Device for detecting fire monitor flow and hydraulic pipeline strength and pressure resistance of fire fighting truck

Abstract

The invention provides a device for detecting fire monitor flow and hydraulic pipeline strength and pressure resistance of a fire fighting truck. A hydraulic pipeline is mounted on an arm support of the fire fighting truck, the hydraulic pipeline is connected with a pressure limiting valve arranged on the fire fighting truck, and a water inlet pipeline of the pressure limiting valve is respectively connected with an electric adjustable pressure test pump and a fire monitor flow calibration mechanism through a three-way joint. The fire monitor flow calibration mechanism is provided with a watersupply pump set and an electromagnetic flowmeter connected between the water supply pump set and the three-way joint; an exhaust controller is arranged on a hydraulic pipeline at the top end of the arm support, a channel is arranged in the exhaust controller, an electric control ball valve is arranged in the channel, one end of the channel is connected with the hydraulic pipeline through a flangeplate, an exhaust pipe is arranged at the other end of the channel, and a wireless control device and a power supply module which are connected with the electric control ball valve are further arranged on the exhaust controller. Fire monitor calibration and hydraulic pipeline strength and pressure resistance testing of the elevating fire fighting truck are combined, so that the detection efficiency of the elevating fire fighting truck is improved.

Description

technical field [0001] The invention relates to the detection of the fire cannon of the fire truck, in particular to a device for detecting the flow rate of the fire cannon of the fire truck, the strength and pressure resistance of the hydraulic pipeline. Background technique [0002] Lifting fire trucks refer to fire trucks equipped with lifting booms (ladder frames), slewing mechanisms and other components, used to transport firefighters, fire-fighting materials to high altitudes, rescue trapped people or spray fire-extinguishing agents. Generally divided into climbing platform fire trucks, ladder fire trucks and elevated jet fire trucks. The working pressure of the outlet pipe of the elevating fire truck is usually not greater than 1.6MPa. According to the requirements of GB7956.12 "Fire Truck Part 12: Elevating Fire Truck", the outlet pipe of the elevating fire truck can withstand the maximum working pressure of the waterway Twice of that, no permanent deformation or st...

AI Technical Summary

Problems solved by technology

However, limited by the structure of the elevating fire truck itself, its maximum working height is often greater than the maximum working range. As a result, there is still a certain amount of air in the hydraulic pipeline during the pressure test, and the compressibility of the gas is far greater. water, so the method is time-consuming and imprecise

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