Uniform gas-doping generation device for impact jet flow of pipeline
A technology of impinging jet flow and gas generation, which is applied in the direction of hydraulic models to achieve the effect of increasing radial turbulence and improving the effect of aeration
Active Publication Date: 2019-12-31
NANCHANG INST OF TECH
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Problems solved by technology
However, there is no device in the prior art that can make the jet flow aeration test device meet the function of generating different uniform aerated water flows under different geometric scales, different flow velocities and other incoming flow conditions. Based on the above defects, the present invention proposes A good pipeline impingement jet uniform aerated water flow generating device
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[0028] The present invention will be further described below in conjunction with the accompanying drawings.
[0029] like Figure 1 to Figure 15 As shown, the pipeline impinging jet uniform aeration generating device of the present invention comprises an inlet section 1, aeration generating section 2, transition section 3, steady flow section 4, constriction section 5 and measuring section 6 connected in sequence. 1. Connect the aeration generation section 2 and the water pipeline, the aeration generation section 2 is welded with the transition section 3, and the transition section 3, the steady flow section 4, the constriction section 5 and the measurement section 6 are all connected by threads; the measurement section 6 includes The first outer sleeve 11, the middle sleeve 12, the first inner sleeve 13, the retractable round tube 16, the steel ball 14, the first spring, the beta-ray aeration concentration meter 7, the first outer sleeve 11, the middle sleeve 12. The central...
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The invention discloses a uniform gas-doping generation device for impact jet flow of a pipeline. The uniform gas-doping generation device comprises an inlet segment, a gas-doping generation segment,a transition segment, a current stabilization segment, a contraction segment and a measurement segment which are sequentially connected, wherein the measurement segment comprises a first outer sleeve,an intermediate sleeve, a first inner sleeve, a shrinkage-type round pipe, steel balls, a first spring and a beta-ray gas-doping concentration device, wherein central axial lines of the first outer sleeve, the intermediate sleeve and the first inner sleeve are coincided, the first inner sleeve is in threaded connection with the contraction segment, two ends of the shrinkage-type round pipe are respectively welded with an inner wall of the outer sleeve and an outer wall of the intermediate sleeve, a telescopic spring is arranged in the shrinkage-type round pipe, two circles of steel balls areclosely arranged in intermediate spaces of the intermediate sleeve and the first inner sleeve, holes are formed in corresponding positions of the first outer sleeve and the intermediate sleeve, portsof the beta-ray gas-doping concentration device extend to positions between the intermediate sleeve and the first inner sleeve, and the first outer sleeve and the intermediate sleeve can rotate aroundthe central axis. The uniform gas-doping generation device is ingenious and simple in structure and is convenient to operate, and uniformly-distributed gas-doping water flow can be formed in a pressure pipeline.
Description
technical field [0001] The invention relates to a device for generating uniform aeration of a pipeline impact jet, which belongs to the field of water conservancy. Background technique [0002] Impact jets are widely used in water conservancy projects, such as picks in water conservancy and hydropower discharge projects, falling water tongues impacting water cushion ponds, etc. The key parameters such as downstream scouring need to be estimated, which need to be demonstrated through hydraulic model test research. . However, no matter which simulation method is used, the inflow conditions and the natural rock foundation structure are very complex, which brings many disturbances to the accuracy of the simulation results. The dissimilarity of water aeration and diffusion mechanism in the model and the actual prototype, etc., make a strong "scale effect" in the test results of the pick-jet model. [0003] At present, some studies have found that aeration will significantly inc...
Claims
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Login to View More IPC IPC(8): E02B1/02
CPCE02B1/02
Inventor 姚莉陈辉石莎陈柏全吴建华
Owner NANCHANG INST OF TECH