CN107883020A - Three-way half ball valve and repair method based on the maintenance with pressure online of pipeline normal operation - Google Patents
Three-way half ball valve and repair method based on the maintenance with pressure online of pipeline normal operation Download PDFInfo
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- CN107883020A CN107883020A CN201711036940.6A CN201711036940A CN107883020A CN 107883020 A CN107883020 A CN 107883020A CN 201711036940 A CN201711036940 A CN 201711036940A CN 107883020 A CN107883020 A CN 107883020A
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- maintenance
- seal
- sealing
- valve
- switch
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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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
- F16K11/087—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with spherical plug
- F16K11/0873—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with spherical plug the plug being only rotatable around one spindle
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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
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
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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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0008—Mechanical means
- F16K37/0016—Mechanical means having a graduated scale
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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
- F16K43/00—Auxiliary closure means in valves, which in case of repair, e.g. rewashering, of the valve, can take over the function of the normal closure means; Devices for temporary replacement of parts of valves for the same purpose
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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
- F16K5/0605—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 with particular plug arrangements, e.g. particular shape or built-in means
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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
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
- Taps Or Cocks (AREA)
Abstract
The present invention relates to a kind of three-way half ball valve based on the maintenance with pressure online of pipeline normal operation, including valve body, hemisphere valve element；Three passages are provided with the valve body, three passages are respectively fluid entering channel, fluid outlet passage and on-bne repair passage；The switch seal pair with hemisphere valve element fitted seal is provided with fluid outlet passage；The maintenance sealing pair with hemisphere valve element fitted seal is provided with on-bne repair passage；Maintenance sealing gland is installed in the outer face of on-bne repair passage；The on-bne repair passage is provided with pressure release component and pressure gauge with on-bne repair passage UNICOM；The hemisphere valve element is located in the valve pocket of valve body, and semisphere valve valve core shaft is arranged on valve body, and rotating shaft is connected with external drive device.A kind of online repair method with pressure is further related to based on above-mentioned semisphere valve.The present invention can realize pipeline normal operation on-bne repair operation, and the problem of pipeline normal operation on-bne repair can not be realized by solving semisphere valve currently on the market or other valves, reduced maintenance cost, shortened maintenance activity and be pressed for time, reduce labor intensity.
Description
Technical field
The invention belongs to semisphere valve technical field, more particularly to a kind of based on the maintenance with pressure online of pipeline normal operation
Three-way half ball valve and repair method.
Background technology
At present, valve is the mechanical device of the flow of fluid media (medium) of control flowing, flow direction, pressure, temperature etc., valved tube
Part is technically part basic in pipe-line system as pump, is the critical component of pipe switch adjustment control.Hemisphere
Valve, be for solve the conveying of the two-phase mixtures such as solution and ore pulp flow medium technical barrier researches and develops is a kind of novel valve.Half
Ball valve is to be equipped with performs device in a kind of its executing agency of the product of practical manipulation type, and more convenient user's operation is light, at a distance
Automation mechanized operation, the purposes scope of semisphere valve is developed, the inconvenient and manual operation or normally opened dynamic especially under rugged environment
When making, in the case of supporting automation computation, semisphere valve, new intention has more been started.The research and development success of semisphere valve, is water
Business, chemical industry, oil, combustion gas is metallurgical, is easily to precipitate in the industrial department solution process flow such as electronics, fouling, separates out and influences stream
Reliable control valve is provided in the predicament of journey, new excellent product is provided to improve China's industrial management equipment.
Thus it is widely used in water, steam, sewage, petrochemical industry, natural gas, the two-phase medium such as solution and ore pulp, and dust gas
The desired transmission equipment of body etc..Semisphere valve is in addition to normal operating is the fully closed use of standard-sized sheet, and can also adjust and throttle use, but
The flow direction of the medium to be paid special attention to, in case sealing surface is by erosion or unstable wear.
Semisphere valve has that opening force is small, and closing can abolish fouling obstacle, the features such as realizing good seal performance, wear-resisting.Have
Following feature:
1. through type：One-way sealing and eccentric type structure, ball is separated with valve body during unlatching, and runner is led directly to, and is not in
Card, stifled phenomenon.
2. switch is convenient：Sphere is separated with valve body during keying, and without any contact, moment of torsion is small, rotate it is flexible, half during keying
The shear action of ball valve seat can cut fouling and adhesion thing on sealing surface, and sealing can be kept tight.
3. the eccentric structure of sealing surface enables sphere to compensate abrasion automatically, the sealing of valve, service life length, peace are kept
It is complete reliable.
At present, semisphere valve classification is broadly divided into dress eccentric half-ball valve, side dress eccentric half-ball valve；
Upper dress eccentric half-ball valve：The valve that upper dress eccentric half-ball valve inner components are installed and disassembled from valve top
Door, when advantage is maintenance, without being removed from pipeline, you can change the accessory in valve, but need pipeline out of service.
Side fills eccentric half-ball valve：Its internal structure is integral type, and inner components are installed and disassembled from side
A kind of valve, it is out of service to close pipeline during maintenance, overall to remove maintenance from pipeline.
