WO2023245691A1 - 一种螺纹紧固式膜式先导大流量比例阀 - Google Patents

一种螺纹紧固式膜式先导大流量比例阀 Download PDF

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WO2023245691A1
WO2023245691A1 PCT/CN2022/101489 CN2022101489W WO2023245691A1 WO 2023245691 A1 WO2023245691 A1 WO 2023245691A1 CN 2022101489 W CN2022101489 W CN 2022101489W WO 2023245691 A1 WO2023245691 A1 WO 2023245691A1
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Prior art keywords
valve
diaphragm
valve body
core head
valve stem
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PCT/CN2022/101489
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English (en)
French (fr)
Inventor
罗勇
张仁钦
陈红梅
朱晓明
杨凯
祝乔乔
茹梦娜
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苏州仁甬得物联科技有限公司
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Publication of WO2023245691A1 publication Critical patent/WO2023245691A1/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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
    • F16K31/0644—One-way valve
    • F16K31/0655—Lift valves
    • 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
    • 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
    • F16K1/48—Attaching valve members to screw-spindles
    • F16K1/487—Attaching valve members to screw-spindles by a fixing element extending in the axial direction of the spindle, e.g. a screw

Definitions

  • the invention relates to a thread-fastened diaphragm type pilot large-flow proportional valve, which belongs to the technical field of proportional valves.
  • the electromagnetic proportional valve is an important device for accurately controlling fluid flow.
  • a diaphragm pilot large flow proportional valve CN202210439835.1
  • the component separates a closed pressure balance space in the valve, and cooperates with the pilot hole to form a pilot opening structure in the valve; however, the structure of the diaphragm component of this structure is still somewhat complex and not simple enough, and needs to be optimized.
  • the object of the present invention is to provide a thread-fastened diaphragm pilot large flow proportional valve to overcome the shortcomings of the prior art.
  • a threaded fastening diaphragm pilot large flow proportional valve including a valve body, a valve cover, a valve stem, a valve core head, a shrapnel and a diaphragm assembly;
  • the valve The body is provided with a fluid inlet and a fluid outlet, and the valve body is provided with a flow channel connecting the fluid inlet and the fluid outlet;
  • the valve cover is arranged on the valve body, the upper end of the valve stem cooperates with the valve cover, and the valve core head is arranged on the valve body.
  • the lower end of the rod and the valve core head are used to control the opening of the flow channel in the valve body; the elastic piece is located in the valve cover, the valve stem cooperates with the elastic piece, and the diaphragm assembly is arranged in the cavity formed by the valve body and the valve cover.
  • a closed pressure balance space is formed on the upper side of the diaphragm assembly; pilot holes are provided on the valve stem and valve core heads, and the pilot holes communicate with the fluid inlet and the pressure balance space.
  • the diaphragm assembly includes a diaphragm, a threaded fastening piece, a support piece and a valve stem gasket; the threaded fastening piece is located on the upper side of the support piece, and the threaded fastening piece and the support piece are fixedly connected through fastening screws, and The threaded fastening piece and the supporting piece clamp the outer ring part of the diaphragm, and the valve stem and valve core head cooperate with the valve stem gasket to clamp the inner ring part of the diaphragm.
  • the threaded fastening piece cooperates with the valve body through a threaded structure, and the threaded fastening piece is provided with a sealing ring that cooperates with the valve body and valve cover.
  • valve stem gasket is located on the upper side of the diaphragm.
  • a magnetic conductive frame is provided above the valve cover, a coil skeleton is provided on the magnetic conductive frame, a coil is provided on the coil skeleton, a magnetic conductive body is connected to the upper end of the valve stem, and the magnetic conductive body and the coil cooperate through electromagnetic induction.
  • a sealing gasket is provided on the lower side of the valve core head.
  • the present invention has the following advantages compared with the prior art:
  • the threaded fastening diaphragm pilot large flow proportional valve proposed by the present invention optimizes the design of the diaphragm assembly, cancels the gasket on the outer ring of the diaphragm, and instead uses a threaded fastening piece and a support piece to directly screw and clamp
  • the structure of the outer ring of the diaphragm simplifies the design, making assembly easier and providing better results; the overall structure is still a diaphragm pilot structure, which greatly reduces the starting force, thereby reducing the starting voltage of the coil.
