{"id":5210,"date":"2024-11-16T15:00:59","date_gmt":"2024-11-16T07:00:59","guid":{"rendered":"https:\/\/www.air-tester.com\/?p=5210"},"modified":"2025-08-01T17:11:56","modified_gmt":"2025-08-01T09:11:56","slug":"mao-xi-guan-du-se-ce-shi","status":"publish","type":"post","link":"https:\/\/www.air-tester.com\/en\/mao-xi-guan-du-se-ce-shi.html\/","title":{"rendered":"30 seconds to complete the capillary tube clogging test, air conditioning capillary gas flow tester behind the quality of innovation"},"content":{"rendered":"
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Imagine that:On a hot summer day, you turn on the air conditioner, but found that the room is not cool. Only after inspection do you realize that there is a problem with a small capillary tube.<\/strong><\/p>\n<\/blockquote>\n\n\n\n

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Capillary tubes are indispensable for air conditioning and refrigeration systems<\/em><\/figcaption><\/figure>\n\n\n\n

Why would a capillary tube, a part only slightly thicker than a hair, cause the entire air-conditioning cooling system to \"strike\"? Today, let us unravel the mystery of capillary tube.<\/p>\n\n\n\n

I. The critical role of capillaries<\/h2>\n\n\n\n

In the air conditioning system, the capillary tube is like a sophisticated \"regulator\", which silently accomplishes four important tasks:<\/p>\n\n\n\n

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Copper capillary tubes commonly found in refrigeration equipment<\/em><\/figcaption><\/figure>\n\n\n\n
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  1. \"Downsizing\" of high-pressure refrigerants<\/strong>-Like speed bumps on a highway, ensuring that the refrigerant flows at the right speed<\/li>\n\n\n\n
  2. Precise regulation of refrigerant flow<\/strong>-Like a faucet valve that controls the \"water flow\" of the refrigerant.<\/li>\n\n\n\n
  3. Maintaining system pressure balance<\/strong>-Like a \"balance beam\" for the system, maintaining the perfect ratio of high and low pressures.<\/li>\n\n\n\n
  4. Ensure that the refrigerant is fully utilized in the evaporator<\/strong>-Make the best use of every drop of refrigerant<\/li>\n<\/ol>\n\n\n\n

    II. Small pipes, big hazards<\/h2>\n\n\n\n

    Why are blocked capillaries such a headache?<\/h3>\n\n\n\n
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    • The cooling effect plummets, making the air conditioner useless<\/li>\n\n\n\n
    • Worse, it can lead to \"overwork damage\" to the compressor.<\/li>\n\n\n\n
    • Once problems are discovered after installation, the cost of repairs is prohibitive<\/li>\n\n\n\n
    • Manufacturers' reputations tarnished, consumer complaints continue<\/li>\n<\/ul>\n\n\n\n

      III. Practical case sharing<\/h2>\n\n\n\n

      A well-known air conditioning brand's road to quality improvement<\/h3>\n\n\n\n

      In the air conditioning manufacturing industry, capillary tube testing has always been a technical challenge.2024 In the summer of 2024, an air conditioning brand encountered a thorny problem:Received more than 10 user complaints of capillary blockage in just one month<\/strong>. Upon investigation, it was found that one of theThe failure of the 80% stems from tiny impurities inside the capillary tube during the production process<\/strong>This is precisely the blind spot that is difficult to detect with conventional blow testing.<\/strong><\/strong><\/p>\n\n\n\n

      Problem Analysis:<\/h4>\n\n\n\n
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      • Conventional blow tests do not sense 'half blockages' and have a very low recognition rate of tiny blockages.<\/li>\n\n\n\n
      • Unable to accurately measure the actual flow value, the test standard is not uniform, the test results are susceptible to the influence of subjective factors<\/li>\n\n\n\n
      • Inefficient manual testing, limited average daily production capacity, inability to realize quality traceability, difficult to trace back problem products<\/li>\n<\/ul>\n\n\n\n