CN105202223A - 一种液动高加三通阀 - Google Patents

一种液动高加三通阀 Download PDF

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Publication number
CN105202223A
CN105202223A CN201510618528.XA CN201510618528A CN105202223A CN 105202223 A CN105202223 A CN 105202223A CN 201510618528 A CN201510618528 A CN 201510618528A CN 105202223 A CN105202223 A CN 105202223A
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CN
China
Prior art keywords
valve
pressure
way valve
spring energy
pressure relief
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201510618528.XA
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English (en)
Inventor
万胜军
李俊青
代云鹏
胡松柏
周国栋
徐柳滨
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.)
HARBIN POWER PLANT VALVE CO Ltd
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HARBIN POWER PLANT VALVE CO Ltd
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Priority to CN201510618528.XA priority Critical patent/CN105202223A/zh
Publication of CN105202223A publication Critical patent/CN105202223A/zh
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
    • F16K11/044—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with movable valve members positioned between valve seats
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/34—Cutting-off parts, e.g. valve members, seats
    • F16K1/42—Valve seats
    • F16K1/427—Attachment of the seat to the housing by one or more additional fixing elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/14—Actuating devices; Operating means; Releasing devices actuated by fluid for mounting on, or in combination with, hand-actuated valves
    • F16K31/143—Actuating devices; Operating means; Releasing devices actuated by fluid for mounting on, or in combination with, hand-actuated valves the fluid acting on a piston
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K35/00—Means to prevent accidental or unauthorised actuation
    • F16K35/06—Means to prevent accidental or unauthorised actuation using a removable actuating or locking member, e.g. a key

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Safety Valves (AREA)

Abstract

本发明是一种液动高加三通阀，用于火力发电机组高压加热器旁路保护系统。一种液动高加三通阀，它由阀体、阀瓣、上阀座、阀盖、高压活塞、活塞缸、弹簧蓄能圈、挡环、泄压管、上阀杆、销等组成。所述泄压管与阀盖焊接连接，活塞缸泄压孔、阀盖泄压孔及泄压管组成阀门泄压管路；上阀座增加了弹簧蓄能圈保护装置；同时，所述液动高加三通阀主路关闭后，可通过连接螺母连接上下阀杆，将阀门锁定。本发明解决了弹簧蓄能圈易损坏、高压加热器解裂后阀门误开启问题，同时为液动高加三通阀提供一种快速、安全、可靠的泄压管路。

Description

一种液动高加三通阀
技术领域
本发明涉及一种液动高加三通阀，属于火力发电机组阀门领域。
背景技术
高加三通阀是大型火力发电机组高压加热器旁路系统的重要设备之一，在高压加热器管系破裂和水位超警戒时，将高压加热器解裂，保证机组安全运行。
目前，内置高压活塞驱动的高加三通阀阀体与阀盖一般采用两道密封，第一道密封是自紧密封圈，第二道密封是弹簧蓄能圈，两道密封中间开有泄压槽，与焊在阀体侧壁的泄压管相连，在阀门关闭时卸掉活塞下部的介质，此种结构成本高，且弹簧蓄能圈容易损坏，影响泄压效果；上阀座与阀体采用自紧密封圈或弹簧蓄能圈密封，但弹簧蓄能圈缺少挡环保护，拆装过程中容易损坏。
另外，阀门关闭时，要求对阀门进行锁定，防止阀门误开启，需增加锁紧装置。
发明内容
针对上述技术问题，本发明的目的是提供一种活塞缸泄压可靠、带弹簧蓄能圈保护挡环及关闭锁紧的液动高加三通阀。
为实现上述目的，本发明的技术方案是一种液动高加三通阀，它包括阀体、阀瓣、上阀座、挡环、O形圈、活塞缸、活塞、泄压管、销、上阀杆、手轮、连接螺母、自紧密封圈、阀盖、下阀杆、弹簧蓄能圈、卡簧、导向板等。机组正常运行时，高加三通阀主路开启，旁路关闭。
所述液动高加三通阀阀体与上阀座活动连接，采用弹簧蓄能圈、O形圈双重密封，为防止拆装过程中弹簧蓄能圈损坏，在其下部增加了挡环，挡环与上阀座采用卡簧或螺纹两种连接方式。
所述液动高加三通阀活塞缸的泄压孔与阀盖的泄压孔连通，阀盖的泄压孔延伸至阀盖上端，与泄压管焊接连接。
所述液动高加三通阀关闭后，旋转手轮，使上阀杆下移与下阀杆接触，阀杆由导向板防转，通过连接螺母将上下阀杆连接，由销锁定。
本发明的有益效果是：液动高加三通阀的活塞缸泄压管路安全、可靠，有效避免由于密封失效产生的阀门关闭迟缓；阀体与上阀座间的弹簧蓄能圈具有保护装置，可避免拆装阀门时弹簧蓄能圈损坏；另外阀门增加了锁紧机构，有效避免阀门关闭后的误开启。
附图说明
图1为液动高加三通阀的结构示意图。
图2为上阀座与挡环的螺纹连接示意图。
图中，1.阀体、2.阀瓣、3.上阀座、4.挡环、5.O型圈、6.活塞缸、7.高压活塞、8.泄压管、9.销、10.上阀杆、11.手轮、12.连接螺母、13.四合环、14.自紧密封圈、15.阀盖、16.下阀杆、17.弹簧蓄能圈、18.卡簧、19.导向板
具体实施方式
如图1所示实施实例，液动高加三通阀的阀体1与阀盖15采用自紧密封圈14密封，高压活塞7与下阀杆16为一体式结构，活塞缸6的泄压孔与阀盖15的泄压孔连通，阀盖15的泄压孔向上延伸至阀盖15上端，与泄压管8焊接连接。当高压加热器超警戒水位时，高压活塞7下腔介质经泄压管8快速排出，阀瓣2在高压活塞7上腔介质力推动下迅速开启旁路，关闭主路，高压加热器解裂。
所述液动高加三通阀主路关闭后，可旋转手轮11，使上阀杆10下移并与下阀杆16接触，上、下阀杆由导向板19防止旋转，通过连接螺母12将上下阀杆连接，下阀杆16与连接螺母12间插上销9，可锁定阀门防止误开启。
所述液动高加三通阀的阀体1与上阀座3活动连接，采用弹簧蓄能圈17、O形圈5双重密封，在上阀座3下部弹簧蓄能圈17处增加了挡环4，挡环4与上阀座3采用卡簧18或螺纹两种方式连接，挡环4的外径尺寸与弹簧蓄能圈17相当，可防止阀门拆装过程中弹簧蓄能圈17损坏。

