Low-condensing-pressure deep supercooling efficient dehumidifier

Abstract

The invention provides a low-condensing-pressure deep supercooling efficient dehumidifier. The low-condensing-pressure deep supercooling efficient dehumidifier comprises an air flue, a first draught fan and a refrigerating and dehumidifying system. The refrigerating and dehumidifying system comprises an evaporator, a first condenser, a second condenser, a compressor and a throttling device. According to the low-condensing-pressure deep supercooling efficient dehumidifier, a bypass airflow channel is additionally arranged in the air flue between the first condenser and the second condenser, so that the ventilation quantity of the first condenser is increased, and the condensing pressure of refrigerating fluid gas in the condensers is reduced; the first condenser is used for heat release and cooling of a sensible heat portion of the overheated refrigerating fluid gas and heat release, condensation and liquefaction of the refrigerating fluid gas, and the second condenser is used for cooling and supercooling of refrigerating fluid; since a finned thermal bridge between the first condenser and the second condenser is disconnected, the supercooling degree of the refrigerating fluid at the tail end of the second condenser is improved, the vaporization ratio of the refrigerating fluid in the throttling device can be lowered, the evaporation and heat absorption capacity of the refrigerating fluid in the evaporator is improved, and the energy efficiency ratio of the dehumidifier is increased substantially.

Description

technical field [0001] The invention relates to the technical field of dehumidifier design, in particular to a deep supercooled high-efficiency dehumidifier with low condensation pressure. [0002] Background technique [0003] A dehumidifier is an electrical device that uses refrigeration to reduce the water vapor component in the air and achieve the purpose of reducing the absolute moisture content of the air. Moisture-proof and mildew-proof of crop seeds, electronic products, precision instruments, audio-visual products, paper, clothing, leather goods, medicines, etc., dehumidification in coastal areas and foggy areas, patients suffering from rheumatism and respiratory diseases, as well as the elderly, pregnant women and infants It is especially necessary to create a suitable humidity environment for daily living and nursing care. Therefore, dehumidifiers are widely used in electronic products, precision instruments, food and drug manufacturing workshops, as well as aud...

AI Technical Summary

Problems solved by technology

The condenser and evaporator of the refrigeration and dehumidification system are located in the same air duct, share a fan, and are ventilated in series; in order for the evaporator to effectively cool the inhaled air below the dew point temperature of the air for dehumidification, the ventilation rate of the fan is It can’t be too large; while the air volume that satisfies the cooling and dehumidification of the evaporator is too small for the condenser; the temperature of the air flowing through the condenser rises too much, which drives the condensation temperature of the condenser to rise, that is, the condensation pressure rises , causing the pressure difference between the condensation pressure and the evaporation pressure of the refrigeration and dehumidification system to increase, the power consumption of the compressor increases, the compression ratio increases, and the energy efficiency ratio decreases

[0008] 2. The integral condenser weakens the "supercooling" degree of the refrigerant liquid at the end of the condenser, resulting in a decrease in the evaporation and heat absorption capacity of the evaporator, including the dehumidification capacity

However, a small amount of liquid refrigerant evaporates and vaporizes in the capillary in advance without entering the evaporator, which further reduces the evaporation and heat absorption capacity of the evaporator, including the dehumidification capacity.

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