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Device and method for measuring diffusion property of refrigerant/lubricating oil system

A lubricating oil and refrigerant technology, applied in the field of refrigerant/lubricating oil system property characterization, can solve the problems affecting the starting power of the compressor, etc., and achieve the effect of high test repeatability, convenient operation and simple operation

Active Publication Date: 2020-11-03
XI AN JIAOTONG UNIV
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  • Abstract
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  • Application Information

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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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  • Device and method for measuring diffusion property of 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 a method for measuring the diffusion property of a refrigerant / lubricating oil system, which are particularly suitable for measuring the diffusion property of high-viscosity lubricating oil / refrigerant. The mass diffusion coefficient measuring device is composed of a high-resistance experiment body, an experiment light path, a rotary table, a detection light source and a signal acquisition device. The experiment body is provided with four large-area observation windows to ensure large-angle laser detection. The experiment light path is built on the high-precision air cushion type optical vibration isolation platform, so that external vibration can be effectively prevented from being conducted to the experiment body, interference is generated to surfacewave fluctuation or bulk phase molecule fluctuation, and the influence of the external vibration on an experiment is avoided. The device is convenient to operate, safe and reliable, the maximum pressure borne by the diffusion property testing device is 10 MPa, and the diffusion property testing device can be used for testing the diffusion property of liquid in a high-pressure state; the diffusionproperty testing device is suitable for non-contact measurement, and can be used for measurement in a wide temperature range and at a high 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...

Claims

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Application Information

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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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