CN-113153534-B - Surface type heat regenerator

CN113153534BCN 113153534 BCN113153534 BCN 113153534BCN-113153534-B

Abstract

The invention belongs to the technical field of auxiliary equipment of gas turbines, and particularly relates to a surface type heat regenerator. The corrugated plate comprises a first corrugated plate and a second corrugated plate, wherein the first corrugated plate and the second corrugated plate are long-strip-shaped corrugated plates, two ends of the first corrugated plate are respectively fixed at two ends of the second corrugated plate to form a closed ring, the first corrugated plate and the second corrugated plate are arranged in parallel and curled to form a rolled structure, corrugated flow passages communicated with two end faces of the rolled structure are formed in the upper surface and the lower surface of the first corrugated plate and the lower surface of the second corrugated plate, a first medium flow passage is formed in the closed ring, and the shape of the closed ring is a second medium flow passage. The surface type heat regenerator provided by the invention is formed by integrally winding the corrugated plates, has a simple structure, enables a heat exchange medium to be converted into turbulent flow from advection, improves the heat exchange efficiency, and increases the heat exchange area under the condition of the same length and spiral turns.

Inventors

JIANG YU
DONG YUXIN
LIU HAIGANG
XU GUANGDI
JIN LITENG

Assignees

新奥能源动力科技（上海）有限公司
上海新奥节能技术有限公司

Dates

Publication Date: 20260421
Application Date: 20210406
Priority Date: 20210406

Claims (8)

1. The surface type heat regenerator is characterized by comprising corrugated plates, a partition belt and side strips, wherein each corrugated plate comprises a first corrugated plate and a second corrugated plate; The first corrugated plate and the second corrugated plate are long-strip-shaped corrugated plates, one end of the first corrugated plate is fixedly connected with one end of the second corrugated plate, the other end of the first corrugated plate is fixedly connected with the other end of the second corrugated plate, and the first corrugated plate and the second corrugated plate form a closed ring; The upper surface and the lower surface of the first corrugated plate and the lower surface of the second corrugated plate are respectively provided with a corrugated runner communicated with two end surfaces of the coiled structure; the separation belts are arranged on two end faces of the rolled structure and are used for separating the rolled structure into a first medium circulation area and a second medium circulation area which are mutually separated; The side strips are arranged between the first corrugated plates and the second corrugated plates and are used for sealing the second medium flow channels in the first medium flow area by matching with the end faces of the coiled structures and also used for sealing the first medium flow channels in the second medium flow area by matching with the end faces of the coiled structures; the corrugated plate is manufactured by a stamping process, the corrugated flow channel is a continuous S-shaped flow channel, and in order to facilitate sealing of the strake, the side edge part of the corrugated plate is stamped into a flat plate shape.
2. The surface heat regenerator according to claim 1, the surface type heat regenerator is characterized by further comprising: The special-shaped seal head is fixed on one end face of the coiled structure and is used for forming the only inlets of all the first medium circulation areas.
3. The surface heat regenerator according to claim 1, the surface type heat regenerator is characterized by further comprising: and the sleeve is arranged in the axle center area of the coiled structure and is used for forming the winding axle core of the first corrugated plate and the second corrugated plate.
4. The surface regenerator of claim 1, wherein the corrugated flow channels are all distributed in a direction parallel to a central axis of the rolled structure.
5. The surface regenerator of claim 1, wherein the corrugated flow passage is rectangular in cross section.
6. The surface heat regenerator according to claim 5, wherein the upper surface of the corrugated plate is composed of corrugated flow passages and corrugated protrusions which are arranged at intervals and have the same shape, the corrugated protrusions of the upper surface of the corrugated plate are outer surface plates of the corrugated flow passages of the lower surface of the corrugated plate, the lower surface of the corrugated plate is composed of the corrugated flow passages and the corrugated protrusions which are arranged at intervals and have the same shape, and the corrugated protrusions of the lower surface of the corrugated plate are outer surface plates of the corrugated flow passages of the upper surface of the corrugated plate.
7. The surface regenerator of claim 1, wherein the edge strips are welded to the rolled structure.
8. The surface heat regenerator according to claim 1, wherein a winding start-stop end of the corrugated plate in the roll-shaped structure is a transition section, and a peripheral plate and a reinforced steel belt are sleeved on the outer surface of a cylinder of the roll-shaped structure.

