WO2004085894A1 - Multiple valve with extra tough sealing performance - Google Patents

Multiple valve with extra tough sealing performance Download PDF

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Publication number
WO2004085894A1
WO2004085894A1 PCT/CN2004/000255 CN2004000255W WO2004085894A1 WO 2004085894 A1 WO2004085894 A1 WO 2004085894A1 CN 2004000255 W CN2004000255 W CN 2004000255W WO 2004085894 A1 WO2004085894 A1 WO 2004085894A1
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WIPO (PCT)
Prior art keywords
valve
composite
super
spool
hard
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PCT/CN2004/000255
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French (fr)
Chinese (zh)
Inventor
Ting Zhu
Original Assignee
Ting Zhu
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Publication of WO2004085894A1 publication Critical patent/WO2004085894A1/en

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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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/53—Mechanical actuating means with toothed gearing
    • F16K31/535—Mechanical actuating means with toothed gearing for rotating 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
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
    • F16K11/14—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle
    • F16K11/16—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle which only slides, or only turns, or only swings in one plane
    • F16K11/163—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle which only slides, or only turns, or only swings in one plane only turns
    • F16K11/166—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by one actuating member, e.g. a handle which only slides, or only turns, or only swings in one plane only turns with the rotating spindles at right angles to the closure members

Definitions

  • the technical problem to be solved by the present invention is to provide a valve capable of tight sealing and high service life when used in a high temperature and high pressure environment, aiming at the shortcomings existing in the prior art.
  • the sealing surface of the valve core assembly should be made of cemented carbide material or be coated with a cemented carbide material coating.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Taps Or Cocks (AREA)
  • Sliding Valves (AREA)
  • Mechanically-Actuated Valves (AREA)

Abstract

The invention relates to multiple valve with extra tough sealing perfonnance which consists of valve house, side valve house,control component (dynamoelectric, hand-operated, pneumatic), supporting, gearing and combinatorial valve seat, combinatorial valve member. Wherein said control component connects with two initiative gears and two passive gears of the gearing, all of these elements compose a linkage component.The control component controls the combinatorial valve member (a) directly and the two passive gears of the linkage component controls the combinatorial valve member (b) directly and independently , two independent seal elements are setted on the channel of valve house. Moreover, the sealing valve member is made of extra tough alloy or daubed by the alloy. The multiple valve can seal solely or complex, and protect each other. The multiple valve can be used in the electric and landification environment where the temperature and pressure are high.

