What do you know about central heating?

The heat load of central heating can be divided into heating heat load, ventilation heat load, production process heat load, domestic hot water supply heat load and air conditioning refrigeration heat load. Collection of various heat loads Heating and ventilation heat load Heating and ventilation heat load belongs to seasonal load, so its load is related to outdoor temperature and thermal characteristics of building envelope. Heat load in the production process The heat load in the production process is stable throughout the year, but due to the requirements of production technology, some day and night loads change greatly, or the load fluctuates due to continuous production of shift duty. Some production process loads are seasonal. In addition, the process heat load of some products is relatively stable, but it often fluctuates. In order to analyze the heat load from all aspects, if possible, it is necessary to collect the original design product quantity, product heat consumption or standard unit consumption index, production shifts, seasonal characteristics, maintenance cycle, etc. In addition, it is necessary to collect the typical daily and hourly production heat load in each time period. The heat load of domestic hot water supply is a year-round load, which has certain seasonal variation characteristics. The negative load of air conditioning refrigeration is seasonal and changes with the change of outdoor temperature in summer. There are many methods to collect heat load, which should be collected according to the specific objects of each heat load. The heat load in the production process mainly comes from the production workshop, and can also be collected from the competent production department.