Full-automatic controllable waterhead constant-flow water supply device

Abstract

The invention discloses a full-automatic controllable waterhead constant-flow water supply device, and belongs to civil engineering experimental apparatuses. Through cooperation of a circuit assembly,an air pump, a water pump, a plurality of electric control gates and all kinds of sensors, the device achieves flexible setting and a corresponding capability of stabilizing waterhead and prevents the defects that the waterhead is supplied unstably by traditional Mariotte bottles and the traditional Mariotte bottles cannot be used in a high temperature environment; the device is novel, reasonableand simple in structure, easy and convenient to operate, low in labor intensity, high in precision, stable and reliable during operation and running and capable of achieving automated operation, reducing operator number and ensuring the stable waterhead required by mating experiments.

Description

technical field [0001] The invention belongs to civil engineering experiment instruments, and mainly relates to a water supply device for providing a constant water head. Background technique [0002] In geotechnical experiments such as soil infiltration and evaporation, a water supply device with a constant water head is required. At present, the Marriott bottle is commonly used, which communicates with the atmosphere through a glass tube to adjust the pressure in the bottle to be the same as the water surface pressure at the same level as the air inlet, thereby controlling the water flow at the water outlet to be a constant flow. The Marriott bottle has the following four significant disadvantages: 1. It is bulky and cannot replenish water in the test; 2. In practical applications, the pressure in the bottle needs to be reduced to a certain extent to inhale air to balance the pressure in the bottle. At this stage, the pressure inside the bottle always fluctuates within a ...

AI Technical Summary

Problems solved by technology

The Marriott bottle has the following four significant disadvantages: 1. It is bulky and cannot replenish water in the test; 2. In practical applications, the pressure in the bottle needs to be reduced to a certain extent to inhale air to balance the pressure in the bottle. At this stage, the pressure inside the bottle always fluctuates within a certain range, and the height of the water head provided by it cannot achieve a stable effect; 3. The Marriott bottle is prone to lose the ability to control the water head in a high temperature environment; 4. The reading is easy to cause artificial error

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