WO2012051763A1 - 一种带导流孔的圆盘阀 - Google Patents

一种带导流孔的圆盘阀 Download PDF

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Publication number
WO2012051763A1
WO2012051763A1 PCT/CN2010/078311 CN2010078311W WO2012051763A1 WO 2012051763 A1 WO2012051763 A1 WO 2012051763A1 CN 2010078311 W CN2010078311 W CN 2010078311W WO 2012051763 A1 WO2012051763 A1 WO 2012051763A1
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WO
WIPO (PCT)
Prior art keywords
valve
hole
disc
plate
passage
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Application number
PCT/CN2010/078311
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English (en)
French (fr)
Inventor
韩静波
丁英仁
Original Assignee
北京航天动力研究所
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Application filed by 北京航天动力研究所 filed Critical 北京航天动力研究所
Priority to US13/513,660 priority Critical patent/US8613424B2/en
Publication of WO2012051763A1 publication Critical patent/WO2012051763A1/zh

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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
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • F16K3/04—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members
    • F16K3/06—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages
    • F16K3/08—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages with circular plates rotatable around their centres
    • F16K3/085—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages with circular plates rotatable around their centres the axis of supply passage and the axis of discharge passage being coaxial and parallel to the axis of rotation of the plates
    • 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
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • F16K3/04—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members
    • F16K3/10—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members with special arrangements for separating the sealing faces or for pressing them together
    • 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
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30—Details
    • F16K3/32—Means for additional adjustment of the rate of flow

Definitions

  • the present invention is directed to a disc valve, and more particularly to a disc valve with a diversion orifice adapted to be a solid particle.
  • the disc valve is a valve in which the opening and closing member is a disc, and the disc is rotated by the valve stem as an axis and rotates along the sealing surface of the valve seat.
  • the actuator drives the valve stem to drive the valve disc.
  • the sealing surface of the entire valve disc is pressed against the sealing seat under the action of the spring to prevent particulate matter from entering the sealing surface.
  • the conventionally known disc valve includes a ring-shaped middle valve body 150 and a left valve body 101 and a right valve body 102 on both sides of the middle valve body 150.
  • the valve stem 118 is located in the valve chamber and passes through The connecting rod 40 and the spring chamber 52 drive the valve disc 140 to rotate.
  • the disc valve has the following disadvantages and defects:
  • valve cavity is easy to accumulate. As shown in Fig. 2, the left and right direction is the valve passage. The diameter of the valve body in the disc valve is much larger than that of the pipeline. The medium can not be completely discharged during the switching process, so that the valve cavity accumulates, causing the valve switch to be out of position and even stuck.
  • the outer seal is affected under high temperature conditions. In high temperature conditions, the valve cavity part is in direct contact with the medium, the temperature is high, and the performance of the gasket is very high. At this time, the sealing is not easy to realize, and the life of the gasket is limited, and the whole valve needs to be disassembled when replacing.
  • a disc valve with a diversion hole comprising a valve body with a valve passage, the valve body is provided with a valve chamber communicating with the valve passage, and the valve body is provided with a valve stem
  • the valve stem in the valve stem assembly is connected to a connecting rod disposed in the valve chamber, and the connecting rod is provided with a valve disc for closing the valve passage, and the connecting rod is further provided with a guiding passage opened by the valve passage hole.
  • a disc valve with a guide hole as described above wherein: the connecting rod is an eyeglass plate, the lens plate is provided with a valve stem connecting hole, a guiding hole and a valve disc hole, and the optical lens plate passes through the valve stem
  • the connecting hole is connected with the valve rod
  • the spring chamber is arranged in the valve disc hole
  • the valve disc hole is connected with the spring chamber through the baffle plate
  • the valve disc is disposed in the valve disc hole at the end of the spring chamber
  • the spring provided in the spring chamber acts on the spring On the valve disc.
  • a disc valve with a guide hole as described above wherein: a distance between the shaft center of the valve stem and the center of the valve passage, a distance between a center of the flow guide hole and a center of the valve rod connecting hole, and the valve disc hole The distance between the center and the center of the stem connection hole is equal.
  • the spectacle plate has a fan shape, a semicircular shape or a T shape, and the spectacle plate is a unitary structure or a group raft structure.
  • valve disc hole and the spring chamber are the same
  • the two valve discs are respectively disposed in the valve disc holes at the two ends of the spring cavity of the through hole structure; or the valve disc hole and the spring chamber are the blind hole structure, and the single valve disc is disposed at the end of the spring cavity of the blind hole structure Inside the valve disc hole.
  • a disc valve with a diversion hole as described above wherein: the height of the disc hole is the same as the height of the diversion hole, and the diameter of the inner wall of the diversion hole is the same as the diameter of the valve passage.