Description

Surface type heat regenerator Technical Field The invention belongs to the technical field of auxiliary equipment of gas turbines, and particularly relates to a surface type heat regenerator. Background The gas turbine is divided into a heavy gas turbine, a light gas turbine and a micro gas turbine, along with the continuous development of distributed energy sources, the micro gas turbine is widely used in some fields, and unlike the heavy gas turbine, the micro gas turbine adopts simple circulation and consists of a gas compressor, a combustion chamber and a turbine, no combined cycle waste heat furnace is used for recycling the heat of flue gas, the temperature of the flue gas discharged from the micro gas turbine is up to 500-700 ℃, if direct discharge can cause great energy waste, a regenerator is usually arranged at the outlet of the gas turbine, and the regenerator is a gas-gas heat exchanger used for exchanging heat between air compressed by the gas compressor and gas discharged by the turbine, so that the temperature of the air entering the combustion chamber is increased, the combustion temperature is increased, the temperature of the flue gas can be reduced, the heat efficiency of the gas turbine is improved, and the fuel consumption is reduced. The prior heat regenerator has the technical defects of low heat transfer efficiency, large volume and heavy weight, such as tube fin type, plate fin type, primary surface type and the like. Disclosure of Invention In view of the above, the invention provides a surface type heat regenerator which is formed by integrally winding corrugated plates, has a simple structure, converts a heat exchange medium from advection into turbulence, improves heat exchange efficiency, and increases heat exchange area under the condition of identical length and spiral turns. In order to achieve the technical purpose, the invention adopts the following specific technical scheme: the surface type heat regenerator comprises a corrugated plate, wherein the corrugated plate comprises a first corrugated plate and a second corrugated plate; The first corrugated plate and the second corrugated plate are long-strip-shaped corrugated plates, one end of the first corrugated plate is fixedly connected with one end of the second corrugated plate, the other end of the first corrugated plate is fixedly connected with the other end of the second corrugated plate, and the first corrugated plate and the second corrugated plate form a closed ring; the upper surface and the lower surface of the first corrugated plate and the lower surface of the second corrugated plate are respectively provided with a corrugated runner communicated with two end faces of the coiled structure, a first medium runner is formed in the closed loop, and the shape of the closed loop is a second medium runner. Further, the surface regenerator further includes: The separating belts are arranged on two end faces of the coiled structure and are used for separating the coiled structure into a first medium circulation area and a second medium circulation area which are mutually separated; The strake is arranged between the first corrugated plate and the second corrugated plate, is used for being matched with the partition belt to seal the second medium flow passage in the first medium flow area on the end face of the coiled structure, and is also used for being matched with the partition belt to seal the first medium flow passage in the second medium flow area on the end face of the coiled structure. Further, the surface regenerator further includes: The special-shaped seal head is fixed on one end face of the coiled structure and is used for forming the only inlets of all the first medium circulation areas. Further, the surface regenerator further includes: and the sleeve is arranged in the axle center area of the coiled structure and is used for forming the winding axle core of the first corrugated plate and the second corrugated plate. Further, the distribution directions of the corrugated flow passages are all parallel to the central axis of the coiled structure. Further, the corrugated flow passage is a continuous S-shaped flow passage. Further, the cross section of the corrugated flow passage is rectangular. Further, the upper surface of the corrugated plate is composed of corrugated flow passages and corrugated protrusions which are arranged at intervals and have the same shape, and the corrugated protrusions on the upper surface of the corrugated plate are the outer surface plates of the corrugated flow passages on the lower surface of the corrugated plate. Further, the lower surface of the corrugated plate is composed of corrugated flow passages and corrugated protrusions which are arranged at intervals and have the same shape, and the corrugated protrusions on the lower surface of the corrugated plate are the outer surface plates of the corrugated flow passages on the upper surface of the corrugated plate. Further,