CN108953750A - It can the online buried ball valve of welding entirely and its assemble method with pressure for replacing valve rod sealing assembly - Google Patents
It can the online buried ball valve of welding entirely and its assemble method with pressure for replacing valve rod sealing assembly Download PDFInfo
- Publication number
- CN108953750A CN108953750A CN201810752024.0A CN201810752024A CN108953750A CN 108953750 A CN108953750 A CN 108953750A CN 201810752024 A CN201810752024 A CN 201810752024A CN 108953750 A CN108953750 A CN 108953750A
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- Prior art keywords
- valve
- ring
- valve rod
- fixing axle
- online
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- 238000007789 sealing Methods 0.000 title claims abstract description 42
- 238000003466 welding Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000000945 filler Substances 0.000 claims abstract description 18
- 238000009434 installation Methods 0.000 claims abstract description 17
- 238000012360 testing method Methods 0.000 claims abstract description 11
- 230000004927 fusion Effects 0.000 claims abstract description 4
- 230000002265 prevention Effects 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 4
- 238000011009 performance qualification Methods 0.000 claims description 3
- 238000011056 performance test Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- 238000012797 qualification Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Classifications
-
- 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
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
- Details Of Valves (AREA)
- Valve Housings (AREA)
Abstract
The invention discloses one kind can the online buried ball valve of welding entirely and its assemble method with pressure for replacing valve rod sealing assembly.Including valve body structure, sphere fixed structure, extension bar connection structure, operating system.Suitable for the transport line that stability requirement is high and needs to repair online.Lower shaft sleeve, then Upper shaft sleeve and valve body are finished using complete penetraction and fusion in welding mode is integrally welded by sphere, lower fixing axle, upper fixing axle, full welder's sequence is completed after the component assemblies such as divided ring I and lower cover are good can realize testing valve performance, subsequent installation welding is carried out after qualification, the test and adjustment of finished product in a pre-installation may be implemented in the buried ball valve that welds entirely of online replacement valve rod sealing assembly with pressure, the leakage point of the buried part of upper valve rod is avoided simultaneously, realize that buried valve replaces the function of filler online, buried valve product qualified rate is welded in raising entirely, reduce the maintenance cost of valve, divided ring and sealing shroud have been added above operating stick lengthening, improve the safety of valve, improve economic benefit.
Description
Technical field
The present invention relates to it is a kind of can online replacement valve rod sealing assembly with pressure the buried ball valve of welding entirely and its assemble method,
Especially for the fluid transport pipeline that stability requirement is high and can repair online.
Background technique
Welding buried ball valve entirely is common a kind of valve in industrial transport pipeline, and stability high service life is long, but
The existing installation accuracy height for welding buried ball valve entirely and needing, the installation of entire valve need primary completion, after installation is complete
It can just be tested for the property, installation scrappage is high, leads to the cost increase for welding buried ball valve entirely, and profit margin decline is also given
Mounting technique personnel bring great inconvenience.In addition it welds entirely and passes through flanged joint between the extension bar and valve rod of buried ball valve,
So that technical staff has to, the addition filler below flange prevents the leakage of conveying medium, and the valve is in flange in actual work
Following part is located underground to be covered by soil, it is difficult to the online replacement for realizing filler, to the operation band of entire pipeline
It is greatly inconvenient to come.
Summary of the invention
The purpose of the present invention is overcome the deficiencies of the prior art and provide it is a kind of can online replacement valve rod sealing assembly with pressure
Buried ball valve and its assembling and application method are welded entirely.
