WO2017133428A1 - 复合控制阀 - Google Patents

复合控制阀 Download PDF

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Publication number
WO2017133428A1
WO2017133428A1 PCT/CN2017/071199 CN2017071199W WO2017133428A1 WO 2017133428 A1 WO2017133428 A1 WO 2017133428A1 CN 2017071199 W CN2017071199 W CN 2017071199W WO 2017133428 A1 WO2017133428 A1 WO 2017133428A1
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WO
WIPO (PCT)
Prior art keywords
valve
sleeve
seat
core
valve core
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PCT/CN2017/071199
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English (en)
French (fr)
Inventor
刘宜贵
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北京奥赛旗石油科技开发有限公司
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Publication of WO2017133428A1 publication Critical patent/WO2017133428A1/zh

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    • 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
    • F16K1/36—Valve members
    • 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
    • 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
    • F16K1/36—Valve members
    • F16K1/38—Valve members of conical shape
    • 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
    • F16K1/44—Details of seats or valve members of double-seat valves

Definitions

  • the invention relates to the technical field of fluid transportation and control such as oil and gas field, coalbed methane exploitation, liquid, gas or mixed phase flow, in particular to a composite control valve which can ensure the valve is closed and seal, or can reduce the influence of flushing on the valve closing seal.
  • control valve such as the shut-off valve usually adopts a sealing sub-assembly formed between the valve core and the valve core seat as a switch of the valve to realize the communication and closing of the pipeline.
  • the present invention provides a composite control valve including a valve body, a valve core, a valve core seat, a valve sleeve, a valve sleeve seat, and a valve core linkage sleeve, and the valve core seat is mounted on the valve body.
  • a spool body and the valve core seat form a first sealing subassembly as a main valve; a valve sleeve seat is disposed at an upper end of the valve core seat, and a valve sleeve is mounted on a side of the valve core And the valve sleeve and the side surface of the valve core are slidable relative to each other, the valve sleeve and the valve sleeve seat form a second sealing sub-assembly as a sub-valve, and the valve core linkage sleeve drives the valve core and the valve sleeve to reciprocate motion.
  • the first sealing sub-assembly formed by the valve core and the valve core seat is a spherical or tapered sealing sub-assembly.
  • valve sleeve and the valve sleeve seat form a second sealing sub-assembly as a spherical or tapered sealing sub-assembly.
  • valve sleeve seat is integral with the valve core seat.
  • valve sleeve seat and the valve core seat are separate parts, and a valve sleeve seat seal is arranged between the valve sleeve seat and the valve core seat.
  • the upper end of the valve core is provided with an upper boss, and a lower end surface of the upper boss has a preset gap between the upper end surface of the lower body and the lower end surface of the valve body; the upper end of the valve sleeve is provided with a radial inner portion a boss; a lower end of the spool linkage sleeve is mounted in a predetermined gap of the spool, and is engaged with a radially inner boss of the valve sleeve.
  • valve sleeve and the valve core are sealed by a valve core seal.
  • valve core seat and the valve sleeve seat are fixed in the seat hole of the valve body through a valve seat fixing sleeve.
  • valve core linkage sleeve is a multi-lobed cylindrical sleeve, and the outer cylindrical surface of the lower end of the cylindrical sleeve has an adjacent boss to form a card slot, and the inner cylindrical surface of the lower end of the cylindrical sleeve is provided with an inner card slot.
  • the valve body is a straight-through valve body, a right-angle valve body or a Y-type valve body.
  • the working process of the composite control valve is as follows: during the opening process, the diaphragm control assembly transmits power upwards, drives the spool linkage sleeve up, and the valve sleeve moves up, the valve sleeve separates from the valve sleeve seat, and the auxiliary valve opens; the spool linkage sleeve continues Move the preset distance upwards, drive the valve sleeve and the valve core to move up, the main valve opens, the valve core linkage sleeve continues to move up a certain amount of distance, the main valve opens to the maximum opening degree, completes the composite control valve opening; the closing process, the diaphragm control assembly The power is transmitted downward, the spool linkage sleeve, the valve sleeve and the valve core are moved downward, the spool is moved to the spool seat, the main valve is closed under the action of throttling or gravity, the spool linkage sleeve and the valve slee
