Test apparatus and test method of dissolubility and viscosity

A testing device and solubility technology, which are applied to measurement devices, sampling devices, flow characteristics, etc., can solve the problems of time-consuming, cumbersome testing process, and low precision, and achieve the effects of convenient operation, simple structure and high precision.

Active Publication Date: 2016-10-05
ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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  • Abstract
  • Description
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Problems solved by technology

However, the testing process using the current testing devic

Method used

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  • Test apparatus and test method of dissolubility and viscosity
  • Test apparatus and test method of dissolubility and viscosity
  • Test apparatus and test method of dissolubility and viscosity

Examples

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[0082] Example 1

[0083] (1) Preparation

[0084] a. Clean each pipeline, each valve and sealed container 5 of the solubility and viscosity test device of the present invention;

[0085] b. Weigh the mass of the sampler 20 and mark it as m;

[0086] c. Inject 500ml of 1# refrigerating machine oil into the sealed container 5, and seal the sealed container 5;

[0087] d. Close the third valve 21 and the fourth valve 10, open the fifth valve 11, the first valve 15 and the second valve 19, and draw a vacuum for 30 minutes to bring the vacuum degree in the sealed container 5 and each pipeline to 10 -2 Below Pa, stop evacuation, stand still for 5 minutes, observe whether the vacuum degree changes, if there is an increase, check each pipeline and threaded sealing part, repeat the vacuum, if the vacuum degree does not change, go to the next step;

[0088] e. Close the second valve 19, the first valve 15, and the fifth valve 11 in turn, open the fourth valve 10, inject the R410A refrigerant into...

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Abstract

The invention discloses a test apparatus and a test method of dissolubility and viscosity. The apparatus includes a sealed container which accommodates a mixture solution including to-be-tested refrigerating machine oil and a refrigerant, a temperature constant system, a vacuumizing system, a pressure test system, a temperature detection system, a viscosity test system, a sampling system, a refrigerant filling system and a stirring system, wherein the sealed container is arranged in the temperature constant system; the vacuumizing system, the pressure test system, the temperature detection system, the viscosity test system, the sampling system, the refrigerant filling system and the stirring system are all connected to interior of the sealed container. The test apparatus has simple structure, is convenient to use, is safe and reliable and can test both the dissolubility and viscosity at the same time, thereby simplifying test process and increasing test speed. The dissolubility is calculated through a weighing method, so that the method, compared with a volume calculation method in the prior art, has simple process and high precision.

Description

technical field [0001] The invention relates to the technical field of refrigeration, in particular to a device and a method for testing the solubility of a refrigerant in refrigerating machine oil and the viscosity of a mixed solution of a refrigerant and refrigerating machine oil. Background technique [0002] Refrigeration oil is an important lubricating fluid in the refrigeration system, and it has a close relationship with the refrigerant in the system cycle. In the compression refrigeration cycle, the refrigerant will be in contact with the refrigeration oil of the compressor, and the refrigeration oil will enter the heat exchange equipment with the refrigerant, thereby affecting the refrigeration system. Among them, the influence of refrigerating machine oil on the refrigerating system is related to the state of dissolution between the refrigerant and refrigerating machine oil. [0003] When the miscibility between the refrigerant and the refrigerating machine oil is...

Claims

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Application Information

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IPC IPC(8): G01N11/00G01N5/00G01N1/10
Inventor 史正良苏圣桐郭小青陈定川
Owner ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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