WO2019047916A1 - 密封性优越式手动高温高压疏水球阀 - Google Patents

密封性优越式手动高温高压疏水球阀 Download PDF

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Publication number
WO2019047916A1
WO2019047916A1 PCT/CN2018/104576 CN2018104576W WO2019047916A1 WO 2019047916 A1 WO2019047916 A1 WO 2019047916A1 CN 2018104576 W CN2018104576 W CN 2018104576W WO 2019047916 A1 WO2019047916 A1 WO 2019047916A1
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WIPO (PCT)
Prior art keywords
valve
valve body
valve seat
packing
outlet
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PCT/CN2018/104576
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English (en)
French (fr)
Inventor
胡勇
朱结成
杨胜
丁焕铸
卞明
Original Assignee
江苏科维仪表控制工程有限公司
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Priority claimed from CN201721145357.4U external-priority patent/CN207213622U/zh
Priority claimed from CN201710803146.3A external-priority patent/CN107448769A/zh
Application filed by 江苏科维仪表控制工程有限公司 filed Critical 江苏科维仪表控制工程有限公司
Publication of WO2019047916A1 publication Critical patent/WO2019047916A1/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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
    • 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
    • F16K41/00—Spindle sealings
    • F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
    • 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
    • F16K5/00—Plug 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
    • F16K5/06—Plug 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 spherical surfaces; Packings therefor
    • 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
    • F16K5/00—Plug 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
    • F16K5/08—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
    • F16K5/00—Plug 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
    • F16K5/08—Details
    • F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
    • F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
    • 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
    • F16T—STEAM TRAPS OR LIKE APPARATUS FOR DRAINING-OFF LIQUIDS FROM ENCLOSURES PREDOMINANTLY CONTAINING GASES OR VAPOURS
    • F16T1/00—Steam traps or like apparatus for draining-off liquids from enclosures predominantly containing gases or vapours, e.g. gas lines, steam lines, containers
    • F16T1/38—Component parts; Accessories

Definitions

  • the invention relates to the field of valves, in particular to a manual high temperature and high pressure hydrophobic ball valve with superior sealing performance.
  • the valve is required to have high wear resistance, anti-leakage, fireproof performance, and the existing high-temperature steam special ball valves are fixed two pieces. Most of the three pieces, the bonnet and the middle of the valve body connection, the connection between the filler culvert and the valve body, the connection between the fixed shaft and the valve body are more likely to cause serious external leakage, and the safety of use is not guaranteed.
  • the sealing components used (such as post-valve graphite, medium-pass metal gaskets, etc.) are easy to seal failure under high temperature and high pressure, and it is easy to cause serious leakage of the valve, resulting in a safety accident.
  • the application number is 2014105009322
  • the patent name is: a invention patent of a high temperature steam ball valve and an assembly method thereof
  • the above problem has been solved, but the following problems still exist.
  • the sealing surface between the cylindrical surface on the step of the outlet valve seat and the stepped hole of the valve body is not considered.
  • the clearance fit is used for positioning.
  • the graphite rope is added here, but the scouring and cavitation of the medium under high temperature and high pressure Great damage to the graphite rope; 2.
  • the end face on the step of the outlet valve seat and the end face of the valve body are used for spraying and spray welding, and the grinding is performed, but the spray welding will increase the cost.
  • the object of the present invention is to overcome the above problems and to provide a manually sealed high temperature and high pressure hydrophobic ball valve.
