Flexible fluid-directing double-spiral-sleeve type heat exchanger

Abstract

The invention relates to a flexible fluid-directing double-spiral-sleeve type heat exchanger which comprises a compressor, a condenser, an evaporator and a collecting barrel; the structures of the condenser and the evaporator comprise tube sleeves and thin heat exchanging pipes; the outer wall of each thin heat exchanging pipe is provided with flexible fluid directors at intervals,and the condensers and the evaporators are respectively communicated with the compressor by the heat exchanger; the heat exchanger comprises an outer sleeve barrel, an upper exhaust port, a lower exhaust port, an evaporator connecting port, a compressor connecting port, and an inner heat exchanging pipe; the invention causes that the cooling water and a refrigerant to run in a reverse spiral mode so as to improve the coefficient of heat exchanging; the existence of flexible fluid director further intensifies the heat exchanging efficiency of the heat exchanger; the energy efficiency ratio (EER) of the invention is more than or equal to 5.66, coefficient of performance (COP) is more than or equal to 4.8, coefficient of heat transfer (K) is more than or equal to 2000W / M <2> DEG C, capacity of heat extraction ranges from 1KW to 400KW, refrigerating output is increased by about 30 percent compared with the prior art, while the materials used for the heat exchanging pipe is reduced about 20 percent, and effects of saving energy and reducing consumption are obvious. Therefore, the invention achieves the requirements and aims of saving energy, increasing efficiency and reducing power consumption.

Description

technical field [0001] The invention relates to a sleeve-type heat exchanger, in particular to a sleeve-type heat exchanger that can be used in small, medium and large-scale water source heat pumps and water-cooled chillers, specifically a flexible flow-guiding double-helix sleeve-type heat exchanger device. Background technique [0002] The structure of the existing casing heat exchanger includes a compressor, a spiral casing condenser whose inlet is connected with the compressor, and a spiral casing evaporator connected with the compressor and having a gas collecting bucket at the end. , the collecting barrel connected with the end of the spiral casing condenser; the collecting barrel is connected with the spiral casing evaporator through the liquid separator; the structures of the spiral casing condenser and the spiral casing evaporator are both It includes a pipe sleeve and several thin heat exchange tubes that are sheathed in the pipe sleeve. The so-called sleeve type...

AI Technical Summary

Problems solved by technology

The casing heat exchanger of this structure can only be applied to small units, and the energy efficiency ratio (EER) ≤ 4.6, the coefficient of performance (COP) ≤ 4.05, and the heat transfer coefficient (K) under the optimal working condition within the framework of the national standard ≤1100W / M 2 . 0 C, the heat removal capacity is 1-180KW

Moreover, the heat exchange tube has many consumables

Therefore, no matter in terms of working effect or energy saving and consumption reduction, the casing heat exchanger with this structure cannot meet people's growing requirements for energy saving, efficiency increase and consumption reduction.

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