CN1179819A

CN1179819A - Angle entry rotary valve

Info

Publication number: CN1179819A
Application number: CN 96192829
Authority: CN
Inventors: 杰勒德S·亨伍德
Original assignee: GERARD S HENWOOD
Current assignee: GERARD S HENWOOD
Priority date: 1995-02-06
Filing date: 1996-02-06
Publication date: 1998-04-22

Abstract

Straight line flow rotary valves with the valve member flow passage (21) turned away from the pipeline flow axis (22), to dispose the valve internals to an access port (50) located downstream on the same flow axis of the valve member (11). Another embodiment is used in place of pipe elbows where the rotary valve internals are accessed through a port (50) on the same flow axis (22) as the upstream pipe. In both valve body embodiments, the flow is turned again, downstream of the valve member (11), to communicate with the connecting downstream piping which, in the first embodiment is along the same axis as the upstream pipe (22), and in the second embodiment, is on a different axis (39), and, is generally 45 or 90 degrees turned from the upstream pipe. In both embodiments the flow turns in a component (12) installed, through the body access port (50). In all embodiments the turning component also services as the pressure boundary access cover over the body opening (50). In a variety of embodiments the turning component (12) additionally services as the valve seat (13), and as a behind the seat seal (16). Sealing member embodiments include floating and trunnion-mounted ball and partial ball valves, and butterfly valves. The preferred embodiment of butterfly valve has a removable resilient seal material (71) such as PTFE or a graphite-based laminate, retained to the valve disc member (11) to facilitate complete repair of all flow isolation surfaces without having to remove the disc member from the valve through the access port (50). Method for removing and installing valve internals through the access port is disclosed.

Description

Angle entry rotary valve

Technical field

The present invention relates to valve, the liquid that particularly industrial and commercial ball valve and fly valve, this type of valve are used for isolating with control apparatus and pipe-line system flows.

Background technique

In factory, valve is often wanted place under repair.Be welded in the valve on the pipeline, because the big spot reconditioning usually of the cost of dismounting and refitting.Door and ball-type linearly operating valve have valve gap, when this valve gap is removed, can abdicate the inlet that leads to the valve inner body.Having valve that flange plate or pinch tube connect can spot reconditioning, also can unload down to deliver to factory and go to repair.Possible words adopt depot level maintenance relatively good, because factory has the ability that valve that counterweight installs valve base and seal element carries out shop test.And, compare factory with the job site and be an even more ideal working environment and generally speaking repairing quality is relatively good.

When split type or side entering type ball valve with fly valve need be repaired and valve is to be welded on the pipeline or with flange plate to fix (or being fixedly clamped) on pipeline, because the restriction of spatial constraints or limited repairing time can not be removed under the situation of coming, and will have problems.This class valve does not have can be removed thereby can lead to the valve gap of part in the valve.

If be solded into a split type valve in the pipeline, pipeline must be cut and the valve body bolt could be pulled down to lead to part in the valve.Costing a lot of money of cutting pipeline.Caliber is greater than 20 1/2 " pipeline cut after, according to American National Standards Institute B16.25 standard, pipe end and valve end must carry out machining to reach the end size of oblique angle jam weld.After waiting valve to fix then, must be soldered to valve on the pipeline again.At last, according to the feature that valve is installed, carry out non-destructive inspection and penetrate to X ray integral body from comprising visual inspection.Split type or end is gone in the repair procedures of formula valve the step of dismounting and being of refitting pin maximum in the type of being solded into.

The MANUFACTURER of some split type valves can advise adopting and pulls down the valve body bolt, and the way that valve body is extracted pipeline is repaired.This method has many problems.If do not apply undesirable stress in pipe-line system, the pipe-line system at valve place just can not be released.These stress can become the basic reason of pipeline breaking in the future, and the pipeline breaking meeting under high pressure or dangerous medium situation is catastrophic.And, even using heavy suspension ring and annex thereof, between two-part of split type valve, do not have enough spaces inner body of properly dismantling and reset usually yet, and often cause (inner body) to misalign valve body and pipeline after separating.At last, but be not least important, because the danger that exists the pipeline that has unclamped to flick or move, this method also may danger close.If in repairing the process that the people is the repairing valve above-mentioned situation takes place, the part (head, hand, arm etc.) of machine shop worker's health between two valve bodies can be squeezed broken.

Two kinds in three kinds of main industrial rotary valves have online reparation the (the band valve gap) design.They are to head into (bulb stopper) ball valve and plug (taper or right cylindrical) valve.Another kind of rotary valve in industry and commercial situations extensive use is a fly valve.Therefore fly valve is a side entering type, and is not online repair type.Repair fly valve, at least one valve pipe connects and must be opened.When repairing at the scene, it runs into and problem split type or that the side entering type ball valve is same.Because conical-plug valve requires that straight line wedge power is arranged (gravity also or some mechanical assistance) usually, they always head into formula or bottom entering type usually.Although the technology of narrating in this patent shows as sphere in this article, the technology in subsphaeroidal or part ball plug (ball) valve and the fly valve does not have a mind to get rid of the application of this patent in the plug valve technology.

Existing severally head into formula, the online ball valve of repairing is suggested, for example in following U. S. Patent, propose: the patent 2,998,223 of Baxter (1961), Walter, the patent 4,562 of Costa and Eminger (1986), 860, the patent 4,637 of Stunkard (1986), 421, the patent 4,718 of Boelte (1988), 444, people's such as Bredtschneider (1961) patent 3,154,094 and 3,179,121.All these patents all propose at the flexible fastening valve, and this kind valve has the operating limit of 450 Fahrenheits.Elastic seat uses Teflon board PTFE (high polymer) to make usually, and Teflon is the E.I.dopont de Nemours ﹠amp that the U.S. reaches Wilmington, human relations Weir state; The TM trade mark of Company, elastic seat can be pressed in an affined ball and the valve seat annular groove in the formula of heading into ball valve from the top down.Should be understood that the pressurized that this valve is arranged often causes the damage of ball and soft seat ring, valve is ineffective to become an isolation mounting completely thereby make.It is the same with the replacing bicycle tyre to change soft valve seat from head into the formula ball valve.Operation that need repeatedly lever up and push and elastic seat material, band often is pierced in tire.The difference of tire and valve insert is: tire can be repaired, and valve insert is in case just scrapped after being destroyed by screwdriver or other instrument that levers up.Therefore, the split type and simple and easy assembly side entering type valve body has obtained using widely.A kind of development that makes the method that elastic seat is installed under valve and situation that pipeline links to each other fully will promote art technology, and this method can be reduced to minimum with the danger of damage elastic seat in the installation process simultaneously.

The problem that runs in the valve part is installed in the soft valve seat valve of the formula of heading into is mixed in the installation of metal seat valve class valve, has much smaller compressibility because compare with the surface of the soft and low friction of elastic seat material in the process of metal inside part in being pressed into valve of metal valve seat valve.Ironic is that for the metal valve seat valve, certain type of long-term approval for the user of part passage is vital in the valve, because this valve is because tight bad operating conditions makes them be more prone to be solded into pipeline, especially in the power station.

Many high-temperature ball valves are the ball formula designs of floating.In this design, ball is suspended between the upstream guidance and downstream valve seat of cup spring loading.The upstream guidance is all become fillet to be complementary with the profile with ball with valve seat.The thermally-induced motion that the valve part produced when spring used for adaptation high temperature is essential.The loading of spring can reach best loading effect by liquid stream axial compression valve seat/ball/upstream guidance and the cup spring along valve.Use split type or side entering type mouth, make the loading force that when on the fixture that connects the valve body each several part, applying moment of torsion, applies a resistance guide spring become possibility.

(a) a kind of valve of ball formula design of floating that heads into is disclosed in the U.S. Patent No. 5,313,976 of beasley (1994).A smooth plane wall and a kind of special square cup spring are adopted in this design, and it is to solve a kind of trial that is spring-loaded guidance assembled valve problem from the top down.This design has been arranged, and being pressed into the required downward power of square spring (perpendicular to liquid stream axle) in the pipe seam between valve body wall and upstream ball guidance can reach straight line centering by guidance and ball part are holded up.This design also may be worked when factory-assembled first, and still, in case after valve comes into operation, smooth planar wall will be no longer smooth and all needs to be repaired so that it works when valve is repaired.It is very difficult that planar wall is carried out on-the-spot machining meeting, because may need special tool(s) to calibrate the base angle of square area.

(b) moreover, the reparation of planar wall will cause need be thicker (oversize) cup spring remedy grinding also or the spillage of material that brings of machining.This problem is especially obvious when ball and valve seat need the measured surface of a matter to repair, and reparation can machining, and the mode of grinding and grinding is carried out, and has further reduced the compressible value of guidance spring.When repairing valve, must order a special spring in the time of especially after the smoothing of planar wall (with the part valve seat) finishes, could determining and just become a maintenance problem because of the size of spring.Till that time because the restriction of time of delivery will cause too late having little time of time to buy a spring customized.Reuse and have inefficacy and a kind of locking situation that old spring that the critical sphere that has dwindled loads size can cause valve seat, club falls down and is stuck and can not handle under this situation.

(c) last, according to the design of Beasley,, can do a little concessions to its intensity for the insertion that makes square cup spring is easier, this concession is the result that the spring size reduces.This will cause the too early inefficacy of spring with the identical problem of foregoing undersized spring.

Since ball valve is used as flow control valve under the High Temperature High Pressure occasion, it is very important making it have a kind of valve body design of leading to the destructive passage of nothing of inner body so.Control valve, especially those relate to the valve of the serious compression failure of several kips per square inch, experience the wearing and tearing of acceleration.Therefore, need often check and repair.

(d) U.S. Patent No. 5,305,986 of Hunt (1994) discloses a kind of split type (floating) ball valve, makes it be easy to be solded in the pipeline because this valve has the adaptive capacity of high temperature high voltage resistant.Split type valve body is a major defect of this design, because need to check at every turn and when repairing valve body, must pipeline be cut and reweld.Spring load guidance and to have the passage that makes things convenient for that leads to this valve inner body be an important improvement of this design effectively.

(e) for the prior art of non-rotating valve, hundreds of patent is arranged, the various doors and the ball valve that are used for factory are wherein disclosed.In the occasion of High Temperature High Pressure, for example in the power station, door and ball valve are for good and all to be connected on the valve body.Thereby, the valve seat grinding, machining and very frequent, less and bigger repair welding must be carried out on the position of valve, because most power station water supply steam supply valve all is welded on the pipeline.Can not take off valve and take factory and go to repair with regard to meaning and to take the portable dam of special use to scene.These instruments are except involving great expense, maybe when renting, be difficult to arrange the time (being with or without engineer/skilled worker) in addition, also often be difficult to assembling and can not always obtain and use heavy fixing lathe, boring machine etc. to process the same surface finishment that obtains.The on-the-spot problem that undesirable machine tool surface vibration can run into when being to use lighter portable machine to go to cut stone metal seat valve.

(f) in addition, it is unsafe making the workman be exposed to the zone that directly centers on valve in many production repair location.Nuclear power plant is exactly a good example of this situation.When needs carry out large-scale valve seat when repairing, the radiation protection subsidy of using up several technician is not any rare thing.Dangerous chemical environment is another example of this situation.

(g) and, as (the ANSI classification 1500 of less (below 3 inches and 3 inches) high pressure, 2500 and 4500) door is the same with the situation of ball valve, in case valve seat is damaged and when repairing on not having the position of seat material, still intact valve is just lost from the pipeline cutting-out.

(h) flange end connects the normally decision design of this type of valve, owing to be split type, end entrance formula (rotary valve) or low pressure are used (door and ball valve), and this class valve can be unloaded down repairing from pipeline.On the whole, flange termination valve is because the well-known leak-down rate of this Placement is brought serious environmental problem.The pollution of atmosphere ban is just guided factory into reduce harmful volatility releaser road.