In actual use, due to containing sharp dielectric layer in abrasion or medium, sealing pair will be damaged or draw
Wound causes have a lamellar spacing between valve element and valve seat, causes valve to produce leakage, it is therefore desirable to periodically semisphere valve is repaired,
Existing traditional semisphere valve or other valves, it is necessary to related valve before shutoff valve and after valve, and stop defeated in maintenance
The supply of medium is sent, is then disassembled again, is repaired by heavy and specialty instrument, traditional maintenance mode needs
Stop pipeline medium supplies the dismounting, it is necessary to cumbersome, and then causes maintenance time long, has had a strong impact on making for semisphere valve
With, while increase the workload of maintenance personal, reduce the operating efficiency of staff；It will be influenceed just because maintenance time is long
Normal production capacity.
A kind of three-way half ball valve, patent No. CN201320474351.7, publication date 20140115 are also disclosed in the prior art
With a kind of T-shaped three-channel double-eccentric hemispherical ball valve, Application No. CN201310239865.9, publication date 20130904；
A kind of three-way half ball valve, is specifically disclosed directly below feature, and the valve is three-port structure, and wherein passage one is charging aperture,
Passage two is straight-through discharging opening, and passage three is bypass discharging opening.When pulling handle clockwise, valve shaft is driven by sleeve
Spent rotationally clockwise with hemispherical valve element, close bypass discharging opening three, connect charging aperture one and straight-through discharging opening two；When inverse
When clockwise pulls handle, valve shaft and hemispherical valve element is driven to rotate in an anti-clockwise direction 90 degree by sleeve, closing is led directly to out
Material mouth two, connect charging aperture one and bypass discharging opening two.Recorded according to patent document, primarily directed to existing threeway discharging ball valve
Because the gap of valve element (threeway spheroid) between valve body is easily accessible slurry medium, by valve element (threeway spheroid) and valve after drying up
Body bonds together, and again during rotational valve core (threeway spheroid), resistance is very big, so that can not Open valve；Patent document
The three-way half ball valve of record can not realize on-bne repair in the case of normal operation.
A kind of T-shaped three-channel double-eccentric hemispherical ball valve, Application No. CN201310239865.9, publication date 20130904；Valve body
On be provided with three passages being orthogonal, wherein orthogonal two passages A, C are respectively arranged with valve seat, in integral structure
Valve element on be provided with two mutually at 45 ° ball face sealing faces for forming sealing pair with the valve seat set in passage A, C respectively, and
The centre of sphere of two spheres is respectively offset from valve shaft centre of gyration side.When under valve element drives in valve shaft around O rotate counterclockwises, valve element
Sphere a and valve seat A be in close contact and wedging self-locking, realize forced seal；Now valve forms the L-type passage of B-C connections.
When valve element under valve shaft driving around O turn clockwise 45 ° when, the sphere c and valve seat C of valve element are in close contact and wedging self-locking, reality
Existing forced seal；Now valve C-channel is closed, and forms the through-type passage of A-B connections；The threeway that patent document is recorded half
Ball valve can not realize on-bne repair in the case of normal operation.
Upper dress eccentric half-ball valve of the prior art is merely able to complete without removing from pipeline, carries out in eccentric half-ball valve
Portion's parts are installed and disassembled from valve top, but can not realize on-bne repair in the case of normal operation.
A kind of three-way half ball valve and repair method based on the maintenance with pressure online of pipeline normal operation are provided for this present invention.
The content of the invention
Of the invention is to solve technical problem present in known technology, and offer one kind need not be from pipeline in conduit running
Upper dismounting, in pipeline normal operation with three-way half ball valve and the maintenance side that semisphere valve inner components maintenance is carried out under pressure condition
Method.
The present invention is adopted the technical scheme that to solve technical problem present in known technology：
A kind of three-way half ball valve based on the maintenance with pressure online of pipeline normal operation, including valve body, hemisphere valve element；It is special
Sign is：Be provided with three passages in the valve body, three passages are respectively fluid entering channel, fluid outlet passage and online
Access path；Fluid entering channel, fluid outlet passage and on-bne repair passage connect with valve body valve pocket respectively；
The switch seal pair with hemisphere valve element fitted seal is provided with fluid outlet passage；The secondary bag of the switch seal
Switch static seal and switch dynamic sealing are included, the switch static seal is fixedly mounted in fluid outlet passage, and the switch is dynamic close
Envelope is arranged on hemisphere valve element；Switch static seal in fluid outlet passage coordinates with the switch dynamic sealing on hemisphere valve element
Form switch seal pair；The maintenance sealing pair with hemisphere valve element fitted seal is provided with on-bne repair passage；
The maintenance sealing pair includes maintenance static seal and maintenance dynamic sealing；The maintenance static seal is arranged on on-bne repair
In passage, the maintenance dynamic sealing is arranged on hemisphere valve element；Maintenance static seal and hemisphere valve in on-bne repair passage
Maintenance dynamic sealing on core cooperatively forms maintenance sealing pair；Maintenance sealing gland is installed in the outer face of on-bne repair passage；
The on-bne repair passage is provided with the pressure release component of on-bne repair passage UNICOM and overhauled for detecting under inspecting state
With the presence or absence of the pressure gauge for having pressure in passage；The hemisphere valve element is located in the valve pocket of valve body, and hemisphere valve core is by turning
Axle is arranged on valve body, and rotating shaft is connected with external drive device；Under working condition of damming, the secondary switch of the switch seal is quiet
Sealing and the sealing surface fitting of switch dynamic sealing, form cut-off sealing structure；Under service work state, in on-bne repair passage
Liquid emptied by pressure release component；The maintenance static seal of the maintenance sealing pair and the sealing surface fitting for overhauling dynamic sealing, shape
Into maintenance sealing structure；Maintenance sealing gland is opened, the secondary switch dynamic sealing of switch seal is in on-bne repair passage.
