CN112271004A - Microchannel heat exchanger vessel, high temperature gas-cooled reactor and system using the same - Google Patents
Microchannel heat exchanger vessel, high temperature gas-cooled reactor and system using the sameDownload PDFInfo
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- CN112271004A CN112271004ACN202011227083.XACN202011227083ACN112271004ACN 112271004 ACN112271004 ACN 112271004ACN 202011227083 ACN202011227083 ACN 202011227083ACN 112271004 ACN112271004 ACN 112271004A
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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
- G21C15/02—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
- 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
- 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
- G21C15/24—Promoting flow of the coolant
- G21C15/253—Promoting flow of the coolant for gases, e.g. blowers
- 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)
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- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Translated fromChinese
Description
Technical Field
The invention relates to the technical field of high-temperature gas cooled reactors, in particular to a micro-channel heat exchanger container, a high-temperature gas cooled reactor using the same and a system using the same.
Background
The high-temperature gas cooled reactor adopts an advanced thermal neutron reactor which is coated with granular fuel, takes graphite as a moderator and a core structure material and takes helium as a coolant. The characteristics of the high-temperature gas cooled reactor are as follows: 1. high temperature and high efficiency, and provides a multipurpose nuclear energy source of high-temperature nuclear heat; 2. the well-known intrinsic safety heap type has little pollution to the environment and can be built in a population-dense area; 3. a higher nuclear fuel conversion ratio can be achieved.
In the prior art, helium is generally used as a coolant of the high-temperature gas cooled reactor; in particular, the helium gas is stored in a larger volume of tubing. Helium is chosen for the coolant for reasons: 1. chemical inertness; 2. a core physical property; 3. easy purification; 4. the heat transfer performance and the heat carrying performance are good.
However, the use of the helium/steam cycle may allow water vapor to enter the core, thereby causing safety concerns; moreover, the occurrence probability of helium leakage is easily increased due to pipe cracking, and the safety is poor.
Disclosure of Invention
The invention aims to provide a micro-channel heat exchanger container, a high-temperature gas cooled reactor using the same and a system, which can reduce the probability of helium leakage and effectively improve the operation reliability and maintainability of a helium fan.
The embodiment of the invention is realized by the following steps:
a microchannel heat exchanger vessel, comprising: a vessel shell having one or more microchannel heat exchanger cores disposed therein;
the micro-channel heat exchanger core is provided with a circulation groove for circulating a heat-carrying working medium; the micro-channel heat exchanger core comprises a plurality of plate bodies which are connected together, grooves for forming circulation grooves are formed in the plate bodies, and a primary side heat-carrying working medium and a secondary side heat-carrying working medium respectively circulate in the circulation grooves of the adjacent plate bodies;
when the number of the micro-channel heat exchanger core bodies is multiple, the micro-channel heat exchanger core bodies are respectively connected with the hot end and the cold end of the primary side main pipeline and the hot end and the cold end of the secondary side main pipeline; the cold end of the primary side main pipeline is used for being connected with a helium fan; valves are arranged at the hot end inlet and the cold end inlet of the primary side main pipeline, and valves are arranged at the cold end inlet and the hot end outlet of the secondary side main pipeline.
In a preferred embodiment of the present invention, the plurality of plate bodies are connected by welding.
In a preferred embodiment of the present invention, the microchannel heat exchanger is disposed at the bottom of the vessel shell and is connected to the vessel shell through a flange.
A high temperature gas cooled reactor, comprising: a reactor vessel, and a microchannel heat exchanger vessel as described above in communication with the reactor vessel.
In a preferred embodiment of the present invention, a valve is disposed between the microchannel heat exchanger container and the reactor container, and helium is used as a primary side of the microchannel heat exchanger container, and carbon dioxide is used as a heat-carrying working medium at a secondary side of the microchannel heat exchanger container.
In a preferred embodiment of the present invention, the reactor vessel includes: a housing, and a core disposed within the housing.
A high temperature gas cooled reactor system, comprising: a microchannel heat exchanger vessel as described above; or a high temperature gas cooled reactor as described in any of the above.
In a preferred embodiment of the present invention, the microchannel heat exchanger vessel is connected to the reactor vessel and the power/steam generation system, respectively; the power generation/steam supply system comprises a high-pressure turbine, a low-pressure turbine, a driving turbine and a heat exchanger which are sequentially communicated, and the driving turbine is communicated with a generator; the other side of the heat exchanger is sequentially communicated with a precooler, a low-pressure compressor, an intercooler and a high-pressure compressor, the low-pressure compressor is communicated with the low-pressure turbine, and the high-pressure compressor is communicated with the high-pressure turbine.
