·In the use of cars, "oil to gas" to stop the relevant industries have something to say

Once the city's "oil to gas" business is completely stopped in a one-size-fits-all manner, it will cause great shock to the relevant industrial chain, which will inevitably lead to the unemployment of a large number of employees and the formation of social instability. Relevant government departments should establish a regulatory mechanism, standardize the access conditions, and rationally authorize the corresponding qualified units to promote the healthy development of the market by regulating the “oil to gas” market.
Not long ago, a letter on the guidance on further strengthening the safety management of motor vehicles "oil to gas" (draft for comments) (hereinafter referred to as "Opinions") caused waves in the industry. The "Opinions" issued by the General Administration of Quality Supervision, Inspection and Quarantine, the central idea is that the use of motor vehicles "oil to gas" does not comply with the relevant provisions of the "Road Traffic Safety Law" and "Vehicle Manufacturers and Products Announcement" A big safety hazard requires that the "oil to gas" of the motor vehicle be stopped.
A stone stirred up a thousand waves. The "Opinions" just appeared, and all kinds of doubtful voices from related industries came one after another. An industry insider believes that at the critical moment of the country's promotion of energy diversification and circular economy development, the introduction of this document is clearly contrary to the national industrial policy. If this document is implemented, it will cause a fatal blow to the relevant industrial chain.
The "death penalty" is arguing for the Chaoyang industry. The so-called "oil-to-gas" refers to the conversion of the fuel vehicle in use into a gas-fueled single-fuel vehicle or a fuel-gas dual-purpose vehicle. In the field of commercial vehicles, it is common to convert old heavy-duty diesel vehicles into gas vehicles. Some of the old models of the engine are close to the end of life (mileage), re-manufactured by the engine to reach the new factory engine standard and replaced with natural gas fuel, so that the engine and the car "rejuvenation", and more than the original The new car is more energy efficient.
According to the relevant regulations of the state on gas vehicles, the newly manufactured natural gas vehicles listed in the "Vehicle Manufacturers and Products Announcement" are legal vehicles that comply with relevant regulations. Since the state has already allowed the internal combustion engine remanufacturing and automobile modification business, for the modified vehicles mentioned above, in the actual operation, as long as the public security traffic bureau, quality supervision department, gas company and other related units record and pass the verification, It is allowed to go on the road and can conduct annual inspections every year.
The promulgation of the "Opinions" essentially condemned the "death penalty" for the "oil-to-gas" business of motor vehicles, and suffocated this booming sunrise industry.
In this regard, the relevant person in charge of the China Internal Combustion Engine Industry Association told the China Industry News that many of the "yellow-label cars" on the market have not yet expired, but they are facing elimination because of emissions that are not up to standard, if such vehicles are simply Dealing with compulsory retirement will not only bring property losses, but also be detrimental to the development of China's circular economy and energy-saving and environmental protection industries.
The benefits of “oil to gas” look at the actual effect of “oil to gas”. The consensus in the industry is: First, from the current price comparison between natural gas and diesel/gasoline, natural gas vehicles have obvious fuel cost advantages; In terms of emissions, the main emission pollutants of natural gas vehicles are significantly lower than those of diesel/gasoline vehicles. Third, the use of some provinces with more natural gas reserves has obvious geographical advantages, and the effect of local conditions is significant.
From a technical point of view, LNG (Liquefied Natural Gas) is a high-quality vehicle fuel. Compared with steam/diesel, it has the advantages of high octane number, good explosion resistance, complete combustion, less pollutants discharged and long engine life. Based on current gasoline/diesel prices and natural gas prices and current vehicle fuel/gas consumption, in general, the cost of using LNG in a truck can be reduced by about one-third.
In the actual use case, you can get a clear economic account by simply asking the user. For example, an “oil-to-gas” user in Nanchong, Sichuan, said: “'Oil to gas' is really cost-effective. The conversion fee for my 'Poussin' car is more than 6,000 yuan, calculated according to 50 kilometers per day. In the month, you can save more than 500 yuan, and you can overtake the cost of changing the car in half a year.” Taking the related taxi as an example, according to the survey, the cost of using a gasoline and natural gas for a taxi varies by about 100 yuan a day, about a month. More than 3,000 yuan, the annual cost savings will reach more than 30,000 yuan. If these taxis on the road cannot be “oil-to-gas” in the future, the consequences will not only be the transfer of increased costs to passengers, but also the double damage of atmospheric emissions and national energy strategies.
