CN205479402U8 - A kind of high life high-pressure stop valve - Google Patents

A kind of high life high-pressure stop valve Download PDF

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Publication number
CN205479402U8
CN205479402U8 CN201620235694.1U CN201620235694U CN205479402U8 CN 205479402 U8 CN205479402 U8 CN 205479402U8 CN 201620235694 U CN201620235694 U CN 201620235694U CN 205479402 U8 CN205479402 U8 CN 205479402U8
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valve
flap
channel
sealing surface
valve body
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CN205479402U (en
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周圆
顾明球
周斌
何磊
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Taixing Union Zond Chemicals Co ltd
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Taixing Union Zond Chemicals Co ltd
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Abstract

The utility model discloses a kind of high life high-pressure stop valve, including handwheel, stuffing seal, valve gap, valve rod, valve body, flap, wherein valve body is provided with access road, inner passage, flap passage, exit passageway;One end, described inner passage and access road connect, and two shapes in obtuse angle between passage, the other end and flap passage connect, and two passage on the same axis, wherein the junction of inner passage and flap passage is provided with valve body sealing surface, described flap passage connects near that one end of valve body sealing surface and exit passageway, and wherein valve body sealing surface is provided with valve seat with the corner of inner passage.The flow direction and the stroke ratio of this design medium are shallower, flow smooth and easy, and therefore fluid resistance is less, such that it is able to reduce the scouring force to flap, improve the service life of stop valve.

Description

一种高寿命高压截止阀A long-life high-pressure globe valve

技术领域technical field

[0001]本实用新型涉及一种高压截止阀,特别涉及一种高寿命高压截止阀。[0001] The utility model relates to a high-pressure shut-off valve, in particular to a high-life high-pressure shut-off valve.

背景技术Background technique

[0002]截止阀,是使用最广泛的阀门之一,其密封是通过对阀杆施加扭矩,阀杆在轴向方向上向阀瓣施加压力,使阀瓣密封面与阀体密封面紧密贴合,阻止介质沿密封面之间的缝隙泄漏。其结构简单,不仅适用于中低压,而且适用于高压;其密封面不易磨损和擦伤,比较耐用。但是,由于流体阻力大,长期运行时,密封可靠性下降,高压流体对密封面不停的冲刷造成密封面的磨损变形,另外,流体中的杂质、颗粒有可能聚集在密封面,造成密封不可靠,密封面磨损。Globe valve is one of the most widely used valves, and its sealing is by applying torque to the valve stem, and the valve stem applies pressure to the valve disc in the axial direction, so that the sealing surface of the valve disc and the sealing surface of the valve body are closely attached. to prevent the medium from leaking along the gap between the sealing surfaces. Its simple structure is suitable not only for medium and low pressure, but also for high pressure; its sealing surface is not easy to be worn and scratched, and is relatively durable. However, due to the large fluid resistance, the reliability of the seal decreases during long-term operation, and the continuous scouring of the sealing surface by the high-pressure fluid causes wear and deformation of the sealing surface. In addition, impurities and particles in the fluid may accumulate on the sealing surface, resulting in poor sealing. Reliable, the sealing surface is worn.

实用新型内容Utility model content

[0003]实用新型的目的:本实用新型公开一种高寿命高压截止阀,可以实现减小流体阻力,减少冲刷,减少杂质滞留的可能,提尚阀辦耐用性,提尚密封可靠性,达到提尚截止阀使用寿命的目的。Purpose of the utility model: the utility model discloses a high-life high-pressure shut-off valve, which can realize reducing fluid resistance, reducing scouring, reducing the possibility of impurity retention, improving valve durability, improving sealing reliability, reaching The purpose of improving the service life of the globe valve.

