Natural gas generator is a new type of high-efficiency new energy generator that uses combustible gas such as liquefied gas and natural gas as combustion materials instead of gasoline and diesel as engine power. The natural gas generator set is an igniting gas engine fueled by high-calorific gas such as natural gas. On the basis of non-supercharged models, a supercharging system and an inter-cooling system are added. The cooling system adopts a method of separating high and low temperature cycles. The high temperature cycle cools high temperature components such as the cylinder, body, and cylinder head, and the low temperature cycle cools the pressurized gas. , Air and oil coolers.
Because the generator only rotates when it is working, the ESC has a fast response speed, and the work is particularly stable. The output voltage and frequency of the generator have high accuracy and small fluctuations. When the load is suddenly increased by 50% and 75%, the unit will become intensive. Camel line is very stable. The electrical performance index is better than diesel generator set.
The time from a successful cold start to full load is only 30 seconds, while the international regulations stipulate that diesel generators will carry a load 3 minutes after a successful start. The gas turbine generator set can guarantee the success rate of startup under any ambient temperature and climate.
Because the gas turbine is in a high-speed rotation state, its vibration is very small, and the low-frequency noise is better than that of a diesel generator set.
Such as: gas, straw gas, biogas, etc., the generator set using them as fuel is not only reliable in operation, low in cost, but also can turn waste into treasure without causing pollution.
Before using the natural gas generator set engine, appropriate specifications of natural gas, oil and coolant should be selected according to the specific environment and conditions of use. Whether it is selected properly or not has a great influence on the performance and service life of the engine of the natural gas generator set.
The fuel for gas engines is mainly natural gas, and combustible gases such as oilfield associated gas, liquefied petroleum gas, and biogas can also be used. The gas used should be dehydrated by drying to achieve no free water, crude oil and light oil, its low calorific value should not be less than 31.4mj/m3, total sulfur content not more than 480mg/m3, hydrogen sulfide content not more than 20mg/m3. In addition The natural gas transmission pressure is within the range of 0.08-0.30MAP.
Engine oil is used to lubricate the moving parts of natural gas engines and cool these moving parts, remove impurities and prevent rust. In addition to its quality has an impact on the performance and service life of the gas engine, it also has a certain impact on the service life of the oil. For this reason, the appropriate oil should be selected according to the ambient temperature of the gas engine of the natural gas generator set. Natural gas engines use gas engine special oil 15W40CD or 15W40CC as much as possible.
The coolant used in the direct cooling engine of the cooling system usually uses clean fresh water, rainwater or clarified river water. When the natural gas engine is used in an environmental condition below 0 degrees, the coolant should be strictly prevented from freezing, causing the parts to freeze and crack . According to the temperature, it can be equipped with antifreeze with proper freezing point or hot water before starting, but the water should be drained immediately after stopping.
Gas generators compared to diesel generator set make full use of various natural gas or harmful gases as fuel, turn waste into treasure, operate safely and conveniently, have high cost-effectiveness, low emission pollution, and are suitable for combined heat and power generation. The market prospect is very broad.
China's natural gas resources are very rich. Compared with China's abundant natural gas reserves, the proportion of natural gas in China's primary energy consumption appears to be too small, and it has the potential to greatly increase in the future.
In China, due to the impact of natural gas supply, natural gas power generation is still in its initial stage. It will take time for the truly large-scale natural gas power generation as a distributed energy station. Small-scale natural gas power generation is mainly in oil fields, gas fields, airports, hotels, and hospitals. 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 develop rapidly in recent years.