  • a disc valve with a diversion hole as described above wherein: a communication between the valve passage and the valve chamber is provided with a left valve seat and a right valve seat, and the inner wall of the diversion hole and the inner wall of the valve disc hole are the smallest The distance is less than the width of the left and right seat sealing faces.
  • a disc valve with a guide hole as described above wherein: the group of the cymbal plate of the cymbal structure is formed by a spring chamber, a connecting plate, a side plate, a valve disc sleeve and a draft tube;
  • the connecting plate is an integral plate with three openings, one is a valve rod connecting hole fixedly connected with the valve stem, one is concentrically connected with the guiding tube, one is with the spring cavity and the valve disk casing Concentrically connected;
  • the side panel is an integral flat plate, which is provided with two openings, one is connected with the guiding tube concentrically, and one is concentrically connected with the valve disc sleeve.
  • the invention designs a diversion hole structure connecting the valve passages on the connecting rod, so that the medium passes through the diversion hole without entering the valve cavity during operation, thereby eliminating the accumulation phenomenon of the disc valve.
  • the valve cavity structure of the existing disc valve is avoided, so that the medium can easily accumulate in the valve cavity when passing through the flow passage, and finally the valve does not move smoothly, and even the switch cannot be in place and fails.
  • the present invention is not limited in its installation position since the valve cavity accumulation phenomenon is eliminated.
  • the invention adopts the structure that the diameter of the inner wall of the diversion hole is the same as the diameter of the valve passage, and the diameter of the outer wall of the diversion hole is larger than the diameter of the valve passage.
  • the diameter of the diversion hole and the valve passage are the same, so that the medium passes through the valve. It is equivalent to a straight-through pipeline, and does not cause eddy currents due to spatial changes.
  • the pressure difference loss is small at the full open position, and pressure loss is avoided.
  • the guide hole will block the sealing surface of the valve seat to avoid it being washed.
  • the sealing surface of the valve seat is protected, reducing the actual temperature at the sealing gasket and improving its service life.
  • the sealing surface of the valve seat is completely exposed, and in the environment of being washed by the medium (such as solid particles), the surface quality of the sealing surface is degraded, which affects the sealing effect.
  • the connecting rod adopts a spectacle plate structure, and the striation plate connecting hole, the guiding hole and the valve disc hole are opened on the spectacle plate.
  • the spring chamber that drives the movement of the valve disc in the existing disc valve needs to be connected with the connecting rod to form a component connected to the valve stem, so that the joint strength at the joint is required to be high.
  • it is synthesized into a component, that is, an eyeglass plate, and a through hole is formed around the spring cavity, which improves the strength of the valve stem assembly and increases the reliability during operation.
  • the eyeglass plate structure proposed by the present invention the distance between the axial center of the valve stem and the center of the valve passage, the distance between the center of the flow guide hole and the center of the valve stem connecting hole, and the distance between the center of the valve disc hole and the center of the valve stem connecting hole Equal, considering the operating range of the glasses plate in the case of the switch position, the axial distance between the valve stem and the valve disc is lengthened under the premise of meeting the minimum space requirement. Therefore, the valve disc rotation angle when the valve is operated is reduced, and the stroke of the valve is reduced under the premise of the length of the rocker arm, thereby making the structure more compact.
  • FIG. 1 is a schematic structural view of a disc valve of the prior art
  • FIG. 2 is a schematic view of a prior art disc valve horizontal installation and valve cavity accumulation
  • Figure 3 is a schematic view of a prior art disc valve for vertical installation of a disc valve and accumulation of a valve chamber at this time;
  • FIG. 4 is a perspective view of a disc valve with a diversion hole of a double valve disc integrated type eye plate of the present invention
  • FIG. 5 is a schematic structural view of the rotation of FIG.
  • Figure 6 is a perspective view of the dual valve disc integrated eye plate of Figure 4.
  • Figure 7 is a schematic structural view of Figure 6;
  • Figure 8 is a schematic view of the valve action direction shown in Figure 4.
  • Figure 9 is a schematic view of the valve shown in Figure 4 in a fully open position
  • Figure 10 is a schematic view of the valve shown in Figure 4 in a fully closed position
  • Figure 11 is a schematic view of the valve shown in Figure 4 in the middle position
  • Figure 12 is a schematic view showing the structure of a disc valve with a diversion hole for a single valve disc integrated type glasses plate according to the present invention
  • Figure 13 is a schematic structural view of the single valve disc integrated type glasses plate of Figure 12;
  • Figure 14 is a perspective view of a baffling type double valve disc glasses plate of the present invention.
  • Figure 15 is a schematic view showing the structure of a damper type double valve disc glasses plate of the present invention.