  • the method adopted by the present invention is: a sealed superior manual high temperature and high pressure hydrophobic ball valve, comprising a valve body, a ball body and a valve stem, the bottom of the valve stem is connected with the ball body, and both sides of the valve body
  • the medium inlet and the medium outlet are respectively provided, and an inlet valve seat is arranged in the valve body on the medium inlet side, and an outlet valve seat is arranged in the valve body on the medium outlet side, and the inlet valve seat and the outlet valve seat respectively are respectively connected with the spherical body
  • the end face is fitted to form a metal sealing pair, and the outlet valve seat is provided with a step having a smaller diameter near the end of the medium outlet, and the valve body is provided with a stepped hole matching the step of the outlet valve seat,
  • the end face b on the step of the outlet valve seat is matched with the stepped hole of the valve body, and the precision of the NC machining of the inclined rail is 1.6 ⁇ m, and then the polishing degree of the brush
  • an elastic member, an adjusting sleeve and a retaining ring are further disposed on the medium inlet side of the valve body, and the adjusting sleeve is disposed between the elastic member and the retaining ring.
  • One end of the elastic member is pressed against the inlet valve seat, and the other end is pressed against the adjusting sleeve.
  • One end of the adjusting sleeve is pressed against the elastic member, and the other end is pressed against the retaining ring, and the retaining ring is a winding retaining ring.
  • the winding retaining ring is disposed in the retaining ring mounting groove and automatically compensates for the radial gap.
  • a filler box is further disposed on the valve stem, and the stuffing box is sleeved outside the valve stem and fixedly mounted with the valve body, and the stuffing box includes a packing pad, upper and lower packing,
  • the packing gland and the seasoning plate are arranged between the valve stem and the valve body, the packing gland is sleeved on the valve stem and the packing pad and the upper and lower packing are pressed, and the upper end of the packing gland is passed through the packing plate
  • the bolt and nut are fixed, and a disc spring is arranged between the packing gland and the packing platen.
  • a groove is provided on the packing platen, and the disc spring is disposed in the groove, and the convex surface of the disc spring is in contact with the upper end surface of the groove, and the disc spring is The inner concave surface is in contact with the connecting flange on the packing gland.
  • the disc spring is provided with two pieces, and the two disc springs are connected in parallel.
  • the invention provides a sealing high-precision manual high-temperature and high-pressure water-repellent ball valve, wherein the end surface b on the step of the outlet valve seat and the end surface of the valve body step hole are matched, and the precision of the inclined rail numerical control processing reaches 1.6 ⁇ m, and then the wool is used.
  • the polishing finish of the brush reaches 0.2 ⁇ m, and the end faces of the valve body step and the stepped hole of the valve seat are slightly matched to each other to achieve a full plane to achieve sealing; the cylindrical surface a on the step of the outlet valve seat and the stepped hole of the valve body An interference fit is used, and the interference is greater than the pressure test pressure of the valve, so that the sealing between the outlet valve seat and the valve body is stronger, and the seal is more secure and less likely to leak; by winding at the inlet end of the medium
  • the retaining ring replaces the original double-open or four-opening ring.
  • the 360-degree support surface does not cause lug interference in the device.
  • Figure 1 is a schematic view of the structure of the present invention
  • Figure 2 is an enlarged view of a portion A of the present invention
  • Figure 3 is an enlarged view of a portion B of the present invention.
  • Figure 4 is a schematic view showing the installation structure of the retaining ring of the present invention.
  • Figure 5 is a schematic view showing the structure of the retaining ring of the present invention installed in the mounting groove
  • Figure 6 is a perspective view of the retaining ring of the present invention.
  • a hand-operated manual ball valve as shown in FIGS. 1 to 5 includes a bracket 21 and a valve body 7, on which a shaft hole 19 is provided, and the valve stem 15 passes through the shaft hole. 19, and connected to the positioning block 22 by screws 13.
  • the positioning block 22 is used to connect the handle for operation.
  • the bottom of the valve rod 15 is connected to the ball body 5, and the inner side of the valve body 7 is respectively provided with a medium inlet and a medium outlet, and an inlet valve seat 4 is arranged in the valve body on the medium inlet side, on the medium outlet side.
  • An outlet valve seat 6 is disposed in the valve body, and the inlet valve seat 4 and the outlet valve seat 6 are respectively engaged with the two end faces of the ball body 5 to form a metal seal pair.
