【Daily Discussion】Utilities - HVAC - 20200818

Quality regulation: Keep the flow rate constant and change the supply and return water temperatures. Quality regulation by staged flow variation: Different flow rates are used at different times, along with adjustments to the supply and return water temperatures of the system. Mass flow rate regulation: Changing both the temperature and flow rate of the heat medium supplied. Intermittent adjustment: At the start and end of the heating period, change the number of heating hours. Heat regulation: Heat metering devices are used.

Quality regulation: Keep the flow rate constant and change the supply and return water temperatures. Quality regulation by staged flow variation: Different flow rates are used at different times, along with adjustments to the supply and return water temperatures of the system. Mass flow rate regulation: Changing both the temperature and flow rate of the heat medium supplied. Intermittent adjustment: At the start and end of the heating period, change the number of heating hours. Heat regulation: Heat metering devices are used

Quality regulation: Keep the flow rate constant and change the supply and return water temperatures. Quality regulation by staged flow variation: Different flow rates are used at different times, along with adjustments to the supply and return water temperatures of the system. Mass flow rate regulation: Changing both the temperature and flow rate of the heat medium supplied. Intermittent adjustment: At the start and end of the heating period, change the number of heating hours. Heat regulation: Heat metering devices are used

Quality regulation: Keep the flow rate constant and change the supply and return water temperatures. ??Quality regulation by staged flow variation: Different flow rates are used at different times, along with adjustments to the supply and return water temperatures of the system. ?? Mass flow rate regulation: Changing both the temperature and flow rate of the heat medium supplied. Intermittent adjustment: At the start and end of the heating period, change the number of heating hours. Heat regulation: Heat metering devices are used

Quality regulation: Keep the flow rate constant and change the supply and return water temperatures. Quality regulation by staged flow variation: Different flow rates are used at different times, along with adjustments to the supply and return water temperatures of the system. Mass flow rate regulation: Changing both the temperature and flow rate of the heat medium supplied. Intermittent adjustment: At the start and end of the heating period, change the number of heating hours. Heat regulation: Heat metering devices are used

Quality regulation: Keep the flow rate constant and change the supply and return water temperatures. ??Quality regulation by staged flow variation: Different flow rates are used at different times, along with adjustments to the supply and return water temperatures of the system. ?? Mass flow rate regulation: Changing both the temperature and flow rate of the heat medium supplied. Intermittent adjustment: At the start and end of the heating period, change the number of heating hours. Heat regulation: Heat metering devices are used

(1) Quality regulation. The flow rate of the heating system remains unchanged; only the supply and return water temperatures of the system are altered. (2) Quality regulation by gradually changing the flow rate. At different times during the heating period, different flow rates are used and the supply and return water temperatures of the system are adjusted. (3) Intermittent adjustment. At the beginning and end of the heating period (when the outdoor temperature is high), the system uses a certain flow rate and supply/return water temperatures, and adjusts the number of hours of heating per day as needed. (4) Mass-flow regulation. The circulation water volume of the system is adjusted according to the changes in the heat load of the heating system, while simultaneously changing the supply and return water temperatures, such as through variable frequency control technology. (5) Heat regulation. By using a heat metering device, the heat supply from the heat source is directly adjusted in accordance with changes in the system’s heat load; this is known as the heat metering control method.

Quality regulation: Keep the flow rate constant and change the supply and return water temperatures. Quality regulation by staged flow variation: Different flow rates are used at different times, along with adjustments to the supply and return water temperatures of the system. Mass flow rate regulation: Changing both the temperature and flow rate of the heat medium supplied. Intermittent adjustment: At the start and end of the heating period, change the number of heating hours. Heat regulation: Heat metering devices are used.

Quality regulation: Keep the flow rate constant and change the supply and return water temperatures. Quality regulation by staged flow variation: Different flow rates are used at different times, along with adjustments to the supply and return water temperatures of the system. Mass flow rate regulation: Changing both the temperature and flow rate of the heat medium supplied. Intermittent adjustment: At the start and end of the heating period, change the number of heating hours. Heat regulation: Heat metering devices are used.

Quality regulation: Keep the flow rate constant and change the supply and return water temperatures. Quality regulation by staged flow variation: Different flow rates are used at different times, along with adjustments to the supply and return water temperatures of the system. Mass flow rate regulation: Changing both the temperature and flow rate of the heat medium supplied. Intermittent adjustment: At the start and end of the heating period, change the number of heating hours. Heat regulation: Heat metering devices are used