Intrinsic safety in a narrow sense (1)

Intrinsic safety in a narrow sense refers to the safety performance of elements such as machinery and equipment, objects, environment, and craftsmanship, which belong to the intrinsic safety of technical systems

1.

Eliminating or avoiding hidden dangers will prevent accidents.

(1) Eliminate hidden dangers in social practice

A large pit was left at the gate of a company due to underground pipeline construction.

(2) Avoid hidden dangers in social practice

An employee of a certain company went to another park for dinner at noon and had to walk a long road

In the practice of organic synthesis research and development, avoiding hazardous materials and adopting safe processes are the most simple and practical intrinsic safety

2.

(1) Enhance the safety performance of objects (machines) through technological transformation to achieve intrinsic safety

Many accidents are caused by the unsafe state of a certain machine equipment or a certain substance, and the safety performance of the object (machine) can be enhanced to achieve intrinsic safety through technological transformation

In the following case, the intrinsic safety of material transfer is realized by changing the shape of the joint

This is a reaction using butyl lithium.

(2) To achieve intrinsic safety through the safety performance of the environment

Some accidents are caused by environmental factors, and intrinsic safety can be achieved by changing or enhancing the safety performance of the environment

NaH, LiAlH ₄ , BuLi, etc.

If dangerous goods can be weighed in a glove box (cabinet) filled with nitrogen that can isolate the outside air, no matter how carelessly it is, it is impossible to catch fire, because there is no burning condition in the environment in the box (cabinet)