CN204628625U - A kind of full-metallic hard seal ball valve - Google Patents

A kind of full-metallic hard seal ball valve Download PDF

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Publication number
CN204628625U
CN204628625U CN201520208457.1U CN201520208457U CN204628625U CN 204628625 U CN204628625 U CN 204628625U CN 201520208457 U CN201520208457 U CN 201520208457U CN 204628625 U CN204628625 U CN 204628625U
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CN
China
Prior art keywords
valve
groove
gap
metallic
full
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Expired - Fee Related
Application number
CN201520208457.1U
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Chinese (zh)
Inventor
陈大愚
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East One Valve Manufacture (nantong) Co Ltd
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East One Valve Manufacture (nantong) Co Ltd
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Filing date
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Priority to CN201520208457.1U priority Critical patent/CN204628625U/en
Application granted granted Critical
Publication of CN204628625U publication Critical patent/CN204628625U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of full-metallic hard seal ball valve, comprise valve body, the spool be arranged in valve body, spool is provided with valve rod, valve rod is arranged with valve gap, fit tightly between valve gap and valve body, spool is fixed in valve body by valve seat, and the in-out end of valve seat is equipped with groove, and this groove is embedded with valve seat metal O type circle; Stem lower portion circumferentially offers groove, and this groove is embedded with metallic valve stem O type circle; Valve gap top offers packing groove along valve rod circumference, is filled with metallic stuffing in packing groove, and is compressed by the Gland being arranged on top; The faying surface of valve gap and valve body is provided with metal O type circle.Ball valve of the present utility model adopts rational sealing configuration at rational position, and all sealing materials adopt metal material, is applicable to high temperature, high pressure, corrosion-resistant, the industry such as to resistance to wear.Meet the requirement not allowing non-metallic material to occur in some system of nuclear chemical industry industry, and its good sealing effect.

