Intelligent detection control method of vacuum pump and device thereof

An intelligent detection and control device technology, applied in pump control, liquid variable displacement machinery, machine/engine, etc., can solve problems such as difficult control, up and down fluctuations, unsuccessful startup, etc., and achieve good application value and social value.

Inactive Publication Date: 2010-05-26
孙广雨 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In actual use, there are the following problems: the judgment method of method 1 is only suitable for the vacuum pump to transport water or other conductive liquids, which limits the scope of use of the vacuum pump; the timing method of method 2 can solve the start-up problem, but the sealing of the vacuum pump in long-term use When the conditions get worse, the time required for vacuuming often changes; at th...

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  • Intelligent detection control method of vacuum pump and device thereof
  • Intelligent detection control method of vacuum pump and device thereof
  • Intelligent detection control method of vacuum pump and device thereof

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Embodiment Construction

[0044] Various embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0045] Please refer to figure 1 As shown, the pressure principle model of the present invention is very clear. Assume that when the vacuum pumping device is started, the air pressure in the vacuum pump is a standard atmospheric pressure. As the vacuuming progresses, the air pressure in the pump gradually decreases until it is below the 0MPa line. When it is below the 0MPa line, the liquid column in the vacuum pump inlet pipe vibrates up and down under the influence of gravity and unstable air pressure, and its liquid level also fluctuates up and down. At this time, the air pressure in the vacuum pump is basically in a negative pressure state, but it is not stable. How to accurately judge the vibration is relatively regular, that is, to grasp the timing of vacuum pump startup.

[0046] t 0 The time indicates that the vibration of the liquid ...

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Abstract

The invention discloses an intelligent detection control method of a vacuum pump and a device thereof. The method comprises the following steps: receiving an initiated input signal, and sending out a pressure detection signal; carrying out real-time detection on the pressure in the vacuum pump, and outputting pressure data; receiving the pressure data in real time; judging to determine whether an output pump meets the signal of initiating condition or not by combining a plurality of preset threshold value parameters according to the preset logic; and initiating the vacuum pump when the signal that the pump meets the initiating condition is received. The invention judges the initiation of the vacuum pump matching with a vacuum extractor in real time, and carries out high-precision, stable and effective control on the initiation of the vacuum pump, thus having better application value and social value.

Description

technical field [0001] The invention relates to a detection and control method and its device, in particular to an intelligent detection and control method of a vacuum pump and its device. Background technique [0002] With the development of science and technology, all kinds of pumps are used in various fields. Among them, especially represented by vacuum pumps, they are widely used. [0003] Before the vacuum pump starts, it needs to keep the vacuum in the pump body. Otherwise, the pump will be in an idle state, which will damage the pump body and the sealing structure of the pump. Therefore, before use, it is necessary to add water. [0004] The traditional way is to manually add water or use a water diversion device, which often requires manual participation, which not only wastes manpower, but also cannot accurately grasp the timing of starting the vacuum pump. [0005] In the prior art, there has been a water diversion device that can be started automatically, whic...

Claims

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Application Information

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IPC IPC(8): F04B49/02
Inventor 孙广雨赵彩霞
Owner 孙广雨
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