CN112240422B - Opening and closing method of valve - Google Patents
Opening and closing method of valve Download PDFInfo
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- CN112240422B CN112240422B CN202011102407.7A CN202011102407A CN112240422B CN 112240422 B CN112240422 B CN 112240422B CN 202011102407 A CN202011102407 A CN 202011102407A CN 112240422 B CN112240422 B CN 112240422B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/46—Mechanical actuating means for remote operation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a method for opening and closing a valve, wherein a U-shaped rotating frame is vertically arranged on the side surface of a fixed sealing ring by rotating a valve rod by 90 degrees, and in the process that the U-shaped rotating frame is vertical to the side surface of the fixed sealing ring by the valve rod, the U-shaped rotating frame drives a limiting inserted rod to move towards an inflow pipeline end, the limiting inserted rod drives a central sealing disc to move towards the inflow pipeline end, so that the central sealing disc and a movable sealing ring, the movable sealing ring and a movable sealing ring which are correspondingly matched with the movable sealing ring and the fixed sealing ring are sequentially separated, and the valve is opened; make the laminating of U-shaped rotating turret on fixed seal ring leading flank through 90 rotating valve rods, at the process of the laminating of U-shaped rotating turret and fixed seal ring leading flank, spacing inserted bar drives central sealed dish and moves to fixed seal ring center, makes fixed seal ring, many movable seal ring and central sealed dish seal in proper order and seals to insert and close and constitute a closed sealed valve body subassembly, with valve body shutoff, the valve realizes closed.
Description
Technical Field
The invention relates to the technical field of valve equipment, in particular to a method for opening and closing a valve.
Background
The butterfly valve, the ball valve, the plug valve etc. only need rotate 90 degrees and can accomplish the valve of opening, the valve of closing, and governing valve, the gate valve, stop valve etc. need rotate the valve rod many times and open, the valve of operation closes, only need rotate 90 degrees and can accomplish the valve and the valve executor cooperation of opening, close, generally in the operating mode use technology and pipeline application system under emergency, when emergency appears, simultaneous control system loses the power again, or during the air supply, the single-action actuating mechanism can automatic re-setting, drive valve to predesigned fail safe position, thereby reduce whole device potential danger to minimumly. And the valve which rotates the valve rod for opening and closing operations for many times can not be matched with the valve actuator to realize emergency opening and closing.
The valves which can be opened and closed only by rotating 90 degrees are similar to those used on some transmission pipelines with high flow rate, extra-high pressure and high sealing performance requirements, the valves have the problems of insufficient sealing performance and large opening and closing power, and the valves can not be closed timely under the impact of large-flow rate and extra-high pressure fluid, so that safety accidents are caused.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a valve opening and closing method, and solves the problems that similar valves which can be opened and closed only by rotating 90 degrees are used on a plurality of transmission pipelines with high flow rate, extra-high pressure and high sealing performance requirements, and the valves have insufficient sealing performance and high opening and closing power.
The invention is realized by the following technical scheme:
a method for opening and closing a valve comprises the following steps:
and 5, enabling the U-shaped rotating frame to be attached to the front side face of the fixed sealing ring through a 90-degree rotating valve rod, driving the central sealing disc to move towards the center of the fixed sealing ring by the limiting insertion rod in the process of attaching the U-shaped rotating frame to the front side face of the fixed sealing ring, enabling the fixed sealing ring, the plurality of movable sealing rings and the central sealing disc to be sequentially sealed and inserted to form a closed sealing valve body assembly, plugging the valve body, and enabling the valve to be closed.
The valve opening and closing method of the invention is the same as a butterfly valve, a ball valve, a plug valve and the like, the valve opening and closing can be completed only by rotating 90 degrees, the valve can be matched with an actuator, and when an emergency occurs and a control system loses a power supply or an air source, the actuator can automatically reset and close the valve.
