What does it look like to test a fire hydrant?

The roof experiment plug is generally a valve, table, and bolt; Even the box and gun, belt do not need to be set up, the experiment directly open the bolt, if you want to use the water hose, you can borrow it from the adjacent lower layer, you can save it, and the part saved does not affect the safety of the system. There are 30 buildings in a community, which saves tens of thousands of yuan, so it can not be set up. Test fire hydrants.

Functions: 1. Test system pressure; 2. Test the working condition of each linkage device of the system (including the button start pump, of course); 3. Extinguish fires in neighboring buildings.

When a fire occurs, fire hydrants often play a huge role, and their bad is directly related to the safety of people's lives and property. How to distinguish the authenticity of fire hydrants is an important lesson that consumers must learn. Below we introduce you to the identification method of fire hydrants.

Indoor fire hydrants: valve bodies, hoses, and water guns all need to be carefully inspected.

The fire hydrant is mainly composed of a fire hydrant box, a fire hydrant, a water gun, a water hose, a hanger, a water hose buckle, and a fire button. For qualified indoor fire hydrants, all parts of the components should be complete and complete and easy to use. Consumers can check against the following.

Fire hydrant valve body.

Pay attention to whether the fire hydrant valve body is marked with cast models, specifications and trademarks. The surface of the plug should be coated with anti-rust paint, and there is no serious rust, otherwise it will be judged to be unqualified. The type of fixed interface should be kn type, and the arrow and word indicating the direction of the switch should be clearly cast on the rim of the handwheel.

The stem should be lifted smoothly and flexibly, and there should be no jamming and loosening. The magnet material can also be used to determine whether the stem material is copper. The surface of the fire protection interface should have permanent signs such as model, specification, trademark or factory name.

The surface of the interface should be anodized or electrostatically sprayed for anti-corrosion.

Fire hoses. 1. Product identification. Each hose should be made of colored thread as the center line of the belt body, and the product name, design working pressure, specification, warp, weft and lining material should be printed with ink that is not easy to fall off on both sides of the center line near the end.

2. The appearance quality of the fabric layer. The fabric layer of the qualified hose should be woven evenly, without double warp jumping, broken double warp, weft jumping and scratches.

3. The length of the hose. Use a tape measure to measure the total length of the whole roll of the hose, if the measured length is less than 1 meter of the length of the hose, the product is judged to be unqualified.

4. Pressure test. Intercept the meter-long hose, use a manual pressure test pump or an electric pressure test pump to pressurize smoothly to the test pressure, hold the pressure for 5 minutes, check whether there is leakage, and if there is leakage, it is unqualified.

Fire water cannons. The surface material of the fire water gun body should be made of corrosion-resistant materials and treated with anti-corrosion. The surface of the casting should be free of scars, cracks and holes, and the surface of the aluminum part should be anodized.

In the drop resistance test, the water gun falls freely to the hard cement floor from a height of about 2 meters above the ground (from the lowest point of the water gun) in three positions: the nozzle is facing up, the nozzle is facing down, and the axis of the water gun is in a horizontal state. The water cannon should still be in normal operation after being checked after being dropped twice in each position.

Outdoor fire hydrant: The valve body should be coated with anti-rust paint.

Outdoor fire hydrants require smooth surfaces of iron and copper castings, without obvious sand holes, pores, cracks and other defects. The exposed parts should be painted with red paint, uniform in color, and free of cracks, scratches and bruises. The surface of the valve body should be coated with anti-rust paint.

The plug body should also be clearly cast with permanent signs such as model, specification, trademark or factory name, and there should be an automatic discharge device for residual water.

The hose connection and suction pipe connection should be made of brass or stainless steel with mechanical properties not lower than HPB59.

Summary. Installation Criteria:

1. The bolt should be facing outward and should not be installed on the side of the door shaft.

2. The center of the bolt is from the ground, and the allowable deviation is 20mm.

3. The center of the valve is 140mm away from the side of the box, 100mm from the inner surface of the box, and the allowable deviation is 5mm.

4. The perpendicularity of the fire hydrant box installation is allowable deviation of 3mm. Inspection Method: Observation and Measurement Inspection.

1. Fire hydrant:

Officially known as fire hydrant, a fixed fire-fighting facility, the main role is to control combustibles, isolate combustibles, and eliminate ignition sources. It is divided into indoor fire hydrants and outdoor fire hydrants.

Fire protection systems include, outdoor fire hydrant system, indoor fire hydrant system, fire extinguisher system, and some will also have automatic sprinkler system, water cannon system, gas fire extinguishing system, fire detection system, water mist system, etc. The fire hydrant is mainly used by fire trucks to draw water from the municipal water supply pipe network or outdoor fire water supply pipe network to extinguish the fire, and can also be directly connected to the hose and water gun to extinguish the fire. Therefore, the indoor and outdoor fire hydrant system is also one of the important firefighting facilities for fire fighting.

What is the installation standard of fire hydrant for fire roof test?

Installation standards: 1. The bolt should be facing outward and should not be installed on the side of the door shaft. 2, the center of the bolt mouth from the ground, allowable deviation, valve center from the side of the box is 140mm, from the inner surface of the box is 100mm, allowable deviation, the permissible deviation of the verticality of the fire hydrant box installation is 3mm.