In a preferred embodiment of the present invention, the microchannel heat exchanger container employs helium gas at the primary side, carbon dioxide at the secondary side as a heat-carrying medium, and a carbon dioxide brayton cycle as a power generation cycle.
In a preferred embodiment of the present invention, the tertiary side of the microchannel heat exchanger vessel directly produces high temperature steam.
In a preferred embodiment of the present invention, the tertiary side of the microchannel heat exchanger vessel is switched to produce high temperature steam.
In the preferred embodiment of the invention, the third side of the micro-channel heat exchanger container adopts compressed air as a heat-carrying working medium to generate electricity, thereby eliminating the need for a cooling water source.
A high-temperature gas cooled reactor system is applied to power generation and seawater desalination and is suitable for islands.
A high-temperature gas cooled reactor system is applied to power generation and heating and is suitable for northwest remote areas.
A high-temperature gas cooled reactor system is applied to industrial steam and is suitable for industrial parks.
The embodiment of the invention has the beneficial effects that: one or more microchannel heat exchanger cores are arranged in a container shell of the microchannel heat exchanger container; specifically, the micro-channel heat exchanger core comprises a plurality of plate bodies, each plate body is provided with a plurality of grooves, a circulation groove is formed between the grooves corresponding to two adjacent plate bodies, a heat-carrying working medium flows through the circulation grooves, a primary side heat-carrying working medium and a secondary side heat-carrying working medium respectively flow through the circulation grooves of the adjacent plate bodies, and the micro-channel heat exchanger core is respectively connected with the hot end and the cold end of a primary side main pipe and the hot end and the cold end of a secondary side main pipe; the cold end of the primary side main pipeline is connected with a helium fan; the hot end inlet and the cold end inlet of the primary side main pipeline are provided with valves, and the cold end inlet and the hot end outlet of the secondary side main pipeline are provided with valves, so that helium leakage can be effectively prevented, the sealing performance is improved, and the operation reliability and maintainability of the helium fan are improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a first schematic structural diagram of a microchannel heat exchanger vessel according to an embodiment of the invention;
FIG. 2 is a schematic structural view of a microchannel heat exchanger core in a microchannel heat exchanger vessel according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a high temperature gas cooled reactor system according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of another high temperature gas cooled reactor system according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a microchannel heat exchanger vessel according to an embodiment of the present invention.
In the figure:
1-a container housing; 2-a microchannel heat exchanger core; 21-a plate body; 22-a groove; 3-a circulation tank; 4-a reactor vessel; 41-a housing; 42-the core; 5-a power generation/steam supply system; 51-a high-pressure turbine; 52-a low pressure turbine; 53-driving a turbine; 54-a heat exchanger; 55-a generator; 56-a precooler; 57-a low pressure compressor; 58-an intercooler; 59-a high pressure compressor; 61-primary side hot end valve; 62-primary side hot end main pipe; 63-primary side cold side main pipe; 64-primary side cold side valve; 65-secondary side cold end valve; 66-secondary side cold end main pipe; 67-secondary side hot end valve; 68-secondary side hot end main pipeline; 7-helium fan.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
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.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
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.
Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
Referring to fig. 1, fig. 2 and fig. 5, the present embodiment provides a microchannel heat exchanger vessel, which includes: the heat exchanger comprises acontainer shell 1, wherein one or more micro-channelheat exchanger cores 2 are arranged in thecontainer shell 1; the micro-channelheat exchanger core 2 is provided with acirculation groove 3 for circulating helium; the micro-channel heatexchanger core body 2 comprises a plurality ofplate bodies 21 which are spliced together,grooves 22 for formingcirculation grooves 3 are formed in theplate bodies 21, and a primary side heat-carrying working medium and a secondary side heat-carrying working medium respectively circulate in the circulation grooves of the adjacent plate bodies.
When the number of the micro-channelheat exchanger cores 2 is multiple, the micro-channelheat exchanger cores 2 are respectively connected with the hot end and the cold end of the primary side main pipeline and the hot end and the cold end of the secondary side main pipeline; the cold end of the primary side main pipeline is used for being connected with a helium fan; valves are arranged at the hot end inlet and the cold end inlet of the primary side main pipeline, and valves are arranged at the cold end inlet and the hot end outlet of the secondary side main pipeline.