The present invention can also use following technical measures：
Preferably, the switch static seal includes outlet valve body seal receptacle；The outlet valve body seal receptacle is pressed by sealing
Seat is removable to be fixedly mounted on valve body；The outlet valve body seal receptacle is provided with matches somebody with somebody with the switch dynamic sealing on hemisphere valve element
The outlet metallic sealing section of conjunction；Sealing ring is provided between sealing wedge, outlet valve body seal receptacle and valve body；The switch dynamic sealing
Including the spherical crown being arranged on by fastener on the hemisphere valve element, switch bullet is installed between spherical crown and the hemisphere valve element
Property dynamic seal；When the elastic dynamic seal of switch is bonded with exporting the outlet ball seal face of valve body seal receptacle, formation is opened
Close sealing pair.
Preferably, the sealing ring uses tire formula sealing ring, including tire formula seal, and the tire formula seal, which is provided with, to be increased
Compensating port is pressed, the valve body is provided with supercharging compensating port mounting hole.
Preferably, the maintenance static seal includes maintenance seal receptacle, and the maintenance seal receptacle is fixedly connected with valve body, overhauled
Installation and repairing elasticity static seal at the valve pocket of the lower end valve body of seal receptacle；The lower section of the hemisphere valve core upper switch dynamic sealing
Provided with maintenance dynamic sealing, the maintenance dynamic sealing is the maintenance metallic sealing section being integrated with hemisphere valve core；Hemisphere valve core
On spheroid maintenance sealing surface with overhaul seal receptacle on maintenance elasticity static seal be bonded when, formation overhaul sealing pair.
Preferably, the elastic static seal of the maintenance is tire formula seal, including tire formula seal, the tire formula seal
Supercharging compensating port is provided with, lozenges is provided with tire formula seal, the outer face of the maintenance seal receptacle is provided with mends with supercharging
Repay a mouthful mounting hole.
Preferably, overhauling static seal includes maintenance seal receptacle, and the maintenance seal receptacle is fixedly connected with valve body, sealed in maintenance
The lower end of seat, which is provided with, overhauls quiet metallic sealing section；The lower section of the hemisphere valve core upper switch dynamic sealing is provided with maintenance dynamic sealing,
Overhauling dynamic sealing includes overhauling elastic dynamic seal, and the elastic dynamic seal of maintenance is arranged on hemisphere valve element；The inspection
When repairing elastic dynamic seal and be bonded with overhauling the maintenance static seal face of lower end of seal receptacle, formed and overhaul sealing pair.
Preferably, the elastic dynamic seal vulcanization of the maintenance is on hemisphere valve element.
Preferably, the upper surface of the maintenance sealing gland is uniformly at least provided with two hoisting rings；Two hoisting rings and inspection
The connecting hole repaiied on sealing gland is located on same circumference.
Preferably, flow direction of the outside of the valve body along fluid is provided with opotism.
The present invention also provides a kind of pipe pressurized on-bne repair method based on above-mentioned three-way half ball valve, before pipeline includes valve
Pipeline and the three-way half ball valve between pipeline after valve preceding pipeline, valve after pipeline, valve, the three-way half ball valve is using upper
The three-way half ball valve stated；When the switch elasticity dynamic seal for judging three-way half ball valve damages, carried out in the case of pipe pressurized
Switch elastic dynamic seal to be overhauled, specific repair method comprises the following steps：
The first step, start external drive device, drive lower hemisphere valve element to rotate around the shaft in external drive device, this
When, the maintenance dynamic sealing of the hemisphere valve element is bonded with the maintenance static seal in on-bne repair passage, forms maintenance sealing knot
Structure, it is now service work state；
Second step, in the outside of valve body, pressure release component is opened, arranged the pressure of on-bne repair passage by pressure release component
Sky, the pressure of access path is zero after emptying；
3rd step, the fastening bolt of closure is overhauled from the external opening of valve body, maintenance closure is removed, is exposed whole
On-bne repair passage, elastic dynamic seal is now switched in on-bne repair passage；
4th step, dismantle spherical crown successively using extracting tool and switch elastic dynamic seal, and take the switch bullet of damage away
Property dynamic seal；
5th step, the installation end face of cleaning switch dynamic sealing；
6th step, the switch elasticity dynamic seal more renewed, spherical crown gland is installed on the top for switching elastic dynamic seal,
And lock；
7th step, installation and repairing sealing gland, close pressure release component；
8th step, the external drive device of reverse starting, lower hemisphere valve element is driven around the shaft in external drive device again
Opposite direction is rotated to switch static seal, now, the sealing surface of the elastic dynamic seal of switch and the switch static seal on valve body
Fitting, form cut-off sealing structure；
9th step, in the state of the 8th step is kept, detect whether that leakage has leakage by pressure gauge；If do not let out
Dew, it is again started up external drive device and opens hemisphere valve element according to the aperture being actually needed；If leakage, repeat above-mentioned first
Step is qualified for extremely until detecting to the 8th step.
