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Intelligent control system for testing vacuum dry pump

An intelligent control system and intelligent control technology, applied in the direction of controllers with specific characteristics, electric controllers, etc., can solve the problems such as the inability to achieve effective management of test data, the inability to automatically combine different test data, and the lack of data analysis functions. Achieve the effect of improving test efficiency, avoiding repetitive labor, and improving control efficiency

Active Publication Date: 2022-01-04
NORTHEASTERN UNIV LIAONING +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the actual production process, there are many factors that affect the performance of the vacuum pump, such as flow rate, temperature, and different vacuum degrees, all of which will affect the pumping performance of the vacuum pump.
Therefore, such a single parameter test method is not only inefficient, but also brings a lot of inconvenience to the operator.
Moreover, the vast majority of test control systems currently do not have data analysis functions, and test and analysis are separated from each other, so that effective management of test data cannot be realized, and different test data cannot be automatically combined

Method used

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  • Intelligent control system for testing vacuum dry pump
  • Intelligent control system for testing vacuum dry pump
  • Intelligent control system for testing vacuum dry pump

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Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0090] Such as Figure 6 Shown is a hardware assembly diagram of the present invention, the main components included are vacuum chamber, pump to be tested, backing pump, gas cylinder, air heater, heating wire, sensor, controller, upper computer, water tank, valve . The pressure at the outlet pressure measurement point of the pump to be tested is controlled by the backing pump and the backing valve, and the gas in the vacuum chamber at the inlet of the pump to be tested is heated by the heating wire and the air heater. During the heating process, the gas cylinder continues to flow into the vacuum chamber. Gas is injected to maintain a stable pressure, and the cooling water in the water tank is used to cool the vacuum chamber to avoid excessive temperature. Use temperature and pressure sensors to measure the temperature and pressure of the gas at the corresponding position, and feed back the signal to the controller. The controller adjusts the heating power of the heating modul...

Embodiment approach 2

[0110] In this specific embodiment, the experimental measurement and fitting is carried out on the DSVP-2000 type screw pump to demonstrate the test and analysis process of the pump in the present invention, but the object is not limited to the screw pump.

[0111] The screw pump is tested by using the designed intelligent control system. First connect the pump to be tested to the vacuum chamber. Input the temperature in the upper computer, and when the room temperature is stable, open the valve, let the screw pump to be tested pump air to the vacuum chamber, and input the corresponding pressure value, and control the opening of the electromagnetic valve through the upper computer to maintain the pressure of the vacuum chamber. Control the opening of the gas cylinder valve and feed the corresponding flow into the vacuum chamber. After the pressure, flow, and temperature are stable, measure the measured pressure, viscosity, and displacement through the sensor, and upload the va...

specific Embodiment 3

[0152] An intelligent control system for vacuum dry pump testing, including a temperature control module, a flow control module, a vacuum acquisition module, a pressure measurement module, a frequency conversion speed regulation module, a microprocessor module, a circulating cooling system, a PLC controller, a digital model Conversion module, relay module, data display module. Among them, the temperature control module is composed of resistance heating wire, air heater, heat radiation tube, and thermocouple; the flow control module is composed of air source, flow regulating valve, flow meter, and viscometer; the vacuum acquisition module is mainly a backing pump, composed of Scroll pump, turbomolecular pump, Roots pump, screw vacuum pump and several valves; the pressure measurement module is composed of pressure sensors with different ranges, which are respectively arranged in different positions on the vacuum container and gas pipeline for pressure measurement; the circulating...

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Abstract

The invention belongs to the field of control and the field of vacuum dry pumps and particularly relates to an intelligent control system for testing a vacuum dry pump. The system comprises a PLC (Programmable Logic Controller), a temperature control module, a flow control module, a vacuum acquisition module, a pressure measurement module, a frequency conversion speed regulation module, a microprocessor, a circulating cooling system, a relay module and a data display module, high-precision linkage control over pressure, flow and temperature in a vacuum environment can be achieved, and then performance testing is conducted on the vacuum pump under the working condition. An intelligent algorithm is used in the control system, testing and analysis are combined, experimental data are intelligently analyzed and integrated, accuracy and intelligence of the experiment are improved, and meanwhile time cost is saved.

Description

technical field [0001] The invention belongs to the fields of control and vacuum dry pump, and in particular relates to an intelligent control system for vacuum dry pump testing. Background technique [0002] Testing is very important in the development, delivery and inspection process of vacuum dry pump products, which can help to intuitively discover and help solve product problems. For the detection of the pump, it is often tested by building a test system. The test of vacuum pump is the combination of vacuum technology and measurement and control technology. The combination of these two high-end technologies and their integration into industrial production is a symbol of my country's industrial progress. There are not many researches on the pump test system at home and abroad. At present, the common vacuum pump test system in China is still a single-loop control system, which can test a certain performance of the pump by adjusting a single parameter. However, in the a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B11/42
CPCG05B11/42
Inventor 刘坤关天恩雷震霖王光玉孔祥玲郝明陈树雷巴德纯
Owner NORTHEASTERN UNIV LIAONING