CN111006028B - Butterfly valve for water cooling system of large power station unit - Google Patents
Butterfly valve for water cooling system of large power station unit Download PDFInfo
- Publication number
- CN111006028B CN111006028B CN201911380204.1A CN201911380204A CN111006028B CN 111006028 B CN111006028 B CN 111006028B CN 201911380204 A CN201911380204 A CN 201911380204A CN 111006028 B CN111006028 B CN 111006028B
- Authority
- CN
- China
- Prior art keywords
- valve
- rod
- rubber gasket
- block
- sliding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/222—Shaping of the valve member
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/226—Shaping or arrangements of the sealing
-
- 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
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
- F16K47/023—Means in valves for absorbing fluid energy for preventing water-hammer or noise for preventing water-hammer, e.g. damping of the valve movement
Abstract
The invention discloses a butterfly valve for a water cooling system of a large-scale power station unit, which comprises a valve body, wherein a valve rod movable sleeve is fixedly arranged on the upper surface of the valve body, a valve rod which is rotatably connected with the valve rod movable sleeve and used for rotating a valve clack is sleeved in the valve rod movable sleeve, a seal sleeve is connected above the valve rod movable sleeve through a screw, the butterfly valve is provided with a rubber gasket pushing plate and a rubber gasket, when a user finds that the rubber gasket at the position of the valve clack is corroded, the butterfly valve can directly rotate a screw rod, so that a pushing rod pushes an inclined pushing block to move, then the inclined pushing block can push the gasket pushing block to move, the rubber gasket pushing plate pushes the rubber gasket to be tightly attached to the inner wall of the valve body, thereby a gap generated by corrosion is blocked, the user does not need to frequently replace parts of the butterfly valve, and meanwhile, a flow limiting device is arranged to ensure that water flow does not directly impact the valve rod when passing through the valve clack core, so that the erosion rate of the valve rod is reduced, the service life of the device is indirectly prolonged, and the practicability is strong.
Description
Technical Field
The invention relates to the field of mechanical valves, in particular to a butterfly valve for a water cooling system of a large power station unit.
Background
For any machine, the cooling system can be operated stably for a long time, and the reliability of the cooling system can affect the basic performance of the system. At present, the conventional cooling system mainly includes an air cooling system, a water cooling system and a semiconductor cooling system, and the water cooling system is the most mature cooling system and the most economical cooling system with the best cooling effect from the technical degree, the cooling effect and the economical point of view.
For the unit of large-scale power station, its cooling system is also a bulky system, and for this kind of cooling system, the stability of stabilizing the rivers in the cooling system is crucial, includes the butterfly valve in the governing valve in the water cooling system. The butterfly valve is a regulating valve with simple structure, and can be used for the on-off control of low-pressure pipeline medium, i.e. a valve whose closing member (valve clack or butterfly plate) is a disk and can be rotated around the valve shaft to open and close, and it is simple in structure, and is commonly used for large-flow low-pressure fluid.
The common butterfly valves in the current market generally face the phenomena that when the butterfly valves are used for a long time, rubber gaskets at the valve clack positions are easily corroded by water which circulates for a long time, and water leakage and water seepage begin to occur. When the valve clack is corroded, the valve clack can only be replaced by a user after being used normally, but due to the fact that the flow rate of water in the pipeline at the position of the valve clack is large, the service life of the valve clack is further influenced by long-time high-flow-rate erosion. Therefore, for a high-power cooling system, the corrosion speed of the valve clack sealing assembly is high, and the rubber gasket is frequently replaced for guaranteeing normal practical use, so that the requirement of equipment on sealing performance is met.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the butterfly valve for the water cooling system of the large-scale power station unit, which can prolong the service life of equipment by reducing the flow rate of the valve clack and shielding a gap generated by corrosion through the blocking effect, and can effectively solve the problem that the valve clack sealing component is frequently corroded and needs to be replaced due to overlarge flow rate in the background technology.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a butterfly valve for a water cooling system of a large-scale power station unit comprises a valve body, wherein a valve rod movable sleeve is fixedly installed on the upper surface of the valve body, a valve rod which is rotatably connected with the valve rod movable sleeve and is used for rotating a valve clack is sleeved in the valve rod movable sleeve, a seal sleeve is connected above the valve rod movable sleeve through a screw, a valve clack core used for blocking water flow is fixed on the position, corresponding to the valve body, of the lower side wall of the valve rod through a pin, and flow limiting devices capable of reducing flow speed are symmetrically arranged on two sides of the valve clack core respectively;
the valve clack core includes two main fixed plates that pass through the fix with screw with the valve rod, there is the fixed cover of rubber gasket the lateral wall of main fixed plate through the screw connection, the inboard of the fixed cover of rubber gasket is provided with the oblique ejector pad that passes through the screw connection with the push rod, and has seted up a plurality of slip through-hole on the fixed cover of rubber gasket be provided with the gasket ejector pad with rubber gasket fixed cover sliding connection in the slip through-hole, the outer wall of the fixed cover of rubber gasket is provided with the rubber gasket who just is used for blockking rivers through the screw connection with the gasket ejector pad, the left and right sides of oblique ejector pad sliding connection has the rubber gasket slurcam that promotes the rubber gasket respectively.
