CN112850447A - Multi-station hoisting device for overhauling control rod driving mechanism of high-temperature gas cooled reactor - Google Patents
Multi-station hoisting device for overhauling control rod driving mechanism of high-temperature gas cooled reactor Download PDFInfo
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- CN112850447A CN112850447A CN202110149870.5A CN202110149870A CN112850447A CN 112850447 A CN112850447 A CN 112850447A CN 202110149870 A CN202110149870 A CN 202110149870A CN 112850447 A CN112850447 A CN 112850447A
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- hoisting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/16—Applications of indicating, registering, or weighing devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C7/00—Runways, tracks or trackways for trolleys or cranes
- B66C7/16—Devices specially adapted for limiting trolley or crane travel; Arrangements of buffer-stops
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C7/00—Control of nuclear reaction
- G21C7/06—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section
- G21C7/08—Control of nuclear reaction by application of neutron-absorbing material, i.e. material with absorption cross-section very much in excess of reflection cross-section by displacement of solid control elements, e.g. control rods
- G21C7/12—Means for moving control elements to desired position
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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
- Y02E30/30—Nuclear fission reactors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The utility model provides a multi-station hoisting device for overhauling a control rod driving mechanism of a high-temperature gas cooled reactor, which comprises a framework, a shell, a first hoisting assembly, a second hoisting assembly and a rotatable mounting plate; the shell is sleeved outside the framework, the framework is provided with a first mounting position and a second mounting position, the first mounting position is selectively provided with a first hoisting assembly, and the second mounting position is selectively provided with a second hoisting assembly; the first end of the rotatable mounting plate is connected with the framework, the second end of the rotatable mounting plate is used for being rotatably connected with the atmosphere isolation device, and the rotatable mounting plate is further provided with a hollow-out position to allow the first hoisting assembly and the second hoisting assembly to be hoisted on the control rod driving mechanism below the atmosphere isolation device through the hollow-out position. After the atmosphere isolation device is installed once, a plurality of control rod driving mechanisms of any unit under the atmosphere isolation device can be hoisted and transported, and leakage of helium of a primary circuit and diffusion of substances such as radioactive graphite dust can be effectively prevented in the hoisting process.
Description
Technical Field
The utility model belongs to the technical field of reactor overhauls, concretely relates to multistation hoist device that high temperature gas cooled reactor control rod drive mechanism overhauld usefulness.
Background
In the reactor operation process, the control rod system is used for controlling the reactivity and realizing the operation in different modes. During long-term operation, there is a need for control rod drive mechanism disassembly for service and electrical component replacement. The shell of the control rod driving mechanism of the high-temperature gas cooled reactor is a part of a pressure boundary of a primary circuit, and once the driving mechanism is disassembled, the pressure boundary of the primary circuit is destroyed, so that the original helium atmosphere is destroyed, and the risk of releasing radioactive gas in the reactor exists. In addition, the core of the primary loop of the high-temperature gas cooled reactor is composed of structures such as graphite and carbon, and the like, so that moisture is easy to absorb, and if more impurities are introduced into the primary loop system in the maintenance process, the helium purification and dehumidification period before the next startup can be prolonged. Therefore, an atmosphere isolation environment needs to be established in the overhauling and hoisting processes of the control rod driving mechanism of the high-temperature gas cooled reactor, and the atmosphere of a primary loop is kept.
The high temperature gas cooled reactor control rod driving mechanism has 24 groups, which can be divided into 6 units, each unit comprises 2 groups of external driving mechanisms and 2 groups of straight-through driving mechanisms. The atmosphere isolation device used for the external repair of the control rod driving mechanism is installed at one time, and the driving mechanism of one sealed unit (4 units) is disassembled and assembled. The atmosphere isolation device needs to form sealing fit with the nozzle of the control rod on the top cover of the pressure vessel so as to realize the purpose of isolating the atmosphere inside and outside the cabin. Therefore, the hoisting device should meet the hoisting requirement of 4 groups of driving mechanisms in one unit in the atmosphere isolation device.
Disclosure of Invention
The present disclosure aims to at least solve one of the technical problems in the prior art, and provides a multi-station hoisting device for overhauling a control rod drive mechanism of a high temperature gas cooled reactor.
The utility model provides a multistation hoisting device for overhauling a control rod driving mechanism of a high-temperature gas cooled reactor, which comprises a framework, a shell, a first hoisting assembly, a second hoisting assembly and a rotatable mounting plate;
the shell is sleeved outside the framework, a first installation position and a second installation position are arranged on the framework, the first hoisting assembly is selectively arranged at the first installation position, and the second hoisting assembly is selectively arranged at the second installation position;
the first end of rotatable mounting panel with the skeleton links to each other, the second end of rotatable mounting panel is used for linking to each other with atmosphere isolating device, rotatable mounting panel is provided with fretwork vacancy to allow first hoist and mount subassembly with the second hoist and mount subassembly via fretwork position hoist and mount is in control rod drive mechanism under the atmosphere isolating device.