Li Yongchang, a special expert of the China Automotive Engineering Society and secretary general of the Clean Auto Industry Association of Zigong City, Sichuan Province, analyzed that in the context of the State Council’s request for “accelerating the development of natural gas vehicles” and “accelerating the construction of gas stations”, Once the vehicle is stopped, the annual increase of natural gas vehicles will be reduced by at least three-quarters, and the construction speed of the corresponding gas stations will inevitably slow down. The entire natural gas automobile equipment manufacturing industry will also shrink.
More importantly, stopping the use of vehicles to “oil to gas” will directly lead to an important goal in the national energy strategy – “natural gas accounts for more than 10% of primary energy consumption in 2020” is difficult to achieve. Because once the vehicle is “returned to gas”, it will reduce millions of natural gas vehicles during the next six years from 2015 to 2020, correspondingly reducing the consumption of natural gas by tens of billions of cubic meters. The relevant industries will face extremely serious consequences.
Industry giants have expressed their opinions. At present, China's dependence on foreign oil is close to 60%. Although the current international crude oil price continues to fall, in the long run, due to the non-renewable nature of petrochemical resources, its future price will remain in the big cycle. Long-term upward trend. For a transportation company, fuel costs account for half of transportation costs. For diesel, the price of refined oil is raised by 400 yuan per ton, which will directly increase transportation costs by 2.7% and logistics costs by 1.9%. Therefore, transportation companies urgently need a new type of fuel to replace diesel to reduce transportation costs and increase profits.
For the "Opinions" to stop using the "oil to gas" approach, several major domestic diesel remanufacturing companies have something to say. The relevant person in charge of Weichai Remanufacturing told the China Industry News reporter that a user of Liangshan Yueyue Vehicle Co., Ltd. in Wuyuan County, Inner Mongolia, for example, this user has successively put into use 1,700 firewood remanufactured natural gas engines this year. In the cold weather in northern China, the engine is easy to start and has good performance. It is not only energy-saving and environmentally friendly, but also safe and reliable. Compared with the original diesel fuel, the overall fuel cost is about 35%, which brings huge benefits to users.
The relevant person in charge of another domestic key remanufacturing company, China National Heavy Duty Truck Jinan Fuqiang Power, believes that the replacement of the fuel engine with a non-compliance with a fuel engine that meets the requirements of the new machine, including the replacement of the old fuel oil for remanufacturing The production of fuel oil is not modified on the original machine, so this business should be called "oil exchange" accurately. Take the "oil exchange" of the Steyr series engine as an example. The gas engine saves fuel costs of 60-70 yuan per 100 kilometers of diesel vehicles of the same configuration, reducing harmful gas emissions by more than 10%. On the other hand, in terms of providing jobs, if one 10,000 sets of "oil-to-gas" engines are produced in one year, 500 people can be employed, of which 330 are remanufactured, and 170 people are involved in acquisition and sales. .
Furui Te, an important domestic natural gas equipment production and engine remanufacturing company, expressed its own different views on the "Opinions". The person in charge of the company told the China Industry News that "oil to gas" is to improve China's automobile exhaust emissions. One of the effective means of quality and control of atmospheric haze, the "Opinions" proposed to completely ban the use of vehicles to "oil to gas" does not fully take into account the diversity of China's automobile "oil to gas", simply on the grounds of safety The comprehensive ban on the industry is not conducive to the protection of the property of relevant enterprises and ordinary people, and is also not conducive to the development of China's circular economy and energy conservation and environmental protection industries. If this is implemented, the "Efficient Cleanup and Re-engineering Demonstration Project for Internal Combustion Engines" in the "Internal Combustion Engine Re-engineering Plan" formulated by the Ministry of Industry and Information Technology will become a piece of paper. The view that natural gas vehicles are not safe is worth discussing. According to the "safety" emphasized in the "Opinions", all the experts and enterprise personnel interviewed by China Industrial News reporters said that they cannot guarantee the vehicles when they use the "oil to gas" There is no scientific basis for the viewpoint of safety performance. The "Opinions" said that "there is a vehicle accident when a vehicle is changed to a vehicle". This is a very vague statement. There is no relevant statistical data or examples to support it. , lack of sufficient persuasiveness.
