Jichai gas-fired generator set is widely used as emergency standby power supply for telecommunications, hospitals, campuses, financial parts, commerce and other parts, industrial and mining enterprises and residences, and independent power supply for special purposes such as military and field operations, vehicles and ships. So when is the most suitable time to open its electric heating function in the application of diesel generator set?

為避免燃?xì)獍l(fā)電機(jī)組因?yàn)椴裼投氯?，無(wú)法疾速進(jìn)入作業(yè)狀況，通常在室外溫度低于5攝氏度。是（對(duì)準(zhǔn)0號(hào)柴油），敞開(kāi)燃?xì)獍l(fā)電機(jī)組的電加熱功能。

In order to prevent the gas generator set from entering the operation condition quickly due to diesel blockage, the outdoor temperature is usually lower than 5 ℃. Yes (align with No. 0 diesel), turn on the electric heating function of the gas generator set.

燃?xì)獍l(fā)電機(jī)組電加熱功能及維護(hù)方法

Electric heating function and maintenance method of gas generator set

燃?xì)獍l(fā)電機(jī)組作為市電和UPS的后備電源，需求保證其隨時(shí)可用。因?yàn)槿細(xì)庵泻幸欢康南?，在冬天氣溫較低的時(shí)分，這些蠟會(huì)逐步分出，乃至致使柴油凝結(jié)無(wú)法活動(dòng)。當(dāng)柴油分出的蠟開(kāi)端堵塞濾清器然后影響油路的正常供油時(shí)，此刻的溫度稱為柴油的冷慮點(diǎn)。

As the backup power supply of municipal power and UPS, the gas generator set needs to be available at any time. Because the fuel gas contains a certain amount of wax, these wax will gradually separate out when the temperature is low in winter, and even make the diesel oil unable to condense. When the wax separated from diesel starts to block the filter and then affect the normal oil supply of the oil circuit, the temperature at this moment is called the cold filter point of diesel.

以0號(hào)柴油為例，其凝結(jié)點(diǎn)為0攝氏度，冷濾點(diǎn)為4攝氏度。通常在室外溫度低于5攝氏度時(shí)，敞開(kāi)電加熱功用，使得柴油的狀況抱負(fù)，可隨時(shí)投入作業(yè)。電加熱會(huì)耗費(fèi)一定量的電能，因而，應(yīng)注意在恰當(dāng)?shù)臏囟瘸ㄩ_(kāi)這一功用。例如，當(dāng)溫度遠(yuǎn)高于所運(yùn)用柴油的冷濾點(diǎn)時(shí)，不該敞開(kāi)這一功用。

Taking No. 0 diesel as an example, its condensation point is 0 ° C and its cold filter point is 4 ° C. Usually, when the outdoor temperature is lower than 5 ℃, the electric heating function is turned on, so that the condition of diesel is ideal and can be put into operation at any time. Electric heating will consume a certain amount of electric energy. Therefore, attention should be paid to opening this function at an appropriate temperature. For example, this function should not be turned on when the temperature is much higher than the cold filter point of the diesel used.

總的來(lái)說(shuō)，在恰當(dāng)?shù)臏囟瘸ㄩ_(kāi)電加熱功用，可以使燃?xì)獍l(fā)電機(jī)組隨時(shí)投入作業(yè)。

In general, opening the electric heating function at an appropriate temperature can make the gas generator set put into operation efficiently at any time.

目前濟(jì)柴燃?xì)獍l(fā)電機(jī)組于以下維護(hù)方法：

At present, jichai gas generator set is limited to the following maintenance methods:

1、對(duì)柴油發(fā)電機(jī)組的四漏現(xiàn)象、表面、啟動(dòng)電池、機(jī)油和燃油等的檢查；

1. Check the four leakage phenomenon, surface, starting battery, engine oil and fuel oil of diesel generator set;

2、清潔改善機(jī)房環(huán)境，定期更換三濾；

2. Clean and improve the environment of the machine room, and replace the three filters regularly;

3、每月進(jìn)行空載，每半年進(jìn)行加載試機(jī)等方面維護(hù)；

3. Carry out no-load maintenance every month and load test every half a year;

4、使用電源監(jiān)控進(jìn)行實(shí)時(shí)觀測(cè)電質(zhì)量參數(shù)。

4. Use power monitoring to observe power quality parameters in real time.

5、現(xiàn)有維護(hù)手段局限性：

5. Limitations of existing maintenance methods:

現(xiàn)有維護(hù)中的加載測(cè)試也只是對(duì)后端現(xiàn)有用電設(shè)備的帶載測(cè)試，存在一定風(fēng)險(xiǎn)，并且功率較低；