The present invention has the advantages and positive effects of：The present invention uses above-mentioned technical proposal, can reach in pipeline just
The purpose of fast assembling-disassembling maintenance sealing pair under normal working condition.Three passages of semisphere valve are respectively fluid entering channel, fluid
Flow pass and on-bne repair passage；Fluid entering channel, fluid outlet passage and on-bne repair passage respectively with valve body
Valve pocket connects；The switch seal pair with hemisphere valve element fitted seal is provided with fluid outlet passage；In on-bne repair passage
The interior maintenance sealing pair being provided with hemisphere valve element fitted seal；Maintenance sealing pressure is installed in the outer face of on-bne repair passage
Lid；On-bne repair passage is provided with the pressure release component of on-bne repair passage UNICOM and led to for detecting to overhaul under inspecting state
It whether there is the pressure gauge for having pressure in road, after pressure is emptied by pressure release component；Can so realize is not influenceing to be responsible for
Under road normal operation, upkeep operation is carried out under bypass passageways passive state, reduces maintenance difficulty, improves safety
Property；Under working condition of damming, the secondary switch static seal of the switch seal and the sealing surface fitting for switching dynamic sealing, formed and cut
Only sealing structure；Pressure release is carried out by pressure release component first；Then maintenance sealing gland is opened, the secondary switch of switch seal moves close
Envelope is in bypass passageways；And then maintenance personal can realize on-bne repair operation under pipeline normal operation；With traditional half
Ball valve is compared, and solves the problems, such as that semisphere valve currently on the market can not realize on-bne repair under pipeline normal operation, and solve
Other valves, such as gate valve, butterfly valve, ball valve, stop valve etc. can not realize the difficult point overhauled under pipeline normal operation；Therefore this hair
It is bright to reduce maintenance cost in the case where not influenceing fluid media (medium) and normally conveying, shorten maintenance activity and be pressed for time, reduce
Labor intensity, conventional valves are avoided to stop the problem of medium supply belt carrys out production capacity reduction.
Brief description of the drawings
Fig. 1 is the stereogram of the present invention；
Fig. 2 is the top view of the present invention；
Fig. 3 is A-A sectional views in Fig. 2；
Fig. 3 a are that pressure release component and pressure gauge are set directly at structural representation on on-bne repair passage；
Fig. 4 is I portions enlarged drawing in Fig. 3.
Fig. 5 is open mode structural representation of the present invention；
Fig. 6 is present invention maintenance state structural representation；
Fig. 7 is II portions enlarged drawing in Fig. 6；
Fig. 8 is C-C sectional views in Fig. 6；
Fig. 9 is IV partial enlarged drawings in Fig. 8；
Figure 10 is that elastic static seal structural representation is overhauled in Fig. 9；
Figure 11 is B-B sectional views in Fig. 2；
Figure 12 is III partial enlarged drawings in Figure 11；
Figure 13 is ring structure schematic diagram in Figure 11；
Figure 14 is the structural representation of embodiment 2；
Figure 15 is the structural representation of embodiment 3；
Figure 16 is the structural representation of embodiment 4；
Figure 17 is using state structure diagram of the present invention.
In figure：1st, valve body；1-1, fluid entering channel；1-20, switch seal pair；1-21, switch static seal；1-210, go out
Mouth valve seal seat；1-211, sealing wedge；1-212, outlet metallic sealing section；1-213, sealing ring；1-2130, the sealing of tire formula
Body；1-2131, supercharging compensating port；1-22, switch dynamic sealing；1-220, spherical crown；1-221, the elastic dynamic seal of switch；1-2, stream
Body flow pass；1-3, on-bne repair passage；1-30, maintenance sealing pair；1-31, maintenance static seal；1-310, maintenance seal receptacle；
1-311, the elastic static seal of maintenance；1-3110, tire formula seal；1-3111, supercharging compensating port；1-3112, lozenges；1-
32nd, dynamic sealing is overhauled；2nd, hemisphere valve element；2-1, rotating shaft；3rd, sealing gland is overhauled；4th, pressure release component；5th, pressure gauge；6th, hang
Ring；7th, opotism；8-1, valve preceding pipeline；8-2, valve preceding pipeline；9th, external drive device.