Claims (4)

1.一种液动高加三通阀，其特征在于：它包括阀体(1)、上阀座(3)、挡环(4)、活塞缸(6)、泄压管(8)、销(9)、上阀杆(10)、连接螺母(12)、阀盖(15)、弹簧蓄能圈(17)、卡簧(18)、导向板(19)，阀体(1)与上阀座(3)活动连接，弹簧蓄能圈(17)由挡环(4)保护，泄压管(8)与阀盖(15)焊接连接，上阀杆(10)与下阀杆(16)通过连接螺母(12)连接。
2.根据权利要求1所述的一种液动高加三通阀，其特征在于：阀体(1)与上阀座(3)活动连接，采用弹簧蓄能圈(17)密封，拆装阀门时弹簧蓄能圈(17)由挡环(4)保护，挡环(4)与上阀座(3)采用卡簧(18)或螺纹连接。
3.根据权利要求1所述的一种液动高加三通阀，其特征在于：活塞缸(6)的泄压孔延伸至阀盖(15)上端，与泄压管(8)焊接连接。
4.根据权利要求1所述的一种液动高加三通阀，其特征在于：阀门关闭后，上阀杆(10)与下阀杆(16)通过连接螺母(12)连接，由销(9)锁定。
CN201510618528.XA 2015-09-17 2015-09-17 一种液动高加三通阀 Pending CN105202223A (zh)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107524829A (zh) * 2016-06-21 2017-12-29 博格华纳公司 开关阀组件和包括开关阀组件的液压控制模块
CN112224452A (zh) * 2020-10-20 2021-01-15 北京卫星环境工程研究所 复用式毫秒级快速泄压真空机构及快速减压试验系统
CN113464659A (zh) * 2021-07-31 2021-10-01 九通集团有限公司 一种高参数截止阀

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107524829A (zh) * 2016-06-21 2017-12-29 博格华纳公司 开关阀组件和包括开关阀组件的液压控制模块
CN107524829B (zh) * 2016-06-21 2020-06-16 博格华纳公司 开关阀组件和包括开关阀组件的液压控制模块
US10753464B2 (en) 2016-06-21 2020-08-25 Borgwarner Inc. Switch valve assembly and hydraulic control module including same
CN112224452A (zh) * 2020-10-20 2021-01-15 北京卫星环境工程研究所 复用式毫秒级快速泄压真空机构及快速减压试验系统
CN113464659A (zh) * 2021-07-31 2021-10-01 九通集团有限公司 一种高参数截止阀
CN113464659B (zh) * 2021-07-31 2023-03-03 九通集团有限公司 一种高参数截止阀

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