CN217630083U - Low-rise drainage gallery air exhaust structure in underground workshop - Google Patents
Low-rise drainage gallery air exhaust structure in underground workshop Download PDFInfo
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- CN217630083U CN217630083U CN202220315072.5U CN202220315072U CN217630083U CN 217630083 U CN217630083 U CN 217630083U CN 202220315072 U CN202220315072 U CN 202220315072U CN 217630083 U CN217630083 U CN 217630083U
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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 a low-rise drainage corridor exhaust structure in underground factory building, include: the drainage gallery air exhaust vertical shaft, the middle drainage gallery air exhaust branch hole, the low drainage gallery air exhaust branch hole, the middle drainage gallery, the low drainage gallery, the underground workshop gas auxiliary chamber air exhaust hole and the underground workshop main air exhaust channel. The air exhaust structure of the drainage gallery at the middle and low floors of the underground factory building, which is provided by the utility model, is clear and reasonable, economical and practical; the structure of the underground main plant of the large pumped storage power station is not changed, and only the arrangement of the air exhaust structure is changed, so that the air exhaust condition of the drainage gallery in the underground plant is greatly improved, the air exhaust problem of the air exhaust gallery in the middle and lower layers of the underground plant is effectively solved, the harmful gas of the drainage gallery in the middle and lower layers is reduced, and the personal safety of operation and maintenance personnel is further ensured.
Description
Technical Field
The utility model relates to an exhaust system, concretely relates to low-rise drainage gallery exhaust structure in underground factory building.
Background
The main electromechanical equipment of the pumped storage power station is usually located in an underground cavern with the burial depth of 200-300 m, and the underground cavern usually consists of a main plant cavern, a bus duct, a main transformer cavern, a tail gate cavern and other auxiliary caverns. The electromechanical equipment is arranged in an underground main plant hole, and the span of the underground main plant hole is generally 23-30 m. The drainage corridor is an important component in the system engineering of the underground plant of the pumped storage power station, is generally divided into an upper layer, a middle layer and a lower layer, and surrounds the periphery of the plant and the main transformer hole. Many components in water can generate chemical changes in a long-time closed space of the drainage gallery to generate flammable and explosive harmful gases, so that the ventilation effect of the drainage gallery of the underground workshop of the pumped storage power station has important significance on the operation of the power station, and the design and optimization of the exhaust structure of the underground workshop of the pumped storage power station are of great importance.
At present, the existing air supply system of a ventilation tunnel is adopted by wind for the construction of an upper drainage gallery, and the existing air supply system of a traffic tunnel or a factory excavated workshop is adopted by wind for middle and lower drainage galleries, so that the air supply efficiency is low, and harmful gas cannot be discharged in time.
SUMMERY OF THE UTILITY MODEL
Defect to prior art existence, the utility model provides a low-rise drainage corridor exhaust structure in underground factory building can effectively solve above-mentioned problem.
The utility model adopts the technical scheme as follows:
the utility model provides a low-rise drainage corridor exhaust structure in underground factory building, include: the drainage gallery air exhaust vertical shaft (1), the middle drainage gallery air exhaust branch hole (2), the low drainage gallery air exhaust branch hole (3), the middle drainage gallery (4), the low drainage gallery (5), the underground factory building gas auxiliary chamber air exhaust hole (6) and the underground factory building main air exhaust channel (7);
arranging the drainage gallery air exhaust vertical shaft (1) on one side of the middle drainage gallery (4) and the low drainage gallery (5); the middle drainage gallery (4) is communicated to the middle part of the drainage gallery air exhaust vertical shaft (1) through the middle drainage gallery air exhaust branch hole (2); the low-level drainage gallery (5) is communicated to the bottom of the drainage gallery air exhaust vertical shaft (1) through the low-level drainage gallery air exhaust branch hole (3);
the top of the drainage gallery air exhaust vertical shaft (1) is communicated to the main air exhaust channel (7) of the underground factory building through the air exhaust hole (6) of the underground factory building gas auxiliary chamber.
Preferably, the air supplementing end of the low-level drainage gallery (5) is communicated with an auxiliary chamber of the factory building; and the air supplementing end of the middle drainage gallery (4) is communicated with the traffic hole.
Preferably, the auxiliary chamber of the factory building comprises a construction branch hole, a tail water overhaul drainage gallery and a water collection well.
