CN106763822A - A kind of four eccentric-butterfly-valves - Google Patents
A kind of four eccentric-butterfly-valves Download PDFInfo
- Publication number
- CN106763822A CN106763822A CN201611153641.6A CN201611153641A CN106763822A CN 106763822 A CN106763822 A CN 106763822A CN 201611153641 A CN201611153641 A CN 201611153641A CN 106763822 A CN106763822 A CN 106763822A
- Authority
- CN
- China
- Prior art keywords
- valve
- butterfly
- eccentric
- sealing surface
- plane
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 68
- 230000007935 neutral effect Effects 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 229910002804 graphite Inorganic materials 0.000 claims description 3
- 239000010439 graphite Substances 0.000 claims description 3
- 239000012530 fluid Substances 0.000 abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- 230000001052 transient effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/226—Shaping or arrangements of the sealing
- F16K1/2261—Shaping or arrangements of the sealing the sealing being arranged on the valve member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
-
- 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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
- Lift Valve (AREA)
Abstract
Description
技术领域technical field
本发明属于蝶阀领域，具体涉及一种四偏心蝶阀。The invention belongs to the field of butterfly valves, in particular to a four-eccentric butterfly valve.
背景技术Background technique
现有的三偏心蝶阀由于其“瞬开”、“瞬关”的特性，在关闭时，具有严重“水锤”现象；当采用气动控制装置时，更是需要配置相应液压缓冲装置进行消除，增加了蝶阀的复杂性以及使用成本。Due to the characteristics of "instant opening" and "instant closing", the existing triple eccentric butterfly valve has a serious "water hammer" phenomenon when it is closed; when a pneumatic control device is used, it is necessary to configure a corresponding hydraulic buffer device to eliminate it. Increased the complexity of the butterfly valve and the cost of use.
为了减轻三偏心蝶阀“顺开”、“顺关”所带来的严重的“水锤”现象，去掉三偏心蝶阀使用时附加配置的液压缓冲装置，简化结构，节约成本，提出了一种四偏心蝶阀结构。现目前设计的四偏心蝶阀是针对不同的问题进行解决，没有对“水锤”现象进行解决；且其中有些四偏心蝶阀提出的第四个偏心在三偏心蝶阀结构上已经存在，只是未明确进行说明，其结构在实质上没有改变。因此，现有的技术没有解决三偏心的“水锤”现象。In order to alleviate the serious "water hammer" phenomenon caused by the "smooth opening" and "smooth closing" of the triple eccentric butterfly valve, remove the additional hydraulic buffer device when the triple eccentric butterfly valve is used, simplify the structure, and save costs. Eccentric butterfly valve structure. The currently designed four-eccentric butterfly valves are designed to solve different problems, and the phenomenon of "water hammer" has not been solved; and the fourth eccentricity proposed by some of the four-eccentric butterfly valves already exists in the structure of the three-eccentric butterfly valve, but it has not been clearly implemented. Note that its structure has not changed substantially. Therefore, the existing technology does not solve the "water hammer" phenomenon of triple eccentricity.
发明内容Contents of the invention
本发明的目的是减轻三偏心蝶阀“顺开”、“顺关”所带来的严重的“水锤”现象，从而省去三偏心蝶阀使用时所附加配置的液压缓冲装置。The purpose of the present invention is to alleviate the serious "water hammer" phenomenon caused by the "smooth opening" and "smooth closing" of the triple eccentric butterfly valve, thereby saving the additional hydraulic buffer device when the triple eccentric butterfly valve is used.