In some optional embodiments, the first mounting positions are first mounting holes respectively arranged on two opposite sides of the framework;
the second mounting positions are second mounting holes which are respectively arranged on at least one opposite angle of the framework.
In some optional embodiments, the second mounting positions are second mounting holes respectively arranged on two opposite corners of the framework, and the second mounting holes on the two opposite corners selectively mount the second hoisting assembly.
In some optional embodiments, a plurality of positioning sleeves are arranged on the atmosphere isolation device, and a plurality of positioning columns are further arranged on the rotatable mounting plate, and selectively cooperate with the plurality of positioning sleeves to realize adjustment of the hoisting position; or the like, or, alternatively,
the atmosphere isolating device is provided with a plurality of positioning columns, the rotatable mounting plate is further provided with a plurality of positioning sleeves, and the positioning columns are selectively matched with the positioning sleeves to realize the adjustment of the hoisting position.
In some optional embodiments, the multi-station hoist device further comprises a first automatic door assembly disposed between the housing and the rotatable mounting plate.
In some optional embodiments, the first hoisting assembly comprises a first hoisting beam selectively disposed at the first mounting location and a first electric hoist movably disposed on the first hoisting beam.
In some optional embodiments, the first hoist assembly further comprises a first travel switch disposed on the first hoist beam.
In some optional embodiments, the second hoisting assembly comprises a second hoisting beam selectively disposed at the second mounting location and a second electric hoist movably disposed on the second hoisting beam.
In some optional embodiments, the second hoisting assembly further comprises a second travel switch disposed on the second hoisting beam.
In some optional embodiments, the multi-station hoisting device further comprises a window, and the window is arranged on the framework.
The utility model discloses a multistation hoist device, utilize the first hoist and mount subassembly that sets up, second hoist and mount subassembly and rotatable formula mounting panel, after atmosphere isolating device one-time installation is accomplished, can hoist and mount and transport a plurality of control rod drive mechanism of arbitrary one unit under this atmosphere isolating device, realize multistation hoist and mount, and can prevent the diffusion of substances such as the revealing of a return circuit helium and radioactive graphite dust effectively at the hoist and mount in-process, can block gaseous impurity and foreign matter entering a return circuit simultaneously, furthest keeps the purity of a return circuit helium.
Drawings
Fig. 1 is a schematic structural view of a multi-station hoisting device according to an embodiment of the disclosure;
fig. 2 is a schematic view of a working position of a multi-station hoisting device according to another embodiment of the disclosure;
fig. 3 is a top view of fig. 2.
Detailed Description
For a better understanding of the technical aspects of the present disclosure, reference is made to the following detailed description taken in conjunction with the accompanying drawings.
As shown in fig. 1 to 3, the embodiment relates to a multi-station hoisting device 100 for overhauling a high temperature gas cooled reactor control rod drive mechanism, where the multi-station hoisting device 100 includes a framework 110, a housing 120, a first hoisting assembly 130, a second hoisting assembly 140, and a rotatable mounting plate 150.
For example, as shown in fig. 1 to 3, the framework 110 may be a three-dimensional (e.g., rectangular or cubic) framework surrounded by a plurality of columns or steel pipes, and a hoisting space is provided inside the framework to allow the control rod driving mechanism 300, which is atmospherically isolated by the atmosphere isolating device 200, to be hoisted by using the first hoisting assembly 130 or the second hoisting assembly 140. The framework 110 is provided with a first mounting position 111 and a second mounting position 112 which are arranged in a crossed manner, wherein the crossed manner is as follows: as shown in fig. 1, the first mounting locations 111 may be located on two opposite sides of the frame 110, and the second mounting locations are located at opposite corners of the frame 110, such that the first mounting locations 111 and the second mounting locations 112 are disposed in a crossing manner. Of course, other arrangements may be adopted, specifically, the number and positions of the external driving mechanisms and the straight-through driving mechanisms contained in each unit are determined.
For example, as shown in fig. 1 and fig. 2, an outer shell 120 is sleeved on the outer side of the framework 110, the outer shell 120 may be a skin or some other structure, and the outer shell 120 may be arranged to effectively prevent external impurities from entering into the hoisting space, so as to ensure an atmosphere isolation environment of the control rod drive mechanism 300.
