CN114068049A - Buffer device and passive residual heat removal system - Google Patents
Buffer device and passive residual heat removal system Download PDFInfo
- Publication number
- CN114068049A CN114068049A CN202111387571.1A CN202111387571A CN114068049A CN 114068049 A CN114068049 A CN 114068049A CN 202111387571 A CN202111387571 A CN 202111387571A CN 114068049 A CN114068049 A CN 114068049A
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- buffer
- heat exchanger
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- outlet
- buffer device
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- 239000012530 fluid Substances 0.000 claims abstract description 54
- 239000002918 waste heat Substances 0.000 claims abstract description 12
- 238000005192 partition Methods 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000013016 damping Methods 0.000 claims 5
- 230000010355 oscillation Effects 0.000 abstract description 20
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000000498 cooling water Substances 0.000 description 29
- 238000000034 method Methods 0.000 description 18
- 238000001816 cooling Methods 0.000 description 13
- 238000009835 boiling Methods 0.000 description 5
- 238000012546 transfer Methods 0.000 description 5
- 230000003139 buffering effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C15/00—Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
- G21C15/18—Emergency cooling arrangements; Removing shut-down heat
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C15/00—Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
- G21C15/02—Arrangements or disposition of passages in which heat is transferred to the coolant; Coolant flow control devices
- G21C15/12—Arrangements or disposition of passages in which heat is transferred to the coolant; Coolant flow control devices from pressure vessel; from containment vessel
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C15/00—Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
- G21C15/02—Arrangements or disposition of passages in which heat is transferred to the coolant; Coolant flow control devices
- G21C15/14—Arrangements or disposition of passages in which heat is transferred to the coolant; Coolant flow control devices from headers; from joints in ducts
-
- 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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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Structure Of Emergency Protection For Nuclear Reactors (AREA)
Abstract
The invention discloses a buffer device and a passive waste heat discharge system, wherein the buffer device is applied to the passive waste heat discharge system and comprises a buffer box, and the buffer box is provided with a pipe orifice for connecting an outlet pipeline on the shell side of a heat exchanger; an inlet pipeline for introducing fluid outside the containment into the buffer tank and an outlet pipeline for leading the fluid of the buffer tank out of the containment are further arranged. The invention aims to provide a buffer device and a passive residual heat removal system, wherein the buffer device is applied to the passive residual heat removal system, so that two-phase oscillation in an outlet pipeline of the system can be effectively eliminated, and the service lives of the system and equipment are prolonged.
Description
Technical Field
The invention relates to the technical field of passive waste heat removal systems, in particular to a buffer device and a passive waste heat removal system.
Background
In the design of the nuclear reactor safety special system, a passive residual heat removal system is adopted to lead out the reactor core residual heat generated after the nuclear reactor is shut down, so that the safety of the reactor is ensured. The passive residual heat removal system is connected with the secondary side of the heat source, the cooling water side outside the containment serves as a final heat sink, the heat exchanger is higher than the heat source in arrangement height, fluid heated by the heat source is arranged on the heat exchanger tube side, cooling water is arranged on the heat exchanger shell side, when the system is put into operation, density difference is caused by the potential difference and the temperature of the fluid to achieve natural circulation of the fluid, and the reactor core residual heat is led out to the cooling water side.
However, in the operation process of the passive residual heat removal system, it is found that a large amount of bubbles are generated and collapsed in the process that cooling water flows through the outlet pipeline after being heated by the heat exchanger, and the generated pressure oscillation can cause damage to the structural integrity of surrounding equipment and pipelines, namely, a two-phase oscillation phenomenon. Corresponding research finds that although the two-phase oscillation has little influence on the heat exchange power, the pressure impact effect on system equipment and pipelines caused by the two-phase oscillation is obvious, and the service life of the system is seriously reduced.
Disclosure of Invention
The invention aims to provide a buffer device and a passive residual heat removal system, wherein the buffer device is applied to the passive residual heat removal system, so that two-phase oscillation in an outlet pipeline of the system can be effectively eliminated, and the service lives of the system and equipment are prolonged.
The invention is realized by the following technical scheme:
in a first aspect of the application, the application provides a buffer device applied to a passive waste heat discharge system, which comprises a buffer tank, wherein the buffer tank is provided with a pipe orifice for connecting an outlet pipeline on the shell side of a heat exchanger; an inlet pipeline for introducing fluid outside the containment into the buffer tank and an outlet pipeline for leading the fluid of the buffer tank out of the containment are further arranged.
