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Gaseous extinguishing agent concentration measure apparatus

A gas fire extinguishing agent and concentration measurement technology, which is used in the field of gas fire extinguishing agent concentration measurement devices and mechanical fluid spray fire extinguishing agent concentration measurement devices, which can solve uneven temperature distribution, quantitatively describe the fire extinguishing agent concentration, and difficult gas fire extinguishing agents. Quantitative description and analysis of problems to achieve effective measurement, satisfactory test performance, and reliable data

Inactive Publication Date: 2015-03-04
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The absence of the corresponding fire extinguishing agent concentration measurement device makes it impossible to quantitatively describe the concentration of fire extinguishing agent at different locations in the application area under limited conditions such as time and space
And due to the uneven temperature distribution in the actual fire area, it is difficult to quantitatively describe and analyze the gas fire extinguishing agent in the application area as a whole

Method used

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  • Gaseous extinguishing agent concentration measure apparatus
  • Gaseous extinguishing agent concentration measure apparatus
  • Gaseous extinguishing agent concentration measure apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] In this embodiment, the gas fire extinguishing agent concentration measuring device is as follows: figure 1 As shown, it is composed of a constant temperature and constant flow micro-pressure difference generator 1, a data acquisition system 2, an air pump 3, a gas parallel device 4, a connecting pipeline 5 and a flow controller 6 connected to form.

[0017] The gas parallel connector 4 is composed of a brass cylinder material with a diameter of 36 mm and a length of 38 mm. One end of the gas parallel connector 4 has a gas outlet 4-5 with a diameter of 16 mm, and the other end has four air inlets 4-1 with a diameter of 6 mm. To 4-4, the air outlet 4-5 is the merging port of 4 air inlets, and the air outlet 4-5 uses a connecting pipe 5-5 with a diameter of 36mm to pass through the flow controller 6 and the air inlet of the air pump 3 to connect with ribs Connected, the air pump 3 takes the test sample collected by the connecting pipe 5-4 through the hole 1-3 to the hole ...

Embodiment 2

[0023] Make another set of the constant temperature and constant flow micro-pressure difference generator 1 and the gas parallel device 4 in Example 1, connect the outlets 4-5 of the two sets of gas parallel devices 4 with a three-way pipeline and then connect them to the flow control 6 Connect the signal output port 1 to port 4 of the RM417 data acquisition card with 16 input terminals of the second set of 4 micro-pressure differential sensors 2-1 with the data line to connect the 5 to 8 input terminals of the micro-pressure differential sensor The output signal of the output signal is transmitted to the computer data acquisition system, and the second set of gas fire extinguishing agent concentration measuring device can be placed in a 4U chassis, so that the 8-way gas fire extinguishing agent concentration measuring device can be realized.

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Abstract

The invention relates to a gaseous extinguishing agent concentration measure apparatus, which comprises a constant temperature constant current micro differential pressure generator, a data acquisition system, a suction pump, a gas parallel device, a connecting pipe and a flow controller; the data acquisition system is composed of a micro differential pressure sensor and a computer data acquisition system; a gas outlet is provided at one end of the gas parallel device, four gas inlets are provided at the other end, the gas outlet is connected to the gas inlet of the suction pump, the suction pump discharges the collected test samples out of the measure system through each hole and the gas parallel device, a hole is opened at the center of the constant temperature constant current micro differential pressure generator, eight apertures are uniformly opened at the surrounding of the hole, adjacent a pair of apertures in eight apertures are one group, a porous medium with easy heat transfer is placed in one aperture of each aperture, a plurality of wire pipes can be placed in other aperture, gas pressure at two ends of the wire pipes is sent to the micro differential pressure sensor, an output signal of the micro differential pressure sensor is sent to a computer data acquisition system for analysis and storage. The gaseous extinguishing agent concentration measure apparatus can rapidly and effectively measure the concentration of the gaseous extinguishing agent.

Description

technical field [0001] The invention belongs to the technical field of fire extinguishing equipment, and in particular relates to a device for measuring the concentration of a mechanical fluid spraying fire extinguishing agent - a device for measuring the concentration of a gas fire extinguishing agent. Background technique [0002] Gas fire extinguishing agent has excellent properties such as high fire extinguishing efficiency, short fire extinguishing time, good electrical insulation performance, clean and stain-free, and plays an extremely important role in protecting national property and people's life safety. [0003] After the gas fire extinguishing agent is released, the concentration distribution in the application area and the duration of a specific concentration have a significant impact on its fire extinguishing effectiveness. To comprehensively evaluate the performance of gas fire extinguishing agent, it is necessary to carry out the measurement and research of p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N11/08
Inventor 秦俊赵兰明马兴鸣韩郁翀李雨农付佳佳陶骏骏韩雪
Owner UNIV OF SCI & TECH OF CHINA