The valve rod on the upper side of the U-shaped rotating frame penetrates through the valve pipe body in a sealing mode, a shifting fork block is arranged at the top of the valve rod, a strip hole is formed in the shifting fork block, the actuator and the valve driver are installed on the valve pipe body, a driving telescopic shaft of the valve driver is coaxially connected with an executing telescopic shaft of the actuator, a shifting shaft is arranged on the driving telescopic shaft, and the shifting shaft is inserted into the strip hole in the shifting fork block;
the valve driver is controlled to extend the driving telescopic shaft, the driving telescopic shaft drives the valve rod to rotate 90 degrees through the shifting shaft and the shifting fork block, the U-shaped rotating frame is vertically arranged with the side surface of the fixed sealing ring, the valve is opened, and meanwhile, the executing telescopic shaft of the actuator retracts to store energy;
and controlling a valve driver to enable the driving telescopic shaft to retract, extending the executing telescopic shaft of the actuator, driving the telescopic shaft to drive the valve rod to rotate 90 degrees through the shifting shaft and the shifting fork block, enabling the U-shaped rotating frame to be attached to the front side surface of the fixed sealing ring, and closing the valve.
Furthermore, a vertebral body block is arranged on the front side surface of the connecting block.
Furthermore, at least two sliding blocks are uniformly distributed and arranged around the outer annular surfaces of the movable sealing rings and the central sealing disc, the sliding blocks are of T-shaped structures, limiting platforms are arranged on the outer side surfaces of the tail ends of the sliding blocks, sliding grooves are correspondingly arranged on the inner annular surfaces of the movable sealing rings and the fixed sealing rings and on the inner annular surfaces of the movable sealing rings and the fixed sealing rings, the bottom surfaces of the sliding grooves are horizontal planes, the sliding grooves are also of T-shaped structures, and limiting grooves matched with the limiting platforms are arranged on the bottom surfaces of the sliding grooves.
Furthermore, sealing rings are arranged on the outer annular surfaces of the movable sealing ring and the central sealing disc and on the inner annular surfaces of the movable sealing ring and the fixed sealing ring.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the opening and closing method of the valve is the same as a butterfly valve, a ball valve, a plug valve and the like, the valve can be opened and closed only by rotating 90 degrees, the valve can be matched with an actuator, and when an emergency occurs and a control system loses a power supply or an air source, an actuating mechanism can automatically reset to close the valve;
2. the invention relates to a method for opening and closing a valve.A valve body is creatively formed by combining a fixed sealing ring, a plurality of movable sealing rings and a central sealing disc, wherein the inner annular surface of the fixed sealing ring, the inner annular surface and the outer annular surface of the movable sealing rings and the inner annular surface of the central sealing disc are all sealing connection conical table surfaces of which the large ends flow into a pipeline end; when the valve is in a closed state, the valve cannot be pressed open no matter how much pressure intensity exists in the pipeline, but the sealing is tighter, when the valve body of the multi-ring nested structure needs emergency closing, as the pressure of fluid exists on the front side surfaces of the movable sealing rings and the central sealing disc, the valve can be closed by the actuator only needing a small acting force; similarly, when the valve needs to be opened, the U-shaped rotating frame and the limiting insertion rod firstly draw the central sealing disc, the area of the central sealing disc is smaller relative to the whole valve body, and meanwhile, the front side surface of the central sealing disc is provided with the cone block, so that the pressure action of fluid on the central sealing disc is smaller, the valve driver can open the central sealing disc only by small force, and once the central sealing disc is opened, the movable sealing ring and the movable sealing ring, the movable sealing ring and the fixed sealing ring which are correspondingly matched are easier to open; the structure of the actuator can be very small, the actuator is not 1-2 meters long like the actuator on the existing large-diameter pipeline, and a valve driver can also adopt low-power equipment, so that the use cost of the whole valve is greatly reduced;