  • the valve core and the valve core seat form a first sealing sub-assembly as a main valve
  • the valve sleeve and the valve sleeve seat form a second sealing sub-assembly as a sub-valve
  • the main valve is mainly responsible for the control of the valve opening size
  • the sub-valve is mainly responsible for the complex Close the seal with the valve. This can ensure that the valve closes the seal or reduces the impact of flushing on the valve closing seal, thereby reducing cost, energy consumption and construction work.
  • FIG. 1 is a schematic structural view of a composite control valve in a closed state according to an embodiment of the present invention
  • FIG. 2 is a schematic structural view showing the auxiliary valve of the composite control valve of FIG. 1 in an open state
  • Figure 3 is a schematic view showing the structure of the main valve of the composite control valve in the open state
  • Valve body 1 valve seat 2, valve sleeve seal 3, valve sleeve 4, valve core 5, valve core seal 6, valve sleeve 7, valve seat sleeve 8, valve core linkage sleeve 9, diaphragm control assembly 10.
  • exemplary is used herein to mean “serving as an example, embodiment, or illustrative.” Any embodiment described herein as “exemplary” is not necessarily construed as being superior or better than other implementations. example.
  • the composite control valve provided by the present invention may be a control valve such as a composite needle valve or a composite shut-off valve.
  • a control valve such as a composite needle valve or a composite shut-off valve.
  • the following is a description of the inventive concept of the composite needle valve. It can be understood that the scope of the present invention is protected. It is not limited to a composite control valve such as a composite needle valve, and structural improvements made by the present invention are intended to be within the scope of the present invention.
  • FIG. 1 is a schematic structural view of a composite control valve in a closed state according to an embodiment of the present invention
  • FIG. 2 is a structural schematic view showing a secondary valve of the composite control valve in an open state in FIG.
  • the structural schematic diagram of the main valve of the composite control valve in the open state is shown in FIG.
  • the composite control valve provided by the present invention may include a diaphragm control assembly 10 and a composite control valve body assembly, and the diaphragm control assembly 10 transmits power, and the composite control valve body assembly realizes opening of the valve under the action of the power. And off.
  • the composite control valve body assembly may include a valve body 1, a valve core 5, a valve core seat 2, a valve sleeve 7, a valve sleeve seat 4, and a valve core linkage sleeve 9.
  • the spool seat 2 is mounted in a spool seat bore of the valve body 1, the spool 5 and the spool seat 2 form a first seal subassembly, the assembly as a main valve; the spool The upper end of the seat 2 is provided with a valve sleeve 4, the valve A valve sleeve 7 is mounted on a side of the core 5, and the valve sleeve 7 is slidable relative to a side surface of the valve body 5, and the valve sleeve 7 and the valve sleeve seat 4 form a second sealing subassembly as a secondary valve
  • the spool linkage sleeve 9 drives the spool 5 and the valve sleeve 7 to reciprocate.
  • the diaphragm control assembly 10 transmits power upwards, and the spool linkage sleeve 9 is moved upward, while the valve sleeve 7 is moved upward, the valve sleeve 7 is separated from the valve sleeve seat 4, and the auxiliary valve is opened; the spool linkage sleeve 9 continues to move up.
  • Set the distance drive the valve sleeve 7, the valve core 5 moves up, the main valve opens; the valve core linkage sleeve 9 continues to move up a certain amount of distance, the main valve opens to the maximum opening degree, and the composite control valve is opened.
  • the diaphragm control assembly 10 transmits power downward, and drives the spool linkage sleeve 9, the valve sleeve 7, and the spool 5 to move downward, and the spool 5 moves to the spool seat 2, and the main valve is closed under throttling or gravity;
  • the spool linkage sleeve 9 and the valve sleeve 7 are further moved downward, the valve sleeve 7 is moved to the valve sleeve seat 4, the auxiliary valve is closed, and the composite control valve is closed.