Embodiment
In order to further understand the content, features and effects of the present invention, hereby enumerating following examples, and coordinate accompanying drawing
Describe in detail as follows：
Embodiment 1, refers to Fig. 1 to 7, a kind of three-way half ball valve based on the maintenance with pressure online of pipeline normal operation, bag
Include valve body 1, hemisphere valve element 2；Three passages are provided with the valve body, three passages are respectively fluid entering channel 1-1, fluid
Flow pass 1-2 and on-bne repair passage 1-3；Fluid entering channel, fluid outlet passage and on-bne repair passage difference
Connected with valve body valve pocket；
The switch seal secondary 1-20 with hemisphere valve element fitted seal is provided with fluid outlet passage 1-1；The switch
Sealing pair 1-20 includes switch static seal 1-21 and switch dynamic sealing 1-22, the switch static seal 1-21 are fixedly mounted on fluid
In flow pass 1-2, the switch dynamic sealing 1-22 is arranged on hemisphere valve element 2；Switch in fluid outlet passage is quiet close
Envelope cooperatively forms switch seal pair with the switch dynamic sealing on hemisphere valve element；It is provided with and hemisphere valve in on-bne repair passage
The maintenance sealing pair 1-30 of the fitted seal of core 2；The maintenance sealing pair 1-30 includes maintenance static seal 1-31 and maintenance dynamic sealing
1-32；The maintenance static seal 1-30 is arranged in on-bne repair passage 1-3, and the maintenance dynamic sealing 1-32 is arranged on hemisphere
On body valve element 2；It is close that the maintenance dynamic sealing on maintenance static seal and hemisphere valve element in on-bne repair passage cooperatively forms maintenance
Envelope is secondary；Maintenance sealing gland 3 is installed in the outer face of on-bne repair passage；The on-bne repair passage is provided with and online inspection
Repair the pressure release component 4 of passage UNICOM and whether there is the pressure gauge 5 for having pressure in access path under inspecting state for detecting,
The wherein preferred ball valve of pressure release component；Pressure release component 4 and pressure gauge 5 both can be arranged directly on on-bne repair passage (as schemed
3a), maintenance sealing gland can also be arranged on, is arranged in the present embodiment on maintenance sealing gland, the hemisphere valve element 2
In in the valve pocket of valve body, hemisphere valve core is arranged on valve body by rotating shaft 2-1, and rotating shaft is connected with external drive device；Cutting
Flow under working condition, the switch static seal 1-21 and switch dynamic sealing 1-22 of the switch seal secondary 1-20 sealing surface fitting,
Form cut-off sealing structure；Under service work state, the liquid in on-bne repair passage is emptied by pressure release component；The inspection
Sealing pair 1-30 maintenance static seal 1-31 and maintenance dynamic sealing 1-32 sealing surface fitting are repaiied, forms maintenance sealing structure；Beat
Maintenance sealing gland 3 is driven, switch seal secondary 1-20 switch dynamic sealing 1-22 is in on-bne repair passage.
Preferably, the switch static seal 1-21 includes outlet valve body seal receptacle 1-210；The outlet valve body seal receptacle leads to
Cross that sealing wedge 1-211 is removable to be fixedly mounted on valve body 1；The outlet valve body seal receptacle 1-210 is provided with and hemisphere
The outlet metallic sealing section 1-212 that switch dynamic sealing on valve element coordinates；Seal between wedge, outlet valve body seal receptacle and valve body
Provided with sealing ring 1-213；The switch dynamic sealing 1-22 includes the spherical crown being arranged on by fastener on the hemisphere valve element
1-220, between spherical crown and the hemisphere valve element installation switch elastic dynamic seal 1-221；The elastic dynamic seal of switch
When outlet ball seal face with exporting valve body seal receptacle is bonded, switch seal pair is formed.
Preferably, the maintenance static seal 1-31 includes maintenance seal receptacle 1-310, and the maintenance seal receptacle is fixedly connected with valve
Body 1, the installation and repairing elasticity static seal 1-311 at the valve pocket of the lower end valve body of maintenance seal receptacle；The hemisphere valve core 2
The lower section of upper switch dynamic sealing is provided with maintenance dynamic sealing 1-312, and the maintenance dynamic sealing is the inspection being integrated with hemisphere valve core
Repair metallic sealing section；Spheroid maintenance sealing surface on hemisphere valve core is bonded with overhauling the maintenance elasticity static seal on seal receptacle
When, form maintenance sealing pair.
Preferably, for the ease of lifting, while uniform force during in order to ensure lifting, in the maintenance sealing gland 3
Upper surface is uniformly at least provided with two hoisting rings 6；In order to avoid not influenceing the bulk strength of sealing gland, hoisting ring is close with overhauling
Connecting hole on sealed cover 3 is located on same circumference.
Preferably, in order to improve the aesthetic of the intensity of valve body and valve body, in stream of the outside of the valve body along fluid
Dynamic direction is provided with opotism 7.
The present invention can also use following technical measures：
Preferably, the sealing ring uses tire formula sealing ring 1-213, including tire formula seal 1-2130, the tire formula are close
Seal body and be provided with supercharging compensating port 1-2131, the valve body is provided with supercharging compensating port mounting hole；Figure 11 is referred to Figure 13.
Preferably, the elastic static seal 1-311 of the maintenance is tire formula seal, including tire formula seal 1-3110, institute
Tire formula seal is stated provided with supercharging compensating port 1-3111, it is close in tire formula in order to avoid seal departs from caused by pressure is excessive
Seal body 1-3110 and be provided with lozenges 1-3112, the outer face of the maintenance seal receptacle is provided with being pressurized compensating port mounting hole.Please
Refering to Fig. 8 to Figure 10.
Embodiment 2, refers to Figure 14, it is preferred that maintenance static seal 1-31 includes maintenance seal receptacle 1-310, the maintenance
Seal receptacle is fixedly connected with valve body 1, is provided with the lower end of maintenance seal receptacle and overhauls quiet metallic sealing section；Opened on the hemisphere valve core
The lower section for closing dynamic sealing is provided with maintenance dynamic sealing 1-312, and maintenance dynamic sealing 1-32 includes overhauling elastic dynamic seal 1-320, institute
The elastic dynamic seal of maintenance is stated to be arranged on hemisphere valve element；The elastic dynamic seal of maintenance and the lower end of maintenance seal receptacle
When overhauling static seal face fitting, maintenance sealing pair is formed.