3. the invention relates to a valve opening and closing method, wherein a valve body linkage part comprises a U-shaped rotating frame and a limiting insertion rod, and how to realize the telescopic movement of a central sealing disc by rotating the U-shaped rotating frame by 90 degrees is not easy to solve.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic view of the external structure of a valve according to the present invention;
FIG. 2 is a schematic top view of the valve according to the present invention;
FIG. 3 is a schematic structural diagram of a valve in an open state according to the present invention;
FIG. 4 is a schematic structural diagram of a valve in a closed state according to the present invention;
FIG. 5 is a schematic side view of a valve according to the present invention in a closed state;
FIG. 6 is a schematic view of the sliding groove arrangement according to the present invention;
FIG. 7 is a schematic view of the slider structure of the present invention;
FIG. 8 is a schematic view of the structure of the sliding slot and the sliding block of the present invention;
reference numbers and corresponding part names in the figures:
1-valve pipe body, 2-pipeline joint, 3-fixed sealing ring, 4-movable sealing ring, 5-central sealing disc, 6-connecting block, 7-U-shaped rotating frame, 8-limit inserted rod, 9-valve rod, 10-limit sleeve, 11-sleeve, 12-bottom frame, 13-limit hole, 14-actuator, 15-valve driver, 16-shifting fork block, 17-strip hole, 18-drive telescopic shaft, 19-execution telescopic shaft, 20-shifting shaft, 21-vertebra block, 22-limit table, 23-limit strip groove, 24-sliding groove and 25-sliding block.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Examples
As shown in fig. 1 to 8, the opening and closing method of a valve of the present invention includes the steps of:
the U-shaped rotating frame 7 is vertically arranged on the side face of the fixed sealing ring 3 by rotating the valve rod 9 by 90 degrees, in the process that the valve rod 9 enables the U-shaped rotating frame 7 to be vertical to the side face of the fixed sealing ring 3, the U-shaped rotating frame 7 drives the limiting insertion rod 8 to move towards the inflow pipeline end, the limiting insertion rod 8 drives the central sealing disc 5 to move towards the inflow pipeline end, so that the central sealing disc 5 and the movable sealing ring 4, the movable sealing ring 4 and the movable sealing ring 4 which are correspondingly matched with each other, and the movable sealing ring 4 and the fixed sealing ring 3 are sequentially separated, and the valve is opened;
and 5, controlling a valve driver 15 to enable a driving telescopic shaft 18 to retract, extending an executing telescopic shaft 19 of the actuator 14, driving the telescopic shaft 18 to drive a valve rod 9 to rotate 90 degrees through a shifting shaft 20 and a shifting fork block 16, enabling the U-shaped rotating frame 7 to be attached to the front side face of the fixed sealing ring 3, and closing the valve.
Make the laminating of U-shaped rotating turret 7 on fixed seal ring 3 leading flank through 90 rotating valve rod 9, at the process of the laminating of U-shaped rotating turret 7 with 3 leading flanks of fixed seal ring, spacing inserted bar 8 drives central sealed dish 5 and removes to fixed seal ring 3 center, makes fixed seal ring 3, many movable seal ring 4 and central sealed dish 5 seal in proper order and inserts and close constitution a closed sealed valve body subassembly, with 1 shutoff of valve body, the valve realizes closedly.
By adopting the method, the valve opening and closing method can complete the opening and closing of the valve only by rotating 90 degrees like a butterfly valve, a ball valve, a plug valve and the like, can be matched with an actuator, and can automatically reset and close the valve when a control system loses power supply or air source in emergency.
The valve shown in fig. 1-8 comprises a valve tube body 1, a sealing valve body assembly and a valve body linkage member, wherein two ends of the valve tube body 1 are respectively provided with a pipeline joint 2, the pipeline joint 2 at one end of the valve tube body 1 is connected with an inflow pipeline, the inflow pipeline is a front side surface, and the pipeline joint 2 at the other end of the valve tube body 1 is connected with an outflow pipeline; the diameter of the valve tube body 1 is generally more than 2 times larger than that of the inflow pipeline and the outflow pipeline, because when the valve is opened, the flow area of the valve tube body 1 is only the gaps between the central sealing disk 5 and the movable sealing ring 4, between the movable sealing ring 4 and the movable sealing ring 4 correspondingly matched with the movable sealing ring 4 and between the movable sealing ring 4 and the fixed sealing ring 3, and the effective flow area of the gaps is larger than or equal to the flow area of the inflow pipeline and the outflow pipeline.
