1, the boiler (or chiller) 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 2, 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 hot water heating system In order to obtain the required water flow for each thermal station, it is advisable to install a balancing valve on a loop-side return pipe at each thermal station. 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. 3, District heating pipe network water flow balance Community heating 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. 4, building heating (cold) pipe network water flow balance For demanding heating (cold) pipe network system, you need to ensure that all the risers (even branch) to achieve the design flow, then in the main pipe, main pipe And standpipe (and branch pipe) should be installed on the balance valve.
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