(1), economy. 1m3LNG is equivalent to 625N.
M3 natural gas company. The operation of diesel vehicles with the same horsepower shows that 1m3 natural gas is equivalent to 1l 0 # diesel, while the price of 1m3 natural gas is about 5.2 yuan, which is equivalent to 70% of the price of 1l 0 # diesel (7.24 yuan), that is, the cost of diesel vehicles with the same horsepower can be saved by 30% after switching to natural gas. The annual operating mileage is calculated as 70,000 kilometers (the fuel consumption per 100 kilometers is calculated as 50 liters of diesel or 50m3 of natural gas), which can save 7. 1 10,000 yuan.
(2) Good safety performance. The ignition point of LNG is 650℃, which is higher than diesel and gasoline, and more difficult to ignite than gasoline and diesel. The explosion limit of LNG is 5%- 15%, and the density after gasification is only half that of air, so if there is leakage, it will evaporate and spread immediately. LNG has a low storage pressure (0.3-0.7MPa) and is safer than CNG.
(3) Environmental protection. Because of its pure composition and less impurities, LNG vehicles emit less harmful gases such as SO2, NOX and CO2, which is beneficial to environmental protection.
(4), reliable. LNG has good low-temperature start-up performance and can save fuel in low-temperature season. LNG has a high energy density, and a large LNG truck can travel continuously for 800- 1000 km with one refueling, which can meet the demand of long-distance transportation. The LNG gas source is sufficient, which can be transported by special tankers for a long distance, and is not limited by the natural gas pipeline network. (5) Modification of LNG vehicles. The octane number of natural gas is as high as 130, which has good explosion-proof performance. After refitting, the engine life can be prolonged by more than 2 times, and the corresponding maintenance cost can be reduced by more than 50%. At present, the domestic transformation technology is mature, and the investment is generally recovered within half a year after the transformation. The modification of LNG vehicles can be realized in two ways: one is to change the existing diesel engine into a natural gas engine and install LNG gas supply system; The second is through direct purchase of LNG vehicles.
The engine was transformed by a professional company, and the original engine was transformed into a single fuel engine. After modification, the engine can reach the technical level of the new engine, with a service life of 500 thousand kilometers.
Advantages of diesel vehicles:
1, with mature technology and high power;
2. It is convenient to refuel and the oil stations are widely distributed;
3. The leakage is controllable.