Preferably, the middle drainage gallery (4) and the low drainage gallery (5) are respectively provided with an induction fan.
Preferably, the middle drainage gallery air exhaust branch hole (2) and the low drainage gallery air exhaust branch hole (3) are both of a door hole type, a concrete pavement is laid on the lower portion of the middle drainage gallery air exhaust branch hole, and a drainage gradient of 1% is set.
Preferably, the drainage gallery air exhaust vertical shaft (1) is a hollow cylinder, the inner wall of the drainage gallery air exhaust vertical shaft is of a net hanging and concrete spraying structure, and the outer wall of the drainage gallery air exhaust vertical shaft is reinforced by a mortar anchor rod.
Preferably, the underground factory building gas auxiliary cavern exhaust tunnel (6) comprises a main transformer exhaust branch tunnel, a tail gate exhaust horizontal tunnel, a tail regulation ventilation tunnel and a high-pressure pipeline drainage gallery.
Preferably, the main air exhaust channel (7) of the underground powerhouse comprises an air exhaust lower flat tunnel and an air exhaust vertical shaft.
The utility model provides a low-rise drainage corridor air exhausting structure in underground factory building has following advantage:
the air exhaust structure of the drainage gallery at the middle and low floors of the underground factory building, which is provided by the utility model, is clear and reasonable, economical and practical; the underground main power house structure of the large pumped storage power station is not changed, and only the arrangement of the air exhaust structure is changed, so that the air exhaust condition of the drainage gallery in the underground power house is greatly improved, the air exhaust problem of the air exhaust gallery in the middle and lower layers of the underground power house is effectively solved, the harmful gas of the drainage galleries in the middle and lower layers is reduced, and the personal safety of operation and maintenance personnel is further ensured.
Drawings
FIG. 1 is a schematic view of the air exhaust structure of the drainage gallery in the lower floor of the underground powerhouse;
FIG. 2 is a schematic view of the vertical surface of the exhaust branch hole of the drainage gallery;
FIG. 3 is a schematic view of the vertical surface of the drainage gallery exhaust shaft of the present invention;
in the figure:
1-a drainage gallery air exhaust vertical shaft; 2-middle drainage gallery exhaust branch tunnel; 3-a low-level drainage gallery air exhaust branch hole; 4- -middle drainage gallery; 5- -lower drainage gallery; 6-underground factory building gas auxiliary chamber exhaust tunnel; 7- -main exhaust channel of underground workshop.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects of the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
As shown in fig. 1, the utility model provides a low-rise drainage gallery air exhausting structure in underground factory building, include: the drainage gallery air exhaust vertical shaft 1, the middle drainage gallery air exhaust branch hole 2, the low drainage gallery air exhaust branch hole 3, the middle drainage gallery 4, the low drainage gallery 5, the underground workshop gas auxiliary chamber air exhaust hole 6 and the underground workshop main air exhaust channel 7;
the middle drainage gallery 4 and the low drainage gallery 5 surround the periphery of the plant and the main transformer hole.
Arranging a drainage gallery air exhaust vertical shaft 1 at one side of the middle-layer drainage gallery 4 and the low-layer drainage gallery 5; the middle drainage gallery 4 is communicated to the middle part of the drainage gallery air exhaust vertical shaft 1 through the middle drainage gallery air exhaust branch hole 2; the low-level drainage gallery 5 is communicated to the bottom of the drainage gallery air exhaust vertical shaft 1 through the low-level drainage gallery air exhaust branch hole 3;
the top of the drainage gallery air exhaust vertical shaft 1 is communicated to a main air exhaust channel 7 of the underground powerhouse through an air exhaust hole 6 of an air auxiliary chamber of the underground powerhouse.
Wherein, the air supplementing end of the low-level drainage gallery 5 is communicated with a plant auxiliary chamber, and the plant auxiliary chamber comprises a construction branch hole, a tail water overhaul drainage gallery, a water collecting well and the like; the air supply end of the middle drainage gallery 4 is communicated with the traffic hole. And the middle drainage gallery 4 and the low drainage gallery 5 are respectively provided with an induction fan.
In the utility model, the middle drainage gallery air exhaust branch hole 2 and the low drainage gallery air exhaust branch hole 3 are both of a city door hole type, a concrete pavement is laid on the lower part, a 1% drainage gradient is set, and water in the middle drainage gallery air exhaust branch hole 2 can be drained into the middle drainage gallery 4; and discharging the water in the lower drainage gallery air exhaust branch hole 3 into the lower drainage gallery 5.
