Once surface heat regenerator

Abstract

The invention relates to a kind of once surface regenerator which is used in the field of gas turbine heat-moving system technology. The core body is in the inside center of the regenerator, the pressure balancing piece is on both the front and rear end of the core body, the inlet and outlet pipelines are on the top and bottom end of the core body and top and on the top and bottom surface of the outer shell. The core body consists of multi gas rooms and strakes outside the room, the gas room consists of corrugated board slice and inside strake, the corrugated board slice consists of corrugated area which lies in the centre position of the board slice and level area which is around the corrugated area. Seen from the profile, the level area which is composed of plateform locates on the middle level of the corrugated area which is composed of corrugated passage, two corrugated board slices piled in crossing state, the inside strake connects the two board slice together and form a gas room, the multi gas rooms are welded together sequentially through outside strake and form a core body. The invention has greatly improved the heat-exchange efficiency, its structure is compacted, and the heat resistance of the heat-exchange surface is small and the weight of the regenerator is low, it is easy for maintenance and its dependability is high.

Description

technical field [0001] The invention relates to a regenerator used in the technical field of a gas turbine, in particular to a primary surface regenerator applied to a thermal system of a gas turbine. Background technique [0002] The function of the gas turbine regenerator is to transfer the heat of the high-temperature flue gas to the low-temperature air to increase the temperature of the air flowing into the combustion chamber as an oxidant, thereby improving the efficiency of the gas turbine device. In a heat exchanger, if the heat exchange surface is made of a single thickness of material, one side of which flows through the hot fluid and the other side flows through the cold fluid, it is called a primary surface, only if all the heat exchange surfaces are When the primary surface is used, the regenerator is called a primary surface heat exchanger; if the entire heat exchanger has some primary surfaces and some non-primary surfaces, it cannot be called a primary surface...

AI Technical Summary

Problems solved by technology

This patented technology only improves the exterior of the regenerator, such as adding a flow guide grid to reduce the thermal resistance of the gas, but its essence is still a plate-fin heat exchanger, which has not been greatly improved. Heat transfer performance and reduced regenerator volume

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