The present invention provides one kind can the welding entirely buried ball valve with pressure that replace valve rod sealing assembly, including valve body knot online
Structure, sphere fixed structure, extension bar connection structure and operating system；Valve body structure include center valve body, left valve barrel, right valve barrel,
Sphere, lower cover, extension pipe, upper cover, fire prevention gasket, exhaust-valve I and exhaust-valve II；Sphere fixed structure includes Lower shaft sleeve, upper axis
Set, lower fixing axle, upper fixing axle, divided ring I, divided ring II, O-ring I and stop-leak compound；Extension bar connection structure include valve rod,
Key set, Nonlubricated bearing, valve rod non-return hold circle, lengthen operating stick, key and O-ring II；
The connection relationship of each component is as follows: inside center valve body, Lower shaft sleeve is respectively welded at sphere installation with Upper shaft sleeve
The upper and lower ends of center valve body, lower fixing axle and upper fixing axle are separately mounted to the upper and lower of sphere, and lower fixing axle passes through split
Ring I is fixed, and upper fixing axle is fixed by divided ring II；O-ring I is fixed in lower fixing axle, between Upper shaft sleeve and upper fixing axle
Added with stop-leak compound, left valve barrel and right valve barrel are welded with center valve body both sides respectively,
Valve rod passes through key set, thread seal set, Nonlubricated bearing I, valve rod non-return circle and is connected to sphere, valve rod and screw thread
Added with an O-ring between sealing shroud, operating stick and valve rod are lengthened by 4 uniformly distributed key connections, pipe sleeve is lengthened and grasps in lengthening
Make to weld outside bar with Upper shaft sleeve, extension pipe is equipped with exhaust-valve I and exhaust-valve II, and lower cover is welded on center valve body, upper cover
It is fixed by screws in above extension pipe, equipped with fire prevention gasket between upper cover and extension pipe, operating system is fixed on lengthening behaviour
Make above bar.
Preferably, the operating system include handle set, handle, snap ring, limited block, sealing shroud, bearing block, without glossy
Plain besring, divided ring, O-ring III and filler；
Handle set, which is fixed on, to be lengthened above operating stick, and handle is fixed on handle set, equipped with card between handle set and upper cover
Ring and limited block, sealing shroud, bearing block and Nonlubricated bearing II, which are mounted on, to be lengthened between operating stick and extension pipe, with bearing
Seat bottom intersection lengthening operating stick on be equipped with a divided ring, between sealing shroud and extension pipe be equipped with O-ring III, upper cover and lengthen
Operating stick is added with filler.
Preferably, fixed axis and II bearing of divided ring thread seal cover screwing.
The present invention can online replacement valve rod sealing assembly with pressure the assemble method for welding buried ball valve entirely it is as follows:
1) Lower shaft sleeve and Upper shaft sleeve are integrally welded using complete penetraction and fusion in welding mode with center valve body, and finish to it；
2) parts such as sphere, lower fixing axle, upper fixing axle are installed, it is fixed up and down by divided ring I and divided ring II
Then fixing axle carries out testing valve performance；
3) divided ring I is removed if testing valve performance is unqualified and divided ring II is replaced part in valve, corrected,
Performance qualification is known in the performance test for re-starting valve；
4) after testing valve performance is qualified, by valve rod, thread seal set etc. is installed, and lower cover is welded to center valve body
On；
5) operating stick will be lengthened to connect by four uniformly distributed keys with valve rod, and is covered and is fixed by key, then by extension pipe
It is welded on Upper shaft sleeve；
6) divided ring III, sealing shroud and O-ring III are first installed and complete the installation of filler and the installation of operating system again；
7) valve is installed to transport line.
In use, if valve encounters emergency event in use, the filler of online directly replacement operation system.
Using the present invention, before realizing finished product installation can maintenance function, product qualified rate improves 40% by this function, drop
Low valve manufacture process costs, improve the operability of installation personnel, reduce the operation cost of enterprise, realize simultaneously
The function of the online filler-changeable of buried valve, eliminates the leakage point of the buried part of upper valve rod, improves making for product
With performance, the maintenance cost in product later period is reduced, improves the economic benefit of enterprise, has been added pair above operating stick lengthening
Open loop and sealing shroud improve the safety and sealing stability of valve.
