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Controllable variable-pressure non-constant flow water supply experimental device

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

Active Publication Date: 2022-01-11
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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  • Controllable variable-pressure non-constant flow water supply experimental device
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  • Controllable variable-pressure non-constant flow water supply experimental device

Examples

Experimental program
Comparison scheme
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 sequentially; the air compressor 1 and the high-pressure gas storage tank 2 are connected to the pressure water tank 6 through the intake pipe 3, and the automatic pressure control device 21 is respectively connected to the air compressor 1, High-pressure gas storage tank 2, intake valve 4, exhaust valve 5, water pump 10, water tank water inlet valve 11, experimental water inlet valve 14, blowdown valve 19 and pressure sensor 13.

[0023] This embodiment is applicable to the water supply condition of controllable variable pressure and high-speed wate...

Embodiment 2

[0027]The invention is suitable for the high-speed water flow experimental working condition with controllable variable pressure. Before the experiment starts, input the pressure head and flow curve required for the experiment into the automatic pressure control device 21 . The automatic pressure control device 21 automatically opens the air compressor 1 and the intake valve 4 by command, and fills the pressure water tank 6 with gas meeting the pressure requirement. During the experiment, the automatic pressure control device 21 can provide the high-pressure and high-speed water flow of the preset change process in three ways: (1) before the experiment starts, the flow in the water inlet pipe 12 of the water tank is adjusted to be the final flow of the experiment; Close the drain valve 19 at the same time as the water valve 14 to achieve the final flow required by the experiment. During this process, the intake valve 4 has no action; (2) Before the experiment starts, the flow ...

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Abstract

The invention discloses a controllable variable-pressure non-constant flow water supply experimental device, and belongs to the technical field of laboratory high-speed water flow impact experiments. After a pressure sensor signal arranged on an experimental water inlet pipe is received by a pressure automatic control device, an air compressor, a high-pressure air storage tank, an air inlet valve and an exhaust valve are automatically controlled to work cooperatively, so that high-pressure air is automatically supplemented when a pressure water head of the water inlet pipe is lowered and is automatically exhausted when the pressure water head is raised; therefore, the high-speed water flow pressure water head in the experiment is controllable. The linkage of an experiment water inlet valve, a blow-down valve and an automatic inflation device is achieved through an automatic pressure control device so that high-pressure and high-speed water flow with controllable flow can be supplied, and the requirement of the hydraulic impact experiment for the high-speed water flow is met. On the premise that the high-pressure water supply requirement of the model experiment is met, the high-pressure and high-speed non-constant flow in the preset flow change process can be provided, and therefore the requirements of the model experiment on the high-pressure and high-speed water flow in various experiment scenes are met.

Description

technical field [0001] The invention relates to the technical field of laboratory high-speed water flow impact experiments, in particular to a controllable pressure variable non-steady flow water supply experiment device. Background technique [0002] In the actual on-site scientific research work, due to the limitations of some technical problems, it is difficult to establish effective research measures on site, 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 issues need to use high-pressure and high-speed water flow under different pressures for hydraulic shock experiments, and it is necessary to provide stable pressure head to ensure the stability of high-pressure and high-speed water flow pressure head to ensure The accuracy of the experimental data of the model. Conventional laboratory water supply devices can only provide co...

Claims

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Application Information

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IPC IPC(8): G09B23/12
CPCG09B23/12
Inventor 刘甲春黄标钱宇朱志伟
Owner NINGBO UNIV