CN115798747A - Monomer dilatation middling pressure electric penetration piece suitable for heap - Google Patents
Monomer dilatation middling pressure electric penetration piece suitable for heap Download PDFInfo
- Publication number
- CN115798747A CN115798747A CN202211537049.1A CN202211537049A CN115798747A CN 115798747 A CN115798747 A CN 115798747A CN 202211537049 A CN202211537049 A CN 202211537049A CN 115798747 A CN115798747 A CN 115798747A
- Authority
- CN
- China
- Prior art keywords
- penetrating
- cylinder body
- conductor
- medium
- junction box
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000035515 penetration Effects 0.000 title claims abstract description 36
- 239000000178 monomer Substances 0.000 title claims abstract description 14
- 239000004020 conductor Substances 0.000 claims abstract description 112
- 230000000149 penetrating effect Effects 0.000 claims abstract description 75
- 239000010410 layer Substances 0.000 claims description 54
- 238000007789 sealing Methods 0.000 claims description 17
- 239000011241 protective layer Substances 0.000 claims description 15
- 230000007704 transition Effects 0.000 claims description 14
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 239000010949 copper Substances 0.000 claims description 10
- 238000003466 welding Methods 0.000 claims description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims description 9
- 239000010935 stainless steel Substances 0.000 claims description 9
- 239000004831 Hot glue Substances 0.000 claims description 8
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 8
- 239000004642 Polyimide Substances 0.000 claims description 8
- 229920002530 polyetherether ketone Polymers 0.000 claims description 8
- 229920001721 polyimide Polymers 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 238000005192 partition Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 5
- 239000002861 polymer material Substances 0.000 claims description 5
- 239000004695 Polyether sulfone Substances 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 claims description 4
- 229920002492 poly(sulfone) Polymers 0.000 claims description 4
- 229920006393 polyether sulfone Polymers 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 230000006978 adaptation Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Images
Classifications
-
- 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
Abstract
The embodiment of the invention provides a monomer capacity-expansion medium-voltage electric penetration assembly suitable for a small stack, which comprises: the penetrating cylinder is arranged at one end close to the penetrating cylinder, penetrates through the outer side of the cylinder and is used for penetrating through a containment vessel of the small reactor and then is connected with the inner layer of the containment vessel; the outer side of the cylinder body penetrating through the cylinder body and close to the other end of the penetrating cylinder body is used for penetrating out of a through hole in the outer layer of the containment vessel of the small reactor; the first junction box assembly is positioned in the small pile and connected with one end of the penetrating cylinder; the second junction box assembly is used for being positioned outside the small pile and connected with the other end of the penetrating cylinder; two ends of the medium-voltage conductor penetrate out of two ends in the penetrating cylinder body respectively and are connected with the first junction box assembly and the second junction box assembly respectively; and a ground conductor. The embodiment of the invention realizes the adaptation to the temperature and the irradiation condition under each working condition of a small pile and meets the requirement of monomer capacity expansion.
Description
Technical Field
The invention relates to a single body capacity-expansion medium-voltage electric penetration piece suitable for a small stack.
Background
Until now, all major nuclear technology-intensive countries in the world have carried out relevant work on small piles of research and development. The U.S. department of energy supports two kinds of small heap designs of mPower and Nuscale; the Russian small stack technology KLT40S floating nuclear power station is in a debugging stage; RITM-200 nuclear power ice breaking bow, starting up in 2013 and launching in 2016; the korean SMART small lot was completed and engineering feasibility studies are being conducted. ACP100 small piles in China are designed and are being developed for engineering construction.
At present, the construction of a 'exquisite-I' small-pile nuclear power station demonstration project taking ACP100 as a prototype in Changjiang Hainan is approved and the construction is carried out, and the nuclear power station demonstration project is used as a third-generation pile type which is mainly pushed to the international market after Hualong I in China. The electrical penetration assembly is installed on a containment vessel of a reactor, plays a role in maintaining electrical continuity of electrical equipment of a nuclear island and integrity of a pressure boundary of the containment vessel, and also needs to carry out related research work according to requirements of new environmental conditions, interface requirements and the like of a small reactor.
To date, the medium-voltage electrical penetration pieces installed on containment vessels of all second-generation and third-generation technical nuclear power plants in China are all arranged by adding 1 grounding conductor to 3 power conductors. The small reactor adopts a double-layer containment structure, specifically, the inner layer adopts a steel containment, and the outer layer adopts a reinforced concrete structure. Because the small reactor puts forward miniaturization requirements on a reactor factory building, the diameter size of the whole containment vessel is greatly reduced, the number of conductors required to be configured for each electric penetration piece is increased, and the capacity expansion design needs to be carried out on the single electric penetration piece.
Disclosure of Invention
The embodiment of the invention provides a monomer capacity-expansion medium-voltage electric penetration assembly suitable for a small reactor, so as to adapt to the temperature and irradiation conditions of the small reactor under various working conditions and meet the requirement of monomer capacity expansion.
