Micro-propellant grain pouring system and method
A pouring system and propellant technology, applied in jet propulsion devices, machines/engines, rocket engine devices, etc., can solve problems such as fast curing speed, high cost, complex structure and process, and reduce design and manufacturing costs, flow Accurate speed control and complete grain structure
Pending Publication Date: 2021-09-24
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology
However, the main molding material of this technology is light-curable resin with fast curing speed, low viscosity and small swelling, which is not suitable for other types of bonding systems, and high-viscosity propellant slurry cannot be used to prepare micro-propellant grains by this technology
In addition, the molding device includes five parts: UV light source, three-dimensional molding platform, molding control system, nozzle and spraying machine, the structure and process are relatively complicated, and the cost is high
Method used
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[0044] The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0045]In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed as limiting the invention.
[0046] refer to figure 1 As shown, the micro...
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The invention discloses a micro-propellant grain pouring system and a method, and belongs to the technical field of aerospace propulsion. The micro-propellant grain pouring system comprises a pressurizing device, a constant-temperature water bath circulating device, a vacuum device and a pouring device, the constant-temperature water bath circulating device is arranged on the periphery of the pouring device, the internal environment temperature of the pouring device is maintained through circulating water with the set temperature, the pressurizing device is connected with an adapting cover through a pressurizing pipe, the adapting cover is installed at upper end openings of the constant-temperature water bath circulating device and the pouring device in a sealed mode, propellant slurry evenly flows out from a pouring opening by pressurizing the interior of the pouring device, the vacuum device communicates with the bottom of the pouring device through a vacuum pipe, a negative pressure environment is provided for the propellant slurry in the falling process, and bubbles in the slurry are eliminated. A high-pressure gas cylinder pressurizes the interior of a lining, so that high-viscosity slurry flows out more easily, the grain pouring system is suitable for the high-viscosity slurry, the flow of the high-pressure gas cylinder can be controlled, precise control can be carried out on the pressure, and then the flow speed in the grain pouring process can be more precisely controlled.
Description
technical field [0001] The invention belongs to the field of aerospace propulsion technology, and in particular relates to a pouring system and method for micro-propellant grains. Background technique [0002] At present, the micro-power system with small thrust characteristics has broad application prospects in the attitude and orbit control of micro-satellites and precise guidance of missiles, and has become one of the research hotspots of researchers at home and abroad. Micro-propulsion systems can be divided into chemical micro-propulsion, cold air micro-propulsion and electric micro-propulsion according to different energy conversion methods. Among them, the solid chemical micro-propulsion system is applied due to its simple structure, small size, high integration, reliable operation and low cost. The outlook is good. The manufacturing process of conventional solid propellants can be divided into three categories: die-casting method, compression stretching method and c...
Claims
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Login to View More IPC IPC(8): F02K9/24F02K9/10
CPCF02K9/24F02K9/10
Inventor 胡松启刘雪莉刘林林
Owner NORTHWESTERN POLYTECHNICAL UNIV