阅读说明：本技术 一种超大口径长输管线全焊接球阀 (Ultra-large-diameter all-welded ball valve for long-distance pipeline ) 是由 陆怡 徐庆杰 张杨杨 于 2018-07-11 设计创作，主要内容包括：本发明涉及阀门制造技术领域,具体地说,是一种超大口径长输管线全焊接球阀,包括阀体和延长管,阀体的两侧设置延长管,阀体内部设置有一个球,球的外表面设置有标签,延长管的一端分别从阀体的两侧伸入至其内部与球面相连,延长管的另一端设置有密封盖,球上部向上延伸设置有一个圆柱形中轴超出阀体部分,中轴的顶端为阀帽部分,阀帽包括帽顶部分和帽杆部分,帽顶部分与帽杆部分采用一体成型技术制成,帽顶部分截面为正六边形,帽顶部分中间有一个圆柱形凹槽向下延伸在帽杆部分内部形成一个内腔,帽顶部分上部螺纹连接有盖型螺母,盖型螺母与中轴采用螺纹连接,盖型螺母与中轴顶部的结合部设置有向外延伸的手柄,手柄与中轴的连接位置设置有定位销。(The invention relates to the technical field of valve manufacturing, in particular to an ultra-large-diameter long pipeline all-welded ball valve which comprises a valve body and extension pipes, wherein the extension pipes are arranged on two sides of the valve body, a ball is arranged in the valve body, a label is arranged on the outer surface of the ball, one end of each extension pipe extends into the extension pipe from two sides of the valve body to be connected with a spherical surface, a sealing cover is arranged at the other end of each extension pipe, a cylindrical central shaft extending out of the valve body is upwards arranged on the upper portion of the ball, a bonnet part is arranged at the top end of the central shaft and comprises a bonnet part and a bonnet rod part, the bonnet part and the bonnet rod part are manufactured by adopting an integral forming technology, the cross section of the bonnet part is in a regular hexagon shape, a cylindrical groove is arranged in the middle of the bonnet part and extends downwards to form an inner cavity in the, the joint part of the cover-shaped nut and the top of the middle shaft is provided with a handle extending outwards, and a positioning pin is arranged at the connecting position of the handle and the middle shaft.)

1. The utility model provides an ultra-large-diameter long-distance pipeline all-welded ball valve, its characterized in that includes valve body and extension pipe, the both sides of valve body respectively are provided with an extension pipe, the inside ball that is provided with of valve body, the surface of ball is provided with the label, the one end of extension pipe is followed respectively the both sides of valve body stretch into its inside with the sphere links to each other, the other end of extension pipe is provided with sealed lid, ball upper portion upwards extends to be provided with a cylindrical axis surpass the valve body part, centraxonial top is the valve cap part, the valve cap includes cap portion and cap pole part, cap portion with cap pole part adopts integrated into one piece technology to make, cap portion cross-section is regular hexagon, cap portion middle part has a cylindrical recess downwardly extending to form an inner chamber in the cap pole part inside, cap portion top part top threaded connection has the cap type nut, the utility model discloses a carbon-containing carbon flow regulating valve, including axis, bent axle, cover type nut with the axis adopts threaded connection, cover type nut with the joint portion at axis top is provided with the outside handle that extends, the handle with centraxonial hookup location is provided with the locating pin and plays further location fixed action, the valve body internal diameter is 1600mm, the ball with connecting portion between the axis are provided with the flow regulating plate, the flow regulating plate body that the flow regulating plate made including metal material, the whole oval shape that is of flow regulating plate body, flow regulating plate body middle part transversely is provided with a recess, and the length of recess equals half of flow regulating plate body length, and evenly distributed has 12 flow regulating holes on the flow regulating plate, the valve body adopts the carbon content to make for No. 20 steel materials of 0.2%, the axis adopts 20Cr 13.

