WO2009036616A1 - Robinet à tournant conique flottant - Google Patents

Robinet à tournant conique flottant Download PDF

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Publication number
WO2009036616A1
WO2009036616A1 PCT/CN2007/003191 CN2007003191W WO2009036616A1 WO 2009036616 A1 WO2009036616 A1 WO 2009036616A1 CN 2007003191 W CN2007003191 W CN 2007003191W WO 2009036616 A1 WO2009036616 A1 WO 2009036616A1
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WO
WIPO (PCT)
Prior art keywords
valve
sleeve
conical plug
core
floating
Prior art date
Application number
PCT/CN2007/003191
Other languages
English (en)
French (fr)
Inventor
Shijun Yu
Original Assignee
Shijun Yu
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shijun Yu filed Critical Shijun Yu
Priority to US12/671,608 priority Critical patent/US20110198525A1/en
Priority to JP2010525178A priority patent/JP5242689B2/ja
Publication of WO2009036616A1 publication Critical patent/WO2009036616A1/zh

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/02Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having conical surfaces; Packings therefor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/08Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
    • F16K11/083Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with tapered plug
    • F16K11/0833Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with tapered plug having all the connecting conduits situated in a single plane perpendicular to the axis of the plug

Definitions

  • the invention relates to a floating cone plug valve, in particular to a floating cone plug valve for changing the direction or opening and closing of a fluid, which can be applied to a straight through, a three-way, a four-way manual or the like for high temperature fluctuation, high pressure and high sealing requirements.
  • Electric valve belongs to the field of valve technology.
  • the plug valve Due to its simple structure, rapid switching and low pressure drop, the plug valve is widely used within a certain range.
  • a sealing and lubricating film must be established between the tapered outer surface of the current plug valve and the tapered inner surface of the valve chamber, the axial seal is pressed at the large end of the cock, and the plug valve retains the same seal while rotating. Compared with the pressure, the torque during rotation is large, and the wear of the sealing surface is also large. When subjected to high temperature impact, the vibration will damage the lubricating film, causing the cock to be unable to rotate and open and close on the valve cavity;
  • the plug spool In use, due to the high temperature or sudden increase of the pipeline pressure, the plug spool once disengaged the valve chamber, causing the pipeline medium to flow into the sealed chamber, which may wash away the sealing film;
  • plug valves in the industry that first lift the cock and then press it down, such as the lift plug valve and the double action plug valve.
  • more than two operating mechanisms or more than two actions are required to make the valve structure complicated and inconvenient to operate, and thus such improved plug valves are not widely used.
  • the technical solution of the present invention provides a floating conical plug valve, which comprises a valve body, an inlet and an outlet are arranged on both sides of the valve body, and a through-flow through the medium is provided between the inlet and the outlet.
  • valve core is a floating conical plug valve core movable up and down in the valve cavity, and the lower end of the rotary transmission sleeve is provided with at least one torque transmission pin having a tapered bottom end, and the torque transmission is provided at the upper end of the valve core.
  • the lower part of the force transmission slider is provided with a pressure plate, which is fixed on the valve core by bolts, and a lock nut for sealing the valve stem is arranged at the upper end of the valve cover through the pressure sealing ring, and the a bearing is arranged between the valve cover and the rotary transmission sleeve.
  • the elastic gasket has a telescopic inner sleeve which can rotate synchronously with the rotary transmission sleeve and the valve stem but can move up and down with the valve rod through the b bearing between the rotary transmission sleeve and the valve stem, and the outer sleeve of the telescopic inner sleeve is provided with a mutual threaded fit.
  • Retractable jacket Retractable jacket.
  • the unidirectional rotation of the operating rod of the invention enables the valve core to be lifted off the valve body first, then rotated to the limit position, and then pressed and applied with a certain sealing specific pressure, since the valve body is completely disengaged from the valve body during the rotation, the valve core It has minimal wear when moving up and down, has little friction when rotating, and has no wear on the sealing surface, allowing quick switching of fluid with very little torque.
  • the invention only needs one rotation of the operating mechanism in one direction, so that the valve core can be lifted up and raised at a certain angle to press a seal; the sealing surface of the valve chamber and the valve core does not require a lubricating film, and there is no friction friction and wear. It is used as a manual or electric valve for straight-through, three-way, four-way, etc. for high temperature fluctuation, high pressure, and high sealing requirements.
  • the sealing pressure P/sin ct is obtained in the axial direction of the conical valve core, and the sealing pressure is 6%. Therefore, the conical plug valve has an amplification effect when the compression force is applied in the axial direction, and has the characteristics of reliable sealing.
  • the floating conical plug structure of the present invention is characterized in that the conical plug valve core is floating when opening and closing, that is, the one-way rotational movement of the valve operating rod is converted into the following processes through the telescopic and transmission mechanism:
  • valve core floats up and the valve body is completely disengaged under the action of the bottom spring of the spool;
  • the rotating transmission sleeve rotates the valve core to a certain angle and limits through the torque transmitting pin and the torque transmitting slider;
  • the invention has the advantages that only one rotation of the operating mechanism can be performed, and the plug valve core can be lifted up and raised by a certain angle to press a seal; the sealing surface of the valve chamber and the valve core does not need a lubricating film, no rotation Friction, low wear, good sealing and simple structure.
