 不銹鋼316L
管道: 不銹鋼316
2.3.3.4 保護(hù)
框架在制造完工后進(jìn)行酸洗和浸透鈍化處理，并涂耐海水腐蝕的防腐涂料。
2.3.4 總體控制原則
2.3.4.1 總體控制要求
a） 通過中央控制室啟動和停止鼓形濾網(wǎng)及其沖洗設(shè)備，鋼繩牽引式格柵除污機(jī)及其他設(shè)備的啟停通過就地控制盤進(jìn)行，重要的報警和指示信號根據(jù)需要送到中央控制室；
b） 由柴油發(fā)電機(jī)組作為鼓形濾網(wǎng)低速電機(jī)及沖洗設(shè)備的的備用電源；
c） 在喪失儀表用氣源時，循環(huán)水過濾系統(tǒng)可以保持運行。在出現(xiàn)控制電源故障時，電廠及設(shè)備的安全不受影響；
d） 中央控制室不可用時，由遠(yuǎn)程停堆站執(zhí)行其安全功能。
2.3.4.2 控制原則
a） 鋼絲繩牽引固定式格柵除污機(jī)
鋼絲繩牽引固定式格柵除污機(jī)可以在自動或手動模式下工作，自動工作模式時：
1） 當(dāng)兩個鋼繩牽引式格柵除污機(jī)進(jìn)出口差壓均小于0.12米水柱時，除污機(jī)由定時電路控制；
2） 當(dāng)兩個鋼繩牽引式格柵除污機(jī)進(jìn)出口差壓有一個達(dá)到0.12米水柱時，啟動除污機(jī)進(jìn)行清污。
3） 當(dāng)兩個鋼繩牽引式格柵除污機(jī)進(jìn)出口差壓有一個達(dá)到0.25米水柱時，向主控時發(fā)出報警信號
b） 鼓形濾網(wǎng)
鼓形濾網(wǎng)的自動控制包括：
1） 3組差壓探測器信號閾值均小于0.1m水柱時，鼓形濾網(wǎng)切換到低速運行；
2） 3組差壓探測器信號閾值中有一個大于0.1m水柱時，鼓形濾網(wǎng)切換到中速運行；
3） 3組差壓探測器信號閾值中有兩個大于0.2m水柱時，鼓形濾網(wǎng)切換到高速運行；
4） 3組差壓探測器信號閾值中有兩個大于0.3m水柱時，向主控室發(fā)出第一次報警信號；
5） 3組差壓探測器信號閾值中有2個大于0.8m水柱時，送向主控室發(fā)出第二次報警信號。
當(dāng)鼓形濾網(wǎng)的速度下降時，為了不損壞設(shè)備，低速電機(jī)就要維持在一個恰當(dāng)?shù)乃俣戎怠?br />
c） 鼓形濾網(wǎng)的沖洗
沖洗水泵及鼓形濾網(wǎng)在中央控制室手動控制，必須提供同一列泵與泵、泵與鼓形濾網(wǎng)之間的連鎖，泵跳閘時相應(yīng)所在列的鼓形濾網(wǎng)也要停止運行。
2.3.2.1. Transformer rectifier
The system has four groups of electric potential control transformer rectifier. When the voltage and electric current is in the full power, implement the air cooling process in event that the environment temperature reach 40℃.
2.3.2.2 Platinum and titanium plated anode
The anode shall the titanium bar with the platinum coating of 5μm. The anode is 2.0m or 3.0m in length and the diameter is about 12mm. The normal design service life shall be 15 years when the electric current is about 40 amperes (3.0m) or 20 amperes (2.0). Each anode is located in UPVC pipe offering mechanical protection for electrode. Each anode connected with a 15m and 25mm2 cable which processed in the workshop. The terminal is in the joint case on the ground.
2.3.2.3 Reference electrodes
The materials of reference electrodes apply the high purity zinc (99.9%), which used protect with UPVC pipe fixed on water chamber wall of the water intake. Reference electrode cable is connected with the junction box of reference electrodes.
2.3.2.4 Anodes / joint case of reference electrode
The junction box is located on the earth zinc-plated supporting frame. The frame surface of junction box is sprayed with polyester coating.