(i) remove beyond the worry of volatility releaser and safety of workers in chemical industry, need not take off the method that just can repair easily to whole valve from pipeline if having, many factories can be happy to valve is welded on the pipeline rather than with flange plate and connect.Dismounting and re-shipping charges that flange plate connects valve are the parts of cost maximum in the repair procedures.

The main purpose of valve of the present invention is to make rotary valve to be downcut from the pipeline that it connected, and unclamps or pulls down to take out behind the bolt and just can carry out field stripping and assembling becomes possibility.Another advantage is that the leakage that influences environment and the fire peril at valve pipe joint place can be by being connected as a single entity valve and pipeline, and the main way of welding of utilizing is eliminated.Rotary valve reaches best assembling effect by inner body is axially assembled in order along liquid stream.When valve is loaded onto, to reach this best assembling need pull down valve or use a kind of apart from valve inlet liquid flow path direction turn flow channel enough far away can make things convenient on the aperture position that liquid stream shaft element installs so that liquid stream axle is arranged in.The turning round of rotary valve flow channel (is cost with the liquid current capacity) that is used to simplify spot repair is the elite place of angle entry rotary valve (AERo).

As previously mentioned, the fluid diversion in the AERo valve can occur in the valve body entrance and exit liquid flow cavity, also can occur in the removable component that is called DVC (drop valve parts).This paper also flows in the part of chamber to fluid, rather than in DVC, the embodiment that turns to.The embodiment that is called " fluid diversion embodiment " that will narrate below focuses on the function of DVC and valve part on one's body the unitary element.

In addition, the embodiment that also narration is called " pressurization disk positioning work piece ".

Purpose and advantage

It is a principal object of the present invention to be connected and just can carry out spot repair and improve its superior assembling mode and the very tight ability of closing by making split type and side entering type rotary valve need not to open pipe.Therefore, the present invention has following several relevant purpose and advantage:

(a) opposite with flange plate connection or clamping connection, a kind of valve body design that is solded into pipeline is provided, this kind design makes valve become as a whole with pipeline, thereby has eliminated the possibility that flangeseal lost efficacy.This will strengthen the Security (especially flowing through the place of danger medium in pipeline) of factory greatly, save maintenance cost, reduce the discharge amount of the environmentally harmful volatility releaser that the leakage owing to the bolton flange plate causes.

(b) provide a kind of formula high-pressure ball valve and fly valve of being solded into, such valve not only has a readily removable discoid or spherical closing element, and is a kind of like this valve, and valve seat can be removed before closing element really whereby.

(c) but offer high-pressure ball valve and the unprecedented repair ability of fly valve thus, owing to be detachable valve seat, the repair process of valve seat (being the best part consuming time in the valve repair procedures) is as rough turn welding, postweld heat treatment, turning of grinding postwelding and grinding all can be carried out in repair shop and needn't carry out in factory or scene.In repair shop, can carry out this type of labour intensive process and will improve the overall Security in work-yard, obtain repairing quality preferably, and accelerate the Repair cycle and need not to use special-purpose portable mechanism instrument.

(d) online repair type valve seat being provided for ball valve and fly valve, is a kind of method of being taken time under the following situation that reduces:

1) in the radioactive environment, as in the nuclear power plant,

2) some zone of factory, this district have harmful or lethal chemical material.

3) awfully hot or terribly cold field repair place.

Because when the valve that is used for dangerous situation was opened repairing, exposed surface or potential exposed surface increased greatly, this purpose has the meaning of particular importance.But having to carry out the on-the-spot reconditioning work of valve seat on a large scale under this environment is a very urgent tedious job.

(e) provide a kind of online repair type valve, it need not to promote or upset the action of valve, and pipe valve is not manual, and is pneumatic, electronic still hydraulic pressure.This benefit will make things convenient for fast repairs, and need not emit the action of destructive valve or the danger of action annex in disassembly process, and these action annexes have hold down gag, positioning work piece, current limit switch, calibrator, filter and solenoid etc.

(f) in the liquid chunnel of any revolution form valve of containing for the present invention, one or one group of overlapping multistage aperture provide a dismounting position easily.These apertures can play the reduction noise, reduce the effect of cavitation erosion and control liquid stream.

(g) provide a kind of formula of being solded into float ball type valve and revolution axis type ball valve, this valve can be with coming dismounting easily with the pressure spring carrying guidance of present use or the identical way of upstream valve seat.This target is that the way by the bolt of backing out fastening passway part realizes that this bolt is positioned at the downstream side of valve seal element; Rather than the danger of attempting to use from the valve top way that the interference Sealing is pressed in the valve, this method to emit to destroy part and valve in use to lose efficacy at once.

(h) provide the angle entry rotary valve of another kind of form, this valve can be installed in the pipe bend crook except that above-mentioned all purpose and advantage, this will provide less new structure welding (because valve and elbow crook are same parts, only needing two weld seams rather than receipt); Compacter piping design (very satisfactory in the high liquid of solid content stream, as to transport the pipeline liquid flowing resistance of the requirements for pipes minimum of this liquid); Elbow is curved to be checked and pipeline interface (clean-up port); Last but be not least important, elbow is bent abrasive element, and this element can be repaired or change.

(i) provide a kind of assembly and disassembly methods, can dismantle easily in this way soft valve seat float ball valve light (elasticity) sealing gasket and can emit when soft valve seat being pressed into the danger that recurrent sealing gasket damages when heading in the type valve.

The accompanying drawing summary

The more characteristics of the present invention will be set forth in conjunction with special embodiment of the present invention in the narration below, and these embodiments are shown in the drawings, embodiment only with form for example but not limited form provide, wherein:

Fig. 1 is the decomposition view of partly cut-away of the critical piece of angle entry rotary valve (following refer to the AERo valve), has shown valve body, the valve part, valve seat, york piece, operating mechanism, stuffing box, the exclusive part-downstream valve part of bar and AERo valve (following refer to) with OVC.DVC, its upper-lower seal circle and nut decompose part in the drawings and are illustrated;

Fig. 2 is the cross-sectional view when part assembles among Fig. 1;

Fig. 3 is the cross-sectional view of the flange dish-type DVC of bolton;

Fig. 4 is that the flange dish-type DVC of bolton sees front view in the past from the 3rd liquid stream axle;

The separated screw thread that Fig. 5 has a wiper seal DVC is connected into the cross-sectional view of valve seat;

Fig. 6 is " straight tube valve body " cross-sectional view with fly valve element;

Fig. 7 is the bivalve seat, and the cross-sectional view of revolution axis type ball valve, this valve have the bottom DVC sealing gasket that a screw thread is connected into a formula DVC and a metal to metal, and do not use elaxtic seal;

Fig. 8 is and the float cross-sectional view of ball of the similar bivalve seat of Fig. 1 and 2 that the both sides of this ball all have seal arrangement;

Fig. 9 is the cross-sectional view with " bend pipe valve body " AERo valve of butterfly element;

Figure 10 is the partial sectional view of interpolation part of the downstream liquid flow port liquid flow-control element of upstream dress valve seat, rotating shaft spherical valve embodiment;

Figure 11 is the cross-sectional view of first preferred embodiment major part when closed position of straight tube AERo valve; This figure also illustrates the compact disk device that is used for fixing;

Figure 12 is the cross-sectional view of first preferred embodiment major part when the enable possition of straight tube AERo valve;

Figure 13 is the cross-sectional view of first preferred embodiment major part when the enable possition of bend pipe AERo valve, and wherein main liquid stream is gone into from the valve underflow;

Figure 14 is the cross-sectional view of first preferred embodiment major part when the enable possition of bend pipe AERo valve, and wherein main liquid stream flows into from the valve side;

Figure 15 is the front view of second preferred embodiment of straight tube AERo valve, and this valve is because the profile of part makes its action element and interface be positioned at the center of different vertical planes;

Figure 16 is the top view sectional drawing of second preferred embodiment of straight tube AERo valve, and the action element of this valve and interface are positioned at the center of different vertical planes;

Figure 17 is the front section view of second preferred embodiment of straight tube AERo valve, and the action element of this valve and interface are positioned on the Different Plane;

Figure 18 is the item view that valve body holds compact disk device zone;

Figure 19 is the front view with AERo valve of compact disk device.

Number in the figure table 10 valve body 11 valve parts 12 downstream valve parts (DVC) 13 downstream valve seats

The 13a screw thread is connected into valve seat

The 13b screw thread is connected into the valve base sealing pad

The valve seat 14 upstream valve seat guidance 15 valve seat guidance springs 16 bottom DVC sealing gaskets 17 lower beam axle 16a metal to metal DVC seal area 17a lower beam axles of 13c bivalve seat valve

17b upper boom axle

Bottom DVC seal area 41 valve block internal diameter middle and lower part DVC in the second axle 40 valve block internal diameters of the 3rd fluid course 39 bend pipe valve bodies of one section bar axle of 17c, 18 top DVC sealing gaskets, 19 valve body bolts, 20 first cylindrical channels, 21 second cylindrical channel 22 first (pipeline) axles, 23 first barrel valve body cavitys, 24 second barrel valve body cavitys 25 the 5th cylindrical channel 26 the 6th cylindrical channel 27 the 7th cylindrical channel 28 second (main valve body) axle, 29 shaft coupling 30 the 4th (DVC) axle 31 the 5th (outlet) axles, 32 york pieces, 33 valve operating mechanism 34 the 3rd (closing element) axles, 35 rod seal glands, 36 sealing gland bolts, 37 stuffing-boxes, 38 bend pipe valve bodies

The top 44 bottom guidance of the bottom 42 bottom DVC internal diameter seal area 43 bottom DVC seal areas of sealing gasket are connected 53 planar wall 54DVC elevator bolt holes, valve body chamber (tapping), valve seal district 55 gudgeons, 56 gudgeons lid (bolt connections) 57 pressure rings 58 wiper seal space collars, 59 combined type locating rings, 60 wiper seal jack-up dish 61DVC lifting holes (tapping) of upper seal area 49DVC channel outlet hole 50 valve internal channel 51DVC flanges, 52 top DVC of bolt hole 47 valve outlet channel welds 48 ring flange DVC of DVC of indent external diameter 46 ring flanges and are used for pressure with gland 45DVC

Power sealing and thread seal 62 valve body strengthening rib 63 Flexible spanner hand holes 64 screw threads are connected into formula DVC positioning work piece 65 screw threads and are connected into formula DVC positioning work piece weld seam 66 pressure resolution elements 67 associative ring valve body recess 68 screw threads and are connected into formula DVC positioning work piece bottom 69 upstream valve seats and support circumferential zones

The valve seat of 69a 69

Valve seat supporting external diameter sealing gasket 70 bar ball groove positions 71 butterfly element sealing gaskets above the 69b

71a butterfly element sealing gasket positioning work piece

(bolt connection)

71b butterfly element sealing gasket positioning work piece

Bolt 72 flow diversion valve element 73 valve gaps, 74 first steering component fluid course 75 second steering component fluid courses, 76 guidance 77 pressurization disk, 78 pressurization disk screwed hole 79 forcing screws, 80 forcing screw nuts or nut 81 valve body slits 82 pressurization shoulders 83 valve bonnet seal parts 84 valve gap guide tracks 85 valve seal grooves 86 valve body working chambers 87 first fluid courses 88 second fluid courses 89 pressurization retaining ledges

Invention and best implementation model describe in detail

Angle entry formula revolution (AERo) valve has three kinds of main embodiments, every kind of scheme must with around make liquid chunnel curve with adapt to the valve closing element in pipeline (in pipe) this notion of easy-maintenance and the various design proposals of carrying out are relevant.

First kind of embodiment is straight tube or bib valve, shown in Fig. 1 to 2 and 5 to 10, shows among the figure with pipeline liquid stream to require relevant main valve body type.These embodiments are called " valve body embodiment ".Second kind of embodiment is relevant with the liquid current control or the liquid stream isolated component of valve, and promptly the rotary sealing element is the ball of floating, the revolution axis type whole world or part ball, still the butterfly element, still be float ball or flow control valve of soft valve seat.These embodiments are hereinafter referred to as " valve element embodiment ", shown in Fig. 1 to 2 and 5 to 10.Last group embodiment all or part of illustrating in institute's drawings attached.This prescription case is called " downstream valve parts (DVC) embodiment ", with the function of this main valve member and the distinct methods of its AERo valve body of packing into is relevant.