As shown in fig. 5, the arrangement of the microchannelheat exchanger core 2 in thevessel shell 1 is shown when the number thereof is plural.
In fig. 5, three microchannelheat exchanger cores 2 are provided in thevessel shell 1 as an example, but it is a matter of course that the arrangement is similar and not limited to this, when the number of the microchannelheat exchanger cores 2 is other.
Specifically, the hot end of the primary side main pipe is a primary side hot endmain pipe 62, the cold end of the primary side main pipe is a primary side cold endmain pipe 63, the cold end of the secondary side main pipe is a secondary side cold end main pipe 66, and the hot end of the secondary side main pipe is a secondary side hot endmain pipe 68.
Each micro-channelheat exchanger core 2 is connected to a primary side hot endmain pipe 62, a primary side cold endmain pipe 63, a secondary side hot endmain pipe 68 and a secondary side cold end main pipe 66, respectively. The primary side cold endmain pipe 63 is connected with thehelium fan 7, a primary sidecold end valve 64 is arranged on the primary side cold endmain pipe 63, a primary sidehot end valve 61 is arranged at the inlet of the primary side hot endmain pipe 62, a secondary sidecold end valve 65 is arranged on the secondary side cold end main pipe 66, and a secondary sidehot end valve 67 is arranged on the secondary side hot endmain pipe 68.
Referring to fig. 2, in the preferred embodiment of the present invention, thegrooves 22 are disposed on the surfaces of theplate bodies 21, and thegrooves 22 at corresponding (same) positions on twoadjacent plate bodies 21 surround thecirculation groove 3.
Referring to fig. 1, in a preferred embodiment of the present invention, the one or more microchannelheat exchanger cores 2 may preferably be disposed at the bottom of thevessel shell 1 and connected to thevessel shell 1 by flanges, thereby facilitating maintenance.
Referring to fig. 3 to 4, the present embodiment provides a high temperature gas cooled reactor, which includes: a reactor vessel 4, and a microchannel heat exchanger vessel as described above in communication with the reactor vessel 4.
Referring to fig. 3-4, in a preferred embodiment of the present invention, a valve may be disposed between the microchannel heat exchanger container and the reactor container 4, and the microchannel heat exchanger container may use helium gas as a primary side and carbon dioxide as a secondary side as a heat-carrying working medium.
In a preferred embodiment of the present invention, the carbon dioxide used in the secondary side of the microchannel heat exchanger vessel may be supercritical carbon dioxide.
Here, the supercritical gas is a gas exceeding the critical temperature, critical pressure, and critical volume of the gas-liquid. In a narrow sense, refers to a gas or fluid that is above a critical temperature state. The name of supercritical gas may be called high-density gas, high-pressure gas, ultrahigh-pressure gas, etc. according to different fields. The properties of a gas in a supercritical state have been completely different from its properties at normal temperature and pressure. Such as having a density close to that of a liquid, a small surface tension (almost close to 0), a large thermal conductivity compared to atmospheric gases, a low viscosity, etc., and is easily controlled by pressure regulation.
In addition, as the temperature and pressure of the environment change, the point at which three phases of any substance exist, namely gas phase, liquid phase, solid phase and three phases, are in equilibrium state and coexist is called a three-phase point. Supercritical fluid (SCF) is a fluid having a temperature and pressure above its Critical point, and is commonly used to produce supercritical fluids such as carbon dioxide, ammonia, ethylene, propane, propylene, water, etc. When an object is in a supercritical state, the properties of the gas phase and the liquid phase are very close to each other, so that the separation cannot be clearly seen, and therefore, the object is called a "supercritical fluid".
Referring to fig. 3-4, in a preferred embodiment of the present invention, the reactor vessel 4 may include: a housing 41, and a core 42 disposed within the housing 41.
In the preferred embodiment of the present invention, the core 42 is generally cylindrical, and has a graphite reflector layer surrounding the core, and a metal heat shield outside the reflector layer, the entire core 42 being housed in a prestressed concrete pressure shell.