The utility model discloses in, drainage gallery air exhaust shaft 1 is hollow cylinder, and the inner wall adopts the hanging net to spout the concrete structure, and the outer wall adopts the mortar stock to consolidate.
The utility model discloses in, the gaseous affiliated cavern hole of airing exhaust 6 of underground factory building includes that the main change airs exhaust a hole, the tail floodgate air exhaust the flat hole, the tail transfers air vent and high-pressure pipeline drainage corridor etc. and air exhaust the shaft with drainage corridor and constitute air exhaust structure.
The utility model discloses in, underground factory building owner exhaust passage 7 constitutes underground factory building owner exhaust structure including the lower flat tunnel of airing exhaust and the shaft etc. of airing exhaust.
Therefore, the utility model provides a low floor drainage corridor air exhausting structure in underground factory building, well, low floor drainage corridor, respectively through well, low floor drainage corridor air exhaust a hole, communicate drainage corridor air exhaust shaft 1, drainage corridor air exhaust shaft 1 links to each other with the gaseous affiliated cavern air exhaust hole 6 of underground factory building, finally air exhaust with well, low floor drainage corridor and lead to underground factory building main exhaust passage 7 to discharge harmful gas outside the factory. The low-layer drainage gallery 5 is supplemented with air and introduced from auxiliary chambers of a workshop such as a construction branch hole, a tail water overhauling drainage gallery and a water collecting well, the middle-layer drainage gallery 4 is supplemented with air and introduced from a through hole, the low-layer and middle-layer drainage galleries are respectively provided with an induction fan, circulating air is formed in the galleries, a ventilation path of the middle-layer and low-layer drainage galleries is formed, and the safety of the middle-layer and low-layer drainage galleries of an underground workshop is guaranteed.
The utility model provides a low-rise drainage gallery air exhausting structure in underground factory building, drainage gallery air exhaust a hole and link to each other drainage gallery and drainage gallery air exhaust shaft, and drainage gallery air exhaust shaft 1 links to each other with the gaseous affiliated cavern air exhaust hole 6 of underground factory building, finally causes the circulated air to underground factory building main exhaust passage 7 to outside dispatching out harmful gas, in the guarantee underground factory building, the safety of low-rise drainage gallery.
Wherein, the drainage gallery comprises a middle drainage gallery 4 and a low drainage gallery 5 which surround the periphery of the factory building and the main transformer hole. The drainage gallery air exhaust branch hole comprises a middle drainage gallery air exhaust branch hole 2 and a low drainage gallery air exhaust branch hole 3. The air exhaust tunnel 6 of other subsidiary chambers of the underground powerhouse comprises a main exhaust branch tunnel, a tail gate exhaust horizontal tunnel, a tail adjusting ventilation tunnel, a high-pressure pipeline drainage gallery and the like, and forms an air exhaust structure with an air exhaust shaft of the drainage gallery. The main air exhaust channel 7 of the underground workshop comprises an air exhaust adit of the main workshop, a ventilation channel of the main workshop and the like, so that a main air exhaust structure of the underground workshop is formed.
Specifically, one end of the middle drainage gallery air exhaust branch hole 2 is connected with the middle drainage gallery 4, the other end is connected with the drainage gallery air exhaust vertical shaft 1, and the circulating air of the middle drainage gallery 4 is exhausted to the drainage gallery air exhaust vertical shaft 1; one end of the low-level drainage gallery air exhaust branch hole 3 is connected with the low-level drainage gallery 5, the other end is connected with the drainage gallery air exhaust vertical shaft 1, and the circulating air of the low-level drainage gallery 5 is exhausted to the drainage gallery air exhaust vertical shaft 1; the drainage gallery air exhaust vertical shaft 1 is connected with an underground factory building gas auxiliary cavern air exhaust hole 6, finally the drainage gallery air exhaust is led to a main air exhaust channel 7 of an underground factory building and is discharged outside the factory side by side; the problem of airing exhaust of the middle and low-level drainage galleries of the underground factory building is effectively solved, harmful gas of the middle and low-level drainage galleries is reduced, and personal safety of operation and maintenance personnel is further guaranteed.
