Efficient heat pump system

Abstract

The invention discloses an efficient heat pump system, which comprises a compressor, a four-way valve, a first condenser, a second condenser, a throttling device and an evaporator, wherein the first condenser is connected in series between the compressor and the four-way valve. The heat pump system can be switched between a low-temperature heating mode and a high-temperature heating mode. The efficient heat pump system has the advantages that the heating efficiency is high, the water temperature fluctuation range is small, the compressor and the four-way valve are effectively protected, and the like.

Description

technical field [0001] The invention relates to a heat pump system. Background technique [0002] The heat pump system in the prior art mainly has the following defects: [0003] 1. When the water temperature of the water storage tank is higher than 43°C, the refrigerant system that performs heat absorption and heat release cycles is difficult to release heat due to the high external ambient temperature, which leads to high pressure in the refrigerant cycle system and makes the refrigerant It is difficult to effectively carry out the heat absorption and heat release cycle, thereby reducing the heating capacity of the refrigerant system; [0004] 2. When the water storage tank is supplemented with tap water, due to the large temperature difference between the tap water and the water storage tank, it is easy to cause uneven water temperature and large temperature fluctuations in the water storage tank; [0005] 3. When the sensor of the water storage tank has a temperature d...

AI Technical Summary

Problems solved by technology

[0003] 1. When the water temperature of the water storage tank is higher than 43°C, the refrigerant system that performs heat absorption and heat release cycles is difficult to release heat due to the high external ambient temperature, which leads to high pressure in the refrigerant cycle system and makes the refrigerant It is difficult to effectively carry out the heat absorption and heat release cycle, thereby reducing the heating capacity of the refrigerant system;

[0004] 2. When the water storage tank is supplemented with tap water, due to the large temperature difference between the tap water and the water storage tank, it is easy to cause uneven water temperature and large temperature fluctuations in the water storage tank;

[0005] 3. When the sensor of the water storage tank has a temperature deviation, the exhaust temperature is often higher than the normal value, and the exhaust temperature of the compressor is too high for a long time, which will cause damage to the compressor and the four-way valve

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