Illustratively, as shown in fig. 1 and 3, the first hoist assembly 130 is selectively positioned at the first installation site 111. As shown in fig. 1 and 3, the second hoist assembly 140 is selectively disposed at the second installation site 112. By selective setting is meant: when one of the crdm 300 in a unit is hoisted, the first hoist assembly 130 is now positioned at the first mounting location 111 to hoist the crdm 300 using the first hoist assembly 130. When another control rod drive mechanism 300 in one unit is hoisted, at this time, the first hoisting assembly 130 can be detached, and the second hoisting assembly 140 is arranged at the second installation position 112, so that the second hoisting assembly 140 is used for hoisting the other control rod drive mechanism 300, and the multi-station hoisting of the control rod drive mechanism is realized.
Illustratively, as shown in fig. 1 and 2, a first end of the rotatable mounting plate 150 is connected to the framework 110, and a second end of the rotatable mounting plate 150 is configured to be rotatably connected to the atmosphere isolation device 200, so that the multistation hoisting device 100 can have a plurality of different positional relationships with respect to the atmosphere isolation device 200 through the rotatable mounting plate 150, and thus, a multistation hoisting control rod driving mechanism can be further realized. The rotatable mounting plate 150 is provided with a hollowed-out area (not shown) to allow the first and second lifting assemblies 130 and 140 to lift the crdm 300 under the atmosphere isolator 200 via the hollowed-out area.
The multistation hoist device of this embodiment, utilize the first hoist and mount subassembly that sets up, second hoist and mount subassembly and rotatable formula mounting panel, after atmosphere isolating device one-time installation is accomplished, can hoist and mount and transport a plurality of control rod drive mechanism of arbitrary one unit under this atmosphere isolating device, realize the multistation hoist and mount, and can prevent the diffusion of substances such as the revealing and radioactive graphite dust of a return circuit helium effectively at the hoist and mount in-process, can block gaseous impurity and foreign matter entering a return circuit simultaneously, furthest keeps the purity of a return circuit helium.
Illustratively, as shown in fig. 1, the first mounting locations 111 are first mounting holes respectively disposed on two opposite sides of the framework 110. The second mounting locations 112 are second mounting holes respectively disposed at two opposite corners of the framework, but may also be second mounting holes disposed at only one of the opposite corners of the framework, and may be specifically determined according to the number of control rod drive mechanisms in each unit. In fig. 1, 2 and 3, when hoisting one of the crdm 300, the second hoisting assembly 140 may be installed in two second installation holes at one of the diagonal corners to hoist the crdm 300. When another crdm 300 is hoisted, the second hoisting assembly 140 may be installed in two second installation holes at the other diagonal corner to hoist the other crdm 300.
Illustratively, as shown in fig. 2 and 3, four locating sleeves 210 are provided on the atmosphere decoupling device 200. As shown in fig. 1 and 3, the rotatable mounting plate 150 is further provided with four positioning pillars 151, and the four positioning pillars 151 selectively cooperate with the four positioning sleeves 210 to achieve adjustment of the lifting position, that is, the four positioning pillars 151 correspond to the four positioning sleeves 210 in different orders, so that adjustment of different lifting positions can be achieved.
Besides the above manner, four positioning columns may be disposed on the atmosphere isolation device 200, and correspondingly, four positioning sleeves are disposed on the rotatable mounting plate 150, so that the adjustment of the hoisting position can also be achieved.
It should be noted that the number of the positioning sleeves and positioning pillars is not limited to four, and those skilled in the art can design the required hoisting positions and determine the number of the positioning sleeves and positioning pillars according to the actual hoisting requirements, for example, the number of the control rod driving mechanisms in one unit.
Illustratively, as shown in fig. 1, the multistation lifting device 100 further comprises a first automatic door assembly 160, wherein the first automatic door assembly 160 is disposed between the housing 120 and the rotatable mounting plate 150. Through the first automatic door subassembly 160 that sets up, when needs hoist, automatic opening, self-closing after the hoist and mount is accomplished to can prevent further effectively that a return circuit helium reveals and the diffusion of materials such as radioactive graphite dust, can block gaseous impurity and foreign matter entering a return circuit simultaneously, furthest keeps the purity of a return circuit helium.
Except that being provided with first automatic door subassembly on the multistation hoist device, also be provided with second automatic door subassembly on atmosphere isolating device, the principle is similar, through mutually supporting between them, can further prevent the diffusion etc. of revealing and substances such as radioactive graphite dust of a return circuit helium effectively.