Can obtain fully understanding of diagonal form entry rotary valve complete characteristic with reference to Fig. 2.All the other each figure illustrate the present invention and want the multiple embodiments that contains.

Fig. 2 shows ball formula AERo valve of typically floating in " straight tube " valve body embodiment, has wherein curved 45 along the cylindrical or conical liquid chunnel 20 of first 22 be roughly and has formed along second liquid chunnel 21 of axle 28.Liquid stream in the passage 21 flows through seal element 11 and enters DVC12, curves with three cylindrical passage 26 at this place's liquid stream to be communicated with axle 31 and second 28 one-tenth about 90 ° of angles of this passage.Then, passage 26 curve about 45 ° make liquid stream flow through passage 27 can be to first 22.The liquid chunnel angle of cut in the straight tube valve body embodiment can be very big.Fig. 7 is illustrated in passage 20 and 21 intersection's angles are about 25 °, is about 70 ° at passage 21 and 26 intersection's angle in DV passage 25, in this passage 25 that occurs in DVC that crosses, is about 45 ° at passage 26 and 27 intersection's angles.

It can be mitre joint at 45 that the passage of every axle intersection curves, or the preferred embodiment shown in Fig. 7 and 10 is such, is rounded to a kind ofly can make liquid stream flow through the turbulence effect that valve body produces to reduce to minimum profile.

The second valve body embodiment, be called " bend pipe valve body ", be shown among Fig. 9, wherein along first 22 first roughly cylinder or circular cone liquid chunnel 20 extend forward, enter in the downstream valve body component 12 by seal element 11, in these parts, liquid chunnel takes place 45 ° or 90 ° and curves in passage 25, with along axle 29 second roughly cylinder or conical liquid chunnel 38 intersect, passage 38 joins with pipeline, no longer takes place further to curve.This valve body embodiment can be used in has 45 ° or 90 ° of positions that pipe bend is curved.

The third also is the valve body embodiment of " special ", be the liquid chunnel angle of cut also or the number of liquid chunnel also or the length of liquid chunnel can be changed with the big relatively increase and decrease that causes the flow of fluid coefficient or influence fiting effect in valve and the tube opening size that reserves.

Valve shown in Fig. 6,7 and 9 illustrates the preferred valve body embodiment that the monobloc forging valve body is cast in cast inblock or forging and pressing, and this kind valve body has enough wall thickness, with the industrial standard on the border of satisfying pressurized and adapt to joint stress limit.The sizable wall thickness that Fig. 7 is presented at liquid chunnel 25 and 26 intersections increases, and carries the place that stress is concentrated maximum because this place is a pipe, Fig. 1, and valve shown in 2,5,8 and 10 has the valve outlet port passage that is welded in 47 places.This is that another construction method is particularly more suitable to the valve of unusual size.After outer pipe is sealed on, in order to increase body strength, can add the outside that truss web formula member shown in embodiment among Fig. 5 comes connecting passage 26 and 21, this member is normally used with the valve body same material and is made.At last, with regard to the valve body profile when the pipe-line system that valve is installed can directly adjacent with DVC waste side main valve body directly links to each other the outer pipe of weldering system can together remove.This can be by using 45 ° of elbows curved for the valve with identical entrance and exit center line, or use straight tube to realize for bend pipe valve design shown in Figure 9.

The valve that this document is contained will submit to the various methodization valve body standards of formally recombinating by industrial Manufacturing Instruction, and the preferred embodiment that is used for the AERo valve is connected into pipeline can realize by the method for slot welding or butt welding according to the B16.25 standard of American National Standards Institute.And valve can be flange plate connect, ring-like joint, the thin slice valve body, the band lug, or clamp connect but be the connection of style end, or any feasible joint Connecting format.The valve body wall thickness will with ANS γ B16,34 1988 standards are consistent, have the rating value of following grade: 150,300,600,800,900,1500,2500,4500, and in the middle of in all allow pipe dimensional ranges, being provided with, limited and special grade rating value.To with given operating conditions, valve body material can be selected by customer requirement.Common used material is a low-alloy carbon steel, stainless steel and nickel and nickel alloy.

Used diversified york piece design form and valve operating mechanism in the art, these forms are well-known in the art.Operating mechanism comprises the operating handle 33 among Fig. 7, handwheel, turbine, spur gear and helical gear, motor, and according to operating conditions with just handle torque demand and give suitable design, pneumatic and hydraulic unit etc., remove Fig. 3, typical stem shaft (17 among Fig. 2 and 32) and stuffing box (37 among Fig. 2) that the every width of cloth figure beyond 4 all will use install.Structural material can change according to the requirement of operating conditions.Typically, when with the valve that is exposed in the liquid stream, surpassing 450 Fahrenheits, will in stuffing box, pack into graphite and/or carbon filler and compacting, and PTFE or other suitable material will be used under low temperature or the freezing operating conditions.

Front narration AER _o, mentioned DVC during the liquid chunnel of valve.The embodiment of DVC is as Fig. 1-4,6 with valve passage 50, the bolton flange plate jointing type shown in 8 and 10, still as shown in Figure 7 screw connected, still wiper seal formula as shown in Figure 5 and change.Passage flows linear axis 22 that end farthest apart from liquid on axle 28.

Fig. 3 and 4 is details that bolton flange plate type DVC embodiment is shown, and this scheme is integrated into parts to four major parts.Therefore need to name sb for the new parts of " DVC ", this name can be described these parts more rightly at AER _oThe multiple function that is had in the valve.Three parts of DVC are the valve seats that all can find in each known valve almost, valve seat and valve seal spare and valve gap.The 4th part is that liquid stream curves passage, and this passage and DVC become one, the part of normally overall isolation and control valve body liquid chunnel, but be not the part of multi-functional inner member.In the embodiment of all valve bodies and valve element, passage 25 is communicated with the liquid chunnel of axle 21 and 26 to realize from being the axle 28 continuous flow of fluid to pipeline liquid fluid line axle 31 that the valve maintenance is established.This passage can be Fig. 1, the cylindrical cavity (corner connection at 45) that intersects shown in 2,8 one of them, or Fig. 3,5,6, the arch chamber of the substantial cylindrical shown in 7,9.

Preferably be threaded and be with wiper seal DVC embodiment is connected embodiment with flange plate difference: the valve seat among the wiper seal formula DVC separates with main DVC, and screw connected DVC uses a threaded positioning work piece that DVC is packed in the valve.Because in installation process, upwards promote DVC and can make and sealably cooperate required power lax DVC seat and valve element, so in wiper seal formula DVC, need a kind of discrete valve seat.Because threaded positioning work piece can make the manufacturing of DVC simplify, therefore be connected into the most handy threaded positioning work piece 64 among the formula DVC (plug or dish) at screw thread.This design has been arranged, just easily guaranteed after being screwed into valve body fully that at DVC DVC liquid flows out the concentricity between oral pore 49 and the contiguous liquid chunnel 26 thereof.

Wiper seal formula DVC can be clamping type (a Greylocy formula), also can be as shown in Figure 5 in the preferred embodiment, promotes hole 60 usefulness bolts from DVC and passes fixing.The appearance of pressure seal is well known in the art as flange plate.By against spacer ring 58 and combined type positioning ring 59 pulling DVC12 and seal rings 57 thereof, seal ring 57 is inserted in the whole circumferential recess 67 on the valve block internal diameter, and AERo valve passage mouth is just sealed.When pressure seal arrangement is used for the downstream valve parts, to separate lasso 130 preferably uses bolt (belt material pad 136) to be connected into, be connected in the internal diameter of valve body 10 with screw thread and liner being solded into the internal diameter of valve body 10 or resembling in the preferred embodiment shown in Figure 5 and go, to realize and being communicated with and compression gaskets of the closing element of rotatably arranging 11, prevent from the leakage of the generation of the passage between seat ring 136 and the valve body 10.Pressure-tight downstream valve parts can together use with all various forms of valve bodies as herein described and valve element embodiment.

Except the method for sealing channel mouth 50, screw thread is connected into formula DVC and bolt, and to be connected into formula DVC identical.Darker and lower position in valve body, DVC seal valve tagma, top 52, as shown in Figure 7.It also attacks screw thread to adapt to the pressurization function of positioning work piece 64.The sealing gasket 18 of preferred embodiment adapts to work requirements and is made by nonmetallic material.In the preferred embodiment.A kind of compacting pressing positioning ring is loaded in the circular valve inner groovy of positioning work piece 64 tops, and positioning work piece is locked in its design attitude, another locks embodiment, as shown in Figure 7, is a spotweld 65 to be set positioning work piece is linked to each other with valve body.In the preferred embodiment bottom of positioning work piece be flat or be equipped with one that normally make and the thin propulsion device of same diameter is arranged with threaded limit plug (dish) with same material, be used to provide the straight axial compression of top DVC sealing gasket 18.Positioning ring bottom circumference 68 protrudes the very little gap of a diameter slightly in sealing shoulder 52 bottoms, clamp-ons valve body to prevent sealing material.Therefore weaken the validity of sealing.Positioning ring 64 is threaded into AER _oThe distance (utilizing driving hole 63) that valve body 10 1 limits, 50 places record from valve body top this distance in the passway.This distance will guarantee that upper and lower DVC sealing gasket is sealably compressed, and then guarantee no matter valve seat, use any element embodiment can reach this effect if being positioned to realize sealing function.

In order like a cork DVC to be taken out from valve with threaded positioning work piece, can bore an aperture 61 and attack screw thread in the DVC top center, wherein can load onto a threaded lifting bolt, when down getting DVC, suspension ring can be penetrated lifting bolt in order to being that DVC is pulled up from valve body.Naturally, suspension ring screw thread and suspension ring can be used to re-assembly.Large valve body may need more than one lifting bolt.

The angle that liquid chunnel is turned in DVC can require and the variation of the distance at valve two ends changes with overall flow.DVC passage 25 inside can have the form that diameter successively decreases gradually or increases progressively, and also can have significant vary in diameter.The latter may be used to the operating conditions of very severe, under this kind condition, causes a big pressure to fall in DVC outlet 49, and the diameter of passage 25 will just reduce widely in the place that does not stride across valve seat and valve element.When flowing through the high speed corrosive liquids in the pipe, especially be used for the time expand section in 25 percent during of closed position when valve with interior work, above-mentioned design can reduce the damaged condition of valve seat and valve element being closed sealing surfaces.

Except valve base surface, material that uses among the DVC and valve body material basically identical.This district will comprise a kind of soft packing, as PTFE; Or comprise a kind of hard material, as overlay cladding or sprayed metal coating.For the abominable operating conditions that has very high corrosion strength, can cover one deck layer or thermally sprayed coating at liquid chunnel 25.

" downstream " speech refers to flow through first passage 20 when MEDIA FLOW in DVC, and behind second channel 21 and the valve closing element 11, valve is exposed to a side of MEDIA FLOW." downstream " speech is used in reference to when the main liquid flow path direction when a direction (unidirectional) flows of liquid stream.Yet this speech also can be used for describing parts, in addition when flow of fluid be both direction (two-way) in pipeline when carrying out also available " downstream " parts are described.Valve among all figure except that Fig. 1,2,5 all is two-way, and the valve among Fig. 1,2,5 is unidirectional, but can become definite shape with on the external diameter of the upstream valve seat guidance 14 of packing into and the valve seat shoulder of guidance ring in the valve body 14 with the valve body joint be provided.

