CN1133028C - Dual-sleeve valve with fluid-controlled pipe cleaning - Google Patents
Dual-sleeve valve with fluid-controlled pipe cleaning Download PDFInfo
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- CN1133028C CN1133028C CN99114869A CN99114869A CN1133028C CN 1133028 C CN1133028 C CN 1133028C CN 99114869 A CN99114869 A CN 99114869A CN 99114869 A CN99114869 A CN 99114869A CN 1133028 C CN1133028 C CN 1133028C
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- main valve
- power cylinder
- straight way
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
- F16L55/46—Launching or retrieval of pigs or moles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
- B08B9/053—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction
- B08B9/055—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the same cross-section of the pipes, e.g. pigs or moles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fluid-Driven Valves (AREA)
- Multiple-Way Valves (AREA)
Abstract
The present invention relates to a fluid engineering element, particularly to a valve which can control fluid and also allow a fluid pipe cleaner to pass through. The sheathed valve comprises a valve body 2 and a main valve 1, wherein the valve body 2 is connected with a fluid pipe 3; the main valve 1 of a main valve stem 6 is connected with a main valve core 7 in the valve body; an inner valve 8 and a through pipe 9 are arranged in the main valve core; a control device controls the main valve to communicate the inner valve and the through pipe with the fluid pipe; the control device is provided with a hydraulic cylinder 10 of which a piston rod 12 is connected with the main valve stem in a transmission mode; a straight way valve 15 or a straight way valve 67 communicates the hydraulic cylinder with the fluid pipe; a controller passes through the straight way valve. The inner valve can be various self-operated valves or external force valves.
Description
Technical field
The present invention relates to the fluid engineering element, particularly can control fluid, again the valve that can allow the fluid hose cleaner pass through.
Background technique
The pipeline of conveyance fluid especially has dielectric deposition and the pipeline that the wall erosion overburden is arranged, and the wiper that need pass through in pipeline is cleared up pipeline, recovers the transportation performance of pipeline.Because wiper must be good fit with the pore aperture, therefore generally, wiper can only be provided with can be by wiper control valve for fluids and the pipeline section of equipment in operation clean, make that pigging engineering difficulty is big, long in time limit, manpower and expense height.Existing can control can pass through the again control valve of wiper of fluid, the gate valve of wiper if can pass through, this gate valve is opened on plate shaped flap and has been made a through hole that matches with pore, blind plate portion with flap finishes the gate valve function, passes through function and finish wiper with the through-hole section of flap.The wiper that this structure has only solved gate valve is by problem, and the wiper of failing to solve other valve passes through problem.And the control of the valve during pigging, adopt control or external force hydraulic control manually more, therefore also exist control inconvenient, must use the problem of the external force energy.
Summary of the invention
Given this, the object of the present invention is to provide a kind of dual-sleeve valve with fluid-controlled pipe cleaning that utilizes controlled fluid valve to be controlled and carried out the wiper access control.
The fluid power cylinder that the valve rod of the main valve on employing of the present invention and the fluid hose links to each other, and employing has the main valve plug of internal valve and siphunculus, with the straight way valve that can match and the controller of straight way valve with the wiper of in fluid hose, advancing, make the pressure fluid in the fluid hose enter and discharge the fluid power cylinder, make the perforation that coincide of the internal valve of main valve plug or siphunculus and fluid hose realize its purpose with the control main valve.And further adopt and the controller of magnetic switch and electrical-controller thereof is arranged or magnetic switch is arranged and the controller of sensor and electrical-controller thereof or have fluid power to keep the controller of the cylinder and the valve that resets, or the controller of lever arranged, can control the siphunculus of main valve and fluid hose and coincide the perforation time, make it to delay time to wiper by realizing its purpose.
Dual-sleeve valve with fluid-controlled pipe cleaning of the present invention (referring to accompanying drawing), comprise can be communicated with fluid hose (3) have valve body (2), with valve body in the main valve (1) of the main valve stem (6) that links of main valve plug (7), above-mentioned main valve plug has internal valve (8) and siphunculus (9), the control gear of control main valve with internal valve and siphunculus and fluid hose connection arranged, this control gear has fluid power cylinder (10), the piston rod of fluid power cylinder (12) links with the main valve stem transmission, and straight way valve (15,67) and controller thereof that the fluid power cylinder is communicated with fluid hose are arranged.
Above-mentioned controller can have the magnetic switch (33) and the electrical-controller (36) thereof that match with straight way valve (15,67).
Above-mentioned controller can have the magnetic switch (33) and the electrical-controller (36) thereof that match with straight way valve (15), has with electrical-controller is electric to link and can be fitted in sensor (35,74) on the fluid hose (3) with the wiper of advancing (23) with matching.
Above-mentioned straight way valve (15), can be two multiple-way valves, in the current spool (21) of straight way valve, have walkway (24) that the cavity of resorption (14) of the piston of fluid power cylinder below and fluid hose (3) are connected, and putting of simultaneously epicoele (13) of the piston top of fluid power cylinder and atmosphere being connected press road (25), reset (26) that above-mentioned epicoele and fluid hose are connected are arranged, and simultaneously with the pressure releasing passages (27) of above-mentioned cavity of resorption and atmosphere connection.
Above-mentioned controller, can there be the fluid power that links with straight way valve (15) transmission to keep cylinder (39), the valve that resets (44) that is the two-position three way structure that keeps cylinder to be communicated with straight way valve fluid power is arranged, and the current valve rod (22) of straight way valve and the valve rod that resets (46) of the valve that resets become respectively and can be fitted on the fluid hose (3) of the preposition side of main valve (1) and postposition side with the wiper of advancing (23) with matching.
In above-mentioned fluid power cylinder (10) and the adapter (28,29) between straight way valve (15), bidirectional modulation valve (31,32) is arranged.
The cavity of resorption (14) of above-mentioned fluid power cylinder (10) is communicated with fluid hose, above-mentioned straight way valve (67) can be two position three-way valve, and pressurizing chamber (71) that the epicoele (13) of fluid power cylinder can be communicated with fluid hose and the pressure-releasing chamber (72) that the epicoele of fluid power cylinder can be communicated with atmosphere are arranged in the straight way valve.
