What are the hazards of unqualified vehicle urea?

Then we have to see where the unqualified urea for this car is unqualified, if it is biuret or insoluble matter in urea, or phosphate, these things are unqualified. Then the damage to the car is that the urea pump burns out, the pipe is blocked, the nozzle is blocked, and the exhaust cylinder is blocked. Then these accessories are blocked, and the only solution is to replace the accessories.

And clean no broken fittings. These are not very expensive. Then if the metal ions are unqualified (which is also the most difficult aspect of qualified urea to control), then the damaged thing is three-way catalyst poisoning.

The cost of this replacement is even greater. Therefore, the disadvantages of unqualified vehicle urea are great. At present, the very good products made of automotive urea are Meifeng Jialan and Yara.

Most of the unqualified vehicle urea is blended with agricultural urea instead of vehicle urea. Ordinary chemical fertilizer urea contains biuret, mechanical impurities, formaldehyde, and metal ions, which will cause catalyst poisoning and damage to parts of SCR tail gas post-processor. And we searched on the Internet and found that the value of the urea pump is less than 10,000 yuan, and if the damage cannot be recovered, it is a big loss for the user.

In addition, because chemical fertilizer urea is easy to crystallize at low temperature and cannot guarantee the concentration of urea solution, it will cause low nitrogen oxide conversion. In addition, ammonia loss can damage the SCR system and prevent the vehicle from meeting emission standards.

First of all, auto urea is composed of deionized water and high-purity urea. If the urea content alone is insufficient, the consumption will increase; If the water treatment is not good, it will scale in the nozzle, causing the system to not work properly; If urea contains formaldehyde heavy metals, then the tail gas treatment can not meet the standard, and it is easy to poison the catalytic converter, and the treatment effect is reduced or invalid. Shenyang Tianenying Deli vehicle urea has been tested by the national authoritative department, fully in line with the national standards, and can be used with confidence.

Hope mine is helpful to you.

Blocking the urea nozzle and damaging the SCR system.

The high-quality new blue jin pure car urea will not clog the bump.

Poor water quality will hurt the stomach, and poor urea quality will hurt the accessories.

The use of urea solution of different quality is also different for the maintenance of the vehicle. When the purity of the selected urea solution is not enough, and there are impurities such as particulate matter and heavy metal ions, it will cause serious damage to the nozzles, filters and other parts of the vehicle SCR system, and bring unnecessary economic losses. If the chemical composition of low-quality urea solution is not high, when there are heavy metals and other chemical components, it will have a chemical reaction with the catalyst to reduce the effect of tail gas conversion, or even lose its effect.

Therefore, when choosing urea solution, we should try to choose high-quality products to control the maintenance cost of the vehicle. If the density is too high, the vehicle will also have an alarm reaction, and the standard concentration of urea water for vehicles is between. Chuandong Chemical's vehicle urea is a reducing agent for eliminating harmful nitrogen oxides in the exhaust gas after diesel combustion, with appropriate purity, low heavy metal content and less impurities, which can make diesel vehicle exhaust emissions meet the national, European and European emission standards.

It works together with the vehicle-mounted SCR catalytic reduction system to convert harmful nitrogen oxide gases emitted by diesel engines into harmless water vapor and nitrogen, thereby eliminating pollution to the atmosphere.

Summary. If this happens, mainly because the quality of the urea you add is not good, generally speaking, when the vehicle uses urea, it can effectively reduce the production of nitrogen oxides, if the quality of the urea you choose is not good, then after post-processing, the nitrogen oxides will still exceed the standard, so at this time the computer will break out the failure of urea unqualified**, so in this case, first of all, it is recommended that you replace the urea with a better one, if it still does not work, Then you should consider checking whether there is a problem with your rear nitrogen and oxygen sensor, which may be due to the inaccurate signal of the nitrogen and oxygen sensor itself, which will cause this prompt to appear in the computer.

If this happens, if the main wisdom model is because the quality of the urea you add is not good, generally speaking, when the vehicle uses urea, it can effectively reduce the production of nitrogen oxides, if the quality of the urea you choose is not good, then after post-treatment, the nitrogen oxides will still exceed the standard, so at this time, the computer will break out the failure of urea unqualified**, so in this case, first of all, it is recommended that you replace the urea with a better one, if it still doesn't work, Then you should consider checking whether there is a problem with the nitrogen and oxygen sensor after you are sleepy, this may be due to the inaccurate signal of the nitrogen and oxygen sensor itself, which will correct the prompt that appears on the computer.

I put the original one, and changed the *** urea, but the car ran to a kilometer and still showed that the urea was not qualified.

