What is the spacing of outdoor fire hydrants in industrial plants?

The layout of the outdoor fire water supply pipeline shall comply with the following provisions:

1. The outdoor fire water supply pipe network should be arranged in a ring shape, and when the outdoor fire water consumption is less than or equal to 15L s, it can be arranged in a branch shape;

2. There should be no less than 2 inlet pipes for conveying water to the annular pipe network, and when one of them fails, the rest of the inlet pipes should be able to meet the supply requirements of the total amount of water for fire fighting;

3. The annular pipeline should be divided into several independent sections by valves, and the number of internal and outdoor fire hydrants in each section should not exceed 5;

4. The diameter of the outdoor fire water supply pipe should not be less than DN100;

5. Other requirements for the installation of outdoor fire water supply pipelines shall comply with the relevant provisions of the current national standard "Code for Outdoor Water Supply Design" GB 50013.

The arrangement of outdoor fire hydrants shall comply with the following provisions:

1 Outdoor fire hydrants should be installed along the road. When the width of the road is greater than 60m, it is advisable to set up fire hydrants on both sides of the road and be close to the intersection;

2. Fire hydrants in Class A, B and C liquid storage tank farms and liquefied petroleum gas storage tank farms shall be set up outside the fire embankment or protective wall. Fire hydrants within 15m of the tank wall should not be counted in the number of tanks that can be used;

3. The spacing of outdoor fire hydrants should not be greater than 120m;

4. The protection radius of outdoor fire hydrants should not be greater than 150m; Within the protection radius of 150m of municipal fire hydrant, when the outdoor fire water consumption is less than or equal to 15l s, outdoor fire hydrant can not be installed;

5. The number of outdoor fire hydrants should be determined according to the comprehensive calculation of its protection radius and outdoor fire water consumption, and the water consumption of each outdoor fire hydrant should be calculated according to 10 15L s; Municipal fire hydrants within 5 40m of the distance from the protected object can be included in the number of outdoor fire hydrants;

6. Above-ground fire hydrants should be used for outdoor fire hydrants. Above-ground hydrants should have 1 DN150 or DN100 and 2 DN65 bolts. When using outdoor underground fire hydrants, there should be 1 bolt mouth of DN100 and 1 DN65.

Outdoor fire hydrants set up in cold areas should have anti-freezing measures;

7. The fire hydrant should not be more than 2m away from the roadside and not less than 5m away from the outer wall of the house;

8. The fire hydrant in the process plant area should be set around the process device, and its spacing should not be greater than 60m. When the width of the process plant area is greater than 120m, it is advisable to set up fire hydrants on the side of the road in the device area.

Outdoor fire hydrants, valves, fire pump adapters and other locations of the building should be set up with corresponding permanent fixed signs.

If it is difficult to set up municipal fire hydrants and outdoor fire hydrants in cold areas, water cranes and other facilities for adding water to fire trucks can be set up, and the scope of protection can be determined as needed.

The spacing is not more than 120 meters, and the protection radius is not more than 150 meters.

1. The "Trial Measures for the Safety Management of Fire Hydrants" stipulates:It is strictly forbidden to pile up objects within 10 meters around the fire hydrant, and no parking is allowed within 15 meters.

The Regulations of the People's Republic of China on Road Traffic Management stipulates: "In front of bus stops, tram stops, first-aid stations, gas stations, fire hydrants or fire brigades (stations) and road sections within 30 meters from the above-mentioned places, except for vehicles using the above-mentioned facilities, other vehicles are not allowed to stop."

2. The surrounding debris shall not be blocked by fire hydrants and fire extinguishers, and the fire hydrants and fire extinguishers placed in the fire hydrants and fire extinguishers shall not be visible from a distance; Second, it can not affect the normal use, such as whether the placement of items affects the normal opening of the fire hydrant door, whether it can facilitate the extension of the hose, the connection of the water gun, whether it is convenient for the access of fire extinguishing equipment, etc.

Indoor and outdoor fire hydrants.

Outdoor fire hydrant: the protection distance of low-pressure fire hydrant shall not exceed 120 meters, the protection distance of stable high pressure and high-pressure fire hydrant shall not exceed 60 meters, and the distance from the building shall not be less than 5 meters. Not more than 5 meters from the road, leaving nothing within 2 meters of the fire hydrant.

Indoor fire hydrants: Indoor fire hydrants should be installed in obvious locations and easy to operate. The height of the bolt mouth from the ground or the operating base surface should be meters, and the direction of the water outlet should be downward or at an angle of 90 degrees with the wall surface of the fire hydrant, and the distance between the bolt mouth and the inner edge of the fire hydrant box should not affect the connection room layout of the fire hose.

Outdoor fire hydrant: the protection distance of low-pressure fire hydrant does not exceed 120 meters; The protection distance of stable high pressure and high pressure fire hydrant does not exceed 60 meters; not less than 5 meters from the building; Not more than 5 meters from the road, leaving nothing within 2 meters of the fire hydrant.

