CN208750055U - A kind of super large caliber welding ball valve - Google Patents

Abstract

The utility model relates to technical field of valve manufacturing, specifically, it is a kind of super large caliber welding ball valve, including valve body and extension tube, the two sides of valve body are each provided with an extension tube, valve inner is provided with a ball, extension tube stretches to its inside from the two sides of valve body respectively and is connected with spherical surface, ball top, which upwardly extends, is provided with a cylindrical axis beyond body portion, cover type nut is provided at the top of axis, cover type nut is used with axis and is threadedly coupled, engaging portion at the top of cover type nut and axis is provided with outwardly extending handle, handle uses butterfly, the link position of handle and axis is provided with positioning pin and plays further positioning fixed function, compared with existing ball valve, butterfly shape is used at the handle of the utility model, easily facilitate artificial grasping, so that folding valve is more time saving and energy saving, it is convenient and efficient.

Description

A kind of super large caliber welding ball valve

Technical field

The utility model relates to technical field of valve manufacturing, specifically, being a kind of super large caliber welding ball valve.

Background technique

Valve is for being opened and closed pipeline, control flow direction, the parameter (temperature, pressure and flow) of regulation and control pumped (conveying) medium Pipeline fittings.According to its function, shut-off valve, check-valves, regulating valve etc. can be divided into.Valve is the control in fluid delivery system Component has the function of cut-off, adjusting, water conservancy diversion, prevents adverse current, pressure stabilizing, shunting or overflow pressure relief etc..

Valve can be used for controlling empty gas and water, steam, various corrosive medias, mud, oil product, liquid metal and radioactivity The flowing of the various types fluid such as medium.Valve is also divided into cast iron valve according to material, cast steel valve, stainless valve (201, 304,316 etc.), chrome-molybdenum steel valve, Chrominm-molybdenum-vanadium steel valve, dual phase steel valve, Plastic valve, nonstandard customized valve etc..

Current major city heat supply engineering long-distance transport pipes super large caliber all-welded ball valve demand increasingly increases, due to state The limitation of interior technology and manufacture level, required valve are at based on import, increase project cost.

Utility model content

The purpose of this utility model is exactly to keep city heat supply super large caliber all-welded ball valve domestic to break external monopolization Change, the utility model product uses temperature: -29-200 DEG C, Applicable media: water, oil, gas, this product are protected using soft seal mode Zero leakage amount is demonstrate,proved, valve body is formed by steel-pipe welding, it can be achieved that unlatching and emergency shutdown on pipeline, and structure is simple, good airproof performance, And driving moment is small, easy to operate, Yi Shixian fast opening and closing, and the service life is up to 30 years.

In order to achieve the above object, the utility model is as follows using technical solution:

A kind of super large caliber welding ball valve, including valve body and extension tube, the two sides of valve body are each provided with an extension tube, valve Body is internally provided with a ball, and extension tube stretches to its internal spherical surface phase with the ball of inside setting from the two sides of valve body respectively Even, ball top, which upwardly extends, is provided with a cylindrical axis beyond body portion, is provided with cover type nut at the top of axis, covers For type nut with axis using being threadedly coupled, the engaging portion at the top of cover type nut and axis is provided with outwardly extending handle, handle Using butterfly, the link position of handle and axis is provided with positioning pin and plays further positioning fixed function, by handle Transformation, becomes butterfly shape, easily facilitates manual grasping, open and close its more conveniently, the outer peripheral surface setting of axis There is a circle bottom bracket axle, the interconnecting piece of axis and ball is provided with axis plain cushion, and the setting of bottom bracket axle is so that entire ball valve makes in transport A protective effect played to axis in process, the setting of axis plain cushion so that the junction leakproofness of axis and ball more It is good, further include bonnet structure, bonnet structure includes crown portion and cap bar part, crown portion and cap bar part using one at Type technology is made, and crown portion section is regular hexagon, has a cylinder shape groove to extend downwardly in cap bar among crown portion Partial interior forms an inner cavity, and the top and bottom of crown portion use fillet design, and the angle [alpha] of fillet is 15 °, cap bar It is provided with a circle rectangular preiection on the outside of partial, the upper end of crown portion to the height h1 of its lower end and the height h2 of entire bonnet Ratio be 1:3, the ratio of the height h4 of raised upper end to cap bar part bottom and the height h3 of protrusion lower end to cap bar bottom For 3:1, the ratio of the height h2 of the outer diameter h5 and entire bonnet of crown portion regular hexagonal section is 2:1.

