A closed foam water spray system

Abstract

The present invention provides a closed foam water spray system, comprising: multiple sets of spray subsystems, the water spray module of each set of spray subsystems, the liquid outlets of the main foam module and the standby foam module are respectively connected through a proportional mixer The spray pipe network, the liquid outlet of each water spray module is equipped with a drive pump; the liquid inlet of the main foam module and the standby foam module, and the liquid outlet of the water spray module are respectively connected to the raw liquid delivery pipeline; closed state; the control device is used to control the opening of the second valve body and the driving pump when a fire occurs in the area where the corresponding sprinkler subsystem is located, and control the opening of the fourth valve body and the sixth valve body alternately for fire extinguishing. The third valve body, the fifth valve body and the seventh valve body are controlled to replenish the original foam solution; after the fire extinguishing, the first valve body, the seventh valve body and the driving pump are controlled to be linked to clean the original solution delivery pipeline. The beneficial effect is that it can meet the fire extinguishing requirements of different fire conditions, improve the service life of the pipeline, and save the fire engineering cost.

Description

technical field [0001] The invention relates to the technical field of fire fighting, in particular to a closed foam water spray system. Background technique [0002] The closed foam water spray system is a type of automatic water spray-foam combined fire extinguishing system. It adds a foam liquid supply device on the basis of the original wet automatic water spray system. The whole system is usually on alert. Once the protected object catches fire, the system can quickly spray foam to cover the protection area, prevent the fire from spreading, control the Fire, and then use fire water to put out the fire to prevent the fire from re-igniting. [0003] The existing closed foam water spray system has the following problems: [0004] 1. The foam stock solution is provided through the foam liquid supply device, but the storage capacity of the foam stock solution is limited, and it is difficult to meet the fire extinguishing needs in the case of a large fire; [0005] 2. Duri...

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Problems solved by technology

[0004] 1. The foam stock solution is provided through the foam liquid supply device, but the storage capacity of the foam stock solution is limited, and it is difficult to meet the fire extinguishing demand in the case of a large fire;

[0005] 2. When extinguishing a fire, due to the flowing foam liquid or foam water mixture in the spray pipe of the system, it is easy to cause certain corrosion to the pipe after long-term use. The existing closed foam water spray system lacks the protection of the spray pipe. cleaning after use

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