CN103982675A - All-welded hard-sealing ball valve - Google Patents
All-welded hard-sealing ball valve Download PDFInfo
- Publication number
- CN103982675A CN103982675A CN201410184022.8A CN201410184022A CN103982675A CN 103982675 A CN103982675 A CN 103982675A CN 201410184022 A CN201410184022 A CN 201410184022A CN 103982675 A CN103982675 A CN 103982675A
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- China
- Prior art keywords
- valve
- spheroid
- ring
- metal seat
- valve rod
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/10—Welded housings
- F16K27/107—Welded housings for taps or cocks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
- F16K5/0694—Spindle sealings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
- F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
- F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
- F16K5/201—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the housing or parts of the housing mechanically pressing the seal against the plug
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses an all-welded hard-sealing ball valve, which comprises a middle valve body, a valve rod and a ball body, wherein the valve rod and the ball body are in transmission connection, a stuffing sleeve is arranged around the valve rod, two upper covers are respectively arranged at both sides of a passage opening of the ball body, two metal valve seats are respectively arranged at the inner parts of the two upper covers close to one end of the ball body, the metal valve seat is a graphite-reinforced special sealing ring, a curved surface which is matched with the ball body is arranged at the front end of the front segment part of the sealing ring, a cylindrical ring is arranged at the rear segment part of the sealing ring, the outer-circle diameter of the front segment part is greater than that of the rear segment part, and the front segment part and the rear segment part are transitionally connected through a conical surface. Since wear-resistant, high-temperature-resistant and corrosion-resistant hard-sealing parts and unique assembling and fixing modes are adopted by the invention, the all-welded hard-sealed ball valve has the advantages of long service life, uniqueness in China and easiness in installation, operation and control and cannot be counterfeited or imitated, and excessively careful maintenance is not needed, so that the maintenance cost is greatly lowered.
Description
Technical field
The present invention relates to the valve technology field for industry, engineering system, be specifically related to a kind of full welding hard seal ball valve.
Background technique
The valve using in industry under prior art and engineering system only has the time of a few years working life, mainly that the reasons such as soft seal non-refractory due to valve inner, not wear-resisting, poor corrosion resistance cause, and the valve of prior art needs often to safeguard, adjusts and be lubricated, increases operation expense.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of full welding hard seal ball valve.
To achieve these goals, the technical solution adopted for the present invention to solve the technical problems is: a kind of full welding hard seal ball valve, comprise body in valve, valve rod, spheroid, valve rod and spheroid are in transmission connection, valve rod is provided with filler cover around, the both sides, passway that are positioned at spheroid are provided with upper cover, the two upper cover inside near spheroid one end are provided with metal seat valve, described metal seat valve is that a graphite strengthens extraordinary seal ring, the front end of the leading portion portion of sealing ring is provided with the curved surface matching with spheroid, its back segment portion is a cylindrical ring, the outside diameter of leading portion portion is greater than the outside diameter of back segment portion, and by conical surface transition, be connected between leading portion portion and back segment portion, on the back segment portion cylindrical of described metal seat valve, be socketed with successively packing ring, butterfly spring, the second packing ring, on the leading portion portion cylindrical of described metal seat valve, be provided with seal ring locating slot and 0 RunddichtringO, on the upper cover inwall of described metal seat valve rear end, be provided with ring-shaped step, the second packing ring is axially fixed on ring-shaped step.
Furtherly, in described valve, body is the capsule shape structure that two ends are provided with annular opening, and described two upper covers are plugged in the annular opening of capsule shape structure and are crimped on spheroid with one end of metal seat valve, two upper covers again with valve in body integrally welded.
Furtherly, described filler cover is one to be enclosed within valve rod cylindrical sleeve around, in cylindrical sleeve and valve, body is integrally welded, is filled with graphite packing, and is provided with gland nut in the filler cavity between valve rod outer wall and cylindrical sleeve inwall above filler cavity inside.
