An intelligent high-flow compressed air foam jetting fire truck
A technology of compressed air foam and large flow, which is applied in fire rescue and other fields, and can solve the problems such as nozzle dust and other impurities that are difficult to clean and cannot be used normally.
Active Publication Date: 2021-09-28
湖北江南专用特种汽车有限公司
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Problems solved by technology
[0004] In order to make up for the deficiencies of the existing technology, solve the problem in the prior art that it is difficult to clean the dust and other impurities in the nozzle, and at the same time, reduce the number of internal parts of the nozzle, reduce the complexity of the structure, and improve the service life and reliability of the nozzle. The invention proposes an intelligent high-flow compressed air foam spraying fire truck
Method used
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Embodiment approach
[0041] As an embodiment of the present invention, a positioning block 33 is provided on the side of the second screen 3; a positioning groove 11 is provided on the inner wall of the nozzle 1; The position between the rings 5; the positioning block 33 is inserted into the positioning groove 11, and when the screen plate 2 3 moves, the positioning block 33 slides in the positioning groove 11 along the length direction of the nozzle 1;
[0042] When working, because the screen 2 3 is in the process of using the nozzle 1 and spraying foam, the screen 2 3 moves under the push of the foam liquid, and at the same time, after the fire is extinguished, there is no more foam spray at the nozzle 1. After the net plate 2 3 returns to its original position under the magnetic force, the protrusion 2 32 on the net plate 2 3 is inserted into the through hole 21 on the net plate 1 2 after the net plate 2 3 returns to its original position Among them, the protrusion 1 22 on the screen plate 2 i...
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The invention belongs to the technical field of fire trucks, and is specifically an intelligent large-flow compressed air foam spray fire truck, which includes a car body and a carriage; the car body includes a head and a frame; the carriage is fixedly mounted on the frame; A cab and a power unit are arranged in the front of the vehicle to drive the fire truck to drive; a compressed air foam fire extinguishing system is installed in the compartment; the foam output by the compressed air foam fire extinguishing system is transported to the nozzle through the fire hose and sprayed out; The invention has a simple structure and can effectively prevent external dust from entering into the nozzle when the nozzle is placed, which is difficult to clean and affects foam ejection.
Description
technical field [0001] The invention belongs to the technical field of fire trucks, in particular to an intelligent large-flow compressed air foam jetting fire truck. Background technique [0002] At present, the fire-fighting equipment used to fight large-scale petrochemical fires is mainly a large-flow air-breathing foam monitor and a non-breathing foam monitor. Among them, the large-flow air-breathing foam cannon is mainly based on the Venturi effect, which generates low-expansion foam through negative pressure suction. The foam liquid separation time is not long, the stability is not high, and the fire extinguishing and anti-reburning effects are limited. The large-flow non-breathing foam cannon sprays foam solution from the nozzle, which is mixed with air and foams by colliding with each other in the air. The foam performance is greatly affected by air resistance and self-dispersion, and the foam is unstable, and the liquid separation time of the foam is very short. , ...
Claims
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IPC IPC(8): A62C27/00A62C5/02A62C37/00A62C31/12A62C31/28
CPCA62C5/02A62C27/00A62C31/12A62C31/28A62C37/00
Inventor 甘子林熊景山
Owner 湖北江南专用特种汽车有限公司