Detailed description of the invention
Fig. 1 is that the present invention can the online overall schematic with pressure that weld buried ball valve entirely for replacing valve rod sealing assembly；
Fig. 2 is that the present invention can the online valve body structure schematic diagram with pressure for replacing valve rod sealing assembly；
Fig. 3 is that the present invention can the online sphere fixed structure schematic diagram with pressure for replacing valve rod sealing assembly；
Fig. 4 is that the present invention can the online extension bar attachment structure schematic diagram with pressure for replacing valve rod sealing assembly；
Fig. 5 is that the present invention can the online operating system schematic diagram with pressure for replacing valve rod sealing assembly；
Fig. 6 is that the present invention can the online lengthening operating stick for welding buried ball valve entirely and valve with pressure for replacing valve rod sealing assembly
Bar is keyed schematic diagram.
In figure, center valve body 11, left valve barrel 12, right valve barrel 13, sphere 14, lower cover 15, extension pipe 16, upper cover 17, fire prevention
Gasket 18, exhaust-valve I 19, exhaust-valve II 110, Lower shaft sleeve 21, Upper shaft sleeve 22, lower fixing axle 23, upper fixing axle 24, divided ring I
25, divided ring II 26, O-ring I 27, emergency sealing rouge 28, thread seal set 29, valve rod 31, key cover 32, Nonlubricated bearing
33, valve rod non-return holds circle 34, lengthens operating stick 35, key 36, O-ring II 37, handle set 41, handle 42, snap ring 43, limited block
44, sealing shroud 45, bearing block 46, Nonlubricated bearing 47, divided ring 48, O-ring III 49, filler 410.
Specific embodiment
It is a specific implementation case of the invention as shown in Fig. 1,2,3,4,5, it can online replacement valve stem seal group with pressure
The buried ball valve of welding entirely of part includes valve body structure 1, sphere fixed structure 2, extension bar connection structure 3, operating system 4, valve body
Structure 1 includes center valve body 11, left valve barrel 12, right valve barrel 13, sphere 14, lower cover 15, extension pipe 16, upper cover 17, fire prevention gasket
18, exhaust-valve I 19, exhaust-valve II 110, sphere fixed structure 2 include Lower shaft sleeve 21, Upper shaft sleeve 22, lower fixing axle 23, upper fixation
Axis 24, divided ring I 25, divided ring II 26, O-ring I 27, emergency sealing rouge 28, thread seal set 29, extension bar connection structure 3
Circle 34 is held including valve rod 31, key set 32, Nonlubricated bearing 33, valve rod non-return, lengthens operating stick 35, key 36, O-ring II 37,
Operating system 4 includes handle set 41, handle 42, snap ring 43, limited block 44, sealing shroud 45, bearing block 46, Nonlubricated bearing
47, divided ring 48, O-ring III 49, filler 410；Sphere 14 is mounted on inside center valve body 11, and Lower shaft sleeve 21 divides with Upper shaft sleeve 22
It is not welded on the upper and lower ends of center valve body 11, lower fixing axle 23 is separately mounted to the upper and lower of sphere 14 with upper fixing axle 24,
Lower fixing axle 23 is fixed by divided ring I 25, and upper fixing axle is fixed by divided ring II 26, and is tightened admittedly with thread seal set 29
Fixed, O-ring I 27 is fixed in lower fixing axle 23, added with emergency sealing rouge 28, left valve barrel between Upper shaft sleeve 22 and upper fixing axle 24
12 and right valve barrel 13 respectively at 11 both sides of center valve body weld, valve rod 31 pass through key set 32, thread seal cover 29, oil-free lubrication axis
It holds I 33, valve rod non-return circle 34 and is connected to sphere 14, added with an O-ring 37, lengthening behaviour between valve rod 31 and thread seal set 29
Make bar 35 and connect with valve rod 31 by 4 uniformly distributed keys 36,16 sets of extension pipe are lengthening 35 outside of operating stick and the weldering of Upper shaft sleeve 22
It connects, extension pipe 16 is equipped with exhaust-valve I 19 and exhaust-valve II 110, and lower cover 15 is welded on center valve body 11, and upper cover 17 passes through spiral shell
Nail is fixed on 16 top of extension pipe, and equipped with fire prevention gasket 18 between upper cover 17 and extension pipe 16, handle set 41 is fixed on lengthening
33 top of operating stick, handle 42 are fixed on handle set 41, and snap ring 43 and limited block 44 are housed between handle set 41 and upper cover 16,
Sealing shroud 45, bearing block 46 and Nonlubricated bearing II 47, which are mounted on, to be lengthened between operating stick 33 and extension pipe 15, with bearing
A divided ring 48 is housed in the lengthening operating stick 33 of 46 bottoms of seat intersection, O-ring III is housed between sealing shroud 45 and extension pipe 15
49, upper cover 16 and lengthening operating stick 33 are added with filler 410.