The present embodiment is preferable, and the elastic dynamic seal vulcanization of maintenance is on hemisphere valve element.Can also be that tire formula is close
Sealing is inlaid on hemisphere valve element, including tire formula seal, and the tire formula seal is provided with supercharging compensating port, the hemisphere
Outer face on valve core is provided with being pressurized compensating port mounting hole.
Embodiment 3, refers to Figure 15, and the switch static seal 1-21 includes outlet valve body seal receptacle 1-210；Export valve body
Seal receptacle 1-210 is welded on valve body 1；The outlet valve body seal receptacle 1-210 is provided with to be moved with the switch on hemisphere valve element
Seal the outlet metallic sealing section 1-212 coordinated；Thus form fixed permanent metal sealing surface, and then and valve body
It is the same life-span, the outlet preferred karmarsch alloys of valve body seal receptacle 1-210 (babbit), steel alloy or hard alloy, stainless
Steel hard alloy, monel metal material are made.The switch dynamic sealing 1-22 includes being arranged on the hemisphere by fastener
Spherical crown 1-220 on body valve element, between spherical crown and the hemisphere valve element installation switch elastic dynamic seal 1-221；It is described to open
Close elastic dynamic seal with export valve body seal receptacle outlet ball seal face be bonded when, formation switch seal pair.Remaining structure
It is same as Example 1.
Embodiment 4, in the present embodiment, the sealing surface of the spherical crown on hemisphere valve element can also be that metal is close
Front cover, such as Figure 16.Remaining structure is same as Example 3.
The present invention also provides a kind of pipe pressurized on-bne repair method based on above-mentioned three-way half ball valve, before pipeline includes valve
Pipeline 8-2 and the three-way half ball valve between pipeline after valve preceding pipeline, valve, refer to Figure 17, institute after pipeline 8-1, valve
State three-way half ball valve and use above-mentioned three-way half ball valve；When the switch elasticity dynamic seal for judging three-way half ball valve damages,
Carry out switching elastic dynamic seal in the case of pipe pressurized and overhauled, specific repair method comprises the following steps：
The first step, start external drive device, drive lower hemisphere valve element to rotate around the shaft in external drive device, this
When, the maintenance dynamic sealing of the hemisphere valve element is bonded with the maintenance static seal in on-bne repair passage, forms maintenance sealing knot
Structure, it is now service work state；
Second step, in the outside of valve body, pressure release component is opened, arranged the pressure of on-bne repair passage by pressure release component
Sky, the pressure of access path is zero after emptying；
3rd step, the fastening bolt of closure is overhauled from the external opening of valve body, maintenance closure is removed, is exposed whole
On-bne repair passage, elastic dynamic seal is now switched in on-bne repair passage；
4th step, dismantle spherical crown successively using extracting tool and switch elastic dynamic seal, and take the switch bullet of damage away
Property dynamic seal；
5th step, the installation end face of cleaning switch dynamic sealing；
6th step, the switch elasticity dynamic seal more renewed, spherical crown gland is installed on the top for switching elastic dynamic seal,
And lock；
7th step, installation and repairing sealing gland, close pressure release component；
8th step, the external drive device of reverse starting, lower hemisphere valve element is driven around the shaft in external drive device again
Opposite direction is rotated to switch static seal, now, the sealing surface of the elastic dynamic seal of switch and the switch static seal on valve body
Fitting, form cut-off sealing structure；
9th step, in the state of the 8th step is kept, detect whether that leakage has leakage by pressure gauge；If do not let out
Dew, it is again started up external drive device and opens hemisphere valve element according to the aperture being actually needed；If leakage, repeat above-mentioned first
Step is qualified for extremely until detecting to the 8th step.
The present invention uses above-mentioned technical proposal, can reach the fast assembling-disassembling under pipeline normal operation and overhaul sealing pair
Purpose.Three passages of semisphere valve are respectively fluid entering channel, fluid outlet passage and on-bne repair passage；Fluid enters
Enter passage, fluid outlet passage and on-bne repair passage to connect with valve body valve pocket respectively；In fluid outlet passage be provided with
The switch seal pair of hemisphere valve element fitted seal；The maintenance with hemisphere valve element fitted seal is provided with on-bne repair passage
Sealing pair；Maintenance sealing gland is installed in the outer face of on-bne repair passage；On-bne repair passage is provided with and on-bne repair
The pressure release component of passage UNICOM and for detecting under inspecting state in access path with the presence or absence of there is the pressure gauge of pressure, passes through
After pressure release component empties pressure；It can so realize in the case where not influenceing main pipeline normal operation, in bypass passageways without pressure
Upkeep operation is carried out under state, reduces maintenance difficulty, improves security；Under working condition of damming, the switch seal
The sealing surface fitting of secondary switch static seal and switch dynamic sealing, forms cut-off sealing structure；Carried out first by pressure release component
Pressure release；Then maintenance sealing gland is opened, the secondary switch dynamic sealing of switch seal is in bypass passageways；And then maintenance personal
On-bne repair operation under pipeline normal operation can be realized；Compared with traditional semisphere valve, solve hemisphere currently on the market
Valve can not realize the problem of on-bne repair under pipeline normal operation, and solve other valves, such as gate valve, butterfly valve, ball valve, cut-off
Valve etc. can not realize the difficult point overhauled under pipeline normal operation；Therefore the present invention is in the situation for not influenceing fluid media (medium) and normally conveying
Under reduce maintenance cost, shorten maintenance activity and be pressed for time, reduce labor intensity, avoid conventional valves stop medium supply
The problem of bringing production capacity to reduce.
