Fault detection device

A technology of fault detection and detection unit, which is applied in the direction of pump testing, liquid displacement machinery, machine/engine, etc., can solve the problems of lack of rapid detection of compressor faults, reduce fault repair time, reduce production and maintenance costs, The effect of improving productivity

Inactive Publication Date: 2013-09-18
SHANGHAI SCREW COMPRESSOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the defect of lack of rapid detection of compressor faults in the prior art, and provide a fault detection device, which can quickly determine the faulty parts of the compressor by detecting each part of the compressor separately

Method used

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  • Fault detection device

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no. 1 example

[0019] The fault detection device of this embodiment includes a temperature detection unit 1, a pressure detection unit 2, a transformer detection unit 3, a controller detection unit 4, a test data injection unit 5, a display unit 6 and a stabilized power supply 7.

[0020] The test data injection unit 5 is used to input a temperature test data D1, a pressure test data D2, a pressure sensor a2, a transformer a3 and a controller a4 in a screw compressor A respectively. A voltage test data D3 and a logic test data D4, that is, the test data injection unit 5 of this embodiment inputs test data to each component of the screw compressor A, so that subsequent detection components output data by detecting each component It is the same as the expected output data to judge whether each component is operating normally.

[0021] In this embodiment, the temperature detection unit 1 is used to detect whether the output data Dout_a1 obtained from the temperature sensor a1 of the screw comp...

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Abstract

The invention discloses a fault detection device, which comprises a temperature detection unit, a pressure detection unit, a transformer detection unit, a controller detection unit and a test data injection unit, wherein the temperature detection unit is used for detecting whether the output data of a temperature sensor is within the allowable deviation range of the preset temperature output data; the pressure detection unit is used for detecting whether the output data of a pressure sensor is within the allowable deviation range of the preset pressure output data; the transformer detection unit is used for detecting whether the output data of a transformer is within the allowable deviation range of the preset voltage output data; the controller detection unit is used for detecting whether the output data of a controller is matched with the preset logic data; the test data injection unit is used for respectively inputting temperature test data, pressure test data, voltage test data and logic test data to the temperature sensor, the pressure sensor, the transformer and the controller. According to the fault detection device disclosed by the invention, each part of a compressor is respectively detected so as to quickly determine the component of the compressor, which fails.

Description

technical field [0001] The invention relates to a fault detection device, in particular to a fault detection device for a compressor, especially a screw compressor. Background technique [0002] Screw compressor is a kind of mechanical equipment with a wide range of uses, and it has been widely used in the fields of machinery, metallurgy, textile, food and so on. Most of its operation modes are 24-hour work system, so the screw compressor failure repair time greatly affects the production of the above industries, so users have higher and higher requirements for the screw compressor failure repair time. Moreover, due to the wide variety of production site environments where users use screw compressors, in many cases, due to the lack of on-site space or facilities, it brings a lot of inconvenience to the troubleshooting and restoration of the electrical control system of screw compressors. [0003] Among them, the electrical control system of the compressor is generally compo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B51/00
Inventor 陈鹏高程光明
Owner SHANGHAI SCREW COMPRESSOR CO LTD
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