The middle drainage gallery air exhaust branch hole 2 and the low drainage gallery air exhaust branch hole 3 are of a city door hole type, a concrete pavement is paved on the lower portion of the middle drainage gallery air exhaust branch hole, the periphery of the middle drainage gallery air exhaust branch hole is subjected to net hanging and mortar spraying treatment, the upper portion of the middle drainage gallery air exhaust branch hole is reinforced by mortar anchor rods, two sides of the middle drainage gallery air exhaust branch hole are reinforced by random mortar anchor rods, and the drainage gradient is 1%.
The drainage gallery air exhaust vertical shaft 1 is a hollow cylinder, the inner wall of the drainage gallery air exhaust vertical shaft is subjected to net hanging and slurry spraying treatment, and the outer wall of the drainage gallery air exhaust vertical shaft is reinforced by a mortar anchor rod; the whole civil structure is arranged and has good adaptability to equipment arrangement, and is economical and applicable.
The structure greatly reduces the excavation supporting difficulty and the engineering investment of the underground cavern group; the air exhaust structure of the drainage gallery at the middle and lower layers of the underground workshop is optimized, the structure is safe and reliable, and the operation and maintenance are convenient.
The following is further explained by taking a certain large pumped storage power station project adopting the technical scheme of the utility model as an example and combining the attached drawings:
certain large-scale pumped storage power station engineering according to the needs that the power plant factory building was aired exhaust, sets up well, low floor drainage corridor air exhausting structure, for the content that reduces harmful gas in the underground factory building drainage corridor, provides operation maintenance personnel's operational environment, has set up in the factory building the utility model discloses a low floor drainage corridor air exhausting structure in the underground factory building.
The plant is an underground plant, the excavation elevation of a top arch is 1008.50m, the excavation elevation of a bottom plate is 953.50, the height of the plant is 55.0m, the underground plant is composed of a 1# main plant, a 6# main plant, an installation field, a 7# main plant, a 12# main plant and a 2# main plant, the underground plant is arranged in a shape like a Chinese character 'yi', the total length of a grotto is 414.0m, the width of the grotto is 25.0m, and 10 300MW constant-speed reversible energy storage units and 2 300MW variable-speed reversible energy storage units are installed in the main plants; the main transformer holes are arranged on the downstream side of the main plant in parallel, the clear distance between the main transformer holes and the main plant is 40m, the main transformers, the SFCs and other equipment are arranged, and the excavation size of the main transformer holes is 450.5m multiplied by 21.0m multiplied by 22.5m; the drainage gallery is divided into a middle layer and a lower layer, and the models of the drainage gallery are 4m multiplied by 3m.
In order to meet the requirement of an exhaust structure, the drainage gallery is connected with an exhaust branch hole, the length of the exhaust branch hole is 24m, the exhaust branch hole is of an urban door opening type, a concrete pavement is laid on the lower portion of the exhaust branch hole, the periphery of the exhaust branch hole is treated by hanging nets and spraying mortar, the upper portion of the exhaust branch hole is reinforced by mortar anchor rods, two sides of the exhaust branch hole are reinforced by random mortar anchor rods, and the drainage gradient is 1%; the middle drainage gallery and the low drainage gallery are connected in series in the air exhaust shaft and are in a hollow cylindrical shape, the inner wall of the air exhaust shaft is treated by hanging net and spraying mortar, and the outer wall of the air exhaust shaft is reinforced by a mortar anchor rod; harmful gas is sent into the exhaust horizontal tunnel through the tail gate exhaust vertical shaft and finally exhausted out of the factory.
To sum up, the utility model discloses a middle and lower drainage gallery air exhaust structure in an underground workshop, wherein one end of a middle drainage gallery air exhaust branch hole 2 is connected with a middle drainage gallery 4, the other end is connected with a drainage gallery air exhaust shaft 1, and circulating air of the middle drainage gallery 4 is exhausted to the drainage gallery air exhaust shaft 1; one end of the low-level drainage gallery exhaust branch hole is connected with the low-level drainage gallery 5, the other end of the low-level drainage gallery exhaust branch hole is connected with the drainage gallery exhaust shaft 1, and circulating air of the low-level drainage gallery 5 is exhausted to the drainage gallery exhaust shaft 1; the drainage gallery air exhaust vertical shaft 1 is connected with an air exhaust hole 6 of an underground plant gas auxiliary chamber, and finally, circulating air is led to a main air exhaust channel 7 of an underground plant and leaves the factory side by side. The utility model discloses effectively solved in the underground factory building, the air exhaust problem of low floor air exhaust gallery, reduced the harmful gas of middle and low floor drainage gallery, made operation maintenance personnel's personal safety further ensured.
