CN113153534A - Surface type heat regenerator - Google Patents
Surface type heat regenerator Download PDFInfo
- Publication number
- CN113153534A CN113153534A CN202110369100.1A CN202110369100A CN113153534A CN 113153534 A CN113153534 A CN 113153534A CN 202110369100 A CN202110369100 A CN 202110369100A CN 113153534 A CN113153534 A CN 113153534A
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- China
- Prior art keywords
- corrugated
- corrugated plate
- plate
- regenerator
- roll
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/08—Heating air supply before combustion, e.g. by exhaust gases
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/12—Cooling of plants
- F02C7/14—Cooling of plants of fluids in the plant, e.g. lubricant or fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/12—Cooling of plants
- F02C7/16—Cooling of plants characterised by cooling medium
- F02C7/18—Cooling of plants characterised by cooling medium the medium being gaseous, e.g. air
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention belongs to the technical field of auxiliary equipment of gas turbines, and particularly relates to a surface type heat regenerator. Comprises a corrugated plate; the corrugated plates comprise a first corrugated plate and a second corrugated plate; the first corrugated plate and the second corrugated plate are strip-shaped corrugated plates, and two ends of the first corrugated plate are respectively fixed to two ends of the second corrugated plate to form closed rings; the first corrugated plate and the second corrugated plate are arranged in parallel and are curled to form a roll-shaped structure; the upper surface and the lower surface of the first corrugated plate and the second corrugated plate are respectively provided with a corrugated flow passage which is communicated with two end surfaces of the roll-shaped structure; a first medium flow passage is formed in the closed ring, and a second medium flow passage is formed outside the closed ring. The surface type heat regenerator provided by the invention is formed by integrally winding 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.
Description
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, distributed energy is continuously developed along with the change of an energy structure, the micro gas turbine is widely used in some fields, the micro gas turbine adopts simple circulation and consists of a gas compressor, a combustion chamber and a turbine, a combined circulation waste heat furnace is not used for recovering the heat of flue gas, the temperature of the flue gas discharged from the micro gas turbine is up to 500-700 ℃, if the flue gas is directly discharged, great energy waste is caused, a heat regenerator is usually arranged at the outlet of the gas turbine, the heat regenerator is a gas-gas heat exchanger and is used for exchanging heat between the air compressed by the gas compressor and the gas discharged by the turbine, the temperature of the air entering the combustion chamber is increased, the combustion temperature is increased, and the temperature of the flue gas can be reduced, so that the effect of increasing the heat efficiency of the gas turbine is achieved, the fuel consumption is reduced.
The existing 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 present 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 to turbulence, improves heat exchange efficiency, and increases a heat exchange area under the condition that the length and the number of spiral turns are the same.
In order to achieve the technical purpose, the invention adopts the following specific technical scheme:
a surface type heat regenerator comprises corrugated plates; the corrugated plates comprise a first corrugated plate and a second corrugated plate;
the first corrugated plate and the second corrugated plate are 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 first corrugated plate and the second corrugated plate are arranged in parallel and are curled to form a roll-shaped structure;
the upper surface and the lower surface of the first corrugated plate and the second corrugated plate are respectively provided with a corrugated flow passage which is communicated with two end surfaces of the roll-shaped structure; a first medium flow passage is formed in the closed ring, and a second medium flow passage is formed outside the closed ring.
Further, the surface type regenerator further includes:
the separation belts are arranged on two end faces of the roll-shaped structure and are used for separating the roll-shaped structure into a first medium flowing area and a second medium flowing area which are separated from each other;
the strake sets up first buckled plate with between the second buckled plate, be used for the cooperation separate the area and be in the terminal surface of roll structure is sealed second medium runner in the first medium circulation region, still be used for the cooperation separate the area and be in the terminal surface of roll structure is sealed first medium runner in the second medium circulation region.
Further, the surface type regenerator further includes:
and the special-shaped end socket is fixed on one end surface of the coiled structure and is used for forming the only inlet of all the first medium flowing areas.
Further, the surface type regenerator further includes:
and the sleeve is arranged in the shaft center area of the roll-shaped structure and used for forming a winding shaft core of the first corrugated plate and the second corrugated plate.
