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A multifunctional CCD-visualized composite tester for spraying agent ignition

A compound test and spray technology, which is applied in the direction of instruments, measuring devices, scientific instruments, etc.

Pending Publication Date: 2017-08-15
天津海关工业产品安全技术中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there is no such test equipment in China, which belongs to filling the blank in the field of domestic dangerous goods inspection technology

Method used

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  • A multifunctional CCD-visualized composite tester for spraying agent ignition
  • A multifunctional CCD-visualized composite tester for spraying agent ignition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] ignition distance test

[0013] 1. According to figure 1 As shown, the ignition distance test of the test sample is carried out under the condition that the closed space test chamber (3) is not loaded.

[0014] 2. Turn on the test system workstation (10), controller (1), and printer (11).

[0015] 3. Sample pretreatment:

[0016] a) There should be at least three filled sprays for each sample to be tested, and at least 95% of the sample to be tested should be immersed in a water bath at 20±1°C for at least 30 minutes before each test;

[0017] b) Weigh the spray, and record the sample weight, test environment temperature, and relative humidity in the workstation (10);

[0018] c) Observe the general requirements on whether the aerosol should be shaken before the test.

[0019] 4. Test spray samples should be tested in the designed posture, such as inverted or vertical.

[0020] 5. Adjust the autosampler (14) so ​​that the test spray nozzle is at the same height as ...

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Abstract

A multifunctional CCD-visualized composite tester for spraying agent ignition is disclosed. The tester is used for detecting ignition distances for spraying agents and inflammability of a mixture in a sealed space. The tester includes automatic injection, a stepwise type automatic ignition and testing bin, an inner baffle plate, a rack, auxiliary purging, and test control operation, display and outputting systems. The automatic injection controls start of mist spraying and stops the mist spraying according to feedback of a detecting system. A stepwise type automatic ignition system meets requirements on ignition distances and sealed-space ignition tests. An area array CCD collecting card synchronously acquires and outputs combustion and deflagration images and optical intensity. A working station feeds back sample injection, fuel gas and purging in real time. Automatic sample injection, result determination, alarming and test termination are achieved by the system. In an ignition distance test, a source of ignition is ignited by the stepwise type automatic ignition system and a mist spraying ignition distance is measured. In a sealed-space ignition test, the source of ignition is ignited, mist spraying is started to reach an ignition point or no combustion, and a purging system purges the test environment. The system is fully-automatically controlled. The tester is high in accuracy and has value for detection of spraying agents.

Description

technical field [0001] The invention belongs to a dangerous goods classification tester, in particular to a multifunctional composite tester capable of completing the combustion performance of spray-type dangerous goods. Background technique [0002] As an important part of dangerous goods, aerosol dangerous goods account for a large proportion, and due to the particularity of the application field, aerosol dangerous goods have a closer relationship and contact with ordinary consumers. Affected by the content, sample material and processing technology, once the aerosol dangerous goods are not properly disposed of in the process of production, packaging, storage and transportation, secondary hazards such as spraying, bursting, burning, explosion, poisoning, etc. and human health are greatly affected. [0003] Due to the diversity of the contents of aerosols, the most likely and most harmful thing is the combustion performance. Flammable gases are often used as propellants or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/00
CPCG01N25/00
Inventor 李宁涛于艳军熊中强胡新功何成
Owner 天津海关工业产品安全技术中心
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