With reference to Fig. 1, valve inner comprises two cylindrical cavities 50 and the 46 and the 3rd chamber, and top DVC seal ring 18 is housed in the 3rd chamber 52.The 3rd chamber can resemble Fig. 1～3,6, and such chamfering or rounding are to hold metallic packing ring 18 shown in 8～10.Fig. 5 illustrates a kind of traditional wiper seal design.In addition, chamber 52 can be pressed into flat holding liner, or is elongated and attacks the DVC of screw thread with accommodating belt screw thread and liner.

With reference to Fig. 2, closing element (ball) 11 is housed, upstream valve seat guidance (surface has the ring of a rounding, and this rounding ring passes to mutually with ball element and guarantees the desirable straight line centering of ball) 14 and closing element guidance (dish type) taper loading spring 15 in first chamber 50.The downstream valve parts are housed in the second valve body chamber 24 and go up sealing gasket 18 and lower seal pad 16.Shoulder 41 is the separatrix in two valve body chambeies.

DVC among Fig. 3 and 4 has a cylindrical parts that changes external diameter, and the external diameter of these parts changes and is and passage flap (integral (type) flange dish) 51, changes passage 45, and bottom guidance and gland 44 and lower seal pad internal diameter locating face 42 adapt.The valve seat that is communicated with closing element is as shown in various ball valve figure, and is rounded so that match with the ball surface, and if the castellation closing element, this valve seat can be fillet or cone angle.Load on the valve seat depends on that DVC is loaded into behind the valve body and passes the overall evagination degree that puts in the first valve body chamber 50 from the second valve body chamber 24.

In preferred DVC embodiment, lower seal pad internal diameter locating face 42 provides the sealing height of 1 to 5 times sealing gasket sectional dimension for molded graphite annulus or polymer basic ring 16 (being that this material depends on operating temperature and other condition).The sealing gasket sectional dimension is calculated by following formula:

ID=internal diameter OD=external diameter

Anti-extrusion rings can be installed in the top of bottom DVC sealing gasket, or go up and produce and the bottom, to prolong the life-span of sealing gasket, this ring is made with weaving carbon or teflon etc. usually, or is made by compressed web any in the many braided metals that adapt with operating conditions.And, having the center ring that separates anti-extrusion rings by one and replaced bottom DVC sealing gasket, anti-extrusion rings can be to be formed at the interior mould of center ring so that sealing gasket is an integral body.The ring huge with integral body is opposite, and center ring also can be the stacked of some rings.Stuffing box shape sealing gasket is designed to sizable sealing pressurization and creates conditions, to guarantee the reliable long term seal on possible minimum diameter, thereby alleviated and enlarge valve diameter holding the demand of spirality liner, this liner needs a broader sealing surfaces on the plane vertical with DVC loading axis 28.This stuffing box shape sealing gasket also has more deformability in this Sealing, therefore need a pressurized source 19 to be engaged in two different sealing stations simultaneously, i.e. the top DVC sealing gasket 18 of " towards atmosphere " and the bottom DVC sealing gasket 16 of " behind the valve seat ".The lower seal pad internal diameter locating face 42 and the first valve body chamber are overlapping, and diametric clearance that should the place and the diametric clearance between the second valve body chamber 24 and bottom guidance and the gland 44, divide clamping with the lower seal pad of downstream valve parts.

Another embodiment of DVC is that bottom DVC is directly cooperated with valve body, to form the metal to metal seal contact of one 360 degree.Stainless steel or other suitable DVC material or hard-surface coating are essential to integrity and the durability that guarantees these sealing surfaces.Suppose that some overlapping requirement of a bottom DVC fitting surface can use for many years, and any so overlapping surface of contact that will make seals, top DVC sealing gasket 18 must be graphite or elastomeric polymer ring and can not be metal ring, to adapt to the increase of the reduced size that causes owing to overlapping lower seal pad.Thereby guarantee that lower metal will become the part of General Maintenance process to the size relationship of metallic gasket and DVC seat.The interpolation of valve body or DVC material and removal may need to reset all important Sealings and the size relationship of valve element and valve seat.

Another embodiment of DVC is used for upstream dress valve seat valve, as shown in figure 10.DVC does not play Sealing behind valve seat or the valve seat in this scheme.Therefore, it does not have valve seat or bottom DVC seal area.

The DVC external diameter 45 of bottom guidance and gland and valve cover chamber is reduced so that the adhesion in the DVC disassembly process minimizes.As shown in Figure 7, by resembling, reduce the DVC outer surface widely with the method that is complementary with liquid chunnel and increase ribs for surperficial appearance to guaranteeing that the DVC structural integrity reduces wall thickness desired.

The exit orifice 49 of downstream valve parts is roughly rounded or oval-shaped holes, if but application request when changing the liquid stream pattern of valve, this mouthful can be multiple shape.

The operating method of DVC

In the valve in one uses, DVC is a fixed component.In all AERo valves, towards the direction that connects downstream line, this passage has provided the axial passage that leads to part in the valve to DVC the liquid chunnel replication, specifically, is that removable pressurized border components makes and leads to that part becomes possibility in the valve.The sealing function of DVC depends on to use which kind of element embodiment and DVC whether to have this 2 point of valve seat to a great extent.

In the single valve seat shown in Fig. 1,2,5,8 and bivalve seat are floated ball valve and bivalve seat revolution axis type ball valve shown in Figure 7, DVC 12 is provided at the required compressive load of ball that suspends in the ball valve of floating, this load also be simultaneously make match in the downstream valve seat of valve element and float valve valve seat and revolution axis type ball valve necessary.In the wiper seal embodiment of Fig. 5, the seat ring 13a of separation plays the effect of hanging downstream ball and loading.In the valve that single upstream valve seat is housed shown in Figure 10, DVC plays the effect of passage flap and fluid diversion element.In Fig. 6 and fly valve shown in Figure 9, DVC had not both played the effect of hanging ball, did not play pack into the effect of valve seat of disk yet.But it but provides the fixing circular fitting surface of sealing with it for the disk element.

The operation of valve body embodiment and detailed description

Repair operation/the method for all AERo valve embodiments is all different with any other rotary valve.It has all best characteristics of the formula of heading into and split/side entering type.Except with pipeline axle at an angle on the place under repair, the repairing of AERo valve is identical with the repair method of split type valve and side entering type valve.In typical embodiment, DVC 50 is taken out from the passway, and all valve parts that need take out when repairing all can be installed again from this position.After the repairing of necessity finishes, DVC is inserted AERo valve body chamber again from AERo valve passage mouth 50, and be positioned bar shaft connection place (70 places of ball type valve with seam) and alignment, so that DVC liquid stream floss hole 49 is in alignment with the valve body liquid chunnel along the axle 39 of the axle 31 of straight tube valve and bib valve.

Before DVC installed, bottom DVC seal ring 16 was positioned 42 places by careful being enclosed within on the DVC, and top seal ring 18 is installed on the surface 52 of matching of valve body.(be threaded and wiper seal DVC embodiment in, top DVC sealing gasket can be installed after DVC puts into valve body.) next, DVC is placed into valve body and is fixed on its fixing position that is arranged in valve body cylindrical cavity 23 and 24.Be connected 54 places of DVC51 with flange with the top center 61 of wiper seal DVC being threaded, relative through hole and tapped hole serve as the immovable point that (eye) bolt or stud bolt are arranged, and have been connected into the suspension ring that the dismounting, repairing and the refitting operating process that are used at DVC promote DVC in this kind bolt.

Use ball valve and fly valve is controlled or insulating liquid stream is well-known in the art.Valve be based on fluid wherein feature, fluid ability, close the degree of ability, valve body pressure nominal value and user select for use the acceptance of various designs.If the valve made from " straight tube " AERo valve body design has with split type, side entering type or head into the equal inside liquid flow diameter of formula valve (hereinafter referred to as tradition (revolution) valve), this valve will have compares the fluid ability that has reduced with conventional valve.This is because compare with a liquid chunnel of conventional valve, and many liquid chunnels are arranged in the AERo valve, and the frictional loss on these passages has reduced fluid ability.In some real work occasion, owing to usually wish to have the minimizing of flow, this less comparatively speaking flow reduces can not cause serious consequence.In other occasion, need to enlarge the inside liquid chunnel of AERo valve to obtain big flow coefficient.The AERo valve of making by " bend pipe " embodiment shown in Figure 9 is unlike having equal length, and the pipe bend of radius and internal diameter is curved to make more that the straight line liquid flowing rate reduces.

Different with conventional valve, " straight liquid flow tube " AERo valve rod 17, york piece 32 and operating mechanism substrate (top piece) will be in pipe-line system plane at an angle on, and not with the plane of pipeline equality on, and " curved liquid flow tube " AERo valve will have the top piece orientation identical with conventional valve.In the horizontal pipe device, the operating mechanism of several angle is arranged, and no matter how minimum to the convenience influence that opens and closes valve valve liquid flow path direction is, especially as shown in Figure 7, when helical gear or worm gear operating device were housed on the valve, the handwheel of this mechanism faced the people with valve rotation direction desired location.In the vertical tube device, when liquid upwards flows, non-gear control valve will be worked as flow to the Y type ball valve that following time is directly used in handwheel or the stick control of T type at liquid, make handle surface towards ground inclination.In the vertical tube device that liquid is downward through, as the boiler of industry and power station, particularly the same in the water cooled furnace wall drainage means, some upwarps slightly and makes the AERo valve provide a work angle easily to the operator owing to handwheel.Angle from ergonomic, this is to people Lai Shuoshi one preferred handwheel position, because this position makes the operator can use his or her whole health to come rotary valve, rather than when requiring to apply a plurality of valve element of high rotation torque as rotation, can only be with strength with upper half part of health.

Use the rotary valve of AERo valve body to form by perfectly round a ball or a fly valve disk element with corrected ball, a classification ball (having), band V-shape hole at certain the widest position outer surface close with the valve seat outside dimension.These elements turn over about 90 ° from full open position to complete closed position, vice versa.Yet some valve may be crossed the angle less than 90 °, and other valves are in its normal turn over nearly 180 ° or bigger angle in service.

The formula of floating AERo ball valve among Fig. 1,2,5 demonstrates the layout of typical valve part, promptly in the cylinder valve intracoelomic cavity 23 disc-shaped element loading spring 15 is housed, and this spring directly is communicated with the upstream side of plane upstream valve body wall 53 and upstream valve seat guidance 14.Round downstream valve seat is led together with ball 11 suspensions with having in that side relative with the rounding end of upstream valve seat guidance 14, aims at the center of the axle 34 of valve rod 35.Preferred embodiment middle and lower reaches valve seat shown in Fig. 1 and 2 is not a spring load.The downstream valve seat can be used elasticity PTFE class material, or the hard surface material liner is arranged, can also this liner be the layer of surface high hardness material that directly is added on the valve base surface parent metal as illustrated in fig. 1 and 2 as aforesaid, thereby looked as a whole with valve seat.Cup spring 15 provides a preload force to be used under low working pressure ball being fixed on valve seat.After the suffered line pressure of upstream side of closing the closed state ball had surpassed the added power of spring, spring lost efficacy as a kind of loading force, and valve is realized sealing by use the uneven line pressure that is acting on the exposed surface of ball element upstream side.In the formula ball valve of floating, in a single day medium has flow through valve seat, and just the liquid chunnel 25 along DVC flows forward, and liquid stream is diverted directly to be communicated with (bib valve) with pipe-line system or to be connected with another passage that links to each other with pipe-line system in this passage.

Show typical butterfly AERo valve element embodiment among Fig. 6 and 9.Fig. 9 medium stream longshore current moving axis 22 flows into the first passage 20 that directly is connected with valve element 11, or resembles and turn to shown in Figure 6, and to be connected with second liquid chunnel, this passage and valve element 11 and DVC12 are coaxial.Different with many ball valves of springs preload that require, fly valve only relies on the valve element is installed to moment of torsion on the valve seat.This loading moment of torsion in high pressure valve usually by making disk 11 have a side-play amount to realize increasing with respect to axle 17, thereby cause the cam effect of valve element 11 with respect to valve seat 13.The appearance of valve element and valve base seal can change with the variation of operating conditions and user's history.Typically, use rubber on the valve, the elastic seat material of high polymer or graphite-based, thus make the valve element keep a kind of elastic packing state, and valve seat or make by valve body material, or a kind of more durable metallic coating is arranged.Owing to following reason, the preferred embodiment that seal arrangement is the AERo valve of closing of metallic coating is arranged.

