Primary surface type regenerator

A regenerator and main surface technology, which is applied to machines/engines, jet propulsion devices, gas turbine devices, etc., can solve the problems of low efficiency and high energy consumption of micro gas turbines, and achieve energy consumption reduction, obvious energy saving effect, and heat exchange performance. excellent effect

Inactive Publication Date: 2011-05-25
SICHUAN AEROSPACE ZHONGTIAN POWER EQUIP CO LTD
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Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of high energy consumpt

Method used

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Embodiment 1

[0031] Such as Figures 1 to 3 shown

[0032] In the present invention, a plurality of heat exchange units 3 are welded into an annular heat exchange core body. In order to place the most heat exchange units 3 in the smallest space, the heat exchange units 3 are arranged according to the involute line with reference to the outer cylinder 8 of the host machine. The purpose can be achieved by bending and forming and then welding. The band 6 on the outer cylinder is used to limit the outer diameter of the involute, and at the same time, together with the inner cylinder 7, it plays the role of strengthening the structural rigidity. The air inlet 4 and the air outlet 5 need to be welded between every two heat exchange units 3 to prevent air from directly flowing between the two heat exchange units 3 to the gas side. In order to improve the heat exchange performance, as many heat exchange units as possible should be ensured to participate in the assembly welding, which requires th...

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Abstract

The invention discloses a primary surface type regenerator, which comprises a shell (2) and is characterized in that the shell (2) comprises an inner shell and an outer shell, a heat exchange core (1) is arranged between the inner shell and the outer shell and comprises an inner barrel (7) and an outer barrel (8) which are sheathed coaxially, and at least two heat exchange units (3) are arranged between the inner barrel (7) and the outer barrel (8). In the primary surface type regenerator disclosed by the invention, corrugated plates with air ducts being distributed in a cosine line shape are adopted, so that heat exchange area and length are increased, and high-temperature hot air after being combusted is utilized as much as possible to heat air; high-temperature tail gas is utilized to heat air, so that energy consumption is reduced, and heat efficiency of fuel gas is improved; since air involving in combustion has high temperature, the generated quantity of exhaust gases such as oxynitride, CO (carbon monoxide) and the like can be greatly reduced, and thus the goal of energy saving and emission reduction is realized; and the discharge temperature of a host machine can be reduced to 300 DEG C from 600 DEG C, and the heat exchange effect is remarkable.

Description

technical field [0001] The invention relates to a heat exchanger, in particular to a main surface type regenerator. Background technique [0002] The regenerator recovers energy from the exhaust steam of the steam turbine and heats the circulating water entering the boiler. The regenerator can also reheat the steam discharged from the high-pressure stage to recover the energy of the boiler. These devices are auxiliary to the steam system of large boilers. Heat collectors are beneficial to improve the energy efficiency of the boiler system, but the superheater and reheater recover flue gas energy, and the recuperator recovers steam energy. The heat exchanger currently used generally adopts the plate-fin type. Although the technology is mature, there are problems such as large processing volume, low heat exchange efficiency, and large volume. Contents of the invention [0003] The purpose of the present invention is to solve the problems of high energy consumption and low e...

Claims

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Application Information

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IPC IPC(8): F02C7/10
Inventor 李子华张万兴刘丽丽
Owner SICHUAN AEROSPACE ZHONGTIAN POWER EQUIP CO LTD
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