Description

超硬密封复合阀 技术领域 本发明涉及 种超硬密封复合阀， 属压力阀门类， 尤苴、是指适用于电力 、 石化等行业的高温、 高压系统中 使用的防泄漏阀门 背 技术 据本发明人对电力、 石化行业的调研， 该行业 目前 使用的阀门 ， 几乎涉及当前阀门行业的各类阀门， 但主 要是以截止阀 、 球阀 、 闸阀 、 碟阀、 旋塞阀等为主。 阀 门一其顾名 ffl义的作用是起关断作用， 即要求关闭时应 该兀全关死无内漏 要求开启时则应该完全打开， 不作 流使用 巨前上述行业使用的阀门其最明显的结构特 卢有 ― ， 苴、 均为单阀体； 其二均为单密封结构。 上述 各类阀门虽然並  TECHNICAL FIELD The present invention relates to a super-hard sealed composite valve, which belongs to the pressure valve category, and particularly refers to a leak-proof valve back technology suitable for use in high-temperature and high-pressure systems in the electric power, petrochemical and other industries. According to people's research on the power and petrochemical industries, the valves currently used in the industry almost involve various types of valves in the current valve industry, but they are mainly based on globe valves, ball valves, gate valves, disc valves, plug valves, etc. The valve, as its name implies, plays a shut-down role, that is, it should be fully closed when it is required to be closed, and there should be no internal leakage when it is required to be opened. It should be fully opened when it is opened. Telu has ―, 苴, all are single valve bodies; the second are all single seal structures. Although the above types of valves
曰 遍有比较简单结构的优点， 但对于应用 于电力、 石化等行业 ¾■ 曰  Although it has the advantages of a relatively simple structure, it is widely used in power and petrochemical industries.
问 ½L 、 压系统的该类阀门来讲， 该 统中 劣的工况 ( ¾ 曰  In terms of this type of valve of ½L, pressure system, the poor working conditions (¾ said
、同 & a 、 高压、 大压差）经常造成阀 门在短时间内或极少的操作次数后即开始内漏， 产生这 种内漏的原因是 刖所使用的传统阀门的密封面易被所 输送的高 、〉曰 、 高压物流氧化或冲蚀。 因此， 多年来， 虽 然众多生产厂家不断在阀门结构及密封面材料上进行改 进 却始 、 没有摆脱单密封面密封和单阀体的传统结构 设计思路  , Same & a, high pressure, large pressure difference) often cause the valve to start leaking in a short period of time or after a small number of operations. The reason for this leaking is that the sealing surface of the traditional valve used is easy to be damaged. The conveyed high, high and low pressure streams are oxidized or eroded. Therefore, for many years, although many manufacturers have continued to improve the valve structure and sealing surface materials, they have not started to get rid of the traditional structural design ideas of single sealing surface seal and single valve body.
综上所述可见 ： 寻求一种全新结构、 适用于电力和 石化行业高 、〉曰 、 髙压环境使用的理想阀门， 既是阀门生  In summary, it can be seen that: seeking a new structure, suitable for the high-pressure, high-pressure, and high-pressure environment of the power and petrochemical industries, is an ideal valve.
1 1
确 认 本 产厂家也是所有电力及石化系统使用单位的一种期望。 发明 内容 Confirm this Manufacturers are also an expectation of all power and petrochemical system users. Summary of the invention
本发明所要解决的技术问题是：针对现有技术中存 在的不足之处， 而提供一种在高温、 高压环境使用时能 密封严密、 使用寿命高的阀门。  The technical problem to be solved by the present invention is to provide a valve capable of tight sealing and high service life when used in a high temperature and high pressure environment, aiming at the shortcomings existing in the prior art.
本发明所采用的技术方案是：该超硬密封复合阀 由 阀体、 侧阀体、 控制机构、 支架、 传动机构及阀座 、 阀芯组成，其特征在于所述控制机构通过与该控制机构 联接的传动机构上的二个主动齿轮与二个被动齿轮啮 合， 形成一个联动机构， 并且通过控制机构直接操纵阔 芯组合件 a , 通过联动机构上的二个被动齿轮直接独立 操纵阀芯组合件 b， 在阀体、 侧阀体内 的过流通道上设 置并组成两道独立的前后密封形态的复合密封结构。  The technical solution adopted by the present invention is that the super-hard sealed composite valve is composed of a valve body, a side valve body, a control mechanism, a support, a transmission mechanism, a valve seat, and a valve core, and is characterized in that the control mechanism passes through the control mechanism and the control mechanism. The two driving gears on the coupled transmission mechanism mesh with the two passive gears to form a linkage mechanism, and the wide core assembly a is directly controlled by the control mechanism, and the spool assembly is directly and independently controlled by the two passive gears on the linkage mechanism. b. A composite sealing structure is provided on the flow passages in the valve body and the side valve body and forms two independent front and rear sealing forms.
