Reutilizing device for ship low-grade heat source

Abstract

The invention discloses a reutilizing device for a ship low-grade heat source. The reutilizing device comprises a heat exchanger as well as a hot oil pipeline and a thermal insulation pipeline which are connected with the heat exchanger, wherein the heat exchanger comprises a left half body and a right half body which can rotate relative to the left half body; the left half body is in the shape ofa curved plate; the right half body is in the shape of a cylinder; the cylinder is cut in a length direction to form a crescent moon shaped pit; the centre of the curved plate is superposed with thatof the cylinder; the hot oil pipeline is fixedly arranged on the wall surface of one side of the left half body; the thermal insulation pipeline is fixedly arranged on the middle part of the right half body, and can simultaneously rotate along with the right half body; the hot oil pipeline communicates with an external low-grade heat source; the thermal-insulation pipeline communicates with external thermal insulation equipment; and the heat exchanger is divided into a fixed left half body and a right half body which rotate relative to the left half body. Contact between the surface of the left half body and the surface of the right half body is realized through rotation, so that low-grade heat energy flows to the thermal insulation equipment from the low-grade heat source through the heat exchanger. The reutilizing device is compact in structure and is reasonable in design.

Description

technical field [0001] The invention relates to a recycling device for low-grade heat sources of ships. Background technique [0002] Low-grade waste heat refers to low-grade, low-concentration, low-energy waste heat energy that is not valued by people. Although my country has made some achievements in the recovery and utilization of waste heat, the waste heat recycled in my country mainly comes from the sensible heat of high-temperature flue gas. And the combustible gas discharged during the production process, the medium and low temperature waste heat (that is, low-grade waste heat) has basically not been recovered, and low-grade waste heat is very common in marine equipment. These reasons limit its wide use on ships, and marine equipment usually works for a long time with the ship's voyage cycle. The reuse of low-grade waste heat has dual significance for reducing ship fuel consumption and protecting the environment. Contents of the invention [0003] In view of the defi...

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Problems solved by technology

[0002] Low-grade waste heat refers to low-grade, low-concentration, low-energy waste heat energy that is not valued by people. Although my country has made some achievements in the recovery and utilization of waste heat, the waste heat recycled in my country mainly comes from the sensible heat of high-temperature flue gas. And the combustible gas discharged during the production process, the medium and low temperature waste heat (that is, low-grade waste heat) has basically not been recovered, and low-grade waste heat is very common in marine equipment. These reasons limit its wide use on ships, and marine equipment usually works for a long time with the ship's voyage cycle, and the reuse of low-grade waste heat has dual significance for reducing ship fuel consumption and protecting the environment

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