In the passive residual heat removal system in the prior art, a heat exchanger shell side inlet pipeline and a heat exchanger shell side outlet pipeline are arranged on a heat exchanger shell side (a cavity of a heat exchanger), the heat exchanger shell side inlet pipeline is used for introducing cold fluid (cooling water) outside a containment to the heat exchanger shell side, the cold fluid introduced to the heat exchanger shell side exchanges heat with hot fluid (fluid heated by a heat source) on the heat exchanger tube side (a heat exchange pipeline of the heat exchanger), because the temperature of the hot fluid is very high, the cold fluid on the heat exchanger tube side is likely to be heated to a boiling state, so that the heated cold fluid can generate a large amount of bubbles and collapse in the process of flowing out of the containment through the heat exchanger shell side outlet pipeline, pressure oscillation generated in the bubble generation and collapse process can cause damage to the integrity of surrounding equipment and pipeline structures, i.e. a two-phase oscillation phenomenon. Based on this, this application provides a buffer, this buffer sets up in the containment for the cold fluid after being heated does not directly discharge to cooling water system through the pipeline, but the cold fluid after being heated is carried to the buffer in the buffer earlier, makes the bubble cool in the buffer of big space, and the impact that produces in the cooling process is cushioned, thereby avoids the two-phase oscillation that the production of a large amount of bubbles and cooling in the aforesaid less space arouse.
Preferably, the nozzle is arranged at the bottom of the side wall of the buffer tank.
Preferably, the outlet duct is provided at the top of the side wall of the buffer tank.
Preferably, the inlet duct is disposed at a top of a sidewall of the buffer tank, and is disposed below the outlet duct.
Preferably, the inlet pipeline and the outlet pipeline are communicated, and the outlet pipeline and the inlet pipeline are separated by a partition.
Preferably, the partition is L-shaped, and a long side of the partition is flush with an end surface of the inlet duct or the outlet duct, and a short side of the partition is disposed near a bottom side of the buffer tank.
Preferably, the outlet duct is disposed above the inlet duct.
Preferably, the outer surface of the partition is covered with an insulating layer.
Preferably, the nozzle and the outlet duct are arranged opposite to each other.
In a second aspect of the present application, the present application provides a passive residual heat removal system, including the above-mentioned buffer device, the buffer device is disposed in a containment, and the outlet pipeline on the heat exchanger shell side is disposed at the nozzle of the buffer device, the inlet pipeline and the outlet pipeline penetrate through the containment and are disposed on the cold water side outside the containment.
In the passive residual heat removal system in the prior art, a heat exchanger shell side inlet pipeline and a heat exchanger shell side outlet pipeline are arranged on a heat exchanger shell side (a cavity of a heat exchanger), the heat exchanger shell side inlet pipeline is used for introducing cold fluid (cooling water) outside a containment to the heat exchanger shell side, the cold fluid introduced to the heat exchanger shell side exchanges heat with hot fluid (fluid heated by a heat source) on the heat exchanger tube side (a heat exchange pipeline of the heat exchanger), because the temperature of the hot fluid is very high, the cold fluid on the heat exchanger tube side is likely to be heated to a boiling state, so that the heated cold fluid can generate a large amount of bubbles and collapse in the process of flowing out of the containment through the heat exchanger shell side outlet pipeline, pressure oscillation generated in the bubble generation and collapse process can cause damage to the integrity of surrounding equipment and pipeline structures, i.e. a two-phase oscillation phenomenon. Based on this, the application provides a passive waste heat discharge system, for passive waste heat discharge system among the prior art, a buffer has been add to passive waste heat discharge system in this application, this buffer sets up between cooling water system and heat exchanger shell side outlet pipe, and be close to the heat exchanger shell side, make the cooling water after the heat transfer not directly through managing pipeline discharge to cooling water system, but carry the cooling water after the heat transfer to the buffer in earlier, make the bubble cool off in the buffer in big space, the impact that produces among the cooling process obtains the buffering, thereby avoid the above-mentioned less interior a large amount of bubbles of space to produce and cool off and the two-phase oscillation that arouses.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. compared with the common measure of adding a pore plate in the pipe to eliminate oscillation, the invention adopts the design of the buffer tank, so that the air mass is cooled in a large space, and meanwhile, the pressure wave caused in the cooling process is buffered by the water stored in the buffer tank before being transmitted to the pipeline and the water tank structure, thereby avoiding the impact on the structure;
