What are the specific steps for balancing the flow rate of buried pipes in ground source heat pumps

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1. Common faults and daily maintenance of balance flow meters [Hesheng Measurement and Control]

Common faults of balance flow meters include leakage of pressure pipelines and uneven heat tracing of positive and negative pressure pipelines; Daily maintenance requires regular discharge of pollutants, condensate and exhaust gases, inspection and infusion of isolation fluid, and strengthened inspections during cold seasons. Common faults and countermeasures of balanced flow meters: Leakage faults in pressure pipelines: When there is a leakage point in the pressure pipeline, it will have different effects on the measurement indication. If there is a positive leakage, the indication will be low; When there is a negative leakage, the indication will be higher; The balance valve is slightly leaking, and the indication will be low. Cause analysis: Components on the pipeline, such as valves, joints, drain valves, exhaust valves, etc., may have poor sealing due to improper installation, aging, external impact, etc., leading to leakage. Solution: Carefully search for all components on the pipeline, conduct a detailed inspection of every possible leak location, and promptly repair or replace relevant components once a leak is found. Performance of uneven heat tracing in positive and negative pressure pipes: When the heat tracing of positive and negative pressure pipes with heat tracing measures is uneven, but has not yet reached the degree of vaporization or freezing, it will cause uneven density of condensate in the two pressure pipes, resulting in measurement errors. Cause analysis: There are problems with the design or installation of the heat tracing system, resulting in uneven heating of the positive and negative pres

sure pipes; Or there may be malfunctions in the operation of the heat tracing system, such as unstable heat tracing steam pressure, mismatched heat tracing cable power, etc. Solution: Re perform proper heat tracing and insulation to ensure even heating of the positive and negative pressure pipes; Alternatively, measures can be taken to ensure that the ambient temperature and condensate temperature inside the positive and negative pressure pipes are the same, such as adjusting the number of heat tracing systems and increasing the thickness of insulation layers. Daily maintenance measures for balanced flow meters include regular drainage, condensation, and exhaust maintenance. During daily maintenance, regular drainage, condensation, and exhaust work should be carried out. For situations where non measuring media may accumulate in the transmitter measurement room, regular inspections and discharge should also be carried out. Strictly follow the relevant operating regulations of the instrument system with isolation liquid when discharging the measuring scale or working properly. For dirty fluids, the Lingbo blowback method should be used regularly to remove sediment and dirt from the pressure pipeline and transmitter according to the actual operating conditions on site. Reason analysis: The fluid may contain impurities, moisture, etc., which can accumulate in the pressure pipeline and transmitter measurement chamber and affect the accuracy of the measurement; The deposition of dirty fluids can clog pipelines and transmitters, leading to measurement failures. Maintenance cycle: The cycle of discharge, coagulation, and exhaust can be determined based on the degree of fluid fouling and operating conditions. It is generally rec

1. Common faults and daily maintenance of balance flow meters [Hesheng Measurement and Control]

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