CN202140618U - Multi-eccentric threeway semispherical valve - Google Patents

Multi-eccentric threeway semispherical valve Download PDF

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Publication number
CN202140618U
CN202140618U CN201120177962U CN201120177962U CN202140618U CN 202140618 U CN202140618 U CN 202140618U CN 201120177962 U CN201120177962 U CN 201120177962U CN 201120177962 U CN201120177962 U CN 201120177962U CN 202140618 U CN202140618 U CN 202140618U
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CN
China
Prior art keywords
valve
eccentric
port
throw
sphere
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.)
Expired - Fee Related
Application number
CN201120177962U
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Chinese (zh)
Inventor
李志强
任静勇
赵玉田
孟建伟
王贵武
刘丽娟
李利
吴红涛
马新伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henan Quanshun Flow Control Science & Technology Co Ltd
Original Assignee
Henan Quanshun Flow Control Science & Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Henan Quanshun Flow Control Science & Technology Co Ltd filed Critical Henan Quanshun Flow Control Science & Technology Co Ltd
Priority to CN201120177962U priority Critical patent/CN202140618U/en
Application granted granted Critical
Publication of CN202140618U publication Critical patent/CN202140618U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a ball valve, especially a multi-eccentric threeway semispherical valve used for the branch control of a pipeline, which comprises a valve body. The upper part of the valve body is connected with a valve cover. A valve stem is arranged inside the valve body. The lower part of the valve stem is connected with a valve core. The bottom of the valve body is equipped with a half shaft and the half shaft is connected with the valve core. The valve body is equipped with an upper port, a lower port and a lateral port. The upper port, the lower port and the lateral port are communicated with the valve cavity of the valve. An upper valve seat is connected with the interior of the upper port and a lower valve seat is connected with the interior of the lower port. The valve core comprises two eccentric spherical surfaces and the two eccentric spherical surfaces are arranged at an angle of 90 degrees with respect to each other. The multi-eccentric threeway semispherical valve is wide in application range and can be used in various complicated mining conditions, including water, gas (steam, air, natural gas and the like), petroleum refining, oil products, metallurgical slag, slurries, granular media, dust medium, multiphase flow and so on.

