CN216693884U - Exhaust system of large-scale pumped storage power station - Google Patents
Exhaust system of large-scale pumped storage power station Download PDFInfo
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- CN216693884U CN216693884U CN202220309107.4U CN202220309107U CN216693884U CN 216693884 U CN216693884 U CN 216693884U CN 202220309107 U CN202220309107 U CN 202220309107U CN 216693884 U CN216693884 U CN 216693884U
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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
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Abstract
The utility model provides an exhaust system of a large pumped storage power station, which consists of a ground exhaust fan room, an upper exhaust tunnel, an exhaust vertical shaft, a lower exhaust tunnel, a plurality of main transformer exhaust branch tunnels and main transformer tunnels. The main transformer exhaust branch tunnel collects and guides the circulating air in the main transformer tunnel into an exhaust lower horizontal tunnel; one end of the air exhaust vertical shaft is connected with the air exhaust upper horizontal tunnel, the other end of the air exhaust vertical shaft is connected with the air exhaust lower horizontal tunnel, and circulating air of the air exhaust lower horizontal tunnel is exhausted to the air exhaust upper horizontal tunnel; the upper horizontal tunnel of the exhaust air is connected with the ground exhaust fan room, and finally the circulating air is led to the ground exhaust fan room and leaves the factory side by side. The utility model effectively solves the air exhaust problem of the large pumped storage power station, reduces harmful gas in the large pumped storage power station and further ensures the personal safety of operation and maintenance personnel.
Description
Technical Field
The utility model relates to an exhaust system, in particular to an exhaust system of a large pumped storage power station.
Background
Main electromechanical equipment of the pumped storage power station is usually located in an underground cavern with the burial depth of 200-400 m, and the underground cavern is usually composed of a main plant cavern, a bus duct, a main transformer cavern, a tail gate cavern and other auxiliary caverns. Electromechanical equipment is arranged in underground main building hole, and the span of underground main building hole is 25 ~ 26m generally. The ventilation effect of the underground main plant hole of the pumped storage power station has important significance for the operation of the power station, and the underground main plant hole is large in buried depth and large in span, so that the problems that the arrangement difficulty of an underground cavern exhaust system is large and the construction cost is high are solved.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides an exhaust system of a large pumped storage power station, which can effectively solve the problems.
The technical scheme adopted by the utility model is as follows:
the utility model provides an exhaust system of a large pumped storage power station, which comprises: the system comprises a ground exhaust fan room (1), an upper exhaust flat tunnel (2), an exhaust vertical shaft (3), a lower exhaust flat tunnel (4), a main transformer exhaust branch tunnel (5) and a main transformer tunnel (6);
-arranging said main substation cavern (6) at the downstream side of an underground main plant cavern; wherein the air exhaust end of the underground main plant hole is communicated with the air inlet end of the main transformer hole (6);
arranging the exhaust lower horizontal tunnel (4) at the downstream side of the main transformer tunnel (6); wherein, the main transformer tunnel (6) is provided with a plurality of air exhaust ends, and the air exhaust end of each main transformer tunnel (6) is communicated with the air inlet end of the air exhaust lower level tunnel (4) through one main transformer air exhaust branch tunnel (5);
the bottom air inlet end of the air exhaust vertical shaft (3) is communicated with the air exhaust end of the air exhaust lower horizontal tunnel (4); the top air exhaust end of the air exhaust vertical shaft (3) is communicated with the air inlet end of the air exhaust upper flat tunnel (2), and the air exhaust end of the air exhaust upper flat tunnel (2) extends to the ground and is communicated with the air inlet end of the ground air exhaust fan room (1) located on the ground.
Preferably, a plurality of units are arranged in the underground main plant hole, and each unit is communicated with the main plant hole (6) through a bus hole.
Preferably, the air inlet end at the bottom of the air exhaust vertical shaft (3) and the air exhaust end of the air exhaust lower horizontal tunnel (4) are positioned at the same height.