  • the bracket 21 and the valve body 7 are integrally cast, and the bracket 21 and the valve body 7 are integrally swaged, and the strength is sufficient to withstand any internal and external load forces, and the service life can be consistent with the body.
  • An outer surface of the valve body 7 at a position connected to the bracket 21 is provided with a groove body, and the groove body is an arc-shaped groove 17 at a position on the valve body connected to the bracket.
  • the surface of the beveled groove has an external shape, which can effectively reduce the welding deformation during welding, especially when the post-weld heat treatment.
  • the outlet valve seat 6 is provided with a step having a smaller diameter near the end of the medium outlet, and the valve body 7 is provided with a stepped hole matching the step of the outlet valve seat 6, on the step of the outlet valve seat.
  • the end face b of the end face b is matched with the stepped hole of the valve body, and the precision of the NC machining of the inclined rail reaches 1.6 ⁇ m, and then the polishing degree of the brush is 0.2 ⁇ m, and the end surface of the valve body step is matched with the stepped hole of the valve seat.
  • the end faces are slightly matched to each other to achieve a full plane to achieve sealing; an interference fit is used between the cylindrical surface a on the step of the outlet valve seat and the stepped hole of the valve body, and the interference is greater than the pressure test pressure of the valve.
  • An elastic member 3, an adjusting sleeve 2 and a retaining ring 1 are further disposed on the medium inlet side of the valve body 7, and the elastic member 3 is preferably a disc spring, and the adjusting sleeve 2 is disposed on the elastic member 3 and Between the retaining rings 1, one end of the elastic member 3 is pressed against the inlet valve seat 4, and the other end is pressed against the adjusting sleeve 2. One end of the adjusting sleeve 2 is pressed against the elastic member 3, and the other end is opposite to the retaining ring 1. Pressing, the retaining ring 1 is a wound retaining ring, and the winding retaining ring is disposed in the retaining ring mounting groove and automatically compensates for the radial gap.
  • the 360-degree support surface does not cause lug interference in the device, no burrs, and the spiral-wound multi-turn winding has high strength.
  • Load capacity automatically compensates for radial clearance after screwing into the workpiece
  • An anti-flying ring 12 is disposed on the valve stem 15 , and the anti-flying ring 12 is disposed between the boss 20 and the bracket 21 .
  • the anti-flying ring 12 and the bracket 21 are fixed by a pin, and the pin is a rolled heavy elastic cylindrical pin 14.
  • the heavy-duty elastic cylindrical pin 14 automatically expands when loaded, without any gap, so that the fly-proof ring 12 and the bracket 21 are fixed firmly.
  • the anti-flying ring 12 is an integral structure, and the whole flip-chip anti-flying ring 12 is effectively embedded in the integral bracket, has a high-strength anti-flying function, and can also prevent the valve stem from being displaced.
  • the spraying process is performed at the place where the valve stem 15 and the anti-flying ring 12 and the anti-flying ring 12 are in contact with the bracket 21.
  • the friction coefficient of the valve stem and the overall inverted anti-flying ring, the overall inverted anti-flying ring and the bracket are reduced, so that the valve torque is reduced.
  • a filler box is further disposed on the valve rod 15, and the stuffing box is sleeved outside the valve rod 15 and fixedly mounted with the valve body 7.
  • the stuffing box includes a packing pad 8, a packing 16, and a packing gland 9 And the adjusting platen 10, the packing pad 8 and the packing 16 are disposed between the valve stem 15 and the valve body 7, the packing gland 9 is sleeved on the valve stem 15 and the packing pad 8 and the packing 16 are pressed, and the packing gland is pressed The upper end of the 9 is fixed by the packing platen 10 and the bolt nut 11, and a disc spring 18 is further disposed between the packing gland 9 and the packing platen 10.