2. the outer surface of the partition part is covered with the heat insulation layer, so that natural circulation flow can be established between the buffer tank and the final heat sink, and heat in the buffer tank is finally led into cooling water;
3. the inlet pipeline and the outlet pipeline extend out of the containment through the same hole, and redundant holes in the wall surface of the containment are avoided.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic diagram of a passive residual heat removal system in the prior art;
FIG. 2 is a schematic structural diagram of the passive residual heat removal system of the present invention;
reference numbers and corresponding part names in the drawings:
1. a heat exchanger; 2. a heat exchanger shell side outlet pipe; 3. a heat exchanger shell side inlet conduit; 4. a buffer tank; 5. an inlet duct; 6. an outlet conduit; 7. a spacer; 8. a containment shell; 9. a heat source.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Example 1
A buffer device is applied to a passive residual heat removal system and comprises a buffer tank 4, wherein a pipe orifice for connecting an outlet pipeline 2 on the shell side of a heat exchanger is arranged on the buffer tank 4, as shown in figure 2; an inlet pipeline 5 for introducing cooling water outside the containment into the buffer tank 4 and an outlet pipeline 6 for leading the cooling water subjected to heat exchange in the buffer tank 4 out of the containment are further provided.
In the passive residual heat removal system in the prior art, as shown in fig. 1, the left side of a containment shell 8 is inside the containment, the right side of the containment shell 8 is outside the containment, and the outside of the containment is filled with cooling water. The heat exchanger 1 and the heat source 9 are arranged in the containment, the heat exchanger shell side (a cavity of the heat exchanger 1) is provided with a heat exchanger shell side inlet pipeline 3 and a heat exchanger shell side outlet pipeline 2, the heat exchanger shell side inlet pipeline 3 is used for introducing cold fluid (cooling water) outside the containment to the heat exchanger shell side, the cold fluid introduced to the heat exchanger shell side exchanges heat with hot fluid (fluid heated by the heat source 9) at the heat exchanger tube side (a heat exchange pipeline of the heat exchanger 1), and because the temperature of the hot fluid is very high, the cold fluid at the heat exchanger tube side is likely to be heated to a boiling state, so that the heated cold fluid can generate and collapse a large amount of bubbles in the process of flowing out of the containment through the heat exchanger shell side outlet pipeline 2, and pressure oscillation generated in the bubble generating and collapsing processes can cause damage to the integrity of surrounding equipment and pipeline structures, i.e. a two-phase oscillation phenomenon. Based on this, the application provides a buffer device, and this buffer device sets up in the containment for the cold fluid after being heated does not discharge to the containment outside through the pipeline immediately, but the cold fluid after being heated is carried to buffer tank 4 in advance, makes the bubble cool down in buffer tank 4 in the big space, and the impact that produces in the cooling process is cushioned, thereby avoids the two-phase oscillation that the production of a large amount of bubbles and cooling in the aforesaid less space arouse.
Specifically, in the present embodiment, considering that the density of the heated cold fluid is smaller than that of the unheated cold fluid, in order to increase the heat exchange time between the heated cold fluid and the unheated cold fluid and improve the cooling effect of the heated cold fluid, the pipe orifice and the outlet pipe 6 are arranged on two opposite side walls of the buffer tank 4, the outlet pipe 6 is arranged at the top of the side walls, and the pipe orifice is arranged at the bottom of the side walls, so that the movement time of the heated cold fluid in the buffer tank 4 is increased, the heated cold fluid can be sufficiently cooled in the buffer tank 4, and the impact generated in the cooling process is also buffered; while in order to maintain the natural circulation conditions of the pipeline, the inlet duct 5 is arranged below the outlet duct 6 and at the top of the side walls.
Example 2
Further, since the application scenario of the present application is a nuclear reactor, the number of openings of the equipment in the nuclear reactor has strict requirements, and when the equipment in the nuclear reactor needs to be opened, the structural strength of the equipment in the nuclear reactor needs to be evaluated, and the evaluation flow is very complex. Based on this, in the present embodiment, on the basis of embodiment 1, the opening is not newly made in the containment shell 8, but the inlet pipe 5 and the outlet pipe 6 are extended from the containment shell through the through hole based on the through hole used for passing through the outlet pipe 2 on the heat exchanger shell side in the prior art.
