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AR095871A1 - UPPER NOZZLE FOR NUCLEAR FUEL APPLIANCE - Google Patents

UPPER NOZZLE FOR NUCLEAR FUEL APPLIANCE

Info

Publication number
AR095871A1
AR095871A1 ARP140101608A ARP140101608A AR095871A1 AR 095871 A1 AR095871 A1 AR 095871A1 AR P140101608 A ARP140101608 A AR P140101608A AR P140101608 A ARP140101608 A AR P140101608A AR 095871 A1 AR095871 A1 AR 095871A1
Authority
AR
Argentina
Prior art keywords
holes
connection plate
drainage
connection
installation
Prior art date
Application number
ARP140101608A
Other languages
Spanish (es)
Inventor
Lin Zhang
Yongjun Jiao
Zengping Pu
Chunlan Huang
Tao Lei
Zhong Xiao
Jun Ru
Huayang Cheng
Tao Qing
Jing Yong
Original Assignee
Nuclear Power Inst China
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nuclear Power Inst China filed Critical Nuclear Power Inst China
Publication of AR095871A1 publication Critical patent/AR095871A1/en

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
    • G21C3/30—Assemblies of a number of fuel elements in the form of a rigid unit
    • G21C3/32—Bundles of parallel pin-, rod-, or tube-shaped fuel elements
    • G21C3/322—Means to influence the coolant flow through or around the bundles
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
    • G21C3/30—Assemblies of a number of fuel elements in the form of a rigid unit
    • G21C3/32—Bundles of parallel pin-, rod-, or tube-shaped fuel elements
    • G21C3/33—Supporting or hanging of elements in the bundle; Means forming part of the bundle for inserting it into, or removing it from, the core; Means for coupling adjacent bundles
    • G21C3/3315—Upper nozzle
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Pipe Accessories (AREA)
  • Fuel Cell (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)

Abstract

La boquilla superior (1) está destinada a formar parte de una instalación de combustible nuclear mejorando la distribución de flujo en la salida del aparato o parrilla de combustible. La boquilla consiste de una placa de conexión (2) con orificios conectores (5) para instalación de tubos de guía, otro orificio conector (6) para instalación de una línea instrumental y múltiples orificios alargados de drenaje consistentes en dos juegos distintos de orificios de drenaje (201 y 202) entre los cuales hay un ángulo mayor que cero grado. Se forman puentes de conexión (203) entre orificios de drenaje de ambos juegos adyacentes axialmente en la placa de conexión y regiones circundadas (204) en la placa de conexión, cada una con dos orificios de drenaje de un juego y dos del otro, adyacentes transversalmente, y orificios de drenaje centrales (205), además, de los orificios de conexión. La distinción entre dos juegos de orificios de drenaje que no son paralelos entre sí sino que se diferencian por su disposición cruzada logra no solo una disposición apropiada de los orificios de conexión sino, principalmente, una disposición más uniforme de los orificios de drenaje aumentando el área total de flujo, permitiendo disponer tantos orificios de drenaje como sea posible para aumentar la proporción del área de drenaje en la placa de conexión, reduciendo la caída de presión entre puntos altos y bajos de la placa de conexión de modo que todos los sitios de la placa de conexión poseen el mismo flujo de salida, mejorando la distribución del campo de flujo de salida y evitando flujos laterales.The upper nozzle (1) is intended to be part of a nuclear fuel installation by improving the flow distribution at the outlet of the apparatus or fuel grill. The nozzle consists of a connection plate (2) with connecting holes (5) for installation of guide tubes, another connecting hole (6) for installation of an instrumental line and multiple elongated drainage holes consisting of two different sets of holes. drainage (201 and 202) between which there is an angle greater than zero degree. Connection bridges (203) are formed between drainage holes of both axially adjacent sets in the connection plate and surrounding regions (204) in the connection plate, each with two drain holes of one set and two of the other, adjacent transversely, and central drain holes (205), in addition, of the connection holes. The distinction between two sets of drain holes that are not parallel to each other but differ in their cross-arrangement achieves not only an appropriate arrangement of the connection holes but, mainly, a more uniform arrangement of the drain holes by increasing the area total flow, allowing as many drainage holes as possible to increase the proportion of the drainage area in the connection plate, reducing the pressure drop between high and low points of the connection plate so that all the sites of the Connection plate have the same output flow, improving the distribution of the output flow field and avoiding lateral flows.