The embodiment of the invention is realized by the following technical scheme:
in a first aspect, an embodiment of the present invention provides a single volume-expanding medium-voltage electrical penetration assembly suitable for a small stack, including:
the penetrating cylinder body is close to one end of the penetrating cylinder body, and the outer side of the penetrating cylinder body is used for penetrating a containment vessel of the small reactor and then is connected with the inner layer of the containment vessel; the outer side of the cylinder body penetrating through the cylinder body and close to the other end of the penetrating cylinder body is used for penetrating out of a through hole in the outer layer of the containment vessel of the small reactor;
the first junction box assembly is positioned in the small pile and connected with one end of the penetrating cylinder;
the second junction box assembly is used for being positioned outside the small pile and connected with the other end penetrating through the barrel;
the medium-voltage conductor is arranged in the penetrating cylinder body, and two ends of the medium-voltage conductor respectively penetrate out of two ends in the penetrating cylinder body and are respectively connected with the first junction box assembly and the second junction box assembly; and
and the grounding conductor is arranged in the through cylinder body, and the two ends of the grounding conductor are respectively connected with the first junction box component and the second junction box component after penetrating out from the two ends in the through cylinder body.
Furthermore, a pressure monitoring assembly is connected to the penetrating cylinder.
Furthermore, the outer side of the penetrating cylinder body close to one end of the penetrating cylinder body is used for penetrating through a containment vessel of the small reactor and then is welded with the inner layer of the containment vessel; the first junction box component is detachably connected with one end penetrating through the barrel; the second junction box component is detachably connected with the other end of the through cylinder.
Further, the through cylinder includes:
the cylinder is used for penetrating the medium-voltage conductor and the grounding conductor; comprises an inner layer connecting section cylinder and an outer layer connecting section cylinder;
the inlayer linkage segment barrel is equipped with:
the transition sleeve is sleeved outside the inner-layer connecting section cylinder body and is used for being welded with an embedded sleeve of the inner layer of the containment of the small reactor and a welding flange, the transition sleeve is sleeved outside the inner-layer connecting section cylinder body, and the transition sleeve is welded outside the inner-layer connecting section cylinder body through the welding flange.
Further, first terminal box subassembly and second terminal box subassembly all include:
the junction box is detachably connected with one end, close to the junction box, of the inner-layer connecting section cylinder through an end plate;
and an end plate provided with a through hole for passing the medium voltage conductor and the ground conductor.
Further, the through-hole includes:
a medium voltage conductor through hole for passing the medium voltage conductor;
a ground conductor via for passing a ground conductor;
the number of the grounding conductor through holes is one and is located at the center of the end plate, the number of the medium-voltage conductor through holes is a plurality, and the plurality of medium-voltage conductor through holes are uniformly distributed around the grounding conductor through holes in a circular shape by taking the center of the grounding conductor through hole as a circle center.
Further, the number of the medium-voltage conductors is 6, the number of the medium-voltage conductor through holes is 6, and the 6 medium-voltage conductors form a 2-way three-phase power supply circuit; the 2-path three-phase power supply paths are axially alternately distributed in a staggered manner and are separated by 2 insulating supporting partition plates.
Further, the medium voltage conductor includes:
an oxygen-free copper conductor;
the insulating protective layer is coated outside the oxygen-free copper conductor; and
and the stainless steel outer sleeve is sleeved outside the insulating protective layer, and two ends of the stainless steel outer sleeve are connected with the insulating protective layer in a sealing manner through the sealing modules.
Further, the insulating protective layer is made of polyether-ether-ketone or polyimide; or the insulating protection layer is made of a composite insulating material consisting of a plurality of layers of heat-shrinkable tubes with hot melt adhesive or heat-shrinkable tubes without hot melt adhesive; the sealing module is made of single or multiple polymer materials such as polyether sulfone, polyether ether ketone, polyimide or polysulfone.
Furthermore, the medium-voltage conductor is formed by adopting a continuous balanced extrusion process.
Compared with the prior art, the embodiment of the invention has the following advantages and beneficial effects:
according to the monomer expansion medium-voltage electric penetration piece suitable for the small reactor, through the penetration barrel, the outer side of the penetration barrel close to one end of the penetration barrel is used for penetrating through the containment vessel of the small reactor and then is connected with the inner layer of the containment vessel; the outer side of the cylinder body penetrating through the cylinder body and close to the other end of the penetrating cylinder body is used for penetrating out of a through hole in the outer layer of the containment vessel of the small reactor; the first junction box assembly is positioned in the small pile and connected with one end of the penetrating cylinder; the second junction box assembly is used for being positioned outside the small pile and connected with the other end penetrating through the barrel; the medium-voltage conductor is arranged in the penetrating cylinder body, and two ends of the medium-voltage conductor respectively penetrate out of two ends in the penetrating cylinder body and are respectively connected with the first junction box assembly and the second junction box assembly; and the grounding conductor is arranged in the through cylinder body, and the two ends of the grounding conductor are respectively connected with the first junction box component and the second junction box component after penetrating out from the two ends in the through cylinder body, so that the temperature and irradiation conditions under each working condition of the small reactor are adapted, and the requirement of monomer expansion is met.