Specifically, the inlet duct 5 and the outlet duct 6 in the present embodiment are formed by one duct being partitioned by the partition 7; the partition 7 in this embodiment is L-shaped, the long side of the partition 7 is flush with the end face of the inlet duct 5 or the outlet duct 6, the short side of the partition 7 is disposed near the bottom side of the buffer tank 4, and the outlet duct 6 is disposed above the inlet duct 5 in order to maintain the natural circulation condition of the pipeline.
Further, in order to avoid as much as possible heat exchange between the heated cold fluid in the buffer tank 4 and the unheated cold fluid in the inlet pipe 5, the outer surface of the partition 7 is also covered with an insulating layer.
Example 3
The embodiment provides a passive residual heat removal system, as shown in fig. 2, which includes a buffer device provided in embodiment 1, the buffer device is disposed in a containment and is disposed close to a heat exchanger 1, and an outlet pipeline 2 on a shell side of the heat exchanger is disposed at a pipe orifice of a buffer tank 4 and is used for conveying cooling water after heat exchange to the buffer tank 4 for cooling; the inlet pipeline 5 and the outlet pipeline 6 penetrate through the containment and are arranged on the cold water side outside the containment, and are respectively used for inputting cooling water into the buffer tank 4 to cool the cooling water after heat exchange and outputting the cooling water after heat exchange to the cold water side outside the containment.
Specifically, the method comprises the following steps:
the cooling water enters the containment through the heat exchanger shell side inlet pipeline 3 of the passive exhaust system, heat exchange is generated between the cooling water and the secondary side fluid of the steam generator on the heat exchanger tube side when the cooling water flows through the heat exchanger shell side, the cooling water on the heat exchanger shell side is probably heated to a boiling state, the two-phase fluid enters the buffer tank 4 with a larger space through the heat exchanger shell side outlet pipeline 2, so that bubbles are cooled in the large space, impact generated in the cooling process is buffered, and two-phase oscillation caused by generation and cooling of a large amount of bubbles in the smaller space is avoided. In addition, because the inlet pipeline 5 links to each other with the lower part of baffle-box 4, outlet pipe 6 opens on box upper portion simultaneously, inlet pipeline 5 opens in the lower part of baffle-box 4, consequently, allow the outside cooling water that the temperature is lower, density is great to get into baffle-box 4 from inlet pipeline 5 on the one hand, on the other hand, the two-phase fluid that the temperature is higher in the baffle-box 4 originally, density is less can follow upper portion outflow, added the heat transfer between one deck insulation material in order to avoid between the two as far as possible again between the cold and hot fluid simultaneously, thereby realize thermal derivation with natural circulation's mode.
As shown in fig. 1, a heat exchanger shell side inlet pipeline 3 and a heat exchanger shell side outlet pipeline 2 are arranged on a heat exchanger shell side (a cavity of a heat exchanger 1), the heat exchanger shell side inlet pipeline 3 is used for introducing a cold fluid (cooling water) outside a containment to the heat exchanger shell side, the cold fluid introduced to the heat exchanger shell side exchanges heat with a hot fluid (a fluid heated by a heat source 9) on the heat exchanger tube side (the heat exchange pipeline of the heat exchanger 1), because the temperature of the hot fluid is very high, the cold fluid on the heat exchanger tube side is likely to be heated to a boiling state, so that the heated cold fluid can generate and collapse a large amount of bubbles in the process of flowing out of the containment through the heat exchanger shell side outlet pipeline 2, and pressure oscillation generated in the bubble generating and collapsing process can cause damage to the integrity of surrounding equipment and pipeline structures, i.e. a two-phase oscillation phenomenon. Based on this, the application provides a passive waste heat discharge system, for the passive waste heat discharge system among the prior art, a buffer has been add to passive waste heat discharge system in this application, this buffer sets up between cooling water side and heat exchanger shell side outlet pipe 2, and be close to the heat exchanger shell side, make the cooling water after the heat transfer not discharge outside the containment through the pipeline immediately, but carry the cooling water after the heat transfer to in the baffle-box 4 earlier, make the bubble cool off in the baffle-box 4 of big space, the impact that produces among the cooling process obtains the buffering, thereby avoid the above-mentioned less space in a large amount of bubbles produce with the cooling and the two-phase oscillation that arouses.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the present invention in its spirit and scope. Are intended to be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The buffer device is characterized by being applied to a passive waste heat discharge system and comprising a buffer tank (4), wherein the buffer tank (4) is provided with a pipe orifice for connecting an outlet pipeline (2) on the shell side of a heat exchanger; an inlet conduit (5) for introducing fluid outside the containment into the buffer tank (4) and an outlet conduit (6) for leading fluid from the buffer tank (4) out of the containment are also provided.
