Who invented the fire hydrant?

The patent certificate of the fire hydrant was destroyed in a fire, so no one knows who invented the fire hydrant. However, according to the investigation of later generations, the fire hydrant should be invented by Frederick Graff, an American hydraulic engineer, in 180 1 year. Although the patent was destroyed, the fire hydrant was also made according to the production principle of later fire hydrants.

Fire hydrant, officially named as fire hydrant, is a fixed fire control facility, whose main function is to control combustible substances, isolate combustion-supporting substances and eliminate fire sources. There are indoor hydrants and outdoor hydrants.

Fire fighting systems include outdoor fire hydrant system, indoor fire hydrant system and fire extinguisher system, and some will also have automatic sprinkler system, water cannon system, gas fire extinguishing system, fire detection system and water mist system. Fire hydrant suit generally consists of fire box+fire hose+water gun+connecting buckle+bolt+clip, etc. Fire hydrants are mainly used for fire engines to take water from municipal water supply network or outdoor fire water supply network to extinguish fire, and can also be directly connected with hoses and water guns to extinguish fire. Therefore, the indoor and outdoor fire hydrant system is also one of the important fire fighting facilities.

Indoor use

1. Open the fire hydrant door and press the internal water pump start alarm button (this button is used to start the fire pump and give an alarm).

2. One person connects the gun head and hose to the fire point.

3. Another person connects the other end of the hose to the aluminum port of the plug.

4. Open the valve counterclockwise and spray water. Note: Be sure to cut off the power supply to prevent electrical fire.