  • Figure 1 is a schematic view showing the structure of a floating conical plug valve
  • FIG. 2 is a schematic diagram of a valve plug structure and a limit position of a floating conical plug valve
  • Figure 3 is a schematic diagram showing the structure and cooperation of a torsion force limiting mechanism for a floating conical plug valve to rotate a spool;
  • Figure 4 is a schematic view of the valve core floating and telescopic mechanism when the floating cone plug valve is opened;
  • Figure 5 is a schematic view of the position of the state torque torsion mechanism of Figure 4;
  • Fig. 6 is a schematic view showing the position of the torsion force limiting mechanism disengaged and juxtaposed after the valve core is rotated by 90 degrees
  • Fig. 7 is a schematic view showing the position of the state torque limiting mechanism of Fig. 6;
  • FIG. 8 is a schematic structural view of a floating conical plug valve provided with a spring pressure plate steel ball according to Embodiment 2;
  • FIG. 9 is a schematic cross-sectional view of a fourth embodiment of a four-way floating conical spiral plug valve core;
  • FIG. 11 is a schematic view showing the structure of the rotating transmission sleeve and the active magnet of the embodiment 4;
  • Figure 12 is a schematic view showing the structure of a magnetic transmission floating conical plug valve of Embodiment 5;
  • Figure 13 is a schematic view showing the structure of the telescopic outer casing and the telescopic seat of the embodiment 5;
  • Figure 14 is a schematic view showing the structure of the magnetic drive active rotor of the embodiment 5.
  • FIG. 1 it is a schematic diagram of a floating conical plug valve structure, the valve is in a closed state, the floating conical plug valve includes a valve body 1 , the valve body 1 has an inlet 32 and an outlet 33 , and the valve body 1 is provided with a a through passage 30 through which the medium flows, the valve further including a conical valve chamber 31 intersecting the passage 30, and a rotatably disposed in the valve chamber 31 for blocking the valve in a closed state
  • the conical spool 2 of the passage 30, the spool 2 is a floating conical plug spool movable up and down in the valve chamber 31, the valve further comprising a rotary drive sleeve 10 and a valve stem for rotating the spool 2 7, the rotating transmission sleeve 10 is sleeved outside the valve stem 7, the upper portion of the valve core 2 and the bottom of the valve body 1 is provided with a floating spring 19, the lower end of the valve cover 3 is provided with a limit pin 15, and a lock nut
  • the rotating transmission sleeve 10 is integrated with the valve stem 7 and has one, two or more torque transmitting pins 27 mounted on the lower end. In this embodiment, two are installed at the upper end of the valve core 2
  • the torque transmitting pin 27 has an equal number of torque transmitting sliders 23, and the torque transmitting pin 27 rotates with the rotating transmission sleeve 10 and the valve stem 7 and collides with the torque transmitting slider 23 at a certain angle, and the torque transmits the top end of the slider 23.
  • a sliding spring 26 is mounted between the spool 2 and the torque transmitting slider 23, and a pressure plate 24 is provided on the upper portion of the torque transmitting slider 23 to fix the torque transmitting slider 23 to the spool 2 via the bolt 25, the torque
  • the lower end of the transmission pin 27 is tapered, and its taper coincides with the taper of the tip end of the torque transmitting slider 23.
  • FIG. 2 it is a schematic diagram of a valve plug structure and a limit position of a floating conical plug valve.
  • the valve core 2 is provided with a flow passage 2-3 laterally, and two limit stops 2-1 are arranged on the upper portion.
  • the two limit stops 2-1 are at an angle greater than 90 degrees, and the limit pin 15 at the lower end of the valve cover 3 is between the two limit stops 2-1 of the spool 2, and the limit pin is closed when the valve is closed and opened. 15 respectively collides with one of the limit stops 2-1.
  • the spool 2 is limited to rotate within 90 degrees.
  • FIG. 3 it is a torsion force limiting mechanism structure and a cooperation diagram of a floating conical plug valve for rotating a valve core, and the torque transmission pin 27, the torque transmission slider 23, the sliding spring 26, the pressure plate 24, and the bolt 25 are composed.
  • the torque limiting mechanism has the function of transmitting the rotation of the valve stem 7 to the valve core 2 when the valve body 2 floats and disengages the valve chamber 31, so that the valve core 2 is rotated by a certain angle and then the limit is disengaged. In this embodiment, the rotation is 90 degrees.
  • the torque limiting mechanism is configured to disengage the spool 2 after rotating the valve core 2 by a certain angle.
  • the torque transmitting slider 23 of the transmission pin 27 is a beveled surface anastomosis. The position and structural shape of all the torque limiting mechanisms are changed without changing their functions and properties. Deng belongs to the scope of the present invention.