It is described above to be only the preferred embodiments of the present invention, any formal limitation not is made to the present invention,
Every technical spirit according to the present invention belongs to any simple modification made for any of the above embodiments, equivalent variations and modification
In the range of technical solution of the present invention.
Claims (10)
1. a kind of three-way half ball valve based on the maintenance with pressure online of pipeline normal operation, including valve body, hemisphere valve element；
It is characterized in that：Three passages are provided with the valve body, three passages are respectively fluid entering channel, fluid outlet passage
And on-bne repair passage；Fluid entering channel, fluid outlet passage and on-bne repair passage connect with valve body valve pocket respectively；
The switch seal pair with hemisphere valve element fitted seal is provided with fluid outlet passage；
The switch seal is secondary to include switch static seal and switch dynamic sealing, and the switch static seal is fixedly mounted on fluid outflow
In passage, the switch dynamic sealing is arranged on hemisphere valve element；Switch static seal and hemisphere valve in fluid outlet passage
Switch dynamic sealing on core cooperatively forms switch seal pair；
The maintenance sealing pair with hemisphere valve element fitted seal is provided with on-bne repair passage；
The maintenance sealing pair includes maintenance static seal and maintenance dynamic sealing；The maintenance static seal is arranged on on-bne repair passage
Interior, the maintenance dynamic sealing is arranged on hemisphere valve element；On maintenance static seal and hemisphere valve element in on-bne repair passage
Maintenance dynamic sealing cooperatively form maintenance sealing pair；
Maintenance sealing gland is installed in the outer face of on-bne repair passage；
The on-bne repair passage is provided with the pressure release component of on-bne repair passage UNICOM and for detecting under inspecting state
With the presence or absence of the pressure gauge for having pressure in access path；
The hemisphere valve element is located in the valve pocket of valve body, hemisphere valve core by rotating shaft be arranged on valve body on, rotating shaft with it is external
Drive device is connected；
Under working condition of damming, the secondary switch static seal of the switch seal and the sealing surface fitting for switching dynamic sealing, formed
End sealing structure；
Under service work state, the liquid in on-bne repair passage is emptied by pressure release component；The inspection of the maintenance sealing pair
Repair static seal and overhaul the sealing surface fitting of dynamic sealing, form maintenance sealing structure；Open maintenance sealing gland, switch seal pair
Switch dynamic sealing in the on-bne repair passage.
2. the three-way half ball valve according to claim 1 based on the maintenance with pressure online of pipeline normal operation, it is characterised in that：
The switch static seal includes outlet valve body seal receptacle；The outlet valve body seal receptacle is by sealing the removable fixed installation of wedge
On valve body；The outlet valve body seal receptacle is provided with the outlet metal sealing coordinated with the switch dynamic sealing on hemisphere valve element
Face；Sealing ring is provided between sealing wedge, outlet valve body seal receptacle and valve body；
The switch dynamic sealing includes the spherical crown being arranged on by fastener on the hemisphere valve element, the spherical crown and hemisphere
Installation switchs elastic dynamic seal between valve element；The elastic dynamic seal of switch and the outlet spheroid for exporting valve body seal receptacle are close
When front cover is bonded, switch seal pair is formed.
3. the three-way half ball valve according to claim 2 based on the maintenance with pressure online of pipeline normal operation, it is characterised in that：
The sealing ring uses tire formula sealing ring, including tire formula seal, and the tire formula seal is provided with supercharging compensating port, the valve
Body is provided with supercharging compensating port mounting hole.
4. the three-way half ball valve according to claim 1 based on the maintenance with pressure online of pipeline normal operation, it is characterised in that：
The maintenance static seal includes maintenance seal receptacle, and the maintenance seal receptacle is fixedly connected with valve body, in the lower end valve of maintenance seal receptacle
Installation and repairing elasticity static seal at the valve pocket of body；It is dynamic close that the lower section of the hemisphere valve core upper switch dynamic sealing is provided with maintenance
Envelope, the maintenance dynamic sealing is the maintenance metallic sealing section being integrated with hemisphere valve core；Spheroid maintenance on hemisphere valve core
When sealing surface is bonded with the maintenance elasticity static seal on maintenance seal receptacle, maintenance sealing pair is formed.
5. the three-way half ball valve according to claim 4 based on the maintenance with pressure online of pipeline normal operation, it is characterised in that：
The elastic static seal of the maintenance be tire formula seal, including tire formula seal, the tire formula seal are provided with supercharging compensation
Mouthful, the outer face of the maintenance seal receptacle is provided with being pressurized compensating port mounting hole.
