Device for uniformly distributing liquid by using dry evaporator and use method thereof

Abstract

The invention relates to a device for uniformly distributing a liquid by using a dry evaporator and a use method thereof. The problems of complex structure, high sealing requirement and high processing difficulty exist in the conventional liquid distribution device. In a technical scheme of the invention, a gas-liquid refrigerant mixture is distributed more uniformly by using the uniform liquid distribution device in the dry evaporator. The device consists of a uniform liquid distributor, a correlated tube plate and a steam-generating bank. The device has the beneficial effects that: a conical cylindrical uniform liquid distributor is directly arranged in the tube orifice of the steam-generating bank, heat exchange is performed by fully utilizing all steam-generating banks, and energy efficiency is increased by 15-20 percent in comparison to the conventional liquid distribution device. The device is an energy-saving device which has a compact structure and low processing cost and is convenient to manufacture and install.

Description

technical field [0001] The invention relates to a liquid distributing device in an evaporator, in particular to a liquid distributing and evenly distributing device for a dry evaporator and a use method thereof. Background technique [0002] Refrigeration and air conditioning are widely used in daily life. The shell-and-tube dry evaporator is the main part of the refrigeration system. It is composed of a cylinder, tube sheets at both ends, split-range tube boxes, evaporation tube bundles, baffles, supports and corresponding connecting pipes. Among them, the split-range tubes Whether the liquid separation in the box is evenly distributed will directly affect the performance of the dry evaporator and the utilization rate of the evaporating tube bundle. [0003] In the refrigeration process of the dry evaporator, the currently commonly used liquid separation still has the following defects: 1) Because the liquid separation of the gas-liquid refrigerant mixture in the dry evapo...

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Problems solved by technology

[0003] In the refrigeration process of the dry evaporator, the currently commonly used liquid separation still has the following defects: 1) Because the liquid separation of the gas-liquid refrigerant mixture in the dry evaporator in the first process of the split tube box is not uniform, The vaporization process of the gas-liquid refrigerant after heat exchange is insufficient, resulting in a decrease in heat transfer performance; 2) The existing baffles with small holes are installed in the split-range tube box or the form of welding capillary tubes and evaporator tube bundles is adopted , these liquid separators have complex structures, high sealing requirements, and difficult processing, resulting in high processing costs, uneconomical, and energy-saving

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