CN218545382U - Finned tube heat exchanger suitable for large-scale non-afterburning compressed air energy storage power station - Google Patents
Finned tube heat exchanger suitable for large-scale non-afterburning compressed air energy storage power station Download PDFInfo
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- CN218545382U CN218545382U CN202222652893.0U CN202222652893U CN218545382U CN 218545382 U CN218545382 U CN 218545382U CN 202222652893 U CN202222652893 U CN 202222652893U CN 218545382 U CN218545382 U CN 218545382U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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Abstract
The utility model discloses a finned tube heat exchanger suitable for extensive non-afterburning formula compressed air energy storage power station relates to compressed air energy storage technical field. The finned tube type air conditioner comprises a shell, a tube box and finned tubes, wherein the shell is provided with an air inlet connecting tube and an air outlet connecting tube; the tube box is provided with a heat exchange medium inlet connecting tube, and the top of the tube box is provided with a heat exchange medium outlet connecting tube; the tube box is connected with the shell through a tube plate; the finned tube penetrates through the tube plate. The large-scale compressed air energy storage power station can reduce the number of the heat exchangers and can greatly reduce the resistance of the air side; the heat exchanger has the advantages of improving the running performance of the power station, reducing the total weight of the heat exchanger, reducing the investment of the power station and the like.
Description
Technical Field
The utility model relates to a compressed air energy storage technical field, more specifically says that it is a finned tube heat exchanger suitable for extensive non-afterburning formula compressed air energy storage power station that says so.
Background
The heat exchanger is an important device of a non-afterburning compressed air energy storage system and plays a role in transferring heat energy generated in an energy storage stage to an energy release stage; in the energy storage stage, air is compressed by the compressor, the temperature rises while the pressure rises, the heat exchanger is arranged at the outlet of the compressor to transfer the heat energy of the high-temperature air to the heat storage medium, so that the temperature of the air entering the next section of compressor is reduced, and the efficiency of the compressor is improved; on the other hand, the compressed heat energy is transferred to the heat storage medium and stored; in the energy release stage, the temperature of the air flowing out of the air storage is low, the heat energy stored in the energy storage stage is returned to the air through the heat exchanger, the temperature of the air entering the expansion machine is increased, and the working capacity of the expansion machine is improved.
The heat exchanger of the compressed air energy storage power station has the advantages of large air volume flow (especially in a low-pressure section), large temperature rise (temperature drop) and large heat exchange amount, and the required heat exchange area is large because the convection heat transfer coefficient of the air side is small.
At present, compressed air energy storage power stations all adopt light tube heat exchangers, compressed air runs through the tube side, and heat storage media runs through the shell side. The heat exchange area of the unit volume of the light pipe heat exchanger is small, so that the number of the heat exchangers is large; meanwhile, the air side flow is long, the resistance is large, and the operation performance of the power station is reduced.
If the large-scale compressed air energy storage power station continues to adopt the light pipe heat exchanger, along with the increase of power station capacity, the heat exchanger quantity will double increase, not only leads to heat exchange system investment and occupation of land to increase by a wide margin, and heat exchange system configuration is more complicated moreover, further increases air side resistance, reduces power station operating performance.
Therefore, in order to improve the heat exchange area of the unit volume of the heat exchanger, reduce the number of the heat exchangers, reduce air side resistance, simplify a heat exchange system and improve the operation performance of a power station, it is necessary to develop a finned tube heat exchanger suitable for a large-scale non-afterburning type compressed air energy storage power station.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the defects of the prior art and providing a finned tube heat exchanger which is suitable for a large-scale non-afterburning compressed air energy storage power station.
In order to realize the purpose, the technical scheme of the utility model is that: the finned tube heat exchanger is suitable for large-scale non-afterburning compressed air energy storage power stations and is characterized in that: the finned tube type air conditioner comprises a shell, tube boxes positioned at two ends of the shell, and a plurality of finned tubes which are transversely arranged in parallel at intervals in the shell, wherein a plurality of air inlet connecting tubes are arranged at the top of the shell, and a plurality of air outlet connecting tubes are arranged at the bottom of the shell; the bottom of the tube box is provided with a heat exchange medium inlet connecting tube, and the top of the tube box is provided with a heat exchange medium outlet connecting tube; the tube box is connected with the shell through a tube plate; the finned tube penetrates through the tube plate.
In the technical scheme, a partition plate is arranged in the tube box.
In the above technical scheme, the plurality of finned tubes are connected through a support plate.
In the above technical solution, the tube box includes a front tube box connected to the front end of the housing and a rear tube box connected to the rear end of the housing.