为实现本发明目的而采用的技术方案是这样的，一种四偏心蝶阀，包括阀体、多层次密封圈、蝶板、阀轴、压板、阀座和端盖。所述阀体具有一阀门流道，所述蝶板设置在阀门流道内。所述蝶板的旋转中心线与阀门流道中心线之间存在偏心距e。所述压板将多层次密封圈压紧在蝶板的一侧。所述压板通过螺栓与蝶板固定连接。所述阀轴通过键和定位销连接在蝶板的另一侧。The technical solution adopted to realize the purpose of the present invention is as follows, a four-eccentric butterfly valve, including a valve body, a multi-layer sealing ring, a butterfly plate, a valve shaft, a pressure plate, a valve seat and an end cover. The valve body has a valve flow channel, and the butterfly plate is arranged in the valve flow channel. There is an eccentricity e between the centerline of rotation of the butterfly plate and the centerline of the flow channel of the valve. The pressing plate presses the multi-layer sealing ring on one side of the butterfly plate. The pressure plate is fixedly connected with the butterfly plate through bolts. The valve shaft is connected to the other side of the butterfly plate through a key and a positioning pin.
所述阀座通过端盖固定在阀体内。所述蝶板的旋转中心线与阀座的中性面之间存在偏心距d。所述阀座的内表面与多层次密封圈的外表面相配合，从而形成带有锥度的环形密封面。所述环形密封面的轴线与阀门流道中心线在平面Ⅰ内形成夹角α。所述平面Ⅰ为阀体的对称平面，且平面Ⅰ与阀轴的轴线垂直。所述环形密封面的轴线与平面Ⅰ之间形成夹角δ。The valve seat is fixed in the valve body through the end cover. There is an eccentricity d between the rotation centerline of the butterfly plate and the neutral plane of the valve seat. The inner surface of the valve seat cooperates with the outer surface of the multi-layer sealing ring to form a tapered annular sealing surface. The axis of the annular sealing surface forms an included angle α with the centerline of the flow channel of the valve in plane I. The plane I is a symmetrical plane of the valve body, and the plane I is perpendicular to the axis of the valve shaft. An angle δ is formed between the axis of the annular sealing surface and the plane I.
进一步，所述蝶板的一侧中心具有凸台，另一侧中心具有凹槽。所述压板的中心开有与凸台相配合的通孔。所述阀轴与凹槽之间形成空隙。Further, the center of one side of the butterfly plate has a boss, and the center of the other side has a groove. The center of the pressing plate is provided with a through hole matched with the boss. A gap is formed between the valve shaft and the groove.
进一步，所述多层次密封圈由三层金属硬密封圈和两层石墨软密封圈相间组合而成。Furthermore, the multi-layer sealing ring is composed of three layers of metal hard sealing rings and two layers of graphite soft sealing rings.
进一步，所述多层次密封圈与蝶板之间还设置有柔性垫圈。所述多层次密封圈通过柔性垫圈的挤压变形产生位移。Further, a flexible gasket is also arranged between the multi-layer sealing ring and the butterfly plate. The multi-layer sealing ring is displaced by extrusion deformation of the flexible gasket.
进一步，带有锥度的环形密封面为锥体侧面的一部分，它的横截面为椭圆。Further, the tapered annular sealing surface is a part of the side of the cone, and its cross section is elliptical.
本发明的技术效果是毋庸置疑的。四偏心蝶阀的第四个偏心δ，改变了密封面的形状，使得在密封面的相同位置，四偏心蝶阀的密封面锥度与三偏心蝶阀密封面锥度不同，其密封扰乱了小开度下，流体的流动，增大了流阻，减小了流量，从而减少了关闭瞬间的流量变化量，减轻了“水锤”现象。The technical effect of the present invention is beyond doubt. The fourth eccentric δ of the four-eccentric butterfly valve changes the shape of the sealing surface, so that at the same position of the sealing surface, the taper of the sealing surface of the four-eccentric butterfly valve is different from the taper of the sealing surface of the three-eccentric butterfly valve, and its sealing disturbs the small opening. The flow of fluid increases the flow resistance and reduces the flow rate, thereby reducing the flow change at the moment of closing and reducing the "water hammer" phenomenon.