The safety concerns in the Opinions are actually related to the safety of natural gas and natural gas storage devices, and are not much related to other parts of the car. In terms of the characteristics of natural gas itself, the ignition point of LNG is 650 ° C, which is much higher than the 427 ° C of gasoline and 260 ° C of diesel; the ignition energy of LNG is also higher than that of steam / diesel, and it is more difficult to ignite. On the other hand, the density of LNG is about 470 kg per cubic meter, and the density after gasification is only about half of that of air, so that a slight leak is volatilized and diffused. In addition, the explosion limit of LNG is 4.7% to 15%, which is wider than 1% to 5% of gasoline and 0.5% to 4.1% of diesel. It is more difficult to achieve explosive conditions than steam/diesel.
The relevant technicians of Furuit installed also told the China Industry News that the heavy-duty trucks after the "oil-to-gas" generally use a single LNG, the use pressure is low, and the LNG cylinders are double-layer stainless steel structure, safety performance. It is much higher than CNG (compressed natural gas) cylinders, and there is no risk of higher than ordinary gasoline/diesel vehicles during use.
The use of Zigong City in Sichuan Province can also explain the problem: more than 90% of the city's 17,000 CNG vehicles are in use of modified vehicles. In the 25 years since the beginning of 1989, natural gas vehicles have not been modified. The cause of the CNG car accident. Of the several accidents that occurred before 2005, two were due to bottle explosions caused by the quality of the cylinders but did not harm people. Among them, there is a car burning accident caused by the quality of the gas cylinder safety valve. Two Jetta car burning accidents are exactly the original car.
In other parts of Sichuan Province, three CNG bus burning accidents occurred in Ganzhou City in the past three years. A CNG bus burning accident occurred in Yibin City, all of which were natural gas original vehicles.
Therefore, on the issue of the safety of the "Opinions", how many safety accidents are caused by the "oil-to-gas" in the use of vehicles, which really needs the relevant departments to analyze carefully before the corresponding results can be obtained.
Relevant industries and vehicles should be standardized. “A paper document may completely erase the results that have been achieved in the past!” An entrepreneur engaged in engine remanufacturing complained to China Industry News reporter. In some of the rich natural gas provinces in the western part of China and the provinces with more natural gas vehicles in the eastern part, such as Sichuan, Shaanxi, Inner Mongolia, Xinjiang, Henan, Shandong, Anhui, etc., the car has changed into a very mature industry. chain. According to an incomplete statistics, the number of “oil-to-gas” conversion plants with legal qualifications across the country is at least several thousand, and the number of employees is tens of thousands. Once the city's "oil to gas" business is completely stopped in a one-size-fits-all manner, it will cause great shock to the relevant industrial chain, which will inevitably lead to the unemployment of a large number of employees and the formation of social instability. From the current state of use of natural gas vehicles, "oil to gas" is in the bottleneck of the industry, the crux of the problem is not only that the number of natural vehicles is far from meeting market demand, but also that the number of corresponding gas stations is small, so that the relevant vehicles are Frequently encountered in the process of use. Solving these problems is imminent, far more difficult than the so-called security issues that do not provide relevant data support.
From the practice of other countries in the world that use more natural gas vehicles, it can be found that in some countries in Iran, Pakistan, India, Italy, Canada and Southeast Asia, most of them adopt the so-called "original car" and "modification". Car" parallel strategy. Once China’s “oil-to-gas” is stopped, it is probably not only in our country, but China, as a major automobile producing and using country, must not be underestimated in other relevant countries and regions in the world.
The relevant person in charge of the China Internal Combustion Engine Industry Association, which is closely related to the “oil to gas” business in the vehicle, told the China Industry News that the relevant government departments should establish a regulatory mechanism and establish access by regulating the “oil to gas” market in the vehicle. Conditions, reasonable authorization to the corresponding qualification units to promote the healthy development of the market. The corresponding vehicle and engine modification enterprises must obtain authorization and technical support for the gas engine production and natural gas vehicle cylinder units at the same time, and must obtain the above two-level vehicle maintenance qualification; the vehicle cylinder production enterprises must also obtain the AQSIQ issued by the AQSIQ. The corresponding level of special equipment manufacturing license, the cylinder should be obtained from the local supervision and inspection department issued by the supervision and inspection certificate, all of which are in order to ensure the "oil to gas" business and the safe operation of the relevant vehicles.

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