Drawings
In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the drawings that are required 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 that those skilled in the art may also derive other related drawings based on these drawings without inventive effort.
FIG. 1 is a schematic diagram of a single volume-expandable medium-voltage electrical penetration assembly suitable for use in a small stack.
Fig. 2 is a schematic diagram of the internal structure of the medium voltage conductor.
Fig. 3 is a schematic diagram of a distribution structure of the medium voltage conductor.
Fig. 4 is a schematic diagram of the distribution structure of the end plate cells.
Reference numbers and corresponding part names in the drawings:
1-a first junction box component, 2-a medium-voltage conductor, 3-an insulating support clapboard, 4-a grounding conductor, 5-an end plate, 6-a steel containment embedded sleeve, 7-a cylinder, 8-a transition sleeve, 9-a welding flange, 10-a containment outer layer, 11-a pressure monitoring component, 12-an oxygen-free copper conductor, 13-an insulating protective layer, 14-a sealing module, 15-a stainless steel outer sleeve, 16-a first insulating support clapboard, 17-a second insulating support clapboard, 18-a three-phase power supply path, 19-a medium-voltage conductor through hole, 20-a grounding conductor through hole and 21-a second junction box component.
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.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to one of ordinary skill in the art that: it is not necessary to employ these specific details to practice the present invention. In other instances, well-known structures, circuits, materials, or methods have not been described in detail in order to avoid obscuring the present invention.
Throughout the specification, reference to "one embodiment," "an embodiment," "one example," or "an example" means: the particular features, structures, or characteristics described in connection with the embodiment or example are included in at least one embodiment of the invention. Thus, the appearances of the phrases "one embodiment," "an embodiment," "one example" or "an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics may be combined in any suitable combination and/or sub-combination in one or more embodiments or examples. Further, those of ordinary skill in the art will appreciate that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In the description of the present invention, the terms "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "upper", "lower", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, merely for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore, should not be construed as limiting the scope of the invention.
Examples
In order to achieve the temperature and irradiation conditions under various working conditions of a small stack and meet the requirement of monomer expansion, in a first aspect, an embodiment of the present invention provides a monomer expansion medium-voltage electrical penetration assembly suitable for a small stack, which is shown in fig. 1 to 4, and includes:
the penetrating cylinder body is close to one end of the penetrating cylinder body, and the outer side of the penetrating cylinder body is used for penetrating a containment vessel of the small reactor and then is connected with the inner layer of the containment vessel; the outer side of the cylinder body of the through cylinder body close to the other end of the through cylinder body is used for penetrating out of a through hole in the outer layer 10 of the containment vessel of the small reactor;
the first junction box assembly 1 is positioned in the small pile and connected with one end of the penetrating cylinder;
the second junction box assembly 21 is used for being positioned outside the small pile and connected with the other end penetrating through the barrel;
the medium-voltage conductor 2 is arranged in the penetrating cylinder body, and two ends of the medium-voltage conductor respectively penetrate out of two ends in the penetrating cylinder body and are respectively connected with the first junction box assembly and the second junction box assembly; and
and the grounding conductor 4 is arranged in the through cylinder, and the two ends of the grounding conductor are respectively connected with the first junction box component and the second junction box component after penetrating out from the two ends in the through cylinder.
According to the embodiment of the invention, through the penetrating cylinder body, the outer side of the penetrating cylinder body close to one end of the penetrating cylinder body is used for penetrating the containment vessel of the small reactor and then is connected with the inner layer of the containment vessel; the outer side of the cylinder body of the through cylinder body, which is close to the other end of the through cylinder body, is used for penetrating out of a through hole in the outer layer of the containment vessel of the small reactor; the first junction box assembly is positioned in the small pile and connected with one end of the penetrating cylinder body; the second junction box assembly is used for being positioned outside the small pile and connected with the other end penetrating through the barrel; the medium-voltage conductor is arranged in the penetrating cylinder body, and two ends of the medium-voltage conductor respectively penetrate out of two ends in the penetrating cylinder body and are respectively connected with the first junction box assembly and the second junction box assembly; and the grounding conductor is arranged in the through cylinder body, and the two ends of the grounding conductor are respectively connected with the first junction box component and the second junction box component after penetrating out from the two ends in the through cylinder body, so that the temperature and irradiation conditions under each working condition of the small reactor can be adapted, and the requirement of monomer expansion can be met.
The containment is a double-layer containment structure, the inner layer of the containment is a steel containment, and the outer layer of the containment is a reinforced concrete structure. Optionally, the inner layer of the containment vessel is sleeved with the through cylinder through a steel containment vessel embedded sleeve 6.