[0004]技术方案:为了实现以上目的,本实用新型公开了一种高寿命高压截止阀,包括手轮、填料密封装置、阀盖、阀杆、阀体、阀瓣,其中阀体设有入□通道、内部通道、阀瓣通道、出口通道;所述内部通道一端和入口通道连接,且两通道之间呈钝角形状,另一端和阀瓣通道连接,且两通道在同一轴线上,其中内部通道和阀瓣通道的连接处设有阀体密封面,所述阀瓣通道靠近阀体密封面的那一端和出口通道连接,阀体密封面与内部通道的拐角处设有阀座。这种设计介质的流向和行程比较平缓,流动顺畅,因此流体阻力较小,从而可以减小对阀瓣的冲刷力,减少杂质滞留的可能,提高截止阀的使用寿命。Technical scheme: in order to achieve the above purpose, the utility model discloses a kind of high-life high-pressure shut-off valve, comprising handwheel, packing sealing device, valve cover, valve stem, valve body, valve flap, wherein valve body is provided with inlet □ channel, inner channel, valve flap channel, outlet channel; one end of the inner channel is connected with the inlet channel, and the two channels are in the shape of an obtuse angle, and the other end is connected with the valve flap channel, and the two channels are on the same axis. A valve body sealing surface is provided at the connection between the channel and the valve flap channel, the end of the valve flap channel close to the valve body sealing surface is connected to the outlet channel, and a valve seat is provided at the corner of the valve body sealing surface and the inner channel. The flow direction and stroke of this design medium are relatively gentle and smooth, so the fluid resistance is small, which can reduce the scouring force on the valve disc, reduce the possibility of impurity retention, and improve the service life of the globe valve.

[0005]进一步的,上述一种高寿命高压截止阀,阀瓣包括安装部、截止部、阀瓣密封部,其中安装部和阀杆连接,截止部呈圆锥形,阀瓣密封部呈球形且表面设有阀瓣密封面。阀瓣密封部的球面设计可以将介质冲刷力向四周均匀的分散开来,因此抗冲刷力强,这种设计提高了阀瓣的耐冲刷力,也提高了截止阀的使用寿命。Further, above-mentioned a kind of high-life high-pressure cut-off valve, valve flap comprises mounting part, cut-off part, valve flap sealing part, wherein mounting part and valve stem are connected, cut-off part is conical, and valve flap sealing part is spherical and There is a disc sealing surface on the surface. The spherical design of the valve disc seal can evenly disperse the medium scouring force around, so the anti-scour force is strong. This design improves the scour resistance of the valve disc and improves the service life of the globe valve.

[0006] 进一步的,上述一种高寿命高压截止阀,所述出口通道包括第一出口通道和第二出口通道,且两通道之间呈钝角形状,第二出口通道和入口通道在同一方向上。这种设计使流道更加平缓,减小流体阻力。另外,流体通过截止阀的压力损失较小。Further, above-mentioned a kind of high-life high-pressure shut-off valve, described outlet passage comprises first outlet passage and second outlet passage, and between two passages is obtuse angle shape, and second outlet passage and inlet passage are in the same direction . This design makes the flow path smoother and reduces fluid resistance. In addition, the pressure loss of the fluid through the shut-off valve is small.

[0007] 进一步的,上述一种高寿命高压截止阀,所述阀体密封面与入口通道的中心线呈45°夹角。这种设计使流道平缓,介质流动通畅,流体阻力小,减少冲刷与杂质滞留。Further, above-mentioned a kind of high-life high-pressure shut-off valve, described valve body sealing surface and the centerline of inlet channel are 45 ° included angle. This design makes the flow channel smooth, the medium flows smoothly, the fluid resistance is small, and the scouring and impurity retention are reduced.

