Refrigerant heating device and air conditioner

Abstract

The invention provides a refrigerant heating device and an air conditioner which are easy to manufacture. Convective heat-transfer coefficients of the refrigerant heating device and a refrigerant are improved. The refrigerant heating device comprises a shell, an electric heating pipe and a refrigerant inlet pipeline, the shell is provided with a refrigerant inlet, a refrigerant outlet and an electric heating pipe mounting port, the electric heating pipe extends into an inner cavity of the shell through the electric heating pipe mounting port, an electric heating pipe power source terminal is positioned outside the shell, the refrigerant inlet pipeline is connected with the shell at the refrigerant inlet, and a resistance-positive-temperature-coefficient-material heating body is arranged inside a pipe body of the electric heating pipe. The air conditioner comprises the refrigerant heating device, and the refrigerant inlet pipeline and the refrigerant inlet are connected with a refrigerant circulating pipeline respectively. When temperature is higher than a certain value, material resistance of the heating body grows exponentially, heating value lowers dramatically, and the surface temperature of the heating body is maintained to be below a certain value to guarantee the surface temperature of the heating body to be not overhigh, so that reliability is guaranteed.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a refrigerant heating device and an air conditioner. Background technique [0002] The air conditioning and refrigeration system is mainly composed of four basic components: compressor, condenser, evaporator, and throttling device. They are connected in turn by pipes to form a closed system, and the refrigerant circulates continuously in the system, exchanges heat with the outside world and undergoes state changes. [0003] Usually, the compressor compresses the gaseous refrigerant into a high-temperature and high-pressure gaseous refrigerant, and then sends it to the condenser (outdoor unit) to dissipate heat and becomes a liquid refrigerant at room temperature and high pressure, and the outdoor unit blows hot air; then the refrigerant passes through the throttling device, Entering the evaporator (indoor unit), because the space of the refrigerant from the throttling d...

AI Technical Summary

Problems solved by technology

The existing refrigerant heating method is complex and difficult to manufacture and process, and the surface temperature of the heating element cannot be controlled when the state of the refrigerant (such as flow rate, temperature, etc.) is abnormal, which will cause the surface temperature of the heating element to exceed the use range, and even cause the occurrence of the heating medium. Harmful phenomena such as pyrolysis, carbonization and deterioration, reliability cannot be guaranteed

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