Originally, this car was a new car, just a year, and it was rarely used, why did this phenomenon occur.

If the vehicle is parked for a long time, it may cause the urea nozzle to clog, so you need to check the urea pump and the urea nozzle.

Is it expensive to change this thing, can you change it yourself.

This can be cleaned at the repair shop, and it doesn't have to be replaced. Basically, one or two hundred dollars is enough for cleaning.

Do you have to clean it in the future?

If you run a lot, there will generally be no jams.

There are too many problems with the National VI car, when I first bought it, the regeneration fault light is always on, what is the reason.

This must have something to do with the fact that you run less, and it is recommended that you run more at high speed at ordinary times.

If you are a National 6 car, you are afraid of long-term parking and long-term low-speed driving.

The new car does not have a year, in this case, the manufacturer will not repair it.

This is covered by the warranty.

According to Article 50 of the "Product Quality Law", "if the product is adulterated or adulterated, the fake is passed off as the real or the shoddy product, or the substandard product is passed off as a qualified product, the production and sales shall be stopped, the products produced and sold by the illegal Shengsong Liang shall be confiscated, and a fine of not less than 50% but not more than three times the value of the illegally produced and sold products shall be imposed; where there are unlawful gains, the illegal gains from the tomb shall be confiscated concurrently; where the circumstances are serious, the business license is revoked; where a crime is constituted, criminal responsibility shall be pursued in accordance with law." Since all the substandard products produced by the parties have been sold and cannot be recovered, a fine of less than three times the value of the goods shall be imposed according to the basis of the administrative penalty discretion and the right to balance the transportation.

Adurea is non-toxic to the human body.

The urea aqueous solution is a high-purity transparent liquid, with a faint smell of ammonia, although it has alkaline cavity stimulation, it is non-toxic.

The SCR program has obvious advantages in the national diesel vehicle exhaust emission treatment system, and vehicle urea is a necessary addition to the SCR program. With the gradual implementation of the China IV emission standard for diesel vehicles in various cities, the demand for automotive urea may be blowing out.

It may lead to blockage of urea infusion pipes and nozzles in the SCR system of diesel engines, affecting the conversion efficiency of catalytic reduction reactions.

The excessive content of impurities in the aqueous solution of automotive urea may lead to the blockage of the urea infusion pipe and nozzle of the SCR system of the diesel engine, affecting the conversion efficiency of the catalytic reduction reaction. There are 13 batches of products in this random inspection, and the project is unqualified.

Urea content is an important quality indicator of automotive urea aqueous solution products. Too high urea content will lead to secondary pollution of urea residue (high temperature hydrolysis of urea produces ammonia and carbon dioxide), and too low urea content will reduce the conversion efficiency of nitrogen oxides in the tail gas to nitrogen, resulting in some nitrogen oxides being directly discharged into the atmosphere without being reduced.

When nitrogen oxides are found in the exhaust pipe, the urea tank automatically sprays out the diesel exhaust gas treatment fluid, and the diesel engine exhaust treatment fluid and nitrogen oxides undergo redox reaction in the SCR catalytic reaction tank to generate pollution-free nitrogen and water vapor discharge.

1.Coslane.

The first professional production of automotive urea brand in China, with stable and reliable quality, self-built sales channels all over the countryYuetai Sea Dragon.

3.Star of Kunlun.

Is it harmful to diesel vehicles if you don't add urea without permission?

It is not possible to talk about the harm of diesel vehicles without urea, but the impact is still very large. At the same time, because the purpose of using vehicle urea is to reduce vehicle exhaust pollution, if you do not add vehicle urea to the vehicle without permission, it will not only ignore national laws and regulations, but also become the culprit of destroying the earth's ecological environment! This act should be condemned by us, and we must apologize to the people of the world!

The specific hazards of not adding urea are as follows:

1. Polluting the environment: As mentioned above, diesel vehicles without urea will have an extremely bad impact on the ecological environment, which is also not allowed by national laws and regulations.

2. Damage to the SCR injection system: If there is no urea for a long time, the nozzles, pipelines and urea pumps in the SCR system may be crystallized and blocked, or damaged due to high temperature.

3. Weakened power: This is not because of the direct impact caused by not adding urea, but when the engine electronic control system cannot monitor the injection of urea and the exhaust pollution exceeds the standard, it will forcibly limit the torque output of the engine.

1. The main purpose of adding urea is to reduce the emission of carbon and nitrogen compounds, and there is no impact on the engine without adding urea, but the emission will exceed the standard and cause pollution to the environment. 2. If urea is not used for a long time, the chemicals in the diesel vehicle system will be oxidized quickly, and the urea nozzle will also be blocked, which will make the whole system scrapped.