News - Buy LNG private car should be aware of eight major attention to the issue to buy eight major attention to the issue of LNG special purpose vehicles should be aware of: Chu victory automobile Disclaimer: This article copyright belongs to the author, protected by law, can be reproduced, reprint, but must The hyperlink situation indicates the original source and author of the article! I heard that LNG trucks can save about 1 yuan per kilometer, and many users are tempted to buy LNG trucks. However, they have heard that there are many problems with LNG trucks, and there are few filling stations. The power and safety may not be satisfactory. Maintenance is not very convenient, so many people have played back. Therefore, the purpose of this article is to point out the issues that need to be paid attention to when purchasing LNG trucks, and provide help for users who purchase LNG trucks.
Which areas are suitable for LNG trucks?
To purchase the first LNG truck, you must have a filling station on your operating route. At present, the development of gas stations in many provinces is fast, such as Xinjiang, Shandong, Shanghai, Shanxi and other places, and bulk car buyers can apply for a station. Although there are many gas stations in some provinces, most of them are point-to-point gas stations. Therefore, if it is not a fixed-line cargo, it is best not to use LNG trucks to operate.
If you are a large batch user and you are ready to purchase more than 20 trucks for operation, and you are using fixed-line point-to-point transport, then you can seek cooperation with the gas company and let the gas company establish a gas station for you. Now many gas companies, even PetroChina, Sinopec or CNOOC, are eager to sell their gas, and users with dozens of LNG trucks are, of course, their long-term quality customers. They are very happy to build for you. Gas station.
Moreover, gas providers are now eager to nuggets in this market, and they are even willing to provide you with some preferential loans, so that you first set up an LNG team. However, we must keep our eyes open. Gas stations built by some unqualified gas suppliers may not have desulfurization and dehydration equipment installed. This will cause various types of sensors to malfunction, and it will also cause greater damage to the engine.
If you have an LNG truck and you have a refueling station, what if you still worry that the vehicle is not on the road? This doesn't matter, if your strength or the strength of the gas provider allows, you can also buy a mobile refuelling vehicle to completely solve the worries.
Is natural gas truck powerful?
The power of natural gas engines is slightly different from that of diesel engines of the same displacement, but the difference is not as large as most users think. Most users' impression of the lack of natural gas engine power is mainly due to the lack of power after the car engine is converted into a natural gas engine. At the same time, the early natural gas engines were indeed refitted on the basis of the original diesel engine. Because the natural gas engine is ignited, the diesel fuel is ignited, and the octane number difference is also large, so the lack of power in the modified engine is certain. .
Now that natural gas engines have matured, they are all based entirely on the combustion characteristics of natural gas. Its power, torque and other characteristics are very similar to or almost the same as ordinary diesel engines. The only difference is that because its combustion mode is ignited, its low-speed torque characteristics are not as good as ordinary diesel engines. Therefore, the low-speed start-up and climbing performance will be slightly different from the same-power diesel engines. For high-speed standard transportation, the performance of natural gas engines is exactly the same as that of diesel engines. Even for heavy-haul transportation such as pull coal mining, natural gas trucks are not inferior. Of course, if you are transporting at Yunguichuan's corners and ramps, do not use LNG trucks.
In addition, engine power is also affected by the quality of natural gas. From the perspective of the actual situation of the user's car, the power difference depends on the local LNG calorific value, the southeastern region uses imported LNG, so the power will be stronger; while Sichuan and the western region use local self-produced gas, small calorific value Some of the power will be affected.
The most critical point is that overload is generally forbidden at present, so the standard load of 336 horsepower or 375 horsepower natural gas engines can fully meet the power requirements.
Is the gas truck safe?
The safety of natural gas trucks is also of great concern to users. Many users believe that the installation of two gas tanks behind the cab of natural gas trucks, especially tractors, is simply a "mobile explosives package." In fact, there is such a worrying mentality. The first reason is that LNG cylinders are very close to the cab seats, which makes drivers feel close to them. They are afraid that their own living space will be reduced in the event of rear-end collisions. The second reason is that drivers think LNG. Gas tanks are high pressure tanks and feel that they may explode at any time.
