CN215337866U - Smoke and air pipeline of heat regenerator - Google Patents
Smoke and air pipeline of heat regenerator Download PDFInfo
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- CN215337866U CN215337866U CN202120698600.5U CN202120698600U CN215337866U CN 215337866 U CN215337866 U CN 215337866U CN 202120698600 U CN202120698600 U CN 202120698600U CN 215337866 U CN215337866 U CN 215337866U
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Abstract
The utility model belongs to the technical field of auxiliary equipment of gas turbines, and particularly relates to a smoke and air channel of a heat regenerator, which comprises: the inner cylinder is provided with a flue gas inlet and a flue gas outlet; the outer cylinder is sleeved outside the inner cylinder and is provided with a cold source inlet and a cold source outlet; and the expansion difference compensation device is arranged on the outer cylinder and used for compensating the expansion difference between the axial direction of the inner cylinder and the axial direction of the outer cylinder. The combined flue gas and air pipeline of the heat regenerator provided by the utility model has a compact structure, can ensure that the inlets and the outlets of the flue gas and air pipeline are uniformly arranged on the same side, can flexibly adapt to the requirement of pipeline arrangement, is provided with the expansion difference compensation device, can compensate the expansion difference of the inner cylinder and the outer cylinder caused by different temperatures of heat exchange media, and avoids the problem of medium leakage caused by cracking of the joint of the inner cylinder and the outer cylinder.
Description
Technical Field
The utility model belongs to the technical field of auxiliary equipment of gas turbines, and particularly relates to a smoke and air channel of a 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. In order to fully utilize the space, realize the flexible arrangement, reduce the thermal inertia, require the compact structure of regenerator. The flue gas and air inlet and outlet of the existing heat regenerator are mostly arranged on different sides of the heat regenerator, are mutually independent and relatively occupy larger space.
SUMMERY OF THE UTILITY MODEL
In view of the above, the utility model provides a combined flue gas and air duct of a heat regenerator, which has a compact structure, can enable inlets and outlets of the flue gas and air duct to be uniformly arranged on the same side, can flexibly adapt to the requirement of pipeline arrangement, is provided with an expansion difference compensation device, can compensate the expansion difference of an inner cylinder and an outer cylinder caused by different temperatures of heat exchange media, and avoids the problem of medium leakage caused by cracking of a joint of the inner cylinder and the outer cylinder.
In order to achieve the technical purpose, the utility model adopts the following specific technical scheme:
a regenerator flue gas duct comprising:
the inner cylinder is provided with a flue gas inlet and a flue gas outlet;
the outer cylinder is sleeved outside the inner cylinder and is provided with a cold source inlet and a cold source outlet;
and the expansion difference compensation device is arranged on the outer cylinder and used for compensating the expansion difference between the axial direction of the inner cylinder and the axial direction of the outer cylinder.
Further, the expansion difference compensation device is an expansion joint.
Furthermore, the cold source inlet is arranged on one side, close to the flue gas inlet, of the outer barrel, and the cold source outlet is arranged on one side, close to the flue gas outlet, of the outer barrel.
Furthermore, the inner cylinder is a straight cylinder, and a flue gas inlet and a flue gas outlet are formed at two ends of the inner cylinder.
Further, the inner cylinder and the outer cylinder are coaxially arranged.
Furthermore, two ends of the outer cylinder are fixed on the inner cylinder through a housing or a blocking ring, and a sealed space for removing the cold source inlet and the cold source outlet is formed between the inner cylinder and the outer cylinder.
Furthermore, the cold source inlets are in multiple groups.
Furthermore, the cold source inlets are uniformly and annularly distributed on the outer cylinder.
By adopting the technical scheme, the utility model can bring the following beneficial effects:
the combined smoke and air pipeline is used, so that the structure of the heat regenerator is more compact, hot smoke axially enters along the central line and circularly flows back with hot air, the structure is symmetrical, the flow field is uniform, and the flow deviation is small.
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 structural diagram of a regenerator flue gas duct in accordance with an embodiment of the present invention;
wherein: the device comprises a flue gas inlet (1), an inner cylinder (2), an outer cylinder (3), a housing (4), a stop ring (5), a cold source inlet (6), a cold source outlet (7) and an expansion joint (8).