Preferably, the height of the bottom plate of the air exhaust lower horizontal tunnel (4) is higher than that of the bottom plate of the main transformer tunnel (6).
Preferably, the air exhaust upper flat tunnel (2) comprises a horizontal section (2-1) and an inclined section (2-2); the high-level end of the inclined section (2-2) is communicated with one end of the horizontal section (2-1); the low-level end of the inclined section (2-2) is communicated with the top air exhaust end of the air exhaust vertical shaft (3).
Preferably, the air exhaust vertical shaft (3) is a hollow cylinder, the inner wall of the air exhaust vertical shaft adopts a net hanging and guniting structure, and the outer wall of the air exhaust vertical shaft is reinforced by a mortar anchor rod.
Preferably, the main transformer exhaust branch holes (5) are of an urban door hole type; the drainage ditch is arranged on one side of the lower portion of the roof arch system, the roof arch system anchor rods are used for reinforcement, the random anchor rods are used for reinforcement on two sides of the roof arch system anchor rods, and the hanging net guniting structure is adopted on the periphery of the roof arch system anchor rods.
Preferably, the lower exhaust flat tunnel (4) is of an urban door opening type; the lower part of the concrete pavement is paved, drainage ditches are arranged on two sides of the concrete pavement, a net hanging and mortar spraying structure is adopted around the concrete pavement, and a mortar anchor rod is used for reinforcement.
The air exhaust system of the large pumped storage power station provided by the utility model has the following advantages:
the utility model provides an exhaust system of a large pumped storage power station, which has a clear and reasonable architectural arrangement structure, is economical and practical; the underground main plant hole structure of the large pumped storage power station is not changed, and the underground cavern group excavation supporting difficulty and the engineering investment are greatly reduced only by increasing the connection mode of the underground main plant hole and the ground exhaust building; the problem of large-scale pumped storage power station air exhaust is effectively solved, harmful gas in the large-scale pumped storage power station is reduced, and personal safety of operation and maintenance personnel is further guaranteed.
Drawings
FIG. 1 is an overall block diagram of the exhaust system of a large pumped-storage power station of the present invention;
FIG. 2 is an elevation view of an exhaust flat tunnel of a large pumped-storage power station provided by the present invention;
FIG. 3 is an elevation view of a main transformer exhaust branch tunnel of the large pumped storage power station of the present invention;
in the figure:
1- - -ground exhaust fan house; 2- -go up the flat tunnel in the air exhaust; 2-1- - -a horizontal segment; 2-2- - -an inclined section;
3-a ventilation vertical shaft; 4- -air exhaust lower horizontal tunnel; 5- -main transformer exhaust branch tunnel; 6-main transformer hole.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
The utility model provides an exhaust system of a large pumped storage power station, which has a clear and reasonable architectural arrangement structure, is economical and practical; the underground main plant hole structure of the large pumped storage power station is not changed, and the underground cavern group excavation supporting difficulty and the engineering investment are greatly reduced only by increasing the connection mode of the underground main plant hole and the ground exhaust building; the problem of large-scale pumped storage power station air exhaust is effectively solved, harmful gas in the large-scale pumped storage power station is reduced, and personal safety of operation and maintenance personnel is further guaranteed.
The utility model provides an exhaust system of a large pumped storage power station, and with reference to fig. 1, the exhaust system comprises: the system comprises a ground exhaust fan room 1, an upper exhaust flat tunnel 2, an exhaust vertical shaft 3, a lower exhaust flat tunnel 4, a main transformer exhaust branch tunnel 5 and a main transformer tunnel 6;
arranging a main transformer hole 6 at the downstream side of the underground main plant hole; wherein, the air exhaust end of the underground main plant hole is communicated with the air inlet end of the main transformer hole 6; as a concrete implementation mode, a plurality of units are arranged in the underground main plant hole, and each unit is communicated to the main transformer hole 6 through a bus hole.