附图说明Description of drawings
图1为本发明四偏心蝶阀的剖视图；Fig. 1 is the sectional view of four eccentric butterfly valves of the present invention;
图2为本发明四偏心蝶阀的左视图；Fig. 2 is the left side view of the four eccentric butterfly valve of the present invention;
图3为三偏心蝶阀的左视图；Fig. 3 is a left view of a triple eccentric butterfly valve;
图4为三偏心蝶阀与四偏心蝶阀密封面的投影对比图；Figure 4 is a projection comparison diagram of the sealing surfaces of the triple eccentric butterfly valve and the quadruple eccentric butterfly valve;
图5为三偏心蝶阀10°开度下的流线图；Figure 5 is a streamline diagram of a triple eccentric butterfly valve with an opening of 10°;
图6为四偏心蝶阀10°开度下的流线图。Figure 6 is a streamline diagram of a four-eccentric butterfly valve with an opening of 10°.
图中：阀体1、多层次密封圈2、连接螺栓3、蝶板4、阀轴5、压板6、柔性垫圈7、阀座8、端盖9、端盖螺栓10。In the figure: valve body 1, multi-layer sealing ring 2, connecting bolt 3, butterfly plate 4, valve shaft 5, pressure plate 6, flexible gasket 7, valve seat 8, end cover 9, end cover bolt 10.
具体实施方式detailed description
下面结合附图和实施例对本发明作进一步说明，但不应该理解为本发明上述主题范围仅限于下述实施例。在不脱离本发明上述技术思想的情况下，根据本领域普通技术知识和惯用手段，做出各种替换和变更，均应包括在本发明的保护范围内。The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but it should not be understood that the scope of the subject matter of the present invention is limited to the following embodiments. Without departing from the above-mentioned technical ideas of the present invention, various replacements and changes made according to common technical knowledge and conventional means in this field shall be included in the protection scope of the present invention.
实施例1：Example 1:
参见图1和图2，本实施例提供一种四偏心蝶阀，主要包括阀体1、多层次密封圈2、蝶板4、阀轴5、压板6、阀座8和端盖9。所述阀体1具有一阀门流道，所述蝶板4设置在阀门流道内。所述蝶板4的旋转中心线与阀门流道中心线之间存在偏心距e。所述压板6将多层次密封圈2压紧在蝶板4的一侧。所述蝶板4的一侧中心具有凸台，另一侧中心具有凹槽。所述压板6的中心开有与凸台相配合的通孔，这样便于更好地将多层次密封圈固定在蝶板4上且节省材料。所述压板6通过连接螺栓3与蝶板4固定连接。Referring to Figures 1 and 2, this embodiment provides a four-eccentric butterfly valve, which mainly includes a valve body 1, a multi-layer sealing ring 2, a butterfly plate 4, a valve shaft 5, a pressure plate 6, a valve seat 8 and an end cover 9. The valve body 1 has a valve flow channel, and the butterfly plate 4 is arranged in the valve flow channel. There is an eccentricity e between the rotation centerline of the butterfly plate 4 and the centerline of the valve channel. The pressing plate 6 presses the multi-layer sealing ring 2 against one side of the butterfly plate 4 . The center of one side of the butterfly plate 4 has a boss, and the center of the other side has a groove. The center of the pressure plate 6 is provided with a through hole matched with the boss, which is convenient for better fixing the multi-layer sealing ring on the butterfly plate 4 and saves material. The pressure plate 6 is fixedly connected with the butterfly plate 4 through the connecting bolt 3 .
本实施例中，所述多层次密封圈2由三层金属硬密封圈和两层石墨软密封圈相间组合而成，使其同时具有金属硬密封承压高和非金属软密封密封性好的双重优点。所述多层次密封圈2与蝶板4之间还设置有柔性垫圈7。在遇到过大关闭冲击时，多层次密封圈2能够通过柔性垫圈7的挤压变形，略微向右移动，从而保护密封面。In this embodiment, the multi-layer sealing ring 2 is composed of three layers of metal hard sealing rings and two layers of graphite soft sealing rings, so that it has both high pressure bearing of metal hard sealing and good sealing performance of non-metallic soft sealing Double advantage. A flexible gasket 7 is also arranged between the multi-layer sealing ring 2 and the butterfly plate 4 . When encountering an excessive closing impact, the multi-layer sealing ring 2 can move slightly to the right through the extrusion deformation of the flexible gasket 7, thereby protecting the sealing surface.