ARP140101608A 2013-04-24 2014-04-15 UPPER NOZZLE FOR NUCLEAR FUEL APPLIANCE AR095871A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013101441990A CN103247352A (en) 2013-04-24 2013-04-24 Upper pipe seat of fuel component

Publications (1)

Publication Number Publication Date
AR095871A1 true AR095871A1 (en) 2015-11-18

Family

ID=48926821

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP140101608A AR095871A1 (en) 2013-04-24 2014-04-15 UPPER NOZZLE FOR NUCLEAR FUEL APPLIANCE

Country Status (5)

Country Link
CN (3) CN103247352A (en)
AR (1) AR095871A1 (en)
GB (1) GB2524456B (en)
WO (1) WO2014173139A1 (en)
ZA (1) ZA201505858B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103247353A (en) * 2013-04-24 2013-08-14 中国核动力研究设计院 Upper pipe base of reactor fuel assembly
CN103247352A (en) * 2013-04-24 2013-08-14 中国核动力研究设计院 Upper pipe seat of fuel component
CN106935281A (en) * 2015-12-31 2017-07-07 中核建中核燃料元件有限公司 A kind of upper pipe seat of fuel component
CN113223737B (en) * 2021-04-01 2024-06-18 上海核工程研究设计院股份有限公司 Upper tube seat of low-pressure drop water reactor fuel assembly

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3801453A (en) * 1972-02-11 1974-04-02 Transfer Systems Fuel assembly for power generating nuclear reactor
US4427624A (en) * 1981-03-02 1984-01-24 Westinghouse Electric Corp. Composite nozzle design for reactor fuel assembly
US4716016A (en) * 1985-03-04 1987-12-29 Westinghouse Electric Corp. Universal fuel assembly construction for a nuclear reactor
US5019016A (en) * 1990-04-10 1991-05-28 Gkn Automotive Inc. Anti-shudder tripod constant velocity universal joint
US5363423A (en) * 1993-08-19 1994-11-08 Westinghouse Electric Corporation Quick release top nozzle assembly
FR2744556B1 (en) * 1996-02-02 1998-04-24 Framatome Sa NUCLEAR FUEL ASSEMBLY HAVING IMPROVED TOP TIP
US7889829B2 (en) * 2004-09-02 2011-02-15 Westinghouse Electric Company Llc Nuclear fuel assembly protective grid
CN201927363U (en) * 2011-01-14 2011-08-10 中科华核电技术研究院有限公司 Top tube seat for low pressure drop fuel assembly
CN102592687A (en) * 2011-01-14 2012-07-18 中科华核电技术研究院有限公司 Low-pressure-drop fuel assembly upper tube seat
CN202650554U (en) * 2012-07-17 2013-01-02 中国核动力研究设计院 Nuclear fuel component upper-pipe seat convenient to process and manufacture
CN202855315U (en) * 2012-09-18 2013-04-03 中科华核电技术研究院有限公司 Lower tube base and bottom device of light-water-reactor nuclear fuel assembly
CN103247352A (en) * 2013-04-24 2013-08-14 中国核动力研究设计院 Upper pipe seat of fuel component

Also Published As

Publication number Publication date
CN103413576B (en) 2016-03-30
ZA201505858B (en) 2018-11-28
GB2524456A (en) 2015-09-23
GB2524456B (en) 2020-01-29
GB201513652D0 (en) 2015-09-16
CN103413576A (en) 2013-11-27
WO2014173139A1 (en) 2014-10-30
CN103247352A (en) 2013-08-14
CN203376983U (en) 2014-01-01

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