  • a groove is disposed on the packing platen 10, and the disc spring 18 is disposed in the groove, and the convex surface of the disc spring 18 is in contact with the upper end surface of the groove, and the concave surface of the disc spring 18 and the filler
  • the connecting flanges on the gland 9 are in contact.
  • two disc springs 18 can be used in parallel to contact the concave surfaces of the two disc springs 18, and the two outer convex surfaces are respectively connected to the upper end surface of the recess and the packing gland 9.
  • the blue phase is in contact.
  • the filler 16 anti-extrusion graphite is prepared by adding the Inconel nickel alloy wire packing ring, which can meet the requirements of API 622 micro-leakage, anti-wear, and can withstand temperature and high temperature up to 650 degrees.
  • the technical means disclosed in the solution of the present invention is not limited to the technical means disclosed in the above embodiments, and includes a technical solution composed of any combination of the above technical features.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Taps Or Cocks (AREA)

Abstract

一种手动高温高压疏水球阀，包括阀体（7）、球体（5）和阀杆（15），阀杆（15）底部与球体（5）连接，阀体（7）内两侧分别设介质进口和介质出口，介质进口一侧的阀体（7）内设有进口阀座（4），介质出口一侧的阀体（7）内设有出口阀座（6），出口阀座（6）靠近介质出口一端设有一直径变小的台阶，阀体（7）上设有与出口阀座（6）的台阶相配合的台阶孔，出口阀座（6）台阶上的端面b与阀体（7）台阶孔相贴合的端面相互轻微配磨达到全平面，实现密封；出口阀座（6）台阶上的圆柱面a与阀体（7）台阶孔之间采用过盈配合。

Description

密封性优越式手动高温高压疏水球阀 技术领域
本发明涉及阀门领域，特别涉及一种密封性优越式手动高温高压疏水球阀。
背景技术
