Solid cool air micro-propelling system

A micro-propulsion and air-conditioning technology, which is applied to the propulsion system devices of space navigation vehicles, etc., can solve the problems of inability to apply long-term space missions, gas leakage, and difficulty in applying micro-nano satellites, so as to improve propulsion efficiency, reduce weight, reduce The effect of volume and mass

Inactive Publication Date: 2014-07-16
NANJING UNIV OF SCI & TECH
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Problems solved by technology

However, the conventional cold gas propulsion system is equipped with a high-pressure gas storage device with a large mass, which is difficult to apply to some micro-nano sat

Method used

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  • Solid cool air micro-propelling system

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Embodiment

[0044] The overall dimensions of the nitrogen generator 1 are as follows Figure 4 shown. The ignition device 6 in the integrated nitrogen generator 1 selects the ignition head, and the ignition powder used on the ignition head is lead styphate with less gas production, and a layer of shellac paint is added to the outer layer to seal to prevent moisture. There are two layers of powder columns in the medicine chamber, and the uppermost layer is the ignition charge 7. Thermite is used in this embodiment, and the formula is Al / CuO. The next layer is nitrogen generating agent 8, and its formula is as shown in table 2:

[0045] Table 2 Nitrogen generator formula

[0046]

[0047] The weighed NaN 3 , LiF, Fe 2 o 3 (NaCO 3 ), SiO 2 Mix well, NaSiO 3 It is then dissolved in water and heated at a constant temperature of 50°C. Dissolved NaSiO 3 The solution is added to the mixed agent, stirred evenly, and then placed in a constant temperature oven (60°C) for drying. Take i...

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Abstract

The invention discloses a solid cool air micro-propelling system. The solid cool air micro-propelling system comprises an air storage chamber, a magnetic valve and a mini-type resistive heater which are sequentially connected, wherein the air storage chamber is provided with a pressure sensor and a plurality of nitrogen generators; the mini-type resistive heater is composed of a silicon wafer and a heating resistor; the silicon wafer is internally provided with a vent groove and a Laval type nozzle; the air inlet end of the vent groove is connected with the magnetic valve; the air outlet end of the vent groove is connected with the Laval type nozzle; the heating resistor is arranged on a glass substrate; the silicon wafer is bonded with the glass substrate. The solid nitrogen generators replace a high-pressure nitrogen storage tank to store nitrogen, and the size and mass of the whole system are reduced greatly; nitrogen is heated by the mini-type resistive heater before being sprayed out from the nozzle, and then is sprayed out after reaching a certain temperature, thrust generated after the nitrogen is sprayed out is increased, the propelling efficiency of the whole micro-propelling system is improved, thrust is small and precision is high.

Description

technical field [0001] The invention relates to a micro propulsion system, in particular to a solid cold air micro propulsion system, which belongs to the field of space propulsion. Background technique [0002] In recent years, in order to meet strategic needs, all military powers are actively developing micro-nano satellites with rapid response capabilities. The micro-nano satellite formation can realize the functions of traditional large satellites, such as forming distributed SAR, communication constellation, navigation constellation, optical imaging system, etc., especially in the rapid response system and emergency system, its role is irreplaceable. Micro-nano-satellite formation flight means that the satellites cooperate with each other to realize the function of a single large satellite. Formation flying satellites can join and exit at any time, with high autonomy, and the system has high reconfiguration, redundancy, safety and reliability, which can reduce the depe...

Claims

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Application Information

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IPC IPC(8): B64G1/40
Inventor 朱朋刘旭辉沈瑞琪陈君叶迎华吴立志梁振华
Owner NANJING UNIV OF SCI & TECH
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