CN215715536U - Buoyancy type escape device for underground powerhouse of hydropower station - Google Patents
Buoyancy type escape device for underground powerhouse of hydropower station Download PDFInfo
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- CN215715536U CN215715536U CN202122316569.7U CN202122316569U CN215715536U CN 215715536 U CN215715536 U CN 215715536U CN 202122316569 U CN202122316569 U CN 202122316569U CN 215715536 U CN215715536 U CN 215715536U
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Abstract
The utility model relates to a buoyancy type escape device for an underground powerhouse of a hydropower station. The technical scheme adopted by the utility model is as follows: a buoyancy type escape device for an underground powerhouse of a hydropower station is arranged in a smoke exhaust shaft of the hydropower station, the lower end of the smoke exhaust shaft is communicated with the underground powerhouse through a bottom passage, and the upper end of the smoke exhaust shaft extends to the ground through a top passage; the escape device comprises a track and an escape cabin capable of floating upwards along with the water level, wherein the track is vertically fixed on the inner wall of the smoke exhaust shaft and is arranged in a through length mode, and the escape cabin can be mounted on the track in a mode of moving upwards and downwards along the track. The utility model can provide a reliable escape device for timely and safely evacuating underground workshop personnel when a water-flooded workshop occurs, the device has simple structure, does not need external power, and the escape cabin can automatically float by using the buoyancy of water when a water-flooded workshop accident occurs, thereby avoiding the personnel being submerged in water and bringing great convenience to subsequent rescue.
Description
Technical Field
The utility model relates to a buoyancy type escape device for an underground powerhouse of a hydropower station. Is suitable for the technical field of water and electricity hydraulic engineering.
Background
A hydropower station is a comprehensive engineering facility for converting water energy into electric energy, and generally comprises a dam, a reservoir, a water diversion system, an underground factory building, power generation equipment, a tail water system and the like. The water diversion system guides water of the upstream reservoir to the underground powerhouse to push the water turbine generator set to rotate, so that potential energy generated by the difference of the water level elevations of the upstream reservoir and the downstream riverway is converted into electric energy, and water flowing through the water turbine generator set is discharged to the downstream riverway through the tail water system (see attached figure 1).
For a hydropower station with a medium-high water head, particularly a pumped storage power station, a power generation plant usually adopts an underground plant type, namely the elevation of the power generation plant is lower than the water level of a downstream river. For pumped storage power stations, the underground power plant is generally 30-80 m lower than the downstream river water level. Therefore, for the hydropower station of the underground powerhouse, if the water diversion system or the tail water system has an accident, and the water body flows into the underground powerhouse, the accident of flooding the powerhouse can be caused.
In recent years, factory accidents caused by flooding at home and abroad often occur, and great influence is caused on the safety of personnel and property. The passages between the underground powerhouse and the outside are often long, and people often have no time to escape when extreme water flooding powerhouse accidents occur. In order to avoid the injury of personnel caused by flooding the workshop, the existing hydropower station of the underground workshop is generally provided with a refuge cabin, namely, after an accident occurs, the personnel can enter the refuge cabin to refuge and wait for rescue. However, most of the existing refuge cabins are fixed, and the refuge cabins are still in underground plants after water-flooded plant accidents occur, so that people are trapped in the underground plants; because the underground factory building and the refuge bin are submerged by water, external rescue needs to be performed by first performing drainage operation and then performing rescue, the time is usually long, and great influence is brought to the timeliness of rescue work.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: aiming at the existing problems, the buoyancy type escape device for the underground powerhouse of the hydropower station is provided.
The technical scheme adopted by the utility model is as follows: the utility model provides a power station underground powerhouse buoyancy formula escape device which characterized in that: the escape device is arranged in a smoke exhaust shaft of a hydropower station, the lower end of the smoke exhaust shaft is communicated with an underground powerhouse through a bottom passage, and the upper end of the smoke exhaust shaft extends to the ground through a top passage;
the escape device comprises a track and an escape cabin capable of floating upwards along with the water level, wherein the track is vertically fixed on the inner wall of the smoke exhaust shaft and is arranged in a through length mode, and the escape cabin can be mounted on the track in a mode of moving upwards and downwards along the track. Thereby ensuring the floating stability of the escape compartment.
The escape cabin is parked at the lower end of the smoke exhaust vertical shaft in a normal state; in order not to influence the ordinary smoke discharge, the inner wall of the smoke discharge vertical shaft is provided with a local smoke discharge groove which extends from the bottom channel below to the upper part of the escape cabin in the normal parking state.
The escape compartment top is fixed with rings I, the shaft top of discharging fume is fixed with rings II, can link to each other through the hoist that lifts the escape compartment between rings II and rings I.
And a top sealing door is arranged at the top of the escape compartment.