  • An elastic gasket 8 is provided between the bonnet 3 and the rotary transmission sleeve 10 via the a bearing 9.
  • the elastic gasket 8 functions to seal the specific pressure of the upper portion of the valve core 2, and ensures the sealing pressure of the valve core 2 and the valve chamber 31.
  • the elastic gasket 8 can be disposed at other appropriate positions in addition to the position of the embodiment. For example: It is arranged between the a bearing 9 and the rotary drive sleeve 10 or between the rotary drive sleeve 10 and the b bearing 11, and the position and structural shape of all the elastic spacers 8 are changed without changing their functions.
  • a telescopic inner sleeve 12 that rotates synchronously with the valve stem 7 and is movable up and down with the valve stem 7, and the telescopic inner sleeve 12 is provided with a telescopic outer sleeve 13 which is screwed with each other, and the lower end of the telescopic inner sleeve 12 or the telescopic outer sleeve 13 passes through the c bearing 14 Pressed on the valve core 2, the lower end of the telescopic outer casing 13 has an anti-rotation pin 13-1 for preventing the expansion sleeve 13 and the valve core 2 from rotating with each other, and the valve core 2 is provided with the anti-rotation pin 13-1.
  • the anti-rotation hole 2-4 prevents the telescopic outer casing 13 and the spool 2 from rotating relative to each other.
  • the telescoping inner sleeve 12 and the telescopic outer sleeve 13 is a single-head or a multi-headed thread with a pitch of 0. 5-10 mm.
  • the valve core 2 is provided with a plurality of longitudinally extending balance holes 2-2, which can balance the pressure of the valve core 2 when floating and pressing, so as not to increase the floating and pressing pressure due to the residual pressure of the fluid, the spool 2 cone half angle is 2-30 degrees.
  • the center of the upper portion of the valve body 2 is provided with a core hole 2-5, and the lower portion of the wide rod 7 is provided with a fixed core pin 7-1, and the fixed core pin 7-1 is inserted into the core hole 2-5.
  • valve When working, as shown in Figure 1, the valve is closed, assuming that the valve stem 7 rotates clockwise, when the telescopic outer casing 13 is below, the telescopic inner sleeve 12 is on the upper side, when the valve is opened, The valve stem 7 rotates counterclockwise, and the rotary transmission sleeve 10 and the torque transmitting pin 27 are integrally rotated with the valve stem 7 to rotate counterclockwise.
  • the telescopic inner sleeve 12 and the valve stem 7 rotate synchronously, and the telescopic outer sleeve 13 and the valve core 2 The rotation can not be generated.
  • the telescopic inner sleeve 12 and the telescopic outer sleeve 13 can be rotated counterclockwise, that is, the telescopic outer sleeve 13 is moved up, the telescopic inner sleeve 12 is moved downward, and the two are contracted.
  • the telescopic inner sleeve 12 and the valve stem 7 can be The axial movement, the result is that the valve core 2 floats under the action of the floating spring 19 until the upper portion of the telescopic inner sleeve 12 and the telescopic outer casing 13 are flush, and the valve core 2 and the valve chamber 31 are completely disengaged at this time, as shown in the figure.
  • the telescopic outer casing 13 continues to move upward, and the telescopic inner sleeve 12 moves downward, and both of them are elongated, and the inner sleeve is stretched.
  • the lower end of the 12 is pressed on the valve core 2 by the c-bearing 14, and the upper end of the telescopic outer casing 13 is pressed against the rotary drive sleeve 10 by the b-bearing 14 and the sealing valve is pressed and sealed, as shown in Fig. 6 and Fig. 7; It is reasonable to rotate the valve stem 7 clockwise to close the valve.
  • FIG. 8 a schematic diagram of a floating conical plug valve equipped with a spring platen steel ball for the second embodiment, the valve is in a closed state, and a steel ball is disposed between the center of the bottom of the valve body 2 and the spring 19 through the spring pressure plate 17. 18, the purpose of which is to reduce the friction between the spring 19 and the spool 2 when the spool is rotated, and the rest is the same as in the first embodiment.
  • FIG. 9 it is a schematic diagram of the structure of the four-way floating conical plug valve of Embodiment 3.
  • the valve core 2 is provided with two flow passages of 2-7, 2-8, and the valve body 1 is provided.
  • the four ports of angles D, E, F, G, the rest are the same as in the first embodiment, the mouth D and the mouth E communicate with the flow channel 2-7, the mouth F and the mouth G communicate with the flow channel 2-8, when the valve core 2 After rotating 90 degrees counterclockwise, the mouth D and the mouth F communicate with the flow path 2-7, and the mouth E and the mouth G communicate with the flow path 2-8; the purpose of fluid reversal is achieved.
  • the valve is open, the upper part of the spool 2 is provided with two passive magnets 16, and the symmetrical arrangement poles are opposite.
  • the rotary drive sleeve 34 has two active magnets 4, and the symmetrically arranged magnetic poles are opposite.
