A whole week high pressure turbine nozzle chamber, which relates to the technical field of energy and power, which comprises an outer cylinder body and the nozzle chamber, the nozzle chamber wall is provided with a hanging ear is symmetrical, the nozzle chamber through a support ear at both ends of the outer cylinder in the lower part of the cylinder body in the plane, with the overall structure of the nozzle chamber by casting, nozzle the interior is divided into five nozzle chamber, nozzle chamber into ring like structure, five nozzle chamber are respectively provided with a nozzle group group, a group of a group by the nozzle number of at least four of the ordinary nozzle, the nozzle between every two adjacent distance equal separation ribs is arranged between the nozzle chamber and nozzle chamber separation ribs arranged on the nozzle head. The high back pressure turbine nozzle chamber through the whole week, the whole week the whole cast nozzle chamber, to achieve full admission and uniform heat, eliminate partial loss, and improve the performance of quick start high pressure turbine efficiency.
【技术实现步骤摘要】
:本技术涉及能源动力
,具体涉及一种高背压汽轮机整体全周喷嘴室。
技术介绍
:高背压汽轮机是指进汽压力在8MPa~12MPa之间,排汽压力在3MPa~7MPa的背压汽轮机。高背压汽轮机将高参数的蒸汽(锅炉的标准配置参数)转换成中参数蒸汽,在满足工艺设备用汽需求的基础上,驱动各种泵、风机、压缩机以及发电机等设备,同时替代减温减压器,提高能源利用率。为实现汽轮机的喷嘴调节,汽轮机布置为多段喷嘴组,通常每段喷嘴组对应一个喷嘴室,喷嘴室都是单独铸造的,这就导致各喷嘴室之间存在一定的间隙,在间隙与喷嘴室端部的壁厚区间没有喷嘴组,也就是说存在部分进汽的情况,从而出现了部分进汽损失,且部分进汽损失的大小与喷嘴组数相关,降低了汽轮机效率。
技术实现思路
:本技术的目的是提供一种高背压汽轮机整体全周喷嘴室,实现了全周进汽和均匀受热,提高了汽轮机经济性和快速启动性能。本技术采用的技术方案为:一种高背压汽轮机整体全周喷嘴室,包括外汽缸缸体和喷嘴室,喷嘴室外壁两端对称设有搭耳,喷嘴室通过两端的搭耳支撑在外汽缸缸体下半部的中分面处,喷嘴室采用整体铸造结构,喷嘴室内分为五个喷嘴腔室,喷嘴腔室成环状结构,五个喷嘴腔室内分别设有一组喷嘴组,一组喷嘴组由个数至少为四个的普通喷嘴组成,每两个相邻的普通喷嘴之间间隔距离相等,喷嘴腔室与喷嘴腔室之间设有分隔肋,分隔肋上布置平头喷嘴。本技术的有益效果是:本高背压汽轮机整体全周喷嘴室,通过整体铸造全周喷嘴室,实现了全周进汽和均匀受热,彻底消除部分进汽损失,提高了高背压汽轮机效率和快速启动性能。附图说明:图1是本技术结构示意图;图2是本技术剖面视图。具 ...
【技术保护点】
一种高背压汽轮机整体全周喷嘴室,包括外汽缸缸体(1)和喷嘴室(2),其特征在于:喷嘴室(2)外壁两端对称设有搭耳,喷嘴室(2)通过两端的搭耳支撑在外汽缸缸体(1)下半部的中分面处,喷嘴室(2)采用整体铸造结构,喷嘴室(2)内分为五个喷嘴腔室,喷嘴腔室成环状结构,五个喷嘴腔室内分别设有一组喷嘴组,一组喷嘴组由个数至少为四个的普通喷嘴(3)组成,每两个相邻的普通喷嘴(3)之间间隔距离相等,喷嘴腔室与喷嘴腔室之间设有分隔肋(5),分隔肋(5)上布置平头喷嘴(4)。
【技术特征摘要】
1.一种高背压汽轮机整体全周喷嘴室,包括外汽缸缸体(1)和喷嘴室(2),其特征在于:喷嘴室(2)外壁两端对称设有搭耳,喷嘴室(2)通过两端的搭耳支撑在外汽缸缸体(1)下半部的中分面处,喷嘴室(2)采用整体铸造结构,喷嘴室(2)内分为...
【专利技术属性】
技术研发人员:姚福锋,康磊,王超,曹世裕,张红莲,赵俊波,韦俊,
申请(专利权)人:中国船舶重工集团公司第七零三研究所,
类型:新型
国别省市:黑龙江;23
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