It should be added here that the high temperature gas cooled reactors are classified into two types according to the shape and structure of their fuel elements: the ball bed high temperature gas cooled reactor and the column high temperature gas cooled reactor have the common characteristic that the coating particle fuel is adopted. Coating the particulate fuel, i.e. the fuel core plus a coating; the method specifically comprises the following steps: BISO particles, i.e. the fuel core plus two coating layers; TRISO particles, i.e., the fuel core plus three coating layers; its advantages are high resistance to high temp. The coating particles are too small to be used directly, and only the coating particles are dispersed in a graphite matrix and pressed into a fuel compact, and then the fuel compact is filled with graphite cladding to form fuel elements with different shapes for use, namely spherical elements and cylindrical elements. The prism block is provided with fuel holes, coolant holes, control rod holes, control poison holes and assembling and disassembling holes.
Referring to fig. 3-4, a high temperature gas cooled reactor system includes: a microchannel heat exchanger vessel as described above; or a high temperature gas cooled reactor as described in any of the above.
Referring to fig. 3, in a preferred embodiment of the present invention, the microchannel heat exchanger vessel may be connected to a reactor vessel 4 and a power/steam generation system 5, respectively; specifically, the power/steam generation system 5 may include a high-pressure turbine 51, a low-pressure turbine 52, adrive turbine 53, and aheat exchanger 54, which are connected in this order, and thedrive turbine 53 is connected to agenerator 55; further, the other side of theheat exchanger 54 may be sequentially communicated with aprecooler 56, a low-pressure compressor 57, anintermediate cooler 58 and a high-pressure compressor 59, with the low-pressure compressor 57 being communicated with the low-pressure turbine 52 and the high-pressure compressor 59 being communicated with the high-pressure turbine 51.
The micro-channel heat exchanger container is respectively connected with the reactor container 4 and the power generation/steam supply system 5, so that the reactor system and the power generation/steam supply system are effectively isolated, the probability of helium leakage can be reduced, and the operation reliability and maintainability of the helium fan are improved. In addition, the water vapor in the power generation/steam supply system can be effectively prevented from entering the reactor vessel.
Referring to fig. 4, in a preferred embodiment of the present invention, the micro-channel heat exchanger container may use helium gas on the primary side, carbon dioxide on the secondary side as a heat-carrying medium, and carbon dioxide brayton cycle as a power generation cycle, and the intercooler and/or precooler is connected to a seawater desalination system and/or heating system, so as to generate power and desalinate seawater, so as to be suitable for islands in the sea, generate power and heat, and be suitable for northwest regions.
Referring to fig. 4, in a preferred embodiment of the present invention, the third side of the microchannel heat exchanger vessel can directly generate high temperature steam, so as to be suitable for industrial parks and maximize the utilization of heat energy.
Referring to fig. 4, in a preferred embodiment of the present invention, the third side of the microchannel heat exchanger vessel may be switched to generate high temperature steam for use in industrial parks and to maximize heat energy utilization.
In a preferred embodiment of the present invention, the third side of the microchannel heat exchanger can use compressed air as a heat-carrying working medium to generate electricity, thereby eliminating the need for a cooling water source.
The embodiment of the invention has the beneficial effects that: one or more microchannel heat exchanger cores are arranged in a container shell of the microchannel heat exchanger container; specifically, the micro-channel heat exchanger core is provided with circulation grooves for circulating heat-carrying working media, and a primary side heat-carrying working medium and a secondary side heat-carrying working medium respectively circulate in the circulation grooves of adjacent plate bodies; the microchannel heat exchanger core includes a plurality of plate bodies connected together and provided with grooves for forming flow channels. The micro-channel heat exchanger cores are respectively connected with the hot end and the cold end of the primary side main pipeline and the hot end and the cold end of the secondary side main pipeline; the cold end of the primary side main pipeline is connected with a helium fan; the secondary main pipeline cold junction entry is provided with the valve and consequently can effectively prevent that the helium from revealing, improving sealing performance to improve the reliability and the maintainability of helium fan operation.
What needs to be added here is:
at present, the market has very urgent need for high-temperature steam boilers for replacing coal, and small multifunctional power stations in island, remote areas and other isolated areas also have great need. A small high temperature gas cooled reactor is a realistic solution.
The reason is that the basic technology required by the small high-temperature gas cooled reactor is mature or nearly mature in China, and the bottleneck of the manufacturing technology is overcome. The nuclear fuel, the micro-channel heat exchanger, the helium fan and the like have mature manufacturing technologies at home.
The problems encountered by the high-temperature gas cooled reactor at present are mainly that the power of the reactor is high, the specific power of the reactor core is low, and the difficulty of the type selection of a heat exchanger is high.
