During the construction of new premises, as well as the overhaul of old ones, it is necessary to provide for the installation of fire safety systems. The most effective are considered modern systems using sprinkler sprinklers.
Appointment
Sprinkler - a sprinkler, which is an irrigation head mounted in a system of water pipes. This installation is called a sprinkler and is most often used in fire fighting equipment in various rooms. In a pipe network, air or water is constantly under pressure. The sprinkler water sprinkler has a hole that is sealed using a heat lock or heat-sensitive bulb. Their operation occurs at certain temperatures in the range from 57 ° C to 343 ° C.
Operating principle
When the temperature in the room rises and reaches the value necessary for the sprinkler to operate, the lock is unzipped, or the bulb bursts, and the irrigation of the protected zone begins. The response time of the low temperature sprinkler is no more than 300 seconds, and high temperature sprinkler - 600 seconds. Usually, spraying in case of fire begins 2-3 minutes after raising the room temperature. According to experts, the sprinkler water sprinkler has a serious drawback: such a response time is a rather high inertness for fire fighting.
Key Features and Types
The sprinkler water sprinkler in its design has a body, a socket and a screw made of heat-resistant materials. Explosive heat-sensitive devices can be different - a bulb or a lock. The most important technical characteristics of sprinklers include irrigation intensity, flow rate, and irrigation area. The sprinkler body is usually brass, but may also have a polymer white chrome or nickel coating.
Depending on the location during vertical installation, the following sprinklers are distinguished: the sprinkler sprinkler with the water outlet down and the sprinkler with the water outlet up. There are models that, under various operating conditions, can be installed both with the outlet down and up.
In addition, there are sprinklers for which horizontal installation is possible. Such a sprinkler is called a "universal sprinkler water sprinkler." With any installation option, water is sprayed along a spherical path, with half of the stream spraying down, the other part being reflected from the outlet up. One such sprinkler allows you to extinguish fires of varying degrees of strength in an area of 12 square meters and prevent property damage.
There are models for more effective protection of objects using foam. Moreover, the supply of water or foam is made only in hazardous areas with high temperature, and water consumption is significantly reduced.
Mounting
Any work related to the installation and operation of sprinklers should only be carried out by specialists. Personnel must have permission to work with pipelines operating under pressure and comply with all requirements of GOST.
In installations filled with water, the sprinklers are mounted vertically and can be positioned both with the outlet up and the outlet down. In air systems, only the top of the sockets, so that in the event of freezing of the accumulated condensate does not occur damage to the bulb.
Sprinklers are installed at the end of all installation work through the pipeline. The sprinklers must be tightened with a special wrench with medium force so as not to deform the threaded connection and the sprinkler outlet.
The use of sealing material is mandatory in order to ensure the tightness of the threaded connection. In this case, make sure that the seal does not get into the hole of the sprayer. In those places where there is a high probability of mechanical damage to the sprinklers, they should be covered with rigid wire gratings.
Service
In order for the fire extinguishing installation to be in working condition constantly, it is necessary to regularly inspect it.
Each sprinkler water sprinkler should be checked for corrosion and any damage. Care must be taken to ensure that there are no obstructions for irrigation and the spray coating is not damaged.
Spare sprinklers should be provided in order to quickly replace a damaged or leaking sprinkler sprinkler with a new one if necessary. Triggered sprinklers are not suitable for repair or reuse; they must be changed.
Before replacement, the fire extinguishing system is turned off, the pressure in the installation is completely relieved, water is drained, and the old sprinkler is dismantled.
Before installing a new sprinkler water sprinkler, make sure that it fully complies with the given fire extinguishing system, has the required design, temperature and response time. After everything has been completed, the system is again set to standby mode. Sprinkler life is 10 years from the release date.
Sprinkler water sprinkler significantly increases the efficiency of fire extinguishing systems, allows you to start fire extinguishing in a timely manner, and at the same time significantly saves water consumption.