fjärrvärmestationer

Fjärrvärmestationer, also known as district heating substations, are essential components in a district heating system. Their primary function is to transfer heat from the district heating network to individual buildings or properties. The network supplies hot water at a high temperature and pressure, and the substation acts as an interface, safely and efficiently distributing this heat to the building's internal heating and hot water systems.

A typical fjärrvärmestation contains a heat exchanger. This device separates the high-pressure, high-temperature water from the district heating network from the lower-pressure water circulating within the building's own radiators, underfloor heating, and domestic hot water systems. The heat exchanger allows heat to transfer from the network water to the building's water without the two fluids mixing.

Besides the heat exchanger, a fjärrvärmestation usually includes control valves, pumps, meters, and safety devices. Control valves regulate the flow of hot water to the building based on demand and temperature settings. Meters measure the amount of heat consumed, which is then used for billing purposes. Safety devices, such as pressure relief valves, protect the system from over-pressurization. The compact design of modern substations allows them to be installed in small spaces within buildings, making them a practical solution for urban and suburban areas.