Inspection Method: Observation and Measurement Inspection. 1. Fire hydrant:

Officially called the fire hydrant, a fixed fire-fighting facility, the main function is to control combustibles, isolate combustibles, and eliminate the source of fire. It is divided into indoor fire hydrants and outdoor fire hydrants. Fire protection systems include, outdoor fire hydrant system, indoor fire hydrant system, fire extinguisher system, and some will also have automatic sprinkler system, water cannon system, gas fire extinguishing system, fire detection system, water mist system, etc.

The fire hydrant is mainly used by fire trucks to draw water from the dusty municipal water supply pipe network or outdoor fire water supply pipe network to extinguish the fire, and can also be directly connected to the hose and water gun to extinguish the fire. Therefore, the indoor and outdoor fire hydrant system is also one of the important firefighting facilities for fire fighting.

2. Guess the location of the ear: (1) The fire hydrant should be placed in the shared space of the public spike debate such as the corridor or hall, and it will generally be in the wall between the above-mentioned empty stoves and hailstones, and it cannot be decorated in any way, and it is required to have eye-catching marks (indicate"Fire hydrants"and shall not set up obstacles in front of it to avoid affecting the opening of the fire hydrant door. (2) Fire hydrants are generally not located in rooms (such as boxes), which do not meet the regulations of fire protection and are not conducive to the timely rescue of firefighters.

1. Test firing process: select the fire hydrant, open the shed, and quickly prevent the pressure of the pump to control the test shot of the designated part Confirm the test shot result The test shot is over, and the original state is restored. 2. Determine the first-floor test-firing fire hydrant (any two adjacent fire hydrants) on the fire completion plan, and find the room or part that should reach the farthest point; The door or window of the roof to go to the roof with a fire hydrant for roof inspection and test has been opened, and the pressure gauge confirms that the work is normal.

3. Open the fire hydrant box for the roof inspection test, press the fire pump start button, remove the fire hose and quickly connect the bolt mouth and water gun, open the fire hydrant valve, pull it to the flat roof, and test fire at a horizontal upward inclination angle of 30 ° 45 °, and observe whether the pressure gauge reading meets the design requirements, and observe that the length of the dense water hydrant shot out is 7m, 10m and 13m according to the regulations.

Summary. The setting requirements of the test fire hydrant are to set two spacing not more than 120m on the roadside, not more than 2m away from the roadside, and set on the edge of the building more than 5m and less than 20m away from the building.

The setting requirements of the test fire hydrant are to set two spacing of no more than 120m and no more than 2m from the roadside, and Xiaomin is set at the edge of the building, which is more than 5m and less than 20m away from the building.

2. Multi-storey and high-rise buildings should be set up on their roofs, and the freezing areas such as severe cold and cold can be set up at the top exit or in the water tank room and other convenient and anti-freezing locations3. The single-storey building should be placed in the most unfavorable place of hydraulic power, and should be close to the entrance.

Generally, you don't need to look at the design specifically.

Basically, there are indoor fire hydrants, and the roof is flat, and experimental fire hydrants should be set up.

1. Fire hydrants shall be installed on all floors of buildings equipped with fire water supply (except for the equipment floor without combustibles);

2. The arrangement of indoor fire hydrants should ensure that the full water column of two water guns reaches any part of the room at the same time. When the building height is less than or equal to 24m, and the volume is less than or equal to 5000 m3, the warehouse can be filled with 1 water gun to reach any part of the room. The length of the water column should be determined by calculation, and generally should not be less than 7m, but it should not be less than 10m in Class A and B workshops, civil buildings with more than six floors, and workshops and warehouses with more than four floorsIn high-rise industrial buildings and elevated warehouses, the water column of the water gun should not be less than 13m water column

3. The hydrostatic pressure at the mouth of the indoor fire hydrant should not exceed 80m water column, if it exceeds 80m water column, the zonal water supply system should be used. When the water pressure at the mouth of the fire hydrant exceeds 50m water column, there should be pressure relief facilities

Fourth, the front room of the fire elevator should be equipped with an indoor fire hydrant;

5. Indoor fire hydrants should be located in a place that is obviously easy to access. The height of the bolt mouth from the ground should be downwards or at an angle of 90° with the wall surface of the fire hydrant

6. The indoor fire hydrant of the cold storage should be located in the hall or stairwell at room temperature;

7. The spacing of indoor fire hydrants shall be determined by calculation. The spacing of indoor fire hydrants in high-rise industrial buildings, elevated warehouses, Class A and B workshops should not exceed 30m;The spacing of indoor fire hydrants in other single-storey and multi-storey buildings should not exceed 50m. Fire hydrants, water cannons and hoses of uniform specifications should be used in the same building.

The length of each hose should not exceed 25m;

8. For buildings with indoor fire hydrants, if they have flat roofs, fire hydrants for testing and inspection should be set on the flat roofs

9. High-rise industrial buildings and other buildings whose water tanks cannot meet the water pressure requirements of fire hydrants at the most unfavorable points should be set up at each indoor fire hydrant to directly start the fire pump, and there should be protection facilities.

Note: Hotels and office buildings with air conditioning systems, as well as theaters and halls with more than 1,500 seats, should be equipped with fire hose equipment at the horse road where the face lamp is installed in the stuffy roof.

The new code is that experimental fire hydrants are generally installed on the roof, not on the roof, and are also required to be installed near the entrance.

The new code requires that one floor, not a flat roof, cannot be located on the roof, and it is also required to be installed near the entrance.