Tightening the handle of the truck drying tank is called the drying tank wrench. This paper introduces the use of drying tank in freight car gas path system.

The drying tank is a vital part of the gas path system of freight cars, but it is easily overlooked.

1. What is a drying tank?

The drying tank is an object that looks like a tank installed on the gas path system of a truck. Its function is the same as that of diesel oil and oil filter, except that the former filters diesel oil and oil, while the drying tank filters compressed air. The picture below shows the drying tank installed on the gas path.

There are many reasons that affect the braking performance, and the drying tank is an important factor that cannot be ignored. The drying tank is used to filter the water vapor in the compressed air in the gas pipeline system to prevent the corrosion of gas cylinders and various pump valves. Therefore, whether the drying tank can work normally directly affects the performance of the brake. If inferior products are used for a long time or not replaced, the dehumidification function will be lost, which will seriously affect the braking safety of the whole vehicle.

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Second, why do you want to install a drying tank?

Because the air contains more or less water vapor, when the air is compressed by the air compressor, the water vapor will become liquid water pollution and corrode the air storage tank and various pump valves, and the pump valves may freeze in winter, resulting in brake failure. Therefore, it is necessary to install a drying tank on the pipeline between the air compressor and the air storage tank to absorb the moisture in the air.

Third, how to choose a drying tank?

Because the purpose of the drying box is to filter the water vapor in the air, of course, the denser the filtering effect, the better, so when we choose the drying box, we should try to choose a thin, porous and solid drying box. For example, in this picture, the drying tank on the left is better.

We should always pay attention to whether the drying tank works normally. If the bottom of the drying tank is wet or leaks oil after deflation, it means that the internal desiccant has failed and can't absorb enough water, which makes the moisture in the truck gas path increase and condensed water appears. It should be replaced at this time. When replacing, try to choose a high-quality, fine-pore and solid-structure drying tank, which is more secure, can avoid more economic losses in the future, and is also conducive to driving safety.

4. How long does it take to replace the drying tank?

There is no fixed statement about this, because the working conditions of each car are different, and the service life of drying cans produced by different manufacturers is also different. China is so big, and the weather in the north and south is different, so the replacement frequency of drying tanks cannot be generalized.

How often do you change the drying tank of the truck? This is what many drivers and friends want to know. Because of the different working conditions of each car, the quality and service life of different brands of drying cylinders are also different, and there is no unified standard for replacement cycle. In most cases, it is changed once a year. Generally, before winter, some good quality drying cans can be used for several years, so it depends on the situation.