Device and method for measuring utilization rate of propellant by simulating capillary transport
A technology for measuring propellant and efficiency, applied in the field of electric propulsion, can solve problems such as no clear method, and achieve the effects of simple structure, easy construction and maintenance, and shortening of measurement time.
Active Publication Date: 2022-04-29
SHANGHAI INST OF SPACE PROPULSION
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Problems solved by technology
[0005] At present, there is no clear method for measuring the use efficiency of the passive liquid-supply propellant of the EFI thruster. The present invention provides a propellant utilization rate test method for simulating the propellant transport process to solve this problem.
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[0040] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.
[0041] The present invention provides a propellant use efficiency measurement device for simulating capillary transport, comprising: a weighing balance 207, an EFI thruster propellant storage tank 206, a propellant absorber 204, a propellant collecting plate 203, and a bracket 205, Such as figure 2 shown. The propellant absorber 204 has a sponge shape. The weighing balance 207 is a high-precision balance with an accuracy better than 0.1 mg. A porous plate with the same porosity as the emitter is sel...
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The invention provides a capillary transport simulation propellant use efficiency measuring device and method. The capillary transport simulation propellant use efficiency measuring device comprises a weighing balance (207), an electronic injection thruster propellant storage tank (206), a propellant absorber (204), a propellant collecting plate (203) and a support (205). One end of the propellant absorber (204) extends into the electronic injection thruster propellant storage box (206), and the other end of the propellant absorber (204) is connected to the propellant collecting plate (203). According to the method, the use efficiency of the propellant is calculated according to the mass difference measured before and after the propellant is transported, a clear scheme is provided for measurement of the use efficiency of the passive liquid supply propellant of the electronic injection thruster, the supply rate of the propellant can be increased, then the use efficiency of the propellant is measured, and the measurement time is greatly shortened.
Description
technical field [0001] The invention relates to the field of electric propulsion, in particular, to a device and method for measuring propellant utilization rate for simulating capillary transport. Background technique [0002] The EFI thruster is a new type of electric thruster using ionic liquid as the propellant. Generally, it adopts the passive liquid supply type propellant supply mode. Usually, the spongy absorber with a certain porosity is used as the transport medium and connected to the storage tank. and the projectile for propellant transport, the propellant supply method is as follows figure 1 shown. Under the action of Laplace pressure, the propellant overcomes the resistance of the absorber to its flow and is transported into the emitter. In actual work, due to the limit of capillary transport, the propellant in the storage tank cannot be transported to the projectile 100% during the transportation process, and the propellant injected into the storage tank cann...
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IPC IPC(8): G01N5/04
CPCG01N5/04
Inventor 李林杭观荣郭曼丽田雷超
Owner SHANGHAI INST OF SPACE PROPULSION