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     In the air conditioning and heating systems, water circulation system as the energy distribution of the water balance is very important. The hydraulic system is a balance to meet the needs of users, saving energy consumption basis.

     In the air conditioning and heating system, cold (hot) media distribution by a closed pipe system to each user. For a well-designed systems, and the end users control valve (solenoid valve, thermostatic valve, etc.) is 100% open should have access to the design of water, and the end user to change the control valve opening When the desired flow and can be interfering. This water system is a system of water balance, or imbalance is the hydraulic system, hydraulic imbalance, also known as hydraulic imbalance.

     Hydraulic imbalance is generally divided into two kinds of static imbalance and dynamic imbalance. Static disorder, also known as the so-called steady-state offset. The system, each user in the design of state, does not match the actual flow and design flow. The hydraulic imbalance is fundamental, if not addressed, there is always affected. For constant flow systems, such imbalances can be static or dynamic balancing valve to solve the balance valve, except that the instrumentation required to regulate the former, the latter do not. Dynamic disorder, also known as the stability of the so-called imbalance. The system, some users of the water flow when the change (closed or regulation), will cause the system to change the resistance of the distribution, resulting in the flow of other users with the changes. This change in hydraulic imbalance is random and dynamic. Such imbalances, static balancing valve can not be solved only by dynamic balancing valve to solve.

     For example: for the six floors of a building, if not install the dynamic flow balance valve, the water system will be in the actual operation of the dynamic imbalance. In air conditioning cooling season, the first ~ second floor of the room will be too cold, three to four comfortable rooms just to meet the design temperature, five to six rooms are too hot. In contrast, in the heating season, the first ~ second floor of the room will be too hot, three to four comfortable rooms just to meet the design temperature, five to six rooms were too cold. After the installation of dynamic flow balance valve, whether it is a ~ six rooms all or only part of the room with the use of air conditioning, all rooms can meet the design temperature.

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