Above-mentioned controller can have the lever (76) that links to each other with current valve rod (80) transmission of straight way valve (67), and the lever two ends respectively have and are installed in the push rod (78,79) that can match with the wiper of advancing (23) on the fluid hose.
On the cavity of resorption (14) and the passage between fluid hose of above-mentioned fluid power cylinder (10), bidirectional modulation valve (66) can be arranged.
The piston rod (12) of above-mentioned fluid power cylinder (10) can be coaxial line with main valve stem (6) and connect, and also can perpendicularly be the rack-and-pinion transmission joint.
Above-mentioned internal valve can the self-powering type valve; as adjustable differential flow shuttle valve or safety check or shuttle type check valve or shuttle-type pipeline explosion Protective valve; also can be external force formula valve, as ball valve or modulating valve or shuttle-type modulating valve or stop valve or shuttle-type stop valve.
Said structure of the present invention makes it have following advantage and effect.
One, the main valve plug structure that internal valve and siphunculus arranged of the present invention, the fluid power cylinder structure that links with the main valve transmission, the straight way valve structure that matches with fluid hose, can send and discharge the pressure fluid in the fluid hose to the fluid power cylinder, utilize the fluid self kinetic energy to drive the motion of fluid power cylinder, handle the main valve plug motion through main valve stem, internal valve or siphunculus are inserted fluid circuit.When this structure is connected internal valve and fluid hose, control with the internal valve convection cell; With siphunculus and fluid hose connection the time, can allow wiper pass through.Internal valve of the present invention can be various control valves for fluids, thereby has both had the advantage that can finish with the control function of the corresponding convection cell of various control valves, has the advantage of the wiper that can pass through again.Can be widely used for needing to use the pipeline of pigging.
Two, the controller that magnetic switch and electrical-controller thereof are arranged of straight way valve of the present invention, have magnetic switch, sensor and electrical-controller thereof controller, have fluid power to keep the controller architecture of the cylinder and the valve that resets, all can utilize the operation of wiper, make the current state delay of wiper of main valve be retained to wiper by and recover normal operating condition, can guarantee to make the smooth and easy advantage of wiper thereby have by main valve.Wherein, there is fluid power to keep cylinder and the controller architecture of the valve that resets, has power such as being specially adapted to not electrification and need not the advantage that field boundary on duty closes; The controller architecture that lever is arranged is specially adapted to not have power such as electric power and unattended field boundary to close; The controller architecture that magnetic switch, sensor, electrical-controller are arranged has and is specially adapted to use and the field boundary of operator-less closes advantage.
Three, the controller architecture that magnetic switch, electrical-controller are arranged of straight way valve of the present invention, can be through electrical-controller, straight way valve, fluid power cylinder and control main valve, not only have and to control the advantage that main valve is opened into the current state of wiper, time-delay hold mode and recovers normal operating condition, and have the advantage of handling main valve control fluid.Be specially adapted to not have power such as electric power and unattended field boundary to close.
Four, the bidirectional flow modulating valve structure in the adapter of the present invention can be regulated the flow of sending the fluid of discharging the fluid power cylinder to, thereby has the advantage of adjusting the main valve motion speed.
Five, main valve of the present invention has the advantage of making multiple valve mechanism, and main valve can be that main valve stem is the reciprocating motion type structure that coaxial line connects with the piston rod of fluid power cylinder; Can be that main valve stem is rotatably and links with main valve plug, and with perpendicular rotation of rack-and-pinion transmission joint and the reciprocal compound motion formula structure of being of the piston rod of fluid power cylinder.
Six, self-powering type interior valve structure of the present invention has power such as being specially adapted to not electrification and need not the advantage that field boundary on duty closes.The self-powering type internal valve can be adjustable differential flow shuttle valve, safety check, shuttle type check valve, shuttle-type pipeline explosion Protective valve, also can be other self-powering type valve.External force formula interior valve structure of the present invention has and is specially adapted to the advantage that field boundary on duty closes can be set.External force formula internal valve can ball valve, modulating valve, shuttle-type modulating valve, stop valve, shuttle-type stop valve, also can be other external force formula valve.
Below, use embodiment and accompanying drawing thereof again, the invention will be further described.
Description of drawings
Brief description of drawings.
Fig. 1 is the structural representation of a kind of dual-sleeve valve with fluid-controlled pipe cleaning of the present invention.The main valve plug that shows main valve has internal valve and siphunculus, and the piston rod of fluid power cylinder is the structure that axis connects with main valve stem, the controller architecture that is made of magnetic switch, electrical-controller of the straight way valve of two multi-way structures and straight way valve.Normal operating condition when this figure shows the control of this valve convection cell.
Fig. 2 is the left view of the main valve plug of Fig. 1, shows the structure of internal valve and siphunculus.
Fig. 3 is the view of this valve when wiper is current of Fig. 1.
Fig. 4 is the structural representation of a kind of dual-sleeve valve with fluid-controlled pipe cleaning of the present invention.The piston rod that shows the fluid power cylinder is the structure that axis connects with main valve stem, the controller architecture that is made of magnetic switch, electrical-controller of two multi-way straight way valves of no valve rod and straight way valve.
Fig. 5 is the structural representation of one other fluid control tube purging double position valve of the present invention.The main valve plug 7 that shows main valve has internal valve and siphunculus, and the controller architecture that keeps cylinder, the valve that resets to constitute by the fluid power cylinder of two multi-way straight way valves of valve rod and straight way valve is arranged.Normal operating condition when this figure shows the control of this valve convection cell.
Fig. 6 is the view of this valve when wiper is current of Fig. 5.
When Fig. 7 is normal operation of this valve recovery of Fig. 5, the view of the valve that resets.
Fig. 8 is the structural representation of one other fluid control tube purging double position valve of the present invention.The piston rod and the perpendicular structure that is the rack-and-pinion transmission joint of main valve stem that show the fluid power cylinder.
Fig. 9 is the structural representation of a kind of dual-sleeve valve with fluid-controlled pipe cleaning of the present invention.The special straight way valve of two-position three way formula structure and the controller architecture that constitutes by magnetic switch, electrical-controller thereof of showing.Normal operating condition when this figure shows the control of this valve convection cell.
