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Automatic collection device and method for smoke particles based on different time and different spaces

A collection device and smoke particle technology, which is applied in the field of fire detection research, can solve the problems of manual completion, inability to achieve automatic collection, and inability to meet the automatic collection of smoke particles, so as to achieve the effect of convenient movement

Pending Publication Date: 2022-04-29
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this device is also only for hydrocarbon fuels. Although it can collect soot particles of different heights, all operations are done manually, and automatic collection cannot be achieved.
[0006] Chinese utility model patent application CN206649630U discloses a remote control collection device for fire smoke particles, which achieves the mechanization of smoke particle collection, but the device cannot regularly collect smoke particles that vary with time and space
[0007] In summary, in the existing smoke particle collection devices, the automatic collection of smoke particles based on different time and different spaces cannot be satisfied.

Method used

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  • Automatic collection device and method for smoke particles based on different time and different spaces
  • Automatic collection device and method for smoke particles based on different time and different spaces
  • Automatic collection device and method for smoke particles based on different time and different spaces

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Prepare an oil pan of 10cm*10cm, add the combustibles to be studied; open the small door 15 of the combustion chamber 1 and put it into the oil pan, and open the air strut door 16 upwards at a certain angle for smoke exhaust.

[0052] Open the control cabinet 3, turn the main air switch of the incoming line in the cabinet to the ON position, turn on the "power supply" button 33, and power on the entire control system; check whether the touch screen 32 is lit, and check the servo motor 22 and reducer 23 Is it in normal working condition.

[0053] Observe the data of each point displayed on the touch screen 32 to confirm whether the probe 24 is at the origin position, that is, whether it is 0.1m away from the wall surface of the combustion chamber 1, if it is at the origin, then proceed to the next step, if it is not at the origin, then display by touching 32 On-screen buttons for position calibration.

[0054] Then input the appropriate sampling time according to the ty...

Embodiment 2

[0065] On the basis of the same preparatory work in Embodiment 1, study the smoke particle morphology characteristics at different heights at the same time, then ignite the combustibles and close the small door 15, and press the "start" button 34 at the same time, according to Embodiment 1 Parameter setting, mechanical device 2 starts to move after two seconds.

[0066] Driven by the servo motor 22 and the reducer 23, the mechanical arm 21 drives the probe 24 to start moving to the left. The probe 24 enters the combustion chamber 1 through the square hole on the stainless steel plate 11 and reaches a predetermined position, so that the carbon support film 25 Exposure to combustible smoke, according to the thermophoretic effect, makes the hot smoke particles adsorb on the cooler carbon support film 25 to complete the collection of smoke particles.

[0067] After reaching the set sampling time, the probe 24 automatically exits the combustion chamber 1 and returns to the original...

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Abstract

The invention relates to an automatic collection device and method for smoke particles based on different times and different spaces. The automatic collection device mainly comprises a combustion chamber, a mechanical device and a control system. The device is small in overall size, low in cost and capable of collecting fire smoke particles of various combustible materials at different time and in different spaces; a carbon supporting film is placed in a stepped hole in the front end of a probe, the time when the carbon supporting film enters a combustion chamber, the sampling time, the sampling interval time and the cycle index are adjusted through a control system according to the types of combustibles, and soot particles are collected. According to the invention, automatic collection of smoke particles at different time and in different spaces is realized through the control system, so that human errors possibly occurring during manual collection can be avoided, and the collection process is ensured to be safe and effective; the device can also be used in special environments such as toxic and harmful environments or low-pressure and low-oxygen environments, and is used for researching the morphological characteristics of smoke particles in different spaces under different conditions.

Description

technical field [0001] The invention relates to the field of fire detection research, in particular to an automatic collection device and method based on smoke particles at different times and in different spaces. Background technique [0002] Fire is the most common catastrophic accident in human production and life. With economic development and social progress, various buildings emerge rapidly, and the number and places of flammable dangerous goods are increasing, which brings fire and explosion. The potential danger is also increasing. Once a fire breaks out, it will cause huge economic losses and great casualties, and bring bad social impact. During the fire, a large amount of high-temperature, toxic and shading smoke will be produced, which will bring great difficulties to rescue work and personnel evacuation. According to statistics, the number of casualties caused by smoke poisoning or suffocation accounts for 50% to 80% of the total number of casualties. In addit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/22
CPCG01N1/2214G01N1/2226G01N2001/2285
Inventor 程旭东杨泽伟周勇张和平
Owner UNIV OF SCI & TECH OF CHINA