Furthermore, the distribution directions of the corrugated flow passages are all parallel to the central axis of the roll-shaped structure.
Further, the corrugated flow channel is a continuous S-shaped flow channel.
Further, the cross section of the corrugated flow channel is rectangular.
Furthermore, the upper surface of the corrugated plate consists of corrugated runners and corrugated bulges which are same in shape and are arranged at intervals; the corrugated bulges on the upper surface of the corrugated plate are outer surface plates of the corrugated flow channels on the lower surface of the corrugated plate.
Furthermore, the lower surface of the corrugated plate consists of corrugated runners and corrugated bulges which are same in shape and are arranged at intervals; the corrugated bulges on the lower surface of the corrugated plate are outer surface plates of the corrugated flow channel on the upper surface of the corrugated plate.
Further, the corrugated plate is manufactured by a stamping process.
Further, the edge strips are welded to the roll structure.
Furthermore, the winding starting end and the winding stopping end of the corrugated plate in the roll-shaped structure are transition sections; the outer surface of the cylinder of the roll-shaped structure is sleeved with an outer surrounding plate and a reinforcing steel strip.
By adopting the technical scheme, the invention can bring the following beneficial effects:
the surface type heat regenerator can be integrally formed, so that the welding workload is reduced, and meanwhile, because the two integral corrugated plates and media on two sides naturally form two different flow channels, the sealing performance is good, and the welding workload of the traditional original surface type heat regenerator is also reduced. In addition, the invention solves the problems of different sizes and different types of heat exchange elements of the traditional heat regenerator due to different heat exchange areas, and has the advantages that the outer diameter of the corrugated plate unit can be adjusted according to the different heat exchange areas, namely the rolling length of the corrugated plate unit can be adjusted, the flexibility is high, the utilization rate of corrugated plate materials is close to 100 percent, and almost no waste exists.
The surface type heat regenerator has the advantages of simple structure, easy realization of process and low processing cost, can realize automation, greatly improves the heat exchange efficiency on the performance, reduces the pressure loss and simultaneously improves the compactness of the heat regenerator. More importantly, the sealing performance of the whole regenerator core is ensured because no welding seam exists between the axial corrugated plates. Meanwhile, the manufacturing time of the heat exchange core body of the heat regenerator is greatly shortened, the cost is reduced, and the efficient and compact heat exchanger can serve more civil fields.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic external structural view of a surface type regenerator according to an embodiment of the present invention;
fig. 2 is an exploded view of a coil structure of a surface type regenerator in accordance with an embodiment of the present invention;
FIG. 3 is a diagram illustrating a partial relationship between first corrugated plates and second corrugated plates of a surface regenerator according to an embodiment of the present invention;
wherein: 1. a sleeve; 2. an inner transition section; 3. a second medium flow passage 4 and a first corrugated plate; 5. a second corrugated plate; 6. edging; 7. a second media flow-through region; 8. sealing heads in special shapes; 9. an outer transition section; 10. a peripheral plate; 11. and reinforcing the steel strip.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that various aspects of the embodiments are described below within the scope of the appended claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the disclosure, one skilled in the art should appreciate that one aspect described herein may be implemented independently of any other aspects and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented and/or a method practiced using any number of the aspects set forth herein. Additionally, such an apparatus may be implemented and/or such a method may be practiced using other structure and/or functionality in addition to one or more of the aspects set forth herein.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the drawings only show the components related to the present invention rather than the number, shape and size of the components in practical implementation, and the type, quantity and proportion of the components in practical implementation can be changed freely, and the layout of the components can be more complicated.
In addition, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects may be practiced without these specific details.
In one embodiment, a surface regenerator is provided, as shown in fig. 1, comprising corrugated plates; the corrugated plates comprise a first corrugated plate 4 and a second corrugated plate 5;
the first corrugated plate 4 and the second corrugated plate 5 are strip-shaped corrugated plates, one end of the first corrugated plate 4 is fixedly connected with one end of the second corrugated plate 5, the other end of the first corrugated plate 4 is fixedly connected with the other end of the second corrugated plate 5, and the first corrugated plate 4 and the second corrugated plate 5 form a closed ring; the first corrugated plate 4 and the second corrugated plate 5 are arranged in parallel and are curled to form a roll-shaped structure;
the upper surfaces and the lower surfaces of the first corrugated plate 4 and the second corrugated plate 5 are respectively provided with a corrugated flow passage which is communicated with two end surfaces of the roll-shaped structure; the closed ring forms a first medium flow passage inside and a second medium flow passage 3 outside.