所述阀轴5通过键和定位销连接在蝶板4的另一侧，其中键用于传递扭矩，定位销用于蝶板4在阀轴5上的定位，以便于安装。所述阀轴5与蝶板4的凹槽之间形成一段空隙，从而降低流阻系数，节约材料成本。The valve shaft 5 is connected to the other side of the butterfly plate 4 through a key and a positioning pin, wherein the key is used for torque transmission, and the positioning pin is used for positioning the butterfly plate 4 on the valve shaft 5 for easy installation. A gap is formed between the valve shaft 5 and the groove of the butterfly plate 4, thereby reducing the flow resistance coefficient and saving material cost.
所述阀座8通过端盖9固定在阀体1内。所述蝶板4的旋转中心线与阀座8的中性面之间存在偏心距d。所述阀座8的内表面与多层次密封圈2的外表面相配合，从而形成带有锥度的环形密封面。带有锥度的环形密封面为锥体侧面的一部分，它的横截面为椭圆，其中横截面是与阀门流道中心线相垂直的平面。所述环形密封面的轴线与阀门流道中心线在平面Ⅰ内形成夹角α。所述平面Ⅰ为阀体1的对称平面，且平面Ⅰ与阀轴5的轴线垂直。所述环形密封面的轴线与平面Ⅰ之间形成夹角δ。The valve seat 8 is fixed in the valve body 1 through the end cover 9 . There is an eccentricity d between the rotation centerline of the butterfly plate 4 and the neutral plane of the valve seat 8 . The inner surface of the valve seat 8 cooperates with the outer surface of the multi-layer sealing ring 2 to form a tapered annular sealing surface. The tapered annular sealing surface is a part of the side of the cone, and its cross section is an ellipse, wherein the cross section is a plane perpendicular to the center line of the valve flow channel. The axis of the annular sealing surface forms an included angle α with the centerline of the flow channel of the valve in plane I. The plane I is a symmetrical plane of the valve body 1 , and the plane I is perpendicular to the axis of the valve shaft 5 . An angle δ is formed between the axis of the annular sealing surface and the plane I.
即在本发明中的四个偏心具体为：蝶板4的旋转中心线与阀座8的中性面之间的偏心距d；蝶板4的旋转中心线与阀门流道中心线之间的偏心距e；环形密封面的轴线与阀门流道中心线在平面Ⅰ内形成夹角α；环形密封面的轴线与平面Ⅰ之间形成夹角δ(如图2所示)。其中在三偏心蝶阀的密封锥面轴线在平面Ⅰ内，不存在δ这个偏心角(如图3所示)。That is, the four eccentricities in the present invention are specifically: the eccentricity d between the centerline of rotation of the butterfly plate 4 and the neutral plane of the valve seat 8; the distance d between the centerline of rotation of the butterfly plate 4 and the centerline of the valve runner Eccentricity e; the axis of the annular sealing surface and the centerline of the valve flow channel form an angle α in plane I; the axis of the annular sealing surface and plane I form an angle δ (as shown in Figure 2). Among them, the axis of the sealing cone surface of the triple eccentric butterfly valve is in the plane I, and the eccentric angle δ does not exist (as shown in Figure 3).
