天然氣發(fā)電機(jī)組啟動前后要注意哪些?
一、天然氣發(fā)電機(jī)組啟動前的準(zhǔn)備:啟動前先檢查調(diào)整好整個機(jī)組的狀況,各個組件的連接及固定須無誤,發(fā)動機(jī)的冷卻水系,電啟動系統(tǒng)都連接穩(wěn)定,不滴漏、不松脫,開關(guān)靈活,潤滑系良好,燃?xì)夤┙o系以及點(diǎn)火系都確認(rèn)正常,否則要檢修、調(diào)整正確方可啟動。
1、 Preparation before start-up of natural gas generator set: check and adjust the condition of the whole unit before start-up. The connection and fixation of each component must be correct. The cooling water system of the engine and the electric starting system are connected stably without dripping and loosening. The switch is flexible. The lubrication system is in good condition. The fuel supply system and ignition system are confirmed to be normal. Otherwise, it can be started only after maintenance and adjustment are correct 。
二、啟動后的怠速運(yùn)行:準(zhǔn)備正常后,打開燃?xì)忾y門,接上啟動電源,打開鑰匙,按下按鈕,-可啟動機(jī)組。當(dāng)機(jī)組啟動后,注意機(jī)油壓力表,有正常的機(jī)油壓力,萬萬不可粗心大意。啟動后要怠速運(yùn)行一段時間,一是用以觀察各處、各部件的運(yùn)行情況是否異常,有無異常聲響,有問題處理、解決。怠速運(yùn)轉(zhuǎn)也是用來使機(jī)器升溫,冬季,這升溫很重要,將利于機(jī)器的使用。
2、 Idle running after starting: after preparing for normal operation, open the gas valve, connect the starting power supply, open the key, and press the button, - the unit can be started. When the unit starts, pay attention to the oil pressure gauge, there is normal oil pressure, never be careless. If there is abnormal operation of each part, observe whether there is abnormal operation for a period of time. Idle running is also used to make the machine warm up. In winter, this temperature rise is very important, which will be conducive to the use of the machine.
三、正常的負(fù)載輸出:當(dāng)經(jīng)怠速觀察,且機(jī)組已達(dá)到了溫度(觀察水溫表即可)就可以操縱電調(diào)“油門”將機(jī)組升速到標(biāo)定的工作轉(zhuǎn)速,調(diào)整機(jī)組的電壓和頻率都達(dá)到標(biāo)定值,則可向外界合閘,輸出負(fù)載。為了合閘時外界有負(fù)載使用,建議合閘前交將空車的轉(zhuǎn)速(頻率)稍稍偏高些。負(fù)載變化時,注意調(diào)速“油門”手柄,即電子調(diào)速器的電位器,適應(yīng)輸出,使得電壓和頻率的穩(wěn)定。
3、 Normal load output: when the idle speed is observed and the unit has reached the temperature (just observe the water temperature meter), the electric adjustment "throttle" can be operated to speed up the unit to the rated working speed, and the voltage and frequency of the unit are adjusted to reach the calibration value, then the machine can be switched on to the outside to output the load. In order to use the external load when closing, it is suggested that the speed (frequency) of the empty car be slightly higher before closing. When the load changes, pay attention to the speed control "throttle" handle, that is, the potentiometer of the electronic governor, to adapt to the output, so that the voltage and frequency are stable.
1、天然氣發(fā)電機(jī)組機(jī)房應(yīng)遠(yuǎn)離明火區(qū)域;
1. Natural gas generator room should be far away from open fire area;
2、機(jī)房應(yīng)寬敞、明亮且要求安裝換氣扇以使得良好的通風(fēng);
2. The machine room should be spacious and bright, and the ventilator should be installed to ensure good ventilation;
3、發(fā)電機(jī)組安裝時底盤與地基應(yīng)用平墊鐵找平。接觸面積應(yīng)在60%以上,且分布均勻;
3. When the generator set is installed, the chassis and the foundation shall be leveled with flat pad iron. The contact area should be more than 60% and evenly distributed;
4、室內(nèi)安裝照明、開關(guān)、線路及其電器應(yīng)采用防爆措施,且固定牢;
4. Indoor installation of lighting, switches, lines and electrical appliances should adopt explosion-proof measures and be fixed firmly;
5、機(jī)房內(nèi)應(yīng)符合消防要求,配備滅火器等消防器械;
5. The machine room shall meet the fire fighting requirements and be equipped with fire extinguisher and other fire-fighting equipment;
6、天然氣發(fā)電機(jī)組機(jī)房內(nèi)安裝可燃?xì)怏w報警裝置,可燃?xì)怏w泄露時能及時發(fā)現(xiàn);
6. Combustible gas alarm device is installed in the machine room of natural gas generator set to detect the leakage of combustible gas in time;
7、60kw以下單臺燃?xì)獍l(fā)動機(jī)燃?xì)夤苈返耐獠恐饕艿纼?nèi)徑應(yīng)不小于2吋,靠近發(fā)動機(jī)的部分內(nèi)徑應(yīng)不小于1吋!60kw以上燃?xì)獍l(fā)電機(jī)組則分別是3吋和兩吋。且須安裝燃?xì)忾y門(不銹鋼球閥)、型放水閥、防回火裝置,燃?xì)夤苈泛附油瓿蓱?yīng)清理焊渣(用高壓空氣);
7. The inner diameter of the outer main pipe of the gas pipeline of a single gas engine below 60kW shall not be less than 2 inches, and the inner diameter of the part close to the engine shall not be less than 1 inch! For gas-fired generating units above 60kW, they are 3 inches and 2 inches respectively. Gas valve (stainless steel ball valve), type-I drain valve and anti backfire device shall be installed. Welding slag (with high-pressure air) shall be cleaned after gas pipeline welding;
8、燃?xì)忭毭摿?、脫水、除塵,其中含流量≤0.25Nm3,氫氣≤10%;
8. The gas must be desulphurized, dehydrated and dedusted, with flow rate ≤ 0.25nm3 and hydrogen ≤ 10%;
9、發(fā)電機(jī)組冷卻水須用軟化水。
9. The cooling water of generator set must be softened water.
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