CN115050492A - Steam generator hydroecium head and visual test piece of main pump case integration - Google Patents

Steam generator hydroecium head and visual test piece of main pump case integration Download PDF

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Publication number
CN115050492A
CN115050492A CN202210493476.8A CN202210493476A CN115050492A CN 115050492 A CN115050492 A CN 115050492A CN 202210493476 A CN202210493476 A CN 202210493476A CN 115050492 A CN115050492 A CN 115050492A
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CN
China
Prior art keywords
piece
water chamber
chamber end
end socket
annular cavity
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Granted
Application number
CN202210493476.8A
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Chinese (zh)
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CN115050492B (en
Inventor
黄�俊
陈俨
张伟
林绍萱
巢孟科
钟云
陈银辉
尤岩
张兴
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Nuclear Engineering Research and Design Institute Co Ltd
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Shanghai Nuclear Engineering Research and Design Institute Co Ltd
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Application filed by Shanghai Nuclear Engineering Research and Design Institute Co Ltd filed Critical Shanghai Nuclear Engineering Research and Design Institute Co Ltd
Priority to CN202210493476.8A priority Critical patent/CN115050492B/en
Priority claimed from CN202210493476.8A external-priority patent/CN115050492B/en
Publication of CN115050492A publication Critical patent/CN115050492A/en
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Publication of CN115050492B publication Critical patent/CN115050492B/en
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    • GPHYSICS
    • G21NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21CNUCLEAR REACTORS
    • G21C17/00Monitoring; Testing ; Maintaining
    • G21C17/001Mechanical simulators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00Component parts or details of steam boilers
    • F22B37/002Component parts or details of steam boilers specially adapted for nuclear steam generators, e.g. maintenance, repairing or inspecting equipment not otherwise provided for
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00Energy generation of nuclear origin
    • Y02E30/30Nuclear fission reactors

Abstract

The invention discloses a steam generator water chamber end socket and main pump shell integrated visual test piece, which comprises a supporting piece, wherein a pump shell cavity is arranged on the supporting piece, a first water chamber end socket simulation piece is glued with the top of the pump shell cavity, the outlet of the first water chamber end socket simulation piece is communicated with the pump shell cavity, the main pump outlet of the pump shell cavity is connected with a shrinking section, the outlet of the shrinking section is communicated with the inlet of a first annular cavity simulation piece, the outlet of the first annular cavity simulation piece is communicated with the inlet of a second annular cavity simulation piece through a rack pipeline, the outlet of the second annular cavity simulation piece is communicated with the inlet of a second water chamber end socket simulation piece, and the second water chamber end socket simulation piece is connected with the first water chamber end socket simulation piece through a U-shaped pipe bundle; the first water chamber end enclosure simulation piece, the contraction section and the second water chamber end enclosure simulation piece are made of transparent materials, so that the coolant in a water energy simulation product in a loop circularly flows, and measurement and analysis of a biplane orthogonal PIV flow field are realized.