Furtherly, described upper cover is provided with adpting flange away from one end of spheroid, and on the end face of adpting flange, is provided with the connection cooperation conical surface.
A kind of full welding hard seal ball valve, comprise body in valve, valve rod, spheroid, valve rod and spheroid are in transmission connection, valve rod is provided with filler cover around, the both sides, passway that are positioned at spheroid are provided with upper cover, the two upper cover inside near spheroid one end are provided with metal seat valve, described metal seat valve is that a graphite strengthens extraordinary seal ring, the front end of the leading portion portion of sealing ring is provided with the curved surface matching with spheroid, its back segment portion is a cylindrical ring, the outside diameter of leading portion portion is greater than the outside diameter of back segment portion, and by conical surface transition, be connected between leading portion portion and back segment portion, on the back segment portion cylindrical of described metal seat valve, be socketed with successively graphite-seal ring, packing ring, butterfly spring, the second packing ring, on the upper cover inwall of described metal seat valve rear end, be provided with ring-shaped step, the second packing ring is axially fixed on ring-shaped step.
Furtherly, in described valve body, body is the capsule shape structure that two ends are provided with annular opening, and described two upper covers are plugged in the annular opening of capsule shape structure and are crimped on spheroid with one end of metal seat valve, two upper covers again with valve in body integrally welded.
Furtherly, described filler cover is one to be enclosed within valve rod cylindrical sleeve around, in cylindrical sleeve and valve, body is integrally welded, is filled with graphite packing, and is provided with gland nut in the filler cavity between valve rod outer wall and cylindrical sleeve inwall above filler cavity inside.
Furtherly, described upper cover is provided with adpting flange away from one end of spheroid, and on the end face of adpting flange, is provided with the connection cooperation conical surface.
A kind of full welding hard seal ball valve, comprise body in valve, valve rod, spheroid, valve rod and spheroid are in transmission connection, valve rod is provided with filler cover around, the both sides, passway that are positioned at spheroid are provided with upper cover, the two upper cover inside near spheroid one end are provided with metal seat valve, described metal seat valve is that a graphite strengthens extraordinary seal ring, the front end of the leading portion portion of sealing ring is provided with the curved surface matching with spheroid, its back segment portion is a cylindrical ring, the outside diameter of leading portion portion is greater than the outside diameter of back segment portion, and by conical surface transition, be connected between leading portion portion and back segment portion, on the back segment portion cylindrical of described metal seat valve, be socketed with successively graphite-seal ring, packing ring, butterfly spring, be positioned at metal seat valve rear end and be provided with adjusting nut, described adjusting nut end is crimped on butterfly spring, described adjusting nut and upper cover inwall are spirally connected.
Furtherly, in described valve body, body is the capsule shape structure that two ends are provided with annular opening, and described two upper covers are plugged in the annular opening of capsule shape structure and are crimped on spheroid with one end of metal seat valve, two upper covers again with valve in body integrally welded.
Furtherly, described filler cover is one to be enclosed within valve rod cylindrical sleeve around, in cylindrical sleeve and valve, body is integrally welded, is filled with graphite packing, and is provided with gland nut in the filler cavity between valve rod outer wall and cylindrical sleeve inwall above filler cavity inside.
Furtherly, described upper cover is provided with adpting flange away from one end of spheroid, and on the end face of adpting flange, is provided with the connection cooperation conical surface.
A kind of full welding hard seal ball valve, comprise body in valve, valve rod, spheroid, valve rod and spheroid are in transmission connection, valve rod is provided with filler cover around, the both sides, passway that are positioned at spheroid are provided with upper cover, the two upper cover inside near spheroid one end are provided with metal seat valve, described metal seat valve is that a graphite strengthens extraordinary seal ring, the front end of the leading portion portion of sealing ring is provided with the curved surface matching with spheroid, its back segment portion is a cylindrical ring, the outside diameter of leading portion portion is greater than the outside diameter of back segment portion, and by conical surface transition, be connected between leading portion portion and back segment portion, on the back segment portion cylindrical of described metal seat valve, be socketed with successively graphite-seal ring and packing ring, be positioned at metal seat valve rearward end and be provided with adjusting nut, on the anchor ring contacting with packing ring on described adjusting nut, be provided with some spring mounting holes and be installed on the spring in hole, described adjusting nut and upper cover inwall are spirally connected.
