A buffer tank is designed to help decrease the cycling of a heat source, or to store thermal energy generated for use later when required. Buffer tanks hold or store a volume of heated water, which is generally “heating water” that runs through heating system (hydronic systems),such as underfloor heating or radiators. In essence they are thermal storage tanks, as they store the thermal heat generated in the water, this thermal heat or energy is used at a later point.
A buffer tank is typically thought of as a device that stores thermal mass so that a heating or cooling supply doesn’t cycle too much as lower load requirements cycle on and off for the heat pump system. By reducing heat pump cycling frequency, you also can reduce running costs.

Main functions:

1. Storage function 2. Buffering effect 3. Active exhaust function 4. Protection for circulating pump and pipeline

5. Cleaning function 6.Efficient defrosting 7. Stability



Features:

1.Better reliability 2. Longer service life 3. More environmental protection and safety

What does exactly the buffer tank of air source heat pump do?

In the absence of a buffer tank, the air source heat pump unit would start and stop frequently. Due to the limited amount of water in the circulating pipeline, the circulating water can easily reach the set temperature in a short time, and the unit stops working randomly. Then the circulating water will cool down rapidly, so the water temperature will reach the start-up condition of the heat pump in a short time, leading to the machine start-up again. Such frequent start-up will greatly increase the load of the unit, and reduce its service life; because the power consumption of the heat pump reaches a peak at start-up, it will also cause a waste of electricity. With the buffer tank, the temperature of circulating water changes more smoothly and slowly, and the number of start-up and shutdown naturally decreases a lot, effectively prolonging the service life of heat pump.

Buffer tank allows the heat pump system to clean itself more thoroughly and prevent the system from getting clogged.

Efficient defrosting - with a buffer tank, the defrosting time is reduced. When the air source heat pump works in cold weather, the heat pump will frost.

A buffer tank can ensure the smooth flow of water in the heat pump system so that it can complete automatic exhaust, and avoid error alarm.

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