Airbag external-pressurization type mixed gas blasting determination apparatus
A technology of mixed gas and measuring device, which is applied in the direction of material explosiveness, etc., can solve the problems of inability to observe the naked eye or image, inability to test samples, and high requirements for air intake control, so as to reduce the test cost, light weight, and reduce container requirements. Effect
Active Publication Date: 2015-07-15
SHANGHAI RES INST OF CHEM IND +1
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Problems solved by technology
However, this method has very high requirements for the control of the intake volume of each gas, and it is difficult to realize;
[0006] 3. When using this method for testing, it is impossible to observe with naked eyes or images;
[0007] 4. When using this method, the demand for samples is large, and it is impossible to test a small number of samples collected on site;
[0009] The above characteristics determine that the method is relatively expensive to implement and has certain limitations.
Therefore, at present, the use of this method in China is not very common
Method used
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Effect test
Embodiment 1
[0043] like figure 1 As shown, an airbag external pressurized mixed gas explosive test device, the test device includes:
[0044] Pressurized container 11: fixed on the flat ground by a bracket; the pressurized container has a certain pressure bearing capacity, but compared with the traditional explosive container, its pressure bearing requirement is lower and the production cost is lower. The pressurized container is connected to a high-pressure gas source through a three-way valve. During the experiment, the inert gas at the required pressure is injected through the high-pressure gas source to increase the test pressure. After the experiment, the inert gas is emptied through the emptying pipeline. gas.
[0045] Flexible airbag 1: placed in a pressurized container; the flexible airbag is filled with the gas to be tested and has certain flexibility. The flexible airbag filled with the gas to be tested is placed in the pressurized container, and the pressure in the flexible ai...
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The invention relates to an airbag external-pressurization type mixed gas blasting determination apparatus. The determination apparatus comprises a flexible airbag, an electric ignition electrode, a camera, a transparent protection sheet, a pressure sensor, a gas inlet having a non-return valve, a high pressure gas source, a pressure adjusting valve, a triple valve, an evacuation pipeline, a pressurization container and the like. The pressurization container is fixed on a support, the electric ignition electrode, the camera, the transparent protection sheet and the pressure sensor are respectively fixed on the pressurization container, the pressure adjusting valve is connected with the high pressure gas source, the triple valve is connected with the gas inlet and a gas outlet, and the flexible airbag suspends in the pressurization container and is fixed with the gas inlet with the non-return valve. Compared with present general technologies, the apparatus adopting an essentially different mechanism has the advantages of high safety, simple structure, low cost, easy maintenance and suitableness for various conditions.
Description
technical field [0001] The invention relates to a device for measuring the explosiveness of a mixed gas, in particular to a device for measuring the explosiveness of a mixed gas which is pressurized outside an air bag. Background technique [0002] In industrial processes, gas reactions under high pressure conditions (greater than atmospheric pressure) are often involved, and these gases are often highly flammable, especially when several gases are mixed, the danger will be further increased. Therefore, ensure normal It is very necessary to carry out the reaction safely, and the main risk factor is the risk of explosion of the gas mixture. In order to avoid this phenomenon, it is necessary to know the deflagration property of the mixture gas and the limit mixture ratio of deflagration. [0003] At present, the combustibility of mixed gas under high pressure is mainly carried out in a rigid container, that is, a high-pressure resistant container is produced for testing. This...
Claims
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IPC IPC(8): G01N25/54
Inventor 张小沁肖秋平刘刚
Owner SHANGHAI RES INST OF CHEM IND