CN113955607A - Box type vertical escape method for underground nuclear power plant - Google Patents
Box type vertical escape method for underground nuclear power plant Download PDFInfo
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- CN113955607A CN113955607A CN202111113199.5A CN202111113199A CN113955607A CN 113955607 A CN113955607 A CN 113955607A CN 202111113199 A CN202111113199 A CN 202111113199A CN 113955607 A CN113955607 A CN 113955607A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/0005—Constructional features of hoistways
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/0065—Roping
- B66B11/008—Roping with hoisting rope or cable operated by frictional engagement with a winding drum or sheave
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B17/00—Hoistway equipment
- B66B17/12—Counterpoises
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21D—NUCLEAR POWER PLANT
- G21D1/00—Details of nuclear power plant
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21D—NUCLEAR POWER PLANT
- G21D1/00—Details of nuclear power plant
- G21D1/02—Arrangements of auxiliary equipment
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Structural Engineering (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
The invention provides a box type vertical escape method for an underground nuclear power plant, which comprises the following steps: the personnel lift car downwards passes through the shielding isolation area under the traction of the traction mechanism to enter the interior of the personnel dense workshop; the escape personnel enter the personnel lift car; the personnel lift car upwards passes through the shielding isolation area under the traction of the traction mechanism; the personnel lift car ascends to the highest position of the escape shaft under the traction of the traction mechanism, and the escape personnel are conveyed upwards to a ground safety area. The escape personnel can supply materials through the radiation-proof medicines and the fire-fighting articles placed in the personnel lift car; when the underground nuclear power plant power supply works normally, the traction mechanism is driven through the power mechanism, and when the underground nuclear power plant power supply fails, the traction mechanism is driven through the counterweight car. The escape method sets safe and quick escape paths aiming at the accident situations with or without power supplies, reduces the escape time and improves the escape probability under the accident situations.
Description
Technical Field
The invention belongs to the technical field of escape methods, and relates to an escape method for an underground nuclear power plant.
Background
An underground nuclear power plant is a power plant which is used for producing electric energy by using nuclear energy and is characterized in that a nuclear reactor, a reactor coolant system and a main auxiliary system of a nuclear island are arranged underground, and a part of auxiliary system of the nuclear island, a steam turbine generator system and other auxiliary systems are arranged underground or on the ground. In the underground nuclear power plant, nuclear facilities such as reactors are arranged in underground rock bodies or stable mountain bodies, so that large-scale diffusion of radioactive substances under serious accidents is prevented. The safety of the underground nuclear power plant is high, the public safety can be protected particularly under extreme accidents, and the acceptance of the public to nuclear power is greatly improved. In addition, the site selection of the underground nuclear power station is more flexible, and the land resources can be more effectively utilized. Above the underground cavern of an underground nuclear power plant there is usually a shaft for construction, which is usually abandoned after the formal operation of the plant and is not used efficiently.
When the nuclear island part of the underground nuclear power plant is positioned below the ground level, the covering layer above the nuclear island is usually more than 200m, the number of traffic tunnels is large, the evacuation and rescue line is long, and the evacuation difficulty in the site is large when accidents such as nuclear accidents, fire disasters and the like occur. And in case of accident, power failure is likely to happen in the factory, and the conventional escape method relying only on electric energy is likely to fail.
Disclosure of Invention
In order to solve the problems in the background art, the invention provides a box type vertical escape method for an underground nuclear power plant.
The escape method comprises the following steps:
step one, a personnel lift car downwards passes through a shielding isolation area under the traction of a traction mechanism to enter the interior of a personnel intensive factory building;
step two, the escape personnel enter the personnel lift car;
thirdly, the personnel lift car upwards passes through the shielding isolation area under the traction of the traction mechanism;
and step four, the personnel lift car ascends to the highest position of the escape shaft under the traction of the traction mechanism, and the escape personnel are conveyed upwards to a ground safety area.
Furthermore, in the second step, the escape personnel can supply materials through the radiation-proof medicines and the fire-fighting articles placed in the personnel lift car.
