Eyewash: An effective safety protection device that minimizes the risk of rapid damage when a toxic or hazardous substance (such as a chemical liquid) is sprayed on the body, face, eyes, or fire of a worker’s clothing. . but. Eyewash products are only used in emergency situations to temporarily reduce further damage to the body from harmful substances. Further treatment and treatment need to follow the doctor’s instructions.
Eyewashers were widely used in most factories, laboratories and hospitals in developed industrial countries (US, UK, etc.) as early as the 1980s. Its purpose is to reduce the harm to the body from toxic and harmful substances at work, and is widely used in petroleum, chemical, semiconductor industry, pharmaceutical manufacturing and places where dangerous materials are exposed.
So how to choose the right eyewash product?
First: According to the toxic and hazardous chemicals at the job site
When there is chloride, fluoride, sulfuric acid or oxalic acid in the concentration of more than 50%, you can only choose ABS stainless steel eye wash or special treatment of high performance stainless steel eye wash. Because the eye washer made of stainless steel 304 material can resist the corrosion of acids, alkalis, salts and oils in general, but it can not resist the corrosion of chloride, fluoride, sulfuric acid or oxalic acid with concentration above 50%. In the working environment in which the above substances exist, the eyewash produced by using the stainless steel 304 material will have a great degree of damage to the eye wash in less than six months. The concept of ABS dip and ABS spraying is different. ABS dip is molded with ABS powder instead of ABS liquid.
1. Features of ABS powder dip: ABS powder has strong adhesion strength, thickness of 250-300 microns, and strong corrosion resistance.
2. Features of ABS liquid dip: ABS powder has poor adhesion strength, thickness of 250-300 microns, and strong corrosion resistance.
Eyewash Selection Tips – Vertical Eye Washer Picture.jpg
Second: decide according to the temperature of the local winter
Except in southern China, other areas will have temperatures below 0 °C in winter, so there will be water in the eye washer, which will affect the normal use of eye washers.
To solve the problem of water in the eyewash, you must use an antifreeze eye washer, an electric eye wash or an electric heated eye wash.
1. The anti-freeze type eye wash device can drain the water in the entire eye wash device after the end of the eye wash device or when the eye wash device is in the standby state. The antifreeze type eye wash device has an automatic emptying type and a manual emptying type. In general, the automatic emptying type is adopted.
For East China, Central China and Southwest China, the frozen ground layer in winter is generally 20-30 cm. The inlet pipe can be insulated to prevent water from freezing in the inlet pipe. The ground-type automatic emptying antifreeze eye washer can be used. The eye wash device can automatically drain the water in the entire eye wash to prevent freezing.
For the northeast, north and northwest regions, the frozen ground layer in the winter is generally 50-190 cm. It is obviously impossible to solve the problem of water inlet and antifreeze by using the above-ground anti-freeze type eye wash. The underground automatic evacuation type anti-freeze eye washer must be used.
The eye wash device places the antifreeze valve at a position below the frozen soil layer, and uses a switch on the ground to control the water inlet and drainage of the eye wash device, and the eye wash device can automatically drain the water accumulated in the entire eye wash device and the water inlet pipe under the ground to prevent the water from being trapped. Icing.
2. In areas where both antifreeze and water temperature can be raised, electric heating eye washers or electric heating eye washers should be used.
The electric heating eye wash device is heated by the electric heating cable, so that the water in the eye wash device does not freeze, and the water temperature of the eye wash can be increased to a limited extent, but the water temperature of the spray cannot be raised at all. (Note: The flow rate of eye wash is 12-18 liters / minute; the spray is 120-180 liters / minute)
The electric heating eye wash device is heated by an electric heating system, so that the accumulated water in the eye wash device does not freeze, and the water temperature for washing and spraying can be improved.
Third, decide according to whether there is water in the workplace.
Portable eyewash can be used if there is no fixed water source in the workplace or if the work location needs to be changed frequently. This category of eyewash can be moved to the location required on the job site, but this type of small portable eyewash has only eyewashing, but no spray, and the eyewash is much smaller than a fixed eyewash. For the work site with fixed water source, the fixed eye washer is used, which can directly connect the tap water on the site, and the water flow is large.
There are many types of fixed eye washers that can be selected according to the needs of the factory.
Hybrid eye washer: There is a sprinkler system with an eyewash system installed directly on the ground.
Vertical eye wash: no spray system with eye wash system installed directly on the ground.
Wall-mounted eye wash: no spray system with eye-washing system installed directly on the wall.
Desktop eye wash: no spray system with eye wash system installed directly on the work surface.
Sprinkler: There is a sprinkler system without eyewash system installed directly on the ground.
Sprinkler: There is a sprinkler system without eyewash system installed directly on the wall or ceiling.
When the operator’s body and eyes are exposed to toxic or hazardous substances or other corrosive chemicals, these devices can be used for emergency flushing or showering of the eyes and body, mainly to prevent further damage to the human body caused by chemicals.