As shown in fig. 6, described can the online lengthening operation with pressure that weld buried ball valve entirely for replacing valve rod sealing assembly
It is connected by key between bar 33 and valve rod 25, and 4 keys are distributed in bar surrounding, constitutes the connection for being similar to spline, eliminated complete
The installation site of filler 410 has been moved on to 33 top of lengthening operating stick, realized by the leakage point for welding the buried part valve of buried ball valve
The possibility that filler is replaced online.
Described can the assemble method with pressure that weld buried ball valve entirely for replacing valve rod sealing assembly include online following step
It is rapid:
1) Lower shaft sleeve 21 and Upper shaft sleeve 22 are integrally welded using complete penetraction and fusion in welding mode with center valve body 11, and carry out essence to it
Processing；
2) parts such as sphere 14, lower fixing axle 23, upper fixing axle 24 are installed, passes through divided ring I 25 and divided ring II
26 fixed fixing axles up and down, then carry out testing valve performance；
3) removed if testing valve performance is unqualified part in II 26 pairs of valves of divided ring I 25 and divided ring replaced,
Performance qualification is known in amendment, the performance test for re-starting valve；
4) after testing valve performance is qualified, by valve rod 31, thread seal set 33 etc. is installed, and lower cover 15 is welded to
Between on valve body 11；
5) operating stick 36 will be lengthened to connect by four uniformly distributed keys 37 with valve rod 11, and fixed by key set 32, then
Extension pipe 16 is welded on Upper shaft sleeve 22
6) divided ring III 48, sealing shroud 45 and O-ring III 49 are first installed, then complete the installation and operating system of filler 410
Installation；
7) valve is installed to transport line；
In use, if valve encounters emergency event in use, the filler of online directly replacement operation system
410。
Using the present invention, before realizing finished product installation can maintenance function, product qualified rate improves 40% by this function, drop
Low valve manufacture process costs, improve the operability of installation personnel, reduce the operation cost of enterprise, realize simultaneously
The function of the online filler-changeable of buried valve, eliminates the leakage point of the buried part of upper valve rod, improves making for product
With performance, the maintenance cost in product later period is reduced, improves the economic benefit of enterprise, has been added pair above operating stick lengthening
Open loop and sealing shroud improve the safety and sealing stability of valve.
