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Palas HMT 1000-P Heatable Test System For Oil Mist Separators

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Palas HMT 1000-P heatable test system for oil mist separators. Quality assurance and the development of filters / separators/traps should preferably be performed under test conditions that are relevant to the actual conditions encountered in practice. For this reason, oil separators must be tested at high temperatures of up to 120°C and, depending on the type of application, at high pressures. With the modular test system HMT 1000, oil separators (e.g. for the separation of blow-by aerosols in internal combustion engines or for the separation of oil mist downstream of compressors) are quickly and accurately characterized and, in particular, successfully tested under practically relevant conditions through iso thermal particle measurements up to 120°C: For measurements to ISO 17536.

Description

Palas HMT 1000-P heatable test system for oil mist separators. Quality assurance and the development of filters / separators/traps should preferably be performed under test conditions that are relevant to the actual conditions encountered in practice. For this reason, oil separators must be tested at high temperatures of up to 120°C and, depending on the type of application, at high pressures. With the modular test system HMT 1000, oil separators (e.g. for the separation of blow-by aerosols in internal combustion engines or for the separation of oil mist downstream of compressors) are quickly and accurately characterized and, in particular, successfully tested under practically relevant conditions through iso thermal particle measurements up to 120°C: For measurements to ISO 17536.

  • Fraction separation efficiency
  • Burden/hold time
  • Total separation efficiency / gravimetric analysis
  • Pressure loss

Thanks to the modular layout, the individual components of the test rig, such as the high-resolution heatable light scattering spectrometer Promo® 1000 H, the heatable dilution systems KHG 10 D, and the heatable aerosol generator PLG 2100, can be simply removed from the HMT 1000 and used for other applications, e.g. measurements directly on the engine. For many years, numerous companies all around the world have profited from the advantages of the heatable and pressure-resistant Palas® test components for iso thermal and isobaric particle size and particle quantity measurements on oil mists.

Palas HMT 1000-P filter test rigs have been used internationally with great success in the industry since 2001.

The heart of the HMT 1000 is the light scattering spectrometer Promo 1000 H, which measures the particle size and the number of particles (and therefore the concentration) independently of each other but at the same time. With the aid of the Promo® 1000 H, it is possible to perform very quick, clear, reproducible, and iso thermal measurements.

Key Features

  • 0.18um to 40um particle size range
  • Measurement and evaluation of fraction separation efficiency and burden
  • Measurements better than ISO 17536 requires
  • Iso thermal and isobaric measurement
  • All components can be heated to 120°C
  • This version of the HMT 1000 is a heatable modular testing system for oil nebulizers with +/- 200 mbar control
  • High reproducibility of the testing method
  • Internationally comparable measurement results thanks to the widespread use of the measurement system
  • Cleaning and calibration can be performed autonomously by the customer
  • Easy to operate, even untrained personnel can be instructed quickly in the use of the equipment
  • The modular layout offers increased flexibility
  • Validation of all system components and the overall system during pre delivery acceptance testing and upon delivery
  • Reliable operation
  • Short set-up times, extremely low-maintenance
  • The unit will reduce your operating costs

Applications

  • Quality assurance for oil separators
  • New and further development of oil separators, e.g. coalescence separators, cyclonic separators and other inertia separators, electro filters and filter combinations, for example:
  1. Blow-by aerosols
  2. Oil mist downstream of compressors.
  3. Cooling lubricants on machine tools.
  4. Aerosols for minimal quantity lubrication

Palas HMT1000

Advantages of optical particle measurements over purely gravimetric measurements:

Conventional quantitative gravimetric determinations are often not quick or sensitive enough and provide no information about the particle size distribution. Thanks to the excellent correlation between the quantitative distribution measurement and the gravimetric analysis, very fast and volume-relevant testing of the oil separators are assured. The determination of the clean gas concentration can be performed within 1 minute using the Promo®1000 H system.

Why use iso thermal measurements?

The viscosity of the oil and therefore the particle sizes and particle concentrations in oil mist varies as a function of the engine temperature. For this reason, oil separators must be tested at different temperatures, for example, with different particle sizes (up to approximately 5 – 8µm) and particle concentrations (approximately 10 to the power of 5 to 10 to the power of 7 particles/cm3) as well as different volume flows, in order to clearly characterize them in terms of their capacity to separate.

Changes to the separation properties of the separator, for example due to the change in volume flow, temperature, filter burden, etc. must be clearly determined through reliable online measurements or in-situ measurement. In order to avoid not only condensation effects but also evaporative effects, on the HMT 1000 the entire aerosol guide, including the preparation, sampling, and measurement volume, can be heated to 120°C. As a result, measurements of the iso thermal fraction separation efficiency can be performed. Iso thermal in-situ measurement, such as on the engine The HMT 1000 test system is mobile and has a modular layout. As a result, the individual components can also be used for other tests and particle measurements, such as in-situ measurements on the engine.

Specifications

https://www.palas.de/en/product/hmt1000

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