Description

A kind of full-metallic hard seal ball valve
Technical field
The utility model relates to a kind of ball valve, is specially the ball valve that band full-metallic seals firmly.
Background technique
At present, hard seal ball valve, as a kind of parts being used for realizing pipe-line system break-make and flow control, obtains applying very widely in many fields such as oil, chemical industry, metallurgy, water power.In known hard seal ball valve technology, the sealing at valve body and valve seat place adopts the connection of rubber o-ring more, the gasket seal at valve body and valve gap position also adopts non-metallic material as sealed material mostly, and filler is also the nonmetallic material such as Expanded graphite or tetrafluoroethylene substantially.The good seal performance of nonmetal sealing material, is easy to sealing, but has not allowed nonmetallic material to occur in some system of nuclear chemical industry industry, metal material therefore must be adopted as sealing material, but its sealability but exists certain defect.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of metal material that adopts as sealing material, and the ball valve of good sealing effect.
The technical solution of the utility model: full-metallic hard seal ball valve described in the utility model, comprises valve body, the spool be arranged in valve body, spool is provided with valve rod, valve rod is arranged with valve gap, fit tightly between valve gap and valve body,
Described spool is fixed in valve body by valve seat, and the in-out end of valve seat is equipped with groove, and this groove is embedded with valve seat metal O type circle;
Described stem lower portion circumferentially offers groove, and this groove is embedded with metallic valve stem O type circle;
Described valve gap top offers packing groove along valve rod circumference, is filled with metallic stuffing in packing groove, and is compressed by the Gland being arranged on top;
The faying surface of described valve gap and valve body is provided with metal O type circle.
Further, be provided with the retaining ring being with retaining ring lock pin between described valve seat and valve body, between retaining ring and valve body, be provided with butterfly spring.
Further, described metallic stuffing upper and lower sides is respectively lined with a Packing seat, and Packing seat is socketed on valve rod.
Further, the cross section of described Gland is in T shape, and Packing seat is close in vertical section lower end, and traversing section two ends are fixed on valve gap by stud attaching nut.
Further, described valve gap top is valve gap body, valve gap body lower part be provided with one stretch into valve body stretch into portion, what this stretched into portion is circumferentially provided with groove, and this groove is built with valve gap metal O type circle; Body top is positioned at valve gap body and stretches into jointing place, portion and has groove, and this groove is built with valve body metal O type circle.
Further, be provided with boss below described stem lower portion groove, above boss, be provided with the thrust pad of metal material.
Further, described packing groove surface and stem surface bright and clean.
Further, above valve gap, be also provided with valve yoke, be bolted on valve gap bottom valve yoke, valve yoke upper surface is also provided with nameplate position.
Further, the handwheel of band handwheel seat pad cover is housed at the top of valve rod, and handwheel is fixed on valve yoke by handwheel lock pin, and the top of valve rod is provided with locking collar bolt, and handwheel is also provided with stop pin.
Ball valve of the present utility model adopts rational sealing configuration at rational position, and all sealing materials adopt metal material, is applicable to high temperature, high pressure, corrosion-resistant, the industry such as to resistance to wear.Meet the requirement not allowing non-metallic material to occur in some system of nuclear chemical industry industry, and its good sealing effect.
Accompanying drawing explanation
Fig. 1 is front cross-sectional structural representation of the present utility model;
Fig. 2 is that structural representation is partly cutd open in side of the present utility model.
In figure: 1-valve body; 2-spool; 3-metallic valve stem O type circle; 4-valve gap metal O type circle; 5-valve body metal O type circle; 6-valve gap; 7-bolt; 8-valve yoke; 9-valve rod; 10-nameplate position; 11-handwheel seat pad cover; 12-handwheel; 13-locking collar bolt; 14-handwheel lock pin; 15-nut; 16-stud; 17-Gland; 18-is with the stud of nut; 19-filler; 20-thrust pad; 21-retaining ring lock pin; 22-belleville spring; 23-valve seat metal O type circle; 24-valve seat; 25-retaining ring; 26-stop pin; 27-Packing seat; 28-boss.
Embodiment
Embodiment of the present utility model: as shown in Figure 1-2, ball full-metallic hard seal ball valve described in the utility model, comprise valve body 1, spool 2, valve rod 9 and valve gap 6, wherein spool 2 is provided with the spherical of valve opening for middle, be arranged in valve body 1 by valve seat 24, and rotatably, along with spool 2 rotates, valve opening can be realized be communicated with the import and export of valve body 1 or disconnect, realize the open and close of valve.Valve gap 6 is set on valve rod 9, and bottom snaps in valve body 1, and top is fixedly connected with valve body 1 by the stud 18 of band nut, fits tightly between valve gap 6 and valve body 1.
Offer groove along in valve rod 9 lower circumference, this groove is embedded with metallic valve stem O type circle 3, and the first realized between valve rod 9 and valve gap 6 seals; Packing groove is offered along valve rod 9 circumference on valve gap 6 top, metallic stuffing 19 is filled with in packing groove, metallic stuffing 19 upper and lower sides is respectively lined with a Packing seat 27, Packing seat 27 is socketed on valve rod 9, and valve rod 9 is also socketed with Gland 17, and the cross section of Gland 17 is in T shape, Packing seat 27 is close in vertical section lower end, thus metallic stuffing 19 is compressed, realize the second sealing between valve rod 9 and valve gap 6, traversing section two ends are fixed on valve gap 6 by stud 16 attaching nut 15.Packing groove surface and valve rod 9 surface will ensure bright and clean, ensure sealing effect further.
Below valve rod 9 lower recess, be provided with boss 28, above boss 28, be provided with the thrust pad 20 of metal material.
Be provided with the retaining ring 25 being with retaining ring lock pin 21 between valve seat 24 and valve body 1, between retaining ring 25 and valve body 1, be provided with butterfly spring 22.The in-out end of valve seat 24 is equipped with groove, and this groove, built with valve seat metal O type circle 23, realizes the sealing between valve seat 24 and valve body 1; Valve gap 6 top is valve gap body, valve gap body lower part be provided with one stretch into valve body 1 stretch into portion, what this stretched into portion is circumferentially provided with groove, and this groove, built with valve gap metal O type circle 4, realizes the sealing between valve gap 6 bottom and valve body 1; Valve body 1 top is positioned at valve gap body and stretches into jointing place, portion and has groove, and this groove, built with valve body metal O type circle 5, realizes the sealing between valve body 1 and valve gap 6 further.
Above valve gap 6, be also provided with valve yoke 8, be fixed on valve gap 6 bottom valve yoke 8 by bolt 7, valve yoke 8 upper surface also can arrange the nameplate position 10 for pasting nameplate.The handwheel 12 of band handwheel seat pad cover 11 is housed at the top of valve rod 9, and handwheel 12 is fixed on valve yoke 8 by handwheel lock pin 14, and the top of valve rod 9 is provided with locking collar bolt 13, is fixed on further on valve rod 9 by handwheel 12.Handwheel 12 is also provided with stop pin 26.
All sealing positions all adopt metal material above, are all-metal sealing structure.