The escape cabin is divided into a plurality of layers of cabins which are distributed up and down, the side wall of the cabin at the lowest layer is provided with a man-entering sealing door, the cabins are communicated through an internal sealing door, and an internal ladder corresponding to the internal sealing door is arranged in the cabin.
The escape cabin is internally provided with a plurality of ventilating pipes corresponding to the cabins, the upper ends of the ventilating pipes are exposed out of the top of the escape cabin, and the lower ends of the ventilating pipes extend to the corresponding cabins in the escape cabin, so that the circulation of internal air can be ensured.
The utility model has the beneficial effects that: the utility model can provide a reliable escape device for timely and safely evacuating underground workshop personnel when a water-flooded workshop happens, the device has simple structure, does not need external power, and the escape cabin can automatically float by using the buoyancy of water when a water-flooded workshop accident happens, thereby avoiding the personnel being submerged in water and bringing great convenience to subsequent rescue; and the escape compartment is provided with the vent hole and is always communicated with the atmosphere, and the oxygen bottle is not required to be prepared in the compartment. The escape compartment is arranged in the existing smoke exhaust vertical shaft, the structure is simple, the cost is lower, and the function of the smoke exhaust vertical shaft is basically not influenced by matching with the local smoke exhaust groove. The escape capsule is arranged on the track and can only move up and down, so that the floating stability of the escape capsule is ensured, and the safety of the floating process is ensured.
Drawings
Fig. 1 is a schematic diagram of a typical layout of a hydroelectric power plant.
Fig. 2 is a schematic structural diagram of the escape device in the embodiment.
Fig. 3 is a sectional view taken along line a-a of fig. 2.
In the figure: 1. an escape bin; 2. a person entering sealing door; 3. climbing a ladder; 4. an inner sealing door; 5. a top sealing door; 6. a breather pipe; 7. a hoisting ring I; 8. a guide rail; 9. embedding parts; 10. a smoke exhaust shaft; 11. entering rock anchor bars; 12. a local smoke exhaust groove; 13. and a hoisting ring II.
Detailed Description
The embodiment is a buoyancy type escape device for an underground powerhouse of a hydropower station, which is arranged in a smoke exhaust shaft 10 of the hydropower station, wherein the lower end of the smoke exhaust shaft 10 is communicated with the underground powerhouse through a bottom passage, and the upper end of the smoke exhaust shaft 10 extends to the external ground through a top passage.
The escape device comprises a track and an escape cabin which can float up along with the water level, wherein the track is vertically fixed on the inner wall of the smoke exhaust shaft 10 through an embedded part 9 and is arranged along the length of the smoke exhaust shaft 10; the escape compartment can be arranged on the track in a way of moving up and down along the track.
The cabin of fleing in this embodiment is separated into upper, middle and lower three-layer cabin, is equipped with into people's sealing door 2 on the lateral wall in lower floor's cabin, through inside sealing door 4 intercommunication between the upper and lower cabin, and the cabin top of fleing is equipped with top sealing door 5, is equipped with the inside cat ladder 3 that corresponds with inside sealing door 4 or top sealing door 5 in the cabin.
In this embodiment, a plurality of vent pipes 6 are arranged in the escape compartment corresponding to each compartment, the upper ends of the vent pipes 6 are exposed out of the top of the escape compartment, the lower ends of the vent pipes 6 extend to the corresponding compartments in the escape compartment, and the vent holes of each layer are independently arranged to ensure the circulation of air in each compartment.
In the embodiment, a lifting ring I7 is fixed at the top of the escape compartment, a lifting ring II 13 is fixed at the top of the smoke exhaust shaft 10 through a rock entering anchor bar 11, and the lifting ring II 13 is connected with the lifting ring I7 through a lifting appliance capable of lifting the escape compartment.
In the embodiment, the escape compartment is parked at the lower end of the smoke exhaust shaft 10 in a normal state, so that personnel in an underground factory can enter the escape compartment conveniently; when the water level in the underground powerhouse rises and enters the smoke exhaust shaft 10, the escape compartment rises along the rail under the action of the water level along with the rise of the water level in the smoke exhaust shaft 10.
In order to ensure the smoothness of the channel of the smoke exhaust shaft 10 at ordinary times, a local smoke exhaust groove 12 is dug on the side wall of the smoke exhaust shaft 10, and the local smoke exhaust groove 12 extends from the bottom channel below to the top surface of the escape compartment in the normal parking state.
