A bypass type laminar flow experimental voltage stabilizer and method thereof

Abstract

The invention discloses a bypass type laminar flow experiment voltage stabilizer and a method thereof. The bypass type laminar flow experiment voltage stabilizer is provided with a water pump water outlet pipe, a valve, a bypass thin throttle pipe, a voltage stabilization tank and an experiment pipeline water supply pipe. Input water body pressure of the bypass type laminar flow experiment voltage stabilizer is large in fluctuation under influences of a water pump. For eliminating a pressure fluctuation phenomenon of a laminar flow experiment when flow rate is small, bypass pipes are arranged at the upper end and the lower end of the valve. The laminar flow experiment is performed when the valve is completely closed, and simultaneously a fluctuation water current in front of the valve only can flow through the bypass pipes to the rear of the valve. The thickness and the length of the bypass pipes can right control excess flow in a flow range needed by laminar flow. Then, secondary voltage stabilization is performed on the fluctuation water current through the bypass type laminar flow experiment voltage stabilizer, and when the fluctuation water current flows to an output end of the bypass type laminar flow experiment voltage stabilizer, voltage stabilization accuracy of the fluctuation water current is controlled within + / - 0.5mm, and therefore voltage stabilization water supply demands of the laminar flow experiment are met under direct supply conditions of the water pump. The bypass type laminar flow experiment voltage stabilizer and the method thereof solve the problem that a laminar flow experiment is difficultly stabilized under the direct supply conditions of the water pump for a long time. The bypass type laminar flow experiment voltage stabilizer is simple in structure, convenient to operate, and low in cost.

Description

Technical field [0001] The invention relates to a teaching experiment instrument. In particular, it relates to a bypass type laminar flow experimental voltage stabilizer and its method. Background technique [0002] In the teaching experiment of fluid mechanics and hydraulics, the along-the-course resistance experiment is a basic experiment project widely used in colleges and universities. The along-path resistance experiment instrument used is usually directly supplied by a water pump, which is a self-circulating water supply experiment instrument. The pressure fluctuation in the self-circulating pipeline system caused by the water pump of this experimental instrument will seriously affect the accuracy and stability of the experiment. The following takes the traditional and commonly used 7mm experimental pipeline along the way resistance experiment instrument as an example to illustrate its technical background. The technical data involved in the article are based on this exam...

AI Technical Summary

Problems solved by technology

This voltage stabilization method has the following two problems: one is that the pressure-resistant requirements of the pressure-stabilizing tank are high, and the manufacturing cost of the tank is high; the other is that there is no such tank that can meet the pressure-stabilizing requirements in the market.

An experimental instrument with a pressure fluctuation of more than 2 mm cannot meet the requirements of teaching experiments.

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