Description

Steam generator hydroecium head and main pump case integration visual test piece
Technical Field
The invention belongs to the field of steam generators of nuclear reactors, and particularly relates to a steam generator of a small modular reactor.
Background
The small modular reactors are in a compact arrangement. The compact arrangement is that on the basis of the dispersed arrangement, pipelines among the devices are eliminated, the devices are directly connected through inlet and outlet nozzles, and the arrangement of the reactor devices is compact, so that the arrangement space required by the system is saved. Because a large-size connecting pipeline between the devices is cancelled, the possibility of large-break water loss accidents is reduced, and the safety of the reactor is improved. Because the steam generator water chamber end socket and the main pump shell are of an integrated structure, the main pump hydraulic component is directly inserted into the integrated end socket structure, and the main pump is strongly coupled with the internal flow field of the steam generator water chamber end socket.
In order to develop a hydraulic characteristic (including measurement) test research of a water chamber end socket and a main pump shell integrated structure, a test piece is required to be designed to simulate actual coolant flow, and the test piece in the aspect is not available in the prior art at present.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a steam generator water chamber end socket and main pump shell integrated visual test piece.
In order to realize the purpose, the invention is realized by the following technical scheme:
in a first aspect, an embodiment of the invention provides a visual testing piece for integration of a water chamber head of a steam generator and a pump shell of a main pump, which comprises a supporting piece, a pump shell cavity is arranged on the supporting piece, a first water chamber head simulating piece is glued with the top of the pump shell cavity, an outlet of the first water chamber head simulating piece is communicated with an inner cavity of the pump shell cavity, a main pump outlet of the pump shell cavity is connected with a shrinking section, an outlet of the shrinking section is communicated with an inlet of a first annular cavity simulating piece, an outlet of the first annular cavity simulating piece is arranged at the bottom of the first annular cavity simulating piece, an outlet of the first annular cavity simulating piece is communicated with an inlet of a second annular cavity simulating piece through a rack pipeline, an outlet of the second annular cavity simulating piece is communicated with an inlet of a second water chamber head simulating piece, a first tube plate simulating piece is arranged at the outlet of the second water chamber head simulating piece, the first tube plate simulating piece is connected with one end of a U-shaped tube bundle, the other end of the U-shaped tube bundle is connected with the second tube plate simulation piece; the second tube plate simulation piece is arranged at an inlet of the first water chamber end socket simulation piece; the first water chamber end socket simulation piece, the contraction section and the second water chamber end socket simulation piece are made of transparent materials; and PIV flow field measuring devices are arranged on the outer sides of the first water chamber end socket simulation piece, the shrinking section and the second water chamber end socket simulation piece.
As a further technical scheme, the first water chamber end socket simulation piece is made of an acrylic material.
As a further technical scheme, the shrinking section is made of an acrylic material;
as a further technical scheme, the second water chamber end socket simulation piece is made of an acrylic material.
As a further technical scheme, the pump shell cavity, the first annular cavity simulation part and the second annular cavity simulation part are made of plastic materials.
As a further technical scheme, the radiuses of two ends of the contraction section are different in size, and the radius of the inlet end of the contraction section is larger than that of the outlet end of the contraction section according to the water flow direction.
As a further technical scheme, the pump shell cavity, the first annular cavity simulation piece and the second annular cavity simulation piece are made of plastic materials.
As a further technical scheme, the supporting piece, the rack pipeline, the U-shaped tube bundle, the first tube plate simulation piece and the second tube plate simulation piece are made of metal materials.
As a further technical scheme, the radiuses of two ends of the contraction section are different in size, and the radius of the inlet end of the contraction section is larger than that of the outlet end of the contraction section according to the water flow direction.
As a further technical scheme, a rack pipeline is installed at the bottom of the supporting piece, one end of the rack pipeline is communicated with an outlet of the first annular cavity simulation piece, and the other end of the rack pipeline is communicated with an inlet of the second annular cavity simulation piece.
As a further technical scheme, the inlet of the second annular cavity simulating piece is arranged at the bottom of the second annular cavity simulating piece, and the outlet of the second annular cavity simulating piece is arranged on the side surface of the second annular cavity simulating piece; the inlet of the first annular cavity simulating piece is arranged on the side surface of the first annular cavity simulating piece, and the outlet of the first annular cavity simulating piece is arranged on the bottom of the first annular cavity simulating piece.
The embodiment of the invention has the following beneficial effects:
the invention provides a steam generator water chamber end socket and main pump shell integrated visual test piece which is suitable for a small modular compact reactor arrangement scheme; the integral water chamber end socket forging is divided into two simulation pieces and placed in a closed circulation loop, so that water in the loop can simulate the circulating flow of coolant in a product, and the measurement and analysis of a biplane orthogonal PIV flow field are realized.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are included to illustrate an exemplary embodiment of the invention and not to limit the invention.
FIG. 1 is a schematic diagram of a half-section state of a prototype product with an integrated water chamber end enclosure and pump shell structure;
FIG. 2 is a schematic diagram of the internal structure section and water circuit of the test piece of the present invention;
in the figure: the spacing or dimensions between each other are exaggerated to show the location of the various parts, and the illustration is for illustrative purposes only.