[0008] 进一步的,上述一种高寿命高压截止阀,所述阀瓣密封面与阀体密封面上的阀座为线接触。截止阀进行截止流体的时候,圆锥形截止部与阀体的阀座以线接触的方式进行密封,即线密封,相比面密封,线密封效果更好,更适用于运动件之间的高频撞击动作。另夕卜,还不易被杂物、固体颗粒影响,提高密封可靠性。Further, above-mentioned a kind of high-life high-pressure shut-off valve, described valve flap sealing surface and the valve seat on the valve body sealing surface are in line contact. When the globe valve shuts off the fluid, the conical cut-off part and the valve seat of the valve body are sealed in the way of line contact, that is, the line seal. Frequent impact action. In addition, it is not easy to be affected by sundries and solid particles, and the sealing reliability is improved.

[0009]进一步的,上述一种高寿命高压截止阀,所述阀瓣密封部与截止部的连接处设有阀瓣密封圈,且阀瓣密封圈与阀座为线接触。这种阀瓣上也设有密封圈的设计,作为更进一步的截流措施,在阀瓣密封面受到磨损工作效果变差的情况下,可以利用阀瓣密封圈与阀座的配合进行截流作为第二重保护,阀瓣密封圈与阀座相配合、密封,其密封效果更好,可靠性也更高。[0009] Further, in the above-mentioned high-life high-pressure cut-off valve, the junction of the valve flap sealing portion and the cut-off portion is provided with a valve flap sealing ring, and the valve flap sealing ring and the valve seat are in line contact. This kind of valve disc is also designed with a sealing ring. As a further interception measure, when the sealing surface of the valve disc is worn and the working effect is deteriorated, the cooperation between the valve disc sealing ring and the valve seat can be used to intercept the flow as the first Double protection, the valve disc sealing ring and the valve seat are matched and sealed, and the sealing effect is better and the reliability is higher.

[0010]进一步的,上述一种高寿命高压截止阀,所述阀体为304材质,阀瓣密封面为304外覆堆焊STL。这种设计使得阀体、阀瓣密封面的耐磨和耐冲刷性能得到明显增强。[0010] Further, in the above-mentioned high-life high-pressure shut-off valve, the valve body is made of 304 material, and the valve flap sealing surface is 304 overlying surfacing STL. This design makes the wear resistance and erosion resistance of the valve body and disc sealing surface significantly enhanced.

[0011]上述技术方案可以看出,本实用新型具有如下有益效果:本实用新型所述的一种高寿命高压截止阀,流道平缓,密封时不易受杂物、固体颗粒的影响,可以实现减小流体阻力,减少冲刷和杂质滞留的可能,并提高阀瓣抗冲刷能力和耐用性,提高密封可靠性,达到提高截止阀使用寿命的目的。As can be seen from the above technical scheme, the utility model has the following beneficial effects: a kind of high-life high-pressure shut-off valve of the present utility model, the flow passage is gentle, and is not easily affected by foreign matter, solid particles during sealing, and can realize Reduce fluid resistance, reduce the possibility of scouring and impurity retention, improve the anti-scour capability and durability of the valve disc, improve the sealing reliability, and achieve the purpose of improving the service life of the globe valve.

附图说明Description of drawings

[0012]图1为本实用新型所述的一种高寿命高压截止阀剖面结构图;Fig. 1 is a kind of high-life high-pressure cut-off valve sectional structure diagram of the utility model;

[0013]图2为本实用新型所述的一种高寿命高压截止阀阀瓣的详细剖面结构图;Fig. 2 is the detailed sectional structure diagram of a kind of high-life high-pressure cut-off valve flap of the utility model;

[0014] 图中:1-阀体,2-阀瓣,3-入口通道,4-内部通道,5-阀瓣通道,6-出口通道,7-阀体密封面,8-阀座,9-安装部,I O-截止部,11-阀瓣密封部,12-阀瓣密封面,13-第一出口通道,14-第二出口通道,15-阀瓣密封圈。Among the figure: 1-valve body, 2-valve disc, 3-inlet passage, 4-inner passage, 5-valve disc passage, 6-exit passage, 7-valve body sealing surface, 8-valve seat, 9 -Installation part, IO-cut-off part, 11- valve disc sealing part, 12- valve disc sealing surface, 13- first outlet channel, 14- second outlet channel, 15- valve disc sealing ring.

