Application of Dynamic Balance Valve in HVAC Engineering

Performance characteristics of flange full welded ball valve
2020-04-02
With the rapid development of China's national economy, the scale of urban construction is getting larger and larger, and people's requirements for indoor environment are getting higher and higher. Especially for commercial buildings built in prime areas, how to increase the effective commercial area ratio and ensure that the use and operation of air-conditioning systems do not increase energy consumption is a common concern for HVAC professionals and building developers. Keywords: balance valve, indoor environment, water imbalance, load regulation
With the rapid development of China's national economy, the scale of urban construction is getting larger and larger, and people's requirements for indoor environment are getting higher and higher. Especially for commercial buildings built in prime areas, how can the effective commercial area ratio be increased: to ensure that the use and operation of air-conditioning systems does not increase energy consumption? It is a common concern of HVAC professionals and construction developers.
I. Status of hydraulic system in HVAC design
Whether it is air-conditioning or heating engineering, due to the constraints of the conditions and it is impossible to fully use the same trip system. In the actual design of the off-range system, in order to ensure the system's most disadvantageous end of the loop, the end of all other air-conditioning heating equipment is often larger than the design conditions, especially in large-scale buildings. In complex-function projects, systems with long pipelines, large resistance differences at the end equipment, and large start-stop differences at the end of the air conditioner have too much margin for the available heads near the cold and heat sources, and often the flow distribution deviates from the design state , Resulting in system hydraulic imbalance. The deviation of the flow will cause the air conditioner near the cold and heat source to be too cold or the heating is not hot. Not only cannot guarantee the function used, but also cause energy waste.

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