  • Figure 1 is a schematic structural diagram of a thread-fastened diaphragm pilot large flow proportional valve according to the present invention.
  • connection should be understood in a broad sense.
  • connection can be a fixed connection or a detachable connection.
  • Connection can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two components.
  • connection can be a fixed connection or a detachable connection.
  • connection can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two components.
  • a threaded fastening diaphragm type pilot large flow proportional valve includes a valve body 1, a valve cover 2, a valve stem 3, a valve core head 4, a shrapnel 5 and a diaphragm assembly. ;
  • the valve body 1 is provided with a fluid inlet 6 and a fluid outlet 7, and the valve body 1 is provided with a flow channel connecting the fluid inlet 6 and the fluid outlet 7.
  • the valve cover 2 is installed on the valve body 1, the upper end of the valve stem 3 cooperates with the valve cover 2, the valve core head 4 is arranged at the lower end of the valve stem 3, the valve core head 4 cooperates with the valve stem 3 through a threaded structure, and the valve cover
  • a magnetic guide frame 21 is provided above 2
  • a coil bobbin 22 is provided on the magnetic conductor frame 21
  • a coil 23 is provided on the coil bobbin 22
  • a magnetic conductor 24 is connected to the upper end of the valve stem 3, and the valve stem 3 and the magnetic conductor 24 pass through it.
  • the valve cover 2, the magnetic conductor 24 and the coil 23 cooperate through electromagnetic induction to drive the valve core head 4 to move up and down slightly through the valve stem 3 to control the opening of the flow channel in the valve body 1.
  • a sealing gasket 9 is provided on the lower side of the valve core head 4.
  • the sealing gasket 9 is elastic and can reduce the starting pressure to a certain extent.
  • the elastic piece 5 is located in the valve cover 2.
  • the valve stem 3 cooperates with the elastic piece 5 to form a downward reaction force on the elastic piece 5.
  • the diaphragm assembly is arranged between the valve body 1 and the valve cover 2.
  • the diaphragm assembly is in contact with the valve cover.
  • a closed pressure balance space is formed between 2; a pilot hole 8 is provided on the valve stem 3 and the valve core head 4, and the pilot hole 8 communicates with the fluid inlet 6 and the pressure balance space.
  • the diaphragm assembly includes a diaphragm 11, a threaded fastening piece 12, a supporting piece 13 and a valve stem gasket 15; the threaded fastening piece 12 is located on the upper side of the supporting piece 13, and the threaded fastening piece 12 and the supporting piece 13
  • the connection is fixed by fastening screws 14 and the outer ring part of the diaphragm 11 is clamped.
  • the valve stem 3 and the valve core head 4 cooperate with the valve stem gasket 15 to clamp the inner ring part of the diaphragm 11.
  • the valve stem gasket 15 can It is provided on the upper or lower side of the diaphragm 11 .
  • the threaded fastening piece 12 and the supporting piece 13 can be directly placed between the valve body 1 and the valve cover 2, and are clamped and fixed by the valve body 1 and the valve cover 2; the threaded fastening piece 12 can also be installed on the valve through a threaded structure. on body 1 or valve cover 2 to improve the stability of component assembly.
  • the threaded fastening piece 12 is provided with a sealing ring 16 that cooperates with the valve body 1 and the valve cover 2 to ensure the sealing degree of the pressure balance space and improve the sealing degree of the valve body 1 and the valve cover 2 .
  • This solution uses a modular diaphragm component, which overcomes the problem of the traditional technology that the mold is directly fixed and molded at one time, and the parameters cannot be adjusted. Moreover, this solution uses two sets of inner and outer compression gaskets, and adopts thread adjustment to make the compression adjustment easier.
  • the diaphragm is the metal-to-metal friction between the gasket and the fastening piece or support piece, as well as the gasket and the valve stem or valve core head, which protects the non-metal material diaphragm and greatly increases its service life; using this solution This pilot structure greatly reduces the force and power required by the execution component.
  • This plan also optimizes the diaphragm assembly, canceling the gasket on the outer ring of the diaphragm, and instead uses a threaded fastening piece and a support piece to directly tighten the screws and clamp the diaphragm outer ring structure, which simplifies the design and makes the assembly easier. easy.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Driven Valves (AREA)
  • Magnetically Actuated Valves (AREA)

Abstract

本发明涉及一种螺纹紧固式膜式先导大流量比例阀，包含阀体、阀盖、阀杆、阀芯头、弹片和膜片组件；阀体上设置有流体入口和流体出口；阀盖设置在阀体上，阀芯头设置在阀杆的下端，阀芯头用于控制阀体中的流道的开度；弹片位于阀盖中，阀杆与弹片配合，膜片组件设置在阀体与阀盖形成的腔体中，阀杆和阀芯头上设置有先导孔，先导孔连通流体入口和压力平衡空间；本方案采用膜式先导结构，使启动力极大减小，进而降低线圈的启动电压；并且膜片组件采用模块化设计，便于低成本的快速系列化产品；膜片组件采用螺纹结构，并采用内外两个压紧垫片，可以对不同流量采取不同的压紧参数，提升了产品的参数的丰富度，以便于按照不同客户要求定制多种类型的膜片。