Illustratively, as shown in fig. 1 and 3, the first hoisting assembly 130 includes a first hoisting beam 131 and a first electric hoist 132, the first hoisting beam 131 is selectively disposed at first mounting holes on two opposite sides of the framework 110, and the first electric hoist 132 is movably disposed on the first hoisting beam 131. As shown in fig. 1 and 3, the second hoisting assembly 140 includes a second hoisting beam 141 and a second electric hoist (not shown), the second hoisting beam 141 is selectively disposed at a second mounting hole on one diagonal corner of the framework 110, and the second electric hoist is movably disposed on the second hoisting beam 141.
In order to ensure that the lifting hook of the electric hoist can be positioned right above the control rod drive mechanism for each lifting, the first lifting assembly 130 further comprises a first travel switch (not shown) arranged on the first lifting beam 131. The second hoisting assembly 140 further comprises a second travel switch (not shown) arranged on the second hoisting beam 141.
It will be understood that since the first lifting beam 131 is disposed at the first mounting holes on two opposite sides of the framework 110 and the second lifting beam 141 is disposed at the second mounting holes on opposite corners of the framework 110, it is apparent that the length of the second lifting beam 141 is greater than that of the first lifting beam 131. The first hoisting beam 131 and the second hoisting beam 141 can be used for hoisting the straight-through driving device and the external driving device respectively. As shown in fig. 3, the first hoisting beam 131 is arranged at the level of the framework 110, and can complete direct hoisting of the straight-through driving mechanism, and when the second hoisting beam 141 is installed at the diagonal installation hole of the framework 110, the external driving mechanism can be hoisted after moving a section along the radial direction of the top cover.
Illustratively, as shown in fig. 1, the multi-station hoisting device 100 further includes a window 170, and the window 170 is disposed on the framework 110. Through the window 170, the user can conveniently check the hoisting state in the framework.
The specific working process of the embodiment of the present disclosure will be described in detail below with reference to fig. 1 to 3:
when the control rod driving mechanism is to be disassembled and repaired:
1. the multi-station hoisting device 100 is seated on the atmosphere isolation device 200, so that the positioning column 151 of the rotatable mounting plate 150 falls into the positioning sleeve 210 of the atmosphere isolation device 200, the butt joint work is completed, and the rotatable mounting plate 150 is fixed through the pressing block 220.
2. The first automatic door assembly 160 of the multi-station lifting device 100 and the second automatic door assembly of the atmosphere isolation device 200 are opened, respectively.
3. The first electric hoist 132 of the multi-station hoisting device 100 is started, the hook descends to a certain control rod driving mechanism 300 below the atmosphere isolation device 200, the control rod driving mechanism 300 is hoisted into the multi-station hoisting device 100, and then the first automatic door assembly 160 and the second automatic door assembly are closed.
4. The multi-station hoisting device 100 is hoisted to the control rod driving mechanism maintenance platform integrally through a factory crane, the first automatic door assembly 160 is opened, and the control rod driving mechanism 300 is seated to the maintenance platform through the first electric hoist 132.
5. If another control rod driving mechanism 300 needs to be hoisted and maintained, the hoisting cross beam (131 or 141) and the installation position are replaced, the multi-station hoisting device 100 is rotated to position to other installation positions on the atmosphere isolation device 200, and the control rod driving mechanism is hoisted according to the steps.
It is to be understood that the above embodiments are merely exemplary embodiments that are employed to illustrate the principles of the present disclosure, and that the present disclosure is not limited thereto. It will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the disclosure, and these are to be considered as the scope of the disclosure.
Claims (10)
1. A multi-station hoisting device for overhauling a control rod driving mechanism of a high-temperature gas cooled reactor is characterized by comprising a framework, a shell, a first hoisting assembly, a second hoisting assembly and a rotatable mounting plate;
the shell is sleeved outside the framework, the framework is provided with a first installation position and a second installation position which are arranged in a crossed mode, the first hoisting assembly is selectively arranged at the first installation position, and the second hoisting assembly is selectively arranged at the second installation position;
the first end of rotatable mounting panel with the skeleton links to each other, the second end of rotatable mounting panel is used for rotationally linking to each other with atmosphere isolating device, rotatable mounting panel is provided with fretwork vacancy to allow first hoist and mount subassembly with the second hoist and mount subassembly via fretwork position hoist and mount is in control rod drive mechanism under the atmosphere isolating device.
2. The multi-station hoisting device according to claim 1,
the first mounting positions are first mounting holes which are respectively arranged on two opposite edges of the framework;
the second mounting positions are second mounting holes which are respectively arranged on at least one opposite angle of the framework.