So are these driver's opinions correct for these concerns about LNG cylinders? The reporter believes that they are not completely correct. First of all, the presence of a gas tank does narrow the space behind the trailer and the cab; but at the same time, the tank and its support can act as a buffer to withstand the impact of the rear trailer. Then some people say that with this kind of squeeze, the tank will not explode. Is the driver more dangerous? In fact, when designing LNG tanks, it has already considered how much impact it can withstand if a collision occurs. LNG cylinders must do two safety tests. The first one is to put the gas cans in a large fire at 550°C and bake them, without distortion or explosion for more than 2 hours. The second is to drop the cans from a height of 20 meters and the cans will not be deformed nor leaked. Will not explode.
Are gas trucks saving money?
In the current situation of natural gas prices and diesel prices, natural gas trucks are undoubtedly economical. This almost does not have to prove, because the promotion of heavy truck companies and the use of bulk purchases by many logistics companies have proved this. According to the actual use of some users, one kilometer is generally about 1 yuan. This is an estimate, some users only 0.5 yuan / km, and some save more than 1.3 yuan / km.
As a result, many users worry that if natural gas trucks are used in large quantities, will the price of natural gas soar? In fact, this worry is also redundant. First of all, natural gas reserves are much larger than oil, and its use rate is much lower than that of oil, so the probability of price increase is very small. The continuous decline of natural gas prices in the United States in the past 10 years is a good example. Second, China also provides natural gas. The linkage mechanism between gasoline and diesel prices is that the price of natural gas for the same value of fuel will never exceed 75% of the price of gasoline and diesel. Thirdly, when logistics companies establish gas filling stations with gas companies, price terms can also be added. The supply price of natural gas is always lower than that of diesel.
Is the gas truck mature?
In fact, the maturity of natural gas trucks is most closely related to the maturity of natural gas engines. When choosing natural gas trucks, you should focus on natural gas engines and select those companies that have long started to develop natural gas engines. The valve body and gas tanks of natural gas trucks are also provided by basically the same suppliers. The difference is not so great.
From the current point of view, there are several companies in the industry whose natural gas trucks are relatively mature, such as China National Heavy Duty Truck Group and Shaanxi Automobile Heavy Trucks. Their natural gas engines were launched earlier, trucks are more mature, users are more endorsed, and they buy more. .
Is it easy to repair and maintain natural gas trucks?
At present, the maintenance of natural gas trucks is not very convenient. Because natural gas trucks have a small social footprint, many truck service stations do not have the ability to repair natural gas trucks, and there are relatively few natural gas engine-related accessories. Therefore, users must be clear when transporting LNG trucks. Whether there are relevant service stations on the route, whether there is maintenance capacity and accessories for natural gas trucks.
For batches of users, such as car companies with more than 20 purchases, the general heavy-duty truck manufacturers will be specially equipped with a maintenance point. Therefore, as long as it is a large amount of users, you do not need to worry about it.
How much more expensive is natural gas than ordinary trucks?
Natural gas trucks are more expensive than ordinary trucks on engines and gas tanks. Generally, the price of a LNG gas tank is about 30,000 yuan, and the natural gas engine is 20,000 yuan more expensive than an ordinary engine. Therefore, if two ordinary gas tanks are used, the total cost is about 80,000 yuan more than that of ordinary trucks.
Is a natural gas engine easily damaged?
The parts that are easily damaged by natural gas engines now are spark plugs and various gas valves, which are relatively easy to replace and repair. The use of other parts of the engine is no different from ordinary engines. It is as durable as normal maintenance.
From the above analysis, it can be seen that the use of LNG trucks is still a "patent" for rich gas regions, large fleets, and logistics companies. Ordinary truck retailers, still consider buying a diesel truck.
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