Further, in the first step, the second step and the fourth step, when the power supply of the underground nuclear power plant normally works, the traction mechanism is driven through the power mechanism, and when the power supply of the underground nuclear power plant fails, the traction mechanism is driven through the counterweight car.
Furthermore, when the traction mechanism is driven by the power mechanism, when the personnel lift car passes through the shielding isolation area, the inner shielding door and the outer shielding door of the shielding isolation area are not opened simultaneously; when the traction mechanism is driven by the counterweight cage, when the personnel cage passes through the shielding isolation area, the inner shielding door and the outer shielding door of the shielding isolation area are opened simultaneously.
Underground nuclear power plant is when normal operating, and interior outer shield door all is in the closed condition, starts when the emergence accident, and at power normal operating, its switching process as follows: when the personnel lift car needs to enter a personnel intensive factory building, firstly, the outer shielding door is opened, the personnel lift car descends to a shielding isolation area between the inner shielding door and the outer shielding door, then, the outer shielding door is closed, the inner shielding door is opened, and after the personnel lift car enters the personnel intensive factory building, the inner shielding door is closed; when personnel's car carried the personnel of fleing and need returned, at first opened the internal shield door, personnel's car got into the isolation region, closed the internal shield door, and personnel's car and the personnel of fleing carry out radioactive substance's cleaing away in the shielding isolation region, then open the external shield door, and personnel's car and the personnel of fleing leave the shielding isolation region, close the external shield door at last, but above step maximization ensures personnel's safety, effectively prevents revealing of radioactive substance. When the power fails, the internal and external shielding doors are opened simultaneously, the personnel car quickly enters the intensive workshop of the personnel, the internal and external shielding doors are closed simultaneously, when the personnel car carries the escape personnel and needs to return, the internal and external shielding doors are opened simultaneously, the personnel car quickly leaves the shielding isolation area upwards, and the internal and external shielding doors are closed immediately. Sealing structures are arranged among the inner shielding door, the outer shielding door and the traction mechanism, and radioactive substances cannot be leaked outdoors when the personnel lift car enters a dense workshop of personnel.
Furthermore, when the traction mechanism is driven by the power mechanism, and the personnel car passes through the shielding isolation area, the escape personnel can clear the radioactive substances on the personnel car through the automatic radioactive substance cleaning device in the shielding isolation area.
Furthermore, the counterweight car utilizes a water replenishing tank and a water injection mechanism to replenish water through a water injection port at the top of the counterweight car to increase the counterweight, and the counterweight car drains water through a water outlet at the bottom of the counterweight car to reduce the counterweight; the counterweight cage is buffered by a buffer zone at the bottom of the counterweight shaft.
The water discharged by the counterweight cars into the buffer zone may be pumped to an associated cooling system for replenishing the cooling water. When the underground nuclear power plant urgently needs cooling, water in the water replenishing tank can be directly discharged into the buffer area through the water injection mechanism.
Furthermore, when the counterweight car is used for traction, the damping braking mechanism is arranged on the traction mechanism to enable the personnel car to stably run and land.
Compared with the prior art, the box type vertical escape method provided by the invention can be independent of an external power supply, and escape personnel can safely and orderly evacuate when the external power supply fails; the escape personnel can effectively reduce the leakage probability of radioactive substances through the steps of multiple shielding doors, and when the radioactive substances are released, an isolation room is arranged between the inner shielding door and the outer shielding door, so that the gaseous radioactive substances in the escape personnel can be prevented from being released to enter the vertical shaft, and the safety of the escape personnel is protected; meanwhile, the escape personnel can clear the radioactive substances on the body through the automatic radioactive substance cleaning device in the shielding isolation area, so that the safety of the human body is protected; the escape personnel can supply materials through the radiation-proof medicines and the fire-fighting articles placed in the personnel lift car, so that the escape success rate is guaranteed; the personnel car can directly enter the workshop to transport escape personnel under the accident condition, so that the escape time is shortened, and the escape probability under the accident condition is improved.