As a preferable technical scheme, a rotating disc is connected above the valve rod through a screw, a rotating through groove is formed in the valve rod, a screw rod which is in threaded connection with the valve rod and can adjust the position of the rubber gasket is arranged in the rotating through groove, and a push rod is rotatably connected to the bottom of the screw rod.
As a preferable technical scheme, a spring is fixedly arranged between the rubber gasket pushing plate and the gasket pushing block, and the bottom of the inclined pushing block is connected with a lower gasket pushing plate through a screw.
As a preferable technical scheme, a spring is also fixedly arranged between the lower gasket pushing plate and the gasket pushing block, and a water baffle which is connected with the rubber gasket fixing cover through a screw and used for cutting off water flow is arranged on one side of the rubber gasket fixing cover far away from the valve rod.
According to a preferable technical scheme of the invention, a sliding groove is formed in the water baffle, a sliding block in sliding connection with the water baffle is arranged in the sliding groove, two connecting rod fixing blocks are rotatably connected to the sliding block, and a connecting rod which is rotatably connected with the connecting rod fixing blocks and used for pulling the flow limiting device is arranged on each connecting rod fixing block.
As a preferable technical scheme of the invention, the flow limiting device comprises a flow limiting block which is rotationally connected with the valve body through a rotating shaft, and a connecting rod sliding frame which is connected with the water baffle through a screw is arranged on one side of the flow limiting block close to the water baffle.
As a preferred technical scheme of the present invention, a connecting rod fixing slider capable of pulling the flow limiting stopper is slidably connected to the connecting rod sliding frame, the connecting rod fixing slider is rotatably connected to the connecting rod, an auxiliary flow limiting stopper rotatably connected to the flow limiting stopper and capable of secondarily limiting a flow rate of water is disposed on the other side of the flow limiting stopper, and a spring is fixedly installed between the auxiliary flow limiting stopper and the flow limiting stopper.
As a preferable technical scheme, sliding grooves are formed in the positions of outlets at two ends of the valve body, rubber backing rings connected with the valve body in a sliding mode are arranged in the sliding grooves, and springs are fixedly arranged between the rubber backing rings and the valve body.
As a preferable technical scheme, the push rod comprises a rotating table which is rotatably connected with the screw rod, the side wall of the rotating table is connected with a push block push rod with an L-shaped structure through a screw, and the push rod is in sliding connection with the main fixing plate.
As a preferable technical scheme, the rubber gasket pushing plate is of a triangular structure, the number of the flow-limiting stop blocks is four, and the four flow-limiting stop blocks are respectively installed in a pairwise symmetrical mode relative to the central axis of the valve clack core.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the flow limiting device is arranged, so that the flow speed is limited when water flows through the valve clack to reduce the direct impact force of the water flow and reduce the erosion speed, and a gap generated by corrosion is blocked by the push rod when the valve clack is corroded and cannot meet the sealing requirement, so that frequent replacement of accessories is not required, the sealing property of the device is improved, and the effective service life of the device is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
The structure, proportion, size and the like shown in the drawings are only used for matching with the content disclosed in the specification, so that the person skilled in the art can understand and read the description, and the description is not used for limiting the limit condition of the implementation of the invention, so the method has no technical essence, and any structural modification, proportion relation change or size adjustment still falls within the scope of the technical content disclosed by the invention without affecting the effect and the achievable purpose of the invention.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front partial cross-sectional view of the present invention;
FIG. 3 is a side partial cross-sectional view of a valve flap core of the present invention;
FIG. 4 is a side view of the valve body of the present invention;
fig. 5 is a top partial cross-sectional view of the valve body of the present invention.