由于高温的水蒸汽容易产生氢气与厂房里的氧气混合引起爆炸，因此要求阀门具有较高耐磨损、防外泄漏、防火等性能，而现有的高温蒸汽专用球阀，均为固定式二片和三片居多，阀盖与阀体中部连接、填料涵与阀体连接、固定轴与阀体连接处，比较容易产生严重的外泄漏，使用安全性得不到保障。使用的密封元件(如阀后石墨，中道金属垫片等)在高温高压下容易密封失效，容易使阀门产生严重泄漏，从而造成安全事故。现有技术中已有解决上述问题的技术方案，如申请号为：2014105009322，专利名称为：一种高温蒸汽球阀及其装配方法的发明专利，已解决了上述问题，但是仍然存着以下的问题：1、出口阀座台阶上的圆柱面与阀体台阶孔之间不考虑密封性能，采用间隙配合，只是做定位用，在此处增设石墨绳，但是高温高压下，介质的冲刷和气蚀问题会对石墨绳极大的损坏；2、出口阀座台阶上的端面与阀体台阶孔相贴合的端面采用做喷涂和喷焊后加工，在配磨，但喷涂喷焊会增加成本，喷涂喷焊后加工难度大，工件变形无法控制，并且才用活塞截面积原理保证密封，但是控制截面积尺寸的同时，需要在部分截面积位置做喷涂喷焊处理，同样，喷涂喷焊会增加成本，喷涂喷焊后加工难度大，工件变形无法控制。
发明内容
本发明的目的是为了克服上述问题，提供一种密封性优越式手动高温高压疏水球阀。
为达到上述目的，本发明采用的方法是：一种密封性优越式手动高温高压疏水球阀，包括阀体、球体和阀杆，所述阀杆底部与所述球体连接，所述阀体内两侧分别设有介质进口和介质出口，在介质入口一侧的阀体内设置有进口阀座在介质出口一侧的阀体内设置有出口阀座，所述进口阀座以及出口阀座分别与球体的两个端面贴合形成金属密封副，所述的出口阀座靠近介质出口一端设置有一直径变小的台阶，在所述的阀体上设置有与该出口阀座的台阶相配合的台阶孔，在出口阀座台阶上的端面b与阀体台阶孔相贴合的端面，采用斜轨数控加工精度达到1.6μm后，再采用羊毛刷进行抛光光洁度达到0.2μm，阀体台阶上的端面与阀座台阶孔相贴合的端面在相互轻微配磨达到全平面，实现密封；出口阀座台阶上的圆柱面a与阀体台阶孔之间采用过盈配合,其过盈量大于阀门的试压压力。
作为本发明的一种改进，在所述的阀体的介质进口侧还设置还设置有弹性件、调整套以及挡圈，所述的调整套设置在弹性件以及挡圈之间，所述的弹性件一端与进口阀座抵压，另一端与调整套抵压，所述的调整套一端与弹性件抵压，另一端与挡圈抵压，所述的挡圈为一个卷绕式挡圈，所述的卷绕式挡圈设置在挡圈安装槽内，并自动补偿径向间隙。
作为本发明的一种改进，在所述的阀杆上还设置有填料箱，所述 填料箱套设于阀杆外侧且与阀体固定安装，所述的填料箱包括填料垫、上下填料、填料压盖以及调料压板，所述的填料垫、上下填料设置在阀杆与阀体之间，填料压盖套设于阀杆并将填料垫及上下填料压住，填料压盖上端通过填料压板及螺栓螺母固定，在填料压盖与填料压板之间还设置有碟簧。
作为本发明的一种改进，在所述的填料压板上设置有凹槽，所述的碟簧设置在所述的凹槽内，碟簧的外凸面与凹槽的上端面接触，碟簧的内凹面与填料压盖上的连接法兰相接触。
作为本发明的一种改进，所述的碟簧设置有两片，两片碟簧之间并联连接。
有益效果：
本发明提供的一种密封性优越式手动高温高压疏水球阀，在出口阀座台阶上的端面b与阀体台阶孔相贴合的端面，采用斜轨数控加工精度达到1.6μm后，再采用羊毛刷进行抛光光洁度达到0.2μm，阀体台阶上的端面与阀座台阶孔相贴合的端面在相互轻微配磨达到全平面，实现密封；出口阀座台阶上的圆柱面a与阀体台阶孔之间采用过盈配合,其过盈量大于阀门的试压压力，使出口阀座与阀体之间的密封性更强，且密封更牢靠，不易泄露；通过在介质进口端设置卷绕式挡圈代替原有的双开或者四开环，360度的支撑面不会在装置内产生凸耳干扰，没有毛边，螺旋卷绕式多圈卷绕具有高强度的负载能力，旋入工件后，自动补偿径向间隙；在填料处加装碟簧增加了整个紧固系统的柔度，减小了因填料蠕变或不同热膨胀等引起螺栓预紧载荷松 弛的影响，提高了填料压盖处的密封性能，延长了其使用寿命。
附图说明
图1为本发明的结构示意图；
图2为本发明的A部放大图；
图3为本发明的B部放大图；
图4为本发明的挡圈的安装结构示意图；
图5为本发明的挡圈安装到安装槽内的结构示意图；
图6为本发明的挡圈的立体图。
具体实施方式
下面结合附图和具体实施例，进一步阐明本发明，本实施例在以本发明技术方案为前提下进行实施，应理解这些实施例仅用于说明本发明而不用于限制本发明的范围。
如图1到5所示的一种便于装配的手动球阀，包括支架21、阀体7，在所述的支架21上设置有轴孔19，所述的阀杆15穿过所述的轴孔19，并通过螺钉13与定位块22相连接。定位块22用于连接手柄进行操作。