Figure 10 is the view of this valve when wiper is current of Fig. 9.
Figure 11 is the structural representation of a kind of dual-sleeve valve with fluid-controlled pipe cleaning of the present invention.The main valve plug 7 that shows main valve has internal valve and siphunculus, the controller architecture that the piston rod of fluid power cylinder and main valve stem are structure that axis connects and two-position three way formula straight way valve and are made of magnetic switch, sensor, electrical-controller.
Figure 12 is the structural representation of one other fluid control tube purging double position valve of the present invention.The main valve plug 7 that shows main valve has internal valve and siphunculus, two-position three way formula straight way valve and the controller architecture that is made of lever thereof.Normal operating condition when this figure shows the control of this valve convection cell.
Figure 13 is the view of this valve when wiper is current of Figure 12.
Figure 14 is the structural representation of one other fluid control tube purging double position valve of the present invention.The piston rod and the perpendicular structure that is the rack-and-pinion transmission joint of main valve stem that show the fluid power cylinder.
Figure 15 is the structural representation of one other fluid control tube purging double position valve of the present invention.The inner valve stem that shows internal valve is sleeved in the tubular main valve stem interior valve control, the perpendicular structure that is the rack-and-pinion transmission joint of the piston rod of fluid power cylinder and main valve stem.
Figure 16 is the structural representation of one other fluid control tube purging double position valve of the present invention.The inner valve stem that shows internal valve is sleeved in the tubular main valve stem interior valve control, the perpendicular structure that is the rack-and-pinion transmission joint of the piston rod of fluid power cylinder and main valve stem.
Embodiment
Embodiment 1
A kind of dual-sleeve valve with fluid-controlled pipe cleaning of the present invention is shown in accompanying drawing 1,2,3.Constitute by main valve and control gear.Control gear wherein is made of fluid power cylinder, straight way valve, controller etc.
Above-mentioned main valve 1 has the valve body 2 that is common cavity shape, with common structure main valve is turned in the fluid hose 3.In the upper end of valve body valve gap 4 is arranged, valve body and valve gap can adopt integral structure as shown in the figure, also can adopt common flange-type connecting structure.The valve body bottom is useful on the plug 5 of the worm structure of cleaning body cavity.7 of the main valve stem 6 of main valve and main valve plugs can adopt the common structure that connects firmly, and also can adopt common rotary connecting structure.The main valve plug 7 of main valve is the reciprocating motion type structure.Main valve plug 7 is made of into a single integrated structure internal valve 8 and siphunculus 9, the valve port axis at internal valve and siphunculus two ends parallels, the valve port at internal valve and siphunculus two ends, can be respectively connecting to coincide with the valve port at valve body 2 two ends connects, and promptly the section configuration of the runner of the two and size are basic identical.Above-mentioned internal valve 8 can be to utilize the power of fluid self to come the self-powering type valve of control valve, can select the inventor's shuttle type check valve or adjustable differential flow shuttle valve, shuttle-type pipeline explosion Protective valve and other valve for use.Above-mentioned siphunculus 9 is the straight-through shape pipeline of common shape.
Above-mentioned fluid power cylinder 10 is common hydraulic power cylinder structure, and this fluid power cylinder is made with main valve 1 and is integral the formula structure.Piston 11 in the fluid power cylinder connects firmly mutually with piston rod 12.The top of the reciprocating piston in the fluid power cylinder is an epicoele 13, and the below of piston is a cavity of resorption 14.The main valve stem 6 of main valve 1 runs through valve gap 4 and is coaxial line with piston rod 12 and is connected into integrative-structure.
Above-mentioned straight way valve 15 is two common multiway cock valve arrangements, can be installed on the preposition side's of main valve the fluid hose 3 with support.On the current valve housing 16 epicoele interface 17, cavity of resorption interface 18, fluid hose interface 19, air interface 20 are arranged.Current spool 21 in the housing connects firmly with current valve rod 22, and fluid hose 3 appropriate depth are stretched in the lower end of current valve rod, installs to become to make the wiper 23 of advancing can promote current valve rod and promote the spool that passes through, and valve casing is stretched out in the upper end of the valve rod 22 that passes through.Between current valve rod and fluid hose, sealing configuration should be set.Above-mentioned current spool 21 has when being positioned at housing top, can connect the walkway 24 of cavity of resorption interface 18 and fluid hose interface 19 and can connect epicoele interface 17 simultaneously and press road 25 with putting of air interface 20; Current spool 21 also has when being positioned at lower housing portion, and that can connect epicoele interface 17 and fluid hose interface 19 resets 26 and can connect the pressure releasing passages 27 of cavity of resorption interface 18 and air interface 20 simultaneously.Above-mentioned epicoele interface 17 usefulness adapter 28 is connected with the epicoele 13 of the piston top of fluid power cylinder 10.Above-mentioned cavity of resorption interface 18 usefulness adapter 29 is connected with the cavity of resorption 14 of the piston below of fluid power cylinder.Above-mentioned fluid hose interface 19 is connected through taking over fluid hose 3.Above-mentioned air interface 20 can be held pond 30 through taking over to connect with atmosphere or be provided with below adapter.In above-mentioned adapter 28 and adapter 29, install bidirectional modulation valve 31 and bidirectional modulation valve 32 respectively.The bidirectional modulation valve can be selected the inventor's adjustable differential flow shuttle valve for use, is used for regulating the forward in the adapter and the flow of counter fluid.Thereby the fluid power cylinder can be communicated with fluid hose and atmosphere with straight way valve.The structure of straight way valve also can be that spool is two multiple-way valves of structure of rotatablely moving, when adopting this kind structure, and should the common spool drive mechanism of corresponding employing.
Above-mentioned controller is made of magnetic switch, sensor, electrical-controller etc.Above-mentioned magnetic switch 33 is selected the magnetic switch of common structure for use, makes it can adhesive under the control of electrical-controller and the adhesive dish 34 that links of release and current valve rod 22 upper ends, and magnetic switch can be made the structure with the shared housing of straight way valve.Above-mentioned sensor 35, the electromagnetism sensing type sensor of the common structure that selecting for use to match with wiper 23 acts on, sensor is installed on the fluid hose 3 of main valve postposition side.Above-mentioned electrical-controller 36 is selected common electrical-controller for use, is installed in the place of being convenient to handle, and connects with magnetic switch 33, sensor 35 respectively with electric lead 37 and electric lead 38.