Description

一种螺纹紧固式膜式先导大流量比例阀 技术领域
本发明涉及一种螺纹紧固式膜式先导大流量比例阀，属于比例阀技术领域。
背景技术
电磁比例阀是精确控制流体流量的重要装置，为了克服阀门开启压差问题，降低启动负载，本申请人日前申请了一种膜式先导大流量比例阀，CN202210439835.1，通过优化设计的膜片组件在阀门内分隔出封闭的压力平衡空间，配合先导孔，使阀门内形成先导开启结构；但该结构的膜片组件的结构仍有些复杂，不够简便，需要优化。
发明内容
本发明目的是为了克服现有技术的不足而提供一种螺纹紧固式膜式先导大流量比例阀。
为达到上述目的，本发明采用的技术方案是：一种螺纹紧固式膜式先导大流量比例阀，包含阀体、阀盖、阀杆、阀芯头、弹片和膜片组件；所述阀体上设置有流体入口和流体出口，阀体中设置有连通流体入口和流体出口的流道；所述阀盖设置在阀体上，阀杆的上端与阀盖配合，阀芯头设置在阀杆的下端，阀芯头用于控制阀体中的流道的开度；所述弹片位于阀盖中，阀杆与弹片配合，膜片组件设置在阀体与阀盖形成的腔体中，膜片组件的上侧形成封闭的压力平衡空间；所述阀杆和阀芯头上设置有先导孔，先导孔连通流体入口和压力平衡空间。
所述膜片组件包含膜片、螺纹紧固片、支撑片和阀杆垫片；所述 螺纹紧固片位于支撑片的上侧，螺纹紧固片与支撑片通过紧固螺丝固定连接，且螺纹紧固片与支撑片夹紧膜片的外圈部位，阀杆和阀芯头配合阀杆垫片来夹紧膜片的内圈部位。
优选的，所述螺纹紧固片通过螺纹结构与阀体配合，螺纹紧固片上设置有与阀体和阀盖配合的密封圈。
优选的，所述阀杆垫片位于膜片的上侧。
优选的，所述阀盖的上方设置有导磁架，导磁架上设置有线圈骨架，线圈骨架上设置有线圈，阀杆的上端连接有导磁体，导磁体与线圈通过电磁感应配合。
优选的，所述阀芯头的下侧设置有密封垫。
由于上述技术方案的运用，本发明与现有技术相比具有下列优点：
本发明方案的螺纹紧固式膜式先导大流量比例阀，优化设计了膜片组件，取消了膜片外圈的垫片，改为采用螺纹紧固片和支撑片直接螺丝拧紧，并夹紧膜片外圈的结构，更加简化设计，使装配更加容易，效果更佳；整体依旧为膜式先导结构，使启动力极大减小，进而降低线圈的启动电压。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对本发明实施例描述中所需要使用的附图作简单的介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据本发明实施例的内容和这些附图获得其他的附图。
附图1为本发明所述的一种螺纹紧固式膜式先导大流量比例阀的结构示意图。
具体实施方式
为使本发明解决的技术问题、采用的技术方案和达到的技术效果更加清楚，下面将结合附图对本发明实施例的技术方案作进一步的详细描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
在本发明的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖”、“直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性。其中，术语“第一位置”和“第二位置”为两个不同的位置。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
如附图1所示，本发明所述的一种螺纹紧固式膜式先导大流量比例阀，包含阀体1、阀盖2、阀杆3、阀芯头4、弹片5和膜片组件；所述阀体1上设置有流体入口6和流体出口7，阀体1中设置有连通流体入口6和流体出口7的流道。
所述阀盖2安装在阀体1上，阀杆3的上端与阀盖2配合，阀芯头4设置在阀杆3的下端，阀芯头4通过螺纹结构与阀杆3配合，阀盖2的上方设置有导磁架21，导磁架21上设置有线圈骨架22，线圈骨架22上设置有线圈23，阀杆3的上端连接有导磁体24，阀杆3和导磁体24穿过阀盖2，导磁体24与线圈23通过电磁感应配合，通过阀杆3带动阀芯头4上下微动，来控制阀体1中的流道的开度。
所述阀芯头4的下侧设置有密封垫9，密封垫9具有弹性，可以在一定程度上降低启动压力。
所述弹片5位于阀盖2中，阀杆3与弹片5配合，对弹片5形成向下的反作用力，膜片组件设置在阀体1与阀盖2之间，膜片组件的与阀盖2之间形成封闭的压力平衡空间；所述阀杆3和阀芯头4上设置有先导孔8，先导孔8连通流体入口6和压力平衡空间。
所述膜片组件包含膜片11、螺纹紧固片12、支撑片13和阀杆垫片15；所述螺纹紧固片12位于支撑片13的上侧，螺纹紧固片12与支撑片13通过紧固螺丝14固定连接，并夹紧膜片11的外圈部位，阀杆3和阀芯头4配合阀杆垫片15来夹紧膜片11的内圈部位，阀杆垫片15可以设置在膜片11的上侧或下侧。
所述螺纹紧固片12和支撑片13可以直接放置在阀体1和阀盖2之间，由阀体1和阀盖2夹紧固定；螺纹紧固片12也可以通过螺纹 结构安装在阀体1或阀盖2上，以提高组件装配的稳定性。
所述螺纹紧固片12上设置有与阀体1和阀盖2配合的密封圈16，以保证压力平衡空间的密闭程度，并提高阀体1和阀盖2的密封程度。
本方案采用模块化的膜片组件，克服了传统的技术的模具直接一次固定成型，无法调整参数的问题；并且，本方案采用内外两组压紧垫片，并采用螺纹调节，使得调整压紧膜片时是垫片与紧固片或支撑片、以及垫片与阀杆或阀芯头之间的金属间摩擦，保护了非金属材料的膜片，大幅提高其使用寿命；采用本方案的这种先导结构，极大降低了执行部件需要的力和功率。
本方案还优化了膜片组件，取消了膜片外圈的垫片，改为采用螺纹紧固片和支撑片直接螺丝拧紧，并夹紧膜片外圈的结构，更加简化设计，使装配更加容易。
上述实施例只为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人士能够了解本发明的内容并加以实施，并不能以此限制本发明的保护范围，凡根据本发明精神实质所作的等效变化或修饰，都应涵盖在本发明的保护范围内。