The load test in the existing maintenance is only the load test of the back-end existing electrical equipment, which has certain risks and low power;

更換三濾或經(jīng)過(guò)大修沒(méi)有科學(xué)依據(jù)；

There is no scientific basis for replacing the third filter or overhaul;

更換三濾或經(jīng)過(guò)大修后，沒(méi)有專門負(fù)載進(jìn)行加載試機(jī)，不清楚是否能達(dá)到預(yù)期目的；

After replacing the third filter or overhaul, there is no special load for load test run, and it is unclear whether the expected purpose can be achieved;

空載試機(jī)和小功率帶載產(chǎn)生的大量積碳。

Large amount of carbon deposit generated by no-load test run and low-power load.

燃?xì)獍l(fā)電機(jī)組在小負(fù)荷下運(yùn)行，隨著運(yùn)行時(shí)間的延續(xù)，會(huì)出現(xiàn)以下故障：

When the gas generator unit operates under small load, the following faults will occur with the extension of operation time:

1、對(duì)于增壓式柴機(jī)組，由于低載、空載，增壓壓力低，容易導(dǎo)致增壓器油封（非接觸式）的密封效果下降。

1. For supercharged diesel units, due to low load, no-load and low pressurization pressure, it is easy to reduce the sealing effect of supercharger oil seal (non-contact type).

2、增壓器的增壓室內(nèi)機(jī)油積聚到一定程度，就會(huì)從增壓器的結(jié)合面處滲漏出。

2. When the oil in the supercharger accumulates to a certain extent, it will leak from the joint surface of the supercharger.

3、上竄至汽缸的一部分機(jī)油參與燃燒，一部分機(jī)油不能完全燃燒，在氣門、進(jìn)氣道、活塞頂、活塞環(huán)等處形成積炭，還有一部分則隨排氣排出。這樣，汽缸套排氣道內(nèi)就會(huì)逐步積聚機(jī)油，也會(huì)形成積炭。

3. Part of the engine oil flowing up to the cylinder is involved in combustion, part of the engine oil can not be completely burned, and carbon deposits are formed at the valves, inlet ports, piston crown, piston rings, etc., and some are discharged with the exhaust. In this way, engine oil will gradually accumulate in the exhaust passage of cylinder liner, and carbon will also be formed.

4、長(zhǎng)期小負(fù)荷運(yùn)行，還會(huì)更嚴(yán)重的導(dǎo)致運(yùn)動(dòng)部件磨損加劇，發(fā)動(dòng)機(jī)燃燒環(huán)境惡化等導(dǎo)致大修期提前的后果。

4. Long term low load operation will also lead to more serious consequences such as increased wear of moving parts and deterioration of engine combustion environment, leading to the advance of overhaul period.

因此，柴機(jī)組制造廠商無(wú)論對(duì)自然吸氣型還是增壓機(jī)型的使用都強(qiáng)調(diào)應(yīng)盡量減少低載/空載運(yùn)行時(shí)間，并規(guī)定更小負(fù)荷不能低于機(jī)組額定功率的25%—30%。

Therefore, the manufacturer of diesel generator set emphasizes to minimize the low load / no-load operation time regardless of the use of naturally aspirated or pressurized models, and stipulates that the minimum load shall not be less than 25% - 30% of the rated power of the unit.

燃?xì)獍l(fā)電機(jī)組長(zhǎng)時(shí)間滿載運(yùn)行，不但可以提高本身性能，找出安全隱患，還可以避免重大的事故。

Long time full load operation of gas generator can not only improve its performance, find out potential safety hazards, but also avoid major accidents.

目前，市場(chǎng)上對(duì)燃?xì)獍l(fā)電機(jī)的的維保是指損壞維修和日常保養(yǎng)兩個(gè)方面：維修是指燃?xì)獍l(fā)電機(jī)產(chǎn)生故障后，針對(duì)所出現(xiàn)的故障進(jìn)行更換各種配件等手段或是對(duì)燃?xì)獍l(fā)電機(jī)進(jìn)行大修，清除機(jī)組內(nèi)的積炭等；保養(yǎng)方面的主要從定期的換三濾來(lái)保證機(jī)組的各種性能指標(biāo)良好。

At present, the maintenance of gas-fired generators in the market refers to damage maintenance and daily maintenance: maintenance refers to the replacement of various accessories and other means for the failure of gas-fired generators after the failure of gas-fired generators, or the overhaul of gas-fired generators and the removal of carbon deposits in the units; In terms of maintenance, we mainly change the three filters regularly to ensure the good performance indexes of the unit.