This valve is when the fluid hose conveyance fluid, the current valve rod 22 of straight way valve 15 stretches into fluid hose 3, as shown in Figure 1, current spool 21 places lower housing portion, walkway 24 in the current spool, put and press road 25 to be cut off simultaneously, reset 26 with epicoele interface 17 and 19 connections of fluid hose interface, pressure releasing passages 27 is connected cavity of resorption interface 18 and air interface 20 simultaneously.Pressure fluid in the fluid hose 3 via the fluid hose interface 19 of straight way valve 15, reset 26, epicoele interface 17, take over 28 and bidirectional modulation valves 31 wherein, enter the epicoele 13 of fluid power cylinder 10, make hydrodynamic pressure in the epicoele in the fluid power cylinder slightly equal hydrodynamic pressure in the fluid hose 3; The cavity of resorption 14 of fluid power cylinder through take over 29, the cavity of resorption interface 18 of straight way valve 15, pressure releasing passages 27, air interface 20 connects with ambient atmosphere, making the pressure in the fluid power cylinder cavity of resorption 14 is atmospheric pressure, promptly the upper cavity pressure of fluid power cylinder is greater than cavity pressure down.Under the effect of hydrodynamic pressure, the piston 11 in the fluid power cylinder 10 is pushed to the bottom of fluid power cylinder, main valve plug 7 is pushed into its internal valve 8 connects with fluid hose 3 through piston rod 12, main valve stem 6, and this double position valve is in the normal working of control fluid.
Cleaning with the wiper fluid pipe, march to main valve 1 preposition side's straight way valve 15 when wiper 23, on when pushing away current valve rod 22, as shown in Figure 3, making current spool 21 rise to adhesive dish 34 joins with magnetic switch 33 and makes magnetic switch energising adhesive adhesive dish, current spool goes upward to housing top, make in the current spool 21 reset 26, pressure releasing passages 27 is cut off simultaneously, cavity of resorption interface 18 and fluid hose interface 19 are connected in its walkway 24, put simultaneously to press road 25 that epicoele interface 17 and air interface 20 are connected.Pressure fluid in the fluid hose 3 is through fluid hose interface 19, walkway 24, cavity of resorption interface 18, adapter 29 and the bidirectional modulation valves 32 wherein of straight way valve 15, enter the cavity of resorption 14 of fluid power cylinder 10, make hydrodynamic pressure and the hydrodynamic pressure in the fluid hose 3 in the cavity of resorption roughly the same; The epicoele 13 of fluid power cylinder 10 is through taking over 28, the epicoele interface 17 of straight way valve 15, putting and press road 25, air interface 20 to connect with ambient atmosphere, and making the pressure in the fluid power cylinder epicoele 13 is atmospheric pressure, and promptly the following cavity pressure of fluid power cylinder is greater than upper cavity pressure.Under the effect of magnetic switch 33, the current spool 21 of straight way valve 15 remains on above-mentioned position, make fluid hose 3 to the runner of fluid power cylinder 10 cavity of resorptions 14 be channel status, pressure fluid in the fluid hose 3 constantly enters the cavity of resorption of fluid power cylinder, piston 11 is pushed away on the fluid and is placed the top of fluid power cylinder, main valve stem 6 through piston rod 12, main valve, promote main valve plug 7, make the siphunculus 9 and fluid hose 3 identical perforations of main valve plug 7, allow the wiper of advancing can smooth and easy passing through, this moment, this valve be in the current state of wiper.
When wiper 23 marches to the sensor 35 of main valve 1 postposition side, sensor is delivered to electrical-controller 36 by the signal of main valve through electric lead 37 with wiper, after electrical-controller is handled, deliver to magnetic switch 33 through electric lead 38 again, handle the magnetic switch outage and discharge adhesive dish 34 and current spool 21, current spool descends and resets, and the pressure fluid in the fluid hose 3 reenters the epicoele 13 of fluid power cylinder 10 through straight way valve 15; Simultaneously the fluid in the cavity of resorption 14 of fluid power cylinder also enters atmosphere or holds in the pond 30 through straight way valve, and the piston 11 of fluid power cylinder 10 descends and resets, and the internal valve 8 of main valve plug 7 is connected with fluid hose 3 again, and this double position valve recovers the normal working of control fluid.
When this valve is controlled at the proper functioning convection cell, handle straight way valve 11 by electrical-controller 36 through magnetic switch 33, by handling current spool, on request the epicoele 13 or the cavity of resorption 14 of fluid hose 3 or ambient atmosphere and fluid power cylinder 10 are connected, handle piston 11 liftings of fluid power cylinder, through piston rod 12, main valve stem 6, the control main valve is opened, is closed and aperture, realizes the control of convection cell.
A kind of dual-sleeve valve with fluid-controlled pipe cleaning of the present invention, as shown in Figure 4.The structure of its main valve, fluid power cylinder is identical with embodiment 1, its control gear is on the basis of embodiment 1 control gear, remove straight way valve 15 with the fluid hose lower end of equipped current valve rod 22 mutually, remove the sensor 35 and the electric lead 37 thereof that are fitted on the fluid hose and form.
This valve uses the operation of electrical-controller control straight way valve, by straight way valve control fluid power cylinder, again through fluid power cylinder control main valve, connects the internal valve that needs main valve plug 7 and connects with fluid hose, the unlatching of control main valve, closes and aperture the control of realization convection cell; The siphunculus and the fluid hose of main valve plug 7 are connected, realized the current function of wiper.
A kind of dual-sleeve valve with fluid-controlled pipe cleaning of the present invention, shown in Fig. 5,6,7, fluid power cylinder 10, the straight way valve 15 of its main valve 1 and control gear are identical with embodiment 1, the controller of control gear by fluid power keep cylinder, the valve that resets etc. constitutes.