The sealing valve body assembly comprises a fixed sealing ring 3, a plurality of movable sealing rings 4 and a central sealing disc 5, in the implementation, the number of the movable sealing rings 4 is 2, the number of the movable sealing rings 4 is generally set by considering the inner diameter of a valve pipe body 1 and the thickness of the movable sealing rings 4, the 2-4 movable sealing rings 4 are generally reasonably arranged, the outer annular surface of the fixed sealing ring 3 is fixedly connected to the inner wall of the valve pipe body 1, the inner annular surface of the fixed sealing ring 3, the inner annular surface and the outer annular surface of the movable sealing ring 4 and the inner annular surface of the central sealing disc 5 are all sealing connection conical table surfaces with large ends flowing into a pipeline end, and the movable sealing rings 4 and the central sealing disc 5 can only move and stretch towards the inflow pipeline setting end; the movable sealing rings 4 are sequentially connected in a sealing and inserting manner from small to large, the central sealing disc 5 can be inserted in the corresponding movable sealing ring 4 in a sealing manner through the outer annular surface, and the corresponding movable sealing ring 4 can be inserted in the fixed sealing ring 3 in a sealing manner through the outer annular surface; between central sealed dish 5 and the activity sealing ring 4, between activity sealing ring 4 and the activity sealing ring 4 that corresponds the complex, all through many mating sliding tray 24 and sliding block 25 swing joint between activity sealing ring 4 and the fixed seal ring 3, sliding tray 24 and sliding block 25 mainly play connect with spacing effect.
The invention relates to a valve opening and closing method.A valve body is creatively formed by combining a fixed sealing ring 3, a plurality of movable sealing rings 4 and a central sealing disc 5, wherein the inner annular surface of the fixed sealing ring 3, the inner annular surface and the outer annular surface of the movable sealing rings 4 and the inner annular surface of the central sealing disc 5 are all sealing connection conical table surfaces of which the large ends flow into a pipeline end; when the valve is in a closed state, the valve cannot be pressed open no matter how much pressure intensity exists in the pipeline, but the sealing is tighter, when the valve body of the multi-ring nested structure needs to be closed emergently, as the pressure of fluid exists on the front side surfaces of the movable sealing rings 4 and the central sealing disc 5, the actuator 14 can close the valve only by small acting force; similarly, when the valve needs to be opened, the central sealing disk 5 is firstly drawn by the U-shaped rotating frame 7 and the limiting insertion rod 8, the area of the central sealing disk 5 is smaller than that of the whole valve body, and meanwhile, the conical body block 21 is arranged on the front side surface of the central sealing disk 5, so that the pressure action of fluid on the central sealing disk 5 is smaller, the central sealing disk 5 can be opened by the valve driver 15 with small force, and once the central sealing disk 5 is opened, the movable sealing ring 4 and the movable sealing ring 4, the movable sealing ring 4 and the fixed sealing ring 3 which are correspondingly matched are easier to open; thus, the actuator 14 can be made small, unlike the existing actuator on a large-diameter pipeline which is 1-2 meters long, and the valve driver 15 can also adopt a low-power device, thereby greatly reducing the use cost of the whole valve.
The front side face of the central sealing disc 5 is provided with a connecting block 6, when the valve is closed, the connecting block 6 protrudes out of the front side face of a valve body formed by the fixed sealing ring 3, the plurality of movable sealing rings 4 and the central sealing disc 5, the front side face of the connecting block 6 is provided with a cone block 21, and the cone block 21 is mainly used for reducing the resistance of fluid to the central sealing disc 5 when the valve is opened. The valve body linkage piece comprises a U-shaped rotating frame 7 and a limiting insertion rod 8, coaxial valve rods 9 are vertically and respectively arranged on the outer sides of two ends of the U-shaped rotating frame 7, the two valve rods 9 are installed on the front side face of the fixed sealing ring 3 through a limiting sleeve 10, the valve rods 9 and the vertical center line of the fixed sealing ring 3 are eccentrically and parallelly arranged, the vertical center line distance between the valve rods 9 and the fixed sealing ring 3 is about 15mm more than the radius of the central sealing disc 5, the structure and the size of the U-shaped rotating frame 7 need to be considered globally, the 90-degree rotating track of the U-shaped rotating frame 7 cannot interfere with other equipment, if interference exists, the arc structure and the length of two side frames of the U-shaped rotating frame 7 can be changed for processing, one end of the limiting insertion rod 8 is sleeved on the bottom frame 12 of the U-shaped rotating frame 7 through a sleeve 11, the other end of the limiting insertion rod 8 is inserted into a limiting hole 13 in a sealing disc 6, the U-shaped rotating frame 7 is enabled to be attached to the front side face of the fixed sealing ring 3 through the valve rod 9, in the process of attaching of the U-shaped rotating frame 7 to the front side face of the fixed sealing ring 3, the limiting insertion rod 8 drives the fixed sealing ring 5 to move towards the fixed sealing ring 3, and enable a plurality of the fixed sealing ring 3 to be closed valve body to form a closed sealing ring assembly, and a plurality of the valve body 4 is achieved; make U-shaped rotating turret 7 and 3 side vertical settings of fixed seal ring through 90 rotating valve rod 9, make U-shaped rotating turret 7 and 3 side vertical processes of fixed seal ring at valve rod 9, spacing inserted bar 8 drives central sealed dish 5 and moves to the inflow pipeline end, makes central sealed dish 5 and activity sealing ring 4, activity sealing ring 4 and correspond complex activity sealing ring 4, activity sealing ring 4 and fixed seal ring 3 separation, the valve is realized opening.