The water chamber comprises a water chamber end enclosure shell 1, a water chamber partition plate 2, a flow guide plate 3, a tube supporting plate 4, a tube plate simulation piece 5, a first water chamber end enclosure simulation piece 6, a main pump suction inlet 7, a pump shell chamber 8, a main pump outlet 9, a section steel bearing 10, a rack pipeline 11, a second annular cavity simulation piece 12, a tube plate simulation piece 13, a tube supporting plate 14, a U-shaped tube bundle 15, a vibration-proof strip 16, a contraction section 17, a second water chamber end enclosure simulation piece 18 and a first annular cavity simulation piece 19.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, unless the invention expressly state otherwise, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;
for convenience of description, the words "up", "down", "left" and "right" in the present invention, if any, merely indicate correspondence with the directions of up, down, left and right of the drawings themselves, and do not limit the structure, but merely facilitate the description of the invention and simplify the description, rather than indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention. As described in the background art, the defects in the prior art are that in order to solve the technical problems, the invention provides a visual test piece for an integrated structure of a water chamber end socket and a main pump shell.
In a typical embodiment of the invention, the embodiment provides a visual test piece of an integrated structure of a water chamber end socket and a main pump shell, wherein the water chamber end socket and a reactor annular cavity structure of an integral steam generator are respectively split into two test piece simulations;
fig. 1 is a schematic diagram of a prototype product of an integrated structure of a water chamber end socket and a pump case of a water chamber, in fig. 1, the prototype product of the water chamber end socket and the pump case of the water chamber is an integrated part, and a partition plate, a guide plate and the like are arranged in the prototype product. In order to realize the biplane orthogonal PIV measurement of the steam generator water chamber end socket integrated structure coupling flow field, a visual test piece is designed in the embodiment.
Fig. 2 is a schematic view of a flow process of a visual test piece and a water loop provided in this embodiment, where the test piece includes a plurality of independent test pieces, specifically, a tube plate simulation piece 5, a first water chamber head simulation piece 6, a main pump suction port 7, a pump housing chamber 8, a main pump outlet 9, a profile steel support 10, a rack pipe 11, a second annular cavity simulation piece 12, a tube plate simulation piece 13, a tube support plate 14, a U-shaped tube bundle 15, a vibration-proof strip 16, a tightening section 17, a second water chamber head simulation piece 18, and a first annular cavity simulation piece 19;
the forming materials of the first water chamber end enclosure simulation piece 6, the contraction section 17 and the second water chamber end enclosure simulation piece 18 are all made of transparent acrylic materials; therefore, the positions where the PIV measurement needs to be carried out are the first water chamber end socket simulation piece 6, the necking section 17 and the second water chamber end socket simulation piece 18, and therefore the part is made of acrylic materials.
The pump casing chamber 8, the second annular chamber simulator 12, the first annular chamber simulator 19 and the molding material are all molded from teflon or other plastic materials, such as ABS plastic materials.
The forming materials of the rack pipeline 11, the U-shaped tube bundle 15, the tube plate simulation piece 5, the tube plate simulation piece 13 and the profile steel support 10 adopt carbon steel and stainless steel;
the connection relationship of the above components is as follows:
the pump shell cavity 8 is arranged on the section steel support, the first water chamber end enclosure simulating piece 6 is glued with the top of the pump shell cavity 8 and is positioned at the position of a main pump suction inlet 7, the inner cavity of the first water chamber end enclosure simulating piece 6 is communicated with the inner cavity of the pump shell cavity 8, the position of a main pump outlet 9 of the pump shell cavity 8 is connected with a shrinking section 17, the outlet of the shrinking section 17 is communicated with the inlet of a first annular cavity simulating piece 19, the outlet of the first annular cavity simulating piece 19 is positioned at the bottom, a rack pipeline 11 is arranged at the bottom of the section steel support, one end of the rack pipeline 11 is communicated with the outlet of the first annular cavity simulating piece 19, the other end of the rack pipeline 11 is communicated with the inlet of a second annular cavity simulating piece 12, the outlet of the second annular cavity simulating piece 12 is communicated with the inlet of a second water chamber end enclosure simulating piece 18, a tube plate simulating piece 13 is arranged at the outlet of the second water chamber end enclosure simulating piece 18, the tube plate simulating piece 13 is connected with one end of a U-shaped tube bundle 15, the other end of the U-shaped tube bundle 15 is connected with the tube plate simulation part 2; the tube plate simulation piece 2 is arranged at an inlet of the first water chamber end socket simulation piece 6; and PIV flow field measuring devices are arranged on the outer sides of the first water chamber end enclosure simulating piece, the shrinking section and the second water chamber end enclosure simulating piece.
Further, the above-mentioned PIV flow field measuring device is an existing device, and is not described in detail herein.
Further, the radii of the two ends of the above-mentioned contracting section 17 are different in size, and the radius of the inlet end is larger than that of the outlet end according to the water flow direction.
Further, the inlet of the second annular chamber simulator 12 is at the bottom and the outlet is at the side; the inlet of the first ring chamber simulator 19 is at its side and the outlet at its bottom, and the second ring chamber simulator 12 is also different in structure from the first ring chamber simulator 19.
Further, the structures of the first water chamber end socket simulation piece 6 and the second water chamber end socket simulation piece 18 are the same as the internal structure of the existing prototype product.
The specific working process is as follows:
the flow of water pressurized by the main pump in the pump housing chamber 8 enters the first annulus simulation 19 through the main pump outlet 9, then flows downwardly through the gantry line 11 and back upwardly into the second annulus simulation 12. Then through the inlet nozzle into the second water chamber head simulator 13, up into the U-shaped tube bundle 15, down into the first water chamber head simulator 6, and into the pump housing chamber 8 completing one cycle.