Above-mentioned fluid power keeps cylinder 39, is common piston hydraulic cylinder structure, can be stacked in the top of straight way valve 15, and is into a single integrated structure with straight way valve, and the two is separated and a shared housing 16 with dividing plate 36.It also can be separate type that fluid power keeps cylinder and straight way valve.The spring 42 that the usefulness that resets is arranged in the cylinder chamber above the maintenance piston 41 of fluid power maintenance cylinder.The current spool 21 that the piston rod 43 of maintenance piston runs through dividing plate 40 and straight way valve fuses.Between piston rod and dividing plate, sealing configuration should be arranged.Keep the stacked more above-mentioned magnetic switch 33 in top of cylinder 39 at fluid power, and adhesive dish 34 is fused with keeping piston 41, current spool 17 with connecting rod.
The above-mentioned valve 44 that resets is common two-position three way piston valve construction, can be installed on the fluid hose 3 of main valve postposition side with support.Valve rod 46 front ends that reset that the spool 45 that resets in the valve of resetting is connected stretch into fluid hose 3 appropriate depth, install to become to make the wiper 23 of advancing can promote to reset valve rod and promote the spool that resets.Between valve rod and the fluid hose sealing configuration should be set resetting.In the bottom of the valve housing 47 that resets the atmospheric air port 48 that communicates with valve pocket is arranged, the import 49 that communicates with valve pocket is arranged at top, and there is the outlet 47 that communicates with valve pocket at its middle part.Above-mentioned import 49 usefulness are taken over 51 and are connected with the cavity of resorption 14 of fluid power cylinder 10, also can be directly and cavity of resorption interface 18 connections of straight way valve 15.Above-mentioned outlet 50 usefulness adapter 52 keeps the cylinder chamber of the maintenance piston below of cylinder 39 to connect with fluid power.The spring 53 that the usefulness that resets is arranged in the valve pocket above the spool 45 that resets of the valve that resets.Can there be the pond of holding 54 below of atmospheric air port 48.
This double position valve is when normal working, and as shown in Figure 5, the working state of straight way valve 15, fluid power cylinder 10, main valve 1 is identical with embodiment 1.At this moment, the spool 45 that resets in the valve 44 that resets under the effect of spring 53, down is pushed into housing 47 bottoms, and the valve rod 46 that resets stretches into fluid hose 3.Fluid power keeps cylinder 39 through taking over 52, valve pocket, the import 49 of the outlet of the valve that resets 50, the spool top that resets, taking over 51, connect with the cavity of resorption 14 of fluid power cylinder 10, again through taking over 29 bidirectional modulation valve 32, the cavity of resorption interface 14 of straight way valve 15, pressure releasing passages 27, the air interface 20 that reach wherein, be communicated with atmosphere, fluid power keeps the maintenance piston 41 in the cylinder 39 to place fluid power to keep the cylinder bottom under the effect of spring 42, and the piston rod 43 through keeping piston makes the current spool 21 of straight way valve 15 remain on valve body lower portion.Under the effect of hydrodynamic pressure, the piston 11 in the fluid power cylinder 10 places the bottom of fluid power cylinder, through piston rod 12, main valve stem 6 main valve plug 7 is pushed into the working position, bottom, and internal valve 8 and fluid hose 3 are connected, and the valve that originally resets is in the normal working of control fluid.
Cleaning with the wiper fluid pipe, when wiper 23 marched to straight way valve 15, as shown in Figure 6, the working state of straight way valve 15, fluid power cylinder 10, main valve 1 was identical with embodiment 1.The valve rod 46 that resets of valve 44 of resetting this moment still stretches in fluid hose 3, its spool 45 that resets still places lower part of frame, the little pressure fluid that enters fluid power cylinder 6 cavity of resorptions 14 is through taking over 51, the import 49 of valve 44 resets, valve pocket, outlet 47, take over 52 and enter the cylinder chamber that fluid power keeps maintenance piston 41 belows of cylinder 39, make and keep piston to remain on lifting position together with the current spool 21 of straight way valve 15, to keep fluid hose 3 to the runner of fluid power cylinder 10 cavity of resorptions 14 to be channel status, make pressure fluid in the fluid hose 3 constantly enter the cavity of resorption of fluid power cylinder, piston 11 is pushed away on the fluid and is placed the top of fluid power cylinder, through piston rod 12, the main valve stem 6 of main valve 1, promote main valve plug 7, make the siphunculus 9 and fluid hose 3 identical perforations of main valve plug 7, allow the wiper of advancing can smooth and easy passing through, the valve that originally resets this moment be in the current state of wiper.
When wiper 23 marches to the valve 44 that resets, on push away the resetting during valve rod 46 of the valve 44 that resets, as shown in Figure 7, the spool 45 that resets is up, after overcoming the elastic force of spring 53, place housing 47 tops, spool 45 blocking-up that is reset of the import 49 on the housing, outlet 50 is through the valve pocket and atmospheric air port 48 connections of the spool below that resets.Fluid power keeps the fluid in the cylinder chamber of maintenance piston 41 belows in the cylinder 39, through take over 52, the valve pocket of the outlet of the valve that resets 50, the spool below that resets, hold pond 54 from what the atmospheric air port below was discharged or entered to atmospheric air port 48.Fluid power keeps the cylinder pressure release, under the effect of spring 42, keeps piston 41 to reset, promotion piston rod 43 resets together with the current spool 21 of straight way valve 15, the main valve plug 7 of fluid power cylinder 10, main valve 1 resets, and internal valve 8 and fluid hose 3 are connected, and this double position valve recovers normal working.
Embodiment 4
A kind of dual-sleeve valve with fluid-controlled pipe cleaning of the present invention, as shown in Figure 8.The structure of the fluid power cylinder 10 in main valve 1, the control gear, straight way valve 15, the valve 44 that resets is identical with embodiment 3.Its characteristics are as follows:
Above-mentioned fluid power cylinder 10 useable holder are on the valve body 2 that is packed in main valve 1 horizontally, make piston rod 12 and main valve stem 6 perpendicular.Cavity of resorption 14 usefulness of fluid power cylinder are taken over 55 and are communicated with the valve pocket of main valve 1, thereby are communicated with fluid hose 3 through the valve pocket of main valve.The external part of the piston rod 12 of fluid power cylinder is made tooth bar 56.
