A turbo expander with uniform liquid separation function and refrigeration system

Abstract

The invention discloses a turbo expander and a refrigeration system with the function of uniform liquid separation, and provides a turbo expander capable of realizing uniform liquid supply to each flow path of the evaporator and recovering the throttling loss in the refrigeration system. Expander and refrigeration system. The distributor body of the expander has a central liquid supply chamber and an annular distribution chamber on the circumference. The annular distribution chamber is divided into multiple distribution chambers by partitions. Each distribution chamber is connected with a liquid pipe. The high-pressure refrigerant liquid supply pipe connected with the liquid supply chamber is installed inside the liquid supply chamber through the rotating shaft, and a plurality of rotating impellers are installed on the part of the rotating shaft located inside the liquid supply chamber; The opening of the chamber; the lengths of the openings on the multiple distribution chambers are equal; the high-pressure refrigerant liquid supply pipe, the rotating shaft, the multiple rotating impellers, the liquid supply chamber and the annular distribution chamber are coaxial. The expander improves the heat transfer performance of the evaporator and improves the efficiency of the refrigeration system.

Description

technical field [0001] The invention relates to the technical field of refrigeration, and more specifically relates to a turbo expander and a refrigeration system with the function of uniform liquid separation. Background technique [0002] In the refrigeration system, the evaporator with direct expansion liquid supply usually adopts the form of multi-flow parallel connection to achieve the best heat exchange effect, maintain the best refrigerant flow rate, and limit the pressure loss of the pipeline within a certain range . The gas-liquid two-phase flow of the refrigerant coming out of the expansion valve is usually in the form of bubble flow or slug flow. Two-phase flow distribution equipment is required to fully mix the gas-liquid two-phase refrigerant and distribute it equally to each flow. on the road. In the refrigeration system, the refrigerant two-phase flow distribution equipment is usually called a liquid distributor or liquid separator. [0003] The liquid sepa...

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Problems solved by technology

[0008] The purpose of the present invention is to solve the shortcomings of the existing liquid distributor such as uneven liquid separation and no recovery of throttling expansion work, and provide a method that not only realizes uniform liquid supply to each flow path of the evaporator, but also recovers the savings in the refrigeration system. turboexpander

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