AERo fly valve shown in Fig. 6,9 also has a DVC valve seat 11 with the valve among Fig. 1 is the same, and this valve seat will be used as a conventional part of repairing dismounting and be removed.Different with the ball design of floating shown in Figure 1, the dismounting of fly valve element will require gudgeon is removed, remove not element 11 (rather than in the fly valve common valve seat) and have a clamped elasticity and close Sealing 71, and the ball element among Fig. 1 can be by dial-out (being gone to closed position by wheel so that slit in ball and the bar axle 70 and liquid chunnel centering at valve) from valve immediately DVC is removed after.

It should be noted that fly valve be inherently revolution axis type install because need provide a device to install back rotating shaft, so that the circumferential sealing of valve element 11 surface and valve seat 13 can repeatedly mate realizing the control and the isolation features of valve liquid stream, the disk element is (and peg or securing with pin) that runs through an installation of element with two sections axle shown in Fig. 6 and 9 or.

Clamped element Seal Design has been arranged, and valve element and gudgeon can not be interfered in the repair procedures of valve closing element.In case DVC is by 50 taking-ups from AERo valve passage hole, the machine shop worker just can back out and be used for element seal ring 71 fixing clamping bolt 71b (normally Allen bolt) on the throne.Then, element sealing gasket 71 replaces by refurbish or with Xinmi City's packing.Valve seat 13 is repaired outside valve body.Be pointed out that as all AERo valves it all is unwanted that valve is backed out the operation that is screwed to again on the pipeline after bolt takes out and fixes from pipeline.If gudgeon needs inspection, when changing bearing 55 or carrying out other repairing, can be from foot passage mouth 56 with its taking-up.The design of gudgeon and tearing open/the dress method is well-known in related domain.

Another embodiment of AERo valve body valve is the revolution axis type ball valve shown in Fig. 7 and 10.In the revolution axis type ball valve, valve element rotation foundation 55, this post play the effect of supporting valve element to a great extent and provide a kind of the valve element is contained in a method on the axle, and this axle makes valve seat and realize sealing with respect to its motion.Different with the notion of the ball of floating, gudgeon formula ball valve relies on the formula valve seat of floating.The reason that one external diameter sealing gasket 69b is arranged on the seat ring (supporter) 69 among Here it is Figure 11.In the process of ring with the increase of line pressure or minimizing campaign, the tight seal of external diameter sealing gasket 69b maintaining valve.Some revolution axis type design element partly has the little motion in emblem at foundation, so that valve not only has the advantage of load-bearing, also has floating to a certain degree.Valve among Fig. 7 has reflected this design style.Because as the ball of floating, it is moving that ball element is actually, and do not need the seat ring external diameter of motion is sealed.Therefore, there is not the external diameter sealing gasket in this seat ring.

The bearing function of gudgeon frees valve seat and upstream guidance from the task of supporting valve element, and has therefore reduced the required moment of torsion of control valve greatly.The manipulation that the reducing of moment of torsion makes valve is balance more, makes the smaller volume of manual gear, pneumatic, electronic or hydraulic control unit 33.On the super sized type valve that works under the high pressure, can reduce the manufacturing expense that the operating mechanism expense has also reduced valve generally with revolution axis type valve element.

Fig. 7 shows a revolution axis type element with bivalve seat, and Figure 10 has shown a revolution axis type element with single upstream valve seat.The valve of any valve body embodiment can have metal seat valve also can have elastic seat, depends on service condition equally.In addition, using between plane valve body wall 53 and seat ring usually and serve as the cup spring of pre-load means, so that this rotary valve is realized tight closing, even also is like this under low operation pressure.Revolution axis type valve element embodiment is well-known in the art, and no matter uses which kind of valve element embodiment, and the AERo valve is compared its easy-maintenance and all is significantly increased with conventional valve.Other valve element embodiment is different with all, and the repair method of closing seal element of revolution axis type ball valve will need the installation of gudgeon-ball is connected the additional step of taking apart.This step realizes by gudgeon lid 56 being taken off and gudgeon being transferred to from ball type device 11.In a single day gudgeon is removed, and the ball that has shaft-like groove can freely be pulled out valve body from AERo valve passage mouth 50.

At last, according to valve element embodiment, Fig. 8 illustrates a pair of valve seat valve seat formula ball valve of floating.The same this valve element embodiment with other AERo embodiment also is well-known in the art.The valve element is placed between upstream valve seat ring and the downstream valve seat ring, and this element normally stainless steel is done, and is coated with the chrome polish layer above or resembles the duricrust of Tungsten carbite one class.Seat ring can be made by multiple metallic material, and is wherein many celebrated with its corrosion resistance, as graphite, and the PTFE of PTFE and graphite impregnation.Selecting for use of valve arrangement material can in very large range be carried out.Provide any new valve body or valve surface metallurgical prescription, the synthetic of sealing material or material is not the intention of AERo valve design.The narration of relevant material has provided the general information of common used material, and makes the reader to the understanding of the related technology of AERo valve further.

With reference to Fig. 8, seat ring 13C is pressed in the groove of inner valve body plane wall 53 when not having groove (or be pressed in the planar wall 53), and by be loaded into as DVC 12 in the valve (with to the similar mode of installation end cap on split type valve) time compressive force that applied it is withstood on the ball.The assembling compressive force of DVC is served as the sealing loading force, this power under low linear operation pressure with line pressure with valve element and valve base sealing.In some design, the assembling compressive load can be overcome by line pressure.At this moment, the valve element is pushed to fluid flow direction, and is pressed in above the valve seat that is in the downstream with respect to pressure source.Therefore, load for the upstream face of ball type device in the closed position at medium, and often pass under the situation of the medium filling-valve body cavity of upstream valve seat after with supercharging, the downstream valve seat has just become to close the position.

The position that person of skill in the art will appreciate that position, keying element and the passway of spherical groove on the ball all can change in practical application of the present invention.Before how the position of narration part can change, understand when valve is packed pipeline into, it is relevant with the location of valve that to make its a part of term relevant with another part be very important.Because valve can be installed on the interior numerous spatial position of pipeline theoretically, the relative position of valve each several part and feature thereof will become and make us obscuring.For example, the columnar section of door type valve is roughly expressed the situation of valve rod when vertical position.But if valve is installed in the vertical tube, valve rod is exactly a level.Distinguish initial reference position and become very important, especially when narrating new design proposal.

Therefore, the reference position of the standard of using in the patent specification will be the vertical center line plane (VCP) of passing the horizontal pipe at valve place.This relative part orientation method only is just the using of classification, and does not limit the place and the orientation of AERo valve practical application.Along with various additional embodiment are constantly narrated, the use of reference position will be easier to understand.

Substantive characteristics for these additional embodiment of further understanding the AERo valve, we set forth with reference to Figure 11, Figure 11 is first preferred " liquid stream curves embodiment ", this scheme is used the ball-type AERo valve of floating in the straight tube embodiment, thereby turning over about 45 towards the first rotatable member liquid chunnel 74 along substantial cylindrical or the taper liquid chunnel 87 of VCP, liquid stream makes 72 rotations of valve element in passage 74.Liquid in the passage 74 circulated about 90 ° and vertical with VCP.Obtained and 360 ° of ring-shaped valve seats 13 contact by the spherical surface in the outside, valve element 72 downstreams of liquid stream driven rotary, thereby played the effect of cut-off valve.

The valve element 72 of liquid stream driven rotary is suspended between the downstream valve seat 13 and guidance 76 in the roughly cylindrical first valve body chamber 86.Guidance 76 is by 84 location of the circumferential recess in the valve gap 73.Valve gap 73 can be with above-mentioned any method, and as threaded insert connection, the connection of bolton flange plate etc. with as Figure 11,18 link to each other with valve body 10 with the method for the pressurization disk shown in 19.Figure 12～14,16 and 17 show the valve bonnet seal circle (pad or hole) 83 that is used to keep-up pressure between valve body 10 and valve gap 73.

Any spring appearance, as the cup spring of using among Fig. 1,2,5, can be used to with Fig. 1,2,5 same methods carrying guidance 76 and valve seat.Spring links to each other with valve body 10 with valve seat 13, and this valve seat is dismountable in preferred embodiments, and valve seat 13 is contained in 85 li of valve seat grooves that are roughly circumference.Revolution axis type valve upper valve base spring usually together uses with valve seat one valve seal spare, this kind valve requires valve seat-valve seal spare can move with the seal valve element, and this valve element is contained on the axle axis usually thereby can not resembles the formula ball type device of floating variation campaign with pipe pressure.Although this first preferred liquid stream rotation embodiment is not a revolution axis type, can use revolution axis type valve body and valve seat Sealing well known in the art, particularly when tube equipment requires to have two-way closing function.

Figure 12 illustrates the situation of valve when the enable possition among Figure 11, the second fluid diversion element liquid chunnel 75 among this figure in the flow diversion valve element 72 is located by rotary valve rod 17, the valve rod 17 and the first rotatable member liquid chunnel 74 are coaxial substantially, and the groove 70 that is inserted into element becomes the center of VCP.This position makes fluid be communicated with roughly cylindrical second valve channel 88, and this passage is connected liquid stream and pipeline junction.

Figure 13 and 14 shows the first preferred fluid diversion embodiment of the curved valve body embodiment of elbow.The main liquid flow path direction of the ball formula of floating among Figure 13 design is from the bottom up.If when liquid stream when a vertical tube upwards flows into the horizontal pipe that is attached thereto, this design will provide the best to close sealing.Main liquid flow path direction among Figure 14 is to vertical tube from flow in horizontal pipe.It should be noted that when sealing gasket 13b is positioned at the downstream side of main liquid flow path direction the position that opens and closes element 33 and bar axle 17 will change.This can move to reach the optimum Match of sealing gasket and valve seat 13 ball type device 72 along the liquid flow path direction.Should notice that these valves and downstream have the valve of valve seat identical.

Figure 15～17 illustrate the second preferred fluid diversion embodiment.Among Figure 15 and 16, the difference of this fluid diversion embodiment and above-mentioned first preferred embodiment is that liquid chunnel turns in the mode away from VCP when valve keying element bar axle 17 is positioned at the plane-parallel center of VCP.Thisly cause part passway 50 in the valve to be placed in one away from turning to of VCP opening and closing the center of the different vertical plane of element bar axle 17 with (VCP).In the AERo valve fluid diversion embodiment in front, liquid stream start and stop lever axle and passway in the valve mounting point how all along same planar alignment.Figure 17 illustrates liquid chunnel center line (87,74,75,83) when the valve situation when identical with VCP in the second preferred fluid diversion embodiment.Start and stop lever axle 17 is perpendicular to VCP.As if this valve should be contained on the pipe its side in horizontal pipe, because the start and stop lever axle also is level (vertical with VCP).

The second fluid diversion embodiment can be the ball formula of floating, and also can be revolution axis type ball formula wholly or in part.It can be used in the straighttube-type elbow bend pipe valve body embodiment.When being used for a kind of valve body embodiment in back, preferably should be the valve body location so that sealing gasket is in the downstream of liquid stream.In the ball formula embodiment of floating, revolution axis type valve element embodiment makes liquid stream flow through valve seat usually, flows into the element liquid chunnel.Valve body orientation type in the preferred fluid diversion embodiment of first shown in Figure 13 and 14 that Here it is.