  • the passive magnet 16 and the active magnet 4 replace the torque limiting mechanism of the first embodiment, and the active magnet 4 is mounted on the rotary drive sleeve 34.
  • the rotary drive sleeve 34 is fixed integrally with the valve stem 7, and the rest is the same as in the first embodiment.
  • FIG. 11 it is a schematic structural diagram of a floating conical plug valve of Embodiment 5, the valve is in a closed state, and on the basis of Embodiment 4, the valve stem 7 at the upper end of the lock nut 5 is also passively mounted by the d bearing 29.
  • the rotor 20 is provided with a driving rotor 22 through the shielding sleeve 21 outside the passive rotor 20, a telescopic seat 28 between the lower end of the telescopic casing 13 and the center of the valve core 3, and a spring pad mounted under the telescopic seat 28.
  • the upper end of the telescopic seat 28 is provided with an anti-rotation pin 28-1 pin on the valve core 2 and an anti-rotation pin hole 2-6.
  • the lower end of the telescopic outer casing 13 is provided with an anti-rotation pin 13-1 pin.
  • the anti-rotation groove 28-1 provided on the seat 28 is for preventing the rotation of the telescopic seat 28 and the valve body 2, and the expansion sleeve 13 and the telescopic seat 28, as shown in FIG.
  • the passive rotor 20, as shown in FIG. 13, is composed of a magnetic strip 20-1 and a magnetic strip holder 20-2.
  • the magnetic strip holder 20-2 is provided with 4 to 12 magnetic strips 20-1 for radial magnetization.
  • the adjacent two magnetic strips 20-1 are magnetically opposite, so they must be even.
  • the active rotor 22, as shown in FIG. 14, is composed of a magnetic strip 22-1 and an active rotor sealing ring 22-2.
  • the active rotor sealing ring 22-2 is provided with the same number of magnetic strips as the passive rotor 20 and opposite in magnetic polarity. 22-1.
  • the shielding sleeve 21 is made of non-magnetic stainless steel, copper, plastic, etc., and the valve cover 3 is fixed by a lock nut 5, and the active rotor 22, the passive rotor 20 and the shielding sleeve 21 are coaxially mounted, and the active rotor 22 is