Description

The multi-eccentric three-way half ball valve
Technical field
The utility model relates to a kind of ball valve, relates in particular to a kind of multi-eccentric three-way half ball valve that is used for pipe branch control.
Background technique
The tee ball valve that is adopted at present is L shaped or T shape tee ball valve; Above-mentioned two types tee ball valve is split into 90 ° through hole each other on spheroid; Install butterfly spring behind the valve seat additional; Certain elastic force is arranged between valve seat and spheroid, and spheroid leans on the compressive strain of spring to reach seal pressure in the valve opening and closing process, realizes sealing effect.But valve seat is pushed down spheroid all the time tightly, and moment is bigger during valve opening and closing, operates heavy.
The existing common shortcoming and defect part of tee ball valve:
(1) soft sealing structure of valve: its Applicable temperature scope is little, receives the restriction of sealing material, and the operating temperature of sealing pair is smaller or equal to 150 ℃.Use under the situation of new material as: enhancing modified teflon, contraposition polyphenyl etc., the maximum temperature that is suitable for also can only be about 250 ℃.
(2) even the rubber-like hard sealing structure, its sealing is pressed to spheroid by pretightening force with valve seat, ball valve is in opening process; Spheroid is all compressed by valve seat all the time and is in stress, so keying is heavy, moment of rotation is bigger; Energy consumption is also bigger, and working life is also shorter.
(3) the tee ball valve manufacturing of elastic seat, assembling trouble are adjusted time-consuming.Influence valve performance after getting into foul between each counterpart, moreover the easy tired consumptive disease of spring, sealing pair lost efficacy easily, and manufacture cost is also than higher, and its runner is L shaped, and MEDIA FLOW will turn 90 ° and bend when valve body, so flow resistance is bigger, and sealability all is unidirectional.
The model utility content
The purpose of the utility model provides a kind of multi-eccentric three-way half ball valve, and its sealing pair is wear-resistant, and long service life is opened flexibly, and moment of rotation is little.
For solving the problems of the technologies described above, the utility model comprises: valve body, and valve body top connects valve gap, establishes valve rod in the valve body; The bottom of valve rod connects spool, and the bottom of valve body is provided with semiaxis, and semiaxis connects spool, has suitable for reading on the described valve body; End opening and lateral port, suitable for reading, end opening and lateral port all are communicated with valve pocket, the interior upper valve base that connects suitable for reading; Connect lower valve base in the end opening, spool comprises: 2 eccentric spheres are 90 degree between 2 eccentric spheres.
Said valve rod and valve pocket center line are not point-blank.
The spherical radius SR of described 2 eccentric spheres is identical, and the throw of eccentric E of 2 eccentric spheres is identical.
The throw of eccentric of described valve rod and valve pocket center line is identical with the throw of eccentric of eccentric sphere.
The throw of eccentric of described eccentric sphere and the relation of spherical radius are: ; E is the throw of eccentric of eccentric sphere, and SR is the spherical radius of eccentric sphere.
The utility model has the spool of 2 eccentric spheres through employing; It cooperates with upper valve base and lower valve base, has promptly realized duplex position, two way sealed pair, and valve core rotation is free and relaxed; So thoroughly solved conventional ball valve can not break away from valve seat in opening-closing process a difficult problem; It is heavy to have overcome keying, and friction is big, the drawback faster of wearing and tearing.While the utility model compact structure, reasonable, sealing pair adopt cemented carbide wear-resistant, and two way sealed can reach zero leakage; Fire performance is good, has higher Security, and frictional force is little between sealing pair; Long service life is 4 ~ 5 times of general ball valves, is 3 ~ 4 times of metallic seal eccentric half-ball valve.The Applicable temperature scope is wide: the general work temperature is between-60 ℃ ~ 650 ℃, and bearing capacity is big, and pressure-bearing is≤30Mpa.Installation is regardless of direction, and is flexible to operation, and energy-saving and cost-reducing, operational torque is 1/3 ~ 1/5 of an ordinary ball valve.Applicable media is extensive: the industrial and mineral condition that can be applicable to various complicacies such as water, gas (steam, air, rock gas etc.), petroleum refining, oil product, metallurgical slag, slurries, granule medium, dust medium and multiphase flow.After the wearing and tearing, can compensate automatically, have cutting foreign material, fouling, special performances such as scab.
Description of drawings
Fig. 1 is the structural drawing of first kind of mode of execution of the utility model.
Fig. 2 is that the AA of Fig. 1 is to view.
Fig. 3 is the sectional drawing of first kind of mode of execution valve body of the utility model.
Fig. 4 is the sectional drawing of first kind of mode of execution spool of the utility model.
Fig. 5 is that the BB of Fig. 4 is to view.
Fig. 6 is that the C of Fig. 4 is to view.
Embodiment
First kind of mode of execution of the utility model:
Comprise like Fig. 1, Fig. 2 and the utility model shown in Figure 3: valve body 1, valve body top connects valve gap 10, establishes valve rod 5 in the valve body, and the stem lower portion spline connects spool 3, and spool transfers the opening and closing operations of accomplishing valve at the drive underspin of valve rod.The bottom of valve body is provided with semiaxis 2, and semiaxis connects spool 3, and semiaxis is used to support spool, and helps the spool rotation.Have on the described valve body suitable for reading 6, end opening 7 and lateral port 8, suitable for reading, end opening and lateral port all are communicated with valve pocket 9, connect upper valve base 4 in suitable for reading, connect lower valve base 11 in the end opening, suitable for reading 6, end opening 7 and lateral port are respectively applied for and connect different pipelines.Valve rod is used to connect valve driving actuator 13, and driving execution mechanism comprises: the motor or the first run etc.
Like Fig. 4, Fig. 5 and spool shown in Figure 6 is 2 eccentric spheres that connect as one, and the connection angle between 2 eccentric spheres is 90 degree.Said valve rod and valve pocket center line 12 not point-blank, valve pocket center line 12 is meant the central axis between the suitable for reading and end opening of valve body, i.e. runner center line.The spherical radius SR of described 2 eccentric spheres is identical; The throw of eccentric E of 2 two eccentric spheres is identical; Be used to be connected the distance between the center line of attachment hole of valve rod on the center line that the throw of eccentric of eccentric sphere is meant eccentric sphere and the spool, the distance of promptly eccentric sphere misalignment valve rod.The throw of eccentric F of described valve rod and valve pocket center line is identical with the throw of eccentric E of eccentric sphere.The throw of eccentric of described eccentric sphere and the relation of spherical radius are: ; E is the throw of eccentric of two eccentric spheres, and SR is the spherical radius of two eccentric spheres.
Second kind of mode of execution of the utility model:
The utility model comprises: valve body, and valve body top connects valve gap, establishes valve rod in the valve body, and the stem lower portion spline connects spool.The bottom of valve body is provided with semiaxis, and semiaxis connects spool.Have on the described valve body suitable for reading, end opening and lateral port, suitable for reading, end opening and lateral port all are communicated with valve pocket, connect upper valve base in suitable for reading, connect lower valve base in the end opening.
Spool is 2 eccentric spheres, is 90 degree between 2 eccentric spheres.Said valve rod and valve pocket center line are not point-blank.The spherical radius SR of described 2 eccentric spheres is identical, and the throw of eccentric E of 2 eccentric spheres is identical.The throw of eccentric of described valve rod and valve pocket center line is identical with the throw of eccentric of eccentric sphere.The throw of eccentric of described eccentric sphere and the relation of spherical radius are: ; E is the throw of eccentric of eccentric sphere, and SR is the spherical radius of eccentric sphere.
The third mode of execution of the utility model:
The utility model comprises: valve body, and valve body top connects valve gap, establishes valve rod in the valve body, and the stem lower portion spline connects spool.The bottom of valve body is provided with semiaxis, and semiaxis connects spool.Have on the described valve body suitable for reading, end opening and lateral port, suitable for reading, end opening and lateral port all are communicated with valve pocket, connect upper valve base in suitable for reading, connect lower valve base in the end opening.
Spool comprises: 2 eccentric spheres are 90 degree between 2 eccentric spheres.Said valve rod and valve pocket center line are not point-blank.The spherical radius SR of described 2 eccentric spheres is identical, and the throw of eccentric E of 2 eccentric spheres is identical.The throw of eccentric of described valve rod and valve pocket center line is identical with the throw of eccentric of eccentric sphere.The throw of eccentric of described eccentric sphere and the relation of spherical radius are: ; E is the throw of eccentric of eccentric sphere, and SR is the spherical radius of eccentric sphere.
When the utility model was done 90 ° of rotations at spool, an eccentric sphere of spool compressed or breaks away from upper valve base, and another eccentric sphere emaciated face of spool leaves or compresses lower valve base, the overall process of so just accomplished the ball valve unlatching, closing.Spool can compress valve seat or break away from valve seat in 3-5 ° of interval of motion, and in 90 ° of revolution strokes, 85 ° interval being arranged is idle stroke, and valve seat and the contactless state of eccentric sphere, spool dally on semiaxis and significantly reduced friction.When clockwise (90 °) rotation valve rod, forms the distortion wedge by an eccentric sphere on the spool, be pressed on the upper valve base, the realization seal pressure reaches sealability, thereby opens end opening, and closes suitable for reading simultaneously, has realized the UNICOM of end opening and lateral port.When counterclockwise (90 °) rotation valve rod, another the eccentric sphere that is driven the two halves sphere by spline hightails upper valve base, and presses to lower valve base and realize sealability, thereby opens suitable for readingly, and closes end opening simultaneously, has realized suitable for reading and UNICOM lateral port.

