CN202302236U - 核级薄膜式气动执行机构 - Google Patents

核级薄膜式气动执行机构 Download PDF

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Publication number
CN202302236U
CN202302236U CN201120374498XU CN201120374498U CN202302236U CN 202302236 U CN202302236 U CN 202302236U CN 201120374498X U CN201120374498X U CN 201120374498XU CN 201120374498 U CN201120374498 U CN 201120374498U CN 202302236 U CN202302236 U CN 202302236U
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round nut
type pneumatic
lower housing
bolt
diaphragm
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韩松
张为
徐文才
翟欢乐
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Company limited of Yangzhou Electric Power Equipment Repair & Manufacture Factory
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Yangzhou Electric Power Equipment Repair & Manufacture Factory
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Abstract

本实用新型涉及一种核级薄膜式气动执行机构。包括手动部件、上壳体、下壳体、推力组件、龙门架、圆螺母、圆螺母止动垫、螺栓、双螺栓止动垫和气动附件,所述的推力组件由托盘、膜片和压板用圆螺母和圆螺母止动垫固定组成,所述的上壳体和下壳体通过螺栓和双螺栓止动垫连接固定膜片。本实用新型结构简单、生产成本低,改进了上、下壳体结构,节约生产成本,将气动附件直接连接在下壳体上,结构更为简单紧凑,而且大大提高了结构的刚性,保证了下壳体与阀门、气动附件与下壳体的连接抗震强度。

Description

核级薄膜式气动执行机构
技术领域
本实用新型涉及一种核电站中的阀门气动执行机构,尤其涉及一种核级薄膜式气动执行机构。
背景技术
目前核电站的核岛和常规岛安装有数量较多的截止阀和隔膜阀,从机组冷态调试及正式发电运行以来,这类截止阀和隔膜片所配的国外阀门气动执行机构主要存在以下几点缺陷:
1、主体与阀门用支柱连接,抗震强度不够;
2、附件与主体连接结构复杂,抗震强度不够;
3、膜片比较厚,比较硬,不易安装;
4、圆螺母使用螺纹胶安装,不易拆卸;
5、螺栓使用单止动垫防松,安装不便,折弯不好易失效;
6、壳体比较笨重,不利于抗震;
7、推力和行程不能满足国内核级阀门的性能要求。
实用新型内容
本实用新型为了解决以上问题提供了一种结构简单、抗震强度高、便于安装维护的核级薄膜式气动执行机构。
本实用新型的技术方案是:包括手动部件、上壳体、下壳体、推力组件、龙门架、圆螺母、圆螺母止动垫、螺栓、双螺栓止动垫和气动附件,所述的推力组件由托盘、膜片和压板用圆螺母和圆螺母止动垫固定组成,所述的上壳体和下壳体通过螺栓和双螺栓止动垫连接固定膜片。
所述的下壳体和龙门架铸为一体,气动附件固定在下壳体龙门架侧面凸台上。
所述的膜片包括上下两层胶,中间添加锦纶夹布,为两胶一布结构。
所述的上壳体为斜体结构。
本实用新型结构简单、生产成本低,改进了上、下壳体结构,节约生产成本,将气动附件直接连接在下壳体上,结构更为简单紧凑,而且大大提高了结构的刚性,保证了下壳体与阀门、气动附件与下壳体的连接抗震强度;膜片改成两胶一布结构,厚度减薄、硬度变软,便于膜片的安装;托盘、膜片和压板用圆螺母加止动垫固定,便于推力组件的安装和拆卸,便于膜片的更换;螺栓通过双螺栓止动垫防松,止动垫同时止动两个螺栓,更起到互相牵制作用,止动效果更为明显,安装也更为方便。
附图说明
图1是本实用新型的结构示意图。
图中1是手动部件,2是上壳体,3是推杆,4是碟簧,5是圆螺母,6是圆螺母止动垫,7是托盘,8是膜片,9是双螺栓止动垫,10是压板,11是下壳体,12是开合螺母,13是信号组件,14是阀杆,15是气动附件。
具体实施方式
核级薄膜式气动执行机构,包括手动部件1、上壳体2、下壳体11、推力组件、龙门架、圆螺母5、圆螺母止动垫6、螺栓、双螺栓止动垫9和气动附件15,所述的推力组件由托盘7、膜片8和压板10用圆螺母5和圆螺母止动垫6固定组成,所述的上壳体2和下壳体11通过螺栓和双螺栓止动垫9连接固定膜片8,所述的下壳体11和龙门架铸为一体,气动附件15固定在下壳体11龙门架侧面凸台上,所述的膜片8包括上下两层胶,中间添加锦纶夹布,为两胶一布结构,所述的上壳体2为斜体结构。 

Claims (4)

1.核级薄膜式气动执行机构,包括手动部件、上壳体、下壳体、推力组件、龙门架、圆螺母、圆螺母止动垫、螺栓、双螺栓止动垫和气动附件,其特征在于:所述的推力组件由托盘、膜片和压板用圆螺母和圆螺母止动垫固定组成,所述的上壳体和下壳体通过螺栓和双螺栓止动垫连接固定膜片。
2.根据权利要求1所述的核级薄膜式气动执行机构,其特征在于:所述的下壳体和龙门架铸为一体,气动附件固定在下壳体龙门架侧面凸台上。
3.根据权利要求1所述的核级薄膜式气动执行机构,其特征在于:所述的膜片包括上下两层胶,中间添加锦纶夹布,为两胶一布结构。
4.根据权利要求1所述的核级薄膜式气动执行机构,其特征在于:所述的上壳体为斜体结构。
CN201120374498XU 2011-09-29 2011-09-29 核级薄膜式气动执行机构 Expired - Lifetime CN202302236U (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103899830A (zh) * 2014-04-04 2014-07-02 徐州阿卡控制阀门有限公司 智能型带故障诊断气动执行机构
CN107940024A (zh) * 2017-12-15 2018-04-20 扬中市阀门厂有限公司 一种薄膜式燃油凊灰三通阀门

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103899830A (zh) * 2014-04-04 2014-07-02 徐州阿卡控制阀门有限公司 智能型带故障诊断气动执行机构
CN107940024A (zh) * 2017-12-15 2018-04-20 扬中市阀门厂有限公司 一种薄膜式燃油凊灰三通阀门

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Owner name: YANGZHOU ELECTRIC POWER EQUIPMENT MANUFACTURE FACT

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Address after: 225003 Wenchang Middle Road, Jiangsu, China, No. 77, No.

Patentee after: Company limited of Yangzhou Electric Power Equipment Repair & Manufacture Factory

Address before: 225003 Wenchang Middle Road, Jiangsu, China, No. 77, No.

Patentee before: Yangzhou Electric Power Equipment Repair & Manufacture Factory

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CX01 Expiry of patent term

Granted publication date: 20120704