In order further to understand the second preferred valve fluid diversion embodiment, we set forth with reference to Figure 17, show a roughly cylindrical passage 87 among the figure, it makes liquid stream curve the first steering component liquid chunnel 74 to valve element 72 from conduit axis, diagram is depicted as the valve full open position, and valve element 72 is contained in the valve body chamber 86.Next, liquid is turned at the intersection of the first steering component liquid chunnel 74 and the second steering component liquid chunnel 75, and flows forward from passage 75, and through valve seat, inflow circulates liquid into second fluid passage 88 of connecting tube.

The user interface of the second preferred fluid diversion embodiment, the position that promptly opens and closes element 33 and inner passage mouth 50 can change.Figure 15 is identical with the appearance of valve shown in 16, and shown in Figure 17 then is another kind of different appearance.Figure 16 and Figure 17 look the same except the valve position of components.Difference among the figure shows that the user interface of these two valves has tangible difference.In order further to understand the location of user interface, need set up following standard reference position: the interface of regulation is positioned on the valve relevant with liquid stream principal direction.If see over from fluid flow direction, the interface is on the right side of valve, and this interface is taken as right hand manipulation type part.The user interface of being selected for " manually-operable " as can be known by Figure 15 and 16 is passway 50, and therefore valve just becomes " right hand opening " type.The user interface of selecting for " manually-operable " is to open and close element as can be seen from Figure 17, so valve is " right hand keying ".Should note the selection at an interface has been determined the position at second interface, and between two interfaces, have a kind of plane up rightness.As another example that further specifies this point, the left hand open valve an of the present embodiment means that the passway is at the top of valve (or lower curtate).

The assembling of fluid diversion embodiment and service procedure have been made following modification on above-mentioned embodiment basis than the front: valve seat 13 no longer is contained on the DVC, but is contained on the valve housing 86.Valve seat 13 is inserted valve body recess 85, rather than to be welded into an overlay cladding or to go out a coating (becoming as a whole with valve body) with metallic coating be the preferred embodiment of fluid diversion.As downstream recited above valve seat 13 (this valve seat is the part of DVC, and is detachable), preferentially selecting detachable valve seat for use is consistent with simplifying maintenance process, and simplifying maintenance process is a pith of AERo valve design.

Except the fluid diversion embodiment, Figure 11 has illustrated that in valve part passway 50 keep-ups pressure in 18,19 and to a kind of additional device of inner body pressurization.

A kind of shown in Figure 11, the typical fluid diversion embodiment of AERo valve, this scheme have the pressurization disk device that is used to keep-up pressure with the inner body location.This design can together be used with previous embodiments, also can together use with the fluid diversion embodiment shown in Figure 11～17.This can replace the outer surface of DVC 12 to realize by the similar face with valve gap 73.

The purpose of the present embodiment as the wiper seal of Fig. 5 design, is to play the effect that seals fully under the valve body opening state, reduces this part overall dimension of valve simultaneously.

With reference to Figure 11, when valve gap 73 by the valve body of packing into of part passway 50 internally, and after heading on valve element 72, pressurization disk 77 is inserted the valve body chambeies 86 by the slit 81 from valve body 10.After in a single day pressurization disk 77 was placed into valve body chamber 86, forcing screw 79 just was screwed in the tapped hole 78 of pressurization disk, up to them with till valve gap 73 contacts.Forcing screw 79 can be any in the following design: hexagon head bolt shown in Figure 11 or concave head bolt, the standard dual head bolt that uses the double nut device that the bolt end is linked to each other with valve gap 73, or a kind of special stud bolt and nut, this stud bolt is tightened face and nut 80 in its pressurization disk end, this nut valve gap 73 fully pressurized with on valve body 10 cooperates hermetically after, be used to the stud bolt locking is put in place.

Screwing off forcing screw 79 forces pressurization disk 77 to head on pressurization shoulder 82.Pressurization shoulder 82 plays the effect that makes pressurization disk braking and the screw loading force is delivered to valve gap 73 or above the DVC 12.In preferred embodiments, valve gap 73 and DVC 12 have a pressurization retaining ledge 89, and it determines the suitable position of valve gap of normal valve element, and guiding is also suitably compressed inner seal.

Summary of the invention

By above elaboration, the reader can find out that angle entry rotary valve of the present invention will keep side to enter The intrinsic advantage of formula valve assembly, and make in-line repairing valve become possibility. For ball valve, this Mean that the AERo valve not only can place under repair in pipe-line system, and can with valve seat and valve Element is together assembled, and they are installed along compression aspect, rather than resembles the inputting type ball valve from the top Install downwards. This will make assembling easier and eliminated and damaged new parts when valve reinstalled pipeline Dangerous.

Butterfly valve can destroy now the pipe connection and just can install.

And the AERo valve has following extra advantage:

^*In conventional repair procedures, valve seat is removed. And in the door and ball valve of linear operation, very Major general's valve seat takes off, if take off will give mechanics add sizable one straight connect or Connect (take-down time of dish device) cost. Equally, worn out door or ball valve seat often are The omen that valve is scrapped. Come for the AERo valve that can hold out against several times valve seat replacing potentially The condition of pleading for mercy for is not such.

^*During down twisting bolt and valve taken out from pipe-line system, valve can be simply by usefulness Original a whole set of of part replacement reset up hill and dale in the one cover service valve. This means that factory is passable In several hours, resume production rather than in shifts or etc. several weeks a few days.

^*Be exposed to the workman that has in the potential danger environment because the greatly shortening of repairing time and Significantly reduce. This is very important for chemical plant and nuclear power plant.

^*Because valve seat is removed in routine is repaired, and because the valve seat of the concentric type design of DVC Can on engine lathe, process easily, so can carry out the repair on a large scale of valve seat.

^*Soldered connection replaces greatly reducing thereby flange plate type valve pipe connects. To reduce like this The leakage that ring flange brings, thereby saved the product that leaks in the atmosphere, and saved with often The rule ring flange maintenance maintenance cost relevant with rush repair.

^*The leakage of valve ring flange is a kind of environomental pollution source. Use the design of AERo valve and welding valve to connect Connect and will more meet U.S.'s atmosphere pollution ban, especially in oil plant and chemical plant, volatility Organic compound (VOCs) is a kind of primary pollution source.

Although top narration comprises a lot of details, should not be understood as limited of the present invention Scope, and should be regarded as illustrating of the existing preferred embodiment of the present invention. For example, AERo The valve body profile can be square or rectangle etc. simply, and this valve body can in one plane have each Plant the several channels in the fluid course, rather than only have one from pipe centerline (skew) The extraradial passage of heart alignment also has other suchlike example.

Therefore, scope of the present invention should be limited by claims and legal equivalent thereof, Rather than by for example limit.

Claims

1. valve with turning member, this valve is used for controlling fluid flow in pipe-line system, have one and assign to the fluid passage of downstream line part from upstream pipe portion, wherein above-mentioned upstream line part has different axis of flow with the downstream part, and wherein this valve comprises:

Inlet liquid chunnel, this passage and above-mentioned upstream pipe portion divide and form fluid and is communicated with, and this inlet channel has one roughly to be total to the axis of flow of expanding with the axis of flow of upstream line part;

The outlet liquid chunnel, this passage partly forms fluid with above-mentioned downstream line and is communicated with, and this outlet passage has one roughly to be total to the axis of flow of expanding with the axis of flow of downstream line part;

Valve body, between inlet liquid chunnel and outlet liquid chunnel, this valve body comprises:

Active chamber, its have one with above-mentioned inlet liquid chunnel roughly altogether expansion axle, provide a housing to reversing valve members, and dismountable valve body active chamber part wherein be housed;

Reversing valve members, may command liquid stream;

Valve maintenance runaway mouth is positioned at this active chamber one end, the downstream of reversing valve members and this outlet liquid chunnel; And this removable valve body running chamber element is between valve element and valve maintenance runaway mouth, when its by when the maintenance runaway mouth is inserted completely into the valve body chamber, be used for cooperating hermetically with an end of reversing valve members, and its other end cooperates with the active chamber face seal ground of adjacent channel mouth, and this element comprises:

The entrance liquid chunnel has an axis of flow of roughly expanding altogether with the axis of flow of upstream line part;

The outlet section liquid chunnel has an axis of flow of roughly expanding altogether with the axis of flow of downstream line part;

And the method for maintaining of this reversing valve members and dismountable valve body active chamber element can change with the different of maintenance runaway mouth.

2. valve as claimed in claim 1, wherein valve body also comprises a downstream valve seat and a device that applies assembling pressure.

3. valve as claimed in claim 1, wherein dismountable valve body active chamber element also comprises a downstream valve seat, seal ring and a device that applies assembling pressure behind the valve seat.

4. valve as claimed in claim 1 wherein also comprises seal ring behind a downstream valve seat and the valve seat for its valve body of fly valve.

5. valve as claimed in claim 1 wherein also comprises seal ring behind a downstream valve seat and the valve seat for its dismountable valve body chamber element of fly valve.

6. valve as claimed in claim 1, wherein the valve element can be chosen from following elements: the formula of floating ball valve, revolution axis type ball valve with valve seat of installing the upstream, revolution axis type ball valve with valve seat of installing in the downstream has the valve seat of upstream installation and the revolution axis type ball valve and the fly valve of the valve seat that install in the downstream.

7. valve as claimed in claim 1 wherein fixes above-mentioned valve maintenance runaway mouth with screw thread, flange plate, wiper seal or clamp device.

8. valve as claimed in claim 1 also comprises an additional liquid flow-control element.

9. valve as claimed in claim 1, wherein dismountable valve body active chamber element sealably cooperates with the maintenance runaway mouth, and serves as pressurized border lid.

10. valve as claimed in claim 9, wherein valve body also comprises a downstream valve seat and a device that applies assembling pressure.

11. valve as claimed in claim 9, wherein dismountable valve body active chamber element also comprises a downstream valve seat, sealing gasket and a device that applies assembling pressure behind the valve seat.

12. valve as claimed in claim 9 wherein also comprises sealing gasket behind a downstream valve seat and the valve seat for its valve body of fly valve.

13. valve as claimed in claim 9 also comprises sealing gasket behind a downstream valve seat and the valve seat for its dismountable valve body active chamber element of fly valve.

14. valve as claimed in claim 9, wherein the valve element can be chosen from following elements: the formula of floating ball valve, have the revolution axis type ball valve that the upstream is installed the revolution axis type ball valve of valve seat, had the valve seat of installing in the downstream, have the revolution axis type ball valve and the fly valve of the valve seat of upstream and downstream installation.

15. valve as claimed in claim 9, wherein available screw thread, flange plate, wiper seal or clamp device fix described valve maintenance channel mouth.

16. valve as claimed in claim 9, it also comprises a liquid flow-control element.

17. valve with turning member, this valve is used for controlling fluid flow in pipe-line system, it has a fluid passage of assigning to the downstream line part from upstream pipe portion, wherein this upstream line part partly has identical axis of flow with downstream line, this axle moves with valve, and wherein above-mentioned valve comprises:

The inlet liquid chunnel, this passage divides the formation fluid to be communicated with upstream pipe portion, and this inlet liquid chunnel comprises:

The initial segment has the axis of flow of roughly expanding altogether with upstream and downstream pipe section common flow moving axis;

Stop section, have and the obtuse-angulate axis of flow of liquid flow direction, this liquid stream is shunted pipe section downstream along the common flow moving axis of upstream and downstream pipe section from upstream pipe portion;

The outlet liquid chunnel, this passage partly forms fluid with above-mentioned downstream line and is communicated with, and this outlet liquid chunnel comprises:

The initial segment has and the acutangulate axis of flow of liquid flow direction, and liquid is shunted pipe section downstream along the common shaft of upstream and downstream pipe section from upstream pipe portion;

Stop section, have an axis of flow of roughly expanding altogether with upstream and downstream pipe section axis of flow;

Active chamber has the axis of roughly expanding altogether with the termination section of inlet liquid chunnel, for reversing valve members provides housing and a dismountable valve body active chamber element wherein is housed;

Reversing valve members, may command liquid stream;

Valve maintenance runaway mouth is positioned at this active chamber one end, the downstream of reversing valve members and this outlet liquid chunnel;

And this dismountable valve body active chamber is between reversing valve members and valve maintenance channel mouth, when its by when the maintenance channel mouth is inserted completely into the valve body chamber, be used for cooperating hermetically with an end of reversing valve members, and its other end cooperates with the active chamber face seal ground of adjacent channel mouth, comprising:

The entrance liquid chunnel has an axis of flow of roughly expanding altogether in the termination axis of flow of inlet liquid chunnel;

The outlet section liquid chunnel has an axis of flow of roughly expanding altogether with the The initial segment axis of flow of outlet liquid chunnel; Wherein, the method for maintaining of this reversing valve members and dismountable valve body active chamber element can change with the different of maintenance runaway mouth.