Further, a pressure monitoring assembly 11 is connected through the barrel.
Furthermore, the outer side of the penetrating cylinder body close to one end of the penetrating cylinder body is used for penetrating through a containment vessel of the small reactor and then is welded with the inner layer of the containment vessel; the first junction box component is detachably connected with one end penetrating through the barrel; the second junction box component is detachably connected with the other end penetrating through the barrel.
Further, the through cylinder includes:
the cylinder 7 is used for penetrating the medium-voltage conductor and the grounding conductor; comprises an inner layer connecting section cylinder and an outer layer connecting section cylinder;
the inlayer linkage segment barrel is equipped with:
and the transition sleeve 8 is sleeved outside the inner-layer connecting section cylinder body and is used for welding with an embedded sleeve of the inner layer of the containment of the small reactor and a welding flange 9, the transition sleeve is sleeved outside the inner-layer connecting section cylinder body, and the transition sleeve is welded outside the inner-layer connecting section cylinder body through the welding flange.
Further, first terminal box subassembly and second terminal box subassembly all include:
the junction box is detachably connected with one end, close to the junction box, of the inner-layer connecting section cylinder through an end plate;
and an end plate 5 provided with a through hole for passing the medium voltage conductor and the ground conductor.
Further, the through-hole includes:
a medium voltage conductor through hole 19 for passing a medium voltage conductor;
a ground conductor via 20 for passing a ground conductor;
the number of the grounding conductor through holes is one and is positioned in the center of the end plate, the number of the medium-voltage conductor through holes is a plurality, and the plurality of medium-voltage conductor through holes are circularly and uniformly distributed around the grounding conductor through holes by taking the center of the grounding conductor through hole as a circle center.
Furthermore, the number of the medium-voltage conductors is 6, the number of the medium-voltage conductor through holes is 6, and the 6 medium-voltage conductors form a 2-way three-phase power supply circuit; the 2-path three-phase power supply paths are axially and alternately distributed in a staggered way and are separated by 2 insulating support partition plates 3.
Referring to fig. 3, the 2-way three-phase power supply path is divided into two one-way three-phase power supply paths 18 by a first insulating support partition 16 and a second insulating support partition 17.
Further, the medium voltage conductor includes:
an oxygen-free copper conductor 12;
the insulating protective layer 13 is coated outside the oxygen-free copper conductor; and
and the stainless steel outer sleeve 15 is sleeved outside the insulating protective layer, and two ends of the stainless steel outer sleeve are connected with the insulating protective layer in a sealing manner through the sealing modules.
Further, the insulating protective layer is made of polyether-ether-ketone or polyimide; or the insulating protective layer is made of a composite insulating material consisting of a plurality of layers of heat-shrinkable tubes with hot melt adhesive or heat-shrinkable tubes without hot melt adhesive; the sealing module 14 is made of a single or multiple polymer materials such as polyethersulfone, polyetheretherketone, polyimide or polysulfone.
Furthermore, the medium-voltage conductor is formed by adopting a continuous balanced extrusion process.
Specifically, referring to fig. 1-4, a single volume-expanding medium-voltage electrical penetration suitable for small stacks includes a barrel, an end plate, a welding flange, a transition sleeve, a medium-voltage conductor, a ground conductor, a pressure monitoring assembly, an insulating support baffle, and a junction box assembly (a first junction box assembly and a second junction box assembly); all adopt the mode of dismantling to assemble between each part, be convenient for maintain and change. Because the position space of the middle ring corridor of the small reactor is narrow, and the installation space in the containment is limited, the medium-voltage electric penetration piece of the embodiment of the invention adopts a connection mode that the medium-voltage electric penetration piece integrally penetrates through the double-layer containment from the outer-layer containment and is welded with the embedded sleeve 6 of the inner-layer steel containment through the transition sleeve of the cylinder assembly.
Because the installation channel of the small stack of the electric penetration piece is limited, the medium-voltage electric penetration piece of the embodiment of the invention adopts a construction mode of 6 medium-voltage conductors and one grounding conductor, wherein the 6 medium-voltage conductors are uniformly distributed on the same circumference and can simultaneously provide 2 three-phase power supply paths. Therefore, the number of the installed medium-voltage electric penetration pieces in the small pile single unit is reduced by half, and the limited installation and arrangement space is saved while the purpose of single expansion of the electric penetration pieces is realized.