环形密封面的轴线与平面Ⅰ之间形成夹角δ，改变了密封面的形状，使得在密封面的相同位置，四偏心蝶阀的密封面锥度与三偏心蝶阀密封面锥度不同。如图4所示，实线为四偏心蝶阀密封面的投影线框图，虚线为三偏心蝶阀密封面的投影线框图。从图中可以看到，三偏心蝶阀密封面关于平面Ⅰ对称，四偏心蝶阀密封面不再关于平面Ⅰ对称。经过流体分析软件fluent模拟分析，其密封扰乱了小开度下，流体的流动，增大了流阻，减小了流量，从而减少了关闭瞬间的流量变化量，减轻了“水锤”现象。The angle δ formed between the axis of the annular sealing surface and the plane I changes the shape of the sealing surface, so that at the same position of the sealing surface, the taper of the sealing surface of the four-eccentric butterfly valve is different from that of the sealing surface of the triple-eccentric butterfly valve. As shown in Figure 4, the solid line is the projected wireframe diagram of the sealing surface of the four-eccentric butterfly valve, and the dotted line is the projected wireframe diagram of the sealing surface of the triple-eccentric butterfly valve. It can be seen from the figure that the sealing surface of the three-eccentric butterfly valve is symmetrical about the plane I, and the sealing surface of the four-eccentric butterfly valve is no longer symmetrical about the plane I. After the simulation analysis of the fluid analysis software fluent, the seal disturbs the flow of the fluid under the small opening, increases the flow resistance and reduces the flow rate, thereby reducing the flow change at the moment of closing and reducing the "water hammer" phenomenon.
实施例2：Example 2:
参见图5和图6，分别为三偏心蝶阀和四偏心蝶阀结构在10°开度下的流线分布图。从图中可得，10°开度下，三偏心蝶阀在蝶板4上下两端的高速射流之间先形成一个小型涡流，之后又形成一个大涡流，影响流体流动；Referring to Fig. 5 and Fig. 6, they are respectively the streamline distribution diagrams of the structure of triple eccentric butterfly valve and quadruple eccentric butterfly valve under the opening degree of 10°. It can be seen from the figure that under the opening of 10°, the triple eccentric butterfly valve first forms a small vortex between the high-speed jets at the upper and lower ends of the butterfly plate 4, and then forms a large vortex, which affects the fluid flow;
四偏心蝶阀在上下两端的高速射流区先形成了三个小涡流，然后形成一个大涡流，阀后流体流动更为紊乱，增大了流体流动阻力；但影响蝶阀小开度下的流体流动的主要因素是阀后形成一个大涡流。因此，四偏心蝶阀未改变三偏心蝶阀流体的整体流动状态，但改变了其局部流体的流动状态。Four eccentric butterfly valves first form three small vortices in the high-speed jet area at the upper and lower ends, and then form a large vortex. The fluid flow behind the valve is more turbulent, which increases the fluid flow resistance; but affects the fluid flow under the small opening of the butterfly valve. The main factor is the formation of a large vortex behind the valve. Therefore, the four-eccentric butterfly valve does not change the overall flow state of the three-eccentric butterfly valve fluid, but changes the flow state of its local fluid.
如下表格所示，下表为三偏心蝶阀与四偏心蝶阀的流量系数和流阻系数。As shown in the table below, the following table shows the flow coefficient and flow resistance coefficient of the triple eccentric butterfly valve and the quadruple eccentric butterfly valve.
从表中可以得到，四偏心蝶阀结构在90°全开时，其流阻系数为2.10比三偏心结构2.12要小，略微提高了蝶阀的流通能力；因此，四偏心蝶阀没有增大全开时流阻。在开度为10°时，四偏心蝶阀的流阻系数为931.20比三偏心蝶阀852.21要大；四偏心蝶阀的流量系数为61.19比三偏心蝶阀的63.87要小，减小了关闭瞬间的流量变化量，减轻了蝶阀关闭瞬间的“水锤”现象。It can be seen from the table that when the four-eccentric butterfly valve structure is fully open at 90°, its flow resistance coefficient is 2.10, which is smaller than that of the three-eccentric structure 2.12, which slightly improves the flow capacity of the butterfly valve; therefore, the four-eccentric butterfly valve does not increase the flow rate when fully open. resistance. When the opening is 10°, the flow resistance coefficient of the four-eccentric butterfly valve is 931.20, which is larger than that of the triple-eccentric butterfly valve, which is 852.21; the flow coefficient of the four-eccentric butterfly valve is 61.19, which is smaller than that of the triple-eccentric butterfly valve, which reduces the flow change at the moment of closing The amount reduces the "water hammer" phenomenon when the butterfly valve is closed.