  • valve cavity 10 valve cavity, 40 connecting rod, 49 stem connecting hole, 50 glasses plate, 51 diversion hole, 52 spring chamber, 53 connecting plate, 54 side plate, 55 valve disc sleeve, 56 diversion tube, 57 Disc hole, 58 vent, 59 baffle, 150 center body, 100 stem assembly, 101 left valve body, 102 right valve body, 103 gasket, 104 left seat, 105 right seat, 107 stud, 108 nut, 112 bushing, 113 pressure ring, 114 packing assembly, 116 packing platen, 117 rocker arm, 118 stem, 140 valve disc.
  • a disc valve with a diversion valve for an integral eye plate of a double valve disc a disc-shaped left valve body 101 and a right valve are respectively mounted on both sides of the sleeve-shaped middle valve body 150.
  • the body 102 is sealed between the three valve bodies by a gasket 103 and connected by a stud 107 and a nut 108 to form a valve chamber 10.
  • a groove is formed around the valve passage of the left valve body 101, and a left valve seat 104 is disposed in the groove; a groove is formed around the valve passage of the right valve body 101, and the right valve seat 105 is disposed in the groove.
  • the valve stem assembly 100 includes a bushing 112, a pressure ring 113, a packing assembly 114, a packing platen 116, a rocker arm 117 and a valve stem 118.
  • the valve stem 118 extends through the mounting hole formed in the right valve body 102 through the valve cavity 10.
  • valve stem 118 is installed in the recess of the left valve body 101 by means of the bushing 112 and the pressure ring 113, and the valve stem 118 in the cavity 10 is lining by means of the lining
  • the sleeve 112 and the pressure ring 113 mount the right valve body 102
  • the valve stem 118 outside the cavity 10 is mounted in the mounting hole of the right valve body 102 by means of the packing assembly 114 and the packing platen 116.
  • the other end of the valve stem 118 passes through the pin, the end plate and the rocker arm 117, and the rocker arm
  • the 117 is connected to a manual, electric or pneumatic actuator.
  • the eyeglass plate 50 has a fan shape, and may also have a semicircular shape, a T shape, and the like, and the eyeglass plate 50 is placed in the cavity 10.
  • the eyeglass plate 50 is provided with three openings, the first opening is a valve stem connecting hole 49, and the valve stem 118 passes through the valve stem connecting hole 49, so that the eyeglass plate 50 is connected with the valve stem 118, and depends on the middle of the valve stem 118.
  • the flange provided and the pressure ring 113 and the bushing 112 on the valve stem 118 in the valve chamber 10 are pressed to prevent the lens plate 50 from penetrating on the valve stem 118.
  • the second opening is a guiding hole 51.
  • the diameter of the outer wall of the guiding hole 51 is larger than the diameter of the channel.
  • the shape of the inner wall may be cylindrical, drum-shaped, tapered, etc., the height of the guiding hole 51 and the left valve seat 104 on the valve passage.
  • the distance between the right valve seats 105 is equal, or the height of the air guiding holes 51 is the same as the length of the passage through the valve chamber; in the valve chamber 10, the flow guiding holes 51 separate the passage from the valve chamber 10.
  • the third opening is a valve disc hole 57, which is a circular baffle 59 uniformly distributing the vent hole 58.
  • the spring chamber 52 is disposed in the middle of the baffle 59.
  • the spring chamber 52 is internally provided with a spring 149, and the valve disc hole 57 is installed therein.
  • valve disc 140 The valve disc 140, the two ends of the spring 149 are placed on the valve disc 140, and the spring force acts on the two valve discs 140 at the same time, so that the valve disc 140 fits snugly on the sealing surfaces of the left valve seat 104 and the right valve seat 105.
  • the valve disc 140 is rotated about the center of the spring chamber 52.
  • the circular baffle 59 around the spring chamber 52 is uniformly distributed with a through hole 58 to keep the two sides of the valve disc 140 connected to ensure pressure balance.
  • the optimal positional relationship of the three openings of the lens plate 50 is: the distance between the center of the flow guiding hole 51 and the center of the valve stem connecting hole 49 is equal to the distance between the center of the valve disc hole 57 and the center of the valve stem connecting hole 49 (ie, FIG. 8 /), also the distance between the center of the valve passage and the axial center of the valve stem 118; this ensures that the center of the flow guiding hole 51 is concentric with the valve passage when the disc valve is opened, and the valve disc 140 is closed when the disc valve is closed.
  • the valve passages are concentric.
  • the height of the flow guiding hole 51 is equal to the height of the valve disc hole 57.
  • the inner diameter of the flow guiding hole 51 is the same as the diameter of the valve passage.
  • the minimum distance between the inner wall of the air guiding hole 51 and the inner wall of the valve disc hole 57 should be smaller than the width of the left and right valve seat sealing surfaces.