Claims (4)
1. one kind can online replacement valve rod sealing assembly with pressure the buried ball valve of welding entirely, it is characterised in that including valve body structure
(1), sphere fixed structure (2), extension bar connection structure (3) and operating system (4)；
Valve body structure (1) includes center valve body (11), left valve barrel (12), right valve barrel (13), sphere (14), lower cover (15), lengthens
Manage (16), upper cover (17), fire prevention gasket (18), exhaust-valve I (19) and exhaust-valve II (110)；Under sphere fixed structure (2) includes
Axle sleeve (21), Upper shaft sleeve (22), lower fixing axle (23), upper fixing axle (24), divided ring I (25), divided ring II (26), O-ring I
(27) and stop-leak compound (28)；Extension bar connection structure (3) includes valve rod (31), key set (32), Nonlubricated bearing (33), valve rod
Non-return holds circle (34), lengthens operating stick (35), key (36) and O-ring II (37)；
Sphere (14) is mounted on center valve body (11) inside, and Lower shaft sleeve (21) and Upper shaft sleeve (22) are respectively welded at center valve body
(11) upper and lower ends, lower fixing axle (23) are separately mounted to the upper and lower of sphere (14), lower fixing axle with upper fixing axle (24)
(23) fixed by divided ring I (25), upper fixing axle is fixed by divided ring II (26)；O-ring I (27) is fixed on lower fixing axle
(23) on, added with stop-leak compound (28) between Upper shaft sleeve (22) and upper fixing axle (24), left valve barrel (12) and right valve barrel (13) are respectively
It is welded with center valve body (11) both sides,
Valve rod (31) passes through key set (32), thread seal set (29), Nonlubricated bearing I (33), valve rod non-return circle (34) connection
To sphere (14), added with an O-ring (37) between valve rod (31) and thread seal set (29), operating stick (35) and valve rod are lengthened
(31) by 4 uniformly distributed key (36) connections, extension pipe (16), which is covered, to be welded in lengthening operating stick (35) outside with Upper shaft sleeve (22),
Extension pipe (16) is equipped with exhaust-valve I (19) and exhaust-valve II (110), and lower cover (15) is welded on center valve body (11), upper cover
(17) it is fixed by screws in above extension pipe (16), fire prevention gasket (18) is housed between upper cover (17) and extension pipe (16),
Operating system (4), which is fixed on, to be lengthened above operating stick (33).
2. according to claim 1 the welding entirely buried ball valve with pressure for replacing valve rod sealing assembly, feature can exist online
In the operating system (4) include handle set (41), handle (42), snap ring (43), limited block (44), sealing shroud (45), axis
Hold seat (46), Nonlubricated bearing (47), divided ring (48), O-ring III (49) and filler (410)；
Handle set (41), which is fixed on, to be lengthened above operating stick (33), and handle (42) is fixed on handle set (41), handle set (41)
Snap ring (43) and limited block (44), sealing shroud (45), bearing block (46) and Nonlubricated bearing II are housed between upper cover (16)
(47) it is mounted on and lengthens between operating stick (33) and extension pipe (15), in the lengthening operating stick intersected with bearing block (46) bottom
(33) on be equipped with a divided ring (48), between sealing shroud (45) and extension pipe (15) be equipped with O-ring III (49), upper cover (16) with add
Long operating stick (33) is added with filler (410).
3. according to claim 1 the welding entirely buried ball valve with pressure for replacing valve rod sealing assembly, feature can exist online
It is tightened with divided ring II (26) bearing with thread seal set (29) in fixed axis.
4. a kind of as claimed in claim 2 can the online assembling side with pressure that weld buried ball valve entirely for replacing valve rod sealing assembly
Method, it is characterised in that the following steps are included:
1) Lower shaft sleeve (21) and Upper shaft sleeve (22) are integrally welded using complete penetraction and fusion in welding mode with center valve body (11)；
2) sphere (14), lower fixing axle (23), upper fixing axle (24) are installed, passes through divided ring I (25) and divided ring II
(26) fixed fixing axle up and down, then carries out testing valve performance；
3) remove divided ring I (25) if testing valve performance is unqualified and divided ring II (26) part in valve is replaced,
Amendment re-starts the performance test of valve until performance qualification；