In the embodiment, an underground plant is positioned in a cave, 107.0m of a high-rise building at the bottom of the underground plant is positioned below an upper reservoir water level 675m and a lower reservoir water level 208, when a water diversion system or a tail water system has an accident, for example, a joint of the underground plant and the water diversion system or the tail water system is broken, water in the water diversion system or the tail water system enters the underground plant, the water level of the underground plant is gradually increased, at the moment, personnel in the plant are rapidly evacuated into an escape capsule through a 102.0m high-rise channel at the bottom of the underground plant, the personnel entering the underground plant firstly enter the escape capsule from an inner ladder stand 3 to an upper-rise cabin, and after the personnel in the upper-rise cabin are full, an inner sealing door 4 between the upper layer and the middle layer is closed; similarly, after the middle deck cabin is full, the inner sealing door 4 between the middle and lower decks is closed; and after the lower cabin is full of people, the side entrance sealing door 2 is closed. When the water in the factory building submerges the high-rise escape compartment, the escape compartment automatically rises along with the rise of the water level under the action of buoyancy, and the guide rail 8 is arranged, so that the floating stability of the escape compartment is ensured. When the water level in the underground factory building rises to a certain stable water level, the escape capsule stops rising and floats above the water surface of the smoke exhaust shaft 10, at the moment, the top sealing door 5 can be opened by internal personnel, external rescue personnel can upwards rescue the personnel in the capsule or take other measures through tools such as cables and the like from the top channel of 218.7 high-rise of the smoke exhaust shaft 10, for example, the escape capsule is connected with the top fixed lifting ring I7 of the escape capsule through a lifting tool, so that the escape capsule is lifted upwards, and finally the personnel in the escape capsule are evacuated outwards through the top channel of the smoke exhaust shaft 10.
The above-mentioned embodiments are merely illustrative of the inventive concept and are not intended to limit the scope of the utility model, which is defined by the claims and the insubstantial modifications of the inventive concept can be made without departing from the scope of the utility model.
Claims (6)
1. The utility model provides a power station underground powerhouse buoyancy formula escape device which characterized in that: the escape device is arranged in a smoke exhaust shaft of a hydropower station, the lower end of the smoke exhaust shaft is communicated with an underground powerhouse through a bottom passage, and the upper end of the smoke exhaust shaft extends to the ground through a top passage;
the escape device comprises a track and an escape cabin capable of floating upwards along with the water level, wherein the track is vertically fixed on the inner wall of the smoke exhaust shaft and is arranged in a through length mode, and the escape cabin can be mounted on the track in a mode of moving upwards and downwards along the track.
2. The buoyancy type escape device for the underground powerhouse of the hydropower station according to claim 1, which is characterized in that: the escape cabin is parked at the lower end of the smoke exhaust vertical shaft in a normal state; and a local smoke exhaust groove extending from the bottom passage below to the upper part of the escape compartment in the normal parking state is formed in the inner wall of the smoke exhaust vertical shaft.
3. The buoyancy type escape device for the underground powerhouse of the hydropower station according to claim 1, which is characterized in that: the escape compartment top is fixed with rings I, the shaft top of discharging fume is fixed with rings II, can link to each other through the hoist that lifts the escape compartment between rings II and rings I.
4. The buoyancy type escape device for the hydropower station underground powerhouse according to claim 1 or 3, which is characterized in that: and a top sealing door is arranged at the top of the escape compartment.
5. The buoyancy type escape device for the underground powerhouse of the hydropower station according to claim 1, which is characterized in that: the escape cabin is divided into a plurality of layers of cabins which are distributed up and down, the side wall of the cabin at the lowest layer is provided with a man-entering sealing door, the cabins are communicated through an internal sealing door, and an internal ladder corresponding to the internal sealing door is arranged in the cabin.
6. The buoyancy type escape device for the underground powerhouse of the hydropower station according to claim 5, wherein: a plurality of vent pipes are arranged in the escape cabin corresponding to each cabin, the upper ends of the vent pipes are exposed out of the top of the escape cabin, and the lower ends of the vent pipes extend to the corresponding cabins in the escape cabin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122316569.7U CN215715536U (en) | 2021-09-24 | 2021-09-24 | Buoyancy type escape device for underground powerhouse of hydropower station |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122316569.7U CN215715536U (en) | 2021-09-24 | 2021-09-24 | Buoyancy type escape device for underground powerhouse of hydropower station |
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| CN215715536U true CN215715536U (en) | 2022-02-01 |
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| CN202122316569.7U Active CN215715536U (en) | 2021-09-24 | 2021-09-24 | Buoyancy type escape device for underground powerhouse of hydropower station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114712738A (en) * | 2022-03-10 | 2022-07-08 | 武汉理工大学 | Emergency escape structure and escape method for marine underground space |
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2021
- 2021-09-24 CN CN202122316569.7U patent/CN215715536U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114712738A (en) * | 2022-03-10 | 2022-07-08 | 武汉理工大学 | Emergency escape structure and escape method for marine underground space |
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