所述阀杆15底部与所述球体5连接，所述阀体7内两侧分别设有介质进口和介质出口，在介质入口一侧的阀体内设置有进口阀座4，在介质出口一侧的阀体内设置有出口阀座6，所述进口阀座4以及出口阀座6分别与球体5的两个端面贴合形成金属密封副。所述的支架21与阀体7之间为一体铸造，将支架21与阀体7整体模锻而成，强度足够承受内部及外部任何载荷力,使用寿命可以与本体保持一致。
在所述的阀体7上与支架21相连接的位置处的外表面设置有一个槽体，所述的槽体为一个弧形槽17，在阀体上与支架相连接的位置处的外表面斜面式凹槽外型,焊接的时候能有效的降低焊接变形，特别是焊后热处理时得以保护阀门。
所述的出口阀座6靠近介质出口一端设置有一直径变小的台阶，在所述的阀体7上设置有与该出口阀座6的台阶相配合的台阶孔，在出口阀座台阶上的端面b与阀体台阶孔相贴合的端面，采用斜轨数控加工精度达到1.6μm后，再采用羊毛刷进行抛光光洁度达到0.2μm，阀体台阶上的端面与阀座台阶孔相贴合的端面在相互轻微配磨达到全平面，实现密封；出口阀座台阶上的圆柱面a与阀体台阶孔之间采用过盈配合,其过盈量大于阀门的试压压力。
在所述的阀体7的介质进口侧还设置还设置有弹性件3、调整套2以及挡圈1，该弹性件3最好选择碟簧，所述的调整套2设置在弹性件3以及挡圈1之间，所述的弹性件3一端与进口阀座4抵压，另一端与调整套2抵压，所述的调整套2一端与弹性件3抵压，另一端与挡圈1抵压，所述的挡圈1为一个卷绕式挡圈，所述的卷绕式挡圈设置在挡圈安装槽内，并自动补偿径向间隙。通过在介质进口端设置卷绕式挡圈代替原有的双开或者四开环，360度的支撑面不会在装置内产生凸耳干扰，没有毛边，螺旋卷绕式多圈卷绕具有高强度的负载能力，旋入工件后，自动补偿径向间隙
在所述的阀杆15上套设有防飞环12，所述的防飞环12设置在凸台20与支架21之间。所述的防飞环12与所述的支架21之间通过 销固定，所述的销为卷制重型弹性圆柱销14。重型弹性圆柱销14在装入的时候，会自动膨胀，没有任何间隙，使得防飞环12与支架21固定牢靠。所述的防飞环12为一个整体结构，整体倒装式防飞环12有效的嵌入整体支架，具有高强度的防飞功能,还可以起到防止阀杆对偏位移。
在所述的阀杆15与防飞环12、防飞环12与支架21接触的地方均进行喷涂处理。在对该工件进行特殊的喷涂处理，阀杆与整体倒装式防飞环、整体倒装式防飞环与支架摩擦系数降低，从而阀门扭矩降低。
在所述的阀杆15上还设置有填料箱，所述填料箱套设于阀杆15外侧且与阀体7固定安装，所述的填料箱包括填料垫8、填料16、填料压盖9以及调料压板10，所述的填料垫8、填料16设置在阀杆15与阀体7之间，填料压盖9套设于阀杆15并将填料垫8及填料16压住，填料压盖9上端通过填料压板10及螺栓螺母11固定，在填料压盖9与填料压板10之间还设置有碟簧18。
在所述的填料压板10上设置有凹槽，所述的碟簧18设置在所述的凹槽内，碟簧18的外凸面与凹槽的上端面接触，碟簧18的内凹面与填料压盖9上的连接法兰相接触。为了增加碟簧18的弹性，可以将两个碟簧18并联使用，将两个碟簧18的内凹面相接触，两个外凸面分别与凹槽的上端面以及填料压盖9上的连接法兰相接触。
本实施例中的填料16防挤压石墨编制加因科镍合金丝填料环，可以符合API 622微泄露要求，抗磨损，耐温高温可以达到650度。
本发明方案所公开的技术手段不仅限于上述实施方式所公开的技术手段，还包括由以上技术特征任意组合所组成的技术方案。

Claims (5)

  1. 一种密封性优越式手动高温高压疏水球阀，包括阀体(7)、球体(5)和阀杆(15)，所述阀杆(15)底部与所述球体(5)连接，所述阀体(7)内两侧分别设有介质进口和介质出口，在介质入口一侧的阀体内设置有进口阀座(4)在介质出口一侧的阀体内设置有出口阀座(6)，所述进口阀座(4)以及出口阀座(6)分别与球体(5)的两个端面贴合形成金属密封副，其特征在于：所述的出口阀座(6)靠近介质出口一端设置有一直径变小的台阶，在所述的阀体(7)上设置有与该出口阀座(6)的台阶相配合的台阶孔，在出口阀座台阶上的端面b与阀体台阶孔相贴合的端面，采用斜轨数控加工精度达到1.6μm后，再采用羊毛刷进行抛光光洁度达到0.2μm，阀体台阶上的端面与阀座台阶孔相贴合的端面在相互轻微配磨达到全平面，实现密封；出口阀座台阶上的圆柱面a与阀体台阶孔之间采用过盈配合,其过盈量大于阀门的试压压力。