Claims (5)

  1. 一种螺纹紧固式膜式先导大流量比例阀，包含阀体(1)、阀盖(2)、阀杆(3)、阀芯头(4)、弹片(5)和膜片组件；所述阀体(1)上设置有流体入口(6)和流体出口(7)，阀体(1)中设置有连通流体入口(6)和流体出口(7)的流道；所述阀盖(2)设置在阀体(1)上，阀杆(3)的上端与阀盖(2)配合，阀芯头(4)设置在阀杆(3)的下端，阀芯头(4)用于控制阀体(1)中的流道的开度；所述弹片(5)位于阀盖(2)中，阀杆(3)与弹片(5)配合，膜片组件设置在阀体(1)与阀盖(2)形成的腔体中，膜片组件的上侧形成封闭的压力平衡空间；所述阀杆(3)和阀芯头(4)上设置有先导孔(8)，先导孔(8)连通流体入口(6)和压力平衡空间；
    其特征在于：所述膜片组件包含膜片(11)、螺纹紧固片(12)、支撑片(13)和阀杆垫片(15)；所述螺纹紧固片(12)位于支撑片(13)的上侧，螺纹紧固片(12)与支撑片(13)通过紧固螺丝(14)固定连接，且螺纹紧固片(12)与支撑片(13)夹紧膜片(11)的外圈部位，阀杆(3)和阀芯头(4)配合阀杆垫片(15)来夹紧膜片(11)的内圈部位。
  2. 根据权利要求1所述的螺纹紧固式膜式先导大流量比例阀，其特征在于：所述螺纹紧固片(12)通过螺纹结构与阀体(1)配合，螺纹紧固片(12)上设置有与阀体(1)和阀盖(2)配合的密封圈(16)。
  3. 根据权利要求1所述的螺纹紧固式膜式先导大流量比例阀，其特征在于：所述阀杆垫片(15)位于膜片(11)的上侧。
  4. 根据权利要求1所述的螺纹紧固式膜式先导大流量比例阀，其特征在于：所述阀盖(2)的上方设置有导磁架(21)，导磁架(21) 上设置有线圈骨架(22)，线圈骨架(22)上设置有线圈(23)，阀杆(3)的上端连接有导磁体(24)，导磁体(24)与线圈(23)通过电磁感应配合。
  5. 根据权利要求1所述的螺纹紧固式膜式先导大流量比例阀，其特征在于：所述阀芯头(4)的下侧设置有密封垫(9)。
PCT/CN2022/101489 2022-06-22 2022-06-27 一种螺纹紧固式膜式先导大流量比例阀 WO2023245691A1 (zh)

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