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A soft closed-circuit cycle dust explosion simulation test device and its application method

A closed-circuit cycle and dust explosion technology, applied in the field of safety testing research, can solve problems such as cumbersome operation steps, heavy equipment, and limitations in actual use, and achieve high test success rate, high reliability, and reduced damage.

Active Publication Date: 2019-11-12
SHANGHAI RES INST OF CHEM IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, most of these devices are heavy in equipment, complex in structure, and cumbersome in operation steps, so they cannot be conveniently used for dust explosion simulation tests, and their actual use is greatly restricted.

Method used

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  • A soft closed-circuit cycle dust explosion simulation test device and its application method

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Experimental program
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Effect test

Embodiment 1

[0027] Such as figure 1 As shown, a soft closed-circuit cycle dust explosion simulation test device includes a polymer film U-shaped bag 1, an electric fuse 2, a high-speed turbo fan 3, a fan duct 4, a plate valve 5, a dust sampling disc 6, an electromagnetic type clutch 7 and drive motor 8,

[0028] There are two electric fuses 2, which are respectively arranged in the two legs of the polymer film U-shaped bag 1, and can be connected to the controller through wires to set the ignition time difference to form a double electric fuse igniter.

[0029] The high-speed turbofan 3 is placed in the fan duct 4, and the two high-speed turbofans 3 and the peripheral fan duct 4 form two ducted fans, which reduces the noise of the device, weakens the induced resistance, and increases the fan capacity. thrust. One end of the two fan ducts 4 is respectively connected to the openings of the two legs of the polymer film U-shaped bag 1, and an air inlet channel is arranged under the other en...

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Abstract

The invention relates to a soft closed circulation dust explosion simulation testing device which comprises a polymer film U-shaped bag (1), an electric heating fuse (2), a high-speed turbine fan (3), a fan tunnel (4), a plate valve (5), a dust feeding disc (6), an electromagnetic clutch (7) and a driving motor (8), wherein the electric heating fuse (2) is arranged inside the polymer film U-shaped bag (1); the high-speed turbine fan (3) is arranged inside the fan tunnel (4); the fan tunnel (4) is arranged at the opening of the polymer film U-shaped bag (1); the plate valve (5) is arranged at one end of the fan tunnel (4); the dust feeding disc (6) is arranged at the bottom of the polymer film U-shaped bag (1); one end of the electromagnetic clutch (7) is connected with the high-speed turbine fan (3); and the other end of the electromagnetic clutch (7) is connected with the driving motor (8). Compared with the prior art, the device provided by the invention has the characteristics of being high in security, high in reliability and high in testing success rate; and due to unique design, damage of explosion to fan blades is reduced, the service life of the device is greatly prolonged, and the use cost of the device is lowered.

Description

technical field [0001] The invention belongs to the field of safety test research, and in particular relates to a soft closed-circuit cycle dust explosion simulation test device and a use method. Background technique [0002] With the development of national economy and modern industry, people pay more and more attention to safety production. Dust explosion, as a kind of production accident with serious harm and destructive power, naturally arouses people's wide attention. [0003] At present, people have developed many research and test devices about dust explosion, such as patent application 201410179077. A pair of perspective mirrors on the top, and a focusing schlieren system arranged outside the explosion chamber; the pair of perspective mirrors are symmetrically arranged on the chamber walls on both sides of the center line of the explosion chamber, and are respectively denoted as the first perspective mirror and the second perspective mirror. Two perspective mirrors...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N25/54
CPCG01N25/54
Inventor 张小沁孙钰朋周勇明肖秋平董学胜
Owner SHANGHAI RES INST OF CHEM IND
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