On the above-mentioned main valve stem 6, be shaped on chute 57 vertically and be similar spline shaft structure, on main valve stem, be fitted with the gear 58 that is meshed with above-mentioned tooth bar 56 slidably.The main valve stem lower end is made with main valve plug 7 and is common rotatable the connection, and is the screw pair transmission joint with valve gap 4, thereby with the to-and-fro motion of fluid power cylinder piston rod 12, main valve stem is made the compound motion of rotation, lifting, and main valve plug 7 is reciprocating.
The operation of this valve is substantially the same manner as Example 3.
A kind of dual-sleeve valve with fluid-controlled pipe cleaning of the present invention, as shown in figure 16.Fluid power cylinder 10 in main valve 1, the control gear, straight way valve 15, valve 44 structures that reset are identical with embodiment 3.Its characteristics are as follows:
The main valve stem 6 of above-mentioned main valve 1 is tubular-shaped structures.
The internal valve 8 of above-mentioned main valve plug 7 adopts the common external force formula valve mechanism of being controlled by external force that inner valve stem 59 is arranged, and inner valve stem is in the pore that is sleeved on main valve stem 6 rotationally, and stretches out the upper end-hole of main valve stem.Be shaped on chute 60 vertically and be similar spline shaft structure on inner valve stem, in inner valve stem upper end worm gear 61 is housed, the axis hole of worm gear is made the similar splined hole structure that matches with chute 60, make its two in transmission worm gear can be on inner valve stem slide relative.The worm screw 62 of worm gear 61 through matching links with motor 63 transmissions, links through electric lead 64 and electrical-controller 65 again.This valve is handled electrical-controller 65 through main valve stem 6 control main valves 1, through motor 63, worm screw 62, worm gear 61, inner valve stem 59 control internal valves 8.Can install on fluid hose and the electric sensor (not shown) that links of electrical-controller, by sensor fluid parameter be sent into electrical-controller, electrical-controller is controlled the internal valve operation more in view of the above.The control gear of internal valve also can be other common structure.
The internal valve of present embodiment can be an external force formula valve, as structures such as common ball valve, modulating valve, stop valve, shuttle-type stop valves, also can be the inventor's shuttle-type modulating valve and has non-return and by the structures such as shuttle-type stop valve of function.
Embodiment 6
A kind of through ball type flow controlled double-covered valve of the present invention is shown in accompanying drawing 9,10.Its fluid power cylinder 10 by main valve 1, control gear, the magnetic switch 33 of straight way valve, electrical-controller 36 are substantially the same manner as Example 1.
On the valve gap 4 of main valve, open the through hole of the valve pocket that is shaped on the cavity of resorption 14 that is communicated with the fluid power cylinder and main valve 1, the common bidirectional modulation valve 66 that can control forward and reverse flow can be installed in through hole, the cavity of resorption 14 of fluid power cylinder can be communicated with fluid hose 3 through the valve pocket of bidirectional modulation valve, main valve 1.The bidirectional modulation valve can be selected the inventor's adjustable differential flow shuttle valve for use.
The straight way valve 67 of present embodiment is common piston valve construction, can be installed on the fluid hose 3 with support, also can be installed on the main valve 1 or into a single integrated structure with main valve.The valve pocket upper end of straight way valve is connected through taking over fluid hose 3, valve pocket lower end and atmosphere are connected, also can turn on the top of Chu Chi 68 through adapter, the middle part of the valve pocket of straight way valve is connected with the epicoele 13 of fluid power cylinder 10 through taking over 69, when making the current spool 70 of straight way valve walk to the bottom of valve pocket, forming on valve pocket top can be through taking over 69 pressurizing chambers 71 that the epicoele 13 of fluid power cylinder is communicated with fluid hose 3, when current spool walked to valve pocket top, forming in the valve pocket bottom can be through taking over 69 pressure-releasing chambers 72 that the epicoele 13 of fluid power cylinder is communicated with atmosphere.The connecting rod 73 that is connected with current spool protrudes upward valve casing, between connecting rod and valve casing sealing configuration should be arranged, and there is adhesive dish 34 upper end of connecting rod.
When using the wiper fluid pipe to clear up, this valve is handled straight way valve 67 through magnetic switch 33 under the control of electrical-controller 36.When magnetic switch 33 adhesive adhesive dishes 34, mention current spool 70 through connecting rod 73, with the epicoele 13 of fluid power cylinder 10 through take over 69, the pressure-releasing chamber 72 and the ambient atmosphere of straight way valve connect, pressure fluid in the fluid hose 3 is through valve pocket, the bidirectional modulation valve 66 of main valve 1, enter the cavity of resorption 14 of fluid power cylinder 10, promote piston 11 through piston rod 12, main valve stem 6, driving main valve plug 7 rises, the siphunculus of main valve plug and fluid hose 3 coincide and connect, this valve is in the current state of wiper, allows wiper 23 smooth and easy the passing through of advancing.When magnetic switch 33 discharges adhesive dish 34, current spool 70 is descending under action of gravity, with the epicoele 13 of fluid power cylinder 10 through take over 69, the pressurizing chamber 71 and the fluid hose 3 of straight way valve connect, pressure fluid in the fluid hose 3 enters the epicoele 13 of fluid power cylinder 10, simultaneously under the effect of the pressure fluid in epicoele 13 and under the action of gravity of piston 11, piston rod 12, main valve stem 6, main valve plug 7, fluid in the cavity of resorption 14 is through the valve pocket fluid return tube 3 of bidirectional modulation valve 66, main valve 1, make main valve plug 7 descending, the internal valve of main valve plug and fluid hose 3 coincide and connect.This valve recovers the working state of control fluid.
Embodiment 7
A kind of through ball type flow controlled double-covered valve of the present invention, as shown in figure 11.Fluid power cylinder 10, the straight way valve 67 of its main valve 1 and control gear are substantially the same manner as Example 6; The magnetic switch 33 of controller, electrical-controller 36 are identical substantially with embodiment 1; Its running is substantially the same manner as Example 6.Be characterized in that controller is installed at the sensor 35 on the fluid hose 3 of postposition side of sensor 74 on preposition side's the fluid hose 3 of main valve 1 and main valve 1 in addition, and with electric lead 75, electric lead 37 respectively with 36 electric connections of electrical-controller.The sensor is selected the electromagnetism sensing type sensor of the common structure of the effect of matching with wiper 23 for use.
