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A controllable variable pressure unsteady flow water supply experimental device

An experimental device and constant flow technology, applied to teaching models, instruments, educational appliances, etc., can solve the problems of unable to provide stable high pressure and preset flow rate changes, and achieve the effect of ensuring stability

Active Publication Date: 2022-05-27
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that conventional experimental devices cannot provide stable high pressure and preset flow rate changes, and propose a controllable variable pressure non-constant flow water supply experimental device

Method used

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  • A controllable variable pressure unsteady flow water supply experimental device
  • A controllable variable pressure unsteady flow water supply experimental device
  • A controllable variable pressure unsteady flow water supply experimental device

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Experimental program
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Effect test

Embodiment 1

[0022] A controllable variable pressure non-constant flow water supply experimental device, comprising: an underground pool 9, a water pump 10, a water tank inlet valve 11, a water tank inlet pipe 12, a pressure water tank 6, a pressure sensor 13, an experimental water inlet valve 14, and an experimental water inlet pipe 15. The experimental model 16, the experimental drain valve 17, and the experimental drain pipe 18 are connected in sequence; the air compressor 1, the high-pressure air storage tank 2 are connected to the pressure water tank 6 through the air inlet pipe 3, and the pressure automatic control device 21 is respectively connected to the air compressor 1, High pressure air storage tank 2 , intake valve 4 , exhaust valve 5 , water pump 10 , water tank inlet valve 11 , experimental water inlet valve 14 , drain valve 19 and pressure sensor 13 .

[0023] This embodiment is applicable to the working condition of water supply with controllable variable pressure high-spee...

Embodiment 2

[0027]The invention is suitable for the experimental working condition of high-speed water flow with controllable and variable pressure. Before the experiment starts, input the pressure head and flow curve required by the experiment into the pressure automatic control device 21 . The pressure automatic control device 21 automatically opens the air compressor 1 and the air intake valve 4 through an instruction, and fills the pressure water tank 6 with gas that meets the pressure requirements. During the experiment, the automatic pressure control device 21 can provide the high-pressure high-speed water flow with the preset change process in three ways: (1) Before the experiment starts, adjust the flow rate in the water inlet pipe 12 of the water tank to be the final flow rate of the experiment, and start the experiment through the instruction during the experiment. The drain valve 19 is closed at the same time as the water valve 14 to achieve the final flow required by the exper...

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Abstract

The invention discloses a controllable variable pressure non-constant flow water supply experiment device, which belongs to the technical field of laboratory high-speed water flow impact experiments. After the pressure automatic control device receives the signal of the pressure sensor arranged on the experimental water inlet pipe, it automatically controls the air compressor, high-pressure gas storage tank, intake valve and exhaust valve to work together to achieve automatic replenishment of high-pressure gas when the pressure head of the water inlet pipe decreases. And when the pressure head rises, the high-pressure gas is automatically discharged to realize the controllability of the high-speed water flow pressure head in the experiment. The linkage of the experimental water inlet valve, sewage valve and automatic inflation device is realized through the automatic pressure control device to supply high-pressure and high-speed water flow with controllable flow rate to meet the high-speed water flow requirements of the hydraulic impact experiment. On the premise of meeting the high-pressure water supply requirements of model experiments, the present invention can provide high-pressure, high-speed unsteady flow with a preset flow change process, thereby meeting the requirements of model experiments for high-pressure, high-speed water flow in various experimental scenarios.

Description

technical field [0001] The invention relates to the technical field of laboratory high-speed water flow impact experiments, in particular to a controllable variable pressure non-constant flow water supply experiment device. Background technique [0002] In the actual field scientific research work, due to the limitations of some technical problems, it is difficult to establish effective research measures in the field, and it is necessary to establish corresponding experimental models in the laboratory for mechanism research. With the in-depth development of research, more and more model studies of scientific problems require the use of high-pressure and high-speed water flow under different pressures to conduct hydraulic shock experiments, and it is necessary to provide a stable pressure head to ensure the stability of the high-pressure and high-speed water flow to ensure the stability of the pressure head. Accuracy of model experimental data. Conventional laboratory water ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09B23/12
CPCG09B23/12
Inventor 刘甲春黄标钱宇朱志伟
Owner NINGBO UNIV