Portable gas sealability test monitoring analyzer of turbonator

Abstract

The invention discloses a portable gas sealability test monitoring analyzer of a turbonator. The portable gas sealability test monitoring analyzer controls an analog quantity input module and a thermal resistance input module through an RS485 serial bus by adopting an industrial tablet computer, realizes the acquisition and the treatment of pressure and temperature data, provides an analysis result through EXCEL, achieves the direct, reliable and accurate measurement to the pressure and the temperature inside turbonator components and changes the original condition of reading errors caused by inconvenient observation and use as well as personal factors in an air-tight test during the long-term use of a U-shaped tube mercurial barometer. The portable gas sealability test monitoring analyzer is beneficial to realizing complete automation of gas sealability test monitoring analysis of all components of the turbonator under various industrial field conditions and makes the online analysis of the gas sealability test of the turbonator under various filed environments possible; and in addition, the invention is also suitable for the automatic monitoring analysis of other pressure and temperature parameters, which take gas and liquid as mediums.

Description

technical field [0001] The invention relates to a portable steam turbine generator gas tightness test monitoring analyzer. Background technique [0002] For the safe operation of the generator set, there are strict technical requirements for the gas sealing of the hydrogen-cooled turbo-generator both in the process of generating electricity by the motor and in the production process of the unit. Therefore, in the production of the hydrogen-cooled turbo-generator During the process, the gas tightness test shall be carried out on important parts and the whole unit after assembly. Pressure and temperature are two key parameters in the gas tightness test. For a long time, the airtightness test of the hydrogen-cooled turbogenerator has been using a U-shaped tube mercury barometer to measure the pressure, and later also used an oblique differential pressure gauge to measure the pressure. No matter which method is used, the pressure value must be read regularly by a person, and th...

AI Technical Summary

Problems solved by technology

When the operator reads the pressure value, due to the inconvenient observation and use of the U-shaped tube mercury barometer, as well as the influence of the measuring ruler, the shape of the mercury surface, changes in external atmospheric pressure and temperature, and observation, the reading error is large. , affecting the accuracy of the test, and the test also consumes a lot of manpower for manual monitoring, recording and calculation

The shortcomings of the existing system are: the traditional industrial control computer is adopted, the chassis is large, its internal structure is looser than that of the industrial tablet computer, the hard disk has weak shock resistance and vibration resistance, and the external independent liquid crystal display is not resistant to water and oil, and its strength is low , can not adapt to harsh industrial environment

In the industry, the temperature test usually uses a three-wire Pt100 platinum resistor. The data acquisition unit hp34970a used in this system supports two-wire and four-wire systems but not three-wire systems. The data of the three-wire Pt100 platinum resistance is measured by the method, which takes up twice as many test channels and wastes resources, and the hp34970a is a portable structure, which is too large to be fixed

The complex structure of the system makes the cabinet body larger and difficult to move and not easy to carry. It is not suitable for use in production sites that need to be carried out, often moved without a crane or in a small space.

Images