2. The ultra large diameter long pipeline all-welded ball valve according to claim 1, wherein the outer side of the cap rod part is provided with a circle of rectangular protrusions, the upper end and the lower end of the cap top part are designed by round corners, the angle α of the round corners is 15 °, the ratio of the height h1 from the upper end to the lower end of the cap top part to the height h2 of the whole valve cap is 1:3, the ratio of the height h4 from the upper end of the protrusions to the bottom of the cap rod part to the height h3 from the lower end of the protrusions to the bottom of the cap rod is 3:1, and the ratio of the outer diameter h5 of the regular hexagonal cross section of the cap top part to the height h2 of the whole valve cap is 2: 1.

3. the ultra-large diameter long pipeline all-welded ball valve according to claim 2, wherein a circle of middle shaft sleeve is arranged on the outer peripheral surface of the middle shaft, and a middle shaft flat gasket is arranged at the connecting part of the middle shaft and the ball.

4. The ultra-large diameter long pipeline all-welded ball valve according to claim 3, wherein a flat gasket, a belleville spring, a ball gasket seat, an O-shaped ring and a ball gasket are sequentially arranged between the extension pipe and the ball.

5. The all-welded ball valve for the ultra-large-diameter long-distance pipeline according to claim 4, wherein a middle shaft retainer ring, a middle shaft O-shaped ring and a shaft sleeve are sequentially arranged at a connecting part between the upper part of the middle shaft and the middle shaft sleeve from bottom to top.

6. The ultra-large-caliber long-distance pipeline all-welded ball valve as claimed in claim 5, wherein a retaining washer is arranged between the middle shaft and the cap nut, and the retaining washer is arranged at the upper part of the handle.

7. The ultra-large-caliber long pipeline all-welded ball valve according to any one of claims 1 to 6, wherein a rubber sleeve is sleeved outside the tail end of the handle and is set as a handle rubber sleeve.

Technical Field

The invention relates to the technical field of valve manufacturing, in particular to an ultra-large-diameter all-welded ball valve for a long-distance pipeline.

Background

Valves are plumbing accessories used to open and close a pipe, control flow direction, regulate and control parameters of the transport medium (temperature, pressure and flow). According to their function, they can be classified into shut-off valves, check valves, regulating valves, and the like. The valve is a control part in a fluid conveying system and has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like.

The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. The valves are further classified into cast iron valves, cast steel valves, stainless steel valves (201, 304, 316, etc.), chrome molybdenum steel valves, chrome molybdenum vanadium steel valves, dual-phase steel valves, plastic valves, nonstandard valves, etc. according to the material.

The valve seat of the ball valve is composed of a Teflon carbide sealing ring and a disk spring, so that the ball valve has strong adaptability to pressure and temperature changes, and cannot generate any leakage slip in the range of marked pressure and temperature. The integral welded ball valve is generally formed by pressing a carbon steel seamless steel pipe, has good sealing performance and corrosion resistance, and is widely applied to the field of long-distance pipelines such as natural gas, petroleum, heat supply, chemical engineering, thermal power grids and the like. However, the existing ball valve has great limitation and cannot meet the requirement of modern industrial production.

At present, the demand of ultra-large-diameter all-welded ball valves for long-distance pipelines of heat supply projects in various big cities is increased day by day, and due to the limitation of domestic technology and manufacturing level, required valves are mainly imported, so that the project cost is increased.

Disclosure of Invention

The invention aims to break the monopoly of foreign countries and lead the urban heat supply ultra-large caliber all-welded ball valve to be localized, and the service temperature of the product is as follows: -29-200 ℃, suitable media: the valve body is formed by welding steel pipes, can realize opening and emergency shutoff on a pipeline, has simple structure and good sealing performance, has small driving moment, is simple and convenient to operate, is easy to realize quick opening and closing, and has a service life as long as 30 years.