The embodiment utilizes the buckled plate to the heat regenerator, can increase heat transfer area to the medium that makes in flowing through the heat regenerator is turned into the torrent by the advection, has promoted the heat exchange efficiency of heat exchanger by a wide margin.
In one embodiment, as shown in fig. 1 or fig. 3, the surface type regenerator further includes:
spacer tapes (covered by the edge part of the special-shaped seal head 8 in fig. 1, not shown in fig. 3) arranged on two end faces of the coil structure for dividing the coil structure into a first medium flowing area and a second medium flowing area 7 which are separated from each other;
and the edge strip 6 is arranged between the first corrugated plate 4 and the second corrugated plate 5, is used for being matched with the separation strip to seal the second medium flow channel 3 in the first medium circulation area at the end face of the roll structure, and is also used for being matched with the separation strip to seal the first medium flow channel in the second medium circulation area 7 at the end face of the roll structure.
In this embodiment, as shown in fig. 1, the end surfaces of the first medium flow region and the second medium flow region 7 are both fan-shaped, the strake 6 plugs the first medium flow channel in the first medium region, and plugs the second medium flow channel 3 in the second medium region, which is embodied in a specific structure as interlaced plugging, and the strakes 6 of two adjacent first medium flow regions and second medium flow regions 7 are distributed in a staggered manner; this kind of structure can guarantee only to let in first medium to all first medium circulation regions, only when letting in the second medium to all second medium circulation regions 7, two kinds of media can not mix, and only be separated by a buckled plate between first medium and the second medium, because the multiple spot is separated and is let in first medium and second medium, has improved the utilization ratio of buckled plate, makes it almost not extravagant, makes the heat exchange efficiency of the regenerator of this embodiment increase substantially.
In this embodiment, as shown in fig. 1, the surface type regenerator further includes:
the special-shaped seal head 8 is fixed on one end face of the coiled structure and is used for forming the only inlets of all the first medium flowing areas;
in this embodiment, the end faces of the first medium circulation regions have the same shape, as shown in the figure, the special-shaped end enclosure 8 includes a near-leak shape which is fastened in the first medium circulation regions and has the same shape, and the bottom is provided with a vent hole through which the first medium is conducted into each vent hole; and a special-shaped end socket 8 is arranged on the other end face of the coiled structure corresponding to the end face.
In this embodiment, the surface type regenerator further includes:
and the sleeve 1 is arranged in the shaft center area of the roll-shaped structure and is used for forming a winding shaft core of the first corrugated plate 4 and the second corrugated plate 5.
In this embodiment, in order to reduce the assembly difficulty, the distribution directions of the corrugated flow channels are all parallel to the central axis of the roll structure.
In one embodiment, as shown in fig. 2 or 3, the corrugated flow channels are continuous S-shaped flow channels.
In the present embodiment, as shown in fig. 2 or 3, the cross section of the corrugated flow channel is rectangular.
In the present embodiment, as shown in fig. 2 or fig. 3, the upper surface of the corrugated plate is composed of corrugated flow channels and corrugated protrusions arranged at intervals and having the same shape; the corrugated bulges on the upper surface of the corrugated plate are outer surface plates of the corrugated flow channels on the lower surface of the corrugated plate.
In the present embodiment, as shown in fig. 2 or fig. 3, the lower surface of the corrugated plate is composed of corrugated flow channels and corrugated protrusions arranged at intervals and having the same shape; the corrugated bulges on the lower surface of the corrugated plate are outer surface plates of the corrugated flow channels on the upper surface of the corrugated plate.
In the embodiment, the corrugated plate is made by a stamping process, so that the edge strips 6 are conveniently sealed, the side edge parts of the corrugated plate are stamped into a flat plate shape, the flat plate part and the upper surfaces of the corrugated bulges on one surface are positioned on the same plane, and the smooth S-shaped flow channel on the other surface is ensured.