In the figure: 1-valve body, 2-sliding groove, 3-valve rod movable sleeve, 4-sealing sleeve, 5-valve rod, 6-valve core and 7-flow limiting device;
201-spring, 202-rubber backing ring;
501-rotating disc, 502-rotating through groove, 503-screw rod and 504-push rod;
601-a main fixing plate, 602-a water baffle, 603-a rubber gasket fixing cover, 604-a rubber gasket, 605-a sliding through hole, 606-a gasket push block, 607-a rubber gasket push plate, 608-a lower gasket push plate and 609-an inclined push block;
6021-sliding groove, 6022-connecting rod fixing block, 6023-connecting rod and 6024-sliding block;
701-a current-limiting stop block, 702-a connecting rod sliding frame, 703-a connecting rod fixed sliding block and 704-an auxiliary current-limiting block.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. It should be noted that when one component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
As shown in fig. 1, the invention provides a butterfly valve for a water cooling system of a large-scale power station unit, which comprises a valve body 1, wherein a valve rod movable sleeve 3 is fixedly installed on the upper surface of the valve body 1, a valve rod 5 which is rotatably connected with the valve rod movable sleeve 3 and is used for rotating a valve clack is sleeved in the valve rod movable sleeve 3, a seal sleeve 4 is connected above the valve rod movable sleeve 3 through a screw, a rotating disc 501 is connected above the valve rod 5 through a screw, a valve clack core 6 which is used for blocking water flow is fixed at a position, corresponding to the valve body 1, of the lower side wall of the valve rod 5 through a pin, and flow limiting devices 7 which can slow down the flow rate are symmetrically arranged on two sides of the valve clack core 6 respectively.
This butterfly valve direct rotation valve rod 5 alright open valve lamella core 6 when using for rivers normally circulate, and this device can come to carry out the speed limit to rivers through current-limiting device 7 when using than other equipment, makes valve rod 5 and valve lamella core 6 can not receive too big impact, makes the life of equipment longer.
The valve comprises a valve rod 5, a rotating through groove 502 is formed in the valve rod 5, a screw 503 which is in threaded connection with the valve rod 5 and can adjust the position of a rubber gasket is arranged in the rotating through groove 502, the position of the rubber gasket can be adjusted by the screw 503, the height of the screw 503 after installation is larger than that of the valve rod 5, two control components are separated, operation of a user is facilitated, a push rod 504 is rotatably connected to the bottom of the screw 503, a valve core 6 comprises two main fixing plates 601 which are fixed with the valve rod 5 through screws, the valve core 6 comprises three plates, the main fixing plates 601 are directly fixed with the valve rod 5 through screws, the whole valve core 6 can be directly driven to start operation after the user rotates the valve rod 5, a rubber gasket fixing cover 603 is connected to the side wall of the main fixing plate 601 through screws, and an inclined push block 609 which is connected with the push rod 504 through screws is arranged on the inner side of the rubber gasket fixing cover 603, the control member is operated by the inclined push block 609, and when the inclined push block 609 is pressed down, the three gasket push blocks 606 are simultaneously controlled to slide, so that the rubber gasket 604 is pushed out to be further attached to the inner wall of the valve body 1.
A plurality of sliding through holes 605 are arranged on the rubber gasket fixing cover 603, a gasket pushing block 606 which is connected with the rubber gasket fixing cover 603 in a sliding manner is arranged in the sliding through holes 605, the gasket pushing block 606 slides in the sliding through holes 605, so that the rubber gasket 604 can be pushed out, a rubber gasket 604 which is connected with the gasket pushing block 606 through a screw and used for blocking water flow is arranged on the outer wall of the rubber gasket fixing cover 603, the rubber gasket 604 is used as a component for controlling the size of the gap between the valve body 1 and the valve clack core 6, when the equipment is used for a long time, so that the gap is reduced by the rubber gasket 604, the left side and the right side of the inclined pushing block 609 are respectively connected with a rubber gasket pushing plate 607 for pushing the rubber gasket 604 in a sliding manner, and a spring 201 is fixedly arranged between the rubber gasket pushing plate 607 and the gasket pushing block 606, the bottom of the inclined push block 609 is connected with a lower gasket push plate 608 through a screw, and a spring 201 is also fixedly arranged between the lower gasket push plate 608 and the gasket push block 606.