In order to achieve the purpose, the invention discloses an ultra-large-caliber long pipeline all-welded ball valve, which adopts the following specific technical scheme:

an ultra-large-diameter all-welded ball valve for a long pipeline comprises a valve body and an extension pipe, wherein the two sides of the valve body are respectively provided with the extension pipe, a ball is arranged in the valve body, the outer surface of the ball is provided with a label, one end of the extension pipe extends into the extension pipe from the two sides of the valve body respectively and is connected with the spherical surface, the other end of the extension pipe is provided with a sealing cover, the upper part of the ball extends upwards to be provided with a cylindrical middle shaft which exceeds the valve body, the top end of the middle shaft is a valve cap part, the valve cap comprises a cap top part and a cap rod part, the cap top part and the cap rod part are manufactured by adopting an integral molding technology, the cross section of the cap top part is a regular hexagon, a cylindrical groove is arranged in the middle of the cap top part and extends downwards to form an inner cavity in the cap rod part, the upper part of the, the handle is provided with the locating pin with centraxonial hookup location effect further, the valve body internal diameter is 1600mm, the connecting portion between ball and the centraxonial is provided with the flow adjusting plate, the flow adjusting plate includes the flow adjusting plate body that metal material made, the whole oval shape of flow adjusting plate body, the middle part of flow adjusting plate body transversely is provided with a recess, the length of recess equals half of flow adjusting plate body length, evenly distributed has 12 flow adjusting holes on the flow adjusting plate, the valve body adopts No. 20 steel material that the carbon content is 0.2% to make, the centraxonial adopts 20Cr13 material to make.

The invention further improves the structure, a circle of rectangular protrusions are arranged on the outer side of the cap rod part, the upper end and the lower end of the cap top part are designed in a round angle mode, the angle alpha of the round angle is 15 degrees, the ratio of the height h1 from the upper end to the lower end of the cap top part to the height h2 of the whole valve cap is 1:3, the ratio of the height h4 from the upper end to the bottom of the cap rod part to the height h3 from the lower end of the protrusion to the bottom of the cap rod part is 3:1, and the ratio of the outer diameter h5 of the regular hexagon section of the cap top part to the height h2 of the whole valve: 1.

the invention is further improved, a circle of middle shaft sleeve is arranged on the peripheral surface of the middle shaft, and a middle shaft flat gasket is arranged at the connecting part of the middle shaft and the ball.

The invention is further improved, and a flat gasket, a belleville spring, a ball gasket seat, an O-shaped ring and a ball gasket are sequentially arranged between the extension pipe and the ball.

The invention further improves that a connecting part between the upper part of the middle shaft and the middle shaft sleeve is sequentially provided with a middle shaft check ring, a middle shaft O-shaped ring and a shaft sleeve from bottom to top.

The invention further improves the structure that a retaining washer is arranged between the middle shaft and the cap nut, and the thrust washer is arranged at the upper part of the handle.

The invention is further improved, and a rubber sleeve is sleeved outside the tail end of the handle and is set as a handle rubber sleeve.

The invention has the beneficial effects that: compared with the existing check valve, the check valve has the advantages that the valve bonnet is improved, so that the check valve is firmer, better in sealing performance and longer in service life.

Drawings

Fig. 1 is a schematic structural view of the present invention.

FIG. 2 is a schematic view of the structure of the bonnet of the present invention.

Fig. 3 is a schematic cross-sectional view of the top of the cap.

Fig. 4 is an enlarged schematic view of a portion a in fig. 1.

Fig. 5 is an enlarged schematic view of a portion B in fig. 1.

Fig. 6 is a schematic structural view of the flow regulating plate of the present invention.

In the figure, 1-sealing cover, 2-extension tube, 3-valve body, 4-flat gasket, 5-belleville spring, 6-ball gasket seat, 7-O-ring, 8-ball gasket, 9-ball, 10-middle shaft flat gasket, 11-middle shaft sleeve, 12-middle shaft, 13-middle shaft retainer ring, 14-middle shaft O-ring, 15-shaft sleeve, 16-positioning pin, 17-handle, 18-backstop gasket, 19-cover nut, 20-handle rubber sleeve, 21-label, 22-valve cap, 221-cap top part, 222-cap rod part, 223-protrusion, 224-inner cavity, 225-groove, 23-flow regulating plate, 2301-flow regulating plate body, 2302-groove and 2303-flow regulating hole.

Detailed Description

For the purpose of enhancing the understanding of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and examples, which are provided for the purpose of illustration only and are not intended to limit the scope of the present invention.