An exhaust lower flat tunnel 4 is arranged at the downstream side of the main transformer tunnel 6; wherein, the height of the bottom plate of the lower exhaust adit 4 is higher than that of the bottom plate of the main transformer tunnel 6. The main transformer tunnel 6 is provided with a plurality of air exhaust ends, and the air exhaust end of each main transformer tunnel 6 is communicated with the air inlet end of the lower air exhaust tunnel 4 through a main transformer air exhaust branch tunnel 5;
the bottom air inlet end of the air exhaust vertical shaft 3 is communicated with the air exhaust end of the air exhaust lower horizontal tunnel 4; wherein, the bottom air inlet end of the air exhaust vertical shaft 3 and the air exhaust end of the air exhaust lower horizontal tunnel 4 are positioned at the same height.
The top air exhaust end of the air exhaust vertical shaft 3 is communicated with the air inlet end of the air exhaust upper flat tunnel 2, and the air exhaust end of the air exhaust upper flat tunnel 2 extends to the ground and is communicated with the air inlet end of the ground air exhaust fan room 1 positioned on the ground. Wherein, ground exhaust fan room 1, set up near the switching station. As a specific implementation mode, the upper exhaust flat tunnel 2 comprises a horizontal section 2-1 and an inclined section 2-2; the high-level end of the inclined section 2-2 is communicated with one end of the horizontal section 2-1; the low-level end of the inclined section 2-2 is communicated with the top air exhaust end of the air exhaust shaft 3.
In the utility model, the air exhaust vertical shaft 3 is a hollow cylinder, the inner wall adopts a net hanging guniting structure, and the outer wall is reinforced by a mortar anchor rod. Two ends are respectively connected with the upper air exhaust flat tunnel 2 and the lower air exhaust flat tunnel 4.
In the utility model, the main transformer exhaust branch holes 5 are of an urban door hole type; the drainage ditch is arranged on one side of the lower portion of the roof arch system, the roof arch system anchor rods are used for reinforcement, the random anchor rods are used for reinforcement on two sides of the roof arch system anchor rods, and the hanging net guniting structure is adopted on the periphery of the roof arch system anchor rods.
In the utility model, the lower exhaust flat tunnel 4 is of an urban door opening type; the lower part of the concrete pavement is paved, drainage ditches are arranged on two sides of the concrete pavement, a net hanging and mortar spraying structure is adopted around the concrete pavement, and a mortar anchor rod is used for reinforcement.
The utility model provides an exhaust system of a large pumped storage power station, which has the exhaust principle that:
a plurality of main transformer exhaust branch holes 5 collect and guide the circulating air in the main transformer holes 6 into the exhaust lower level tunnel 4; one end of the air exhaust vertical shaft is connected with the air exhaust upper flat tunnel 2, and the other end of the air exhaust vertical shaft is connected with the air exhaust lower flat tunnel 4, so that the circulating air of the air exhaust lower flat tunnel 4 is exhausted to the air exhaust upper flat tunnel 2; the upper exhaust flat tunnel 2 is connected with the ground exhaust fan room 1, and finally the circulating air is led to the ground exhaust fan room 1 and leaves the factory side by side.
The underground air exhaust system of the large pumped storage power station is formed by an upper air exhaust adit 2, an air exhaust vertical shaft 3, a lower air exhaust adit 4, a plurality of main transformer air exhaust branch holes 5 and main transformer holes 6.
The utility model provides an exhaust system of a large pumped storage power station, wherein a main transformer exhaust branch hole 5 is of an urban door hole type, a drainage ditch is arranged on one side of the lower part, the top of the main transformer exhaust branch hole is reinforced by a roof arch system anchor rod, two sides of the main transformer exhaust branch hole are reinforced by random anchor rods, and the periphery of the main transformer exhaust branch hole is subjected to net hanging and slurry spraying treatment. A ventilation system is formed by the underground cavern and the ground exhaust structure, harmful gas is exhausted out of a factory, and the safety and stability of the operation of the large pumped storage power station are guaranteed. The underground cavern comprises an upper exhaust flat tunnel 2, an exhaust vertical shaft 3, a lower exhaust flat tunnel 4 and a plurality of main transformer exhaust branch tunnels 5, so that an underground exhaust system of the large pumped storage power station is formed. Two ends of the upper exhaust flat tunnel 2 are respectively connected with a ground exhaust fan room 1 and an exhaust vertical shaft 3 to form an exhaust system.