The invention relates to a valve opening and closing method, wherein a valve body linkage part comprises a U-shaped rotating frame 7 and a limiting insertion rod 8, and how to realize the telescopic movement of a central sealing disc 5 by rotating the U-shaped rotating frame 7 by 90 degrees is not easy to solve.
The valve structure of the invention also comprises an actuator 14 and a valve driver 15, wherein the actuator 14 and the valve driver 15 are common parts on the existing valve, and the type and the size of the adopted parts are strict standards, the invention is not detailed any more, a valve rod 9 on the upper side of the U-shaped rotating frame 7 passes through the valve pipe body 1 in a sealing way, a shifting fork block 16 is arranged at the top of the valve rod 9, a strip hole 17 is arranged on the shifting fork block 16, the actuator 14 and the valve driver 15 are arranged on the valve pipe body 1, a driving telescopic shaft 18 of the valve driver 15 is coaxially connected with an execution telescopic shaft 19 of the actuator 14, a shifting shaft 20 is arranged on the driving telescopic shaft 18, and the shifting shaft 20 is inserted in the strip hole 17 on the shifting fork block 16.
At least two sliding blocks 25 are uniformly arranged on the outer annular surfaces of the movable sealing rings 4 and the central sealing disc 5 in a surrounding mode, in this example, 4 sets of sliding grooves 24 and sliding blocks 25 are adopted, each sliding block 25 is of a T-shaped structure, a limiting table 22 is arranged on the outer side surface of the tail end of each sliding block 25, the sliding grooves 24 are arranged on the inner annular surfaces of the movable sealing rings 4 and the fixed sealing rings 3 corresponding to the sliding blocks 25, the bottom surfaces of the sliding grooves 24 are horizontal planes, the sliding grooves 24 are also of T-shaped structures, and limiting strip grooves 23 matched with the limiting tables 22 are arranged on the bottom surfaces of the sliding grooves 24. The sliding groove 24 and the sliding block 25 do not need to adopt a T-shaped structure, the lath can be limited as long as each sealing block can be limited not to deflect or incline when stretching, the limiting table 22 and the limiting strip groove 23 are necessarily arranged, the extending length of each sealing block can be limited through the limiting table 22 and the limiting strip groove 23, the limiting strip groove 23 is not through on the bottom surface of the sliding groove 24, and thus the movement is limited when the limiting table 22 abuts against the side edge of the limiting strip groove 23.
And sealing rings are arranged on the outer ring surfaces of the movable sealing ring 4 and the central sealing disc 5 and on the inner ring surfaces of the movable sealing ring 4 and the fixed sealing ring 3. When the fixed sealing ring 3, the plurality of movable sealing rings 4 and the central sealing disc 5 are matched very precisely, only a sealing coating needs to be coated on the contact surface, the sealing ring or the sealing gasket is also a common sealing means, if the sealing ring or the sealing gasket is adopted, the arrangement positions of the sliding groove 24 and the sliding block 25 need to be matched, the sliding block 25 is generally arranged on a half annular surface on the rear side of the outer annular surface, and the sliding groove 24 is correspondingly arranged on a half annular surface on the rear side of the inner annular surface, so that when the inner annular surface and the outer annular surface are matched in a sealing way, the common annular surfaces are matched smoothly, the sealing connection is facilitated, and the coating or the sealing equipment can be arranged.