具体实施方式detailed description

[0015]下面结合附图,对本实用新型具体实施方式进行详细的描述。[0015] Below in conjunction with the accompanying drawings, the specific embodiments of the present utility model are described in detail.

实施例Example

[0016]本实用新型的一种高寿命高压截止阀,如图1和图2所示,包括手轮、填料密封装置、阀盖、阀杆、阀体1、阀瓣2,其中阀体I设有入口通道3、内部通道4、阀瓣通道5、出口通道6 ;阀瓣2包括与阀杆相连接的安装部9、呈圆锥形的截止部1、呈半球形的阀瓣密封部11。内部通道4和阀瓣通道5在同一轴线上且连接处设有阀体密封面7,内部通道4、阀瓣通道5与流体流向的轴心线呈45° Y型,阀瓣通道5靠近阀体密封面7的那一端和出口通道6连接,出口通道6包括第一出口通道13和第二出口通道14且两通道之间呈钝角形状,第二出口通道14和入口通道3在同一方向上。阀体密封面7与内部通道4的拐角处设有阀座8,阀瓣密封面12与阀体密封面7上的阀座8为线密封,阀瓣2的阀瓣密封部11与截止部1的连接处设有阀瓣密封圈15,阀瓣密封圈15与阀座8为线密封。另外,阀体I为304材质,阀瓣密封面12为304外覆堆焊STL。A kind of high-life high-pressure shut-off valve of the present utility model, as shown in Figure 1 and Figure 2, comprises handwheel, packing seal, valve cover, valve stem, valve body 1, valve flap 2, wherein valve body 1 There is an inlet channel 3, an inner channel 4, a valve flap channel 5, and an outlet channel 6; the valve flap 2 includes a mounting portion 9 connected with the valve stem, a conical cut-off portion 1, and a hemispherical valve flap sealing portion 11 . The inner channel 4 and the valve flap channel 5 are on the same axis and the valve body sealing surface 7 is provided at the connection. The inner channel 4, the valve flap channel 5 and the axis line of the fluid flow are in a 45° Y shape, and the valve flap channel 5 is close to the valve. The end of the body sealing surface 7 is connected to the outlet channel 6. The outlet channel 6 includes a first outlet channel 13 and a second outlet channel 14 and the shape of an obtuse angle between the two channels. The second outlet channel 14 and the inlet channel 3 are in the same direction. . There is a valve seat 8 at the corner of the valve body sealing surface 7 and the inner channel 4, the valve disc sealing surface 12 and the valve seat 8 on the valve body sealing surface 7 are line seals, the valve disc sealing part 11 of the valve disc 2 and the cut-off part A valve flap sealing ring 15 is provided at the connection of 1, and the valve flap sealing ring 15 and the valve seat 8 are line sealed. In addition, the valve body I is made of 304 material, and the valve disc sealing surface 12 is made of 304 overlay welding STL.