The utility model relates to a arrange reasonable, economical and practical, safe and reliable, make things convenient for operation and maintenance's pumping storage underground factory building in, low floor drainage corridor air exhausting structure.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be viewed as the protection scope of the present invention.
Claims (7)
1. The utility model provides a low-rise drainage gallery air exhausting structure in underground factory building which characterized in that includes: the drainage gallery air exhaust vertical shaft (1), the middle drainage gallery air exhaust branch hole (2), the low drainage gallery air exhaust branch hole (3), the middle drainage gallery (4), the low drainage gallery (5), the underground workshop gas auxiliary chamber air exhaust hole (6) and the underground workshop main air exhaust channel (7);
arranging the drainage gallery air exhaust vertical shaft (1) at one side of the middle-layer drainage gallery (4) and the low-layer drainage gallery (5); the middle drainage gallery (4) is communicated to the middle part of the drainage gallery air exhaust vertical shaft (1) through the middle drainage gallery air exhaust branch hole (2); the low-level drainage gallery (5) is communicated to the bottom of the drainage gallery air exhaust vertical shaft (1) through the low-level drainage gallery air exhaust branch hole (3);
the top of the drainage gallery air exhaust vertical shaft (1) is communicated to a main air exhaust channel (7) of the underground workshop through an air exhaust hole (6) of a gas auxiliary chamber of the underground workshop;
wherein, the air supplementing end of the low-level drainage gallery (5) is communicated with an auxiliary chamber of the factory building; and the air supplementing end of the middle drainage gallery (4) is communicated with the traffic hole.
2. The ventilation structure of the low-rise drainage gallery in an underground factory building as claimed in claim 1, wherein the auxiliary chambers of the factory building include construction branch holes, tail water inspection drainage galleries and water collection wells.
3. The air exhaust structure of the low-rise drainage gallery in the underground powerhouse according to claim 1, wherein the middle-rise drainage gallery (4) and the low-rise drainage gallery (5) are respectively provided with an induction fan.
4. The exhaust structure of the drainage gallery in the lower floor of the underground factory building as claimed in claim 1, wherein the exhaust branch holes (2) of the drainage gallery in the middle floor and the exhaust branch holes (3) of the drainage gallery in the lower floor are both of a tunnel type, and a concrete pavement is laid on the lower part of the tunnel type, and a drainage slope of 1% is set.
5. The air exhaust structure of the drainage gallery in the low-rise building in the underground powerhouse according to claim 1, wherein the air exhaust shaft (1) of the drainage gallery is a hollow cylinder, the inner wall of the air exhaust shaft is of a net-hanging concrete structure, and the outer wall of the air exhaust shaft is reinforced by mortar anchor rods.
6. The low-rise drainage gallery air exhausting structure in an underground powerhouse according to claim 1, wherein the gas auxiliary cavern air exhausting hole (6) in the underground powerhouse comprises a main transformer air exhausting branch hole, a tail gate air exhausting horizontal hole, a tail air regulating ventilation hole and a high-pressure pipeline drainage gallery.
7. The low-rise drainage gallery air exhaust structure in an underground powerhouse according to claim 1, wherein the main air exhaust channel (7) of the underground powerhouse comprises an air exhaust lower horizontal tunnel and an air exhaust vertical shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220315072.5U CN217630083U (en) | 2022-02-16 | 2022-02-16 | Low-rise drainage gallery air exhaust structure in underground workshop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220315072.5U CN217630083U (en) | 2022-02-16 | 2022-02-16 | Low-rise drainage gallery air exhaust structure in underground workshop |
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| Publication Number | Publication Date |
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| CN217630083U true CN217630083U (en) | 2022-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220315072.5U Active CN217630083U (en) | 2022-02-16 | 2022-02-16 | Low-rise drainage gallery air exhaust structure in underground workshop |
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| CN (1) | CN217630083U (en) |
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- 2022-02-16 CN CN202220315072.5U patent/CN217630083U/en active Active
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