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.
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.
I. The critical role of capillaries
In the air conditioning system, the capillary tube is like a sophisticated "regulator", which silently accomplishes four important tasks:
- "Downsizing" of high-pressure refrigerants-Like speed bumps on a highway, ensuring that the refrigerant flows at the right speed
- Precise regulation of refrigerant flow-Like a faucet valve that controls the "water flow" of the refrigerant.
- Maintaining system pressure balance-Like a "balance beam" for the system, maintaining the perfect ratio of high and low pressures.
- Ensure that the refrigerant is fully utilized in the evaporator-Make the best use of every drop of refrigerant
II. Small pipes, big hazards
Why are blocked capillaries such a headache?
- The cooling effect plummets, making the air conditioner useless
- Worse, it can lead to "overwork damage" to the compressor.
- Once problems are discovered after installation, the cost of repairs is prohibitive
- Manufacturers' reputations tarnished, consumer complaints continue
III. Practical case sharing
A well-known air conditioning brand's road to quality improvement
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. Upon investigation, it was found that one of theThe failure of the 80% stems from tiny impurities inside the capillary tube during the production processThis is precisely the blind spot that is difficult to detect with conventional blow testing.
Problem Analysis:
- Conventional blow tests do not sense 'half blockages' and have a very low recognition rate of tiny blockages.
- 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
- Inefficient manual testing, limited average daily production capacity, inability to realize quality traceability, difficult to trace back problem products
Precision Industrial gas flow tester in the air conditioning capillary tube clogging test applications
Solution:
In the face of these troubles, the enterprise introduced the Jingcheng Engineering gas flow detector (also called flow type gas tightness tester), once the application of immediate results:
- Inspection efficiency increase 300%, dramatically improving production tempo
- The detection rate of defective products has been increased to 99.9%, almost eliminating the leakage of inspection.
- Sharp drop in customer complaints 85%, significant improvement in brand reputation
- Annual maintenance cost savings of more than 2 million dollars, a significant return on investment
IV. Intelligent solutions that prevent problems before they occur
Intelligent testing process of Precision Engineering gas flow tester (test in 30 seconds)
1. Preparation (approximately 10 seconds to complete)
- Accurate installation of the capillary tube into the special fixture
- Confirm that the device status display is normal
- Access to preset client parameter programs
2. Intelligent detection (only 20 seconds)
- One-button start, fully automatic completion of the test
- Accurate measurement of gas flow values
- Real-time display of flow curves
- Intelligent determination of pass status:
- Passed products show "PASS" green signal
- Non-conforming products display "NG" red signal and alarm immediately.
V. Core strengths
- Detection accuracy up to 0.01ml/min
- Test time <30 seconds/piece
- False alarm rate less than 0.01%
- Supports fast switching between capillary tubes of different pore sizes.
- Traceable data to help smart manufacturing
VI. Summary
The quality inspection of the capillary tube, which seems to be a small link, is related to the cooling effect and service life of each air-conditioning and refrigeration equipment.Precision Industrial Technology's gas flow testing equipment, the use of scientific and technological means for air-conditioning product quality protection, to "wisdom" to win, so that every consumer can enjoy the quality of the cooling experience. Solving problems at the root is the winning way to improve product quality.
To learn more detailed industry testing programs and application cases, please pay attention to [Jingcheng Engineering Airtightness