18. valve as claimed in claim 17, wherein valve body also comprises a downstream valve seat and a device that applies assembling pressure.

19. valve as claimed in claim 17, wherein dismountable valve body active chamber element also comprises a downstream valve seat, sealing gasket and apply the device of assembling pressure behind valve seat.

20. valve as claimed in claim 17 wherein, comprises sealing gasket behind a downstream valve seat and the valve seat for its valve body of fly valve.

21. valve as claimed in claim 17, for fly valve, its removable valve body running chamber element also comprises sealing gasket behind a downstream valve seat and the valve seat.

22. valve as claimed in claim 17, wherein the valve element can be chosen from following elements: the formula of floating ball valve, the revolution axis type ball valve of the valve seat that install the band upstream, the revolution axis type ball valve of band downstream valve seat, the revolution axis type ball valve and the fly valve of the valve seat that the band upstream and downstream is installed.

23. valve as claimed in claim 17; The available screw thread of wherein above-mentioned valve maintenance runaway mouth, flange plate, wiper seal or clamp device fix.

24. valve as claimed in claim 17 also comprises an additional liquid flow-control element.

25. valve as claimed in claim 17, wherein this dismountable valve body active chamber element sealably cooperates with above-mentioned maintenance runaway mouth, and serves as pressurized border lid.

26. valve as claimed in claim 25, wherein valve body also comprises a downstream valve seat and a device that applies assembling pressure.

27. valve as claimed in claim 25, wherein dismountable valve body active chamber element also comprises a downstream valve seat, sealing gasket and the device that applies assembling pressure behind the valve seat.

28. valve as claimed in claim 25 wherein also comprises sealing gasket behind a downstream valve seat and the valve seat for its valve body of fly valve.

29. valve as claimed in claim 25 wherein also comprises sealing gasket behind a downstream valve seat and the valve seat for its dismountable valve body active chamber element of fly valve.

30. valve as claimed in claim 25, wherein the valve element can be chosen from following elements, the formula of floating ball valve, the revolution axis type ball valve of the valve seat that install the band upstream, the revolution axis type ball valve of the valve seat that install in the band downstream, the revolution axis type ball valve and the fly valve of the valve seat that the band upstream and downstream is installed.

31. valve as claimed in claim 25, wherein valve maintenance runaway mouth can screw thread, flange plate, wiper seal or clamp device fix.

32. valve as claimed in claim 25, it also comprises additional liquid flow-control element.

33. repair method with valve of turning member, this valve is used for controlling fluid flow in pipe-line system, it has the fluid passage of partly leading to the downstream line part from upstream line, and the axis of flow of wherein above-mentioned upstream line part and downstream line part is inequality, and this valve comprises:

Inlet liquid chunnel, this passage and upstream pipe portion divide and form fluid and is communicated with, and this inlet liquid chunnel has one and roughly is total to the axis of flow of expanding with upstream line axis of flow partly;

The outlet liquid chunnel, this passage partly forms fluid with downstream line and is communicated with, and this inlet liquid chunnel has an axis of flow of roughly expanding altogether with the axis of flow of downstream line part;

Active chamber has an axle of roughly expanding altogether with above-mentioned inlet liquid chunnel, for reversing valve members provides a chamber shell, dismountable valve body active chamber element is housed wherein;

Reversing valve members, may command fluid flow;

Valve maintenance runaway mouth is positioned at this active chamber one end, the downstream of reversing valve members and outlet liquid chunnel;

Above-mentioned dismountable valve body active chamber element is between this valve element and valve maintenance runaway mouth, when its by when the maintenance channel mouth is inserted completely into the valve body chamber, be used for cooperating hermetically with an end of this reversing valve members, and its other end cooperates with the active chamber face seal ground of adjacent channel mouth, comprising:

The entrance liquid chunnel, have one with the axis of flow of the upstream line part axis of flow of expansion altogether roughly;

The outlet section liquid chunnel, have one with the axis of flow of the downstream line part axis of flow of expansion altogether roughly;

And wherein the method for maintaining of reversing valve members and dismountable valve body active chamber element can change with the different of maintenance runaway mouth.This method comprises:

A. open this valve maintenance runaway mouth;

B. pull down dismountable valve body active chamber element;

C. check this reversing valve members and valve body active chamber element;

D. repair or change reversing valve members and dismountable valve body active chamber element as required;

E. reorientate above-mentioned reversing valve members, and change dismountable liquid chunnel element;

F. close the maintenance runaway mouth.

34. repair method with valve of turning member, this valve is used for controlling fluid flow in pipe-line system, it has the fluid passage of assigning to the downstream line part from upstream pipe portion, wherein above-mentioned upstream line part and downstream line partly have a common shaft, this axle moves with above-mentioned valve, and wherein this valve comprises:

The inlet liquid chunnel divides the formation fluid to be communicated with upstream pipe portion, and wherein this inlet liquid chunnel comprises:

The initial segment has an axis of flow of roughly expanding altogether with the common flow moving axis of upstream and downstream pipe section;

Stop section, have one and the acutangulate axis of flow of fluid flow direction, fluid is shunted pipe section downstream along the common flow moving axis of upstream and downstream pipe section from upstream pipe portion;

The outlet liquid chunnel partly forms fluid with downstream line and is communicated with, and wherein this outlet liquid chunnel comprises:

The initial segment has one and the acutangulate axis of flow of fluid flow direction, and fluid is shunted pipe section downstream along the common flow moving axis of upstream and downstream pipe section from upstream pipe portion.

Stop section, have an axis of flow of roughly expanding altogether with the common flow moving axis of above-mentioned upstream and downstream pipe section;

Valve body, between this inlet liquid chunnel and outlet liquid chunnel, this valve body comprises:

Active chamber has an axle of roughly expanding altogether with the correction section of above-mentioned inlet liquid chunnel, for reversing valve members provides a chamber shell, and dismountable valve body active chamber element is housed wherein;

Reversing valve members, may command fluid flow;

Valve maintenance runaway mouth is positioned at this active chamber one end, the downstream of reversing valve members;

Dismountable valve body active chamber element is between above-mentioned valve element and valve maintenance runaway mouth, when its by when the maintenance runaway mouth is inserted completely into the valve body chamber, be used for cooperating hermetically with an end of this reversing valve members, and its other end cooperates with the active chamber face seal ground of adjacent channel mouth, comprising:

The entrance liquid chunnel has an axis of flow of roughly expanding altogether with the axis of flow of above-mentioned inlet liquid chunnel termination section;

The outlet liquid chunnel has an axis of flow of roughly expanding altogether with the axis of flow of above-mentioned outlet liquid chunnel The initial segment;

And the method for maintaining of wherein above-mentioned reversing valve members and dismountable valve body active chamber element can change with the different of maintenance channel mouth, and this method comprises:

A. open valve maintenance runaway mouth;

B. pull down dismountable valve body active chamber element;

C. check reversing valve members and dismountable valve body active chamber element;

D. as required, repair or change reversing valve members and dismountable valve body active chamber element;

E. reorientate reversing valve members and change dismountable liquid chunnel element;

F. close this valve maintenance runaway mouth.

35. dismountable valve body active chamber element, this element is used in the valve with turning member, this valve is used for controlling fluid flow in pipe-line system, this valve has a fluid passage of partly leading to the downstream line part from upstream line, wherein this upstream line part partly has different axis of flow with downstream line, and this valve comprises:

The inlet liquid chunnel divide to form fluid with upstream pipe portion and is communicated with, and wherein this inlet liquid chunnel has one roughly to be total to the axis of flow of expanding with upstream line axis of flow partly;

The outlet liquid chunnel partly forms fluid with downstream line and is communicated with, and wherein this outlet liquid chunnel has an axis of flow of roughly expanding altogether with the axis of flow of downstream line part; Valve body is between inlet liquid chunnel and outlet liquid chunnel, and this valve body comprises:

Active chamber has an axle of roughly expanding altogether with the inlet liquid chunnel, and for reversing valve members provides a chamber shell, a dismountable valve body active chamber element is housed wherein;

Reversing valve members, may command fluid flow;

Valve maintenance runaway mouth is positioned at active chamber one end, is in the downstream of this reversing valve members and outlet liquid chunnel; Wherein, this dismountable valve body active chamber element is suitable for being installed between reversing valve members and the valve maintenance channel mouth, and when this element is inserted in the valve body from the maintenance channel mouth fully, wherein this dismountable valve body active chamber element is suitable for cooperating hermetically with reversing valve members, and the face seal ground that the other end is suitable for adjoining with this active chamber the passway cooperates; This dismountable valve body active chamber element also comprises:

The outlet section liquid chunnel has an axis of flow of roughly expanding altogether with the axis of flow of downstream line part; Wherein above-mentioned reversing valve members can change with the different of maintenance runaway mouth with the method for maintaining of removable valve body running chamber element.

36. dismountable valve body active chamber element, this element is used in the valve with turning member, this valve is used for controlling fluid flow in pipe-line system, this valve has a fluid flowing passage that partly leads to the downstream line part from upstream line, wherein this upstream line part and downstream line partly have a common flow moving axis, this axle moves with valve, and wherein this valve comprises:

The inlet liquid chunnel divide the formation fluid to be communicated with upstream pipe portion, and wherein this inlet liquid chunnel comprises:

Stop section, have one and the acutangulate axis of flow of fluid flow direction, fluid is shunted pipe section downstream along the common flow moving axis of upstream and downstream pipe section from upstream pipe portion.

The outlet liquid chunnel forms fluid with the downstream line system and is communicated with, and wherein this outlet liquid chunnel comprises:

The initial segment has one and the acutangulate axis of flow of fluid flow direction, and fluid is shunted pipe section downstream along the common flow moving axis of upstream and downstream pipe section from upstream pipe portion;

Stop section, have an axis of flow of roughly expanding altogether with the axis of flow of upstream and downstream pipe section; Valve body is between inlet liquid chunnel and outlet liquid chunnel, and this valve body comprises:

Active chamber has an axle of roughly expanding altogether with the correction section of inlet liquid chunnel, for reversing valve members provides a chamber shell, and dismountable valve body active chamber element is housed wherein;

Reversing valve members, may command fluid flow;

Valve maintenance runaway mouth is positioned at this active chamber one end, is in the downstream of this reversing valve members and outlet liquid chunnel; Wherein this removable valve body running chamber element is suitable for being installed between reversing valve members and the valve maintenance runaway mouth, and when this element by when the maintenance runaway mouth is inserted completely in the valve body, this dismountable valve body active chamber element is suitable for cooperating hermetically with reversing valve members, and the face seal ground that the other end is suitable for adjoining with this active chamber the passway cooperates; This dismountable valve body active chamber element also comprises:

The entrance liquid chunnel has an axis of flow of roughly expanding altogether with the termination section of above-mentioned inlet liquid chunnel;

The outlet section liquid chunnel has an axis of flow of roughly expanding altogether with the The initial segment of above-mentioned outlet liquid chunnel;

And the method for maintaining of wherein above-mentioned reversing valve members and dismountable valve body active chamber element can change with the different of maintenance channel mouth.