When the indoor and outdoor fire hydrants are directly supplied by the municipal water supply pipe, and an independent fire water supply system is adopted, a backflow preventer should be set at the interface with the municipal water supply pipe network.

The water filling time of the dry fire hydrant system should not be greater than 5min. The number of outdoor fire hydrants should be determined according to the comprehensive calculation of the protection radius of the fire hydrant and the fire water consumption of the outdoor fire hydrant, the outflow of each outdoor fire hydrant should be calculated according to 15L s, and the municipal fire hydrant within the range of 5 40m from the protection object can be included in the number of outdoor fire hydrants.

Installation Points:

Fire hydrant: A device connected to a fire water supply system or water supply system, equipped with an on/off valve and one or more outlets to be used to supply water to a fire hose or to a fire truck. Fire hydrants are divided into indoor fire hydrants and outdoor fire hydrants.

When the indoor and outdoor fire hydrants are directly supplied by the municipal water supply pipe, and an independent fire water supply system is adopted, a backflow preventer should be set at the interface with the municipal water supply pipe network.

The number of outdoor fire hydrants should be determined according to the comprehensive calculation of the protection radius of the fire hydrant and the fire water consumption of the outdoor fire hydrant, the outflow of each outdoor fire hydrant should be calculated according to 15L s, and the municipal fire hydrant within the range of 5 40m from the protection object can be included in the number of outdoor fire hydrants.

No rules? The fire protection law strictly prohibits the water source and power supply to be installed in the same position, and try to stay away from the range of 5m due to the fear of leakage caused by water leakage. Otherwise, if the fire protection is not qualified, it will be a headache.

Regarding the arrangement of indoor fire hydrants, the commonly used codes for civil buildings stipulate as follows: the spacing of indoor fire hydrants in the Code for Fire Protection Design of Buildings shall be determined by calculation. The spacing of indoor fire hydrants in high-rise workshops (warehouses), high-bay warehouses and Class A and B workshops should not be greater than 30m; The spacing of indoor fire hydrants in other single-storey and multi-storey buildings should not be greater than 50m; Introduction:

5. The spacing of fire hydrants should be calculated and determined. In order to prevent unreasonable arrangement and ensure the reliability of fire extinguishing use, the maximum spacing of fire hydrants is specified.

The spacing of indoor fire hydrants should not exceed 30m for buildings with high fire danger and serious consequences after fire, such as high-rise factories (warehouses), high-bay warehouses, Class A and B factories, hotels with air conditioning systems, and important public buildingsThe spacing of indoor fire hydrants in other single-storey and multi-storey buildings can be extended to 50mThe spacing of fire hydrants in the Code for Fire Protection Design of High-rise Civil Buildings should be determined by calculation, and high-rise buildings should not be greater than 30m, and podiums should not be greater than 50m

Code for fire protection design of garages, garages and parking lots》The full water column of the water gun of the indoor fire hydrant should not be less than 10m, the diameter of the fire hydrant should be 65mm, the caliber of the water gun should be 19mm, and the protection radius should not exceed 25mThe spacing of adjacent indoor fire hydrants on the same floor should not be greater than 50m, but the spacing of indoor fire hydrants in high-rise garages and underground garages should not be greater than 30mThere are two problems after the analysis of the above specifications:

First. The high-standard podium should not be larger than 50m and not rigorous. Second.

None of them stated how the spacing was to be determined, and on the first question, it should be determined in accordance with the requirements of the building regulations, i.e., the risk of fire. The podium of non-commercial outlets is arranged at 30 meters, which is more reasonable. Second question.

Indoor fire hydrants should be spaced according to the distance traveled, not in a straight line.

We know that no matter what is installed, it must be in accordance with the requirements, so as to achieve the effect you want, fire hydrants believe that everyone will be familiar with it, so be sure to figure out its spacing when installing. Let's introduce to you what are the requirements for the spacing of outdoor fire hydrants.

1. If the width is more than 60 meters along the road, it is suitable to set up fire hydrants on both sides of the road, and it should be close to the intersection.

2. It should not be less than 5 meters away from the outer wall of the house.

3. The spacing of outdoor fire hydrants should generally not exceed 120 meters.

4. The number of fire hydrants should be determined according to the water consumption of fire fighting, and each water consumption should be calculated according to 10 15L s.

What to pay attention to when installing fire pipes.

It is still necessary to be prepared when constructing, and you must choose the right construction materials.

1. First of all, it is necessary to ask for fire pipes, in fact, generally speaking, galvanized carbon steel pipes will be selected. This kind of pipe fittings are uniformly galvanized inside and outside, and there is no corrosion, so it can be said that the use of this pipe makes the life of the device longer.

2. Secondly, you should choose the right pipe. For fire hydrants, under normal circumstances, carbon steel pipes will be used, this kind of pipes, can not be bent when used, and are prone to unevenness, users can choose their own situation to determine, must meet the requirements.