  • the magnetic strip has the same length as the magnetic strip of the passive rotor 20.
  • the active rotor 22 is provided with an active rotor sleeve 22-3. Due to the principle of opposite-phase suction, when the active rotor 22 rotates, the driven rotor 20 is rotated, and the valve stem 7 is rotated. The dynamic seal becomes a static seal, and if the shield sleeve 21 is welded to the valve cover 3, it becomes a leak-free valve.
  • the passive rotor 20 can also be made of a multi-pole magnetic ring, and the active rotor 22 is also made of a multi-pole magnetic ring.

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

Description

一种浮动圆锥旋塞阀
技术领域
本发明涉及一种浮动圆锥旋塞阀, 尤其涉及一种使流体改变方向或通断 的浮动圆锥旋塞阀, 可应用于高温度波动、高压、高密封要求的直通、三通、 四通等手动或电动阀, 属于阀门技术领域。
背景技术
由于结构简单、 开关迅速、 压降较小, 旋塞阀在一定范围内得到广泛应 用。
目前的旋塞阀的锥形外表面与阀腔的锥形内表面之间必须建立密封和润 滑膜, 在旋塞大端部置轴向密封比压, 且旋塞阀芯在旋转时仍保留相同的密 封比压, 故旋转时的转矩大, 密封面的磨损也大, 当受到高温冲击, 振动会 破坏润滑膜, 导致旋塞滞附阀腔上无法旋转启闭;
在使用中, 由于高温或管路压力突然升高, 旋塞阀芯一度脱开阀腔, 使 管路介质流入密封腔内, 可能会冲走密封膜;
工业上也出现过先提升旋塞再旋转后下压的旋塞阀, 如提升式旋塞阀和 双动作旋塞阀。 但都需要二付以上的操作机构或二个以上动作, 使阀结构复 杂, 操作不便, 因此这类改进的旋塞阀并没有得到广泛应用。
发明内容
本发明的目的是提供一种磨损小, 密封性好, 结构简单的浮动圆锥旋塞 阀。
为实现以上目的, 本发明的技术方案是提供一种浮动圆锥旋塞阀, 包括 阀体, 阀体两侧设有一个入口和一个出口, 入口和一个出口之间设有一供介 质流过的贯通的通道, 及与所述通道垂直相交的锥形的阀腔, 可旋转地设于 阀腔中的用于在阀的关闭状态下阻断所述通道的圆锥形阀芯, 该阀还包括一 用于转动阀芯的旋转传动套与阀杆,旋转传动套设于阀杆外,阀芯下部和阀体 底部之间设有上浮弹簧, 带有限位销的阀盖设于阔体上端, 其特征在于, 所 述的阀芯为可在阀腔上下移动的浮动圆锥旋塞阀芯, 旋转传动套下端设有至 少 1个下端为锥形的扭力传递销, .在阀芯的上端设有与扭力传递销相等数量 顶端为锥形的扭力传递滑块, 在阀芯和扭力传递滑块之间设有滑动弹簧, 扭 力传递滑块下部设有压板, 通过螺栓固定在阀芯上, 在阀盖上端通过压紧密 封环设有对阀杆密封的锁紧螺母, 阀盖和旋转传动套之间通过 a轴承设有弹 性垫片, 在旋转传动套与阀杆之间通过 b轴承设有可与旋转传动套与阀杆同 步转动的但可与阀杆上下移动的伸缩内套, 伸缩内套外设有相互螺纹配合的 伸缩外套。
本发明操作杆的单方向旋转能使阀芯先提升脱开阀体, 再旋转至限位, 然后再压紧并施加一定的密封比压, 由于在旋转时与阀体完全脱开, 阀芯只 有在上移及下压时有极小的磨损, 在旋转时只有很小的摩擦力, 而密封面无 磨损, 可以用很小的扭力进行快速切换流体。
当高温时由于阀芯与阀体的膨胀不一致,或阀芯与阀体的密封面磨损时, 轴向力通过弹性垫片施加在阀芯上, 可以自动补偿密封泄漏。
本发明只需一付操作机构的单方向旋转, 就可以使阀芯先上浮提升一旋 转一定角度一下压一密封; 阀腔与阀芯之密封面不需要润滑膜, 无旋转摩擦 及磨损, 可作为用于高温度波动、 高压、 高密封要求的直通、 三通、 四通等 手动或电动阀。
在圆锥阀芯的顶端轴向施加压紧力 P, 可得密封压力 P/sin ct ( α 为圆 锥半尖角), 当 ct =6度时, 密封压力为轴向压紧力的 9. 6倍, 因此圆锥旋塞 阀在轴向施加压紧力密封时具有放大作用, 具有密封可靠的特点。
本发明的浮动圆锥旋塞结构的特征是圆锥旋塞阀芯在开闭时是浮动的, 即阀门操作杆的单向旋转运动,通过伸缩与传动机构,转换为以下几个过程:
1.撤消阀芯顶端密封比压;
2.在阀芯底部弹簧作用下使阀芯上浮与阀体完全脱开;
3.旋转传动套通过扭力传递销及扭力传递滑块使阀芯旋转到一定角度并 限位;