The structure of the utility model greatly reduces the excavation supporting difficulty and the engineering investment of the underground cavern group; the air exhaust structure of the large pumped storage power station is optimized, the structure is safe and reliable, and the operation and maintenance are convenient.
The following further description takes a certain large pumped storage power station project adopting the technical scheme of the utility model as an example and combines the accompanying drawings:
in a large pumped storage power station project, a factory building is an underground factory building, the excavation height of a top arch is 1008.50m, the excavation height of a bottom plate is 953.50, the height of the factory building is 55.0m, the underground factory building consists of a 1# main and auxiliary factory building, a 1# to 6# main engine room, an installation field, a 7# to 12# main engine room and a 2# main and auxiliary factory building, the underground factory building is arranged in a shape like a Chinese character 'yi', the total length of an underground main factory building hole is 414.0m, the width of the underground main factory building hole is 25.0m, and 10 300MW constant-speed reversible storage units and 2 300MW variable-speed reversible storage units are installed in the main engine rooms; the main transformer hole 6 is arranged on the downstream side of the underground main plant hole in parallel, the clear distance from the underground main plant hole is 40m, a main transformer, SFC and other equipment are arranged, and the excavation size of the main transformer hole 6 is 450.5m multiplied by 21.0m multiplied by 22.5 m; the bus hole is located between underground main plant hole and main transformer hole 6, and each unit is provided with a bus hole, and the length of each bus hole is 40 m. For example, a 11# bus hole is arranged between the 11# unit section and the main transformer hole 6; a12 # bus hole is arranged between the 12# unit section and the main transformer hole 6.
In order to meet the requirement of an exhaust structure, 8 main transformer exhaust branch holes 5 are of an urban door hole type, drainage ditches are arranged on one side of the lower part, the top of each main transformer exhaust branch hole is reinforced by a roof arch system anchor rod, two sides of each main transformer exhaust branch hole are reinforced by random anchor rods, and the periphery of each main transformer exhaust branch hole is subjected to net hanging and guniting treatment; the upper flat hole 2 for air exhaust is of an urban door opening type, a concrete pavement is paved at the lower part, drainage ditches are arranged at two sides, the periphery is treated by net hanging and slurry spraying, meanwhile, a mortar anchor rod is used for reinforcement treatment, and harmful gas in the vertical shaft 3 for air exhaust is led into the ground exhaust fan room 1.
The utility model provides an exhaust system of a large pumped storage power station, which consists of a ground exhaust fan room 1, an upper exhaust flat tunnel 2, an exhaust vertical shaft 3, a lower exhaust flat tunnel 4, a plurality of main transformer exhaust branch tunnels 5 and main transformer tunnels 6. The main transformer exhaust branch tunnel 5 collects and guides the circulating air in the main transformer tunnel 6 into the exhaust lower horizontal tunnel 4; one end of the air exhaust vertical shaft 3 is connected with the air exhaust upper flat tunnel 2, the other end is connected with the air exhaust lower flat tunnel 4, and the circulating air of the air exhaust lower flat tunnel 4 is exhausted to the air exhaust upper flat tunnel 2; the upper exhaust flat tunnel 2 is connected with the ground exhaust fan room 1, and finally the circulating air is led to the ground exhaust fan room 1 and leaves the factory side by side. The utility model effectively solves the air exhaust problem of the large pumped storage power station, reduces harmful gas in the large pumped storage power station and further ensures the personal safety of operation and maintenance personnel.
The utility model has the advantages of reasonable structural arrangement, economy, practicality, safety, reliability and convenient operation and maintenance, and is an exhaust system for a large pumped storage power station.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and improvements can be made without departing from the principle of the present invention, and such modifications and improvements should also be considered within the scope of the present invention.