3. The multi-station hoisting device according to claim 2, wherein the second mounting positions are second mounting holes respectively arranged at two opposite corners of the framework, and the second hoisting assembly is selectively mounted in the second mounting holes at the two opposite corners.
4. The multi-station hoisting device according to claim 1,
the atmosphere isolation device is provided with a plurality of positioning sleeves, the rotatable mounting plate is also provided with a plurality of positioning columns, and the positioning columns are selectively matched with the positioning sleeves to realize the adjustment of a hoisting position; or the like, or, alternatively,
the atmosphere isolating device is provided with a plurality of positioning columns, the rotatable mounting plate is further provided with a plurality of positioning sleeves, and the positioning columns are selectively matched with the positioning sleeves to realize the adjustment of the hoisting position.
5. The multi-station hoisting device according to any one of claims 1 to 4, further comprising a first automatic door assembly disposed between the housing and the rotatable mounting plate.
6. The multi-station hoisting device according to any one of claims 1 to 4, wherein the first hoisting assembly comprises a first hoisting beam selectively arranged at the first installation position and a first electric hoist movably arranged on the first hoisting beam.
7. The multi-station hoisting device according to claim 6, wherein the first hoisting assembly further comprises a first travel switch, and the first travel switch is arranged on the first hoisting beam.
8. The multi-station hoisting device according to any one of claims 1 to 4, wherein the second hoisting assembly comprises a second hoisting beam selectively arranged at the second mounting position and a second electric hoist movably arranged on the second hoisting beam.
9. The multi-station hoisting device according to claim 8, wherein the second hoisting assembly further comprises a second travel switch, and the second travel switch is arranged on the second hoisting beam.
10. The multi-station hoisting device according to any one of claims 1 to 4, further comprising a window disposed on the frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110149870.5A CN112850447A (en) | 2021-02-03 | 2021-02-03 | Multi-station hoisting device for overhauling control rod driving mechanism of high-temperature gas cooled reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110149870.5A CN112850447A (en) | 2021-02-03 | 2021-02-03 | Multi-station hoisting device for overhauling control rod driving mechanism of high-temperature gas cooled reactor |
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| Publication Number | Publication Date |
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| CN112850447A true CN112850447A (en) | 2021-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110149870.5A Pending CN112850447A (en) | 2021-02-03 | 2021-02-03 | Multi-station hoisting device for overhauling control rod driving mechanism of high-temperature gas cooled reactor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114999692A (en) * | 2022-06-16 | 2022-09-02 | 中国核动力研究设计院 | Helium atmosphere maintaining device for high-temperature gas cooled reactor |
| CN115171934A (en) * | 2022-07-28 | 2022-10-11 | 中国核动力研究设计院 | Atmosphere isolation device for high-temperature gas cooled reactor main helium fan maintenance |
| CN115188508A (en) * | 2022-07-28 | 2022-10-14 | 中国核动力研究设计院 | Disassembly and assembly process of high-temperature gas cooled reactor main helium fan |
| CN115240886A (en) * | 2022-07-28 | 2022-10-25 | 中国核动力研究设计院 | Dismounting device for components of high-temperature gas cooled reactor primary helium fan |
-
2021
- 2021-02-03 CN CN202110149870.5A patent/CN112850447A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114999692A (en) * | 2022-06-16 | 2022-09-02 | 中国核动力研究设计院 | Helium atmosphere maintaining device for high-temperature gas cooled reactor |
| CN114999692B (en) * | 2022-06-16 | 2024-05-28 | 中国核动力研究设计院 | Helium atmosphere maintaining device for high-temperature gas cooled reactor |
| CN115171934A (en) * | 2022-07-28 | 2022-10-11 | 中国核动力研究设计院 | Atmosphere isolation device for high-temperature gas cooled reactor main helium fan maintenance |
| CN115188508A (en) * | 2022-07-28 | 2022-10-14 | 中国核动力研究设计院 | Disassembly and assembly process of high-temperature gas cooled reactor main helium fan |
| CN115240886A (en) * | 2022-07-28 | 2022-10-25 | 中国核动力研究设计院 | Dismounting device for components of high-temperature gas cooled reactor primary helium fan |
| CN115240886B (en) * | 2022-07-28 | 2023-09-19 | 中国核动力研究设计院 | High-temperature gas cooled reactor main helium fan component dismounting device |
| CN115171934B (en) * | 2022-07-28 | 2023-09-19 | 中国核动力研究设计院 | Atmosphere isolation device for overhauling main helium fan of high-temperature gas cooled reactor |
| CN115188508B (en) * | 2022-07-28 | 2023-11-17 | 中国核动力研究设计院 | Dismounting process of high-temperature gas cooled reactor main helium fan |
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