Water is usually used as a heat carrier in heating systems of individual houses. Sometimes the heating system is filled with non-freezing liquids (glycol solutions in water), which helps reduce damage in emergency situations. - Water is usually used as a heat carrier in heating systems of individual houses. Sometimes the heating system is filled with non-freezing liquids (glycol solutions in water), which helps reduce damage in emergency situations.
- The maximum water temperature is determined depending on the material of the pipelines and the type of heating devices. For example,
- for a radiator heating system and polymer pipes - 90°C,
- for a heated floor system - 40°C,
- to ensure the standard floor surface temperature is not higher than 26°C.
- During the heating season, the temperature of the heat carrier should change following the change in outside air temperature.
CLASSIFICATION - According to the method of circulation of the hear carrier, water heating systems are divided into gravitational (natural circulation), in which water moves due to the difference in the weights of hot and chilled (return) water, and pumping (mechanical circulation).
Structurally, heating systems are divided into two fundamentally different types: Structurally, heating systems are divided into two fundamentally different types:
1 – single-pipe riser,
1a – return riser of a two-pipe system,
1b – supply riser of a two-pipe system,
2 – closing section (bypass),
3 – heating device, 4 – radiator thermostat.
In a one-pipe system, heating devices in each branch (riser) are connected to the same pipeline in series.
In a two-pipe system, heating devices are connected in parallel to two risers - supply and return - and have virtually no effect on each other. In this regard, the two-pipe system is best suited for automatic control.
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