Claims (8)
1. An exhaust system of a large pumped storage power station, comprising: the system comprises a ground exhaust fan room (1), an upper exhaust flat tunnel (2), an exhaust vertical shaft (3), a lower exhaust flat tunnel (4), a main transformer exhaust branch tunnel (5) and a main transformer tunnel (6);
-arranging said main substation cavern (6) at the downstream side of an underground main plant cavern; wherein the air exhaust end of the underground main plant hole is communicated with the air inlet end of the main transformer hole (6);
arranging the exhaust lower horizontal tunnel (4) at the downstream side of the main transformer tunnel (6); wherein, the main transformer tunnel (6) is provided with a plurality of air exhaust ends, and the air exhaust end of each main transformer tunnel (6) is communicated with the air inlet end of the air exhaust lower level tunnel (4) through one main transformer air exhaust branch tunnel (5);
the bottom air inlet end of the air exhaust vertical shaft (3) is communicated with the air exhaust end of the air exhaust lower horizontal tunnel (4); the top air exhaust end of the air exhaust vertical shaft (3) is communicated with the air inlet end of the air exhaust upper flat tunnel (2), and the air exhaust end of the air exhaust upper flat tunnel (2) extends to the ground and is communicated with the air inlet end of the ground air exhaust fan room (1) located on the ground.
2. The exhaust system of a large pumped-storage power station according to claim 1, characterized in that a plurality of units are arranged in the underground main plant cavity, and each unit is communicated to the main plant cavity (6) through a bus duct.
3. The exhaust system of large pumped-storage power station according to claim 1, characterized in that the bottom air intake end of the exhaust shaft (3) and the exhaust end of the exhaust lower horizontal tunnel (4) are at the same height.
4. The exhaust system of large pumped-storage power station according to claim 1, wherein the height of the bottom plate of the under-exhaust horizontal tunnel (4) is higher than that of the main transformer tunnel (6).
5. The exhaust system of large pumped-storage power station according to claim 1, characterized in that the upper exhaust level tunnel (2) comprises a horizontal section (2-1) and an inclined section (2-2); the high-level end of the inclined section (2-2) is communicated with one end of the horizontal section (2-1); the low-level end of the inclined section (2-2) is communicated with the top air exhaust end of the air exhaust vertical shaft (3).
6. The exhaust system of the large pumped-storage power station according to claim 1, wherein the exhaust shaft (3) is a hollow cylinder, the inner wall of the exhaust shaft is of a net-hanging guniting structure, and the outer wall of the exhaust shaft is reinforced by mortar anchor rods.
7. The exhaust system of a large pumped-storage power station according to claim 1, wherein the main transformer exhaust branch holes (5) are of an urban door opening type; the drainage ditch is arranged on one side of the lower portion of the roof arch system, the roof arch system anchor rods are used for reinforcement, the random anchor rods are used for reinforcement on two sides of the roof arch system anchor rods, and the hanging net guniting structure is adopted on the periphery of the roof arch system anchor rods.
8. The exhaust system of large pumped-storage power station according to claim 1, characterized in that the lower exhaust level tunnel (4) is of the type of an urban door opening; the lower part of the concrete pavement is paved, drainage ditches are arranged on two sides of the concrete pavement, a net hanging and mortar spraying structure is adopted around the concrete pavement, and a mortar anchor rod is used for reinforcement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220309107.4U CN216693884U (en) | 2022-02-16 | 2022-02-16 | Exhaust system of large-scale pumped storage power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220309107.4U CN216693884U (en) | 2022-02-16 | 2022-02-16 | Exhaust system of large-scale pumped storage power station |
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| Publication Number | Publication Date |
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| CN216693884U true CN216693884U (en) | 2022-06-07 |
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| CN202220309107.4U Active CN216693884U (en) | 2022-02-16 | 2022-02-16 | Exhaust system of large-scale pumped storage power station |
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- 2022-02-16 CN CN202220309107.4U patent/CN216693884U/en active Active
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