[0017]当阀瓣2打开,介质流通时,流体行程和流向为水平流动、135°拐弯、钝角拐弯、稍微改向调整为水平流动,其过程平缓,流体阻力较小,其中经过两次较缓和的变向后出水方向和进水方向一致,流体通过截止阀的压力损失较小。阀瓣2的阀瓣密封部11呈半球形,其大小形状适于内部通道4的大小形状,球形耐受性强,在任意一点受到作用力,力都可以向四周均匀的分散开来,所以球形比任何形状都更坚固,能较好的承受流体冲刷力;并且,阀瓣密封面12为304外覆堆焊STL,即斯泰尔合金,超硬度,耐冲刷,耐腐蚀;另外,流体行程平缓,阻力小,因此对阀瓣密封面12的冲刷力也减弱了;且该设计减少了杂质滞留的可能,避免了杂质、固体颗粒对密封面的磨损;上述的结合,更促进了截止阀寿命的大幅提高。When the valve flap 2 is opened, and the medium is in circulation, the fluid stroke and flow direction are horizontal flow, 135° turning, obtuse turning, and a slight redirection to adjust to horizontal flow, and the process is gentle, and the fluid resistance is less, wherein after two comparisons. After the moderate change of direction, the water outlet direction is the same as the water inlet direction, and the pressure loss of the fluid passing through the stop valve is small. The valve flap sealing part 11 of the valve flap 2 is hemispherical, its size and shape are suitable for the size and shape of the internal channel 4, and the spherical shape has strong tolerance. The spherical shape is stronger than any shape and can better withstand the scouring force of the fluid; and the valve disc sealing surface 12 is 304 surfacing welding STL, that is, Steyr alloy, super hardness, erosion resistance, corrosion resistance; in addition, the fluid The stroke is smooth and the resistance is small, so the scouring force on the sealing surface 12 of the valve disc is also weakened; and the design reduces the possibility of impurity retention, and avoids the wear of impurities and solid particles on the sealing surface; The above combination further promotes the shut-off valve Significant increase in lifespan.

[0018]当阀瓣2闭合截流时,阀杆推动阀瓣2克服流体压力顺着阀瓣通道5向内部通道4移动,直到阀瓣密封部11进入内部通道4,且阀瓣密封面12与阀体密封面7上的阀座8接触、压紧呈线密封状态。一体式阀体1、阀杆与阀瓣2—体加工,使阀门有更高的同心度,阀杆采用高强度钢材硬度高,使堆焊合金阀瓣密封面12有足够的母材硬度支撑,防止出现鸡蛋壳现象。另外,当阀瓣密封面12出现磨损,密封不良时,可以继续推进阀杆和阀瓣2,使阀瓣密封圈15与阀体I上的阀座8接触、压紧呈线密封,密封可靠性大幅提高。When the valve flap 2 is closed and intercepted, the valve stem pushes the valve flap 2 to overcome the fluid pressure and move to the inner channel 4 along the valve flap channel 5, until the valve flap sealing portion 11 enters the inner channel 4, and the valve flap sealing surface 12 and The valve seat 8 on the sealing surface 7 of the valve body contacts and presses to form a line sealing state. The one-piece valve body 1, the valve stem and the valve disc 2 are processed in one body, so that the valve has a higher concentricity. The valve stem is made of high-strength steel with high hardness, so that the sealing surface 12 of the surfacing alloy valve disc has sufficient base metal hardness to support , to prevent the appearance of egg shells. In addition, when the valve disc sealing surface 12 is worn and the sealing is poor, the valve stem and the valve disc 2 can continue to be pushed forward, so that the valve disc sealing ring 15 is in contact with the valve seat 8 on the valve body 1, and is pressed to form a line seal, and the sealing is reliable. sex is greatly improved.

[0019]以上所述仅是本实用新型的优选实施方式,应指出,对于本技术领域的普通技术人员来说,在不脱离本实用新型原理的前提下,还可以做出若干改进,这些改进也应视为本实用新型的保护范围。The above is only the preferred embodiment of the present utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present utility model, can also make some improvements, these improvements It should also be regarded as the protection scope of the present invention.

Claims (7)