因此，四偏心蝶阀结构既保持了三偏心结构良好的流体特性情况下，又增大了在小开度下介质的流阻、使得流量减小，能够减轻了蝶阀关闭瞬间的“水锤”现象，降低使用成本。Therefore, the four-eccentric butterfly valve structure not only maintains the good fluid characteristics of the three-eccentric structure, but also increases the flow resistance of the medium at a small opening, reducing the flow rate and reducing the "water hammer" phenomenon when the butterfly valve is closed. , reduce the cost of use.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611153641.6A CN106763822A (en) | 2016-12-14 | 2016-12-14 | A kind of four eccentric-butterfly-valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611153641.6A CN106763822A (en) | 2016-12-14 | 2016-12-14 | A kind of four eccentric-butterfly-valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106763822A true CN106763822A (en) | 2017-05-31 |
Family
ID=58887993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611153641.6A Pending CN106763822A (en) | 2016-12-14 | 2016-12-14 | A kind of four eccentric-butterfly-valves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106763822A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939989A (en) * | 2017-12-31 | 2018-04-20 | 天津富赛克流体控制设备有限公司 | A seating three-eccentric-butterfly-valve living |
| CN110578803A (en) * | 2019-09-12 | 2019-12-17 | 西派集团有限公司 | Four eccentric frictionless wedge type butterfly valve |
| CN110953354A (en) * | 2019-12-23 | 2020-04-03 | 河源孚罗泰自控阀门有限公司 | Four-eccentric butterfly valve |
| CN114110185A (en) * | 2021-11-23 | 2022-03-01 | 上海凯工阀门股份有限公司 | Variable-eccentricity hard-sealing butterfly valve |
| CN114413006A (en) * | 2022-03-01 | 2022-04-29 | 北京瑞拓江南自控设备有限公司 | Spherical bidirectional sealed four-eccentric butterfly valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3442488A (en) * | 1965-03-23 | 1969-05-06 | Karl Adams | Valve |
| CN104048057A (en) * | 2014-06-09 | 2014-09-17 | 江苏络科阀门有限公司 | Novel four-eccentric oval sealing face bidirectional pressure butterfly valve |
| CN203963046U (en) * | 2014-06-09 | 2014-11-26 | 江苏络科阀门有限公司 | The just round sealing surface Bidirectional pressure butterfly valve of one |
| CN203963045U (en) * | 2014-06-09 | 2014-11-26 | 江苏络科阀门有限公司 | A kind of novel four eccentric elliptic sealing surface Bidirectional pressure butterfly valves |
| CN105003667A (en) * | 2015-07-07 | 2015-10-28 | 武汉策尔曼自动化设备有限公司 | Four-eccentricity butterfly valve |
| CN205745345U (en) * | 2016-06-12 | 2016-11-30 | 方敏 | Positive cone three-eccentric-butterfly-valve |
| CN205745342U (en) * | 2016-05-10 | 2016-11-30 | 伯特利阀门集团有限公司 | Five eccentric tilting cambered surface sealed butterfly valves |
-
2016
- 2016-12-14 CN CN201611153641.6A patent/CN106763822A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3442488A (en) * | 1965-03-23 | 1969-05-06 | Karl Adams | Valve |
| CN104048057A (en) * | 2014-06-09 | 2014-09-17 | 江苏络科阀门有限公司 | Novel four-eccentric oval sealing face bidirectional pressure butterfly valve |
| CN203963046U (en) * | 2014-06-09 | 2014-11-26 | 江苏络科阀门有限公司 | The just round sealing surface Bidirectional pressure butterfly valve of one |
| CN203963045U (en) * | 2014-06-09 | 2014-11-26 | 江苏络科阀门有限公司 | A kind of novel four eccentric elliptic sealing surface Bidirectional pressure butterfly valves |