Above-mentioned two sensors 74,75 transmits the position that the wiper of advancing arrives preposition side of main valve and rearmounted side to electrical-controller 36 respectively, controls main valves 1 by electrical-controller through straight way valve 67 again, the rising and the decline of control main valve plug 7.As required the internal valve 8 of main valve plug 7 is connected with fluid hose 3, the unlatching of control main valve 1, closed and aperture, realize the control of convection cell; Or the siphunculus 9 of main valve plug 7 connected with fluid hose 3, realize the current function of wiper.
A kind of through ball type flow controlled double-covered valve of the present invention, shown in Figure 12,13, fluid power cylinder 10, the straight way valve 67 of its main valve 1 and control gear are substantially the same manner as Example 6; Its running is identical substantially with embodiment 6.The controller that is characterized in straight way valve has lever.
Above-mentioned lever 76, hinge is associated on the bearing 77.Bearing can be packed on the fluid hose 3.Each hinge of lever front end and back end is associated with push rod 78 and push rod 79.Article two, push rod inserts fluid hose 3 separately, between push rod and fluid hose sealing configuration should be set.The spacing of two push rods is determined according to the gait of march of wiper and the movement velocity of fluid power cylinder piston, to guarantee the time enough of wiper by main valve.The front end of lever 76 cuts with scissors connection mutually with the current valve rod 80 of straight way valve 67.Thereby constitute the Lever type sensing mechanism.In addition, also can be with the rear end of lever and current valve rod hinge connection, when adopting this structure, straight way valve should be arranged to its pressurizing chamber 71 that can be communicated with fluid hose in the bottom of valve pocket, and the pressure-releasing chamber 72 that can be communicated with atmosphere is on the top of valve pocket.The Lever type sensing mechanism can have guard shield 81 to be protected.
The above-mentioned Lever type sensing mechanism of this valve has and the similar function of embodiment 7 sensor.Cleaning with the wiper fluid pipe, when wiper 23 marches to push rod 78, as shown in figure 13, to push away on the push rod 78, lever 76 rotates, push rod 79 descends, through lever 76, current valve rod 80, on push away current spool 70, pressure-releasing chamber 72 is connected the epicoele 13 of fluid power cylinder 10 with atmosphere, release fluid in the epicoele, pressure fluid in the fluid hose is through the valve pocket of main valve 1, bidirectional modulation valve 66 enters the cavity of resorption 14 of fluid power cylinder, and piston 11 rises, through piston rod 12, main valve stem 6 promotes main valve plug 7, the siphunculus 9 of main valve plug coincide with fluid hose 3 and connects, and this valve places the wiper state that passes through.
When wiper 23 marches to push rod 79, as shown in figure 12, to push away on the push rod 79, then lever 76 rotates, push rod 78 descends, driving current spool 70 declines through current valve rod 80 resets, pressurizing chamber 71 is connected the epicoele 13 of fluid power cylinder 10 with fluid hose 3, pressure fluid enters the epicoele 13 of fluid power cylinder slowly, and piston 11 descends, and promotion piston rod 12, main valve stem 6 are fallen main valve plug 7 slowly, after wiper passes through main valve, close the current state of wiper, the internal valve 8 and the fluid hose 3 of main valve plug are connected, recover the working state of the control fluid of this valve.
A kind of through ball type flow controlled double-covered valve of the present invention, as shown in figure 14.The fluid power cylinder 10 of its main valve 1 and control gear, straight way valve 67, the lever 76 of controller and the operation of valve are substantially the same manner as Example 8, and its characteristics are as follows:
Above-mentioned fluid power cylinder 10 useable holder are on the valve body 2 that is packed in main valve 1 horizontally, make piston rod 12 and main valve stem 6 perpendicular.Be communicated with taking over 55 between the valve pocket of the cavity of resorption of fluid power cylinder and main valve 1.Take on 55 the bidirectional modulation valve can be installed.The external part of the piston rod 12 of fluid power cylinder is made tooth bar 56.
On the above-mentioned main valve stem 6, be shaped on chute 57 vertically and be similar spline shaft structure, on main valve stem, be fitted with the gear 58 that is meshed with above-mentioned tooth bar 56 slidably.The main valve stem lower end is made with main valve plug 7 and is common rotatable the connection, and is the screw pair transmission joint with valve gap 4, thereby with the to-and-fro motion of fluid power cylinder piston rod 12, main valve stem is made the compound motion of rotation, lifting, and main valve plug 7 is reciprocating.
A kind of through ball type flow controlled double-covered valve of the present invention, as shown in figure 15.The fluid power cylinder 10 of its main valve 1 and control gear, the structure of internal valve 8, inner valve stem 59 is identical with embodiment 5 with the structure of worm gear 61 worm screws, 62 driving mechanisms and controller 65 thereof, straight way valve 67, the lever 76 of controller is substantially the same manner as Example 8.Be characterized in installing and the electrical-controller 65 electric sensors that link 82 on fluid hose 3, through electric lead 83, fluid parameter sent into electrical-controller 65 by sensor 82, electrical-controller is more in view of the above through Worm and worm-wheel gearing, and control internal valve 8 moves.The control gear of internal valve also can be other common structure.
Claims (6)
1, a kind of dual-sleeve valve with fluid-controlled pipe cleaning, comprise the valve body (2) that can be communicated with fluid hose (3), the main valve (1) of the main valve stem (6) that links with main valve plug (7) in the valve body, main valve plug has internal valve (8) and siphunculus (9), the control gear of control main valve with internal valve and siphunculus and fluid hose connection arranged, this control gear has fluid power cylinder (10), the piston rod of fluid power cylinder (12) links with the main valve stem transmission, the straight way valve (15) that the fluid power cylinder is communicated with fluid hose is arranged, it is characterized in that having the controller of straight way valve, controller has the fluid power that links with the straight way valve transmission to keep cylinder (39), and the valve that resets (44) that keeps cylinder to be communicated with straight way valve fluid power is arranged.