  • the glasses plate 50 can be designed as a one-piece or a group according to the diameter of the valve passage or the conditions of use. As shown in Fig. 8, the valve stem 118 drives the eyeglass plate 50 to rotate about the axis of the valve stem 118 (i.e., the center of the valve stem connecting hole) (in the direction of the arrow in Fig. 8).
  • the distance a between the upper and lower surfaces a1 and a2 of the lens plate 50 is equal to the distance H between the left and right valve body seats bl and b2, and the contact faces are slidably engaged, and the medium flows through the flow guiding hole. 51 is equivalent to directly passing through the pipes D1, D2.
  • the distance between the guide hole 51 and the hole in which the valve disc 140 is placed is the thinnest, and the distance d is smaller than the width W of the seat sealing surface, so that the valve disc and the seat sealing surface are always kept in contact without being disengaged.
  • valve stem 118 drives the eyeglass plate 50 to rotate about the axis of the valve stem 118 (ie, the center of the valve stem connecting hole), under the elastic force of the spring 149 in the spring cavity 52.
  • the sealing surfaces of the two valve discs are closely matched with the sealing surfaces of the left valve seat 104 and the right valve seat 105, respectively, to achieve a closing effect.
  • a disc valve with a diversion aperture provided in Embodiment 2 is a single valve disc structure.
  • the structure is the same as that of the disc valve of the double valve disc structure in FIG. 1 (ie, FIG. 4), and the orifice 51 of the spectacle lens plate 50 has the same structure, and the valve disc hole 57 has a groove shape, that is, one side opening, One side is a closed structure. Since there is no valve disc support on the other side, in order to realize the loading spring pressing valve disc, the spring chamber 52 is also a blind hole, and the baffle 59 in the valve disc hole 57 can set whether to open the vent hole 58 according to the actual working condition. At the same time, a corresponding valve seat is placed on the side of the valve passage on which the valve disc 140 is provided.
