【 Weak current College 】 sewage pump performance analysis

Because of the urban waste water temperature than the outside air temperature, water temperature, ground floor/table, soil temperature, water temperature, more beneficial to reduce heat-pump cooling and heating loop temperature, allowing water source heat pump system for heating and cooling performance is higher than the other heat pump system. According to the survey, sewage heat pump air conditioning heating performance ratio of air-source heat pumps and water-source heat pump 60% compared to the ratio of air-source heat pump to save electricity 20%;
Beijing region sewage heat pump air conditioning system of total running cost is ground water-source heat pump system of 70%, is a gas with air cooling and air conditioning system of 45%, while the initial investment is ground water-source heat pump system with 80%; Beijing a large city square with water-source heat pump heating systems, the annual operating cost is air source heat pump 62.5%, is electric boiler 23.6%, is a wall-mounted gas boiler heating Gasifier 57.6%, is bromide machine 57.8%. Visible, water source heat pumps other than existing air conditioning system and heat source has a large energy-saving effect and lower running costs. Water source heat pump technology for energy-saving effect in the second place in terms of cooling water savings. In the summer air conditioning run due to waste water source heat pump system does not require conventional air-conditioning cooling tower, and the use of urban wastewater directly or indirectly take heat pump in the realization of building air-conditioning cooling produced by large amounts of condensation heat, saving significant amounts of cooling water resources, water resources with significant savings. In addition, water source heat pump technology for energy-saving effect is also reflected in the year to provide domestic hot water. Water source heat pump system in the building for winter heating and summer air conditioning in the meantime, you can replace the existing water heater, oil/gas fired boiler and boiler throughout the building to provide domestic hot water, also from an energy efficiency and running costs, water source heat pump system with larger energy saving effect.
Water source heat pump system for emission reduction effect mainly reflected in the following two aspects. Our thermal power, coal in China's overall energy consumption structure accounted for 67%. Therefore, water source heat pump system in energy saving, first reduces the CO2, SO2, NOx, dust and other pollutant emissions. More air-source heat pump can be reduced by 68% of CO2 emissions and 75% of NOx emissions; more air-source heat pump reduction of 40% of CO2 emissions and 37% of NOx emissions; visible, water source heat pump technology have significantly reduce air pollution and reduce greenhouse gas emissions, environmental benefits.
Second, water source heat pump air conditioning in summer with large buildings waste heat emission reduction effects. In summer, a large number of building internal heat through different forms of discharge to the outdoor environment, increased urban heat island effect. Research has shown that the city internal ambient temperature than urban ambient temperature high 1-5oC, even more than 10oC, urban heat island effect increased urban high frequency and high temperature hazards, not only to deterioration of the urban environment, and in turn increase the air-conditioning load and air-conditioning power consumption, resulting in people's lives, urban architecture and the vicious cycle of urban environment. Water source heat pump system in summer can be a lot of building internal heat directly discharged into the municipal wastewater, rather than through a cooling tower or air-conditioning outdoor unit into building outdoor environments, have significantly reduce the urban heat island effect of heat emission reduction effects.
Because of the urban waste water temperature than the outside air temperature, water temperature, ground floor/table, soil temperature, water temperature, more beneficial to reduce heat-pump cooling and heating loop temperature, allowing water source heat pump system for heating and cooling performance is higher than the other heat pump system.