Further, in described valve, body is the capsule shape structure that two ends are provided with annular opening, and described two upper covers are plugged in the annular opening of capsule shape structure and are crimped on spheroid with one end of metal seat valve, two upper covers again with valve in body integrally welded.
Furtherly, described filler cover is one to be enclosed within valve rod cylindrical sleeve around, in cylindrical sleeve and valve, body is integrally welded, is filled with graphite packing, and is provided with gland nut in the filler cavity between valve rod outer wall and cylindrical sleeve inwall above filler cavity inside.
Furtherly, described upper cover is provided with adpting flange away from one end of spheroid, and on the end face of adpting flange, is provided with the connection cooperation conical surface.
Beneficial effect of the present invention: the present invention adopts wear-resisting, high temperature resistant, corrosion resistant hard Sealing, and unique mode that is mounted with, long service life, domestic unique, can not forge, imitate, and be easy to install, control, do not need too meticulous maintenance, greatly reduce maintenance cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the present invention program 1 structural representation;
Fig. 3 is the present invention program 2 structural representation;
Fig. 4 is the present invention program 3 structural representation;
Fig. 5 is the present invention program 4 structural representation.
Wherein, body in 1-valve; 2-valve rod; 3-spheroid; 4-filler cover; 5-upper cover; 6-metal seat valve; 7-graphite-seal ring; 8-packing ring; 9-adjusting nut; 10-spring; 11-butterfly spring; 12-the second packing ring; 13-graphite packing; 14-gland nut; 15-0 RunddichtringO; 16-adpting flange.
Embodiment
A kind of full welding hard seal ball valve as shown in Fig. 1 mono-Fig. 5, comprise body 1 in valve, valve rod 2, spheroid 3, valve rod 2 is in transmission connection with spheroid 3, valve rod 2 is provided with filler cover 4 around, the both sides, passway that are positioned at spheroid 3 are provided with upper cover 5, two upper cover 5 inside near spheroid 3 one end are provided with metal seat valve 6, described metal seat valve 6 is that a graphite strengthens extraordinary seal ring, the front end of the leading portion portion of sealing ring is provided with the curved surface matching with spheroid 3, its back segment portion is a cylindrical ring, the outside diameter of leading portion portion is greater than the outside diameter of back segment portion, and by conical surface transition, be connected between leading portion portion and back segment portion, on the back segment portion cylindrical of described metal seat valve 6, be socketed with successively packing ring 8, butterfly spring 11, the second packing ring 12, on the leading portion portion cylindrical of described metal seat valve 6, be provided with seal ring locating slot and 0 RunddichtringO 15, on upper cover 5 inwalls of described metal seat valve 6 rear ends, be provided with ring-shaped step, the second packing ring 12 is axially fixed on ring-shaped step, in described valve, body 1 is provided with the capsule shape structure of annular opening for two ends, described two upper covers 5 are plugged in the annular opening of capsule shape structure and are crimped on spheroid 3 with one end of metal seat valve 6, two upper covers 5 again with valve in body 1 integrally welded, described filler cover 4 is one to be enclosed within valve rod 2 cylindrical sleeve around, in cylindrical sleeve and valve, body 1 is integrally welded, in filler cavity between valve rod 2 outer walls and cylindrical sleeve inwall, be filled with graphite packing 13, and be provided with gland nut 14 above filler cavity inside, described upper cover 5 is provided with adpting flange 16 away from one end of spheroid 3, and on the end face of adpting flange 16, is provided with the connection cooperation conical surface.
