Use of fire fighting equipment
Use of fire fighting equipment
1, fire hydrant box
In case of fire, according to the opening method of the door, press the spring lock on the door, the pin will automatically withdraw. After pulling the door open, remove the water gun and pull the water hose, pull out the water hose, and connect the water hose. Connect with the fire hydrant interface, press the fire hydrant alarm button in the box to unscrew the indoor fire hydrant hand wheel in the direction of opening, that is, you can spray fire.
2, fire water gun
A fire water gun is a fire-fighting water-jet tool that, when connected to a water hose, ejects a dense, water-filled stream. It has the advantages of long range and large water volume. It consists of the main components such as the pipe joint, the gun body and the nozzle. The DC switch water gun is a DC water gun that adds ball valve switches and other components that can control the flow of water through the switch.
3, water belt buckle
Water hose buckle: used for the connection between water hose, fire truck, fire hydrant and water gun. In order to deliver water and foam mixture for fire fighting. It consists of a body, a seal seat, a rubber seal ring and a retaining ring to the parts. The seal ring has a groove for the water belt. It has good sealing performance, and the connection is fast and labor-saving, and it is not easy to fall off.
Pipe connection: installed at the water inlet end of the water gun, the internal thread fixed interface is installed in the fire hydrant. Fire water pump and other water outlets; they are composed of a body and a sealing ring, one end is a pipe thread, and one end is an inner button type. They are all used to connect the water belt.
4, fire hose
The fire hose is a hose for water delivery at the fire station. Fire hoses can be divided into lining fire hoses and unlined fire hoses. The unlined water belt is low in pressure, high in resistance, easy to leak, prone to mildew and short in life, and is suitable for laying fire in buildings. The lining hose has high pressure, wear resistance, mildew resistance, no leakage, low resistance, durability, and can be bent and folded freely. It is easy to use and suitable for external fire laying.
5, indoor fire hydrant
A fixed fire fighting tool. The main role is to control combustibles, to isolate combustion aids, and to eliminate sources of ignition. How to use indoor fire hydrants:
Open the fire hydrant door and press the internal fire alarm button (the button is the alarm and the fire pump is activated). 2. One person picks up the gun head and the water belt and rushes to the fire point. 3. Another person picks up the hose and valve port. 4. Open the valve counterclockwise and spray it out. Note: The electric fire should be determined to cut off the power.
6, outdoor fire hydrant
A fixed fire-fighting connection device installed outdoors, including an outdoor ground fire hydrant, an outdoor underground fire hydrant, and an outdoor direct-buried telescopic fire hydrant.
The above ground type is connected to the ground, which is easy to operate, but easy to be bumped and easy to be frozen. The underground antifreeze effect is good, but a large underground well room needs to be built, and the firefighters need to go to the well to receive water during use, which is inconvenient to operate. Outdoor direct-buried telescopic fire hydrant usually fires the hydrant back below the ground and pulls out the ground when working. Compared with the ground type, it can avoid collision and has good anti-freezing effect; it is easier to operate than underground, and it is easier to install directly.
Water tank
The water tank is a storage tank that connects the fire pipes. The water supply equipment used mainly in the fire can better prevent the spread and extinction of the fire.
Windows are desiged for use in optical systems to separate two enviroments while passing a particular spectral range between them.Applications include laser set-ups (e.g.at Brewster's angle),emitter,detector protection devices, such as in sepctrophotometers and imaging systems.
China Star Optics offers all types of windows made from different materials. Such as N-BK7, Fused silica, sapphire,CaF2, Silicon, Borofloat, high borosilicate glass and other optical glass supplied by Schott and Chinese CDGM are available upon request. Windows at shape of round,quadrate, triangular or other polygonal are also available upon request.In addition, we provide a variety of single layer or multiplayer anti-reflecting coating,HR,PR coatings on Optical Windows.
Specification of our optical windows as follow:
*Material:high borosilicate glass, BK7,UV-grade fused silica (JGS1) or other optical crystals materials
*Length tolerance:+/-0.01
*Width tolerance:+/-0.01
*Center thickness tolerance:0.005mm
*Surface quality:80-50 to 10-5 Scratch/Dig
*Surface flatness:<lambda to lambda/20
*Parallelism<=1min -- 2sec
*Clear Apenture:80% -- 100%
Infrared Window,Zinc Selenide Windows,Znse Wedged Window,Zinc Selenide Laser Window
China Star Optics Technology Co.,Ltd. , https://www.csoptlens.com