2.3.3 Chlorination frame
2.3.3.1 Summary
The chlorination frame is welded stencil plate structure which located in the guide groove of gate. Hoisting steel wire rope hauls the hoisting process of chlorination frame under the positioning of guide groove roller and guide block. A chlorine water spray nozzle for injecting is sea water arranged on the frame. The end of injecting pipeline is one section of hoses and connects. The design of the frame and choice of the thickness of Model U shelf shall be easy to the installation of gate guide groove in the vertical direction.
The frame, chlorination spray nozzle and pipeline shall apply the stainless steel. The external diameter of pipeline shall not be smaller than 76.1mm and have one protruding platform every 0.50m.
During operation process, the frame is submerged in the sea water. The maximum speed of rivers is about lm/s in the chlorination pipeline. The maximum pressure is about 2bar. And the maximum density of chloric acid sodium is about 2000ppm in the chlorination pipeline. The concentration of chloric acid sodium of the sea water after processed from the chlorination frame shall be 1ppm.
2.3.3.2 Equipment specification
b) Chlorination frame of the ditch of pump house
Quantity of chlorination frame: 16 (8 of each unit)
Width: 5.5m*
Highly: 4.5m*
Size of the pipeline: 80mm*
Length of the hose:
2.3.3.3 Material of the project
Frame structure: Stainless steel 316L
Pipeline: Stainless steel is 316
2.3.3.4 Protection
The frame shall subject to the acid-washing and soaking and passivation treatment after the completion of manufacturing and it is required to apply the antiseptic coating for sea water corrosion.
2.3.4 Overall principles of controlling
2.3.4.1 Overall requirements of controlling
a) Start and stop a drum shape strainer and the washing process of equipments through the central control room. Start and stop of steel rope traction grid spotter is controlled through the local control panel. The important alarm and instruction signal shall send to the central control room according to the requirement;
b) Diesel generator set shall be arranged as the emergency power source of the drum shape strainer low-speed electrical machinery and washing equipments;
c) When the gas source instrument is unavailable, the circulating water filtering system may maintain operation. The security of the power plant and equipment is not influenced in case of failure of control supply;
d) When the central control room is unavailable, the remote shutdown station shall implement the security function.
2.3.4.2 Controlling principle
a) Steel wire ropes traction fixed grid and spotter
The steel wire ropes traction fixed grid spotter may operate under the automatic or manual mode. In automatic operating mode:
1) When pressure difference of the inlet and outlet of two steel wire ropes traction fixed grid spotter are smaller than 0.12 meters of water columns, spotter is controlled by the timing circuit;
2) When one of pressure difference of the inlet and outlet of two steel wire ropes traction fixed grid spotter reach 0.12 meters of water columns, spotter is started for cleaning process.
3) When one of pressure difference of the inlet and outlet of two steel wire ropes traction fixed grid spotter are smaller than 0.25 meters of water columns, send out the alarm signal to main control room.
b) Drum shape strainer
The automatic control of the drum shape strainer includes:
1) When the signal threshold value of 3 groups of pressure difference detector are all smaller than 0.1m water column, the drum shape strainer is switched to operate at a low speed;
2) When one signal threshold value of 3 groups of pressure difference detector is greater than 0.1m water column, the drum shape strainer is switched to operate at moderate speed;
3) When two signal threshold value of 3 groups of pressure difference detectors are greater than 0.2m water column, the drum shape strainer is switched to operate at high speed;
4) When two signal threshold values of 3 groups of pressure difference detectors are greater than 0.3m water column, send out the first alarm signal to the main control room;
5) When two signal threshold values of 3 groups of pressure difference detectors are greater than 0.8m water column, send out the second alarm signal to the main control room;
When the speeds of the drum shape strainer drops, for not to damage the equipment, the low-speed motor shall maintain an appropriate speed.
c) Washing process of drum shape strainer
Wash the water pump and drum shape strainer are under the manual control of the central control room. It is required to provide the leakage between the pumps of same series, and pump and drum shape strainer. The corresponding drum shape strainer shall shut down as well when the pump trips.
2013.6.14