In the above technical solution, the tube plates include a front tube plate connected to the front tube box and a rear tube plate connected to the rear tube box; the top of the front tube box is provided with a heat exchange medium outlet connecting tube, and the bottom of the rear tube box is provided with a heat exchange medium inlet connecting tube.
In the above technical scheme, the tube plates include a front tube plate connected to the front tube box and a floating head tube plate connected to the rear tube box; the top of the front tube box is provided with a heat exchange medium outlet connecting tube, and the bottom of the front tube box is provided with a heat exchange medium inlet connecting tube.
Compared with the prior art, the utility model has the advantages of it is following:
1) The large-scale compressed air energy storage power station can reduce the number of the heat exchangers and can greatly reduce the resistance of the air side; the heat exchanger has the advantages of improving the operation performance of the power station, reducing the total weight of the heat exchanger, reducing the investment of the power station and the like.
2) Extensive compressed air energy storage power station adopts the utility model discloses, reduced and arranged space, civil engineering, pipeline engineering volume, can further improve the economic nature of extensive compressed air energy storage power station whole factory.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.
Fig. 2 is a schematic structural diagram of embodiment 2 of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings, which are not intended to limit the present invention, but are merely exemplary. While the advantages of the invention will be clear and readily appreciated by the description.
With reference to the accompanying drawings: the finned tube heat exchanger is suitable for a large-scale non-afterburning compressed air energy storage power station and is characterized in that: the air conditioner comprises a shell 1, tube boxes 2 positioned at two ends of the shell 1 and a plurality of finned tubes 3 which are positioned in the shell 1 and are transversely arranged in parallel at intervals, wherein a plurality of air inlet connecting tubes 11 are arranged at the top of the shell 1, and a plurality of air outlet connecting tubes 12 are arranged at the bottom of the shell 1; the bottom of the tube box 2 is provided with a heat exchange medium inlet connecting tube 21, and the top of the tube box is provided with a heat exchange medium outlet connecting tube 22; the tube box 2 is connected with the shell 1 through a tube plate 4; the finned tube 3 extends through a tube sheet 4.
A partition plate 23 is provided in the tube box 2.
The fin tubes 3 are connected to each other by a support plate 31.
The header 2 includes a front header 231 coupled to a front end of the housing 1 and a rear header 232 coupled to a rear end of the housing 1.
The tube plate 4 includes a front tube plate 41 connected to the front tube box 231 and a rear tube plate 42 connected to the rear tube box 232; the top of the front pipe box 231 is provided with a heat exchange medium outlet connecting pipe 22, and the bottom of the rear pipe box 232 is provided with a heat exchange medium inlet connecting pipe 21.
The tube plate 4 includes a front tube plate 41 connected to the front tube box 231 and a floating tube plate 43 connected to the rear tube box 232; the top of the front tube box 231 is provided with a heat exchange medium outlet connecting tube 22, and the bottom is provided with a heat exchange medium inlet connecting tube 21.
In actual use, compressed air flows away from the side of the shell 1, and heat storage medium flows away from the side of the finned tube 3. The heat storage medium can be water, heat conducting oil, molten salt and the like.
The finned tube 3 is structured as a low finned tube or a high finned tube. Wherein the low finned tube is an integral finned tube formed by rolling a base tube; the high finned tube is formed by additionally arranging flat fins (smooth fins) on the outer surface of a heat exchange tube (light tube), so that the heat exchange area of unit volume can be increased; or the turbulence fins are additionally arranged on the outer surface of the heat exchange tube, so that the heat exchange area of unit volume is increased, air disturbance is enhanced, the convection heat transfer coefficient of the air side is increased, and the convection heat transfer capacity of the air side is enhanced.
The utility model discloses a finned tube 3 replaces the fluorescent tube to improve heat transfer area of heat exchanger unit volume, reinforcing air side convection heat transfer ability.
The utility model discloses a casing 1 adopt X type casing, pure cross-flow casing promptly, do not use horizontal baffling board, and compressed air side flow is short, and the pressure drop is little.
The top of the shell 1 is provided with a plurality of air inlet connecting pipes 11, the bottom of the shell 1 is provided with a plurality of air outlet connecting pipes 12, compressed air is divided into a plurality of strands, each strand of compressed air enters the heat exchanger from the connecting pipe at the top, and leaves the heat exchanger from the connecting pipe at the bottom after flowing through the tube bundle.
The provision of the plurality of support plates 31 prevents the air flow from inducing vibration of the finned tubes 3.
And a partition plate 23 which is staggered horizontally and vertically is arranged in the tube box 2, so that the number of tube side flows is increased, and the heat exchange under the working condition of large temperature rise (temperature drop) is adapted.
The utility model is suitable for an air heat transfer in 0 ℃ -350 ℃ temperature range, has a wider fin interval selection range to adapt to different resistance requirements.