As shown in fig. 2, the medium voltage conductor includes an oxygen free copper conductor, an insulation protection layer, a sealing module, and a stainless steel outer sleeve; the oxygen-free copper conductor has a continuous and uniform structure in the medium-voltage conductor, is low in volume resistivity and has good conductivity; the insulating protective layer is made of polymer materials such as polyether-ether-ketone or polyimide and the like, and a plurality of layers of heat-shrinkable tubes with hot melt adhesives or heat-shrinkable tubes without hot melt adhesives to form a composite insulating material to coat the oxygen-free copper conductor, so that the insulating property of the whole length of the conductor is ensured; the sealing modules are positioned at two ends of the inside of the stainless steel outer sleeve and are made of single or multiple polymer materials such as polyether sulfone, polyether ether ketone, polyimide or polysulfone. The medium-voltage conductor is formed by adopting a continuous balanced extrusion process, the assembly clearance of each part is eliminated, the outer diameter size is uniform, the replacement is convenient, and the reliable sealing performance of the medium-voltage conductor is ensured. The part of the 2-path three-phase medium-voltage conductor exposed out of the cylinder end plate is separated by 2 insulating support partition plates at the inner and outer ends of the containment vessel and is axially alternately distributed in a staggered manner. The electric insulation is ensured, and the reliable connection without interference between the external 2 independent cables is realized.
Therefore, the embodiment of the invention adapts to the temperature and irradiation conditions of small reactors under normal and various accident conditions, meets the special requirement of monomer capacity expansion, reduces the installation quantity of medium-voltage electric penetration pieces required by small reactor nuclear power plants by half, and has the characteristics of installation space saving, convenient installation and maintenance, reliable sealing and electric performance, mature and stable manufacturing process and the like. Meanwhile, the construction cost of the whole small-reactor nuclear power plant is reduced, and the economy is improved.
In conclusion, the technical scheme of monomer expansion is mature and reliable, and all the components are detachably mounted, so that the maintenance is convenient; the 6 medium-voltage conductors are uniformly distributed on the same circumference, and the design of 2 independent three-phase power paths can be provided at the same time, so that the installation and arrangement space is saved; the distribution pattern and the electric clearance are specially calculated and analyzed and are verified through tests; the arrangement of the 6 medium-voltage conductors reduces the installation quantity of medium-voltage electric penetration pieces in a small pile of single nuclear power unit, and the economy is high.
The embodiment of the invention integrally penetrates through the double-layer containment vessel and is connected with the embedded sleeve of the inner-layer steel containment vessel in a welding mode through the transition sleeve arranged on the cylinder assembly, and the arrangement of the transition sleeve solves the problem of mass center offset caused by the increase of the length of the cylinder assembly, so that the mass center of the medium-voltage electric penetration piece is basically positioned in the middle of the integral structure, and the gravity center is balanced; the medium-voltage conductor adopts a sealing mode of a metal clamping sleeve, the sealing performance of the whole machine is reliable, and the integrity of a pressure boundary is effectively ensured.
The medium-voltage conductor is molded by adopting a mature continuous balanced extrusion process, the assembly clearance of each part is eliminated, the outer diameter size is uniform, the replacement is convenient, and the sealing performance of the medium-voltage conductor is ensured to be reliable; the part of the 2-path three-phase medium-voltage conductor exposed out of the end plate of the cylinder body is divided by 2 insulating support partition plates at one end, and the single ends are alternately distributed in a staggered mode in the axial direction. The electric insulation is ensured, and meanwhile, the connection of an external cable is facilitated.
The medium-voltage electric penetration piece provided by the embodiment of the invention has the advantages of simple structure, mature and feasible process and stable and reliable performance, and the engineering prototype passes the verification of various types of tests and can completely realize three key technical characteristics of the electric penetration piece: integrity of the pressure boundary, reliability of the seal, and excellent electrical performance.
The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only examples of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides a medium voltage electric penetration piece in monomer dilatation suitable for small heap which characterized in that includes:
the penetrating cylinder body is close to one end of the penetrating cylinder body, and the outer side of the penetrating cylinder body is used for penetrating a containment vessel of the small reactor and then is connected with the inner layer of the containment vessel; the outer side of the cylinder body of the through cylinder body, which is close to the other end of the through cylinder body, is used for penetrating out of a through hole in the outer layer of the containment vessel of the small reactor;
the first junction box assembly is positioned in the small pile and connected with one end of the penetrating cylinder;
the second junction box assembly is used for being positioned outside the small pile and connected with the other end penetrating through the barrel;
the medium-voltage conductor is arranged in the penetrating cylinder body, and two ends of the medium-voltage conductor respectively penetrate out of two ends in the penetrating cylinder body and are respectively connected with the first junction box assembly and the second junction box assembly; and
the grounding conductor is arranged in the through cylinder, and the two ends of the grounding conductor are respectively connected with the first junction box component and the second junction box component after being penetrated out from the two ends in the through cylinder.
2. The single expansion medium voltage electrical feedthrough for small stacks of claim 1, wherein a pressure monitoring assembly is attached to the feedthrough barrel.
3. The single-body dilatation medium-voltage electric penetration piece suitable for the small reactor as claimed in claim 2, wherein the outer side of the penetration cylinder body near one end of the penetration cylinder body is used for penetrating through the safety shell of the small reactor and then is welded with the inner layer of the safety shell; the first junction box component is detachably connected with one end penetrating through the cylinder body; the second junction box component is detachably connected with the other end penetrating through the barrel.