所述的复合密封结构中的两阀芯阀座组合形式可以 是截止阀与球阀阀芯组件的结合系列， 也可以是截止阀 和截止阀阀芯组件系列， 还可以是截止阀与球阀、 闸阀、 碟阀及旋塞阀中的任一种的互为组合形式。  The two-spool valve seat combination form in the composite sealing structure may be a combination series of a globe valve and a ball valve spool assembly, or a series of a globe valve and a globe valve spool assembly, or a globe valve, a ball valve, and a gate valve Any one of the valve, the disc valve and the plug valve is combined with each other.
所述的复合密封结构中的前、 后两道阀芯组件， 在 同时关闭或开启过程中， 其一端的密封机构的完全关闭 或开启稍滞后于另一端密封机构的完全关闭或开启 。  During the simultaneous closing or opening of the two front and rear spool components in the composite sealing structure, the complete closing or opening of the sealing mechanism at one end lags slightly behind the complete closing or opening of the sealing mechanism at the other end.
所述阀芯组件的密封面应由超硬质合金材料做成， 或涂有超硬合金材料涂层。  The sealing surface of the valve core assembly should be made of cemented carbide material or be coated with a cemented carbide material coating.
根据以上技术方案提出的这种超硬密封复合阀， 与 现有各类用于同类工况环境中的单体阀相比， 其优点如 下： Compared with the existing various types of monomer valves used in the same working environment, the advantages of the super-hard sealed composite valve proposed according to the above technical solution are as follows: Down:
1、 由于采用两道以上的密封结构， 使前端密封结构 在关闭过程中起减压、 节流、 密封作用， 对后端密封结 构起到了极好的保护作用， 因而使后端密封在前端密封 泄漏后仍能有效保证严密密封。  1. Due to the use of two or more sealing structures, the front-end sealing structure plays a role of pressure reduction, throttling and sealing during the closing process, which has an excellent protection effect on the rear-end sealing structure, so the rear-end sealing is sealed at the front end. It can still effectively ensure a tight seal after leakage.
2、 由于釆用上述复合结构， 并且在密封面材料上采 用超硬特种硬质合金或涂有超硬合金材料涂层， 因而极 大地提高了密封面的抗压强度， 抗高温氧化性能及抗冲 刷性能， 所以能使阀门整体上的使用寿命大为提高。  2. Because the above composite structure is used, and the sealing surface material is made of super hard special cemented carbide or coated with super hard alloy material coating, the compressive strength, high temperature oxidation resistance and resistance of the sealing surface are greatly improved. The flushing performance can greatly improve the service life of the valve as a whole.
附图说明 BRIEF DESCRIPTION OF THE DRAWINGS
附图 1 为本发明的结构示意图。  FIG. 1 is a schematic structural diagram of the present invention.
图中 ： 1、 阀体； 2、 下支架； 3、 填料压盖； 4、 止 转块； 5、 主动齿轮 a; 6、 主动齿轮 b; 7、 截止密封杆； 8、 控制机构； 9、 支架上板； 10、 被动齿轮 a; 11、 被 动齿轮 b; 12、 上支架； 13、 支架下板； 14、 球密封杆； 15、 转接套； 16、 侧阀体； 17、 球形组合阀芯 b； 18、 球形组合阀座； 19、 截止形组合阀芯 a; 20、 截止组合 阀座。 In the figure: 1. Valve body; 2. Lower bracket; 3. Packing gland; 4. Stop block; 5. Drive gear a; 6. Drive gear b ; 7. Cut-off seal rod; 8. Control mechanism; 9. Upper plate of bracket; 10, passive gear a ; 11, passive gear b; 12, upper bracket; 13, lower plate of bracket; 14, ball seal rod; 15, adapter sleeve; 16, side valve body; 17, ball combination valve Core b; 18, spherical combination valve seat; 19, cut-off combination valve core a ; 20, cut-off combination valve seat.
具体实施方式 detailed description
以下结合附图进一步阐述本发明，并给出发明的实 施例。 其中 图 1 给出的是本发明 以截止密封、 球密封相 配合组成的本发明的一种基本构思形式。  The invention is further explained below with reference to the drawings, and embodiments of the invention are given. FIG. 1 shows a basic concept of the present invention, which is composed of a stop seal and a ball seal.