2. A buffer device according to claim 1, characterized in that the nozzles are arranged at the bottom of the side walls of the buffer container (4).
3. A buffer device according to claim 1, characterized in that the outlet conduit (6) is arranged at the top of the side wall of the buffer tank (4).
4. A buffer device according to claim 3, characterized in that the inlet duct (5) is arranged at the top of the side wall of the buffer tank (4) and below the outlet duct (6).
5. A damping device according to claim 1, characterized in that the inlet duct (5) and the outlet duct (6) are arranged in communication, and that the outlet duct (6) and the inlet duct (5) are separated by a partition (7).
6. A damping device according to claim 5, characterized in that the partition (7) is L-shaped, and that the long side of the partition (7) is flush with the end surface of the inlet duct (5) or the outlet duct (6), and that the short side of the partition (7) is arranged close to the bottom side of the damping chamber (4).
7. A damping device according to claim 6, characterized in that the outlet duct (6) is arranged above the inlet duct (5).
8. A damping device according to claim 7, characterized in that the outer surface of the partition (7) is covered with an insulating layer.
9. A buffer device according to any one of claims 1-8, wherein the nozzle and the outlet conduit (6) are arranged opposite each other.
10. A passive residual heat removal system, characterized by comprising a buffer device according to any one of claims 1 to 9, said buffer device being arranged in a containment and being arranged close to a heat exchanger (1), wherein a heat exchanger shell side outlet conduit (2) is arranged at the orifice of said buffer device, and wherein said inlet conduit (5) and said outlet conduit (6) are arranged through said containment on the cold water side outside said containment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111387571.1A CN114068049A (en) | 2021-11-22 | 2021-11-22 | Buffer device and passive residual heat removal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111387571.1A CN114068049A (en) | 2021-11-22 | 2021-11-22 | Buffer device and passive residual heat removal system |
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| CN114068049A true CN114068049A (en) | 2022-02-18 |
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| CN202111387571.1A Pending CN114068049A (en) | 2021-11-22 | 2021-11-22 | Buffer device and passive residual heat removal system |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016011569A1 (en) * | 2014-07-24 | 2016-01-28 | 哈尔滨工程大学 | Containment cooling system, and containment and reactor pressure vessel joint cooling system |
| WO2020009734A1 (en) * | 2018-02-14 | 2020-01-09 | Holtec International | Flow baffles for shell and tube heat exchangers |
| CN111446013A (en) * | 2020-04-24 | 2020-07-24 | 上海核工程研究设计院有限公司 | Marine environment secondary side passive waste heat removal system and use method |
| CN112466485A (en) * | 2020-11-26 | 2021-03-09 | 中国船舶工业集团公司第七0八研究所 | Passive waste heat discharge system buffer water tank |
-
2021
- 2021-11-22 CN CN202111387571.1A patent/CN114068049A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016011569A1 (en) * | 2014-07-24 | 2016-01-28 | 哈尔滨工程大学 | Containment cooling system, and containment and reactor pressure vessel joint cooling system |
| WO2020009734A1 (en) * | 2018-02-14 | 2020-01-09 | Holtec International | Flow baffles for shell and tube heat exchangers |
| CN111446013A (en) * | 2020-04-24 | 2020-07-24 | 上海核工程研究设计院有限公司 | Marine environment secondary side passive waste heat removal system and use method |
| CN112466485A (en) * | 2020-11-26 | 2021-03-09 | 中国船舶工业集团公司第七0八研究所 | Passive waste heat discharge system buffer water tank |
Non-Patent Citations (2)
| Title |
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| 代守宝;彭敏俊;: "一体化压水堆非能动余热排出***运行特性影响因素分析", 原子能科学技术, no. 01 * |
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