  2. 根据权利要求1所述的一种密封性优越式手动高温高压疏水球阀，其特征在于：在所述的阀体(7)的介质进口侧还设置还设置有弹性件(3)、调整套(2)以及挡圈(1)，所述的调整套(2)设置在弹性件(3)以及挡圈(1)之间，所述的弹性件(3)一端与进口阀座(4)抵压，另一端与调整套(2)抵压，所述的调整套(2)一端与弹性件(3)抵压，另一端与挡圈(1)抵压，所述的挡圈(1)为一个卷绕式挡圈，所述的卷绕式挡圈设置在挡圈安装槽内，并自动补偿径向间隙。
  3. 根据权利要求1所述的一种密封性优越式手动高温高压疏水球阀，其特征在于：在所述的阀杆(15)上还设置有填料箱，所述填料箱套设于阀杆(15)外侧且与阀体(7)固定安装，所述的填料箱包括填料垫(8)、上下填料(16)、填料压盖(9)以及调料压板(10)，所述的填料垫(8)、上下填料(16)设置在阀杆(15)与阀体(7)之间，填料压盖(9)套设于阀杆(15)并将填料垫(8)及上下填料(16)压住，填料压盖(9)上端通过填料压板(10)及螺栓螺母(11)固定，在填料压盖(9)与填料压板(10)之间还设置有碟簧(18)。
  4. 根据权利要求3所述的一种密封性优越式手动高温高压疏水球阀，其特征在于：在所述的填料压板(10)上设置有凹槽，所述的碟簧(18)设置在所述的凹槽内，碟簧(18)的外凸面与凹槽的上端面接触，碟簧(18)的内凹面与填料压盖(9)上的连接法兰相接触。
  5. 根据权利要求4所述的一种密封性优越式手动高温高压疏水球阀，其特征在于：所述的碟簧(18)设置有两片，两片碟簧(18)之间并联连接。
PCT/CN2018/104576 2017-09-08 2018-09-07 密封性优越式手动高温高压疏水球阀 WO2019047916A1 (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11796077B2 (en) 2020-11-06 2023-10-24 Swagelok Company Valve cavity cap arrangements
US11808381B2 (en) 2020-11-04 2023-11-07 Swagelok Company Valves with integrated orifice restrictions

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005172090A (ja) * 2003-12-10 2005-06-30 Seiichi Tan 滅菌スチームトラップ装置
CN202118294U (zh) * 2011-06-21 2012-01-18 温州市中力阀门有限公司 高压硬密封球阀
CN202118295U (zh) * 2011-06-21 2012-01-18 温州市中力阀门有限公司 一体式高压硬密封球阀
CN202118293U (zh) * 2011-06-21 2012-01-18 温州市中力阀门有限公司 一体式高压球阀
CN107388017A (zh) * 2017-09-08 2017-11-24 江苏科维仪表控制工程有限公司 便于装配的高温高压疏水球阀
CN107388018A (zh) * 2017-09-08 2017-11-24 江苏科维仪表控制工程有限公司 气动高温高压疏水球阀
CN107387803A (zh) * 2017-09-08 2017-11-24 江苏科维仪表控制工程有限公司 耐磨损手动高温高压疏水球阀
CN107448769A (zh) * 2017-09-08 2017-12-08 江苏科维仪表控制工程有限公司 密封性优越式手动高温高压疏水球阀