| CN105003667A (en) * | 2015-07-07 | 2015-10-28 | 武汉策尔曼自动化设备有限公司 | Four-eccentricity butterfly valve |
| CN205745342U (en) * | 2016-05-10 | 2016-11-30 | 伯特利阀门集团有限公司 | Five eccentric tilting cambered surface sealed butterfly valves |
| CN205745345U (en) * | 2016-06-12 | 2016-11-30 | 方敏 | Positive cone three-eccentric-butterfly-valve |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939989A (en) * | 2017-12-31 | 2018-04-20 | 天津富赛克流体控制设备有限公司 | A seating three-eccentric-butterfly-valve living |
| CN110578803A (en) * | 2019-09-12 | 2019-12-17 | 西派集团有限公司 | Four eccentric frictionless wedge type butterfly valve |
| CN110953354A (en) * | 2019-12-23 | 2020-04-03 | 河源孚罗泰自控阀门有限公司 | Four-eccentric butterfly valve |
| CN110953354B (en) * | 2019-12-23 | 2021-10-15 | 河源孚罗泰自控阀门有限公司 | Four-eccentric butterfly valve |
| CN114110185A (en) * | 2021-11-23 | 2022-03-01 | 上海凯工阀门股份有限公司 | Variable-eccentricity hard-sealing butterfly valve |
| CN114110185B (en) * | 2021-11-23 | 2024-07-19 | 上海凯工阀门股份有限公司 | Become eccentric hard seal butterfly valve |
| CN114413006A (en) * | 2022-03-01 | 2022-04-29 | 北京瑞拓江南自控设备有限公司 | Spherical bidirectional sealed four-eccentric butterfly valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106763822A (en) | A kind of four eccentric-butterfly-valves | |
| CN101725740B (en) | An impeller type anti-hammer silent check valve | |
| CN203836245U (en) | Four-eccentricity all-metal both-way sealing butterfly valve | |
| CN202691091U (en) | Butterfly valve plate based on reduction of cavitation erosion damage | |
| CN102840344B (en) | Valve plate of butterfly valve based on reduction of cavitation damage | |
| CN101487537A (en) | Pipe break valve | |
| CN107191607A (en) | A kind of butterfly valve | |
| CN204756032U (en) | Butt clamp butterfly check valve | |
| CN209839156U (en) | Axial multilayer runner stacking reinforced pumping mechanical sealing structure | |
| CN207437850U (en) | Double-disc type metal sealing check valve | |
| CN205064864U (en) | Eccentric metal of two -way four -dimension butterfly valve sealed firmly | |
| CN210770333U (en) | Sand prevention gate valve | |
| CN208381422U (en) | A kind of connection structure between valve and pipeline | |
| CN208268434U (en) | A kind of two-way very stiff and demanding all-metal sealing butterfly valve structure | |
| CN110081198B (en) | Low noise ball valve | |
| CN204201133U (en) | V-type mouth regulation gate valve | |
| CN205559818U (en) | Three eccentric half -ball valve of high temperature modification | |
| CN221743228U (en) | Butterfly valve seal | |
| CN216407855U (en) | Angle type Y-shaped valve body flow passage | |
| CN210920229U (en) | Light swing check valve | |
| WO2024060983A1 (en) | Electronic expansion valve | |
| CN204226687U (en) | A kind of High Pressure Difference two-way hard seal butterfly valve | |
| CN203670862U (en) | Spherical crown valve | |
| CN208090009U (en) | A kind of novel cross flow check valve | |
| CN222255090U (en) | Valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170531 |
|
| RJ01 | Rejection of invention patent application after publication |