When a user operates, if a water leakage phenomenon occurs in the valve body 1, the user can directly rotate the screw 503 to make the push rod 504 on the screw 503 move downwards, and then the push rod 504 moving downwards can press the inclined push block 609 to move downwards, so that the inclined push block 609 simultaneously presses the rubber gasket push plates 607 on the left side and the right side and the lower gasket push plate 608 on the bottom of the inclined push block 609, so that the three springs 201 and the three gasket push blocks 606 simultaneously slide towards the direction far away from the inclined push block 609, so that the rubber gaskets 604 further cling to the inner wall of the valve body 1 to block gaps on the valve body 1, a water blocking plate 602 which is connected with the rubber gasket fixing cover 603 through screws and used for blocking water flow is arranged on one side far away from the valve rod 5 of the rubber gasket fixing cover 603, and the water blocking plate 602 is a main water blocking part, so that fluid in the valve body 1 is blocked.
The water baffle 602 is provided with a sliding groove 6021, a sliding block 6024 connected with the water baffle 602 in a sliding way is arranged in the sliding groove 6021, the sliding block 6024 is rotatably connected with two connecting rod fixing blocks 6022, a connecting rod 6023 which is rotatably connected with the connecting rod fixing blocks 6022 and is used for pulling the flow limiting device 7 is arranged on the connecting rod fixing blocks 6022, the water baffle 602 rotates along with the rotation of the valve rod 5, when the water baffle 602 is slowly converted from being vertical to the valve body 1 to be parallel to the valve body 1, at the moment, the sliding block 6024 slides in the sliding groove 6021, and the connecting rod 6022 starts to rotate at a certain angle when the sliding block 6024 rotates, and drives the flow limiting device 7 to rotate through the connecting rod 6023, so that the flow rate of the water flow is limited.
Further, as shown in fig. 1, 2, 5 and 4, the flow restricting device 7 includes a flow restricting block 701 rotatably coupled to the valve body 1 via a rotation shaft, the flow restricting block 701 is rotated only by the movement of the connecting rod 6023, and when the water guard 602 is gradually shifted to be parallel to the valve body 1, the flow restricting block 701 is gradually tilted toward the water guard 602 so that the flow of water is sufficiently restricted.
The side of the current-limiting block 701 close to the water baffle 602 is provided with a connecting rod sliding frame 702 connected with the water baffle 602 through a screw, the connecting rod sliding frame 702 is connected with a connecting rod fixing slide block 703 capable of pulling the current-limiting block 701 in a sliding manner, the connecting rod fixing slide block 703 is connected with a connecting rod 6023 in a rotating manner, so that the connecting rod 6023 can normally drive the connecting rod fixing slide block 703 to slide in the connecting rod sliding frame 702, so that the current-limiting block 701 can normally rotate without being affected, the connecting rod 6023 can drive the connecting rod fixing slide block 703 to slide when moving, then the connecting rod fixing slide block 703 can drive the current-limiting block 701 to rotate, so that the water flow is limited, the connecting rod fixing slide block 703 is connected with the connecting rod 6023 in a rotating manner, the other side of the current-limiting block 701 is provided with a secondary current-limiting block 704 which is rotatably connected with the current-limiting block 701 and can be used for secondarily limiting the flow rate of the water flow, and the secondary current-limiting block is arranged after the current-limiting block 701 rotates to a proper position, the water flow directly impacts the restriction block 701, and at this time, the water flow slides along with the restriction block 701, so that the secondary restriction block 704 is pushed away, and then the water flow is blocked by the secondary restriction block 704, so that the flow rate is reduced again, and the spring 201 is installed between the secondary restriction block 704 and the restriction block 701, in order to prevent the secondary restriction block 704 from being washed away due to the fast flow rate, so that the water deflector 602 is impacted on the water deflector 602, so that the water deflector 602 is damaged, and the spring 201 is fixedly installed between the secondary restriction block 704 and the restriction block 701.
