The Application And Research Of Household Metering Heating System In Residential Building

As one of the most means of energy-saving for buildings,it is imperative that putting household heating metering technique into practice, which would greatly improve the thermal comfort of house building and accelerate the promotion process of "household metering, regulating and controlling", and thus promote the modernization process of residual industry. However, due to its short application time in our country, some issues are still to be discussed in application. So, in this paper, some problems brought by household heating metering system are studied and analyzed.In view of the application basis of household heating metering system, its economic, reliability, adjustability, hydraulic balance, construction technology and aesthetics, several system forms are analyzed in this paper, and respective advantages and disadvantages are summarized, which provide reference for users in system form selection.In view of its own characteristics of household heating metering system, household control, adjustability and intermittent and so on, how to calculate its heat load accurately has become a concern in application, so in this paper, from the point of indoor and outdoor parameters selection, orientation correction problem, mechanical ventilation installation and ventilation rate determination, as well as heat transfer problems between heating units, detailed calculation process is elaborated. And as research result shows, the design parameters and related setting in household heating metering system are different from conventional heating systems.In view of one of the application basis of household heating metering system, its adjustability, flow regulating method suitable for end user is analyzed, mainly discussing the dynamic variation law of flow of heating medium G with the change of heat load Q with the condition of different water-supplying temperature tg and heating area F. And on this basis, the thermal conditions of the three common system forms are analyzed in the paper, in which the result shows that compared to the level of single-pipe tandem system and the level of single-pipe leap system, the flow regulating method is more suitable to the level double-pipe parallel connection system.In view of short develop time of household metering system in our country, its technology is not fully-fledged and its design idea is not formed. So taking Xin Jia Yuan in Huaming residential area as an example, relative items involving design and construction is analyzed, form choice, equipments selection, PP-R choice and laying and so on, which provides engineering basis for future design. Besides, the implement effect and existing problemsd in practical application is summed up, which indicates future research direction.