The difference between the working principle of air source heat pump double application supply and triple application supply
The air source heat pump double application supply system uses a set of air source heat pump system to provide hot water, heating or two functions of heating and cooling, so the The air source heat pump double application supply system is the general name of the integrated floor heating and air conditioning machine or the integrated floor heating and hot water machine. Air source triple application supply is air conditioner + floor heating + hot water all-in-one machine.
According to its operation process, let’s take a look at the difference between the working principle of air source heat pump double application supply and triple application supply. “Cooling” is not just a simple cooling process. Compared with natural cooling, the “cooling” process is actually a process of consuming a certain amount of external energy (such as electric energy, thermal energy, solar energy, etc.) The process of transferring to a “high temperature heat source”. Therefore, when the temperature of the refrigerant is lowered by “refrigeration”, and the heat converted by the external work is added, it will inevitably generate more heat than the cooling capacity. In most of the current air conditioner designs, this part of the heat is not only not used, but also consumes the power of the water pump and the fan, and the heat is taken away by the cooling medium (water, air, etc.) through the condenser. If we can use this part of the heat, we can achieve one-way energy consumption and two-way output, greatly improve the energy utilization rate of the refrigeration unit, and save the energy consumption of the cooling system.
Air source triple application heat pump system (also known as: hot water type air conditioner), the system schematic diagram and related working principles are as follows:
①Hot water heat exchanger;
②Indoor heat exchanger (indoor unit);
③Outdoor heat exchanger (outdoor unit);
④Four-way solenoid valve;
⑨ storage tank.
During summer cooling, the entire triple supply system follows:
⑤→①→④→③→⑨→⑧→⑦→②→⑥→⑤, the refrigerant evaporates from liquid to low-temperature and low-pressure gas due to the continuous absorption of heat in the indoor air, and the gas is compressed by compression. It becomes high temperature and high pressure, and the released heat is absorbed and heated by cold water after passing through the heat exchanger. Since the specific volume of water is much larger than that of air, the use of this can improve the efficiency of the condensing system and achieve the purpose of heating cold water.
In other seasons, since indoor cooling is not required, the entire system uses
⑤→①→④→②→⑨→⑧→⑦→③→⑥→⑤, the heat exchanger is changed from indoor to outdoor, so that the system transfers the heat from the outdoor air to the indoor and hot water system, thus achieve the goal of heating (or heating).