Further, as shown in fig. 1, 2 and 4, the valve body 1 is provided with a sliding groove 2 at the outlet positions of both ends, a rubber grommet 202 slidably connected with the valve body 1 is arranged in the sliding groove 2, a spring 201 is fixedly installed between the rubber grommet 202 and the valve body 1, the rubber grommet 202 is limited by the spring 201, when the valve body 1 is fixed on a pipeline, the spring 201 pushes the rubber grommet 202 to be tightly attached between the valve body 1 and the pipeline, so that the gap between the valve body 1 and the pipeline is smaller, even if the device is used for a long time, water does not leak, and the protection performance is higher.
Further, as shown in fig. 2 and fig. 3, the push rod 504 includes a rotating platform rotatably connected to the screw 503, a side wall of the rotating platform is connected to a push rod of an L-shaped structure through a screw, and the push rod 504 is slidably connected to the main fixing plate 601, when the screw 503 rotates, the rotating platform and the push rod are pushed to move down, so that the rubber gasket push plate 607 and the rubber gasket 604 are pushed to cling to the valve body 1, and the push rod of the L-shaped structure is connected to the rotating platform and the rubber gasket push plate 607 for convenience, and the push rod is not affected when sliding.
Further, as shown in fig. 3 and 3, the rubber gasket pushing plate 607 is of a triangular structure, the number of the flow limiting stoppers 701 is four, the four flow limiting stoppers 701 are respectively installed in pairwise symmetry with respect to the central axis of the valve flap core 6, the rubber gasket pushing plate 607 is of a triangular structure and is used in cooperation with the inclined push block 609, when the inclined push block 609 slides downwards, the rubber gasket pushing plate 607 is pushed to move, so that the rubber gasket 604 is pushed, and the four flow limiting stoppers 701 are provided so that the valve body 1 is not limited during installation, and the practicability is high.
In summary, according to the invention, by arranging the gasket pushing block, the rubber gasket pushing plate and the rubber gasket, when a user finds that the rubber gasket at the valve clack position is corroded, the user can directly rotate the screw rod to enable the pushing rod to push the inclined pushing block to move, then the inclined pushing block can push the gasket pushing block with the triangular structure to move, so that the rubber gasket pushing plate pushes the rubber gasket to be tightly attached to the inner wall of the valve body, and a gap generated by corrosion is blocked, so that the user does not need to frequently replace parts of equipment.
In addition, the invention is also provided with a flow limiting device, when a user opens the valve core, the connecting rod on the valve core can pull the flow limiting block on the flow limiting device to rotate, so that water flow cannot directly impact the valve rod when passing through the valve core, the erosion rate of the valve rod is reduced, the service life of the equipment is indirectly prolonged, and meanwhile, the auxiliary flow limiting block is also arranged on the flow limiting block, so that the water flow can be further limited, and the water flow cannot cause great influence on a valve body part.