CN107781631A (zh) * 2017-09-08 2018-03-09 江苏科维仪表控制工程有限公司 带限位装置气动高温高压疏水球阀
CN207213622U (zh) * 2017-09-08 2018-04-10 江苏科维仪表控制工程有限公司 密封性优越式手动高温高压疏水球阀
CN207213623U (zh) * 2017-09-08 2018-04-10 江苏科维仪表控制工程有限公司 便于装配的高温高压疏水球阀
CN207421377U (zh) * 2017-09-08 2018-05-29 江苏科维仪表控制工程有限公司 耐磨损手动高温高压疏水球阀
CN207421767U (zh) * 2017-09-08 2018-05-29 江苏科维仪表控制工程有限公司 气动高温高压疏水球阀
CN207421764U (zh) * 2017-09-08 2018-05-29 江苏科维仪表控制工程有限公司 带限位装置气动高温高压疏水球阀

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005172090A (ja) * 2003-12-10 2005-06-30 Seiichi Tan 滅菌スチームトラップ装置
CN202118294U (zh) * 2011-06-21 2012-01-18 温州市中力阀门有限公司 高压硬密封球阀
CN202118295U (zh) * 2011-06-21 2012-01-18 温州市中力阀门有限公司 一体式高压硬密封球阀
CN202118293U (zh) * 2011-06-21 2012-01-18 温州市中力阀门有限公司 一体式高压球阀
CN107388017A (zh) * 2017-09-08 2017-11-24 江苏科维仪表控制工程有限公司 便于装配的高温高压疏水球阀
CN107388018A (zh) * 2017-09-08 2017-11-24 江苏科维仪表控制工程有限公司 气动高温高压疏水球阀
CN107387803A (zh) * 2017-09-08 2017-11-24 江苏科维仪表控制工程有限公司 耐磨损手动高温高压疏水球阀
CN107448769A (zh) * 2017-09-08 2017-12-08 江苏科维仪表控制工程有限公司 密封性优越式手动高温高压疏水球阀
CN107781631A (zh) * 2017-09-08 2018-03-09 江苏科维仪表控制工程有限公司 带限位装置气动高温高压疏水球阀
CN207213622U (zh) * 2017-09-08 2018-04-10 江苏科维仪表控制工程有限公司 密封性优越式手动高温高压疏水球阀
CN207213623U (zh) * 2017-09-08 2018-04-10 江苏科维仪表控制工程有限公司 便于装配的高温高压疏水球阀
CN207421377U (zh) * 2017-09-08 2018-05-29 江苏科维仪表控制工程有限公司 耐磨损手动高温高压疏水球阀
CN207421767U (zh) * 2017-09-08 2018-05-29 江苏科维仪表控制工程有限公司 气动高温高压疏水球阀
CN207421764U (zh) * 2017-09-08 2018-05-29 江苏科维仪表控制工程有限公司 带限位装置气动高温高压疏水球阀

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11808381B2 (en) 2020-11-04 2023-11-07 Swagelok Company Valves with integrated orifice restrictions
US11796077B2 (en) 2020-11-06 2023-10-24 Swagelok Company Valve cavity cap arrangements

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