The necessity of particle size detection for turbine oil in the power industry

The necessity of particle size detection for turbine oil in the power industry

Turbine oil, commonly known as turbine oil, is an important lubricating medium in power plants and is mainly used in the lubrication and speed control systems of steam turbine generators. With the rapid development of the power industry, the quality of turbine oil will directly affect the safe and economic operation of turbine units. This requires us to analyze the function and properties of turbine oil, in order to identify the reasons for changes in oil quality, so that we can develop targeted measures in future work to ensure the quality of turbine oil.

After long-term operation, the turbine oil will experience aging, and it will invade granular substances that are insoluble in oil, such as welding slag, oxide skin, metal pins, sand particles, dust, etc. The turbine oil contains mechanical impurities, especially hard solid particles, which can cause the speed control system to jam, wear on the rotating parts of the unit (bearings, bushings), and in severe cases, cause accidents such as unit runaway, posing a serious threat to the safe operation of the unit.

                         Turbine oil with different operating times

In the power industry, the particle size of turbine oil is a necessary inspection item. Traditional oil quality testing lacks a specialized particle counter, and expensive online detectors are expensive and cannot be applied to online monitoring of turbine oil quality. The current visual or magnifying glass inspection methods cannot timely detect the phenomenon of excessive cleanliness of turbine oil, and fail to timely detect a large amount of solid particle pollutants in turbine oil. Usually, measures are only taken after oil particle size pollution has caused harm to the system. Serious damage to the unit journal and bearing has occurred in the past. Therefore, using qualified testing equipment to test the cleanliness of the turbine oil used and implementing online cleanliness testing for long-term operating units is an important way to timely control pollution and reduce the harm of oil pollution.

                             A certain power plant laboratory

The liquid automatic particle counter working on the principle of light resistance has become a widely accepted tool for measuring oil pollution. The portable particle counter developed by puluody Measurement and Control adopts the light ancestor particle detection technology and the classic methods of NAS1638 and ISO4406 in the oil industry. It can also be equipped with multiple standards according to user requirements.

The classic eighth generation application software platform allows for convenient setting and operation of cleaning, detection, calibration, and calibration modules. It has built-in thresholds, particle size curves, and pulse resistance values, and can set any channel particle size value.

A brand new microcomputer color screen display with built-in operating system and micro printer, allowing for direct testing and printing without the need for external computers and printers.

Built in operating system and micro printer, allowing for direct testing and printing without the need for external computers and printers.

Equipped with a standard serial RS232 port, it can be connected to an external computer to store detection results, facilitating data classification and retrieval.

It can be calibrated according to standards such as GB/T18854-2002 (ISO11171-1999, JJG066-95).

Evaluation criteria: Meet ISO4406-99, ISO4406-87, NAS1638, SAE AS 4059D, etc;

Testing methods: ISO11500, DL/T432;

Test calibration: GB/T18854, ISO4402, ISO11171, JJG066;

Operation mode: Color LCD touch screen operation;

Detection range: 1-450 μ M

Sampling method: precision metering pump;

Accuracy:<3% typical value;

Number of channels: 1024, can count particles in any size range of 8, 16, or 32;

Result storage: No less than 20000 sets (can be connected to USB flash drives, unlimited storage)

Online pressure: 0-0.6MPa (excluding pressure reducing valve); 0-50MPa (including pressure reducing valve);

Test viscosity: offline 0-99mm2/s; Online 0-500mm2/s;

Sampling flow rate: 10mL/min~60mL/min;

Cleaning flow rate: 20mL/min~150mL/min;

Fluid temperature: 0 ℃~80 ℃;

Environmental temperature: -15 ℃~50 ℃;

Interface method: RS232 or R485 to USB or USB interface; Customizable size;

Display operation: Color LCD screen;

Operation method: Finger touch screen;

Analog output: 4mA~20mA interface; Equipped with over limit alarm function (customizable);

Reporting method: Particle count/ml and pollution level;

Input voltage: 100V~265V, 50Hz~60Hz;

In summary, the integration of oil monitoring system technology with the rapidly developing high-tech is the driving force for its development. With the rapid development of computer technology, network communication technology, and data fusion technology, oil monitoring technology is moving towards automation, intelligence, networking, and remote direction; The oil monitoring and diagnosis mode is developing towards the direction of integrating multiple monitoring technology means, that is, multi monitoring parameter data fusion diagnosis. Prodi Measurement and Control can solve your troubles in the field of oil monitoring.

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