  • Example 3 As shown in Figures 14 and 15, the group ⁇ glasses plate structure is used when the valve diameter is large or the use conditions are low.
  • the group of eyeglasses 50 is formed by a spring chamber 52, a connecting plate 53, a side plate 54, a disc sleeve 55 and a draft tube 56.
  • the connecting plate 53 is an integral flat plate, and three openings are provided therein, one is a valve rod connecting hole 49 fixedly connected with the valve stem, and one is a guiding flow concentrically connected with the guiding tube 56.
  • the hole 51 is concentrically connected to the spring chamber 52 and the valve disc sleeve 55, and is uniformly distributed around the vent hole 58.
  • the side plate 54 is also an integral flat plate, and is provided with two openings, one of which is concentric with the guiding hole 51 at the connecting plate and is concentrically connected with the guiding tube; one is concentric with the center of the spring cavity 52 and has an outer diameter
  • the valve disc has the same outer diameter and is concentrically connected to the disc sleeve 55. After the group is completed, the height of the outer surface of the two sides is equal to the distance between the left and right seats.
  • the invention is applicable to highly abrasive process systems containing solid particles such as polysilicon, silicone, alumina, and power plant ash. Because it effectively solves the problem of the accumulation of the valve cavity of the disc valve, the valve will not be stuck, and is particularly suitable for replacing other existing valve types as the ash discharge valve.

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  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)

Description

说 明 书
一种带导流孔的圆盘阀 技术领域
本发明属于一种圆盘阀， 具体涉及一种适合于介质为固体颗粒的带导流 孔的圆盘阀。
背景技术
圆盘阀是一种启闭件为圆盘， 圆盘以阀杆为轴心、 沿阀座密封面做旋转 运动的阀门。 主要应用于多晶硅、 有机硅及煤化工等行业。 其工作过程中， 执行器带动阀杆驱动阀盘， 运动过程中整个阀盘的密封面在弹簧的作用下一 直紧贴着密封座， 防止颗粒物质进入密封面。
如图 1所示， 目前公知的圆盘阀包括圆环状的中阀体 150以及位于中阀 体 150两侧的左阀体 101、 右阀体 102， 阀杆 118位于阀腔内， 且通过连杆 40、 弹簧腔 52带动阀盘 140转动， 该圆盘阀存在以下不足和缺陷：
1 ) 阀腔容易积料。 如图 2所示， 左右方向为阀门通道， 圆盘阀中阀体直 径较管路大很多， 介质不能在开关过程中全部排出， 使阀腔积料， 造成阀门 开关不到位， 甚至卡死。
2) 安装方向受限。 阀门水平安装时 （阀杆方向水平， 如图 2)， 阀腔积 料现象尤为严重。 垂直安装 （阀杆方向垂直， 如图 3， 上下方向为阀门通道） 虽可在一定程度上减缓该现象， 但不能从根本上解决积料问题。 圆盘阀阀腔 积料的现象使得其在管线布置以及安装时需考虑安装方向的影响， 水平安装 时比垂直安装更容易受积料的影响； 倾斜安装时开口 （通径） 位置偏上比偏 下更容易受积料的影响。 实际工况下受制于现场空间条件所限， 往往无法满 足最佳安装使用要求。
