Heat pipe type heat energy recovery device

Abstract

The invention discloses a heat pipe type heat energy recovery device which comprises a condensing box. A set of heat pipe assemblies is vertically arranged in the condensing box in a sleeved mode. Each heat pipe assembly comprises a U-shaped outer frame, a separation plate horizontally arranged on the inner wall of the outer frame and a gravity heat pipe vertically penetrating through the separation plate. The space below each separation plate forms a steam chamber, and the space above each separation plate forms a condensing chamber. A lower inlet, a lower outlet and a drain outlet are formed in the side wall of each steam chamber, and an upper inlet and an upper outlet are formed in the side wall of each condensing chamber. The lower inlets are connected with a tail effect evaporation tank, the lower outlets are connected with a cooling system, and the drain outlets are connected with an equipressure drainage assembly. Heat in juice steam is used for heating sugarcane juice at other procedures, vacuum is generated at the same time, sugarcane juice in the tail effect evaporation tank can conveniently boil, a large amount of cooling water is saved, and the problem that the gravity heat pipes are blocked is avoided.

Description

technical field [0001] The invention relates to the field of heat energy recovery, in particular to a heat pipe type heat energy recovery device. Background technique [0002] At present, sugar enterprises generally adopt the relatively energy-saving five-effect pressure-vacuum evaporation thermal scheme to concentrate sugar juice. The final-effect vacuum juice vapor is sucked through a water jet condenser, mixed and condensed directly with water to form a vacuum of -0.075 to 0.078 MPa, which meets the production requirements. According to the process requirements, spray condensed water for cooling and recycling to reduce effluent. However, a large amount of cooling water is required, and the resulting vacuum pressure is unstable. [0003] In order to recycle the heat energy of low-temperature and low-pressure steam, many sugar enterprises and scientific researchers have tried to use shell-and-tube heat exchangers and plate heat exchangers to heat sugarcane juice to recover...

AI Technical Summary

Problems solved by technology

However, due to the low heat transfer rate of the tube-and-tube heat exchanger and the plate heat exchanger, the heat exchange effect is poor, and the expected effect is not achieved, and the f

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