37. valve with turning member, be used for controlling fluid flow in pipe-line system, have one from the upstream line system flow fluid passage of pipe-line system downstream, its above-mentioned upstream line system has different axis of flow with the downstream line system, and wherein this valve comprises:

The inlet liquid chunnel forms fluid with the upstream line system and is communicated with, and wherein this inlet liquid chunnel has an axis of flow of roughly expanding altogether with the axis of flow of upstream line system;

The outlet liquid chunnel forms fluid with the downstream line system and is communicated with, and wherein this outlet liquid chunnel has an axis of flow of roughly expanding altogether with the axis of flow of downstream line part;

Active chamber is for the reversing valve members that is mounted in it provides a shell chamber;

Valve maintenance runaway mouth is in one of valve body away from above-mentioned inlet liquid chunnel with set out on the position of liquid chunnel;

The above-mentioned reversing valve members of may command fluid flow and is equipped with and is used for and exports the device that fluid passage cooperates hermetically between inlet fluid passage and outlet fluid passage, comprising:

The entrance liquid chunnel has a primary importance, and the axis of flow of this passage is roughly expanded altogether with the axis of flow of above-mentioned upstream line part on this position;

The outlet section liquid chunnel has a primary importance, and on this position, the axis of flow of this passage and downstream line part axis of flow be expansion altogether roughly; And this outlet section liquid chunnel is connected with above-mentioned entrance liquid chunnel;

Be used between the primary importance and the second place, making the device of reversing valve members rotation, primary importance upper inlet section liquid chunnel be connected with above-mentioned inlet liquid chunnel and also the outlet section liquid chunnel with export liquid chunnel and be connected; On the second place, at least one in entrance liquid chunnel and the outlet section liquid chunnel is not connected with corresponding inlet liquid chunnel or outlet liquid chunnel; Wherein the method for maintaining of this reversing valve members can change with the difference of maintenance channel mouth.

38. valve as claimed in claim 37, wherein the valve element is chosen from following elements: the formula of floating ball valve, complete and local (part) revolution axis type ball valve.

39. as described in claim 37, wherein the available screw thread of valve maintenance runaway mouth, flange plate, wiper seal, clamping or pressurization disk device fix.

40. valve as claimed in claim 37 also comprises additional liquid flow-control element.

41. valve as claimed in claim 37, wherein the center line of this passway and being used to rotates the center line coplane substantially of the device of reversing valve members.

42. valve as claimed in claim 37, wherein the center line of passway and being used to rotates the center line quadrature substantially of the device of reversing valve members.

43. valve with turning member, be used for controlling fluid flow in pipe-line system, have one and shunt the fluid flowing passage of pipe section downstream from upstream pipe portion, wherein upstream line part and downstream line partly have a public axis of flow, this axle moves with valve, and wherein this valve comprises:

The inlet liquid chunnel divide the formation fluid to be communicated with upstream pipe portion, and this inlet liquid chunnel comprises:

Stop section, have one and the obtuse-angulate axis of flow of fluid flow direction, fluid is shunted pipe section downstream along the common flow moving axis of upstream and downstream pipe section from upstream pipe portion;

The initial segment has one and the acutangulate axis of flow of fluid flow direction, and fluid is shunted pipe section downstream along the common flow moving axis of upper and lower pipe section from upstream pipe portion;

Stop section, have an axis of flow of roughly expanding altogether with the axis of flow of upstream and downstream pipeline; Valve body is between above-mentioned inlet flow channel and outlet flow channel; This valve body comprises:

Active chamber is for the reversing valve members that is mounted in it provides a chamber shell;

Valve maintenance runaway mouth is positioned on the position of valve body away from inlet liquid chunnel and outlet liquid chunnel;

The reversing valve members of may command fluid flow is between inlet liquid chunnel and outlet liquid chunnel, and be equipped be used for when its by when the maintenance runaway mouth is inserted completely into above-mentioned active chamber, with the inlet device that cooperates hermetically of liquid chunnel and the device that cooperates hermetically with the maintenance runaway mouth, comprising:

The entrance liquid chunnel has a primary importance, and in this position, the axis of flow of this passage and above-mentioned inlet liquid chunnel stop the roughly expansion altogether of axis of flow of section;

The outlet section liquid chunnel has a primary importance, and in this position, the axis of flow of the axis of flow of this passage and above-mentioned outlet liquid chunnel The initial segment is expansion altogether roughly;

Be used for making between the primary importance and the second place device of reversing valve members rotation, on primary importance, the entrance liquid chunnel is connected with above-mentioned inlet liquid chunnel, and the outlet section liquid chunnel is connected with the outlet liquid chunnel; On the second place, at least one in entrance liquid chunnel and the outlet section liquid chunnel is not connected with corresponding inlet liquid chunnel or outlet liquid chunnel; Wherein the method for maintaining of this reversing valve members can change with the difference of maintenance channel mouth.

44. valve as claimed in claim 43, wherein this valve body also comprises a downstream valve seat and a device that applies assembling pressure.

45. valve as claimed in claim 43, wherein the valve element can be chosen from following elements: the formula of floating ball valve, complete and part (part) revolution axis type ball valve.

46. valve as claimed in claim 43, wherein this valve is safeguarded and can be fixed with screw thread, flange plate, wiper seal, clamping or pressurization disk device with the passway.

47. valve as claimed in claim 43 also comprises additional liquid flow-control element.

48. valve as claimed in claim 43, wherein the center line of passway and being used to rotates the center line coplane roughly of the device of reversing valve members.

49. valve as claimed in claim 43, wherein the vertical center line plane of this whirligig and a horizontal pipe is not on same vertical plane, and the swivel gear of a valve is in the central upper portion position of valve in this horizontal pipe with respect to horizontal pipe.

50. repair method with valve of turning member, this valve is used at pipe-line system controlling liquid flow, has a fluid passage of assigning to the downstream line part from upstream pipe portion, wherein the upstream line part partly has different axis of flow with downstream line, and wherein above-mentioned valve comprises:

The inlet liquid chunnel divide the formation fluid to be communicated with upstream pipe portion, and wherein this inlet liquid chunnel has an axis of flow of roughly expanding altogether with the axis of flow of above-mentioned pipe section;

The outlet liquid chunnel partly forms fluid with downstream line and is communicated with, and wherein this outlet liquid chunnel has an axis of flow of roughly expanding altogether with the axis of flow of dirty pipe section;

Valve body, between inlet liquid chunnel and outlet liquid chunnel, this valve comprises:

Valve maintenance runaway mouth is positioned on position away from above-mentioned inlet liquid chunnel and outlet liquid chunnel of this valve body;

Reversing valve members, may command fluid flow is between inlet liquid chunnel and the outlet liquid chunnel, is equipped with to be used for the device that cooperates hermetically with above-mentioned outlet liquid chunnel, and comprises:

The entrance liquid chunnel has a primary importance, roughly expands altogether in the axis of flow of this this turning member of position and the axis of flow of above-mentioned upstream line part;

The outlet section liquid chunnel has a primary importance, is communicated with above-mentioned entrance liquid chunnel in the axis of flow of this valve element of this position and the roughly common expansion of axis of flow and this outlet section liquid chunnel of above-mentioned downstream liquid chunnel;

Be used between the primary importance and the second place, making the device of reversing valve members rotation, on primary importance, the entrance liquid chunnel is connected with above-mentioned inlet liquid chunnel, and the outlet section liquid chunnel with go out liquid chunnel and be connected, on the second place, at least one in entrance liquid chunnel and the outlet section liquid chunnel is not connected with corresponding inlet liquid chunnel or outlet liquid chunnel; Wherein the method for maintaining of this reversing valve members can change with the difference of maintenance runaway mouth.This method comprises:

A. open valve maintenance runaway mouth;

B. check this reversing valve members;

C. repair or change this reversing valve members as required;

D. reorientate above-mentioned reversing valve members as required;

E. cut-off valve maintenance runaway mouth.

51. repair method with valve of turning member, this valve is used at pipe-line system controlling liquid flow, has a fluid passage of assigning to the downstream line part from upstream pipe portion, wherein above-mentioned upstream line part and downstream line partly have a common flow moving axis, this axle moves with valve, and wherein this valve comprises:

The initial segment has an axis of flow of roughly expanding altogether with the common flow moving axis of above-mentioned upstream and downstream pipe section;

Stop section, have one with the obtuse-angulate axis of flow of fluid flow direction, fluid is to shunt pipe section downstream along the common flow moving axis of above-mentioned upstream and downstream pipe section from upstream pipe portion;

The initial segment, have one with the acutangulate axis of flow of fluid flow direction, fluid is to shunt pipe section downstream along the common flow moving axis of above-mentioned upstream and downstream pipe section from upstream pipe portion;

Stop section, have an axis of flow of roughly expanding altogether with the common flow moving axis of upstream and downstream pipe section;

Valve maintenance runaway mouth is positioned on position away from inlet liquid chunnel and outlet liquid chunnel of this valve body;

Above-mentioned reversing valve members, may command fluid flow, between inlet liquid chunnel and outlet liquid chunnel, and be equipped with when its when above-mentioned valve maintenance runaway mouth is inserted completely into active chamber, the device that is used for the device that cooperates hermetically with above-mentioned inlet liquid chunnel and is used for cooperating hermetically with this maintenance channel mouth, and comprise:

The entrance liquid chunnel has a primary importance, in the roughly expansion altogether of axis of flow of the termination section of the axis of flow of this this element of position and above-mentioned inlet liquid chunnel;

The outlet section liquid chunnel has a primary importance, and in the roughly expansion altogether of axis of flow of the The initial segment of the axis of flow of this this element of position and above-mentioned outlet liquid chunnel, and this outlet section liquid chunnel is connected with this entrance liquid chunnel;

Be used for making between the primary importance and the second place device of reversing valve members rotation, on primary importance, the entrance liquid chunnel is connected with above-mentioned inlet liquid chunnel, and the outlet section liquid chunnel is connected with above-mentioned outlet liquid chunnel; On the second place, at least one in entrance liquid chunnel and the outlet section liquid chunnel is not connected with corresponding inlet liquid chunnel or outlet liquid chunnel; And wherein the method for maintaining of this reversing valve members can change with the difference of maintenance channel mouth.This method comprises:

A. open valve maintenance runaway mouth;

B. check this reversing valve members;

C. repair or change this reversing valve members as required;

D. align this reversing valve members as required again;

E. cut-off valve maintenance runaway mouth.

52. a shutoff device that is used for valve inner passage mouth provides positioning pressure around the valve and to the inner body pressurization, this shutoff device comprises:

(a) valve body comprises:

(i) inner passage mouth;

The shoulder that (ii) circumferentially pressurizes is around this inner passage mouth;

(iii) the valve body slit is a circumferential recess on this valve interior wall, and this inwall is in the inside of this pressurization shoulder, and wherein at least one part of this groove comprises an opening that passes this valve body at the sidewall of pressurization shoulder inside;

Need compressive load when (b) at least one inner body uses, this load can apply from this passway;

(c) valve gap of suitable dimension is suitable for by this passway in the valve inner layout, and is suitable for transmitting compressive force at least one inner body;

(d) pressurization disk has the disk body size that can be contained between this passway and the valve body slit, and this size is suitable for making in this dish packed into valve body from the valve body slit, also has the tapped hole of at least one perforation on this pressurization disk;

(e) at least one forcing screw is suitable for penetrating above-mentioned at least one tapped hole and cooperates, and applies compressive force towards valve gap, simultaneously pressurization disk is sealed facing to valve body pressurization shoulder.

53. a shutoff device that is used for valve inner body passway provides positioning pressure around the valve and to the inner body pressurization, this shutoff device comprises:

(a) valve body comprises:

(i) inner passage mouth;

(c) dismountable valve body active chamber element has the size that is suitable for by above-mentioned passway layout in valve body, and this size also is suitable for transmitting compressive force at least one inner body;

(e) at least one forcing screw, at least one tapped hole that is suitable for passing above-mentioned pressurization disk are screwed into realizing, and apply compressive force towards dismountable valve body active chamber element, simultaneously with pressurization disk facing to the sealing of valve body pressurization shoulder.