3 )压差损失大。现有圆盘阀中介质从流道进入阀腔时体积突然增大， 容 易造成压力下降。
4)开位密封面不受保护。 在阀门开位时， 阀座密封面不受保护， 直接受 到介质冲刷， 影响阀门密封， 降低其使用寿命。
5)高温工况下外密封受影响。在高温工况时， 阀腔部分和介质直接接触， 温度较高， 对垫片性能要求很高， 此时密封不容易实现， 且垫片寿命有限， 更换时需要整阀拆卸。
发明内容
本发明的目的是， 提供了一种介质为固体颗粒且阀腔不容易积料的圆盘 阀。
本发明的技术方案是： 一种带导流孔的圆盘阀， 包括带有阀门通道的阀 体， 所述阀体内设有与阀门通道连通的阀腔， 所述阀体上设有阀杆组件， 所 述阀杆组件中的阀杆与阀腔内设置的连杆连接， 所述连杆上设有使阀门通道 闭合的阀盘， 所述连杆上还设有阀门通道开启的导流孔。
如上所述的一种带导流孔的圆盘阀， 其中： 所述设置导流孔的高度与阀 门通道经过阀腔的长度相同； 所述导流孔的外壁直径大于阀门通道直径。
如上所述的一种带导流孔的圆盘阀， 其中： 所述连杆为眼镜板， 所述眼 镜板上开有阀杆连接孔、 导流孔和阀盘孔， 眼镜板通过阀杆连接孔与阀杆连 接， 阀盘孔内设置的弹簧腔， 阀盘孔通过挡板与弹簧腔连接， 阀盘设置于弹 簧腔端部的阀盘孔内， 弹簧腔内设有的弹簧作用于阀盘上。
如上所述的一种带导流孔的圆盘阀， 其中： 所述阀杆轴心与阀门通道中 心的距离、 所述导流孔中心与阀杆连接孔中心的距离和所述阀盘孔中心与阀 杆连接孔中心的距离三者相等。
如上所述的一种带导流孔的圆盘阀， 其中： 所述眼镜板呈扇形、 半圆形 或 T字形， 所述眼镜板为一体式结构或者组悍式结构。
如上所述的一种带导流孔的圆盘阀， 其中： 所述阀盘孔和弹簧腔同为通 孔结构， 两个阀盘分别设置在通孔结构的弹簧腔两端的阀盘孔内； 或者所述 阀盘孔和弹簧腔同为盲孔结构， 单一阀盘设置在盲孔结构的弹簧腔一端的阀 盘孔内。
如上所述的一种带导流孔的圆盘阀， 其中： 所述连接板上还设有用于保 持挡板两侧压力平衡的通气孔。
如上所述的一种带导流孔的圆盘阀， 其中： 所述阀盘孔的高度与导流孔 的高度相同， 所述导流孔的内壁直径与阀门通道直径相同。
如上所述的一种带导流孔的圆盘阀， 其中： 所述阀门通道与阀腔的连通 处设有左阀座和右阀座， 所述导流孔内壁与阀盘孔内壁的最小距离小于左、 右阀座密封面宽度。
如上所述的一种带导流孔的圆盘阀， 其中： 所述组悍式结构的眼镜板由 弹簧腔、 连接板、 侧板、 阀盘套管和导流管悍接而成； 所述连接板为一整体 平板， 上设有三处开孔， 一处为与阀杆固定相连的阀杆连接孔， 一处为与导 流管同心悍接， 一处与弹簧腔以及阀盘套管同心悍接； 侧板为一整体平板， 其上设有两处开孔， 一处与导流管同心悍接， 一处与阀盘套管同心悍接。
本发明的有益效果是：
1.本发明通过在连杆上设计连通阀门通道的导流孔结构， 使得介质运行 时经导流孔通过而不会进入阀腔， 消除了圆盘阀积料现象。 避免了现有圆盘 阀的阀腔结构使介质通过流道时容易在阀腔内堆积，最终导致阀门动作不畅， 甚至开关无法到位而失效的现象。
此外， 本发明由于消除了阀腔积料现象， 因此其安装位置不受限制。
2.本发明通过采用导流孔的内壁直径与阀门通道直径相同、导流孔的外壁 直径大于阀门通道直径结构设计， 在开位时， 导流孔与阀门通道直径一致， 使得在介质经过阀门时相当于直通管路，不会因为空间变化产生涡流等现象， 全开位时压差损失小， 避免了压力损失。 此外， 导流孔会遮挡阀座密封面而避免其受到冲刷， 全开位时阀座密封 面受保护， 降低密封垫处实际温度， 提高其使用寿命。 而现有圆盘阀开位中 阀座密封面完全暴露， 处于受介质 （如固体颗粒） 冲刷环境中， 会造成其密 封面表面质量下降， 影响密封效果。
3.本发明中连杆采用眼镜板结构， 眼镜板上开有阀杆连接孔、 导流孔和 阀盘孔。 在现有圆盘阀中带动阀盘运动的弹簧腔需与连杆连接形成一组件与 阀杆相连， 因而对其连接处悍缝强度要求较高。 本发明中将其合成为一个零 件也即眼镜板， 并在弹簧腔周围开设通孔， 提高了阀杆组件强度， 增加了运 行中的可靠性。
4.本发明提出的眼镜板结构， 阀杆轴心与阀门通道中心的距离、导流孔中 心与阀杆连接孔中心的距离和所述阀盘孔中心与阀杆连接孔中心的距离三者 相等， 考虑了开关位情况下眼镜板的运行范围， 在满足最小空间需要的前提 下加长了阀杆与阀盘的轴心距。 因此减小了阀门运行时的阀盘转角 《， 在摇 臂长度不变的前提下， 减小了阀门的行程， 从而使得结构更为紧凑。
附图说明
图 1为现有技术的一种圆盘阀结构示意图；
图 2为现有技术的一种圆盘阀水平安装及阀腔积料示意图；
图 3 为现有技术的一种圆盘阀为圆盘阀垂直安装及此时阀腔积料示意 图；
图 4为本发明的一种双阀盘一体式眼睛板的带导流孔的圆盘阀立体图； 图 5 为图 4的旋转剖面结构示意图；
图 6为图 4中的双阀盘一体式眼睛板立体图；
图 7为图 6的结构示意图；
图 8为图 4所示的阀门动作方向示意图；
图 9为图 4所示的阀门处于全开位时示意图； 图 10为图 4所示的阀门处于全关位时示意图；