Claims (9)

1. a full-metallic hard seal ball valve, comprise valve body (1), the spool (2) be arranged in valve body (1), spool (2) is provided with valve rod (9), valve rod (9) is arranged with valve gap (6), fit tightly between valve gap (6) and valve body (1), it is characterized in that:
Described spool (2) is fixed in valve body (1) by valve seat (24), and the in-out end of valve seat (24) is equipped with groove, and this groove is embedded with valve seat metal O type circle (23);
Described valve rod (9) lower circumference offers groove, and this groove is embedded with metallic valve stem O type circle (3);
Described valve gap (6) top offers packing groove along valve rod (9) circumference, is filled with metallic stuffing (19) in packing groove, and is compressed by the Gland (17) being arranged on top;
Described valve gap (6) and the faying surface of valve body (1) are provided with metal O type circle.
2. full-metallic hard seal ball valve according to claim 1, it is characterized in that: be provided with the retaining ring (25) being with retaining ring lock pin (21) between described valve seat (24) and valve body (1), between retaining ring (25) and valve body (1), be provided with butterfly spring (22).
3. full-metallic hard seal ball valve according to claim 1, is characterized in that: described metallic stuffing (19) upper and lower sides is respectively lined with a Packing seat (27), and Packing seat (27) is socketed on valve rod (9).
4. full-metallic hard seal ball valve according to claim 3, it is characterized in that: the cross section of described Gland (17) is in T shape, Packing seat (27) is close in vertical section lower end, and traversing section two ends are fixed on valve gap (6) by stud (16) attaching nut (15).
5. full-metallic hard seal ball valve according to claim 1, it is characterized in that: described valve gap (6) top is valve gap body, valve gap body lower part be provided with one stretch into valve body (1) stretch into portion, what this stretched into portion is circumferentially provided with groove, and this groove is built with valve gap metal O type circle (4); Valve body (1) top is positioned at valve gap body and stretches into jointing place, portion and has groove, and this groove is built with valve body metal O type circle (5).
6. full-metallic hard seal ball valve according to claim 1, it is characterized in that: be provided with boss (28) below described valve rod (9) lower recess, boss (28) top is provided with the thrust pad (20) of metal material.
7. full-metallic hard seal ball valve according to claim 1, is characterized in that: described packing groove surface and valve rod (9) any surface finish.
8. full-metallic hard seal ball valve according to claim 1, it is characterized in that: be also provided with valve yoke (8) in valve gap (6) top, valve yoke (8) bottom is fixed on valve gap (6) by bolt (7), and valve yoke (8) upper surface is also provided with nameplate position (10).
9. full-metallic hard seal ball valve according to claim 8, it is characterized in that: the handwheel (12) that band handwheel seat pad cover (11) is housed at the top of valve rod (9), handwheel (12) is fixed on valve yoke (8) by handwheel lock pin (14), the top of valve rod (9) is provided with locking collar bolt (13), and handwheel (12) is also provided with stop pin (26).
CN201520208457.1U 2015-04-08 2015-04-08 A kind of full-metallic hard seal ball valve Expired - Fee Related CN204628625U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520208457.1U CN204628625U (en) 2015-04-08 2015-04-08 A kind of full-metallic hard seal ball valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520208457.1U CN204628625U (en) 2015-04-08 2015-04-08 A kind of full-metallic hard seal ball valve

Publications (1)

Publication Number Publication Date
CN204628625U true CN204628625U (en) 2015-09-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520208457.1U Expired - Fee Related CN204628625U (en) 2015-04-08 2015-04-08 A kind of full-metallic hard seal ball valve

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106402476A (en) * 2016-11-14 2017-02-15 东阀门制造(南通)有限公司 Valve rod metal C-shaped ring sealing structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106402476A (en) * 2016-11-14 2017-02-15 东阀门制造(南通)有限公司 Valve rod metal C-shaped ring sealing structure

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

Granted publication date: 20150909

Termination date: 20200408