The proposal is that the maximum power of a small high-temperature gas cooled reactor is 120MW thermal power, a reactor core arrangement mode of shutdown and refueling and fixed lattices is adopted, a power generation mode of carbon dioxide Brayton cycle is adopted, and a micro-channel heat exchanger is adopted.
To speed up the development process, a nuclear reactor with less power can be started first. For example, a multifunctional power station with 50MW thermal power can be developed first to perform project construction, so as to complete the work of system design, equipment verification, and the like. The work can apply for policy support of the military and civil integration technology.
On the basis, taking a high-temperature gas cooled reactor of 50MW and 120MW as a core, the following 3 series of standard modular products are developed:
1. the power generation and seawater desalination are applicable to islands;
2. the power generation and heating system is suitable for northwest remote areas;
3. the steam for power generation and processing is suitable for industrial park.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A microchannel heat exchanger vessel, comprising: a vessel shell having one or more microchannel heat exchanger cores disposed therein;
the micro-channel heat exchanger core is provided with a circulation groove for circulating a heat-carrying working medium; the micro-channel heat exchanger core comprises a plurality of plate bodies which are connected together, grooves for forming circulation grooves are formed in the plate bodies, and a primary side heat-carrying working medium and a secondary side heat-carrying working medium respectively circulate in the circulation grooves of the adjacent plate bodies;
when the number of the micro-channel heat exchanger core bodies is multiple, the micro-channel heat exchanger core bodies are respectively connected with the hot end and the cold end of the primary side main pipeline and the hot end and the cold end of the secondary side main pipeline; the cold end of the primary side main pipeline is used for being connected with a helium fan; valves are arranged at the hot end inlet and the cold end inlet of the primary side main pipeline, and valves are arranged at the cold end inlet and the hot end outlet of the secondary side main pipeline.
2. The microchannel heat exchanger vessel of claim 1, wherein the microchannel heat exchanger core is disposed at a bottom of the vessel shell and is connected to the vessel shell by a flange.
3. A high temperature gas cooled reactor, comprising: a reactor vessel, and the microchannel heat exchanger vessel of claim 1 or 2 above in communication with the reactor vessel.
4. The high temperature gas cooled reactor according to claim 3, wherein a valve is disposed between the microchannel heat exchanger vessel and the reactor vessel, and helium is used as a primary side of the microchannel heat exchanger vessel, and carbon dioxide is used as a heat carrying medium as a secondary side of the microchannel heat exchanger vessel.
5. The high temperature gas-cooled reactor according to claim 3 or 4, wherein the reactor vessel includes: a housing, and a core disposed within the housing.
6. A high temperature gas cooled reactor system, comprising: the microchannel heat exchanger vessel of claim 1 or 2 above;
or a high temperature gas cooled reactor according to any of claims 3 to 5.
7. The high temperature gas cooled reactor system according to claim 6, wherein the microchannel heat exchanger vessel is connected to the reactor vessel and the power/steam generation system, respectively;
the power generation/steam supply system comprises a high-pressure turbine, a low-pressure turbine, a driving turbine and a heat exchanger which are sequentially communicated, and the driving turbine is communicated with a generator; the other side of the heat exchanger is sequentially communicated with a precooler, a low-pressure compressor, an intercooler and a high-pressure compressor, the low-pressure compressor is communicated with the low-pressure turbine, and the high-pressure compressor is communicated with the high-pressure turbine.
8. The high temperature gas cooled reactor system according to claim 6, wherein the microchannel heat exchanger vessel employs helium gas on the primary side, carbon dioxide on the secondary side as a heat carrying medium, and a carbon dioxide Brayton cycle as a power generation cycle.
9. The high temperature gas cooled reactor system according to claim 8,
the tertiary side of the micro-channel heat exchanger container directly generates high-temperature steam;
or the tertiary side of the micro-channel heat exchanger container generates high-temperature steam through a conversion valve.
10. The high temperature gas cooled reactor system according to claim 8, wherein the third side of the microchannel heat exchanger vessel uses compressed air as a heat carrying medium to generate electricity.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011227083.XACN112271004A (en) | 2020-11-05 | 2020-11-05 | Microchannel heat exchanger vessel, high temperature gas-cooled reactor and system using the same |
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| CN202011227083.XACN112271004A (en) | 2020-11-05 | 2020-11-05 | Microchannel heat exchanger vessel, high temperature gas-cooled reactor and system using the same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112814748A (en)* | 2021-02-07 | 2021-05-18 | 西安热工研究院有限公司 | Helium-carbon dioxide heat exchange system and method |
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