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Visual device of filling state of liquid pipeline

A liquid pipeline and filling state technology, which is applied in the field of liquid pipeline filling state visual device, can solve the problem of small working flow rate of hydrazine propellant, and achieve the effect of convenient connection

Inactive Publication Date: 2010-09-22
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The working flow rate of the hydrazine propellant used by Arcjet is very small, generally only 10mg / s~60mg / s, and the pipeline in front of the engine needs to be pre-filled. Therefore, Arcjet needs a device that can judge the filling status of the pipeline. Currently, There is no such a device specially designed for Arcjet in China that can judge the filling status of the pipeline

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  • Visual device of filling state of liquid pipeline
  • Visual device of filling state of liquid pipeline
  • Visual device of filling state of liquid pipeline

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Embodiment Construction

[0014] The specific implementation manner of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0015] Depend on figure 1 It can be seen that the liquid pipeline filling visualization device described in the present invention consists of a glass tube 1, a first sealing gasket 2, a fixed shell 3, a rotatable shell 4, a first fastener 5, a connecting piece 6, a positioning pin 7, a first Two fasteners 8 and a second gasket 9 are formed.

[0016] The glass tube 1 is the core component of the visual device for filling the liquid pipeline. It is the core technology of the present invention to connect the glass tube 1 to the liquid pipeline and ensure that the liquid will not leak. The glass tube 1 is installed and positioned through the fastener groove 10 on the lower end surface of the first fastener 5 and the fastener groove 10 on the upper surface of the second fastener 8, and the first gasket 2 and the second sealin...

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Abstract

The invention provides a visual device of filling state of a liquid pipeline, in particular to a visual device of filling state of a hydrazine propellant pipeline of an electric arc heating engine (Arcjet). A transparent glass tube is used for observing the filling state of the liquid pipeline; the glass tube is embedded into a specially designed fastener and is connected with the liquid pipeline; and the glass tube is arranged on a sealing pad by pretightening force between the fastener and a fixed shell screw thread so as to realize sealing. The invention has the advantages that whether theliquid pipeline is filled can be judged by visual sense; the liquid in the pipeline can not be leaked, and two interfaces with the liquid pipeline are provided to facilitate the connection with the liquid pipeline.

Description

technical field [0001] The invention belongs to the field of engines, and in particular relates to a visual device for the filling state of a liquid pipeline. Background technique [0002] Arcjet, a low-power arc-heating engine of 0.1kW to 3kW, has the advantages of high specific impulse, small thrust, high control precision, and simple structure. Arcjet anhydrous hydrazine N 2 h 4 The propellant can not only obtain higher performance, but also share the propellant tank and valve with the chemical propulsion system, which can make the structure of the propulsion system simpler and lighter, so it has more advantages in engineering applications. [0003] The working flow rate of the hydrazine propellant used by Arcjet is very small, generally only 10mg / s~60mg / s, and the pipeline in front of the engine needs to be pre-filled. Therefore, Arcjet needs a device that can judge the filling status of the pipeline. Currently, There is no such device specially designed for Arcjet in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02K9/60
Inventor 汤海滨施陈波张莘艾钟凌伟
Owner BEIHANG UNIV