Further improvement of the utility model is provided with butterfly spring, ball pad seat and ball pad between extension tube and ball with this, The setting of butterfly spring is so that the connection between extension tube and ball avoids hard collision so as to cause entire ball with cushion space The damage of valve, the setting of ball pad seat and ball pad is so that junction better tightness between extension tube and ball.

Further improvement of the utility model, the interconnecting piece between the top and bottom bracket axle of axis are set gradually from top to bottom There are middle shaft retaining ring, axis O-ring and axle sleeve.

Further improvement of the utility model is provided with a floor clip, the thrust between axis and cover type nut The top of handle is arranged in washer.

The tail end outer cover of further improvement of the utility model, handle is set as grip rubber equipped with a rubber sleeve, Convenient for manually grasping, more meet human engineering mechanics.

Further improvement of the utility model, valve body use phosphorus content to be made of 0.2% No. 20 Steel materials, and axis uses 20Cr13 material is made.

The utility model has the beneficial effects that the utility model design reference API 6D-2014 pipeline and pipeline specifications, tentatively Design DN1600, PN25 all-welded ball valve, have the function of it is double be truncated-release (DBB), use temperature: -29-200 DEG C, being applicable in Medium: water, oil, gas, this product guarantee zero leakage amount using soft seal mode, and valve body is formed by steel-pipe welding, after the completion of design Its structural strength and sealing performance are analyzed using Finite Element Method Numerical Simulation (ANSYS), verify the reliability of design.It is adopted when assembly Guarantee that there is unified pretightning force on the gasket of same specification ball valve product with the mode that straight mouth positions, realization reliably designs close Sealing property.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

Fig. 2 is the enlarged diagram of part A in Fig. 1.

Fig. 3 is the enlarged diagram of part B in Fig. 1.

Fig. 4 is the structural schematic diagram of bonnet structure in the utility model.

Fig. 5 is crown portion cross-sectional structure schematic diagram in Fig. 4.

In figure, 1- extension tube, 2- valve body, 3- butterfly spring, 4- ball pad seat, 5- ball pad, 6- ball, 7- axis plain cushion, in 8- Axle sleeve, 9- axis, shaft retaining ring in 10-, 11- axis O-ring, 12- axle sleeve, 13- positioning pin, 14- handle, 15- floor clip, 16- cover type nut, 17- grip rubber, 18- bonnet structure, 1801- crown portion, 1802- cap bar part, 1803- protrusion, The inner cavity 1804-, 1805- groove.

Specific embodiment

In order to deepen the understanding to the utility model, the utility model is done further below in conjunction with drawings and examples Detailed description, the embodiment are only used for explaining the utility model, do not constitute and limit to the protection scope of the utility model.

Embodiment: as shown in Figure 1, Figure 2 and Figure 3, a kind of super large caliber welding ball valve, including valve body 2 and extension tube 1, valve The two sides of body 2 are each provided with an extension tube 1, and valve body 2 is internally provided with a ball 6, and extension tube 1 is respectively from the two sides of valve body 2 It stretches to its internal spherical surface with the ball 6 of internal setting to be connected, 6 top of ball, which upwardly extends, to be provided with a cylinder axis and 9 surpass 2 part of valve body out, the top of axis 9 are provided with cover type nut 16, and cover type nut 16 is used with axis 9 and is threadedly coupled, cap-type spiral shell The engaging portion at mother 16 and 9 top of axis is provided with outwardly extending handle 14, and handle 14 uses butterfly, handle 14 and axis 9 Link position is provided with positioning pin 13 and plays further positioning fixed function；The outer peripheral surface of axis 9 is provided with a circle bottom bracket axle 8, The interconnecting piece of axis 9 and ball 6 is provided with axis plain cushion 7, and the setting of bottom bracket axle 8 is so that entire ball valve is transporting in use process One protective effect played to axis 9, the setting of axis plain cushion 7 so that axis 9 and ball 6 junction better tightness；Prolong Butterfly spring 3, ball pad seat 4 and ball pad 5 are provided with this between long tube 1 and ball 6, the setting of butterfly spring 3 so that extension tube 1 with Connection between ball 6 has cushion space, avoids hard collision so as to cause the damage of entire ball valve, ball pad seat 4 and ball pad 5 Junction better tightness so that between extension tube 1 and ball 6 is set；Interconnecting piece between the top and bottom bracket axle 8 of axis 9 from Under to being above disposed with middle shaft retaining ring 10, axis O-ring 11 and axle sleeve 12；One is provided between axis 9 and cover type nut 16 The top of handle 14 is arranged in a floor clip 15, thrust washer 15；The tail end outer cover of handle 14 is arranged equipped with a rubber It is set to grip rubber 17, is grasped convenient for artificial, more meet human engineering mechanics.