The valve opening and closing method provided by the invention is the same as a butterfly valve, a ball valve, a plug valve and the like, the valve opening and closing can be completed only by rotating 90 degrees, the valve can be matched with an actuator, and when a control system loses power or an air source in an emergency, the actuator can automatically reset and close the valve.
The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only examples of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (5)
1. A method for opening and closing a valve is characterized by comprising the following steps:
step 1, respectively arranging pipeline joints (2) at two ends of a valve pipe body (1), connecting the pipeline joint (2) at one end of the valve pipe body (1) with an inflow pipeline, and connecting the pipeline joint (2) at the other end of the valve pipe body (1) with an outflow pipeline;
step 2, arranging a sealing valve body assembly comprising a fixed sealing ring (3), a plurality of movable sealing rings (4) and a central sealing disc (5), wherein the outer annular surface of the fixed sealing ring (3) is fixedly connected to the inner wall of the valve pipe body (1), and the inner annular surface of the fixed sealing ring (3), the inner annular surface and the outer annular surface of the movable sealing rings (4) and the inner annular surface of the central sealing disc (5) are all sealing connection conical table surfaces with large ends flowing into the pipeline end; the movable sealing rings (4) are sequentially connected in a sealing and inserting way from small to large, the central sealing disc (5) can be inserted in the corresponding movable sealing ring (4) in a sealing way through the outer annular surface, and the corresponding movable sealing ring (4) can be inserted in the fixed sealing ring (3) in a sealing way through the outer annular surface; the center sealing disc (5) is movably connected with the movable sealing ring (4), the movable sealing ring (4) is correspondingly matched with the movable sealing ring (4), and the movable sealing ring (4) is movably connected with the fixed sealing ring (3) through a plurality of sliding grooves (24) and sliding blocks (25) which are matched in pairs; the front side surface of the central sealing disc (5) is provided with a connecting block (6);
step 3, arranging a valve body linkage part comprising a U-shaped rotating frame (7) and a limiting insertion rod (8), wherein coaxial valve rods (9) are vertically and respectively arranged on the outer sides of two ends of the U-shaped rotating frame (7), the two valve rods (9) are installed on the front side surface of the fixed sealing ring (3) through limiting sleeves (10), the valve rods (9) and the vertical center line of the fixed sealing ring (3) are arranged in parallel, one end of the limiting insertion rod (8) is sleeved on an underframe (12) of the U-shaped rotating frame (7) through a sleeve (11), and the other end of the limiting insertion rod (8) is inserted into a limiting hole (13) in the connecting block (6);
step 4, enabling the U-shaped rotating frame (7) and the side face of the fixed sealing ring (3) to be vertically arranged by rotating the valve rod (9) by 90 degrees, enabling the U-shaped rotating frame (7) and the side face of the fixed sealing ring (3) to be vertical in the process of enabling the valve rod (9) to enable the U-shaped rotating frame (7) and the side face of the fixed sealing ring (3) to be vertical, enabling the U-shaped rotating frame (7) to drive the limiting insertion rod (8) to move towards the inflow pipeline end, enabling the limiting insertion rod (8) to drive the central sealing disc (5) to move towards the inflow pipeline end, enabling the central sealing disc (5) and the movable sealing ring (4), the movable sealing ring (4) and the movable sealing ring (4) which are correspondingly matched to be sequentially separated from the fixed sealing ring (3), and enabling the valve to be opened;
step 5, the U-shaped rotating frame (7) is attached to the front side face of the fixed sealing ring (3) through the 90-degree rotating valve rod (9), in the process that the U-shaped rotating frame (7) is attached to the front side face of the fixed sealing ring (3), the limiting insertion rod (8) drives the central sealing disc (5) to move towards the center of the fixed sealing ring (3), the movable sealing rings (4) and the central sealing disc (5) are sequentially sealed and inserted to form a closed sealing valve body assembly, the valve body (1) is blocked, and the valve is closed.
2. A method of opening and closing a valve as defined in claim 1, wherein: the valve rod (9) on the upper side of the U-shaped rotating frame (7) penetrates through the valve pipe body (1) in a sealing mode, a shifting fork block (16) is arranged at the top of the valve rod (9), a strip hole (17) is formed in the shifting fork block (16), the actuator (14) and the valve driver (15) are installed on the valve pipe body (1), a driving telescopic shaft (18) of the valve driver (15) is coaxially connected with an execution telescopic shaft (19) of the actuator (14), a shifting shaft (20) is arranged on the driving telescopic shaft (18), and the shifting shaft (20) is inserted into the strip hole (17) in the shifting fork block (16);
a valve driver (15) is controlled to extend a driving telescopic shaft (18), the driving telescopic shaft (18) drives a valve rod (9) to rotate 90 degrees through a shifting shaft (20) and a shifting fork block (16), a U-shaped rotating frame (7) is vertically arranged with the side surface of the fixed sealing ring (3), the valve is opened, and an executing telescopic shaft (19) of an actuator (14) retracts to store energy;
and controlling a valve driver (15) to enable a driving telescopic shaft (18) to retract, extending an executing telescopic shaft (19) of the actuator (14), driving the telescopic shaft (18) to drive a valve rod (9) to rotate 90 degrees through a shifting shaft (20) and a shifting fork block (16), enabling a U-shaped rotating frame (7) to be attached to the front side surface of the fixed sealing ring (3), and closing the valve.
3. A method of opening and closing a valve according to claim 1, wherein: the front side surface of the connecting block (6) is provided with a vertebral body block (21).
4. A method of opening and closing a valve as defined in claim 1, wherein: at least two sliding blocks (25) are uniformly arranged on the outer annular surfaces of the movable sealing rings (4) and the central sealing disc (5) in a surrounding mode, the sliding blocks (25) are of a T-shaped structure, a limiting platform (22) is arranged on the outer side surface of the tail end of each sliding block (25), sliding grooves (24) are formed in the inner annular surfaces of the movable sealing rings (4) and the fixed sealing rings (3) and correspond to the sliding blocks (25), the bottom surfaces of the sliding grooves (24) are horizontal planes, the sliding grooves (24) are also of T-shaped structures, and limiting strip grooves (23) matched with the limiting platforms (22) are formed in the bottom surfaces of the sliding grooves (24).
5. A method of opening and closing a valve according to claim 1, wherein: sealing rings are arranged on the outer annular surfaces of the movable sealing ring (4) and the central sealing disc (5) and on the inner annular surfaces of the movable sealing ring (4) and the fixed sealing ring (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011102407.7A CN112240422B (en) | 2020-10-15 | 2020-10-15 | Opening and closing method of valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011102407.7A CN112240422B (en) | 2020-10-15 | 2020-10-15 | Opening and closing method of valve |
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| Publication Number | Publication Date |
|---|---|
| CN112240422A CN112240422A (en) | 2021-01-19 |
| CN112240422B true CN112240422B (en) | 2022-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011102407.7A Active CN112240422B (en) | 2020-10-15 | 2020-10-15 | Opening and closing method of valve |
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| CN111672170A (en) * | 2020-05-30 | 2020-09-18 | 成都有智星科技有限公司 | Method for removing sludge in sedimentation tank in sewage treatment |
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| US9964223B2 (en) * | 2015-07-13 | 2018-05-08 | Hamilton Sundstrand Corporation | Bleed valves for gas turbine engines |
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| CN209354714U (en) * | 2018-10-10 | 2019-09-06 | 天津华特盛达科技有限公司 | There is one kind percentage to adjust wisdom adjustment valve |
| CN211649204U (en) * | 2019-12-31 | 2020-10-09 | 南通市电站阀门有限公司 | Self-operated regulating valve |
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| CN204437307U (en) * | 2014-12-17 | 2015-07-01 | 上海鸿研物流技术有限公司 | Hinge valve |
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