Capillary tube immersion type heat exchanger

Abstract

The invention discloses a capillary tube immersion type heat exchanger. The capillary tube immersion type heat exchanger comprises a shell, two inner end covers, multiple baffle plates and multiple capillary tubes. First through openings are formed in the two ends of the shell, and two second through openings are formed in the peripheral wall of the shell. The two inner end covers are arranged at the two ends in the shell correspondingly. The multiple baffle plates are arranged between the two inner end covers and are sequentially arranged in the length direction of the shell, each baffle plate is provided with multiple through holes, one second through opening is located between one inner end cover and the baffle plate close to the inner end cover, and the other second through opening is located between the other inner end cover and the baffle plate close to the other inner end cover. The multiple capillary tubes are arranged in the shell, and each capillary tube sequentially penetrates through one inner end cover, the multiple baffle plates and the other inner end cover. The capillary tube immersion type heat exchanger is simple in structure and convenient to manufacture and maintain, the heat exchange flow of refrigerants in the capillary tubes is short, the heat exchange effect is good, and the capillary tube heat exchanger is small in size and low in cost.

Description

technical field [0001] The invention relates to the technical field of air-conditioning refrigeration or heating and cooling towers, in particular to a capillary immersion heat exchanger. Background technique [0002] Most of the outdoor unit condensers of traditional small and medium-sized household and commercial air-conditioning systems are tube-fin heat exchangers combined with copper tubes---aluminum expansion tubes. The evaporators use tube-fin heat exchangers, stainless steel plate heat exchangers, casing Type heat exchangers, etc., while large central air conditioners generally use a combination of shell-and-tube heat exchangers and outdoor cooling towers for heat exchange. In the shell-and-tube heat exchanger, the refrigerant exchanges heat with water, and the water becomes cold water or hot water, which is sent to the outdoor cooling tower to raise or cool down to the ambient temperature. Most of the heat exchangers in small and medium-sized household and commerci...

AI Technical Summary

Problems solved by technology

Most of the heat exchangers in small and medium-sized household and commercial air-conditioning systems use tube-fin heat exchangers. When the outdoor ambient temperature is higher than 35°C in cooling mode, the heat exchange effect of this type of heat exchanger is poor, and the cooling effect is poor. When the outdoor ambient temperature is lower than -15°C, there is serious frost or ice, and heat exchange is no longer possible

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