焦化發電機組怠速運轉時，轉速忽快忽慢不穩定。在檢查點火系統沒有故障的情況下，故障可能發生在燃料供給系統、怠速步進電機失控，此時應檢查焦化裝置及電機。

During the idling operation of the coking generator set, the rotating speed is unstable. If there is no fault in the ignition system, the fault may occur in the fuel supply system and the idle stepper motor out of control. At this time, check the coking device and motor.

一：

I:

1)進氣道是否有漏氣現象。

1) Check whether there is air leakage in the air inlet.

2)混合器空燃比調整是否合適。

2) Whether the mixer air-fuel ratio is adjusted properly.

3)混合器閥芯有否卡滯現象。

3) Check whether the mixer valve core is stuck.

4)混合器膜片是否破損漏氣，造成有高速無低速現象。

4) Check whether the mixer diaphragm is damaged and air leaks, causing high-speed and low-speed phenomena.

二：

II:

a、怠速開關不閉合；

a. Idle switch is not closed;

b、怠速控制閥調整不當；

b. Improper adjustment of idle speed control valve;

c、進氣及真空系統有漏氣現象；

c. Air leakage in the air inlet and vacuum system;

d、配氣相位錯誤；

d. Valve timing error;

e、噴油器滴漏或堵塞而工作不良；

e. Poor operation due to dripping or blockage of fuel injector;

f、排氣系統堵塞；

f. The exhaust system is blocked;

g、怠速調節閥有故障或積炭等；

g. Idle speed regulating valve has fault or carbon deposit;

h、點火電路有故障(有火花塞損壞、燒蝕開裂，高壓線漏電，分電器破損，點火線圈工作不良等),活性碳罐堵塞或電磁閥損壞；

h. The ignition circuit is faulty (there are spark plug damage, ablation cracking, high-voltage wire leakage, distributor damage, poor operation of ignition coil, etc.), the activated carbon tank is blocked or the solenoid valve is damaged;

i、曲軸通風閥(PCV)有故障或堵塞；

i. Crankshaft ventilation valve (PCV) is faulty or blocked;

j、怠速混合空然不當；

j. Improper idling mixing;

k、氣門漏氣；

k. Valve leakage;

l、各缸氣缸壓力相差過大；

l. The cylinder pressure difference of each cylinder is too large;

m、點火正時失準；

m. Ignition timing misalignment;

n、電控方面原因：

n. Reasons for electronic control:

(1)、節氣門積炭有臟物或怠速控制閥有故障(堵塞)；

(1) There is dirt on the throttle valve or the idle control valve is faulty (blocked);

(2)、傳感器線路或連接器有故障造成噴油器錯誤調節，這此傳感器主要有氧傳感器(導熱不良、電源接觸不良、頭部有積炭)，進氣溫度傳感器、進氣歧管壓力傳感器(膠管堵塞、擠扁或漏氣)、節氣門位置傳感器；

(2) . faulty sensor circuit or connector causes incorrect adjustment of fuel injector. This sensor mainly includes oxygen sensor (poor heat conduction, poor power contact, carbon deposit on the head), intake air temperature sensor, intake manifold pressure sensor (rubber tube blocked, squashed or leaking), throttle position sensor;

(3)、ECU有故障(如內部線路接觸不良,腐蝕,氧化等)；

(3) ECU has fault (such as poor internal circuit contact, corrosion, oxidation, etc.);

(4)、插頭裝錯(比如把進氣溫度傳感器和怠速控制閥導線連接器插反)；

(4) The plug is installed incorrectly (for example, the wire connectors of the intake air temperature sensor and the idle control valve are inserted reversely);

當前焦化發電機組市場魚龍混雜，市面上甚至存在很多不正規的家庭小作坊，因此采購焦化發電機組去的生產廠家咨詢，包括產品配置和價格，售后服務項目等。關注我們http://m.hdlelisa.com，了解更多注意事項！

At present, the market of coking generating units is mixed, and there are even many informal small family workshops in the market. Therefore, the purchase of coking generating units should go to professional manufacturers for consultation, including product configuration, price and after-sales service items. Follow us http://m.hdlelisa.com Yes, learn more!