Gas-liquid two-phase flow visual experimental device in liquid ring pump
A technology of gas-liquid two-phase flow and experimental equipment, which is applied to components, pumps, pump components, etc. of pumping equipment used for elastic fluids, and can solve the difficulty of further research on the optimization design of the impeller and pump casing lines , lack of detection and experimental means, etc., to achieve the effect of saving raw materials, realizing automation, and simplifying the structure
Inactive Publication Date: 2018-09-25
山东精工泵业有限公司
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Problems solved by technology
[0003] Although researchers in related fields at home and abroad have done a lot of basic work on the internal flow and performance analysis of liquid ring pumps, due to the lack of a visual experimental device for direct observation and research on the internal flow field of liquid ring pumps for many years , the in-depth analysis of the secondary flow structure in the pump, the change law of the shape of the free interface and the relationship between them and the external characteristics of the pump lacks practical testing and experimental means, which makes it difficult to optimize the design of the impeller and the pump casing profile. Further research
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[0027] The present invention will be further described below in conjunction with embodiment:
[0028] Such as Figure 1~4 As shown, the gas-liquid two-phase flow visualization experiment device in the liquid ring pump of the present invention includes a chassis 17 and a control center 24, the control center 24 is provided with a flow calculator, and the control center 24 is arranged on the column B 25; the chassis 17 is provided with a single-shaft liquid ring vacuum pump 13, the single-shaft liquid ring vacuum pump 13 is driven by a frequency conversion motor 18, the single-shaft liquid ring vacuum pump 13 is provided with an air inlet pipeline 2, and the air inlet pipe 2 is provided with The air inlet 1, according to the direction from close to the air inlet 1 to away from the air inlet 1, the air inlet pipeline 2 is provided with a first vacuum gauge 3, an orifice flowmeter 4, a second vacuum gauge 6, and a valve A 7 in sequence (flange butterfly valve), pressure transmitt...
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The invention belongs to the technical field of liquid ring pump performance detection, and particularly relates to a gas-liquid two-phase flow visual experimental device in a liquid ring pump. The gas-liquid two-phase flow visual experimental device comprises a chassis and a control center; the chassis is provided with a single shaft liquid ring vacuum pump; the single shaft liquid ring vacuum pump is provided with an air inlet pipe; the air inlet pipe is provided with an air inlet; in a direction from a position near the air inlet to a position far away from the air inlet, the air inlet pipeis sequentially provided with a first vacuum gauge, an orifice flow meter, a second vacuum gauge, a valve A, a pressure transmitter and a check valve; the orifice flow meter is connected with a differential pressure transmitter through a flow meter pipeline; the single shaft liquid ring vacuum pump is also provided with an exhaust pipe; the exhaust pipe is communicated with a pressure vessel; thepressure vessel is provided with a level gauge and a pressure gauge. The gas-liquid two-phase flow visual experimental device disclosed by the invention can be applied to scientific experiments of multiphase fluid dynamics feature detection, and provides a theoretical and technical basis for development of a novel liquid ring pump.
Description
technical field [0001] The invention relates to a visualization experiment device for gas-liquid two-phase flow in a liquid ring pump, belonging to the technical field of liquid ring pump performance detection. Background technique [0002] A liquid ring vacuum pump is a fluid machine used to pump gas, and it can also be used as a compressor. When used as a compressor, it is called a liquid ring compressor. During the working process, the internal flow is a gas-liquid two-phase flow with a free interface, and the liquid working medium in the pump plays the role of sealing, energy transmission and cooling. Due to the harshness of the pump application environment and the complexity of the internal flow, the optimization of the hydraulic performance of vane pumps such as liquid ring pumps is a hot issue in the field of hydraulic machinery at home and abroad. [0003] Although researchers in related fields at home and abroad have done a lot of basic work on the internal flow an...
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IPC IPC(8): F04C18/344F04C28/28F04C29/00
CPCF04C18/3447F04C28/28F04C29/00
Inventor 李峰李娟孙继杰商玉玲李彪
Owner 山东精工泵业有限公司