Tube case heat exchange system and heat exchanger

Abstract

A tube case heat exchanger comprises a drum body and a sealing cover positioned at one end of the drum body, wherein a liner is arranged in the drum body; a cooling liquid inlet and a cooling liquid outlet are formed in upper and lower sides of the liner; the liner and the drum are sealed by a liner cover plate; the sealing cover and the cover plate are arranged at the same side; the liner is internally provided with a heat exchange tube bundle structure comprising at least one irregular W-shaped heat exchange tube; each irregular W-shaped heat exchange tube is formed by bending the same straight tube and comprises a first U-shaped tube and a second U-shaped tube which are positioned at different planes and provided with openings in the same direction; respective straight tubes of each first U-shaped tube and the corresponding second U-shaped tube are connected by a bent tube to form a third U-shaped tube with the opening in the opposite direction; the irregular W-shaped heat exchange tubes are uniformly arrayed and arranged along the radial direction of the heat exchanger in a staggering mode; the other straight tubes of the first U-shaped tubes and the second U-shaped tubes penetrate through the cover plate of the liner of the heat exchanger as opening tubes; the opening tubes among different irregular W-shaped heat exchange tubes are serially connected by tube fittings. The tube case heat exchanger is compact in structure, and safe and efficient in use.

Description

technical field [0001] The invention relates to a heat exchange technology applied in the field of new energy, and is especially suitable for the cooling application of high-pressure, high-flow, and high-velocity gas. Background technique [0002] Various types of heat exchangers have been widely used in processing, power, transportation, air conditioning, refrigeration, low temperature, heat recovery, alternative fuels and manufacturing, among which shell and tube heat exchangers are suitable for any capacity and from low temperature to high temperature , from high vacuum to ultra-high pressure and between fluids at any temperature and pressure difference, etc., are widely used in energy saving, energy conversion, energy recovery and new energy and other fields. [0003] Fuel cell vehicles are developed in recent years and are expected to completely solve the two major problems of vehicle exhaust pollution and fossil fuel depletion that have plagued mankind for a long time....

AI Technical Summary

Problems solved by technology

Because the filling pressure of hydrogen is as high as 70MPa, the hydrogen is easy to leak and the high flow rate and high flow rate at the moment of filling, there are no suitable types of heat exchangers available in the market at present, and it is necessary to use fuel cell vehicle hydrogen The actual situation of filling, develop a novel heat exchange system

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