Refrigerant heating device

Abstract

The invention provides a refrigerant heating apparatus and an air conditioner. The refrigerant heating apparatus is easy to manufacture and produce and has reliability guaranteed; the convective heat transfer coefficient between the refrigerant heating apparatus and a refrigerant is increased while the heat transfer effect is good. The technical scheme includes that the refrigerant heating apparatus comprises a casing, an electric heating pipe and a refrigerant inlet pipeline; the casing 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 casing through the electric heating pipe mounting port and a power supply terminal of the electric heating pipe is disposed outside the casing; the refrigerant inlet pipeline is connected with the casing at the position of the refrigerant inlet; the outer surface of the electric heating pipe is of a rib structure capable of strengthening heat transfer. The rib structure is threaded rib or circular rib or bar-like rib structure. The threaded rib is wound on the outer surface of the electric heating pipe spirally, and the distance L between the outer end of the threaded rib and the wall of the inner cavity of the casing is smaller than the one twenty of the diameter D of a refrigerant vessel.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a refrigerant heating device. 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 device to the evaporator...

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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