6. the three-way half ball valve according to claim 1 based on the maintenance with pressure online of pipeline normal operation, it is characterised in that：
The maintenance static seal includes maintenance seal receptacle, and the maintenance seal receptacle is fixedly connected with valve body, set in the lower end of maintenance seal receptacle
There is the quiet metallic sealing section of maintenance；The lower section of the hemisphere valve core upper switch dynamic sealing is provided with maintenance dynamic sealing, overhauls dynamic sealing
Including overhauling elastic dynamic seal, the elastic dynamic seal of maintenance is arranged on hemisphere valve element；The maintenance elasticity is dynamic close
When the maintenance static seal face of lower end of the sealing with overhauling seal receptacle is bonded, maintenance sealing pair is formed.
7. the three-way half ball valve according to claim 6 based on the maintenance with pressure online of pipeline normal operation, it is characterised in that：
The elastic dynamic seal vulcanization of maintenance is on hemisphere valve element.
8. the three-way half ball valve according to claim 1 based on the maintenance with pressure online of pipeline normal operation, it is characterised in that：
The upper surface of the maintenance sealing gland is uniformly at least provided with two hoisting rings；Two hoisting rings and the company on maintenance sealing gland
Hole position is connect on same circumference.
9. the three-way half ball valve according to claim 1 based on the maintenance with pressure online of pipeline normal operation, it is characterised in that：
Flow direction of the outside of the valve body along fluid is provided with opotism.
10. the pipe pressurized on-bne repair method based on above-mentioned three-way half ball valve, it is characterised in that：Pipeline include valve preceding pipeline,
Pipeline and the three-way half ball valve between pipeline after valve preceding pipeline, valve after valve, the three-way half ball valve use above-mentioned power
Profit requires 1 to 9 any described three-way half ball valve；When the switch elasticity dynamic seal for judging three-way half ball valve damages, in pipe
Carry out switching elastic dynamic seal in the case of road is with pressure and overhauled, specific repair method comprises the following steps：
The first step, start external drive device, drive lower hemisphere valve element to rotate around the shaft in external drive device, now, institute
The maintenance dynamic sealing for stating hemisphere valve element is bonded with the maintenance static seal in on-bne repair passage, forms maintenance sealing structure, this
When be service work state；
Second step, in the outside of valve body, pressure release component is opened, emptied the pressure of on-bne repair passage by pressure release component, row
The pressure of access path is zero after sky；
3rd step, the fastening bolt of closure is overhauled from the external opening of valve body, maintenance closure is removed, exposed whole online
Access path, elastic dynamic seal is now switched in on-bne repair passage；
4th step, dismantle spherical crown successively using extracting tool and switch elastic dynamic seal, and the switch elasticity for taking damage away is dynamic
Seal；
5th step, the installation end face of cleaning switch dynamic sealing；
6th step, the switch elasticity dynamic seal more renewed, spherical crown gland is installed on the top for switching elastic dynamic seal, and locked
Tightly；
7th step, installation and repairing sealing gland, close pressure release component；
8th step, the external drive device of reverse starting, lower hemisphere valve element negative side around the shaft is driven in external drive device again
To rotation to static seal is switched, now, the elastic dynamic seal of switch is bonded with the sealing surface of the switch static seal on valve body,
Form cut-off sealing structure；
9th step, in the state of the 8th step is kept, detect whether that leakage has leakage by pressure gauge；If do not reveal, then
It is secondary to start external drive device according to the aperture opening hemisphere valve element being actually needed；If leakage, repeats the above-mentioned first step extremely
8th step is qualified for extremely until detecting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711036940.6A CN107883020B (en) | 2017-10-30 | 2017-10-30 | Three-way half ball valve for on-line pressurized overhaul based on normal operation of pipeline and overhaul method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711036940.6A CN107883020B (en) | 2017-10-30 | 2017-10-30 | Three-way half ball valve for on-line pressurized overhaul based on normal operation of pipeline and overhaul method |
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| Publication Number | Publication Date |
|---|---|
| CN107883020A true CN107883020A (en) | 2018-04-06 |
| CN107883020B CN107883020B (en) | 2023-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711036940.6A Active CN107883020B (en) | 2017-10-30 | 2017-10-30 | Three-way half ball valve for on-line pressurized overhaul based on normal operation of pipeline and overhaul method |
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|---|---|---|---|---|
| CN108662201A (en) * | 2018-05-30 | 2018-10-16 | 周平平 | A kind of three-way ball valve |
| CN116181956A (en) * | 2023-02-14 | 2023-05-30 | 佛山市禅城能源有限公司 | Quick ball valve device of changing under pressure |
| CN111609175B (en) * | 2020-06-22 | 2024-06-04 | 成都英派尔新能源科技有限公司 | Spherical sealing multi-way valve with pressure relief function |
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| CN108662201A (en) * | 2018-05-30 | 2018-10-16 | 周平平 | A kind of three-way ball valve |
| CN111609175B (en) * | 2020-06-22 | 2024-06-04 | 成都英派尔新能源科技有限公司 | Spherical sealing multi-way valve with pressure relief function |
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| CN116181956B (en) * | 2023-02-14 | 2023-09-22 | 佛山市禅城能源有限公司 | Quick ball valve device of changing under pressure |
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| CN107883020B (en) | 2023-06-27 |
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