The fire sprinkler is a kind of fire-fighting equipment. It is reported in the news that the man drove through the fire-spraying sprinkler due to the high body, and compensated the community for RMB 6,000. Everyone knows about the fire sprinklers around them, and they also see its power. Such things have certain responsibilities to people. Then everyone will follow the Xiaobian together to see the exciting content of the fire sprinkler .
I. General regulations
1. The distance between the splashing sprinkler head and the ceiling, floor slab and roof slab should not be less than 7.5 cm, and should not be greater than 15 cm. When the slab and roof slab are non-combustible with a fire resistance limit equal to or greater than 0.50 hours, the distance should not be greater than 30 cm.
Note: Ceiling-type nozzles are not limited by the above distance.
2. The sprinklers placed on the sloped roof slab and under the suspended ceiling shall be perpendicular to the inclined surface, and the spacing shall be calculated according to the horizontal projection. When the roof panel has a slope greater than 1:3 and there is no sprinkler within 75 cm from the ridge, a row of sprinklers should be added to the ridge.
3. The distance between the nozzle and the beam edge when the sprinkler disk is arranged near the beam side shall be determined according to the requirements that do not affect the spray area.
4. When setting the nozzle at the door window, the distance between the nozzle and the upper surface of the hole should not exceed 15 cm; the distance from the wall should not be less than 7.5 cm, not more than 15 cm.
Second, the nozzle layout of the warehouse
The vertical distance between the sprinkler head and the protected object below it shall meet the following requirements:
1. The stack of combustible materials should not be less than 90 cm;
2. The stacking of inflammable materials should not be less than 45 cm;
3. A row of nozzles shall be provided between the combustible or stack of difficult-to-burn articles, and the horizontal distance between the stacking edge and the vertical line of the nozzle shall not be less than 30 cm.
4. In addition to the requirements of Articles 1 and 2 of this Code, the nozzle layout of an elevated warehouse shall meet the following requirements:
1) The nozzles placed under the roof panel should not be more than 2 meters apart;
2) The nozzles should be arranged in layers in the shelf. The vertical height of the nozzles shall be arranged in a layered manner, which shall not exceed 4 m when storing combustible articles and not more than 6 m when storing inflammable articles;
3) If there are holes or gaps in the layered board, a heat collecting plate should be placed above the nozzle.
5. Large space buildings with an indoor clearance height of more than 8 meters may have no sprinklers under their roof or ceiling.
6. Buildings equipped with sprinkler systems shall have a ceiling and technical interlayer with a clearance of more than 80 cm from the ceiling to the slab or roof. When there is flammable material or cables or wires installed, it shall be boring. A spray head is provided in the top or technical interlayer.
7. In the area where the escalator and spiral ladder pass through the floor, nozzles should be installed or separated by water curtains.
8. Buildings and structures equipped with automatic sprinkler systems shall be equipped with nozzles in the following parts connected to them;
1) A shed for storing, loading and unloading flammable materials;
2) A gallery that transports combustible items.
9. In the buildings and structures equipped with automatic sprinkler systems, the nozzles shall be arranged in the following cases:
1) below the corridor with a width greater than 80 cm;
2) Rectangular ducts with a width greater than 80 cm or a circular duct with a diameter greater than 1 m.
3. Is the side spray nozzle in the fire sprinkler calculated according to two common nozzles?
A: No. Still according to one calculation.
4. How to arrange the fire sprinkler side spray nozzle and the lower spray nozzle of the building?
A: Side spray can be used in light dangerous and medium-risk first-class places. It is generally used in hotel rooms or small offices. The protected area looks at the automatic sprinkler atlas. The lower spray is arranged in the same way as the upright type. The ceiling type nozzle can be used without considering the beam. See the norms for the effects of obstacles.
5. Can the side-mounted fire sprinkler be installed obliquely?
A: Its pipe can be installed obliquely, but the side spray nozzle can not be installed obliquely, the reason is that its protection range is affected, and it can only be changed to the lower spray. No, the installation method of the nozzle has been fixed by its model, because its water distribution curve is specific, the side spray is also the same, and the horizontally mounted side spray can only be installed horizontally and vertically.
6. How to install the fire side spray nozzle?
A: The installation method is the same. Use the tool to install it on the branch pipe. However, it is required to set and place it. The side spray is divided into a horizontal side spray and a vertical side spray installation method is the same as the upright type upper spray is installed on the pipe, but its water spray curve and protection orientation are specified.
How about, I read the above-mentioned wonderful introduction to the fire sprinklers, and I have learned a lot about the fire sprinklers. I hope that you can learn more about home improvement knowledge through this article, and you will be able to create a more perfect home environment. Thank you for reading this article and your support and love for Xiaobian. If you want to get more information about home improvement, please continue to pay attention to the decoration home network.
A granite cutting rope saw
Jiangyin Baoneng Precision New Material Co.,LTD , https://www.baonengwire.com