.|Sign in/Register|Website map|China Station

Bohua

Leading Brand in eye washer industry

+86-021-5169 3115

current location首页 » Bohua News Centre » Security equipment consultation » How to choose eye washer correctly

How to choose eye washer correctly

Return list source:BH 查看手机网址
扫一扫!How to choose eye washer correctly扫一扫!
browse:- Release date:2020-06-15 09:50:07【large in Small

Eye washer: it is an effective safety protection appliance that can quickly reduce the harm to the lowest when toxic and harmful substances (such as chemical liquid, etc.) are splashed on the body, face, eyes of the staff or the clothing of the staff is on fire in case of fire. But. Eye wash products are only used in emergency situations to temporarily slow down the further damage of harmful substances to the body. Further treatment and treatment need to follow the guidance of doctors.            

 

As early as the 1980s, eyewash was widely used in most factories, laboratories, and hospitals in developed industrial countries (the United States, the United Kingdom, etc.). It is widely used in petroleum, chemical industry, semiconductor industry, pharmaceutical manufacturing industry and places where hazardous substances are exposed.

 

So how to choose eyewash products correctly?

 

First: according to the toxic and harmful chemicals at the work site            

When chloride, fluoride, sulfuric acid or oxalic acid with a concentration of more than 50% exist on the site, only stainless-steel eyewash with ABS or high-performance stainless-steel eyewash with special treatment can be selected. Because the eye washer made of stainless steel 304 material can resist the corrosion of acid, alkali, salt, oil and other substances in general, but it can't resist the corrosion of chloride, fluoride, sulfuric acid or oxalic acid with concentration more than 50%. In the working environment where the above substances exist, the eye washer made of stainless steel 304 material will have a great progress in less than six months Degree of damage. The concept of ABS dipping, and ABS spraying is different. ABS impregnation is the use of ABS powder impregnation, rather than the use of ABS liquid impregnation.

 

1.Features of ABS powder: strong adhesion, thickness of 250-300 μ m, strong corrosion resistance.            

2. Features of ABS liquid impregnation: poor adhesion of ABS powder, thickness of 250-300 μ m, strong corrosion resistance.            

Second: according to the local winter temperature, except in South China, other areas will have weather below 0 ℃ in winter, so there will be water in the eyewash, which will affect the normal use of the eyewash. To solve the problem of water accumulation in eyewash, it is necessary to use antifreeze eyewash, electric heat tracing eyewash or electric heating eyewash.

 

The antifreeze eye washer can drain the water in the whole eye washer after the use of the eye washer or when the eye washer is in standby state. There are two types of antifreeze eye washer: automatic emptying type and manual emptying type. In general, they are all automatic emptying type.

            

For East China, central China, and southwest China, in winter, the underground frozen soil layer is generally 20-30cm. The water inlet pipe can be made of thermal insulation materials to prevent water from freezing inside the water inlet pipe. The above ground automatic emptying and freezing type eye washer can be used. The eyewash machine can automatically drain the water in the whole eyewash machine to prevent freezing. For the northeast, North and northwest regions, the frozen soil layer in winter is generally 50-190cm. The above ground type eye washer is obviously unable to solve the problem of water inflow and antifreeze, so it is necessary to use the buried type automatic evacuation and antifreeze eye washer.

           

The eye washer places the antifreeze valve under the frozen soil layer and uses the switch on the ground to control the water inlet and drainage of the eye washer. The eye washer can automatically drain the water in the whole eye washer and the underground water inlet pipe to prevent freezing.

            

In areas where the water temperature can be raised as well as antifreeze, the electric heat tracing eyewash or electric heating eyewash should be used. 

           

The electric heat tracing eye washer is heated by the electric heat tracing band, so that the accumulated water in the eye washer will not freeze, which can improve the water temperature of the eye washer to a limited extent, but it cannot improve the water temperature of the spray at all. (Note: the flow rate of eye wash water is 12-18 L / min; spray water is 120-180 L / min)

            

The electric heating eye washer uses the electric heating system to heat, so that the water in the eye washer will not freeze, which can improve the water temperature of eye wash and spray.

 

Third, it depends on whether there is water in the workplace            

If there is no fixed water source in the workplace, or the workplace needs to be changed frequently, the portable eye washer can be used. This kind of eye washer can be moved to the position required by the work site, but this kind of small portable eye washer only has the function of eye washing and has no spray function. The water flow of eye washing is much smaller than that of fixed eye washer. For the work site with fixed water source, fixed eye washer is used, which can directly connect the tap water on site, with large water flow. There are many kinds of fixed eyewash, which can be selected according to the needs of the factory.            

Compound eyewash: with spray system, eyewash system is directly installed on the ground            

Vertical eyewash: no spray system, eyewash system directly installed on the ground            Wall mounted eyewash: no spray system, eyewash system directly installed on the wall            Desk type eyewash: no spray system, eyewash system is directly installed on the working table            

Sprinkler: there is a sprinkler system and no eye wash system are directly installed on the ground            

Spray head: there is a spray system and no eye wash system installed directly on the wall and ceiling            

 

When the operator's body and eyes are exposed to toxic and harmful substances or other corrosive chemicals, this equipment can be used to wash or shower the eyes and body, mainly to avoid further harm to the human body caused by chemicals

 

Recommended reading

    【This article Tags】:
    【Responsible editor】:BHCopyright:http://en.bohuasafe.comReprint please indicate the source