1.一种高寿命高压截止阀,设有手轮、填料密封装置、阀盖、阀杆,其特征在于:包括:阀体(I)、阀瓣(2), 其中阀体(I)设有入口通道(3)、内部通道(4)、阀瓣通道(5)、出口通道(6); 所述内部通道(4) 一端和入口通道(3)连接,且两通道之间呈钝角形状,另一端和阀瓣通道(5)连接,且两通道在同一轴线上,其中内部通道(4)和阀瓣通道(5)的连接处设有阀体密封面(7),所述阀瓣通道(5)靠近阀体密封面(7)的那一端和出口通道(6)连接,阀体密封面(7)与内部通道(4)的拐角处设有阀座(8)。1. a high-life high-pressure shut-off valve is provided with hand wheel, packing seal, valve cover, valve stem, it is characterized in that: comprise: valve body (1), valve flap (2), wherein valve body (1) is provided with There are an inlet channel (3), an inner channel (4), a valve flap channel (5), and an outlet channel (6); one end of the inner channel (4) is connected with the inlet channel (3), and the two channels are in an obtuse angle shape , the other end is connected with the valve flap channel (5), and the two channels are on the same axis, wherein the connection between the inner channel (4) and the valve flap channel (5) is provided with a valve body sealing surface (7), the valve flap The end of the channel (5) close to the valve body sealing surface (7) is connected to the outlet channel (6), and a valve seat (8) is provided at the corner of the valve body sealing surface (7) and the inner channel (4). 2.根据权利要求1所述的一种高寿命高压截止阀,其特征在于:所述阀瓣(2)包括安装部(9 )、截止部(1 )、阀瓣密封部(11),其中安装部(9 )和阀杆连接,截止部(1 )呈圆锥形,阀瓣密封部(11)呈球形且表面设有阀瓣密封面(12)。2. a kind of high-life high-pressure shut-off valve according to claim 1, is characterized in that: described valve flap (2) comprises mounting part (9), cut-off part (1), valve flap sealing part (11), wherein The installation part (9) is connected with the valve stem, the cut-off part (1) is conical, the valve disc sealing part (11) is spherical and the surface is provided with a disc sealing surface (12). 3.根据权利要求1所述的一种高寿命高压截止阀,其特征在于:所述出口通道(6)包括第一出口通道(13)和第二出口通道(14),且两通道之间呈钝角形状,第二出口通道(14)和入口通道(3)在同一方向上。3. a kind of high-life high-pressure shut-off valve according to claim 1, is characterized in that: described outlet passage (6) comprises the first outlet passage (13) and the second outlet passage (14), and between the two passages With an obtuse shape, the second outlet channel (14) and the inlet channel (3) are in the same direction. 4.根据权利要求1所述的一种高寿命高压截止阀,其特征在于:所述阀体密封面(7)与入口通道(3)的中心线呈45°夹角。4. A kind of high-life high-pressure globe valve according to claim 1, is characterized in that: described valve body sealing surface (7) and the centerline of inlet passage (3) are 45 ° included angle. 5.根据权利要求2所述的一种高寿命高压截止阀,其特征在于:所述阀瓣密封面(12)与阀体密封面(7)上的阀座(8)为线接触。5. A kind of high-life high-pressure globe valve according to claim 2, characterized in that: the valve disc sealing surface (12) is in line contact with the valve seat (8) on the valve body sealing surface (7). 6.根据权利要求2所述的一种高寿命高压截止阀,其特征在于:所述阀瓣密封部(11)与截止部(1 )的连接处设有阀瓣密封圈(15 ),阀瓣密封圈(15 )与阀座(8 )为线接触。6. a kind of high-life high-pressure shut-off valve according to claim 2, is characterized in that: the junction of described valve flap sealing portion (11) and shut-off portion (1) is provided with valve flap sealing ring (15), valve The flap sealing ring (15) is in line contact with the valve seat (8). 7.根据权利要求2所述的一种高寿命高压截止阀,其特征在于:所述阀体(I)为304材质,阀瓣密封面(12)为304外覆堆焊STL层。7. a kind of high-life high-pressure shut-off valve according to claim 2, is characterized in that: described valve body (1) is 304 material, and valve flap sealing surface (12) is 304 overlying surfacing STL layer.
CN201620235694.1U 2016-03-25 2016-03-25 A kind of high life high-pressure stop valve Expired - Fee Related CN205479402U8 (en)

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CN110094518A (en) * 2018-01-29 2019-08-06 浙江三花智能控制股份有限公司 Shut-off valve

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Correction item: Inventor

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