Ethylene supply device and flow measuring method thereof

A supply device, ethylene technology, which is applied to the container filling method, the container discharge method, and the direction of fluid flow detection by measuring the pressure difference, which can solve the problems of unstable oil supply flow and phase change, and achieve stable and rapid supply and constant pressure. , the effect of accurate flow

Inactive Publication Date: 2015-05-27
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology

[0004] In order to overcome the problem that ethylene is prone to phase change under test conditions, resulting in gas-liquid coexistence and resulting in unstable oil supply flow, this invention proposes an ethylene supply device and its flow measurement method; the piston is pushed by the compensation ga

Method used

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  • Ethylene supply device and flow measuring method thereof
  • Ethylene supply device and flow measuring method thereof
  • Ethylene supply device and flow measuring method thereof

Examples

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Example Embodiment

[0023] This embodiment is an ethylene supply device and its flow measurement method.

[0024] Refer to figure 1 , figure 2 , image 3 The ethylene supply device of this embodiment consists of an ethylene cylinder 1, a filter 2, a first shut-off valve 3, a pressure reducing valve 4, a second shut-off valve 5, a third shut-off valve 6, a pressure gauge 7, a compensation gas source 8. The fifth shut-off valve 9, the sixth shut-off valve 10, the piston cylinder 11, the fourth shut-off valve 12, the solenoid valve 13, and the pressure sensor 14; the ethylene gas cylinder 8 and the ethylene inlet and outlet 20 of the piston cylinder 11 are connected by pipelines and connected A filter 2, a first shut-off valve 3, a pressure reducing valve 4, a second shut-off valve 5, a third shut-off valve 6, and a pressure gauge 7 are sequentially installed on the pipeline; the piston cylinder 11 is connected to the test model through a pipeline, and is connected to the pipeline A fourth shut-off v...

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Abstract

The invention discloses an ethylene supply device and a flow measuring method thereof. An ethylene gas cylinder is connected with a piston cylinder through a pipeline, the piston cylinder is connected with a test model through a pipeline, a compensation gas source is connected with the piston cylinder through a pipeline, wherein the ethylene gas cylinder is used for filling an ethylene gas into the piston cylinder, and connected to the test model through the pipeline; the compensation gas source is used for compensating compensation gas with stable pressure into the piston cylinder, wherein the compensation gas pushes a piston with stable pressure, so that the piston extrudes the ethylene gas with stable pressure to realize stable and quick supply of the ethylene. Meanwhile, the ethylene supply device precisely controls pressure of the ethylene gas which enters the piston cylinder through a solenoid valve, so that the working pressure is lower than a liquidation pressure point at a local temperature all the time, an ethylene phase change problem in a working process is avoided, the mass of the ethylene gas fed into a fuel cylinder is obtained by measuring the pressure and the volume of the ethylene gas in the piston cylinder, and the flow of the ethylene is accurately calculated and obtained by measuring ethylene outflow time.

Description

technical field [0001] The invention relates to the field of aerospace ethylene fuel engines, in particular to an ethylene supply device and a flow measurement method thereof. Background technique [0002] At present, great progress has been made in the development and test flight of hypersonic vehicles. However, the cost of flight tests is relatively high, and ground tests are the main means of engine design and performance evaluation. Often, the acquisition of accurate parameters from ground tests plays a significant role in the design of the engine and the prediction of the problems that may be encountered in the actual flight of the engine; The most commonly used engine fuels are hydrogen, ethylene, and kerosene. The fuel equivalent oil-air ratio is an important parameter for engine operation, and the accuracy of the equivalent oil-air ratio measurement has a great impact on engine performance evaluation. Hydrogen flow can be measured by gas volume flowmeter and pressu...

Claims

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Application Information

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IPC IPC(8): F17C5/06F17C13/02F17C13/04G01F1/34
Inventor 陈亮宋文艳王艳华李建平肖隐利樊庆骦
Owner NORTHWESTERN POLYTECHNICAL UNIV
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