4.阀芯下移并完全压紧并施加一定密封比压。
本发明的优点是只需一付操作机构的单方向旋转, 就可以使旋塞阀阀芯 先上浮提升一旋转一定角度一下压一密封; 阀腔与阀芯之密封面不需要润滑 膜, 无旋转摩擦, 磨损小, 密封性好, 结构简单。 附图说明
图 1为一种浮动圆锥旋塞阀结构示意图;
图 2为一种浮动圆锥旋塞阀阀芯结构及限位示意图;
图 3为一种浮动圆锥旋塞阀使阀芯旋转的扭力限制机构结构及配合示意 图;
图 4为浮动圆锥旋塞阀开启时阀芯上浮及伸缩机构配合示意图; 图 5为图 4状态扭力隈制机构的位置示意图;
图 6为阀芯旋转 90度限位后扭力限制机构脱开并置密封比示意图; 图 7为图 6状态扭力限制机构的位置示意图;
图 8为实施例 2设有弹簧压板钢球的一种浮动圆锥旋塞阀结构示意图; 图 9为实施例 3—种四通浮动圆锥旋塞阔阀芯平剖面示意图; 图 10为实施例 4主动磁铁、 被动磁铁代替扭力限制机构结构示意图; 图 11为实施例 4旋转传动套及主动磁铁配合示意图;
图 12为实施例 5—种磁传动浮动圆锥旋塞阀结构示意图;
图 13为实施例 5伸缩外套及伸缩座结构示意图;
图 14为实施例 5磁传动主动转子结构示意图。
具体实施方式
以下结合附图和实施例对本发明作进一步说明。
实施例 1 ,
如图 1所示, 为一种浮动圆锥旋塞阀结构示意图, 阀处于关闭状态, 该 浮动圆锥旋塞阀包括阀体 1, 阀体 1有一个入口 32和一个出口 33, 阀体 1 上设有一供介质流过的贯通的通道 30, 该阀还包括一与所述通道 30相交的 锥形的阀腔 31, 一可旋转地设于阀腔 31中的用于在阀的关闭状态下阻断所 述通道 30的圆锥形阀芯 2, 所述的阀芯 2为可在阀腔 31上下移动的浮动圆 锥旋塞阀芯, 该阀还包括一用于转动阀芯 2的旋转传动套 10与阀杆 7, 旋转 传动套 10套于阀杆 7外, 阀芯 2下部和阀体 1底部之间设有上浮弹簧 19, 阀盖 3下端设有限位销 15, 在阀盖 3上端安装锁紧螺母 5并压紧密封环 6对 阀杆 7密封。 所述的旋转传动套 10与阀杆 7装配后是一体的并且在下端安装有 1个、 2个或多个扭力传递销 27,本实施例为 2个,在阀芯 2的上端安装有与扭力传 递销 27相等数量的扭力传递滑块 23, 扭力传递销 27随旋转传动套 10与阀 杆 7—起旋转并在一定角度后与扭力传递滑块 23相碰, 扭力传递滑块 23的 顶端为锥形, 在阀芯 2和扭力传递滑块 23之间安装滑动弹簧 26, 扭力传递 滑块 23上部有压板 24通过螺栓 25把扭力传递滑块 23固定在阀芯 2上, 所 述的扭力传递销 27的下端为锥形, 其锥度与扭力传递滑块 23顶端锥形的锥 度相吻合。 ,
如图 2所示, 为一种浮动圆锥旋塞阀阀芯结构及限位示意图, 所述的阀 芯 2上横向设有流道 2-3, 上部设有 2个限位挡块 2-1, 2个限位挡块 2-1成 大于 90度夹角, 阀盖 3下端的限位销 15在阀芯 2的 2个限位挡块 2-1之间, 在阀关闭与开启时限位销 15分别与其中的一个限位挡块 2-1相碰.使阀芯 2 限制在 90度之内转动。
如图 3所示, 为一种浮动圆锥旋塞阀使阀芯旋转的扭力限制机构结构及 配合示意图, 所述的扭力传递销 27、 扭力传递滑块 23、 滑动弹簧 26、 压板 24、螺栓 25组成扭力限制机构,其作用是当阀芯 2上浮脱开阀腔 31时阀杆 7 的旋转传递给阀芯 2,使阀芯 2旋转一定角度后限位脱开,本实施例为旋转 90 度。
所述的扭力限制机构为实现使阀芯 2旋转一定角度后限位脱开, 除本实 施例为传递销 27扭力传递滑块 23是斜面吻合外, 还可以是二曲面吻合。 所 有扭力限制机构设置的位置及结构形状改变, 并不改变其作用及性质, 鄧属 于本发明范畴。
阀盖 3和旋转传动套 10之间通过 a轴承 9设有弹性垫片 8。
所述的弹性垫片 8其作用是置阀芯 2上部的密封比压, 保证阀芯 2与阀 腔 31密封压力,除本实施例的位置外弹性垫片 8还可以设置在其他适当位置, 例: 设置在 a轴承 9与旋转传动套 10之间或设置在旋转传动套 10与 b轴承 11之间,所有的弹性垫片 8设置的位置及结构形状改变, 并不改变其作用。
在旋转传动套 10与阀杆 7之间通过 b轴承 11设有可与旋转传动套 10 一
与阀杆 7同步转动的并可与阀杆 7上下移动的伸缩内套 12, 伸缩内套 12外 设有相互螺紋配合的伸縮外套 13, 伸縮内套 12或伸缩外套 13的下端通过 c 轴承 14压在阀芯 2上, 所述的伸缩外套 13 的下端有防止伸缩外套 13与阀 芯 2相互旋转的防转销 13-1, 在阀芯 2上设有与防转销 13-1相配合的防转 销孔 2-4, 使伸缩外套 13与阀芯 2不能相互转动。
所述的伸缩内套 12和伸缩外套 13组成的伸缩机构其相互配合的螺纹为 单头或多头,螺距为 0. 5— 10mm.
所述的阀芯 2设有纵向若干条上下贯穿的平衡孔 2-2, 可以使阀芯 2在 上浮及下压时平衡压力, 不至于因流体剩余压力而增加上浮及下压压力, 阀 芯 2圆锥半夹角为 2— 30度。