4) after testing valve performance is qualified, by valve rod (31), thread seal set (33) is installed, and lower cover (15) is welded to
Between on valve body (11)；
5) operating stick (36) will be lengthened to connect by four uniformly distributed keys (36) with valve rod (11), and fixed by key set (32),
Then extension pipe (16) is welded on Upper shaft sleeve (22)
6) divided ring III (48), sealing shroud (45) are first installed and O-rings III (49) complete the filling of filler (410) again and operation is
The installation of system；
7) valve is installed to transport line；
If 8) valve encounters emergency event in use, directly filler (410) are replaced online.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810752024.0A CN108953750A (en) | 2018-07-10 | 2018-07-10 | It can the online buried ball valve of welding entirely and its assemble method with pressure for replacing valve rod sealing assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810752024.0A CN108953750A (en) | 2018-07-10 | 2018-07-10 | It can the online buried ball valve of welding entirely and its assemble method with pressure for replacing valve rod sealing assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108953750A true CN108953750A (en) | 2018-12-07 |
Family
ID=64482602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810752024.0A Pending CN108953750A (en) | 2018-07-10 | 2018-07-10 | It can the online buried ball valve of welding entirely and its assemble method with pressure for replacing valve rod sealing assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108953750A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529140A (en) * | 2019-08-27 | 2019-12-03 | 中铁工程装备集团有限公司 | One kind can replacement mud ball-cock device with pressure and application method |
| CN116038273A (en) * | 2022-12-29 | 2023-05-02 | 广西松浦电子科技有限公司 | Automatic production line of pulse type precise electromagnetic metering valve |
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|---|---|---|---|---|
| US5263682A (en) * | 1992-03-17 | 1993-11-23 | Whitey Co. | Valve stem packing system |
| CN202203434U (en) * | 2011-08-03 | 2012-04-25 | 上海浦东汉威阀门有限公司 | Hermetically sealed ball valve |
| CN103672008A (en) * | 2013-11-28 | 2014-03-26 | 克里特集团有限公司 | Ball valve with all-welded valve bodies and welding method of ball valve |
| CN203784438U (en) * | 2014-04-09 | 2014-08-20 | 江苏建康职业学院 | Direct burial type welding ball valve used for hospital flue gas transmission |
| CN205663923U (en) * | 2016-06-16 | 2016-10-26 | 江苏盐电阀门有限公司 | Ball valve is fixed to upper assembling type ultra -low temperature |
| CN206386509U (en) * | 2016-12-12 | 2017-08-08 | 圣博莱阀门有限公司 | Low temperature eccentric ball valve |
| CN207486103U (en) * | 2017-11-26 | 2018-06-12 | 浙江安构阀业有限公司 | High platform extension bar ball valve |
| CN208816828U (en) * | 2018-07-10 | 2019-05-03 | 浙江福瑞科流控机械有限公司 | It is a kind of can online replacement valve rod sealing assembly with pressure the buried ball valve of welding entirely |
-
2018
- 2018-07-10 CN CN201810752024.0A patent/CN108953750A/en active Pending
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| CN103672008A (en) * | 2013-11-28 | 2014-03-26 | 克里特集团有限公司 | Ball valve with all-welded valve bodies and welding method of ball valve |
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| CN206386509U (en) * | 2016-12-12 | 2017-08-08 | 圣博莱阀门有限公司 | Low temperature eccentric ball valve |
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| CN208816828U (en) * | 2018-07-10 | 2019-05-03 | 浙江福瑞科流控机械有限公司 | It is a kind of can online replacement valve rod sealing assembly with pressure the buried ball valve of welding entirely |
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| Title |
|---|
| 朱绍华，黄燕滨， 李清旭，翁熙祥: "油田化学应用技术", vol. 1, 中国石油大学出版社, pages: 966 - 251 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529140A (en) * | 2019-08-27 | 2019-12-03 | 中铁工程装备集团有限公司 | One kind can replacement mud ball-cock device with pressure and application method |
| CN110529140B (en) * | 2019-08-27 | 2021-04-23 | 中铁工程装备集团有限公司 | Device capable of replacing mud ball valve under pressure and using method |
| CN116038273A (en) * | 2022-12-29 | 2023-05-02 | 广西松浦电子科技有限公司 | Automatic production line of pulse type precise electromagnetic metering valve |
| CN116038273B (en) * | 2022-12-29 | 2024-04-16 | 广西松浦电子科技有限公司 | Automatic production line of pulse type precise electromagnetic metering valve |
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Application publication date: 20181207 |