3. The next step is the selection of alarm valves and control valves, as well as indicators and other components, and the accessories must be kept complete, and all kinds of accessories must meet the relevant standards.

4. It is necessary to choose a suitable sprinkler head, and its specifications and types must meet the design requirements, and its appearance must be regular and complete.

5. The fire hydrant box can not ignore a place, it must be kept square, and the accessories in the box must be complete, flexible to use, and have the relevant characteristics such as certificates.

Summary: What are the relevant contents of the requirements for the spacing of outdoor fire hydrants, and the spacing of outdoor fire hydrants generally cannot exceed 120 meters. If you want to know more about related knowledge, you can consult Qijia.com.

Fire hydrants are important facilities for fire safety in urban construction, and the spacing of fire hydrants is related to the efficiency and success rate of fire rescue. According to the relevant national regulations and standards, when arranging fire hydrants, their spacing should not be greater than a certain range, which will be described in detail below.

First of all, we need to understand that spacing refers to the distance between fire hydrants, including horizontal and vertical distances. Horizontal distance refers to the horizontal distance between fire hydrants, and vertical distance refers to the vertical distance between fire hydrants and the ground. When placing fire hydrants, both distances should be taken into account.

According to the Code for Fire Protection Design of Buildings (GB 50016-2014), the horizontal distance of fire hydrants should not be more than 100 meters, and the vertical distance should not be more than 100 meters in urban residential areas, cultural and educational areas, commercial areas, hospitals, stadiums and other public places. In industrial areas, logistics areas, warehouses and other places, the horizontal distance of fire hydrants should not be more than 80 meters, and the vertical distance should not be greater than meters. These regulations are all to ensure the speed and efficiency of fire rescue, so that fire trucks can quickly arrive at the fire scene and use fire hydrants normally.

In addition, according to the Code for the Design of Fire Protection Facilities (GB 50084-2001), in the building, the horizontal distance of the fire hydrant should not be more than 30 meters, and the vertical distance should not be more than meters. This is to ensure that the fire protection facilities in the building cover the oak area, so that the fire extinguishing equipment can cover every area. Of course, this distance also depends on the size and structure of the building, and the specific situation needs to be designed according to the actual situation.

In short, when arranging fire hydrants, the spacing should not be greater than a certain range to ensure the efficiency and success rate of fire rescue. The exact spacing depends on the site and needs to be planned and designed according to the relevant regulations and standards.

Design of the protection radius of outdoor fire hydrants and the maximum spacing of the arrangement.

1. The protection radius of the outdoor fire hydrant. The protection radius of outdoor low-pressure fire hydrant water supply is generally considered according to the fire truck series 9 hoses, the water gunner on the fire ground has a 10m mobile hose, if the hose is laid along the ground according to the calculation coefficient, then the fire truck water supply distance is (9 20 10).

Therefore, the protection radius of outdoor low-pressure fire hydrants is 150m. The protection radius of the outdoor high-pressure fire hydrant water supply is considered according to the series of 6 water belts, and the protection radius is (6 20 10) in the same calculation. Therefore, the protection radius of outdoor high-pressure fire hydrants is 100m.

2. The maximum arrangement spacing of outdoor fire hydrants. The principle of the spacing arrangement of outdoor fire hydrants is to ensure that any part of the urban area is between the protection radius of the two fire hydrants.

According to the urban road construction, the maximum layout spacing of municipal fire hydrants x = R2 (L Z)2, R is the maximum protection radius of fire hydrants, and L is the distance between the center lines of the streets, which is about 160m according to urban planning requirements.

It is calculated that the spacing of outdoor low-pressure fire hydrants is x=127m, and the spacing of outdoor high-pressure fire hydrants is x=60m. Considering the needs of water supply at the fire site, the maximum spacing of outdoor low-pressure fire hydrants should not be greater than 120m, and the maximum spacing of high-pressure fire hydrants should not be greater than 60m.

Construction and installation. 1) The construction and installation should be carried out in accordance with the relevant standards of GB50242-2002 of the Code for Acceptance of Construction Quality of Building Water Supply and Drainage and Heating Engineering, and the National Building Standard Design Atlas 01S201 "Outdoor Fire Hydrant Installation" can be referred to.

2) The system must be tested for hydrostatic pressure, and the test pressure is times of the working pressure, but not less.

3) The position sign of the outdoor fire hydrant should be obvious, and the position of the bolt mouth should be convenient for operation. When the bolt is wall-type, if the design does not require, the central installation height of the inlet and outlet water plug mouth should be from the ground, and the above should be equipped with measures to prevent falling objects from blowing.

4) The installation dimensions of outdoor fire hydrants and fire pump adapters should meet the design requirements, and the allowable deviation of the installation height of the bolt mouth is 20mm.

5) The distance between the top outlet of the underground fire hydrant and the bottom surface of the fire manhole cover shall not be greater than 400mm, and there should be enough operating space in the well and a ladder shall be provided. In cold areas, the well should be protected from freezing.

6) Before the completion of the fire pipeline, the pipeline must be flushed.