Safety valves are arranged on the shell side and the pipe side to prevent overpressure.
The finned tube 3 and the tube plate 4 are connected in a mode of combining seal expansion and strength welding, and the sealing performance is guaranteed.
Extensive compressed air energy storage power station adopts the utility model discloses, the quantity of reducible heat exchanger can reduce the resistance of air side simultaneously by a wide margin.
Through calculation, compared with the light pipe heat exchanger, the heat exchanger can reduce the number by 50-60% and the weight by 30-40%, thereby reducing the arrangement space, the civil engineering and the pipeline engineering quantity and greatly reducing the investment; in addition, the resistance of the heat exchanger is reduced, and the electricity-electricity conversion efficiency of the compressed air energy storage power station can be improved by more than 3%.
Example 1
The header 2 includes a front header 231 coupled to a front end of the housing 1 and a rear header 232 coupled to a rear end of the housing 1. The tube plate 4 includes a front tube plate 41 connected to the front tube box 231 and a rear tube plate 42 connected to the rear tube box 232; the top of the front pipe box 231 is provided with a heat exchange medium outlet connecting pipe 22, and the bottom of the rear pipe box 232 is provided with a heat exchange medium inlet connecting pipe 21.
Example 2
The header 2 includes a front header 231 coupled to a front end of the housing 1 and a rear header 232 coupled to a rear end of the housing 1. The tube plate 4 includes a front tube plate 41 connected to the front tube box 231 and a floating tube plate 43 connected to the rear tube box 232; the top of the front tube box 231 is provided with a heat exchange medium outlet connecting tube 22, and the bottom is provided with a heat exchange medium inlet connecting tube 21.
Other parts not described belong to the prior art.
Claims (6)
1. The finned tube heat exchanger is suitable for large-scale non-afterburning compressed air energy storage power stations and is characterized in that: the air conditioner comprises a shell (1), tube boxes (2) positioned at two ends of the shell (1), and a plurality of finned tubes (3) which are transversely arranged in parallel at intervals in the shell (1), wherein a plurality of air inlet connecting tubes (11) are arranged at the top of the shell (1), and a plurality of air outlet connecting tubes (12) are arranged at the bottom of the shell (1); a heat exchange medium inlet connecting pipe (21) is arranged at the bottom of the tube box (2), and a heat exchange medium outlet connecting pipe (22) is arranged at the top of the tube box; the tube box (2) is connected with the shell (1) through a tube plate (4); the finned tube (3) penetrates through the tube plate (4).
2. The finned tube heat exchanger suitable for use in large scale non-post fired compressed air energy storage power plants of claim 1 wherein: a partition plate (23) is arranged in the tube box (2).
3. The finned tube heat exchanger suitable for use in large scale non-post fired compressed air energy storage power plants of claim 2 wherein: the finned tubes (3) are connected with each other through a support plate (31).
4. The finned tube heat exchanger suitable for use in large scale non-post fired compressed air energy storage power plants of claim 3 wherein: the tube box (2) comprises a front tube box (231) connected with the front end of the shell (1) and a rear tube box (232) connected with the rear end of the shell (1).
5. The finned tube heat exchanger suitable for use in large scale non-post fired compressed air energy storage power plants of claim 4 wherein: the tube plate (4) comprises a front tube plate (41) connected with a front tube box (231) and a rear tube plate (42) connected with a rear tube box (232); the top of the front tube box (231) is provided with a heat exchange medium outlet connecting tube (22), and the bottom of the rear tube box (232) is provided with a heat exchange medium inlet connecting tube (21).
6. The finned tube heat exchanger suitable for use in large scale non-after-burning compressed air energy storage power plants of claim 4 wherein: the tube plate (4) comprises a front tube plate (41) connected with a front tube box (231) and a floating head tube plate (43) connected with a rear tube box (232); the top of the front tube box (231) is provided with a heat exchange medium outlet connecting tube (22), and the bottom of the front tube box is provided with a heat exchange medium inlet connecting tube (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222652893.0U CN218545382U (en) | 2022-10-09 | 2022-10-09 | Finned tube heat exchanger suitable for large-scale non-afterburning compressed air energy storage power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222652893.0U CN218545382U (en) | 2022-10-09 | 2022-10-09 | Finned tube heat exchanger suitable for large-scale non-afterburning compressed air energy storage power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218545382U true CN218545382U (en) | 2023-02-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222652893.0U Active CN218545382U (en) | 2022-10-09 | 2022-10-09 | Finned tube heat exchanger suitable for large-scale non-afterburning compressed air energy storage power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218545382U (en) |
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2022
- 2022-10-09 CN CN202222652893.0U patent/CN218545382U/en active Active
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