A kind of full welding hard seal ball valve, comprise body 1 in valve, valve rod 2, spheroid 3, valve rod 2 is in transmission connection with spheroid 3, valve rod 2 is provided with filler cover 4 around, the both sides, passway that are positioned at spheroid 3 are provided with upper cover 5, two upper cover 5 inside near spheroid 3 one end are provided with metal seat valve 6, described metal seat valve 6 is that a graphite strengthens extraordinary seal ring, the front end of the leading portion portion of sealing ring is provided with the curved surface matching with spheroid 3, its back segment portion is a cylindrical ring, the outside diameter of leading portion portion is greater than the outside diameter of back segment portion, and by conical surface transition, be connected between leading portion portion and back segment portion, on the back segment portion cylindrical of described metal seat valve 6, be socketed with successively graphite-seal ring 7, packing ring 8, butterfly spring 11, the second packing ring 12, on upper cover 5 inwalls of described metal seat valve 6 rear ends, be provided with ring-shaped step, the second packing ring 12 is axially fixed on ring-shaped step, in described valve, body 1 is provided with the capsule shape structure of annular opening for two ends, described two upper covers 5 are plugged in the annular opening of capsule shape structure and are crimped on spheroid 3 with one end of metal seat valve 6, two upper covers 5 again with valve in body 1 integrally welded, described filler cover 4 is one to be enclosed within valve rod 2 cylindrical sleeve around, in cylindrical sleeve and valve, body 1 is integrally welded, in filler cavity between valve rod 2 outer walls and cylindrical sleeve inwall, be filled with graphite packing 13, and be provided with gland nut 14 above filler cavity inside, described upper cover 5 is provided with adpting flange 16 away from one end of spheroid 3, and on the end face of adpting flange 16, is provided with the connection cooperation conical surface.
A kind of full welding hard seal ball valve, comprise body 1 in valve, valve rod 2, spheroid 3, valve rod 2 is in transmission connection with spheroid 3, valve rod 2 is provided with filler cover 4 around, the both sides, passway that are positioned at spheroid 3 are provided with upper cover 5, two upper cover 5 inside near spheroid 3 one end are provided with metal seat valve 6, described metal seat valve 6 is that a graphite strengthens extraordinary seal ring, the front end of the leading portion portion of sealing ring is provided with the curved surface matching with spheroid 3, its back segment portion is a cylindrical ring, the outside diameter of leading portion portion is greater than the outside diameter of back segment portion, and by conical surface transition, be connected between leading portion portion and back segment portion, on the back segment portion cylindrical of described metal seat valve 6, be socketed with successively graphite-seal ring 7, packing ring 8, butterfly spring 11, be positioned at metal seat valve 6 rear ends and be provided with adjusting nut 9, described adjusting nut 9 ends are crimped on butterfly spring 11, described adjusting nut 9 is spirally connected with upper cover 5 inwalls, in described valve, body 1 is provided with the capsule shape structure of annular opening for two ends, described two upper covers 5 are plugged in the annular opening of capsule shape structure and are crimped on spheroid 3 with one end of metal seat valve 6, two upper covers 5 again with valve in body 1 integrally welded, described filler cover 4 is one to be enclosed within valve rod 2 cylindrical sleeve around, in cylindrical sleeve and valve, body 1 is integrally welded, in filler cavity between valve rod 2 outer walls and cylindrical sleeve inwall, be filled with graphite packing 13, and be provided with gland nut 14 above filler cavity inside, described upper cover 5 is provided with adpting flange 16 away from one end of spheroid 3, and on the end face of adpting flange 16, is provided with the connection cooperation conical surface.