The escape method provided by the invention aims at the accident condition of existence of a power supply, and safe and quick escape paths are arranged under the condition of ensuring that radioactive substances are not leaked, so that the safe escape probability of personnel in a field and the probability of successful implementation of off-site rescue in the accident of an underground nuclear power station are improved to the maximum extent.
Drawings
Fig. 1 is a schematic plan view of the box-type vertical escape system when not in operation.
Fig. 2 is a schematic plane structure diagram of the box type vertical escape system after a personnel cage enters a personnel dense factory building.
Fig. 3 is a schematic plane structure diagram of a personnel cage of the box type vertical escape system at the highest position of an escape shaft.
Fig. 4 is an enlarged view of a portion a in fig. 2.
Wherein: 1-factory building; 1.1-dense factory building; 1.2-unmanned factory building; 2-shielding isolation region; 2.1-inner shield door; 2.2-outer shield door; 3-a personnel car; 4-a traction mechanism; 5-a power mechanism; 6-water replenishing tank; 7-a water injection mechanism; 8-a water pump; 9-a buffer zone; 10.1-escape shaft; 10.2-counterweight shaft; 11-a counterweight car; 12-damped braking mechanism.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings, but the embodiments are not limited to the invention, and the advantages of the invention will be understood more clearly by the description. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the present invention are to be considered within the scope of the invention. The positional relationships described in the embodiments are all the same as those shown in the drawings, and other portions not described in detail in the embodiments are all the related art.
As shown in fig. 1, the plant 1 of the underground nuclear power plant is arranged at the bottom of the ground, the plant 1 comprises a dense personnel plant 1.1 and an unmanned plant 1.2, and because of construction requirements, construction vertical shafts which are directly communicated with the ground are arranged above the dense personnel plant 1.1 and the unmanned plant 1.2, and the construction vertical shafts can be utilized as an installation space of a box type vertical escape system. The construction shaft above the personnel dense factory building 1.1 can be used as an escape shaft 10.1, and the construction shaft above the unmanned factory building 1.2 can be used as a counterweight shaft 10.2.
The respective components and mechanisms of the box-type vertical escape system will be described below.
As shown in fig. 1, when the box-type vertical escape system is not in operation, the shielded isolation area 2 is located in the escape shaft 10.1 above the intensive personnel factory 1.1, and the shielded isolation area 2 is internally provided with an automatic radioactive substance cleaning device. Specifically, the shielding isolation area 2 is composed of an inner shielding door 2.1, an outer shielding door 2.2 and a side wall of an escape vertical shaft 10.1, the inner shielding door 2.1 and the outer shielding door 2.2 can be opened and closed in the horizontal direction, the inner shielding door 2.1 is arranged at the top of the intensive personnel workshop 1.1, and the outer shielding door 2.2 is arranged above the inner shielding door 2.1. A personnel car 3 for carrying escape personnel is arranged above the shielding isolation area 2, and the top of the personnel car 3 is connected with a traction mechanism 4. The power mechanism 5 is arranged on the ground, the counterweight car 11 is arranged in the counterweight shaft 10.2, and the personnel car 3 is connected with the power mechanism 5 or the counterweight car 11 through the traction mechanism 4. Sealing structures are arranged among the inner shielding door 2.1, the outer shielding door 2.2 and the traction mechanism 4, and radioactive substances cannot be leaked outdoors when the personnel lift car 3 enters the intensive personnel workshop 1.2.
