公开(公告)号：US3861999A

公开(公告)日：1975-01-21

申请号：US77555868

申请日：1968-11-13

Applicant: COMBUSTION ENG

Inventor： ZMOLA PAUL C ,  RICKERT ROYCE J

IPC: G21C1/08 ,  G21C3/328 ,  G21C7/08 ,  G21C15/02

CPC classification number: G21C1/08 ,  G21C3/328 ,  G21C7/08 ,  G21C15/02 ,  G21Y2002/201 ,  G21Y2004/30 ,  G21Y2004/302 ,  Y02E30/38 ,  Y02E30/39

Abstract: A nuclear reactor cooled by a moderating fluid and a method of operating such a reactor wherein a portion of the coolant directed through the reactor and over the fuel elements is conveyed in bypass relation with the first portion of the reactor core such that it maintains generally its initial or entering temperature. This bypassed portion is then introduced at spaced intervals into regions of high power density so as to decrease the enthalpy of the coolant at these regions and thereby improve the margin to burnout and, accordingly, improve the power generation capability of the reactor. Flow management is obtained in an open core by regulating the bypassed portion of the coolant in a manner such that hotter core regions receive a greater proportion of the total flow than colder core regions thereby further improving the thermal margin and accordingly the power generating capability of the reactor.

Abstract translation: 通过调节流体冷却的核反应堆和操作这种反应器的方法，其中引导通过反应器和燃料元件的冷却剂的一部分与反应堆堆芯的第一部分以旁路的方式输送，使得其通常维持在 初始或进入温度。 然后将该旁路部分以间隔的间隔引入高功率密度的区域，以便降低这些区域处的冷却剂的焓，从而提高燃尽的余量，从而提高反应器的发电能力。

公开(公告)号：US3683866A

公开(公告)日：1972-08-15

申请号：US3683866D

申请日：1970-11-20

Applicant: COMBUSTION ENG

Inventor： ZMOLA PAUL C

IPC: F22B1/02 ,  F22B1/06

CPC classification number: F22B1/026

Abstract: Described herein is a shell and tube vapor generator in which vaporizable liquid is evaporated and superheated within the same vessel. Downflow and upflow passages are provided for conducting the vaporizable liquid in heat exchange relation with the heating medium that is conducted through the tubes. The downflow passages into which subcooled feedwater is introduced are defined by a plurality of mutually spaced conduits disposed between the shell wall and the tube bundle. The arrangement permits the shell wall to be wetted by liquid at substantially saturated temperature throughout the evaporation region of the chamber thus to reduce the stresses within the tube material caused by thermal loading.

Abstract translation: 本文描述了一种壳和管蒸汽发生器，其中可蒸发的液体在同一容器内蒸发并过热。 提供下流和上流通道，用于与通过管传导的加热介质以可热交换的液体进行热交换。 通过设置在壳壁和管束之间的多个相互间隔的导管限定引入过冷给水的下流通道。 该布置允许壳体在整个蒸发区域的基本饱和温度下被液体润湿，从而减少由热负荷引起的管材料内的应力。

公开(公告)号：US3576178A

公开(公告)日：1971-04-27

申请号：US3576178D

申请日：1969-12-24

Applicant: COMBUSTION ENG

Inventor： ZMOLA PAUL C

IPC: F22B1/02 ,  F22B35/00 ,  F22B1/06

CPC classification number: F22B1/026 ,  F22B35/004

Abstract: A shell and tube vapor-generator is provided in which vaporizable liquid is transformed into vapor by passing it in heat transfer relation with heating fluid conducted through the tubes and a method for operating the same. The vaporizable liquid is preheated to about saturation temperature before being passed to the vapor-generating section of the unit. At full load operation the liquid is preheated by passing it in indirect heat transfer relation with the heating fluid conducted through the tubes. At low load operation it is preheated by condensing a portion of the vapor produced in the vapor-generating section and at intermediate loads preheating is accomplished by a combination of the two.