Environmental test equipment for cooperatively controlling salt mist concentration and relative humidity

A relative humidity and environmental test technology, applied in the direction of simultaneous control of multiple variables, non-electric variable control, control/regulation system, etc., can solve the problems of electrical equipment parts corrosion, equipment failure, high relative humidity, etc., and achieve dynamic balance , easy automation, simple control method

Active Publication Date: 2021-10-19
CHINA NAT ELECTRIC APP RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When using the salt spray test to carry out environmental adaptability research on electrical equipment, because the existing test equipment and methods have a rapid acceleration effect, the different parts of the electrical equipment will quickly undergo severe corrosion, which will cause the failure of the equipment. It is impossible to reproduce different types of failures that may occur in electrical equipment during actual use
[0003] Furthermore, the relat...

Method used

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  • Environmental test equipment for cooperatively controlling salt mist concentration and relative humidity
  • Environmental test equipment for cooperatively controlling salt mist concentration and relative humidity
  • Environmental test equipment for cooperatively controlling salt mist concentration and relative humidity

Examples

Experimental program
Comparison scheme
Effect test

test example 1

[0052] When the environmental test equipment is working, the fixed dry salt fog concentration is 3000mg / m 3 The relative humidity is 40%. Setting the laboratory requires environmental parameters: temperature is 35 ° C, relative humidity is 80%, salt fog concentration is 500 mg / m 3 . The relative humidity of the adjustment air should be set to 88%, the dry salt fog atmosphere and the adjustment of the air volume ratio of 1: 5. When launching an environmental test equipment, the device first produces a fixed concentration of 4000 mg / m by using a dry salt fog occurrence system 1. 3 The dry salt mist atmosphere, the dry salt fog occurrence system 1, by the first temperature adjustment module 51, the temperature is controlled to 35 ° C, and the relative humidity of the first humidity adjustment module 61 is adjusted; at the same time by air conditioning system 2 The second temperature control module 52 sets the temperature of the adjustment air to 35 ° C, and the relative humidit...

test example 2

[0054] The same environmental test equipment is used and the test case 1, the same fixed dry salt fog concentration is 3000mg / m 3 The relative humidity is 40%. When the environment is required to have a temperature of 40 ° C, the relative humidity is 85%, the salt fog concentration is 600 mg / m 3 . According to Equation 1 and Equation 2, the relative humidity of the adjustment air should be controlled to 96%, the amount of the dry salt fog atmosphere flow and the adjustment of the air flow rate are 1: 4.

[0055] When launching an environmental test equipment, the device first produces a fixed concentration of 4000 mg / m by using a dry salt fog occurrence system 1. 3 Dry salt fog atmosphere, in the dry salt fog occurrence system, the temperature is controlled to 40 ° C by the first temperature adjustment module 51, and the relative humidity of the first humidity adjustment module 61 is adjusted; at the same time, the air conditioning system 2 is used. The second temperature co...

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Abstract

The invention discloses environment test equipment for cooperatively controlling salt mist concentration and relative humidity, which comprises a dry salt mist generation system, an air conditioning system, a mixing chamber, a test chamber and an electric control cabinet. The environment test equipment is adopted for obtaining salt mist concentration relational expression and relative humidity relational expression among environment parameters in a test room, dry salt mist environment parameters in a dry salt mist generation system and environment parameters of conditioning air in an air conditioning system base on the salt content and water content conservation principle before and after mixing, and after determining the environment test parameters required in the test room, obtaining a temperature parameter and a relative humidity parameter which need to be set in the dry salt mist generation system and a temperature parameter and a relative humidity parameter which need to be set in the air conditioning system through the salt mist concentration relational expression and the relative humidity relational expression; meanwhile, the equipment can adjust the dry salt mist generation system and the air conditioning system through deviation feedback of monitoring data, and dynamic balance of the laboratory environment is achieved.

Description

Technical field [0001] The present invention relates to an environmental test equipment for salt mist concentration and relative humidity synergistic control. Background technique [0002] The salt clower test is a commonly used metal material corrosion resistance evaluation method. The salt spray box currently carrying the salt spray test is to transfer the solution into a fine mist into the test chamber with compressed air. The resulting salt fog has the characteristics of high concentration, relatively humidity, and has a very fast acceleration for metal materials. . When using a salt spray test for electrical equipment to carry out environmental adaptability research, because existing test equipment and methods have a rapid acceleration, resulting in different parts of electrical equipment quickly causing serious corrosion, causing the failure of equipment, but Unable to reproduce different types of faults that can appear during actual use. [0003] Furthermore, the existin...

Claims

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Application Information

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IPC IPC(8): G05D27/02
CPCG05D27/02
Inventor 刘淼然陈川王俊王受和汪洋刘浩然向利史晓奕
Owner CHINA NAT ELECTRIC APP RES INST
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