2, dual-sleeve valve with fluid-controlled pipe cleaning according to claim 1, it is characterized in that said straight way valve (15) is two multiple-way valves, in the current spool (21) of straight way valve, have walkway (24) that the cavity of resorption (14) of the piston of fluid power cylinder below and fluid hose (3) are connected, and putting of simultaneously epicoele (13) of the piston top of fluid power cylinder and atmosphere being connected press road (25), reset (26) that above-mentioned epicoele and fluid hose are connected are arranged, and simultaneously with the pressure releasing passages (27) of above-mentioned cavity of resorption and atmosphere connection.
3, dual-sleeve valve with fluid-controlled pipe cleaning according to claim 1 and 2, it is characterized in that the said valve that resets (44) is the two-position three way structure, the valve rod that resets (46) of the current valve rod (22) of said straight way valve and the valve that resets is fitted on the fluid hose (3) at the place ahead of main valve (1) and rear with the wiper of advancing (23) respectively with matching.
4, dual-sleeve valve with fluid-controlled pipe cleaning according to claim 1 and 2 is characterized in that in the adapter (28,29) between said fluid power cylinder (10) and straight way valve (15) bidirectional modulation valve (31,32) being arranged.
5, dual-sleeve valve with fluid-controlled pipe cleaning according to claim 3 is characterized in that in the adapter (28,29) between said fluid power cylinder (10) and straight way valve (15) bidirectional modulation valve (31,32) being arranged.
6, dual-sleeve valve with fluid-controlled pipe cleaning according to claim 1, the piston rod (12) that it is characterized in that said fluid power cylinder (10) is coaxial line with main valve stem (6) and connects, or the perpendicular rack-and-pinion transmission joint that is.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99114869A CN1133028C (en) | 1999-05-18 | 1999-05-18 | Dual-sleeve valve with fluid-controlled pipe cleaning |
| PCT/CN2000/000115 WO2000070251A1 (en) | 1999-05-18 | 2000-05-12 | A fluid control double position valve for pig |
| AU45346/00A AU4534600A (en) | 1999-05-18 | 2000-05-12 | A fluid control double position valve for pig |
| CNB008064792A CN1164881C (en) | 1999-05-18 | 2000-05-12 | A fluid control double position valve for purging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99114869A CN1133028C (en) | 1999-05-18 | 1999-05-18 | Dual-sleeve valve with fluid-controlled pipe cleaning |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1274051A CN1274051A (en) | 2000-11-22 |
| CN1133028C true CN1133028C (en) | 2003-12-31 |
Family
ID=5277904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99114869A Expired - Fee Related CN1133028C (en) | 1999-05-18 | 1999-05-18 | Dual-sleeve valve with fluid-controlled pipe cleaning |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN1133028C (en) |
| AU (1) | AU4534600A (en) |
| WO (1) | WO2000070251A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003016773A1 (en) * | 2001-08-15 | 2003-02-27 | Link Pipe, Inc. | Universal access chamber and method for the insertion of treatment devices and materials into an in-service pipeline |
| EP1729053B1 (en) * | 2005-05-31 | 2009-02-04 | I.S.T. Industrie Service Technologie Beratungs-und Beteiligungsgesellschaft mbh | Piggable device for a plant for conveying a product through a pipeline |
| CN102425582B (en) * | 2011-12-27 | 2015-02-25 | 徐州重型机械有限公司 | Hydraulic control valve and getting-off support leg control system of firefighting vehicle with hydraulic control valve |
| CN105402602B (en) * | 2015-12-16 | 2018-01-09 | 沈阳航天新光集团有限公司 | A kind of valve gear for supplementing air accumulator gas |
| WO2019059040A1 (en) * | 2017-09-25 | 2019-03-28 | 株式会社フジキン | Valve device, adjustment information generating method, flow adjustment method, fluid control device, flow control method, semiconductor manufacturing device and semiconductor manufacturing method |
| CN107816566B (en) * | 2017-12-06 | 2024-05-31 | 宁波日安阀门有限公司 | Combined valve suitable for use in gas pipeline |
| CN108317297B (en) * | 2017-12-19 | 2023-06-16 | 天津智源机械制造股份有限公司 | Energy-saving flow valve |
| CN108772391B (en) * | 2018-06-20 | 2023-08-18 | 陕西安控科技有限公司 | Intelligent ball receiving device and ball receiving method |
| CN111219514B (en) * | 2020-03-09 | 2021-01-26 | 刘会 | Ultramicro-pressure self-operated pressure regulating valve |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2113788C3 (en) * | 1971-03-22 | 1979-06-21 | Karl Fredrik Oslo Ellingsen | Valve changeover device |
| CN1102601A (en) * | 1993-11-06 | 1995-05-17 | 挪威海德罗公司 | Pig system for sending and receiving pigs in a pipeline system |
| GB2317430B (en) * | 1996-09-24 | 2000-09-06 | Apv Uk Plc | A pigging system for pigging at least a section of pipework |
| CN2293690Y (en) * | 1997-03-13 | 1998-10-07 | 梁佩生 | Hydraulic opening & closing device for valve |
| CN2356202Y (en) * | 1998-12-11 | 1999-12-29 | 侯虞城 | Differential pressure valve |
-
1999
- 1999-05-18 CN CN99114869A patent/CN1133028C/en not_active Expired - Fee Related
-
2000
- 2000-05-12 AU AU45346/00A patent/AU4534600A/en not_active Abandoned
- 2000-05-12 WO PCT/CN2000/000115 patent/WO2000070251A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2000070251A1 (en) | 2000-11-23 |
| AU4534600A (en) | 2000-12-05 |
| CN1274051A (en) | 2000-11-22 |
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| AR01 | Abandonment of patent right to avoid double patenting |
According to article 9 of the patent law and article 13 of the detailed rules for the implementation of the patent law: The invention patent of 99114869.X is authorized in this issue. At the same time, the 99231644.8 utility model patent shall be given up, and the patent right abandonment announcement shall be made on the 19 edition of the 53 edition of the utility model. According to article 9 of the patent law and article 13 of the detailed rules for the implementation of the patent law: The invention patent of 99114869.X is authorized in this issue. At the same time, the patent of 99231643.X utility model should be given up, and the patent right to abandon the announcement shall be given in the 19 edition of the 53 issue of the utility model. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |