Specific heat capacity calibration device of test pack for refrigerator performance test

Abstract

The invention relates to the technical field of specific heat capacity calibration devices, in particular to a test pack specific heat capacity calibration device for a refrigerator performance test, which comprises a box body, a pressure container is arranged on the box body, and a first constant-temperature gas generation bin, a second constant-temperature gas generation bin and a vacuum pump which are matched with the pressure container are arranged in the box body; the pressure container is composed of three layers of hollow partition plates and a top cover, the three layers of hollow partition plates comprise an inner-layer partition plate, a middle partition plate and an outer-layer partition plate, the side wall of the outer-layer partition plate is connected with the top cover through a hinge, and the top cover is communicated with the outer-layer partition plate through a hose; a measuring chamber is formed between the top cover and the inner-layer partition plate, a first aerogel heat preservation layer is arranged in the measuring chamber, the first aerogel heat preservation layer is arranged on the inner-layer partition plate, a heating film is arranged on the first aerogel heat preservation layer, and a sample to be measured is placed on the heating film; the defects that the more serious cold / heat leakage of existing equipment is, the larger the influence on the accuracy of a result is and the like are overcome.

Description

technical field [0001] The invention relates to the technical field of a specific heat capacity calibration device, in particular to a specific heat capacity calibration device of a test bag for a performance test of a refrigerator. Background technique [0002] According to the requirements of the GB / T 8059-2016 standard, the test kits used in the refrigerator performance test process are divided into two types, one with a freezing point of -1°C (the thermal performance is equivalent to lean beef), and the other with a freezing point of - 5°C (thermal properties not specified), used to simulate the load in the refrigerator in actual use. The standard gives clear technical index requirements for its size and quality, while thermal performance does not give specific index requirements and assessment methods. According to the test requirements, the test pack will often go through the process of thawing → freezing → thawing. After long-term use, the thermal performance may cha...

AI Technical Summary

Problems solved by technology

[0006] The invention provides a device for calibrating the specific heat capacity of a test package used in refrigerator performance tests, which solves the defects of the existing equipment that the more serious the leakage of cold / heat is, the greater the impact on the accuracy of the results, etc.

Images