4. The single volume expansion medium voltage electrical penetration adapted for use with small stacks of claim 2, wherein the penetration barrel comprises:
the cylinder is used for penetrating the medium-voltage conductor and the grounding conductor; comprises an inner layer connecting section cylinder and an outer layer connecting section cylinder;
the inlayer linkage segment barrel is equipped with:
the transition sleeve is sleeved outside the inner-layer connecting section cylinder body and used for being welded with an embedded sleeve of a safety shell inner layer of the small reactor and welding a flange, the transition sleeve is sleeved outside the inner-layer connecting section cylinder body, and the transition sleeve is welded outside the inner-layer connecting section cylinder body through the welding flange.
5. The single volume expansion medium voltage electrical penetration assembly of claim 4, wherein the first and second junction box assemblies each comprise:
the junction box is detachably connected with one end, close to the junction box, of the inner-layer connecting section cylinder through an end plate;
and an end plate provided with a through hole for passing the medium voltage conductor and the ground conductor.
6. The single expanded medium voltage electrical feedthrough for a small stack of claim 5, wherein the via comprises:
a medium voltage conductor via for passing a medium voltage conductor;
a ground conductor via for passing a ground conductor;
the number of the grounding conductor through holes is one and is located at the center of the end plate, the number of the medium-voltage conductor through holes is a plurality, and the plurality of medium-voltage conductor through holes are uniformly distributed around the grounding conductor through holes in a circular shape by taking the center of the grounding conductor through hole as a circle center.
7. The single body expandable medium voltage electrical feedthrough for small stacks of claim 6, wherein the number of medium voltage conductors is 6, the number of medium voltage conductor vias is 6, and 6 medium voltage conductors constitute a 2-way three phase power path; the 2-path three-phase power supply paths are axially alternately distributed in a staggered manner and are separated by 2 insulating support partition plates.
8. The single, expanded medium voltage electrical feedthrough for a small stack of claim 1, wherein the medium voltage conductor comprises:
an oxygen-free copper conductor;
the insulating protective layer is coated outside the oxygen-free copper conductor; and
and the stainless steel outer sleeve is sleeved outside the insulating protective layer, and two ends of the stainless steel outer sleeve are connected with the insulating protective layer in a sealing manner through the sealing modules.
9. The single volume expanding medium voltage electrical penetration assembly according to claim 8, wherein said insulating protective layer is made of polyetheretherketone or polyimide; or the insulating protection layer is made of a composite insulating material consisting of a plurality of layers of heat-shrinkable tubes with hot melt adhesive or heat-shrinkable tubes without hot melt adhesive; the sealing module is made of single or multiple polymer materials such as polyether sulfone, polyether ether ketone, polyimide or polysulfone.
10. The single expanded medium voltage electrical feedthrough for a small stack of claim 8, wherein the medium voltage conductor is formed using a continuous isostatic extrusion process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211537049.1A CN115798747B (en) | 2022-12-02 | 2022-12-02 | Single-body capacity-expansion medium-voltage electric penetration piece suitable for small stacks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211537049.1A CN115798747B (en) | 2022-12-02 | 2022-12-02 | Single-body capacity-expansion medium-voltage electric penetration piece suitable for small stacks |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115798747A true CN115798747A (en) | 2023-03-14 |
| CN115798747B CN115798747B (en) | 2024-04-23 |
Family
ID=85444864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211537049.1A Active CN115798747B (en) | 2022-12-02 | 2022-12-02 | Single-body capacity-expansion medium-voltage electric penetration piece suitable for small stacks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115798747B (en) |
Citations (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4058671A (en) * | 1975-04-07 | 1977-11-15 | International Telephone And Telegraph Corporation | Electrical penetration assembly |
| JPS5364196A (en) * | 1976-09-27 | 1978-06-08 | Gen Electric | Assembly extending through container |
| US4235674A (en) * | 1977-12-01 | 1980-11-25 | Bunker Ramo Corporation | Pressurizer system for electric penetration assemblies |
| US4313030A (en) * | 1979-02-26 | 1982-01-26 | Bunker Ramo Corporation | Electrical penetration apparatus and method of making same |
| JPH0545488A (en) * | 1991-08-21 | 1993-02-23 | Mitsubishi Electric Corp | Module structure of electric wire passing through part |
| JPH05161235A (en) * | 1991-12-06 | 1993-06-25 | Mitsubishi Cable Ind Ltd | Wire penetration apparatus |
| JPH0638341A (en) * | 1992-07-20 | 1994-02-10 | Mitsubishi Electric Corp | Wire penetrating part module structure |
| JPH07239394A (en) * | 1994-02-28 | 1995-09-12 | Ryoden Kasei Co Ltd | Method for manufacturing hermetically sealed multi-pole terminal structural body |
| KR20030049133A (en) * | 2001-12-14 | 2003-06-25 | 평일산업 주식회사 | Electrical penetraition assemblies |
| CN200953254Y (en) * | 2006-09-21 | 2007-09-26 | 中国核动力研究设计院 | Reactor containment low-voltage electric penetrating piece |
| CN101430939A (en) * | 2008-12-08 | 2009-05-13 | 中国核动力研究设计院 | Electric penetration piece with radiation shielding structure |
| CN201918175U (en) * | 2010-11-19 | 2011-08-03 | 中国核动力研究设计院 | Electric penetrating piece for high-temperature gas cooled reactor primary circuit |
| CN202221661U (en) * | 2011-08-16 | 2012-05-16 | 中国核动力研究设计院 | Penetration reactor containment device for armored thermocouples |
| CN202384016U (en) * | 2012-01-13 | 2012-08-15 | 中国核动力研究设计院 | Cable-threading device used under ultralow-temperature environmental condition |
| CN202930053U (en) * | 2012-12-05 | 2013-05-08 | 中国核动力研究设计院 | Double-cylinder component-based electrical penetration assembly used for double-layer containment vessels |
| CN203118513U (en) * | 2013-03-26 | 2013-08-07 | 中国核动力研究设计院 | Shell and flange assembly type cable penetration equipment for double-wall containment of reactor |
| CN203118514U (en) * | 2013-03-26 | 2013-08-07 | 中国核动力研究设计院 | Shell and flange combined electrical penetration assembly for double-wall containment of reactor |
| JP2014007888A (en) * | 2012-06-26 | 2014-01-16 | Hitachi Cable Ltd | High-voltage wiring penetrating part, installation method of the same, and high-voltage wiring penetration structure |
| JP2014048229A (en) * | 2012-09-03 | 2014-03-17 | Hitachi Metals Ltd | High voltage electric wiring penetration part |
| CN209029113U (en) * | 2018-11-13 | 2019-06-25 | 中国核动力研究设计院 | Voltage electrical penetration piece in a kind of high temperature gas cooled reactor with thermal stabilization shield structure |
| JP2019221136A (en) * | 2019-08-07 | 2019-12-26 | 日立Ｇｅニュークリア・エナジー株式会社 | Electrical wiring penetration part structure |
| DE102020103873A1 (en) * | 2020-02-14 | 2021-08-19 | Schott Ag | Cable entry for radioactive environments |
| CN114388153A (en) * | 2021-12-27 | 2022-04-22 | 西安赛尔电子材料科技有限公司 | Glass-metal sealed electrical penetration assembly for pressurized water reactor containment |
| CN115148382A (en) * | 2022-06-30 | 2022-10-04 | 中国原子能科学研究院 | Electrical penetration for a pressure vessel, method of assembly |
-
2022
- 2022-12-02 CN CN202211537049.1A patent/CN115798747B/en active Active
Patent Citations (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4058671A (en) * | 1975-04-07 | 1977-11-15 | International Telephone And Telegraph Corporation | Electrical penetration assembly |
| JPS5364196A (en) * | 1976-09-27 | 1978-06-08 | Gen Electric | Assembly extending through container |
| US4235674A (en) * | 1977-12-01 | 1980-11-25 | Bunker Ramo Corporation | Pressurizer system for electric penetration assemblies |
| US4313030A (en) * | 1979-02-26 | 1982-01-26 | Bunker Ramo Corporation | Electrical penetration apparatus and method of making same |
| JPH0545488A (en) * | 1991-08-21 | 1993-02-23 | Mitsubishi Electric Corp | Module structure of electric wire passing through part |
| JPH05161235A (en) * | 1991-12-06 | 1993-06-25 | Mitsubishi Cable Ind Ltd | Wire penetration apparatus |
| JPH0638341A (en) * | 1992-07-20 | 1994-02-10 | Mitsubishi Electric Corp | Wire penetrating part module structure |
| JPH07239394A (en) * | 1994-02-28 | 1995-09-12 | Ryoden Kasei Co Ltd | Method for manufacturing hermetically sealed multi-pole terminal structural body |
| KR20030049133A (en) * | 2001-12-14 | 2003-06-25 | 평일산업 주식회사 | Electrical penetraition assemblies |
| CN200953254Y (en) * | 2006-09-21 | 2007-09-26 | 中国核动力研究设计院 | Reactor containment low-voltage electric penetrating piece |