A kind of full welding hard seal ball valve, comprise body 1 in valve, valve rod 2, spheroid 3, valve rod 2 is in transmission connection with spheroid 3, valve rod 2 is provided with filler cover 4 around, the both sides, passway that are positioned at spheroid 3 are provided with upper cover 5, two upper cover 5 inside near spheroid 3 one end are provided with metal seat valve 6, described metal seat valve 6 is that a graphite strengthens extraordinary seal ring, the front end of the leading portion portion of sealing ring is provided with the curved surface matching with spheroid 3, its back segment portion is a cylindrical ring, the outside diameter of leading portion portion is greater than the outside diameter of back segment portion, and by conical surface transition, be connected between leading portion portion and back segment portion, on the back segment portion cylindrical of described metal seat valve 6, be socketed with successively graphite-seal ring 7 and packing ring 8, be positioned at metal seat valve 6 rearward end and be provided with adjusting nut 9, on the anchor ring contacting with packing ring 8 on described adjusting nut 9, be provided with some spring mounting holes and be installed on the spring 10 in hole, described adjusting nut 9 is spirally connected with upper cover 5 inwalls, in described valve, body 1 is provided with the capsule shape structure of annular opening for two ends, described two upper covers 5 are plugged in the annular opening of capsule shape structure and are crimped on spheroid 3 with one end of metal seat valve 6, two upper covers 5 again with valve in body 1 integrally welded, described filler cover 4 is one to be enclosed within valve rod 2 cylindrical sleeve around, in cylindrical sleeve and valve, body 1 is integrally welded, in filler cavity between valve rod 2 outer walls and cylindrical sleeve inwall, be filled with graphite packing 13, and be provided with gland nut 14 above filler cavity inside, described upper cover 5 is provided with adpting flange 16 away from one end of spheroid 3, and on the end face of adpting flange 16, is provided with the connection cooperation conical surface.
The metal seat valve 6 of this all-welded ball valve strengthens extraordinary seal ring by graphite and elastic component forms, adaptable to the variation of pressure and temperature, within the scope of mark pressure and temperature, can not produce any leakage; The course of working of spheroid 3 has advanced COMPUTER DETECTION instrument to follow the tracks of detection, so the machining accuracy of spheroid is high; Because 1 material of body in valve is identical with upper cover 5 materials, after integrally welded, there will not be stress to concentrate, can be because of earthquake and vehicle do not produce distortion during through ground yet, make upper cover 5 better ageing-resistant, compare with other products of similar industry, this all-welded ball valve volume is little, aesthetic in appearance, guaranteeing under valve normal operation, long service life, domestic unique, can not forge, imitate.
Claims (10)
1. one kind is welded hard seal ball valve entirely, comprise body in valve (1), valve rod (2), spheroid (3), valve rod (2) is in transmission connection with spheroid (3), valve rod (2) is provided with filler cover (4) around, it is characterized in that, the both sides, passway that are positioned at spheroid (3) are provided with upper cover (5), two upper covers (5) inside near spheroid (3) one end is provided with metal seat valve (6), described metal seat valve (6) is that a graphite strengthens extraordinary seal ring, the front end of the leading portion portion of sealing ring is provided with the curved surface matching with spheroid (3), its back segment portion is a cylindrical ring, the outside diameter of leading portion portion is greater than the outside diameter of back segment portion, and by conical surface transition, be connected between leading portion portion and back segment portion, on the back segment portion cylindrical of described metal seat valve (6), be socketed with successively packing ring (8), butterfly spring (11), the second packing ring (12), on the leading portion portion cylindrical of described metal seat valve (6), be provided with seal ring locating slot and 0 RunddichtringO (15), on upper cover (5) inwall of described metal seat valve (6) rear end, be provided with ring-shaped step, the second packing ring (12) is axially fixed on ring-shaped step.
