Activated water spray device heated under pressurization

Abstract

An activated water spraying device heated under pressurization, including a water adding pipeline, a spraying pipeline, a pressurizing pipeline, a PLC control system, and a liquid level alarm device connected to it, a heating device, a safety valve and a second pressure transmitter The high-pressure and high-temperature tank body, the water adding pipeline, the pressurizing pipeline and the injection pipeline are all connected to the tank body, the water adding pipeline, the pressurizing pipeline, the injection pipeline, the heating device, the liquid level alarm device and the second pressure changer The transmitters are electrically connected with the PLC control system. The present invention does not need to pressurize the water flow to 8-12MPa before spraying, and the pressure of the system pipeline is relatively low, which can form fine water mist with extremely fine particles and will not settle rapidly, and can avoid the oxygen being entrained into the fire scene under high-pressure spraying. Avoid pipeline icing, effectively improve the water mist fire-fighting ability, reduce the cost of water mist fire extinguishing devices, and can easily adjust and select the best parameters of "water mist", and can safely and reliably know the liquid level in the tank as an alarm, This prevents the liquid level from getting too low to spray or allowing the heating unit to run dry.

Description

Technical field: [0001] The invention relates to a water spray device, in particular to an activated water spray device heated under pressurization. Background technique: [0002] In order to increase the utilization rate of water in the fire extinguishing process and minimize the loss of water head, conventional water spray devices generally use high-pressure pumps to spray water mist jets after pressurization, so as to improve the fire extinguishing performance of water. However, this type of equipment has the following four obvious deficiencies: 1. The high-speed water mist jet will deliver a strong airflow to the fire source, and the oxygen in the airflow will support combustion. Instead of being unable to extinguish the fire, it may accelerate its combustion; 2. It is impossible to form a stable "water mist" that can cope with various situations and ensure comprehensive fire extinguishing; 3. When the temperature is too low in winter, the hose and water gun will freeze ...

AI Technical Summary

Problems solved by technology

However, this type of equipment has the following four obvious deficiencies: 1. The high-speed water mist jet will deliver a strong airflow to the fire source, and the oxygen in the airflow will support combustion. Instead of being unable to extinguish the fire, it may accelerate its combustion; 2. It is impossible to form a stable "water mist" that can cope with various situations and ensure comprehensive fire extinguishing; 3. When the temperature is too low in winter, the hose and water gun will freeze quickly ;4. The pressurized water belt is short, and the number of fire water guns used to transport water mist jets is limited. The reason is that when the pressure is high, the pipeline cannot be too long, and multiple spray guns cannot be used in parallel at the same time

It is difficult to make the droplet reach the particle size of 1-5 μm in the conventional way of pressurizing to obtain spray atomization, and the initial momentum of the spray is too large. How to optimize the pressure and spray is currently difficult to solve

In addition, the use of simple eyepieces will cause the risk of bursting, and the commonly used liquid level alarm devices, such as float or liquid level float, can prevent the liquid level from being too low to spray or make the heating device dry, but the float type The liquid level alarm device is easy to be crushed or exploded, while the liquid level float type cannot withstand pressure, and the effect of both is not good.

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