以下就截止密封一球密封系列为例说明其操作原 理及其结构。 图中展示的阀门为全关位置， 当控制机构 （8)逆时 针旋转， 带动截止密封杆（7)逆时针旋转， 并带动与之 固接的截止组合阀芯 a 向上移动，逐渐开启与截止密封 杆（7)固定连接的主动齿轮 a和主动齿轮 b 同时旋转，， 因主动齿轮 a (6)与被动齿轮 a (10)此时处于脱离状态， 主动齿轮 a (6)空转， 被动齿轮 a (10)静止不动， 而主动 齿轮 b (5)此时带动被动齿轮 b (ll)顺时针旋转，且被动 齿轮 b (ll)与球密封杆 （14)以螺纹连接， 因为一左旋螺 纹， 故被动齿轮 b 边旋转边沿螺纹向上移动， 当截止组 合阀芯 a行程即将到位时，被动齿轮 b 上的端面离合器 与被动齿轮 a下的端面离合器啮合， 并带动被动齿轮 a 旋转， 此时被动齿轮 a与主动齿轮 a 啮合， 而被动齿轮 a与球密封杆为固接， 则带动球密封杆旋转， 使球形组 合阀芯 b 旋转， 当旋转到 90° 时， 上支架一定位杆阻 止继续旋转， 此时截止组合阀芯 a 行程已完全开启到 位， 球形组合阀芯 b 也已完全开启 ， 此时该阀门完全开 启 ， 完成完全开启操作。 在此过程中， 当球密封阀芯 b 未动作前， 截止密封阀芯 a是处在无介质流动状态， 无 压差状况下动作，因此截止阀芯 a是在无冲刷状况下轻 松无损开启 。 The following is an example of the operation principle and structure of the cut-off seal and one-ball seal series. The valve shown in the figure is in the fully closed position. When the control mechanism (8) rotates counterclockwise, the stop seal rod (7) rotates counterclockwise, and the cut-off combination valve core a fixed to it moves upward, gradually opening and closing. The driving gear a and the driving gear b fixedly connected to the sealing rod (7) rotate simultaneously. Because the driving gear a (6) and the driven gear a (10) are in a disengaged state at this time, the driving gear a (6) is idling, and the driven gear a (10) The stationary gear b (5) drives the passive gear b (ll) to rotate clockwise at this time, and the passive gear b (ll) and the ball seal rod (14) are screwed, because a left-handed thread, Therefore, the passive gear b moves upward while rotating along the thread. When the cut-off combination spool a is about to reach its position, the end clutch on the passive gear b meshes with the end clutch under the passive gear a, and drives the passive gear a to rotate. At this time, the passive gear a meshes with the driving gear a, and the passive gear a is fixedly connected with the ball sealing rod, which drives the ball sealing rod to rotate and rotates the spherical combination spool b. When it rotates to 90 °, a positioning rod on the upper bracket prevents it from continuing to rotate At this time, a cutoff spool stroke combination is fully open place, a combination of the spherical valve body b has a fully open, at which time the valve is fully open, fully opened to complete the operation. In this process, before the ball seal spool b is not activated, the shut-off spool a is in a state of no medium flow and operates under no pressure difference. Therefore, the shut-off spool a opens easily and non-destructively without scouring.
当阀 门为全开状态关闭时，控制机构顺时针旋转通 过截止密封杆带动与之固接的主动齿轮 a， 带动与之啮 合状态的被动齿动 a旋转，而被动齿轮 a与球密封杆（14) 固接， 则直接带动球形组合阀芯 b 旋转 90 ° 时， 主动 齿轮 a与被动齿轮 a脱离， 此时主动齿轮 a空转， 被动 齿轮则定位在 90 ° 位置静止， 球密封此时完全关闭， 继续旋转控制机构， 截止密封杆继续下降， 直至截止组 合阀芯 a 与阀座严密密封，直到控制机构关行程到位为 止， 此时该阀门完全关闭， 此时完成阀门的完全关闭操 作。 在此过程中， 因球密封首先关闭， 截止密封处于无 介质流动， 压差为零状态， 故截止阀芯 a 总是在无损、 无冲刷状况下轻松严密关闭。 When the valve is closed in the fully open state, the control mechanism rotates clockwise through the cut-off sealing rod to drive the driving gear a fixed to it, and drives the passive gear a in the meshing state to rotate, and the passive gear a and the ball sealing rod (14 ) Fixed connection, when the spherical combination spool b is rotated 90 °, Gear a is disengaged from passive gear a. At this time, the driving gear a is idling, and the passive gear is positioned at 90 °. The ball seal is completely closed at this time. Continue to rotate the control mechanism, and the cut-off seal rod continues to descend until the cut-off combination valve core a and The valve seat is tightly sealed until the closing stroke of the control mechanism is in place. At this time, the valve is completely closed. At this time, the valve is completely closed. In this process, because the ball seal is closed first, the cut-off seal is in a state of no medium flow, and the pressure difference is zero. Therefore, the cut-off valve core a is always easily and tightly closed without damage and erosion.