所述的阀芯 2上部的中心设有定芯孔 2-5, 所述的阔杆 7的下部设有定 芯销 7-1 ,定芯销 7-1插在定芯孔 2-5中形成动配合,使阀在开关过程阀芯 2 上浮脱开阀腔 31时, 阀芯 2与阀腔 31保持同心使阀芯 2的圆锥密封面与阀 腔 31之间的间隙均匀。
工作时,如图 1所示, 阀是关闭状态, 假定是阀杆 7顺时针旋转动作产 生的,这时的伸缩外套 13在下面,伸缩内套 12在上面,要对阀开启操作时, 把阀杆 7逆时针旋转, 而旋转传动套 10、 扭力传递销 27与阀杆 7是一体的 即一起逆时针旋转, 伸缩内套 12与阀杆 7是同步旋转的, 伸缩外套 13与阀 芯 2不能产生旋转,这时只能使伸缩内套 12与伸缩外套 13产生逆时针旋转, 即伸缩外套 13上移、伸缩内套 12下移, 2者产生收缩, 伸缩内套 12与阀杆 7可以轴向移动,这样的结果是阀芯 2在上浮弹簧 19的作用下上浮,直至伸 缩内套 12、伸缩外套 13的上部齐平, 这时的阀芯 2与阀腔 31完全脱开, 如 图 4所示, 而旋转传动套 10下部的扭力传递销 27锥形斜面正好与阀芯 2上 部的扭力传递滑块 23锥形斜面完全啮合,如图 5所示,阀杆 7的逆时针旋转 将带动阀芯 2—起转动至限位挡块 2-1与阀盖 3下端的限位销 15相碰,这时 阀芯 2约旋转了 90度,阀芯的流道 2-3与阀体 1的通道 30及入口 32和出口 33相通, 阀已在开启状态, 由于阀芯上的限位挡块 2-1与阀盖 3下端的限位 销 15相碰限位, 扭力传递销 27随阀杆 7—起逆时针继续旋转使阀芯 2上 部的扭力传递滑块 23向下移动,扭力传递销 27与扭力传递滑块 23脱开,这 时伸缩外套 13继续上移、 伸缩内套 12下移, 两者产生伸长, 同时伸缩内套 12下端通过 c轴承 14压在阀芯 2上、 伸缩外套 13上端通过 b轴承 14顶在 旋转传动套 10下把阀芯 2压紧并置密封比压, 如图 6、 图 7所示; 同理可以 把阀杆 7顺时针旋转动, 将把阀关闭。
实施例 2
如图 8所示, 为实施例 2设有弹簧压板钢球的一种浮动圆锥旋塞阀结构 示意图, 阀处于关闭状态, 在阀芯 2底部中心和弹簧 19之间通过弹簧压板 17设有钢球 18, 其目的是为减少阀芯转动时弹簧 19与阀芯 2的摩擦力, 其 余与实施例 1一样。
实施例 3
如图 9所示, 为实施例 3—种四通浮动圆锥旋塞阀结构示意图, 与实施 例 1不同的是阀芯 2设有 2-7、 2-8二条流道, 阀体 1设有等角度的 D、 E、 F、 G四个口, 其余与实施例 1一样, 口 D与口 E与流道 2- 7相通、 口 F与口 G 与流道 2-8相通,当阀芯 2逆时针旋转 90度后,口 D与口 F与流道 2-7相通、 口 E与口 G经流道 2-8相通; 达到流体换向的目的。
实施例 4
如图 10所示, 阀处于开启状态, 阀芯 2上部带有 2个被动磁铁 16, 对 称布置磁极相反, 旋转传动套 34带有 2个主动磁铁 4, 对称布置磁极相反。 被动磁铁 16与主动磁铁 4代替实施例 1所述的扭力限制机构, 主动磁铁 4 装在旋转传动套 34上, 旋转传动套 34与阀杆 7固定为一体, 其余与实施例 1相同。 当阀芯 2与阀腔 31完全脱开时, 主动磁铁 4与被动磁铁 16正好异 极相吸而传递扭力, 使阀芯 2旋转 90度。
实施例 5
如图 11所示,为实施例 5—种浮动圆锥旋塞阀结构示意图,阀处于闭合 状态, 在实施例 4的基础上在锁紧螺母 5上端的阀杆 7上还通过 d轴承 29 装有被动转子 20,在被动转子 20外通过屏蔽套 21设有主动转子 22,在伸缩 外套 13下端和阀芯 3中心之间设有伸缩座 28,在伸缩座 28下面安装弹簧垫 片 8, 所述的伸缩座 28下端设有防转销 28-1销在阀芯 2上设有的防转销孔 2-6, 伸缩外套 13下端设有防转销 13-1销在伸缩座 28上设有的防转销槽 28-1,其目的是防止伸缩座 28与阀芯 2, 伸縮外套 13与伸缩座 28的相互转 动, 如图 12所示。 被动转子 20, 如图 13所示, 由磁条 20— 1和磁条架 20 一 2组成,磁条架 20— 2上设有径向充磁的 4一 12条磁条 20— 1,相邻两条磁 条 20— 1磁性相反, 因此必须为偶数条。所述的主动转子 22, 如图 14所示, 由磁条 22— 1和主动转子密封环 22— 2组成, 主动转子密封环 22— 2设有与 被动转子 20数量相同、 磁性相反的磁条 22— 1。
所述的屏蔽套 21用非导磁的不锈钢、铜、塑料等制作,与阀盖 3通过锁 紧螺母 5固定, 主动转子 22、 被动转子 20和屏蔽套 21同轴安装, 且主动转 子 22的磁条与被动转子 20的磁条长度一致,主动转子 22外设有主动转子套 22-3, 由于异性相吸的原理, 当主动转子 22转动时,带动被动转子 20—起 转动,阀杆 7的动密封变成静密封,若屏蔽套 21与阀盖 3焊接则成无泄漏的 阀门。