As shown in fig. 1 to 4, in the present embodiment, a damping brake mechanism 12 is provided on the traction mechanism 4 between the counterweight car 11 and the passenger car 3, and the damping brake mechanism 12 is also provided on the ground; a water replenishing tank 6 is further arranged on the periphery of the top of the counterweight shaft 10.2, a water injection mechanism 7 is arranged on the side face of the water replenishing tank 6, and a water injection port which can be communicated with the water injection mechanism 7 is arranged on the top of the counterweight cage 11, as shown in fig. 4 specifically; in addition, a water outlet is formed in the bottom of the counterweight car 11, the counterweight of the counterweight car 11 can be reduced when needed, a buffer area 9 is formed in the bottom of the counterweight shaft 10.2 and used for collecting water discharged by the counterweight car 11, a water pumping pipeline is arranged on the side face of the counterweight shaft 10.2, a water pump 8 is mounted on the water pumping pipeline, and the water discharged into the buffer area 9 can be connected to a related cooling system through the water pump 8 to supplement cooling water; when the underground nuclear power plant needs cooling urgently, the water in the water replenishing tank 6 can also be directly discharged into the buffer zone 9 through the water injection mechanism 7.
The escape method will be described in detail with reference to the box-type vertical escape system.
As shown in fig. 2 and 3, when an accident occurs in an underground nuclear power plant, an external power supply or a standby power supply normally works, and people need to evacuate and escape, the personnel lift car 3 is connected with a power mechanism 5 through a traction mechanism 4. The operation process of the box type vertical escape system is as follows: the outer shielding door 2.2 is opened, the personnel cage 3 in the escape shaft 10.1 descends to the shielding isolation area 2 between the inner shielding door 2.1 and the outer shielding door 2.2 through the connected traction mechanism 4 under the action of the power mechanism 5, then the outer shielding door 2.2 is closed, the inner shielding door 2.1 is opened, the personnel cage 3 continues to descend to enter the personnel intensive workshop 1.2, and the inner shielding door 2.1 is closed; when an escape person enters a person car 3 and the person car 3 carries the escape person to return, firstly, an inner shielding door 2.1 is opened, the person car 3 ascends through a connected traction mechanism 4 under the action of a power mechanism 5 to enter a shielding isolation region 2, the inner shielding door 2.1 is closed, the person car 3 and the escape person carry out radioactive substance removal in the isolation region, then, an outer shielding door 2.2 is opened, the person car 3 carrying the escape person continuously leaves the shielding isolation region, and finally, the outer shielding door 2.2 is closed, so that the safety of the person can be maximally ensured, and the leakage of radioactive substances is effectively prevented; and finally, the personnel lift car 3 carrying the escape personnel rises to the highest point of the escape vertical shaft 10.1 through the connected traction mechanism 4 under the action of the power mechanism 5, so that the escape personnel can escape to the ground. Through the circulation of the process, the escape personnel can be continuously conveyed to a safe area on the ground.
As shown in fig. 2, 3 and 4, when an accident occurs in an underground nuclear power plant, an external power supply or a standby power supply fails, and people need to evacuate and escape, the personnel lift car 3 is connected with a counterweight lift car 11 through a traction mechanism 4, and a damping brake mechanism 12 is further arranged on the traction mechanism 4. The operation process of the box type vertical escape system is as follows: the counter weight lift car 11 discharges water outwards, simultaneously the inner shielding door 2.1 and the outer shielding door 2.2 are opened simultaneously, when the water in the counter weight lift car 11 is discharged to a certain volume, the personnel lift car 3 in the escape shaft 10.1 descends downwards under the action of gravity through the connected traction mechanism 4, the personnel lift car 3 stably descends to a dense personnel workshop 1.1 under the action of the damping brake mechanism 12, the escape personnel enters the personnel lift car 3, when the personnel lift car 3 carries the escape personnel to return, as shown in figure 4, the water supplementing tank 6 is connected with a water filling port at the top of the counter weight lift car 11 through the water filling mechanism 7, water is filled into the counter weight lift car 11, when the water volume exceeds a certain volume, the counter weight lift car 11 moves downwards in the counter weight shaft 10.2, the personnel lift car 3 moves upwards through the connected traction mechanism 4, the inner shielding door 2.1 and the outer shielding door 2.2 are opened simultaneously, when the speed reaches a certain value, the damping brake mechanism 12 controls the descending speed of the counterweight car 11 through damping, and meanwhile, the buffer area 9 can buffer the counterweight car 11, so that the personnel car 3 can stably reach the highest position of the escape shaft 10.1, and the escape personnel can escape to the ground. Through the circulation of the process, the escape personnel can be continuously conveyed to a safe area on the ground.