Claims

权 利 要 求 Rights request
1、 一种超硬密封复合阀， 由 阀体（1)、侧阀体 （16)、 控制机构 （8)、 下支架 （2)、 上支架 （12)、 传动机构及组 合阀座 （20)、 组合阀座 （18)、 阀芯 （19)、 阀芯 （17)组成， 其特征在于所述控制机构 （8)通过与该控制机构联接的 传动机构上的主动齿轮 a (5)、 主动齿轮 b (6)与被动齿 轮 a(10)、 被动齿轮 b (ll)啮合， 形成一个联动机构， 并且通过控制机构直接操纵阀芯组合件 a (19)，通过联 动机构上的被动齿轮（11)、被动齿轮 （10)直接操纵阀芯 组合件 b (17)， 在阀体（1)、 侧阀体（16)内 的过流通道 上设置并组成两道独立的前后密封形态的复合密封结 构。 1. A super-hard sealed composite valve, comprising a valve body (1), a side valve body (16), a control mechanism (8), a lower bracket (2), an upper bracket (12), a transmission mechanism and a combined valve seat (20 ), A combined valve seat (18), a valve core (19), and a valve core (17), characterized in that the control mechanism (8) uses a driving gear a (5) on a transmission mechanism coupled to the control mechanism, The driving gear b (6) is meshed with the passive gear a (10) and the passive gear b (ll) to form a linkage mechanism, and the spool assembly a (19) is directly manipulated by the control mechanism, and the passive gear on the linkage mechanism ( 11) The passive gear (10) directly manipulates the spool assembly b (17), and the composite seals are arranged on the flow passages in the valve body (1) and the side valve body (16) and form two independent front and rear seals. structure.
2、 根据权利要求 1 所述的超硬密封复 阀， 其特 征在于所述的复合密封结构中 的两阀芯阀座组合形式 是截止阀和截止阀以及与球阀、 闸阔、 碟阔 1、 旋塞阀组 成的 列复合形式。  2. The super-hard sealed double valve according to claim 1, characterized in that the two-spool valve seat combination form in the composite sealing structure is a globe valve and a globe valve, and is connected with a ball valve, a gate, a disk 1, Composite form consisting of a plug valve.
3、 根据权利要求 1 所述的超硬密封复 阀， 苴、特 征在于所述的复合密封结构中 的两阀芯阀座组合形式 是球阀和球阀， 以及截止阀、 闸阀、 碟阀、 旋塞阀组成 的 统复合阀形式。  3. The super-hard sealed double valve according to claim 1, characterized in that the combination form of the two spool valve seats in the composite sealing structure is a ball valve and a ball valve, and a stop valve, a gate valve, a disc valve, a plug valve Composed of unified compound valve form.
4、 根据权利要求 1 所述的超硬密封复入阀， 其特 在于所述的复合密封结构中的两阀芯阀座组合形式 是闸阀与碟阀、 球阀、 旋塞阀、 截止阀组成的系列复 阀形式 4. The super-hard sealed reentry valve according to claim 1, wherein the combination form of the two spool valve seats in the composite sealing structure is a series of gate valve and disc valve, ball valve, plug valve and globe valve. Double valve form
5、 根据权利要求 1 所述的超硬密封复合阀， 其特 征在于所述的复合密封结构中 的两阀芯阀座组合形式 是碟阀与球阀、 截止阀、 旋塞阀、 闸阀组成的系列复合 阀形式。 5. The super-hard sealed composite valve according to claim 1, wherein the combination form of the two spool valve seats in the composite sealing structure is a series of composites composed of a disc valve, a ball valve, a globe valve, a plug valve, and a gate valve. Valve form.
6、 根据权利要求 1 所述的超硬密封复合阀， 其特 征在于所述的复合密封结构中 的两阀芯阀座组合形式 是旋塞阀与球阀、 截止阀、 闸阀、 碟阀组成的复合阀形 式。  6. The super-hard seal composite valve according to claim 1, wherein the combination form of the two spool valve seats in the composite seal structure is a composite valve composed of a plug valve and a ball valve, a globe valve, a gate valve, and a disc valve. form.
7、 根据权利要求 1 所述的超硬密封复合阀， 其特 征在于所述的复合密封结构中的前后两道阀芯，在同时 关闭或开启过程中，其一端的密封机构的完全关闭或开 启滞后于另一端密封机构的完全关闭或开启 。  7. The super-hard seal composite valve according to claim 1, characterized in that the front and rear two spools in the composite seal structure are completely closed or opened during the simultaneous closing or opening process of one end of the sealing mechanism. It lags behind the complete closing or opening of the sealing mechanism at the other end.
8、 根据权利要求 1 所述的超硬密封复合阀， 其特 征在于阀门密封面由超硬合金材料制作。  8. The super-hard sealed composite valve according to claim 1, characterized in that the valve sealing surface is made of a super-hard alloy material.
9、 根据权利要求 1 所述的超硬密封复合阀， 其特 征在于阀门密封面上涂有超硬合金涂层。  9. The super-hard sealed composite valve according to claim 1, characterized in that the sealing surface of the valve is coated with a super-hard alloy coating.
PCT/CN2004/000255 2003-03-26 2004-03-26 Multiple valve with extra tough sealing performance WO2004085894A1 (en)

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CN03118204.6 2003-03-26

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