被动转子 20还可以由多极磁环制作, 则主动转子 22也相应由多极磁环 制作。

Claims

O 2009/036616 权利要求
1. 一种浮动圆锥旋塞阀, 包括陶体(1), 阀体(1 )两侧设有一个入口 (32) 和一个出口 (33), 入口 (32)和一个出口 (33)之间设有一供介质流过 的贯通的通道(30), 及与所述通道(30)垂直相交的锥形的阀腔(31 ), 可旋转地设于阀腔(31 ) 中的用于在阀的关闭状态下阻断所述通道 (30) 的圆锥形阀芯(2), 该阀还包括一用于转动阀芯(2)的旋转传动套(10) 与阀杆 (7), 旋转传动套(10)套于阀杆 (7)外,阀芯 (2)下部和阀体
( 1 ) 底部之间设有上浮弹簧 (19), 带有限位销 (15) 的阀盖 (3)设于 阀体(1 )上端, 其特征在于, 所述的阀芯(2)为可在阀腔上下移动的浮 动圆锥旋塞阀芯,旋转传动套(10)下端设有至少 1个下端为锥形的扭力 传递销(27), 在阀芯(2)的上端设有与扭力传递销(27)相等数量顶端 为锥形的扭力传递滑块(23), 在阀芯(2)和扭力传递滑块(23)之间设 有滑动弹簧(26),扭力传递滑块(23)下部设有压板(24),通过螺栓(25) 固定在阀芯 (2)上, 在阀盖 (3)上端通过压紧密封环 (6) 设有对阀杆
(7 ) 密封的锁紧螺母 (5), 阀盖 (3) 和旋转传动套 (10) 之间通过 a 轴承(9)设有弹性垫片(8), 在旋转传动套(10)与阀杆(7)之间通过 b轴承 (11 ) 设有可与旋转传动套(10) 与阀杆 (7) 同步转动的并可与 阀杆(7)上下移动的伸缩内套(12), 伸缩内套(12)外设有相互螺纹配 合的伸缩外套 (13)。
2. 根据权利要求 1所述的一种浮动圆锥旋塞阀, 其特征在于, 所述的阀芯
(2)圆锥半夹角为 2— 30度, 阀芯(2)上横向设有流道(2-3), 纵向设 有上下贯穿的平衡孔(2-2), 中心设有定芯孔(2-5),上部设有 2个夹角 大于 90度的限位挡块(2-1 ) ,阀盖(3)下端的限位销(15)在阀芯(2) 的 2个限位挡块(2-1 )之间, 在阀芯 2上设有与防转销 (13_1 )相配合 的防转销孔(2-4)。
3.根据权利要求 1所述的一种浮动圆锥旋塞阀,其特征在于,所述的阀杆(7) 的下部设有定芯销 (7-1 )。
4.根据权利要求 1所述的一种浮动圆锥旋塞阀,其特征在于,所述的伸缩外 套(13) 的下端设有防止伸缩外套(13)与阀芯(2)相互旋转的防转销 ( 13-1 )。
5.根据权利要求 1所述的一种浮动圆锥旋塞阀,其特征在于,所述的伸缩内 套(12)和伸缩外套(13)组成的伸缩机构其相互配合的螺紋为单头或多 头,螺距为 0. 5 腿一 10ram。
6. 根据权利要求 1所述的一种浮动圆锥旋塞阀, 其特征在于, 在阀芯 (2) 底部中心和弹簧(19) 之间通过弹簧压板(17)设有钢球(18)。
7.根据权利要求 1所述的一种浮动圆锥旋塞阀,其特征在于,所述的阀芯(2) 的设有 (2-7)、 (2-8 ) 二条流道, 阀体 (1 ) 设有等角度的 D、 E、 F、 G 四个口,口 D和口 E与流道 (2-7)相通、 口 F和口 G与流道(2-8)相通。
8.根据权利要求 1所述的一种浮动圆锥旋塞阀,其特征在于,所述的阀芯(2) 上部设有 2个对称布置磁极相反的被动磁铁(16),所述的旋转传动套(34) 设有 2个对称布置磁极相反的主动磁铁 (4)。
9.根据权利要求 1所述的一种浮动圆锥旋塞阀,其特征在于,在锁紧螺母(5) 上端的阀杆(7)上设有被动转子(20),被动转子(20)外通过屏蔽套(21 ) 设有主动转子(22), 在伸缩外套(13)下端和阀芯(2)中心之间设有伸 缩座(28), 在伸缩座(28)下面设有弹簧垫片(8), 所述的伸缩座(28) 下端设有防转销 (28-1 )销, 在阀芯 (2)上设有的防转销孔(2-6), 伸 缩外套 (13)下端设有防转销 (13-1 ), 在伸缩座 (28)上设有的防转销 槽 (28-1 )。
10. 根据权利要求 9所述的一种浮动圆锥旋塞阀, 其特征在于, 所述的被动 转子 (20) 由磁条(20—1 )和磁条架 (20—2) 组成, 磁条架 (20— 2) 上设有径向充磁的 4一 12条磁条(20— 1 ), 相邻两条磁条(20— 1 )磁性 相反。
11. 根据权利要求 9所述的一种浮动圆锥旋塞阀, 其特征在于, 所述的主动 转子 (22) 由磁条 (22- 1 )和主动转子密封环 (22-2) 组成, 主动转 子密封环(22— 2)设有与被动转子(20)数量相同、磁性相反的磁条(22 一 1 )。
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JP5242689B2 (ja) 2013-07-24

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