The fluid entering the first water chamber head simulator 6 is accelerated under the action of the main pump and enters the loop from the necking section 17, and the flow has strong three-dimensionality under the action of the main pump at a position close to the inlet and the outlet of the main pump, and local separation flow and strong secondary flow can exist. At the same time, similar flow phenomena also exist for flows in the main pump, subject to non-uniformity of inlet flow. The traditional computational fluid mechanics method has larger errors in predicting the flow phenomena, so that the correction of a computational flow field needs to be carried out by combining experimental measurement so as to realize accurate prediction of the hydraulic characteristics of the whole direct-connected structure. The flow field PIV measurement in this embodiment is performed in the inlet section (corresponding to the first header simulation member described above), the outlet section (corresponding to the neck section 17 described above) and the second header simulation member of the main pump.
This embodiment has provided a hydroecium head and the visual test piece of main pump case integral structure, and the process that the test piece was made and is combined together by multiple material processing assembly realizes, can adopt following step to go on:
1) the first water chamber end enclosure simulation piece 6, the contraction section 17 and the second water chamber end enclosure simulation piece 18 are made of transparent acrylic materials, are manufactured in blocks by an acrylic processing factory and are bonded by glue;
2) the chamber of the hydraulic component with the direct connection structure, the first ring cavity simulation piece, the second ring cavity simulation piece and other parts irrelevant to PIV measurement are made of ABS materials, and are manufactured in blocks by an acrylic processing plant and are bonded by glue;
3) the parts made of the acrylic materials and the parts made of the ABS materials are assembled by an acrylic processing plant in a mode of bolt connection and additional glue bonding through metal embedded parts, and a pressure-resistant test is carried out;
4) the U-shaped tube bundle, the tube plate simulation piece, the rack pipeline and other metal parts are manufactured, processed, welded and assembled by a pressure vessel processing factory, and a pressure test is completed;
5) after the external cooperation processing is finished, all the parts are transported to a test site, and are connected into an integral test piece pressure-bearing loop through welding and bolts to perform a pressure-resistant test.
Finally, it is also noted that relational terms such as first and second, and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
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 steam generator water chamber end socket and a main pump shell integrated visual test piece is characterized by comprising a supporting piece, a pump shell cavity is arranged on the bearing piece, the first water chamber end enclosure simulation piece is glued with the top of the pump shell cavity, an outlet of the first water chamber end socket simulation piece is communicated with an inner cavity of the pump shell cavity, a main pump outlet of the pump shell cavity is connected with a contraction section, an outlet of the contraction section is communicated with an inlet of the first annular cavity simulation piece, an outlet of the first annular cavity simulation piece is positioned at the bottom of the first annular cavity simulation piece, an outlet of the first annular cavity simulation piece is communicated with an inlet of the second annular cavity simulation piece through a rack pipeline, an outlet of the second annular cavity simulation piece is communicated with an inlet of the second water chamber end socket simulation piece, a first tube plate simulation piece is installed at an outlet of the second water chamber end socket simulation piece, the first tube plate simulation piece is connected with one end of the U-shaped tube bundle, and the other end of the U-shaped tube bundle is connected with the second tube plate simulation piece; the second tube plate simulation piece is arranged at an inlet of the first water chamber end socket simulation piece; the first water chamber end socket simulation piece, the contraction section and the second water chamber end socket simulation piece are made of transparent materials.
2. The visual testing piece for integration of the water chamber end socket of the steam generator and the pump shell of the main pump according to claim 1, wherein the first water chamber end socket simulation piece is made of acrylic materials.
3. The visualization test piece for the integration of the water chamber end socket of the steam generator and the pump shell of the main pump according to claim 1, wherein the tightening section is made of acrylic material.
4. The steam generator water chamber end socket and main pump shell integrated visual test piece of claim 1, wherein the second water chamber end socket simulation piece is made of acrylic materials.
5. The steam generator water chamber end socket and main pump shell integrated visual test piece of claim 1, wherein a PIV flow field measuring device is arranged on the outer sides of the first water chamber end socket simulating piece, the shrinking section and the second water chamber end socket simulating piece.
6. The visualization test piece for the integration of the water chamber end socket of the steam generator and the pump shell of the main pump according to claim 1, wherein the pump shell cavity, the first annular cavity simulation piece and the second annular cavity simulation piece are made of plastic.
7. The steam generator water chamber head and main pump shell integrated visualization test piece of claim 1, wherein the support piece, the rack pipe, the U-shaped tube bundle, the first tube plate simulation piece and the second tube plate simulation piece are made of metal.
8. The visual testing piece for integration of the water chamber end socket of the steam generator and the pump shell of the main pump according to claim 1, wherein the radiuses of the two ends of the tightening section are different in size, and the radius of the inlet end of the tightening section is larger than that of the outlet end of the tightening section according to the water flow direction.
9. The visual testing piece for the integration of the water chamber end socket of the steam generator and the pump shell of the main pump according to claim 1, wherein a rack pipeline is installed at the bottom of the supporting piece, one end of the rack pipeline is communicated with an outlet of the first annular cavity simulator, and the other end of the rack pipeline is communicated with an inlet of the second annular cavity simulator.
10. The visualization test piece for the integration of the water chamber head of the steam generator and the pump shell of the main pump according to claim 1, wherein the inlet of the second annular cavity simulator is arranged at the bottom of the second annular cavity simulator, and the outlet of the second annular cavity simulator is arranged on the side surface of the second annular cavity simulator; the inlet of the first annular cavity simulating piece is arranged on the side surface of the first annular cavity simulating piece, and the outlet of the first annular cavity simulating piece is arranged on the bottom of the first annular cavity simulating piece.
CN202210493476.8A 2022-05-07 Visual test piece of steam generator hydroecium head and main pump case integration Active CN115050492B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210493476.8A CN115050492B (en) 2022-05-07 Visual test piece of steam generator hydroecium head and main pump case integration

