When a fault occurs, pay attention to analyze the cause of the fault from the fault phenomenon, and analyze the structure combined with the principle, from the surface to the inside, easy first and then difficult. The following three problems should be considered first when the fault occurs: (1) what phenomenon appears before the fault occurs?

(2) 故障發(fā)生前進(jìn)行過(guò)哪些保養、檢修工作?

(2) What maintenance and repair work have been carried out before the fault occurs?

(3) 以前是否遇到類(lèi)似的情況? 怎么處理的?另外,當機組允許在運行中判斷問(wèn)題所在時(shí),可在運行中判斷。

(3) Have similar situations been encountered before? How to deal with them? In addition, when the unit is allowed to judge the problem during operation, it can be judged during operation.

例如:機組運行時(shí)若發(fā)現排溫過(guò)高或某一缸排溫突然變化大,應首先在設備運轉狀態(tài)下檢查各缸燃氣調節閥有無(wú)松動(dòng)現象,若排除燃氣調節閥沒(méi)有松動(dòng)后問(wèn)題依然存在,應停機檢查其點(diǎn)火系統如:火花塞和點(diǎn)火線(xiàn)圈等是否存在問(wèn)題;若出現排溫異常,則要區分是單缸還是整體排溫異常,如果是單缸異常,應考慮是不是儀表顯示不正常,可采用測量熱電動(dòng)勢或倒線(xiàn)的方式加以排除;如果是整體異常,應考慮氣體濃度是否發(fā)生了變化或是否存在點(diǎn)火不良。

For example, if the exhaust temperature is too high or the exhaust temperature of a certain cylinder suddenly changes greatly during the operation of the unit, first check whether the gas regulating valve of each cylinder is loose under the operation state of the equipment. If the problem still exists after the gas control valve is ruled out to be not loose, the ignition system, such as spark plug and ignition coil, shall be shut down to check whether there is any problem; if the exhaust temperature is abnormal, It is necessary to distinguish whether the single cylinder or the overall exhaust temperature is abnormal. If the single cylinder is abnormal, whether the instrument display is abnormal should be considered, which can be eliminated by measuring thermoelectric EMF or reversing the line; if it is overall abnormal, whether the gas concentration has changed or whether there is poor ignition should be considered.

排除故障時(shí),當沒(méi)有有效手段查清故障原因時(shí),可以采用置換法。例如當懷疑點(diǎn)火控制器出現故障時(shí),檢查和調整時(shí)需將點(diǎn)火控制器連接到PC 電腦或專(zhuān)用手提編程器上進(jìn)行調整,但基本上維護單位都不會(huì )配置這些檢測設備,這時(shí)就可以把其他備用設備上的點(diǎn)火控制器拆過(guò)來(lái)裝上后開(kāi)機運轉,通過(guò)觀(guān)察類(lèi)似的故障現象是否再次發(fā)生來(lái)判斷是不是點(diǎn)火控制器損壞。

When troubleshooting, when there is no effective means to find out the cause of the fault, replacement method can be used. For example, when it is suspected that the ignition controller is faulty, it is necessary to connect the ignition controller to a PC or a dedicated portable programmer for adjustment during inspection and adjustment, but basically the maintenance unit will not configure these detection equipment. In this case, the ignition controller on other standby equipment can be disassembled, installed and started to run, Whether the ignition controller is damaged can be judged by observing whether the similar fault phenomenon occurs again.

燃氣發(fā)電機組是適應世界環(huán)保要求和市場(chǎng)新環(huán)境而開(kāi)發(fā)的新型發(fā)電機組。天然氣發(fā)電機組主要分為兩種，一種是聯(lián)合循環(huán)燃氣輪機，一種是燃氣內燃機。燃氣輪機功率比較大，主要用在大、中型電站，燃氣內燃機功率比較小，主要用在小型的分布式電站。它是取代燃油、燃煤機組的新型綠色環(huán)保動(dòng)力。充分利用各種天然氣或有害氣體作為燃料，變廢為寶、運行安全方便，成本效益高，排放污染低，并適宜熱、電聯(lián)產(chǎn)等優(yōu)點(diǎn)，市場(chǎng)前景十分廣闊。

Gas generator set is a new type of generator set developed to meet the requirements of world environmental protection and new market environment. Natural gas generator set is mainly divided into two types, one is combined cycle gas turbine, the other is gas-fired internal combustion engine. The power of gas turbine is relatively large, which is mainly used in large and medium-sized power stations, while the power of gas-fired internal combustion engine is relatively small, which is mainly used in small-scale distributed power stations. It is a new green power to replace oil and coal-fired units. Making full use of all kinds of natural gas or harmful gas as fuel can turn waste into treasure, operate safely and conveniently, have high cost-effectiveness, low emission pollution, and are suitable for cogeneration of heat and electricity.

我國的天然氣資源十分豐富，相對于我國豐富的天然氣儲量,天然氣在我國一次能源消費中所占比例顯得太小,未來(lái)具有大幅提高的潛力。

China is rich in natural gas resources. Compared with China's abundant natural gas reserves, the proportion of natural gas in China's primary energy consumption is too small, which has the potential to be greatly improved in the future.

在我國，由于受到天然氣供應的影響，天然氣發(fā)電尚處于初始階段。真正大面積的天然氣發(fā)電作為分布能源站還要假以時(shí)日?，F在的小規模天然氣發(fā)電主要是在油田、氣田以及機場(chǎng)、酒店、醫院等?？梢灶A計，隨著(zhù)天然氣供應的愈加充足、供應范圍的不斷擴大，近幾年天然氣發(fā)電將會(huì )得到一個(gè)飛速的發(fā)展

In China, due to the influence of natural gas supply, natural gas power generation is still in the initial stage. It will take time for large-scale natural gas power generation to be a distributed energy station. At present, small-scale natural gas power generation is mainly in oil fields, gas fields, airports, hotels, hospitals, etc. It can be predicted that with the increasing supply of natural gas and the continuous expansion of the scope of supply, natural gas power generation will get a rapid development in recent years

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