| CN101430939A (en) * | 2008-12-08 | 2009-05-13 | 中国核动力研究设计院 | Electric penetration piece with radiation shielding structure |
| CN201918175U (en) * | 2010-11-19 | 2011-08-03 | 中国核动力研究设计院 | Electric penetrating piece for high-temperature gas cooled reactor primary circuit |
| CN202221661U (en) * | 2011-08-16 | 2012-05-16 | 中国核动力研究设计院 | Penetration reactor containment device for armored thermocouples |
| CN202384016U (en) * | 2012-01-13 | 2012-08-15 | 中国核动力研究设计院 | Cable-threading device used under ultralow-temperature environmental condition |
| JP2014007888A (en) * | 2012-06-26 | 2014-01-16 | Hitachi Cable Ltd | High-voltage wiring penetrating part, installation method of the same, and high-voltage wiring penetration structure |
| JP2014048229A (en) * | 2012-09-03 | 2014-03-17 | Hitachi Metals Ltd | High voltage electric wiring penetration part |
| CN202930053U (en) * | 2012-12-05 | 2013-05-08 | 中国核动力研究设计院 | Double-cylinder component-based electrical penetration assembly used for double-layer containment vessels |
| CN203118513U (en) * | 2013-03-26 | 2013-08-07 | 中国核动力研究设计院 | Shell and flange assembly type cable penetration equipment for double-wall containment of reactor |
| CN203118514U (en) * | 2013-03-26 | 2013-08-07 | 中国核动力研究设计院 | Shell and flange combined electrical penetration assembly for double-wall containment of reactor |
| CN209029113U (en) * | 2018-11-13 | 2019-06-25 | 中国核动力研究设计院 | Voltage electrical penetration piece in a kind of high temperature gas cooled reactor with thermal stabilization shield structure |
| JP2019221136A (en) * | 2019-08-07 | 2019-12-26 | 日立Ｇｅニュークリア・エナジー株式会社 | Electrical wiring penetration part structure |
| DE102020103873A1 (en) * | 2020-02-14 | 2021-08-19 | Schott Ag | Cable entry for radioactive environments |
| CN114388153A (en) * | 2021-12-27 | 2022-04-22 | 西安赛尔电子材料科技有限公司 | Glass-metal sealed electrical penetration assembly for pressurized water reactor containment |
| CN115148382A (en) * | 2022-06-30 | 2022-10-04 | 中国原子能科学研究院 | Electrical penetration for a pressure vessel, method of assembly |
Non-Patent Citations (4)
| Title |
|---|
| GUANGJIN WANG: "DEVELOPMENT OF CONDUCTOR FEEDTHROUGH MODULE OF LV ELECTRICAL PENETRATION ASSEMBLY FOR RESEARCH REACTORS", NUCLEAR POWER ENGINEERING, vol. 28, no. 2, 15 April 2007 (2007-04-15) * |
| YUAN ZHOU: "DEVELOPMENT OF FEEDTHROUGH ASSEMBLY FOR ELECTRICAL PENETRATION ASSENBLY BASED ON THIRD-GENERATION NUCLEAR POWER TECHNOLOGY", NUCLEAR POWER ENGINEERING, vol. 40, no. 4, 31 August 2019 (2019-08-31) * |
| 周惠忠, 向林, 洪玉生: "HTR-10高温气冷堆一回路电气贯穿件的研制", 高技术通讯, no. 01, 28 January 2005 (2005-01-28) * |
| 陈贵仁;宋良军: "电气贯穿件密封性能试验及安装质量控制", 科技创新导报, no. 002, 31 December 2015 (2015-12-31) * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115798747B (en) | 2024-04-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204290748U (en) | Modular electrical Source Con-verters frame and insulator arrangement | |
| CN201936949U (en) | Battery | |
| CN204966723U (en) | Rib electric wire and head organ | |
| CN201994137U (en) | High-temperature superconducting cable | |
| CN115798747A (en) | Monomer dilatation middling pressure electric penetration piece suitable for heap | |
| CN205921026U (en) | Battery module | |
| CN102306712A (en) | Cylinder battery | |
| CN209401373U (en) | A kind of modified power cable | |
| CN116453745A (en) | Wisdom energy's power cable | |
| CN102117679A (en) | Shielding layer material of high-temperature super-conductive cable and knitting method thereof | |
| CN106098993A (en) | A kind of battery case | |
| CN204632389U (en) | High altitude localities cold-resistant signal cable | |
| CN202586126U (en) | Modular maritime booster station | |
| Sharkey et al. | Investigation of wave farm electrical network configurations | |
| CN203722170U (en) | High voltage bus | |
| CN101672884B (en) | Portable cable fault detection high-voltage capacitor | |
| CN103825233A (en) | High-voltage bus and method for improving current-carrying capability of high-voltage bus | |
| CN111653970A (en) | Offshore booster station and offshore wind farm | |
| CN203026898U (en) | Rapid cable connecting and sealing device | |
| CN202384016U (en) | Cable-threading device used under ultralow-temperature environmental condition | |
| CN201450071U (en) | Lithium-ion power battery | |
| CN205354709U (en) | High temperature resistant control cable | |
| CN208548160U (en) | It is a kind of to can adapt to adverse circumstances and use safe cable for nuclear power station | |
| CN211508450U (en) | Quick interfacing apparatus of high-pressure line | |
| CN218351586U (en) | Battery cell grouping structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |