A device and method for measuring the diffusion properties of a refrigerant/lubricating oil system

A measurement method and lubricating oil technology, applied in the measurement of low-boiling point refrigerant/lubricating oil system under high pressure, and in the field of devices for measuring the diffusion properties of refrigerant/lubricating oil system, can solve the problems affecting the starting power of compressors, etc., to achieve Good atmospheric corrosion resistance, high temperature strength, and high safety factor

Active Publication Date: 2022-03-08
XI AN JIAOTONG UNIV
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Problems solved by technology

In addition, during the shutdown process of the compressor, the refrigerant gas will dissolve and diffuse into the oil pool of the compressor, and the diffusion rate of the refrigerant in the lubricating oil directly affects the equilibrium pressure of the oil pool of the compressor, thereby affecting the starting power of the compressor

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  • A device and method for measuring the diffusion properties of a refrigerant/lubricating oil system
  • A device and method for measuring the diffusion properties of a refrigerant/lubricating oil system
  • A device and method for measuring the diffusion properties of a refrigerant/lubricating oil system

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Embodiment Construction

[0034]In order to make the purpose and technical solution of the present invention clearer and easier to understand. The present invention will be further described in detail below in conjunction with the drawings and embodiments. The specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0035] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orie...

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Abstract

The invention discloses a device and method for measuring the diffusion property of a refrigerant / lubricating oil system, which is especially suitable for measuring the diffusion property of a high-viscosity lubricating oil / refrigerant. The mass diffusion coefficient measurement device is composed of a high-resistant experimental body, an experimental optical path, a rotary table, a detection light source and a signal acquisition device. The experimental body has four large-area observation windows to ensure large-angle laser detection. The experimental optical path is built on a high-precision air-cushion optical vibration isolation platform, which can effectively prevent external vibrations from being transmitted to the experimental body, thereby interfering with surface wave fluctuations or bulk molecular fluctuations, and avoiding the influence of external vibrations on the experiment. The device is easy to operate, safe and reliable. The maximum pressure that the diffusion property testing device can withstand is 10MPa, and can be used for the determination of liquid diffusion properties under high pressure; the non-contact measurement that the diffusion property testing device is suitable for can be used in a wide range Within the range of the temperature range, the measurement is carried out at a higher temperature.

Description

technical field [0001] The invention belongs to the technical field of characterizing properties of refrigerant / lubricating oil systems, in particular to a device and method for measuring the diffusion properties of refrigerant / lubricating oil systems, and is especially suitable for measuring low-boiling point refrigerant / lubricating oil systems under high pressure conditions. Background technique [0002] In the refrigeration system compressor, the lubricating oil mainly plays the roles of lubrication, sealing, cleaning, cooling, vibration reduction and noise reduction. On the one hand, the choice of lubricating oil is to consider that it has good miscibility and moderate solubility with the refrigerant used in the refrigeration system, and on the other hand, it is to choose a lubricating oil with a suitable load level and viscosity level according to the structural parameters and performance parameters of the compressor. . In addition, during the shutdown process of the c...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N13/00
CPCG01N13/00G01N2013/003
Inventor 毕胜山唐旭尧崔军卫王阳
Owner XI AN JIAOTONG UNIV
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