2. a kind of full welding hard seal ball valve according to claim 1, it is characterized in that, body in described valve (1) is provided with the capsule shape structure of annular opening for two ends, described two upper covers (5) are plugged in the annular opening of capsule shape structure and are crimped on spheroid (3) with one end of metal seat valve (6), two upper covers (5) again with valve in body (1) integrally welded, described filler cover (4) is one to be enclosed within valve rod (2) cylindrical sleeve around, body in cylindrical sleeve and valve (1) is integrally welded, the filler cavity being positioned between valve rod (2) outer wall and cylindrical sleeve inwall is filled with graphite packing (13), and above filler cavity inside, be provided with gland nut (14).
3. a kind of full welding hard seal ball valve according to claim 2, it is characterized in that, described upper cover (5) is provided with adpting flange (16) away from one end of spheroid (3), and on the end face of adpting flange (16), is provided with the connection cooperation conical surface.
4. a kind of full welding hard seal ball valve according to claim 3, comprise body in valve (1), valve rod (2), spheroid (3), valve rod (2) is in transmission connection with spheroid (3), valve rod (2) is provided with filler cover (4) around, it is characterized in that, the both sides, passway that are positioned at spheroid (3) are provided with upper cover (5), two upper covers (5) inside near spheroid (3) one end is provided with metal seat valve (6), described metal seat valve (6) is that a graphite strengthens extraordinary seal ring, the front end of the leading portion portion of sealing ring is provided with the curved surface matching with spheroid (3), its back segment portion is a cylindrical ring, the outside diameter of leading portion portion is greater than the outside diameter of back segment portion, and by conical surface transition, be connected between leading portion portion and back segment portion, on the back segment portion cylindrical of described metal seat valve (6), be socketed with successively graphite-seal ring (7), packing ring (8), butterfly spring (11), the second packing ring (12), on upper cover (5) inwall of described metal seat valve (6) rear end, be provided with ring-shaped step, the second packing ring (12) is axially fixed on ring-shaped step.
5. a kind of full welding hard seal ball valve according to claim 4, it is characterized in that, body in described valve body (1) is provided with the capsule shape structure of annular opening for two ends, described two upper covers (5) are plugged in the annular opening of capsule shape structure and are crimped on spheroid (3) with one end of metal seat valve (6), two upper covers (5) again with valve in body (1) integrally welded, described filler cover (4) is one to be enclosed within valve rod (2) cylindrical sleeve around, body in cylindrical sleeve and valve (1) is integrally welded, the filler cavity being positioned between valve rod (2) outer wall and cylindrical sleeve inwall is filled with graphite packing (13), and above filler cavity inside, be provided with gland nut (14).
6. a kind of full welding hard seal ball valve according to claim 5, it is characterized in that, described upper cover (5) is provided with adpting flange (16) away from one end of spheroid (3), and on the end face of adpting flange (16), is provided with the connection cooperation conical surface.
7. one kind is welded hard seal ball valve entirely, comprise body in valve (1), valve rod (2), spheroid (3), valve rod (2) is in transmission connection with spheroid (3), valve rod (2) is provided with filler cover (4) around, it is characterized in that, the both sides, passway that are positioned at spheroid (3) are provided with upper cover (5), two upper covers (5) inside near spheroid (3) one end is provided with metal seat valve (6), described metal seat valve (6) is that a graphite strengthens extraordinary seal ring, the front end of the leading portion portion of sealing ring is provided with the curved surface matching with spheroid (3), its back segment portion is a cylindrical ring, the outside diameter of leading portion portion is greater than the outside diameter of back segment portion, and by conical surface transition, be connected between leading portion portion and back segment portion, on the back segment portion cylindrical of described metal seat valve (6), be socketed with successively graphite-seal ring (7), packing ring (8), butterfly spring (11), be positioned at metal seat valve (6) rear end and be provided with adjusting nut (9), described adjusting nut (9) end is crimped on butterfly spring (11), described adjusting nut (9) is spirally connected with upper cover (5) inwall.