In one embodiment both the edge strip 6 and the spacer strip are welded to the roll structure by MIG welding.
In one embodiment, as shown in fig. 1, in order to ensure air tightness and stability, the winding start end of the two corrugated plates in the roll structure is a transition section; the cylindrical outer surface of the roll-shaped structure is sleeved with a peripheral plate 10 and a reinforcing steel strip 11.
The inner transition section 2 can be formed by gradually transiting a plurality of layers of thin steel plates, so that a gap with a set thickness is formed between two corrugated plates; the outer transition section 9 is transited into a gentle ring shape by adopting a similar method, then the ring shape is wrapped by the outer surrounding plate 10 and welded into a ring shape, and finally the ring shape is sleeved by the reinforcing steel strip 11 to prevent the rolled heat exchange core body unit from deforming and loosening.
The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A surface type heat regenerator is characterized in that: comprises a corrugated plate; the corrugated plates comprise a first corrugated plate and a second corrugated plate;
the first corrugated plate and the second corrugated plate are 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 first corrugated plate and the second corrugated plate are arranged in parallel and are curled to form a roll-shaped structure;
the upper surface and the lower surface of the first corrugated plate and the second corrugated plate are respectively provided with a corrugated flow passage which is communicated with two end surfaces of the roll-shaped structure; a first medium flow passage is formed in the closed ring, and a second medium flow passage is formed outside the closed ring.
2. The surface type regenerator of claim 1, further comprising:
the separation belts are arranged on two end faces of the roll-shaped structure and are used for separating the roll-shaped structure into a first medium flowing area and a second medium flowing area which are separated from each other;
the strake sets up first buckled plate with between the second buckled plate, be used for the cooperation separate the area and be in the terminal surface of roll structure is sealed second medium runner in the first medium circulation region, still be used for the cooperation separate the area and be in the terminal surface of roll structure is sealed first medium runner in the second medium circulation region.
3. The surface type regenerator of claim 2, further comprising:
and the special-shaped end socket is fixed on one end surface of the coiled structure and is used for forming the only inlet of all the first medium flowing areas.
4. The surface type regenerator of claim 1, further comprising:
and the sleeve is arranged in the shaft center area of the roll-shaped structure and used for forming a winding shaft core of the first corrugated plate and the second corrugated plate.
5. The surface regenerator of claim 1, wherein the corrugated flow channels are distributed in a direction parallel to a central axis of the coil structure.
6. The surface regenerator of claim 1 wherein the corrugated flow channel is a continuous S-shaped flow channel and the corrugated flow channel has a rectangular cross-section.
7. The surface regenerator of claim 6, wherein the upper surface of the corrugated plate is composed of corrugated channels and corrugated protrusions with the same shape and arranged at intervals; the corrugated bulges on the upper surface of the corrugated plate are outer surface plates of the corrugated flow channel on the lower surface of the corrugated plate; the lower surface of the corrugated plate consists of corrugated runners and corrugated bulges which are same in shape and are arranged at intervals; the corrugated bulges on the lower surface of the corrugated plate are outer surface plates of the corrugated flow channel on the upper surface of the corrugated plate.
8. The surface regenerator of claim 7 wherein the corrugated plates are made by a stamping process.
9. The surface regenerator of claim 8 wherein the strakes are welded to the scroll.
10. The surface type regenerator of claim 1, wherein the winding start end of the corrugated plate in the coil structure is a transition section; the outer surface of the cylinder of the roll-shaped structure is sleeved with an outer surrounding plate and a reinforcing steel strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110369100.1A CN113153534A (en) | 2021-04-06 | 2021-04-06 | Surface type heat regenerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110369100.1A CN113153534A (en) | 2021-04-06 | 2021-04-06 | Surface type heat regenerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113153534A true CN113153534A (en) | 2021-07-23 |
Family
ID=76888707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110369100.1A Pending CN113153534A (en) | 2021-04-06 | 2021-04-06 | Surface type heat regenerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113153534A (en) |
-
2021
- 2021-04-06 CN CN202110369100.1A patent/CN113153534A/en active Pending
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