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 utility model, and not restrictive of the full scope of the utility model. The utility model 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 of the present invention, a regenerator flue gas duct is provided for use in a flue gas-engine intake regenerator of a gas turbine, comprising:
the inner cylinder 2 is provided with a flue gas inlet 1 and a flue gas outlet;
the outer cylinder 3 is sleeved outside the inner cylinder 2 and is provided with a cold source inlet 6 and a cold source outlet 7;
and the expansion difference compensation device is arranged on the outer cylinder 3 and used for compensating the expansion difference between the axial direction of the inner cylinder 2 and the axial direction of the outer cylinder 3.
In this embodiment, the expansion difference compensation device is an expansion joint 8 or other mechanical deformation compensation device.
In this embodiment, the cold source inlet 6 is disposed on one side of the outer cylinder 3 close to the flue gas inlet 1, and the cold source outlet 7 is disposed on one side of the outer cylinder 3 close to the flue gas outlet.
In this embodiment, the inner cylinder 2 is a straight cylinder, and two ends form a flue gas inlet 1 and a flue gas outlet. The flue gas inlet 1 is provided with a flange interface for connecting other pipelines.
In the present embodiment, the inner cylinder 2 is disposed coaxially with the outer cylinder 3.
In this embodiment, two ends of the outer cylinder 3 are fixed on the inner cylinder 2 through the cover 4 or the blocking ring 5, and a sealed space of the cold source removing inlet 6 and the cold source outlet 7 is formed between the inner cylinder 2 and the outer cylinder 3.
In this embodiment, in order to increase the inlet flow, the cold source inlets 6 are provided in a plurality of groups.
In this embodiment, each cold source inlet 6 is uniformly and annularly distributed on the outer cylinder 3, adopts DN50 pipeline, is made of S32168, has a thickness of 2mm, is arranged on the outer cylinder 3 by welding process, and is provided with a flange interface for connecting other pipelines.
In this embodiment, the cold source outlet 7 is made of a DN200 pipe, is made of S32168, has a thickness of 5mm, and is provided with a flange connector for connecting other pipes.
In this embodiment, the inner cylinder 2 of this embodiment adopts DN200 pipeline, the material is S32168, the length is 1400mm, the thickness is 3 mm; the outer cylinder 3 adopts a DN300 pipeline, is made of S32168, has the length of 1200mm and the thickness of 3 mm; one end of the outer cylinder 3 is away from the 400mm position of the flue gas inlet 1, and is welded with the inner cylinder 2 through the cover 4 with the circular ring curved surface, and the other end is flush with the inner cylinder 2 and is welded with the inner cylinder 2 through the circular ring-shaped stop ring 5.
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 (8)
1. A regenerator flue gas duct, comprising:
the inner cylinder is provided with a flue gas inlet and a flue gas outlet;
the outer cylinder is sleeved outside the inner cylinder and is provided with a cold source inlet and a cold source outlet;
and the expansion difference compensation device is arranged on the outer cylinder and used for compensating the expansion difference between the axial direction of the inner cylinder and the axial direction of the outer cylinder.
2. The flue gas duct of claim 1, wherein: the expansion difference compensation device is an expansion joint.
3. The flue gas duct of claim 1, wherein: the cold source inlet is arranged on one side, close to the flue gas inlet, of the outer barrel, and the cold source outlet is arranged on one side, close to the flue gas outlet, of the outer barrel.
4. The flue gas duct of claim 3, wherein: the inner cylinder is a straight cylinder, and a flue gas inlet and a flue gas outlet are formed at two ends of the inner cylinder.
5. The flue gas duct of claim 4, wherein: the inner cylinder and the outer cylinder are coaxially arranged.
6. The flue gas duct of claim 5, wherein: the two ends of the outer cylinder are fixed on the inner cylinder through a housing or a blocking ring, and a sealed space for removing the cold source inlet and the cold source outlet is formed between the inner cylinder and the outer cylinder.
7. The flue gas duct of claim 6, wherein: the cold source inlets are multiple groups.
8. The flue gas duct of claim 7, wherein: and the cold source inlets are uniformly and annularly distributed on the outer barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120698600.5U CN215337866U (en) | 2021-04-06 | 2021-04-06 | Smoke and air pipeline of heat regenerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120698600.5U CN215337866U (en) | 2021-04-06 | 2021-04-06 | Smoke and air pipeline of heat regenerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215337866U true CN215337866U (en) | 2021-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120698600.5U Active CN215337866U (en) | 2021-04-06 | 2021-04-06 | Smoke and air pipeline of heat regenerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215337866U (en) |
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2021
- 2021-04-06 CN CN202120698600.5U patent/CN215337866U/en active Active
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