天然氣發(fā)電機組啟動(dòng)前后要注意哪些?
一、天然氣發(fā)電機組啟動(dòng)前的準備:?jiǎn)?dòng)前先檢查調整好整個(gè)機組的狀況,各個(gè)組件的連接及固定須無(wú)誤,發(fā)動(dòng)機的冷卻水系,電啟動(dòng)系統都連接穩定,不滴漏、不松脫,開(kāi)關(guān)靈活,潤滑系良好,燃氣供給系以及點(diǎn)火系都確認正常,否則要檢修、調整正確方可啟動(dòng)。
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(dòng)后的怠速運行:準備正常后,打開(kāi)燃氣閥門(mén),接上啟動(dòng)電源,打開(kāi)鑰匙,按下按鈕,-可啟動(dòng)機組。當機組啟動(dòng)后,注意機油壓力表,有正常的機油壓力,萬(wàn)萬(wàn)不可粗心大意。啟動(dòng)后要怠速運行一段時(shí)間,一是用以觀(guān)察各處、各部件的運行情況是否異常,有無(wú)異常聲響,有問(wèn)題處理、解決。怠速運轉也是用來(lái)使機器升溫,冬季,這升溫很重要,將利于機器的使用。
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、正常的負載輸出:當經(jīng)怠速觀(guān)察,且機組已達到了溫度(觀(guān)察水溫表即可)就可以操縱電調“油門(mén)”將機組升速到標定的工作轉速,調整機組的電壓和頻率都達到標定值,則可向外界合閘,輸出負載。為了合閘時(shí)外界有負載使用,建議合閘前交將空車(chē)的轉速(頻率)稍稍偏高些。負載變化時(shí),注意調速“油門(mén)”手柄,即電子調速器的電位器,適應輸出,使得電壓和頻率的穩定。
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)電機組機房應遠離明火區域;
1. Natural gas generator room should be far away from open fire area;
2、機房應寬敞、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)電機組安裝時(shí)底盤(pán)與地基應用平墊鐵找平。接觸面積應在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、室內安裝照明、開(kāi)關(guān)、線(xiàn)路及其電器應采用防爆措施,且固定牢;
4. Indoor installation of lighting, switches, lines and electrical appliances should adopt explosion-proof measures and be fixed firmly;
5、機房?jì)葢舷酪?,配備滅火器等消防器械?/div>
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)電機組機房?jì)劝惭b可燃氣體報警裝置,可燃氣體泄露時(shí)能及時(shí)發(fā)現;
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以下單臺燃氣發(fā)動(dòng)機燃氣管路的外部主要管道內徑應不小于2吋,靠近發(fā)動(dòng)機的部分內徑應不小于1吋!60kw以上燃氣發(fā)電機組則分別是3吋和兩吋。且須安裝燃氣閥門(mén)(不銹鋼球閥)、型放水閥、防回火裝置,燃氣管路焊接完成應清理焊渣(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、燃氣須脫硫、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)電機組冷卻水須用軟化水。
9. The cooling water of generator set must be softened water.
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