图 11为图 4所示的阀门处于中间位时示意图；
图 12 为本发明的一种单阀盘一体式眼镜板的带导流孔的圆盘阀的结构 示意图；
图 13为图 12中的单阀盘一体式眼镜板结构示意图；
图 14为本发明的一种阻悍式双阀盘眼镜板立体图；
图 15为本发明的一种阻悍式双阀盘眼镜板的结构示意图。
图中： 10 阀腔， 40连杆， 49 阀杆连接孔， 50眼镜板， 51 导流孔， 52 弹簧腔， 53连接板， 54侧板， 55阀盘套管， 56导流管， 57阀盘孔， 58通气 孔， 59挡板， 150中阀体， 100阀杆组件， 101左阀体， 102右阀体， 103密 封垫， 104左阀座， 105右阀座， 107螺柱， 108螺母， 112衬套， 113压环， 114填料组件， 116填料压板， 117摇臂， 118阀杆， 140阀盘。
具体实施方式
下面结合附图与实施例对本发明提出的一种带导流孔的圆盘阀进行进一 歩的介绍：
实施例 1:
如图 4、 5所示， 一种双阀盘一体式眼睛板的带导流孔的圆盘阀， 套筒状 的中阀体 150两侧分别安装圆盘状的左阀体 101、右阀体 102， 三个阀体之间 通过密封垫 103密封， 且通过螺柱 107、 螺母 108连接， 构成阀腔 10。 在左 阀体 101 的阀门通道周围开设凹槽， 凹槽内放置左阀座 104; 在右阀体 101 的阀门通道周围开设凹槽， 凹槽内防置右阀座 105。 阀杆组件 100， 包括衬套 112、压环 113、填料组件 114、填料压板 116、摇臂 117和阀杆 118， 阀杆 118 通过右阀体 102上开设的安装孔， 贯穿阀腔 10内， 并插入到左阀体 101上开 设的凹槽内， 阀杆 118的一端借助于衬套 112和压环 113安装在左阀体 101 的凹槽内， 腔体 10内的阀杆 118借助于衬套 112和压环 113安装右阀体 102 的安装孔内、腔体 10外的阀杆 118借助于填料组件 114和填料压板 116安装 右阀体 102的安装孔内， 阀杆 118的另一端通过销钉、端板与摇臂 117， 摇臂 117与手动、 电动或气动执行机构相连。
如图 6、 7所示， 眼镜板 50为扇形， 也可以是半圆形， T字形等结构， 眼镜板 50放置于腔体 10内。所述眼镜板 50设有三处开孔， 第一处开孔为阀 杆连接孔 49， 阀杆 118穿过阀杆连接孔 49， 实现眼镜板 50与阀杆 118连接， 并依靠阀杆 118中部设置的凸缘和阀腔 10内阀杆 118上的压环 113、衬套 112 压紧， 防止眼镜板 50在阀杆 118上穿动。 第二处开孔为导流孔 51， 导流孔 51的外壁直径大于通道直径， 内壁形状可以是圆柱形、 鼓形、 锥形等， 导流 孔 51的高度与阀门通道上左阀座 104、 右阀座 105间的距离相等， 或者说导 流孔 51的高度与通道经过阀腔的长度相同； 在所述的阀腔 10内， 导流孔 51 将通道与阀腔 10隔开。 第三处开孔为阀盘孔 57， 其内为一均布通气孔 58的 圆形挡板 59， 挡板 59中间设置弹簧腔 52， 弹簧腔 52内置有弹簧 149， 阀盘 孔 57内安装阀盘 140， 弹簧 149两端顶在阀盘 140， 弹簧力同时作用在两阀 盘 140上， 使阀盘 140紧密贴合在左阀座 104和右阀座 105的密封面上。 阀 盘 140以弹簧腔 52的中心为轴转动，弹簧腔 52四周的圆形挡板 59上均布通 气孔 58保持阀盘 140两侧连通以保证压力平衡。
所述眼镜板 50三处开孔的最佳位置关系是： 导流孔 51中心与阀杆连接 孔 49中心的距离等于阀盘孔 57的中心与阀杆连接孔 49中心的距离 （即图 8 中的 /)， 也均为阀门通道中心与阀杆 118轴心的距离； 这样保证了导流孔 51 的中心在圆盘阀开启时与阀门通道同心， 阀盘 140在圆盘阀关闭时与阀门通 道同心。导流孔 51的高度与阀盘孔 57的高度相等。导流孔 51的内径与阀门 通道直径相同。 导流孔 51 内壁与阀盘孔 57内壁的最小距离应小于左、 右阀 座密封面宽度。
眼镜板 50可根据阀门通道直径或使用条件设计为一体式或者组悍式。 如图 8所示， 阀杆 118带动眼镜板 50绕阀杆 118轴心（即阀杆连接孔的 中心） 转动 （图 8中箭头方向）。
如图 9所示， 当阀门在全开位时， 眼镜板 50上下表面 al、 a2距离 h与 左右阀体阀座表面 bl、 b2距离 H相等， 各接触面滑动配合， 介质流经导流 孔 51相当于直接通过管道 Dl、 D2。设导流孔 51与置放阀盘 140的孔之间壁 厚最薄处距离 d小于阀座密封面宽度 W， 因此阀盘与阀座密封面始终保持贴 合状态而不会脱开。
如图 10所示， 当阀门在全关位时， 阀杆 118带动眼镜板 50绕阀杆 118 轴心（即阀杆连接孔的中心）转动，在弹簧腔 52内弹簧 149的弹性力作用下， 两阀盘密封面分别与左阀座 104、 右阀座 105密封面紧密贴合， 达到关闭效 果。
如图 11所示， 当阀门在中间位时， 即导流孔 51与阀门通道不完全对应 时； 由于眼镜板 50的作用， 介质从导流孔 51中经过而不会进入阀腔， 介质 只是随着开位大小的不同发生流量大小的变化。 在由开到关的过程中， 部分 介质在阀门关闭后残留在导流孔与左右阀体法兰面形成的腔体内。 在由关到 开的过程中， 此部分介质会在导流孔内表面推力带动下如同被"清扫"一样重 新回到阀门通道中。
