1, the thermal station of the first and second loop water flow balance In the thermal power station or centralized boiler room to a number of heating stations for hot water system, in order to obtain the required thermal power station water flow should be at the thermal station once Install a balance valve on the loopback return pipe. In order to ensure that the secondary loop water flow is the design flow, the balance valve should also be installed on each secondary loop side of the thermal station. 2, the boiler (or chiller) water flow balance In the boiler room (or chiller room), the general installation of several units in parallel, due to the different resistance between the units, causing inconsistencies in the flow through the various units, the unit can not play Installed the maximum output. At this point should be installed in each boiler (or chiller) balance valve, so that each unit can get the design flow, ensure that each unit safe and normal operation. Chiller connected to multiple cooling towers, each cooling tower should also be installed balance valve 3, district heating pipe network water flow balance Community heating water pipe network often by a boiler room (or heat station) to a number of buildings heating . It consists of a main pipe, several main pipelines and branch pipes connected to the entrance of the building on the main pipelines. Because each building is located at a distance from the heat source, the lack of effective equipment to eliminate residual head pressure in the near-loop will result in a non-compliant flow distribution, overheating at the proximal end, and overcooling at the far end. Balance valves shall be installed at the entrance of each main pipe and each building so as to ensure the balance of traffic between main pipelines and buildings in the district.
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