  • the first sealing sub-assembly formed by the valve core 5 and the valve core seat 2 serves as a main valve
  • the second sealing sub-assembly formed by the valve sleeve 7 and the valve sleeve seat 4 serves as a sub-valve
  • the main valve is mainly responsible for controlling the opening size of the valve
  • connection relationship between the spool linkage sleeve 9 and the valve core 5 and the valve sleeve 7 may adopt the following scheme: the upper end of the valve core 5 is provided with an upper boss, and the lower end surface of the upper boss is a preset gap between the upper end faces of the lower body of the valve body 5; the upper end of the valve sleeve 7 is provided with a radially inner boss; The lower end of the spool linkage sleeve 9 is mounted in a predetermined gap of the spool 5 and is engaged with a radially inner boss of the valve sleeve 7.
  • the auxiliary valve in the opening process, can be opened first and then the main valve can be opened.
  • the main valve In the process of closing, the main valve can be closed first and then the auxiliary valve can be closed; the structure is compact, and can prevent or reduce the scouring of liquid or gas. The effect on the valve seal.
  • valve core seat 2 and the valve sleeve seat 4 are fixed in the seat hole of the valve body 1 through the valve seat fixing sleeve 8 .
  • the first sealing sub-assembly formed by the valve core 5 and the valve core seat 2 may be a spherical or tapered sealing sub-assembly; as shown in FIG. 1 , between the valve core 5 and the valve core seat 2 Forming a cone seal pair, mainly to achieve valve auxiliary sealing and opening size control.
  • valve sleeve 7 and the valve sleeve 4 form a second sealing sub-assembly which may be a spherical or tapered sealing sub-assembly; as shown in FIG. 1 , the valve sleeve 7 and the valve sleeve 4
  • the formation of the spherical sealing pair can ensure that the valve sleeve 7 and the valve sleeve 4 are less affected by the scouring during the working process or the switching, and have a better sealing effect.
  • the valve body 1 is a straight-through valve body, a right-angle valve body, a Y-type valve body or other forms of valve body.
  • the present invention does not limit the specific structure of the valve body, and has the above structure.
  • the valve body should be within the scope of the present invention.
  • valve sleeve 4 and the valve core seat 2 are a single piece or a separate piece. If the valve sleeve 4 and the valve core seat 2 are separated, a valve seat seat seal may be provided. . As shown in Figure 1, A valve sleeve 4 seal 3 is disposed between the split valve sleeve 4 and the valve core seat 2 to improve the processing performance while ensuring a sealing effect.
  • the spool linkage sleeve 9 is a multi-lobed cylindrical sleeve, and the outer cylindrical surface of the lower end of the cylindrical sleeve has a card slot formed by an adjacent boss, and the inner cylindrical surface of the lower end of the cylindrical sleeve is provided with an inner card slot.
  • valve sleeve 7 and the valve core 5 are sealed by a valve core seal 6 so that when the valve sleeve 7 slides relative to the valve core 5, the seal can be kept between the two, thereby preventing There is a gap between them and a loss occurs.
  • the composite control valve provided by the invention in the opening process, transmits the power upwards, drives the valve core linkage sleeve to move upward, and the valve sleeve moves up, the valve sleeve and the valve sleeve seat are separated, the auxiliary valve is opened; the spool linkage sleeve continues Move the preset distance upwards, drive the valve sleeve and the valve core to move up, the main valve opens, the valve core linkage sleeve continues to move up a certain amount of distance, the main valve opens to the maximum opening degree, completes the composite control valve to open; during the closing process, the diaphragm control The component transmits power downward, drives the valve core linkage sleeve, the valve sleeve and the valve core to move downward, and the valve core moves to the valve core seat.
  • the main valve is closed under the action of throttling or gravity, and the valve core linkage sleeve and the valve sleeve are further moved downward.
  • the valve sleeve is moved to the sleeve seat, the secondary valve is closed, and the composite control valve is closed. Therefore,
  • the invention has industrial applicability.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sliding Valves (AREA)
  • Magnetically Actuated Valves (AREA)
  • Lift Valve (AREA)

Abstract

一种复合控制阀，包括阀体(1)、阀芯(5)、阀芯座(2)、阀套(7)、阀套座(4)、阀芯联动套(9)，所述阀芯座(2)安装在所述阀体(1)的阀芯座座孔内，所述阀芯(5)与所述阀芯座(2)形成第一密封副组件作为主阀；所述阀芯座(2)的上端面设有阀套座(4)，所述阀芯(5)的侧面安装有阀套(7)，且阀套(7)与所述阀芯(5)的侧面相对滑动，所述阀套(7)与所述阀套座(4)形成第二密封副组件作为副阀，所述阀芯联动套(9)带动所述阀芯(5)和阀套(7)往复运动。该复合控制阀可以保证阀门关闭密封或者减小冲刷对阀关闭密封的影响，以降低成本、能耗和施工工作量。

Description

复合控制阀
本申请要求于2016年02月05日提交中国专利局、申请号为201610083892.5、发明名称为“复合控制阀”的中国专利申请的优先权，其全部内容通过引用结合在本申请。
技术领域
本发明涉及油气田、煤层气开采、液体、气体或混相流等流体输送、控制领域技术，尤其涉及一种可以保证阀门关闭密封，或者可以减小冲刷对阀关闭密封影响的复合控制阀。
背景技术
目前在油气田、煤层气开采、液体、气体或混相流等流体输送、控制领域，通常使用的各类普通针阀、截止阀等控制阀对液体或气体管路进行控制，这些普通的针阀、截止阀等控制阀通常采用阀芯与阀芯座之间形成的密封副组件作为阀门的开关，以实现管路的连通与关闭。
但是在高压情况下，由于多次开关冲蚀或长时间开启工作冲蚀，阀芯易被冲刷，从而失去关闭密封的功能。在部分重要工程中，为保证工程质量不受影响，必须增加备用阀来应对处理；这就增加了成本、能耗和施工工作量。
因此，如何保证控制阀关闭密封或减小冲刷对阀关闭密封的影响，成 为本领域技术人员亟待解决的技术难题。
发明内容
本发明的目的是为了提供一种复合控制阀，该复合控制阀可以保证阀门关闭密封或者减小冲刷对阀关闭密封的影响，以降低成本、能耗和施工工作量。
为了实现上述目的，本发明提供了一种复合控制阀，包括阀体、阀芯、阀芯座、阀套、阀套座、阀芯联动套，所述阀芯座安装在所述阀体的阀芯座座孔内，所述阀芯与所述阀芯座形成第一密封副组件作为主阀；所述阀芯座的上端设有阀套座，所述阀芯的侧面安装有阀套，且阀套与所述阀芯的侧面可以相对滑动，所述阀套与所述阀套座形成第二密封副组件作为副阀，所述阀芯联动套带动所述阀芯和阀套往复运动。
优选的，所述阀芯与所述阀芯座形成的第一密封副组件为球面或锥面密封副组件。
优选的，所述阀套与所述阀套座形成第二密封副组件为球面或锥面密封副组件。
优选的，所述阀套座与所述阀芯座为一体件。
优选的，所述阀套座与所述阀芯座为分体件，所述阀套座与所述阀芯座之间有阀套座密封件。
优选的，所述阀芯的上端设有上凸台，且该上凸台的下端面与所述阀芯的下体上端面之间具有预设间隙；所述阀套的上端设有径向内凸台；所述阀芯联动套的下端安装在所述阀芯的预设间隙内，且与所述阀套的径向内凸台卡接。
优选的，所述阀套与所述阀芯之间采用阀芯密封件密封。
优选的，所述阀芯座与所述阀套座通过阀座固定套固定在所述阀体的座孔内。
优选的，所述阀芯联动套为多瓣组成圆柱套，圆柱套下端外圆柱面有相邻凸台形成卡槽，圆柱套下端内圆柱面设有内卡槽。
优选的，所述阀体为直通式阀体、直角式阀体或Y式阀体。
该复合控制阀的工作过程如下：开启过程，隔膜控制组件向上传递动力，带动阀芯联动套上移，同时阀套上移，阀套与阀套座分离，副阀打开；阀芯联动套继续上移预设距离，带动阀套、阀芯上移，主阀打开，阀芯联动套继续上移一定量距离，主阀打开到最大开度，完成复合控制阀开启；关闭过程，隔膜控制组件向下传递动力，带动阀芯联动套、阀套、阀芯下移，阀芯移至阀芯座，在节流或重力作用下主阀关闭，阀芯联动套、阀套进一步下移，阀套移至阀套座，副阀关闭，完成复合控制阀关闭。
阀芯与阀芯座形成第一密封副组件作为主阀，阀套与阀套座形成第二密封副组件作为副阀，主阀主要负责阀开启大小的控制，副阀主要负责复 合阀关闭密封。从而可以保证阀门关闭密封或者减小冲刷对阀关闭密封的影响，进而降低成本、能耗和施工工作量。
附图说明
包含在说明书中并且构成说明书的一部分的附图与说明书示出了本发明的示例性、特征和方面，并且用于解释本发明的原理。
图1为本发明一种实施例提供的复合控制阀处于闭合状态的结构示意图；
图2为图1中复合控制阀的副阀处于开启状态的结构示意图；
图3位图1中复合控制阀的主阀处于开启状态的结构示意图；
其中，图1-图3中：
阀体1、阀芯座2、阀套座密封件3、阀套座4、阀芯5、阀芯密封件6、阀套7、阀座固定套8、阀芯联动套9、隔膜控制组件10。
具体实施方式
以下将参考附图详细说明本发明的各种示例性实施例、特征和方面。附图中相同的附图标记表示功能相同或者相似的元件。尽管在附图中示出了实施例的各种方面，但是除非特别指出，不必按比例绘制附图。
在这里专用的词“示例性”意为“用作例子、实施例或者说明性”。这里作为“示例性”所说明的任何实施例不必解释为优于或者好于其他实施 例。
另外，为了更好的说明本发明，在下文的具体实施方式中给出了众多的具体细节。本领域技术人员应当理解，没有某些具体细节，本发明同样可以实施。在一些实例中，对于本领域技术人员熟知的方法、手段、元件和电路未作详细描述，以便于凸显本发明的主旨。
需要说明的是本发明提供的复合控制阀可以为复合针阀、复合截止阀等控制阀，以下内容以复合针阀为例对本发明的发明构思进行介绍，可以理解的是，本发明的保护范围不局限于如复合针阀类的复合控制阀，凡在本发明的发明构思的启示下，所作出的结构上的改进均应在本发明的保护范围内。
请参看图1-图3，图1为本发明一种实施例提供的复合控制阀处于闭合状态的结构示意图；图2为图1中复合控制阀的副阀处于开启状态的结构示意图；图3位图1中复合控制阀的主阀处于开启状态的结构示意图。
如图1所示，本发明提供的复合控制阀可以包括隔膜控制组件10和复合控制阀体组件，由隔膜控制组件10传递动力，复合控制阀体组件在所述动力的作用下实现阀门的开启和关闭。所述复合控制阀体组件可以包括阀体1、阀芯5、阀芯座2、阀套7、阀套座4、阀芯联动套9。所述阀芯座2安装在所述阀体1的阀芯座座孔内，所述阀芯5与所述阀芯座2形成第一密封副组件，该组件作为主阀；所述阀芯座2的上端设有阀套座4，所述阀 芯5的侧面安装有阀套7，且阀套7可相对所述阀芯5的侧面相对滑动，所述阀套7与所述阀套座4形成第二密封副组件，该组件作为副阀；所述阀芯联动套9带动所述阀芯5和阀套7往复运动。
请参看图2和图3，该复合控制阀的工作过程如下：
开启过程，隔膜控制组件10向上传递动力，带动阀芯联动套9上移，同时阀套7上移，阀套7与阀套座4分离，副阀打开；阀芯联动套9继续上移预设距离，带动阀套7、阀芯5上移，主阀打开；阀芯联动套9继续上移一定量距离，主阀打开到最大开度，完成复合控制阀开启。
关闭过程，隔膜控制组件10向下传递动力，带动阀芯联动套9、阀套7、阀芯5下移，阀芯5移至阀芯座2，在节流或重力作用下主阀关闭；阀芯联动套9、阀套7进一步下移，阀套7移至阀套座4，副阀关闭，完成复合控制阀关闭。
阀芯5与阀芯座2形成的第一密封副组件作为主阀，阀套7与阀套座4形成的第二密封副组件作为副阀；主阀主要负责阀开启大小的控制，副阀主要负责复合阀的关闭密封。从而这样就可以保证阀门关闭密封或者减小冲刷对阀关闭密封的影响，进而降低成本、能耗和施工工作量。
具体的方案中，阀芯联动套9与阀芯5和阀套7的连接关系可以采用以下方案：所述阀芯5的上端设有上凸台，且该上凸台的下端面与所述阀芯5的下体上端面之间具有预设间隙；所述阀套7的上端设有径向内凸台； 所述阀芯联动套9的下端安装在所述阀芯5的预设间隙内，且与所述阀套7的径向内凸台卡接。
利用这种结构，在开启过程中，可以先打开副阀再打开主阀，在关闭的过程中，可以先关闭主阀再关闭副阀；该结构紧凑，可以防止或减小液体或气体的冲刷给阀密封带来的影响。
具体的方案中，所述阀芯座2与所述阀套座4通过阀座固定套8固定在所述阀体1的座孔内。
优选的方案中，所述阀芯5与所述阀芯座2形成的第一密封副组件可以为球面或锥面密封副组件；如图1所示，阀芯5与阀芯座2之间形成锥面密封副，主要实现阀辅助密封和开启大小控制。
优选的方案中，所述阀套7与所述阀套座4形成第二密封副组件可以为球面或锥面密封副组件；如图1所示，阀套7与所述阀套座4之间形成球面密封副，可以保证阀套7与所述阀套座4在工作过程中或开关时，受冲刷影响较小，具有更好的密封效果。
具体的方案中，所述阀体1为直通式阀体、直角式阀体、Y式阀体或其他形式的阀体，本发明对阀体的具体的结构不做限制，凡具有上述结构的阀体均应在本发明的保护范围内。
优选的方案中，所述阀套座4与所述阀芯座2为一体件或分体件，若阀套座4与所述阀芯座2为分体时，可以设置阀套座密封件。如图1所示， 所述分体的阀套座4与所述阀芯座2之间设有阀套座4密封件3，以改善加工性能，同时保证密封效果。
优选的方案中，所述阀芯联动套9为多瓣组成圆柱套，圆柱套下端外圆柱面有相邻凸台形成的卡槽，圆柱套下端内圆柱面设有内卡槽。
优选的方案中，所述阀套7与所述阀芯5之间采用阀芯密封件6密封，以使得阀套7相对阀芯5滑动时，二者之间可以保持密封，防止由于二者之间有间隙而产生漏失。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本发明的保护范围。
工业实用性
本发明提供的复合控制阀，在开启过程，隔膜控制组件向上传递动力，带动阀芯联动套上移，同时阀套上移，阀套与阀套座分离，副阀打开；阀芯联动套继续上移预设距离，带动阀套、阀芯上移，主阀打开，阀芯联动套继续上移一定量距离，主阀打开到最大开度，完成复合控制阀开启；在关闭过程，隔膜控制组件向下传递动力，带动阀芯联动套、阀套、阀芯下移，阀芯移至阀芯座，在节流或重力作用下主阀关闭，阀芯联动套、阀套进一步下移，阀套移至阀套座，副阀关闭，完成复合控制阀关闭。因此， 本发明具有工业实用性。

Claims (10)

  1. 一种复合控制阀，包括阀体、阀芯、阀芯座、阀套、阀套座、阀芯联动套，所述阀芯座安装在所述阀体的阀芯座座孔内，其特征在于，所述阀芯与所述阀芯座形成第一密封副组件作为主阀；所述阀芯座的上端设有阀套座，所述阀芯的侧面安装有阀套，且阀套与所述阀芯的侧面相对滑动，所述阀套与所述阀套座形成第二密封副组件作为副阀，所述阀芯联动套带动所述阀芯和阀套往复运动。
  2. 根据权利要求1所述的复合控制阀，其特征在于，所述阀芯与所述阀芯座形成的第一密封副组件为球面或锥面密封副组件。
  3. 根据权利要求1所述的复合控制阀，其特征在于，所述阀套与所述阀套座形成第二密封副组件为球面或锥面密封副组件。
  4. 根据权利要求1所述的复合控制阀，其特征在于，所述阀套座与所述阀芯座为一体件。
  5. 根据权利要求1所述的复合控制阀，其特征在于，所述阀套座与所述阀芯座为分体件，所述阀套座与所述阀芯座之间有阀套座密封件。
  6. 根据权利要求1至5任一项所述的复合控制阀，其特征在于，所述阀芯的上端设有上凸台，且该上凸台的下端面与所述阀芯的下体上端面之间具有预设间隙；所述阀套的上端设有径向内凸台；所述阀芯联动套的下 端安装在所述阀芯的预设间隙内，且与所述阀套的径向内凸台卡接。
  7. 根据权利要求1至5任一项所述的复合控制阀，其特征在于，所述阀套与所述阀芯之间采用阀芯密封件密封。
  8. 根据权利要求1至5任一项所述的复合控制阀，其特征在于，所述阀芯座与所述阀套座通过阀座固定套固定在所述阀体的座孔内。
  9. 根据权利要求1至5任一项所述的复合控制阀，其特征在于，所述阀芯联动套为多瓣组成圆柱套，圆柱套下端外圆柱面有相邻凸台形成卡槽，圆柱套下端内圆柱面设有内卡槽。
  10. 根据权利要求1至5任一项所述的复合控制阀，其特征在于，所述阀体为直通式阀体、直角式阀体或Y式阀体。
PCT/CN2017/071199 2016-02-05 2017-01-15 复合控制阀 WO2017133428A1 (zh)

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