8. a kind of full welding hard seal ball valve according to claim 7, it is characterized in that, body in described valve body (1) is provided with the capsule shape structure of annular opening for two ends, described two upper covers (5) are plugged in the annular opening of capsule shape structure and are crimped on spheroid (3) with one end of metal seat valve (6), two upper covers (5) again with valve in body (1) integrally welded, described filler cover (4) is one to be enclosed within valve rod (2) cylindrical sleeve around, body in cylindrical sleeve and valve (1) is integrally welded, the filler cavity being positioned between valve rod (2) outer wall and cylindrical sleeve inwall is filled with graphite packing (13), and above filler cavity inside, be provided with gland nut (14), described upper cover (5) is provided with adpting flange (16) away from one end of spheroid (3), and on the end face of adpting flange (16), be provided with to connect and coordinate the conical surface.
9. a kind of full welding hard seal ball valve according to claim 8, comprise body in valve (1), valve rod (2), spheroid (3), valve rod (2) is in transmission connection with spheroid (3), valve rod (2) is provided with filler cover (4) around, it is characterized in that, the both sides, passway that are positioned at spheroid (3) are provided with upper cover (5), two upper covers (5) inside near spheroid (3) one end is provided with metal seat valve (6), described metal seat valve (6) is that a graphite strengthens extraordinary seal ring, the front end of the leading portion portion of sealing ring is provided with the curved surface matching with spheroid (3), its back segment portion is a cylindrical ring, the outside diameter of leading portion portion is greater than the outside diameter of back segment portion, and by conical surface transition, be connected between leading portion portion and back segment portion, on the back segment portion cylindrical of described metal seat valve (6), be socketed with successively graphite-seal ring (7) and packing ring (8), be positioned at metal seat valve (6) rearward end and be provided with adjusting nut (9), on the upper anchor ring contacting with packing ring (8) of described adjusting nut (9), be provided with some spring mounting holes and be installed on the spring (10) in hole, described adjusting nut (9) is spirally connected with upper cover (5) inwall.
10. a kind of full welding hard seal ball valve according to claim 9, it is characterized in that, body in described valve (1) is provided with the capsule shape structure of annular opening for two ends, described two upper covers (5) are plugged in the annular opening of capsule shape structure and are crimped on spheroid (3) with one end of metal seat valve (6), two upper covers (5) again with valve in body (1) integrally welded, described filler cover (4) is one to be enclosed within valve rod (2) cylindrical sleeve around, body in cylindrical sleeve and valve (1) is integrally welded, the filler cavity being positioned between valve rod (2) outer wall and cylindrical sleeve inwall is filled with graphite packing (13), and above filler cavity inside, be provided with gland nut (14), described upper cover (5) is provided with adpting flange (16) away from one end of spheroid (3), and on the end face of adpting flange (16), be provided with to connect and coordinate the conical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410184022.8A CN103982675A (en) | 2014-05-04 | 2014-05-04 | All-welded hard-sealing ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410184022.8A CN103982675A (en) | 2014-05-04 | 2014-05-04 | All-welded hard-sealing ball valve |
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| Publication Number | Publication Date |
|---|---|
| CN103982675A true CN103982675A (en) | 2014-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410184022.8A Pending CN103982675A (en) | 2014-05-04 | 2014-05-04 | All-welded hard-sealing ball valve |
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| CN (1) | CN103982675A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913079A (en) * | 2015-06-12 | 2015-09-16 | 张辛悦 | Expansion ball valve with sealing rings |
| CN111090263A (en) * | 2018-10-23 | 2020-05-01 | 杨宇 | Customized intelligent production line control system and control method |
-
2014
- 2014-05-04 CN CN201410184022.8A patent/CN103982675A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913079A (en) * | 2015-06-12 | 2015-09-16 | 张辛悦 | Expansion ball valve with sealing rings |
| CN111090263A (en) * | 2018-10-23 | 2020-05-01 | 杨宇 | Customized intelligent production line control system and control method |
| CN111090263B (en) * | 2018-10-23 | 2023-11-28 | 杨宇 | Customized intelligent production line control system and control method |
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Application publication date: 20140813 |