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Balance valve for occasions
1. Balance valve boiler (or chiller) water flow balance
In the boiler room (or chilled water machine room), several units are generally installed in parallel. Because of the different resistance between the units, the flow rate through each unit is inconsistent, so that the unit can not exert the large output of the installed machine. At this point, a balancing valve should be installed at each boiler (or chiller) so that each unit can obtain design flow to ensure safe and normal operation of each unit. When the chiller is connected to multiple cooling towers, each cooling tower should also be equipped with a balancing valve.
2. Balance of the first and second loops of the balance valve thermal station
In a system for supplying hot water to a number of thermal stations in a thermal power station or a centralized boiler room, in order to obtain the required water flow rate for each heat station, it is preferable to install a balancing valve on the primary loop side return pipe of each heat station. In order to ensure that the water flow of each secondary loop is the design flow rate, a balancing valve should also be installed on each secondary loop side of the heat station.
3, district heating pipe network water balance valve flow balance
The district heating and hot water pipe network often supplies heat to several buildings by a boiler house (or heat station). It consists of a main pipe, several trunk pipes, and branch pipes connected to the building entrance on each trunk pipe. Since each building is different from the heat source, if there is no effective equipment to eliminate the residual pressure head of the near loop, the flow distribution will not meet the design requirements, the near end is overheated, and the far end is too cold. Balance valves should be installed at each main pipe and at the entrance of each building to ensure a balanced flow between the main pipes and the buildings in the community.
4, the building heating (cold) pipe network water balance valve flow balance
For more demanding heating (cold) pipe network systems, it is necessary to ensure that all risers (or even branch pipes) reach the design flow rate. At this time, balance valves are installed on the main pipe, the main pipe and the riser pipe (and the branch pipe).