The bottom of the counterweight cage 11 is provided with a water outlet, water in the counterweight cage 11 can be discharged into the buffer zone 9 when needed, the counterweight is reduced, and the water discharged into the buffer zone 9 can be connected to an associated cooling system through a water pump 8 for supplementing cooling water. When the underground nuclear power plant needs cooling urgently, the water in the water replenishing tank 6 can also be directly discharged into the buffer zone 9 through the water injection mechanism 7.
The box type vertical escape method fully considers various conditions possibly occurring in the nuclear accident of the underground nuclear power plant, can quickly transfer underground workers to the ground, and meanwhile, under the extreme condition that a power system power supply and a standby power supply are both lost, can also quickly transfer the safety of the workers through the cooperation of the water quantity control and damping brake mechanism 12 of the counterweight car 11 and a passive mode. The water in the water replenishing tank 6 can be used for being injected into other cooling systems to replenish cooling water, so that the safety of the nuclear power station is guaranteed.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings and specific examples, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
Claims (7)
1. A box type vertical escape method for an underground nuclear power plant comprises the following steps:
step one, a personnel lift car (3) downwards passes through a shielding isolation area (2) under the traction of a traction mechanism (4) to enter the interior of a personnel intensive workshop (1.1);
step two, the escape personnel enter the personnel lift car (3);
thirdly, the personnel lift car (3) upwards passes through the shielding isolation area (2) under the traction of the traction mechanism (4);
and step four, the personnel lift car (3) ascends to the highest position of the escape vertical shaft (10.1) under the traction of the traction mechanism (4), and the escape personnel are conveyed upwards to a ground safety area.
2. The box type vertical escape method for an underground nuclear power plant according to claim 1, wherein: in the second step, the escape personnel can supply materials through the radiation-proof medicines and the fire-fighting articles placed in the personnel lift car (3).
3. A box type vertical escape method for an underground nuclear power plant according to claim 2, characterized in that: in the first step, the second step and the fourth step, when the power supply of the underground nuclear power plant normally works, the traction mechanism (4) is driven through the power mechanism (5), and when the power supply of the underground nuclear power plant fails, the traction mechanism (4) is driven through the counterweight car (11).
4. A box type vertical escape method for an underground nuclear power plant according to claim 3, characterized in that: when the traction mechanism (4) is driven by the power mechanism (5) and the personnel car (3) passes through the shielding isolation area (2), the inner shielding door (2.1) and the outer shielding door (2.2) of the shielding isolation area (2) are not opened at the same time; when the traction mechanism (4) is driven by the counterweight cage (11), and the personnel cage (3) passes through the shielding isolation area (2), the inner shielding door (2.1) and the outer shielding door (2.2) of the shielding isolation area (2) are opened simultaneously.
5. A box type vertical escape method for an underground nuclear power plant according to claim 4, characterized in that: when the traction mechanism (4) is driven by the power mechanism (5), and the personnel car (3) passes through the shielding isolation area (2), the escape personnel can clear radioactive substances on the body through the automatic radioactive substance cleaning device in the shielding isolation area (2).
6. A box type vertical escape method for an underground nuclear power plant according to claim 4, characterized in that: the counterweight car (11) utilizes the water replenishing tank (6) and the water injection mechanism (7) to replenish water through a water injection port at the top of the counterweight car to increase the counterweight, and the counterweight car (11) drains water through a water outlet at the bottom of the counterweight car to reduce the counterweight; the counterweight cage (11) is buffered by a buffer zone at the bottom of the counterweight shaft (10.2).
