1. If the water distribution branch pipe is arranged under the beam, the upright sprinkler shall be used;
Explanation: when there is no ceiling in the setting place and the water distribution pipeline is arranged under the beam, the hot air flow of the fire will spread horizontally after rising to the roof. At this time, only the vertical nozzle is installed upward, so that the hot air flow can contact and heat the thermal sensor of the nozzle as soon as possible.
2. The sprinklers arranged under the ceiling shall be pendent sprinklers;
Explanation: In places with suspended ceiling, the smoke is distributed under the suspended ceiling, and the smoke from the non permeable suspended ceiling cannot reach the ceiling. The spray water distribution pipe is arranged between the ceiling and the ceiling. To realize the smoke explosion of the sprinkler in case of fire, it is necessary to connect a short riser above the pipe and install the pendent sprinkler.
3. Sidewall sprinklers can be used for residential buildings, dormitories, guestrooms of hotel buildings, wards and offices of medical buildings with the roof as the horizontal plane of light danger level and medium danger level I;
Explanation: the water distribution pipeline of the side wall type sprinkler is easy to arrange, but there are certain limitations in blasting and water distribution. Therefore, the protected place should be a place with high risk level, and the roof must be a horizontal plane, so that the smoke layer can be evenly distributed under the roof in case of fire.
4. Sprinkler with protective cover shall be used for the parts that are not easy to be impacted;
Explanation: This considers the safety of the sprinkler itself.
5 where the roof is a horizontal plane and there are no obstacles such as beams and ventilation pipes that affect the sprinkler spraying, the sprinkler with expanded coverage area can be used;
Explanation: compared with the general sprinkler, the protection area of the sprinkler with expanded coverage area is more than doubled, but the obstacles such as beams and ventilation pipes will affect the water distribution.
6. Residential buildings, dormitories, apartments and other non residential residential buildings should adopt fast response sprinklers;
Explanation: home use sprinkler should be a fast response sprinkler applicable to residential buildings and non residential residential buildings. Therefore, this article stipulates that the worst use of such nozzles in residential buildings.
7. Concealed sprinkler shall not be selected; If it is necessary, it shall only be applicable to the places with light hazard level and medium hazard level I.
Explanation: the concealed sprinkler is more and more favored by the owners because of its aesthetic advantages.
Post time: May-31-2022