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210493476.8A CN115050492B (en) 2022-05-07 Visual test piece of steam generator hydroecium head and main pump case integration

Publications (2)

Publication Number Publication Date
CN115050492A true CN115050492A (en) 2022-09-13
CN115050492B CN115050492B (en) 2024-05-10

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB973988A (en) * 1962-05-08 1964-11-04 Combustion Eng Vapor generator
JP2013029316A (en) * 2011-07-26 2013-02-07 Toshiba Corp Steam generator
CN105913882A (en) * 2016-07-05 2016-08-31 上海核工程研究设计院 Water chamber seal head cavity structure of steam generator
CN109540565A (en) * 2018-12-28 2019-03-29 核动力运行研究所 A kind of steam generator thermal-hydraulic performance test simulation body
CN209624087U (en) * 2019-04-19 2019-11-12 中国人民解放军海军工程大学 Steam generator analogue body experimental rig
CN112098131A (en) * 2020-09-15 2020-12-18 上海交通大学 Steam generator simulation device for simulating non-uniform incoming flow of nuclear main pump inlet

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB973988A (en) * 1962-05-08 1964-11-04 Combustion Eng Vapor generator
JP2013029316A (en) * 2011-07-26 2013-02-07 Toshiba Corp Steam generator
CN105913882A (en) * 2016-07-05 2016-08-31 上海核工程研究设计院 Water chamber seal head cavity structure of steam generator
CN109540565A (en) * 2018-12-28 2019-03-29 核动力运行研究所 A kind of steam generator thermal-hydraulic performance test simulation body
CN209624087U (en) * 2019-04-19 2019-11-12 中国人民解放军海军工程大学 Steam generator analogue body experimental rig
CN112098131A (en) * 2020-09-15 2020-12-18 上海交通大学 Steam generator simulation device for simulating non-uniform incoming flow of nuclear main pump inlet

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