7. An escape method using a box-type vertical escape system according to claim 6, wherein: when the counterweight car (11) is used for traction, the damping braking mechanism (12) is arranged on the traction mechanism (4) to enable the personnel car (3) to stably run and land.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111113199.5A CN113955607B (en) | 2021-09-23 | 2021-09-23 | Box type vertical escape method for underground nuclear power plant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111113199.5A CN113955607B (en) | 2021-09-23 | 2021-09-23 | Box type vertical escape method for underground nuclear power plant |
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| CN113955607A true CN113955607A (en) | 2022-01-21 |
| CN113955607B CN113955607B (en) | 2023-06-27 |
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| JPH05137807A (en) * | 1991-11-22 | 1993-06-01 | Yoshio Nakagawa | Method of emergency evacuation and escape from structure without power |
| CN101249300A (en) * | 2008-04-08 | 2008-08-27 | 于福洋 | Hoisting machine escape life saving system for tall building |
| CN202609730U (en) * | 2012-04-06 | 2012-12-19 | 东南电梯股份有限公司 | Service lift special for nuclear power plant |
| JP5348443B1 (en) * | 2013-04-23 | 2013-11-20 | 正典 藤崎 | Tsunami intrusion prevention device |
| CN104401861A (en) * | 2014-12-10 | 2015-03-11 | 天地科技股份有限公司 | Method and device for increasing hoisting capability of vertical shaft friction type hoisting system |
| EP2918312A1 (en) * | 2012-07-19 | 2015-09-16 | Serbex Tecnología y Valores, S.L. | Gravity elevator |
| CN108996371A (en) * | 2018-06-15 | 2018-12-14 | 安徽建筑大学 | A kind of more floors collaboration escape device and personnel evacuation method |
| CN109646832A (en) * | 2019-01-14 | 2019-04-19 | 长江勘测规划设计研究有限责任公司 | The passive emergency escape system of underground nuclear power station and its escape method |
| CN110600152A (en) * | 2019-09-06 | 2019-12-20 | 长江勘测规划设计研究有限责任公司 | Symmetric underground nuclear power emergency escape system and escape method |
| CN211172080U (en) * | 2019-09-09 | 2020-08-04 | 中冶京诚工程技术有限公司 | Utility tunnel flees for one's life mouthful and utility tunnel |
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2021
- 2021-09-23 CN CN202111113199.5A patent/CN113955607B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05137807A (en) * | 1991-11-22 | 1993-06-01 | Yoshio Nakagawa | Method of emergency evacuation and escape from structure without power |
| CN101249300A (en) * | 2008-04-08 | 2008-08-27 | 于福洋 | Hoisting machine escape life saving system for tall building |
| CN202609730U (en) * | 2012-04-06 | 2012-12-19 | 东南电梯股份有限公司 | Service lift special for nuclear power plant |
| EP2918312A1 (en) * | 2012-07-19 | 2015-09-16 | Serbex Tecnología y Valores, S.L. | Gravity elevator |
| JP5348443B1 (en) * | 2013-04-23 | 2013-11-20 | 正典 藤崎 | Tsunami intrusion prevention device |
| CN104401861A (en) * | 2014-12-10 | 2015-03-11 | 天地科技股份有限公司 | Method and device for increasing hoisting capability of vertical shaft friction type hoisting system |
| CN108996371A (en) * | 2018-06-15 | 2018-12-14 | 安徽建筑大学 | A kind of more floors collaboration escape device and personnel evacuation method |
| CN109646832A (en) * | 2019-01-14 | 2019-04-19 | 长江勘测规划设计研究有限责任公司 | The passive emergency escape system of underground nuclear power station and its escape method |
| CN110600152A (en) * | 2019-09-06 | 2019-12-20 | 长江勘测规划设计研究有限责任公司 | Symmetric underground nuclear power emergency escape system and escape method |
| CN211172080U (en) * | 2019-09-09 | 2020-08-04 | 中冶京诚工程技术有限公司 | Utility tunnel flees for one's life mouthful and utility tunnel |
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|---|---|
| CN113955607B (en) | 2023-06-27 |
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