As shown in Figure 4 and Figure 5, bonnet structure 18 includes crown portion 1801 and cap bar part 1802, cap in the present embodiment Top part 1801 is made with cap bar part 1802 of integral molding techniques, and 1801 section of crown portion is regular hexagon, crown There is a cylinder shape groove 1805 to extend downwardly one inner cavity 1804 of formation, cap inside cap bar part 1802 among part 1801 The outside of bar part 1802 is provided with a circle rectangular preiection 1803, and the top and bottom of crown portion 1801 use fillet design, The angle [alpha] of fillet is 15 °, the ratio of the upper end of crown portion 1801 to the height h1 of its lower end and the height h2 of entire bonnet For 1:3, the ratio of the height h3 of the height h4 of raised 1803 upper ends to 1802 bottom of cap bar part and raised 3 lower ends to cap bar bottom Example is 3:1, and the ratio of the height h2 of the outer diameter h5 and entire bonnet of 1801 regular hexagonal section of crown portion is 2:1.

In the present embodiment, valve body uses phosphorus content to be made of 0.2% No. 20 Steel materials, and axis uses 20Cr13 material It is made.

The basic principles and main features and advantage of the utility model have been shown and described above.The technical staff of the industry It should be appreciated that the present utility model is not limited to the above embodiments, the above embodiments and description only describe this The principle of utility model, on the premise of not departing from the spirit and scope of the utility model, the utility model also has various change And improvement, these various changes and improvements fall within the scope of the claimed invention.The utility model requires protection scope It is defined by the appending claims and its equivalent thereof.

Claims (5)

1. a kind of super large caliber welding ball valve, which is characterized in that including valve body and extension tube, the two sides of the valve body are each provided with One extension tube, the valve inner are provided with a ball, and the extension tube stretches in it from the two sides of the valve body respectively Portion is connected with the spherical surface of the ball of inside setting, and the ball top, which upwardly extends, is provided with a cylindrical axis beyond the valve body Part, is provided with cover type nut at the top of the axis, and the cover type nut and the axis are using being threadedly coupled, the cap-type Engaging portion at the top of nut and the axis is provided with outwardly extending handle, and the handle uses butterfly, the handle and institute The link position for stating axis is provided with positioning pin and plays further positioning fixed function, and the outer peripheral surface of the axis is provided with a circle The interconnecting piece of bottom bracket axle, the axis and the ball is provided with axis plain cushion, is arranged between the extension tube and the ball with this There are butterfly spring, ball pad seat and ball pad, further include bonnet structure, the bonnet structure includes crown portion and cap bar part, institute It states crown portion and is made with the cap bar part of integral molding techniques, the crown portion section is regular hexagon, described There is a cylinder shape groove to extend downwardly one inner cavity of formation, the crown portion inside the cap bar part among crown portion The top and bottom divided use fillet design, and the angle [alpha] of the fillet is 15 °, are provided with a circle on the outside of the cap bar part Rectangular preiection, the upper end of the crown portion to the ratio of the height h1 of its lower end and the height h2 of entire bonnet is 1:3, described Raised upper end to cap bar part bottom height h3 to cap bar bottom of height h4 and the raised lower end ratio For 3:1, the ratio of the height h2 of the outer diameter h5 and entire bonnet of the crown portion regular hexagonal section is 2:1.

2. super large caliber welding ball valve according to claim 1, which is characterized in that the top of the axis and the axis Interconnecting piece between set is disposed with middle shaft retaining ring, axis O-ring and axle sleeve from top to bottom.

3. super large caliber welding ball valve according to claim 2, which is characterized in that the axis and the cover type nut it Between be provided with a floor clip, the top of the handle is arranged in the floor clip.

4. super large caliber welding ball valve according to claim 1-3, which is characterized in that outside the tail end of the handle Portion is set with a rubber sleeve and is set as grip rubber.

5. super large caliber welding ball valve according to claim 4, which is characterized in that valve body use phosphorus content for 0.2% 20 Number Steel material is made, and the axis uses 20Cr₁₃Material is made.