Claims (6)

1. a multi-eccentric three-way half ball valve comprises: valve body (1), valve body top connection valve gap (10); Establish valve rod (5) in the valve body, the bottom of valve rod connects spool (3), and the bottom of valve body is provided with semiaxis (2); Semiaxis connects spool, and it is characterized in that: described valve body is provided with (6) suitable for reading, end opening (7) and lateral port (8); Suitable for reading, end opening and lateral port all are communicated with valve pocket (9), the interior upper valve base (4) that connects suitable for reading; Connect lower valve base (11) in the end opening, spool comprises: 2 eccentric spheres are 90 degree between 2 eccentric spheres.
2. multi-eccentric three-way half ball valve according to claim 1 is characterized in that: said valve rod and valve pocket center line (12) are not point-blank.
3. multi-eccentric three-way half ball valve according to claim 1 and 2 is characterized in that: the spherical radius SR of described 2 eccentric spheres is identical, and the throw of eccentric E of 2 eccentric spheres is identical.
4. multi-eccentric three-way half ball valve according to claim 3 is characterized in that: the throw of eccentric F of described valve rod and valve pocket center line is identical with the throw of eccentric E of eccentric sphere.
5. multi-eccentric three-way half ball valve according to claim 3; It is characterized in that: the throw of eccentric of described eccentric sphere and the relation of spherical radius are: ; E is the throw of eccentric of eccentric sphere, and SR is the spherical radius of eccentric sphere.
6. multi-eccentric three-way half ball valve according to claim 4; It is characterized in that: the throw of eccentric of described eccentric sphere and the relation of spherical radius are: ; E is the throw of eccentric of eccentric sphere, and SR is the spherical radius of eccentric sphere.
CN201120177962U 2011-05-31 2011-05-31 Multi-eccentric threeway semispherical valve Expired - Fee Related CN202140618U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201120177962U CN202140618U (en) 2011-05-31 2011-05-31 Multi-eccentric threeway semispherical valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201120177962U CN202140618U (en) 2011-05-31 2011-05-31 Multi-eccentric threeway semispherical valve

Publications (1)

Publication Number Publication Date
CN202140618U true CN202140618U (en) 2012-02-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201120177962U Expired - Fee Related CN202140618U (en) 2011-05-31 2011-05-31 Multi-eccentric threeway semispherical valve

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102808972A (en) * 2011-05-31 2012-12-05 河南泉舜流体控制科技有限公司 Multi-eccentric three-way half ball valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102808972A (en) * 2011-05-31 2012-12-05 河南泉舜流体控制科技有限公司 Multi-eccentric three-way half ball valve

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120208

Termination date: 20140531