实施例 2:
如图 12、 13所示，实施例 2提供的一种带导流孔的圆盘阀为单阀盘结构。 其结构与实施例 1 中双阀盘结构的圆盘阀 （即图 4 ) 相比， 眼镜板 50中导 流孔 51结构相同， 而阀盘孔 57为凹槽状， 即一侧开孔、 一侧为封闭的结构。 由于另一侧没有阀盘支撑，为了实现加载弹簧压紧阀盘，弹簧腔 52也为盲孔， 阀盘孔 57内的挡板 59可根据实际工况设置是否开通气孔 58。 同时， 在设有 阀盘 140的阀门通道一侧置有相应的阀座。
实施例 3: 如图 14、 15所示， 当阀门口径较大或使用条件要求较低时采用组悍式眼 镜板结构。 组悍式眼镜板 50由弹簧腔 52， 连接板 53， 侧板 54， 阀盘套管 55 和导流管 56悍接而成。 其中出于强度考虑， 连接板 53为一整体平板， 上设 有三处开孔， 一处为与阀杆固定相连的阀杆连接孔 49， 一处为与导流管 56 同心悍接的导流孔 51， 一处与弹簧腔 52以及阀盘套管 55同心悍接， 周围均 布通气孔 58。 侧板 54 同样为一整体平板， 其上设有两处开孔， 一处与连接 板处导流孔 51同心且与导流管同心悍接； 一处与弹簧腔 52中心同心且外径 与阀盘外径一致， 且与阀盘套管 55同心悍接。组悍完成后两侧板外表面高度 与左、 右阀座间距离相等。
本发明可适用于含有固体颗粒、 如多晶硅、 有机硅、 氧化铝以及电站灰 渣等高磨损的工艺系统。 因其有效解决了圆盘阀阀腔积料的问题， 阀门不会 卡死， 特别适用于替代现有的其他阀型作为排灰阀门使用。

Claims

权 利 要 求 书
1.一种带导流孔的圆盘阀， 包括带有阀门通道的阀体， 所述阀体内设有 与阀门通道连通的阀腔（10)， 所述阀体上设有阀杆组件（100)， 所述阀杆组 件 （100) 中的阀杆 （118) 与阀腔 （10) 内设置的连杆 （40) 连接， 所述连 杆（40)上设有使阀门通道闭合的阀盘 （140)， 其特征在于： 所述连杆（40) 上还设有阀门通道开启的导流孔 （51 )。
2.如权利要求 1所述的一种带导流孔的圆盘阀， 其特征在于： 所述设置 导流孔（51 )的高度与阀门通道经过阀腔（10)的长度相同；所述导流孔（51 ) 的外壁直径大于阀门通道直径。
3.如权利要求 1或 2所述的一种带导流孔的圆盘阀， 其特征在于： 所述 连杆 （40) 为眼镜板 （50)， 所述眼镜板 （50) 上开有阀杆连接孔 （49)、 导 流孔 (51 )和阀盘孔（57)， 眼镜板 (50)通过阀杆连接孔 (49)与阀杆 ( 118) 连接， 阀盘孔 （57) 内设置的弹簧腔 （52)， 阀盘孔 （57 )通过挡板 （59) 与 弹簧腔（52)连接， 阀盘（140)设置于弹簧腔（52)端部的阀盘孔（57) 内， 弹簧腔 （52) 内设有的弹簧作用于阀盘 （140) 上。
4.如权利要求 3 所述的一种带导流孔的圆盘阀， 其特征在于： 所述阀杆 ( 118)轴心与阀门通道中心的距离、所述导流孔（51 )中心与阀杆连接孔（49) 中心的距离和所述阀盘孔 （57 ) 中心与阀杆连接孔 （49) 中心的距离三者相
5.如权利要求 3所述的一种带导流孔的圆盘阀，其特征在于：所述眼镜板 (50) 呈扇形、 半圆形或 T字形， 所述眼镜板 （50) 为一体式结构或者组悍 式结构。
6.如权利要求 3所述的一种带导流孔的圆盘阀， 其特征在于： 所述阀盘 孔 （57) 和弹簧腔（52) 同为通孔结构， 两个阀盘 （140) 分别设置在通孔结 构的弹簧腔 （52) 两端的阀盘孔 （57) 内； 或者所述阀盘孔 （57) 和弹簧腔 (52) 同为盲孔结构， 单一阀盘（140) 设置在盲孔结构的弹簧腔（52)—端 的阀盘孔 （57) 内。
7.如权利要求 3 所述的一种带导流孔的圆盘阀， 其特征在于： 所述连接 板 （53) 上还设有用于保持挡板两侧压力平衡的通气孔 （58)。
8.如权利要求 3 所述的一种带导流孔的圆盘阀， 其特征在于： 所述阀盘 孔 （57) 的高度与导流孔 （51) 的高度相同， 所述导流孔 （51) 的内壁直径 与阀门通道直径相同。
9.如权利要求 3所述的一种带导流孔的圆盘阀， 其特征在于： 所述阀门 通道与阀腔（10) 的连通处设有左阀座 （104) 和右阀座 （105)， 所述导流孔
(51) 内壁与阀盘孔 （57) 内壁的最小距离小于左、 右阀座密封面宽度。
10.如权利要求 5所述的一种带导流孔的圆盘阀， 其特征在于： 所述组悍 式结构的眼镜板 （50) 由弹簧腔（52)、 连接板 （53)、 侧板 （54)、 阀盘套管
(55) 和导流管 （56) 悍接而成； 所述连接板 （53) 为一整体平板， 上设有 三处开孔， 一处为与阀杆固定相连的阀杆连接孔， 一处为与导流管 （56) 同 心悍接， 一处与弹簧腔 （52) 以及阀盘套管 （55) 同心悍接； 侧板 （54) 为 一整体平板， 其上设有两处开孔， 一处与导流管 （56) 同心悍接， 一处与阀 盘套管 （55) 同心悍接。
2
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