Vacuum packaging type powder fuel conveying device

Abstract

The invention discloses a vacuum packaging type powder fuel conveying device. The device is characterized by comprising a powder fuel storage box, a bag breaking blade, vacuum packaging powder cakes,a bag collecting pipe, idler wheels and a nylon rope, the powder fuel storage box comprises a storage box rear end cover, a storage box straight section and a storage box front end cover, and the storage box rear end cover, the storage box straight section and the storage box front end cover are connected through flanges, so that the powder fuel storage box is formed and used for filling of the vacuum packaging powder cakes. The storage box rear end cover is provided with a rear end cover center air inlet hole and a connecting flange, two through holes are formed in a front flange accessory and a rear flange accessory of the storage box straight section respectively, the through holes are symmetrically formed and used for being connected with the bag collecting pipe, and the storage box front end cover is of a convergent structure. Fluidized gas inlet holes are formed in the convergence section of the storage box front end cover and are in a beveled hole form, and the convergence section is connected with a powder conveying pipe through threads. According to the device, the problem of an unstable form in the powder movement process of a traditional pneumatic drive piston type powder supply device can be solved, and the engineering application prospect is wide.

Description

technical field [0001] The invention relates to a vacuum-packed powder fuel conveying device in the technical field of aerospace power. Background technique [0002] Powder engines mainly use particles such as aluminum, magnesium, and boron as fuel, and have high combustion calorific value and specific impulse. Has broad development prospects. By combining different powder fuels and oxidizers, powder engines can be expressed in various forms, such as Al / AP powder rocket engines, powder-solid combined ramjet engines, Mg / CO 2 Powder engine and AL / H 2 O ramjet engine, etc. A common challenge for different forms of powdered engines is the efficient delivery technology of powdered fuel. At present, powder fuel transportation is mainly based on pneumatic transportation. By adding a piston structure in the powder storage tank, the piston moves forward under the pressure of air pressure, and then pushes the powder to move. At the same time, the powder fuel is sprayed into the co...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a vacuum-packed powder fuel delivery device, which overcomes the disadvantages of the original pneumatic delivery method that the piston and the inner wall of the storage tank are easily stuck, uneven force on the piston, and unstable powder flow.

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