What are the liquid ammonia protection products? You know what?
发布日期:2022-02-16 11:25:16 作者:admin 点击:672
As an important chemical raw material, ammonia is widely used. It is mostly used in freezing and refrigeration, poultry breeding, chemical fertilizer processing, semiconductor industry, metallurgical industry and scientific research. In order to facilitate transportation and storage, ammonia is usually pressurized or cooled to obtain liquid ammonia. Because liquid ammonia is corrosive and easy to volatilize, the accident rate is very high.
Since safety accidents caused by liquid ammonia occur frequently, as enterprise managers, they should pay special attention to their employees. In the event of equipped with liquid ammonia protective equipment, we must not be careless. The following is a brief introduction to the allocation of liquid ammonia protective articles:
1、 Instrument: ammonia gas detector
The ammonia gas detector mainly uses the gas sensor in the instrument to detect the ammonia concentration in the environment, and then the gas sensor determines whether to give an alarm according to the set upper and lower limits of concentration. Gas detectors are generally divided into portable and fixed types, which need to be equipped in combination with the actual situation of their own enterprises:
1. Portable gas detector is convenient to detect the on-site ammonia concentration and easy to carry. It can continuously detect the concentration of ammonia gas, and is suitable for on-site detection of hazardous gases in explosion-proof, toxic gas leakage rescue, underground pipelines and other places.
2. Fixed gas detector, of course, is mainly used in the field of liquid ammonia operation, which is generally fixed in a corner. It is more suitable for the continuous and long-time stability required by fixed detection in technology and technology. They should be selected according to the concentration of ammonia on site, and they should also be installed at the location where ammonia may leak.
2、 Personal protective equipment
It mainly includes respiratory protection, body protection and foot protection.
1. Respiratory protection
Specific respiratory protection products against ammonia include self-priming gas masks and partition gas masks (air respirators). The two are used in different occasions. If the ammonia concentration is relatively small, self-priming gas masks can be used, such as semi masks, masks, etc; According to its high concentration, such as ammonia leakage, air respirator must be equipped to stop leakage or other operations on site.
2. Body protection
Protective clothing is divided into light protective clothing and heavy protective clothing. Light protective clothing is generally made of nylon coated VC, which is light in weight. It is suitable for personal protection in dangerous places and can prevent acid-base damage of general nature. The heavy-duty protective clothing is made of multi-layer high-performance chemical resistant composite materials, which has excellent properties such as tear resistance, tie resistance, wear resistance, flame retardancy, heat resistance, edge, waterproof and sealing. It can protect all kinds of toxic and harmful liquid, gaseous, smoke, solid chemical substances, biological agents, toxic gases and nuclear pollution. If the general enterprises are worn by workers for operation, it is not necessary to buy heavy protective clothing. Light chemical protective clothing can be selected, and then equipped with self-priming gas mask for protection. The safety coefficient can also meet the requirements.
3. Foot protection
Because ammonia is corrosive, it is recommended to use chemical resistant boots for foot protection configuration, and it is not recommended to use low top or high top safety shoes. Chemical resistant boots have larger protection area and high safety coefficient.
4. Other protective articles
In addition to the above two categories, the liquid ammonia protective articles configured by the enterprise also include first-aid kit, liquid ammonia plugging tools, etc. The first aid kit is essential for every enterprise. It is equipped with some commonly used drugs to treat the wound in time. The liquid ammonia plugging tool adopts strong magnetic plugging, which mainly uses the strong magnetic force of the magnet to temporarily block the leakage caused by the damage of the valves of the storage tank and pressure vessel.