The valve body is fixed on the pipeline, the spring pushes the rubber backing ring to be tightly attached between the valve body and the pipeline, so that a gap between the valve body and the pipeline is smaller, water does not leak even if the device is used for a long time, and the protection performance is higher.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (6)
1. The utility model provides a butterfly valve for large-scale power station unit water cooling system which characterized in that: the valve comprises a valve body (1), wherein a valve rod movable sleeve (3) is fixedly installed on the upper surface of the valve body (1), a valve rod (5) which is rotatably connected with the valve rod movable sleeve (3) and used for rotating a valve clack is sleeved in the valve rod movable sleeve (3), a sealing sleeve (4) is connected above the valve rod movable sleeve (3) through a screw, a valve clack core (6) used for blocking water flow is fixed at a position, corresponding to the valve body (1), of the lower side wall of the valve rod (5) through a pin, and flow limiting devices (7) capable of reducing flow speed are symmetrically arranged on two sides of the valve clack core (6) respectively;
the valve flap core (6) comprises two main fixing plates (601) fixed with the valve rod (5) through screws, the side walls of the main fixing plates (601) are connected with rubber gasket fixing covers (603) through screws, inclined push blocks (609) connected with push rods (504) through screws are arranged on the inner sides of the rubber gasket fixing covers (603), a plurality of sliding through holes (605) are formed in the rubber gasket fixing covers (603), gasket push blocks (606) connected with the rubber gasket fixing covers (603) in a sliding mode are arranged in the sliding through holes (605), rubber gaskets (604) connected with the gasket push blocks (606) through screws and used for blocking water flow are arranged on the outer walls of the rubber gasket fixing covers (603), and rubber gasket push plates (607) for pushing the rubber gaskets (604) are connected to the left side and the right side of each inclined push block (609) in a sliding mode; a spring (201) is fixedly arranged between the rubber gasket pushing plate (607) and the gasket pushing block (606), and the bottom of the inclined pushing block (609) is connected with a lower gasket pushing plate (608) through a screw; a spring (201) is also fixedly installed between the lower gasket push plate (608) and the gasket push block (606), and a water baffle (602) which is connected with the rubber gasket fixing cover (603) through a screw and used for cutting off water flow is arranged on one side of the rubber gasket fixing cover (603) far away from the valve rod (5); the flow limiting device (7) comprises a flow limiting block (701) which is rotationally connected with the valve body (1) through a rotating shaft, and a connecting rod sliding frame (702) which is connected with the water baffle (602) through a screw is arranged on one side, close to the water baffle (602), of the flow limiting block (701); the flow limiting device is characterized in that a connecting rod fixing sliding block (703) capable of pulling a flow limiting block (701) is connected in the connecting rod sliding frame (702) in a sliding mode, the connecting rod fixing sliding block (703) is connected with a connecting rod (6023) in a rotating mode, an auxiliary flow limiting block (704) which is connected with the flow limiting block (701) in a rotating mode and can be used for limiting the flow rate of water secondarily is arranged on the other side of the flow limiting block (701), and a spring (201) is fixedly installed between the auxiliary flow limiting block (704) and the flow limiting block (701).
2. The butterfly valve for the water cooling system of large power plant units according to claim 1, characterized in that: the rubber gasket adjusting valve is characterized in that a rotating disc (501) is connected to the upper portion of the valve rod (5) through a screw, a rotating through groove (502) is formed in the valve rod (5), a screw rod (503) which is connected with the valve rod (5) through threads and can adjust the position of a rubber gasket is arranged in the rotating through groove (502), and a push rod (504) is connected to the bottom of the screw rod (503) in a rotating mode.
3. The butterfly valve for the water cooling system of large power plant units according to claim 1, characterized in that: the water baffle plate (602) is provided with a sliding groove (6021), a sliding block (6024) which is in sliding connection with the water baffle plate (602) is arranged in the sliding groove (6021), the sliding block (6024) is rotatably connected with two connecting rod fixing blocks (6022), and a connecting rod (6023) which is rotatably connected with the connecting rod fixing blocks (6022) and is used for pulling the flow limiting device (7) is arranged on each connecting rod fixing block (6022).
4. The butterfly valve for the water cooling system of large power plant units according to claim 1, characterized in that: the valve body (1) is provided with sliding grooves (2) at the outlet positions of the two ends, rubber backing rings (202) which are connected with the valve body (1) in a sliding mode are arranged in the sliding grooves (2), and springs (201) are fixedly mounted between the rubber backing rings (202) and the valve body (1).
5. The butterfly valve for the water cooling system of large power plant units according to claim 2, characterized in that: the push rod (504) comprises a rotating table which is rotatably connected with the screw rod (503), the side wall of the rotating table is connected with a push block push rod with an L-shaped structure through a screw, and the push rod (504) is slidably connected with the main fixing plate (601).
6. The butterfly valve for the water cooling system of large power plant units according to claim 1, characterized in that: the rubber gasket pushing plate (607) is of a triangular structure, the number of the flow limiting stoppers (701) is four, and the four flow limiting stoppers (701) are respectively installed in a pairwise symmetrical mode relative to the central axis of the valve core (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911380204.1A CN111006028B (en) | 2019-12-27 | 2019-12-27 | Butterfly valve for water cooling system of large power station unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911380204.1A CN111006028B (en) | 2019-12-27 | 2019-12-27 | Butterfly valve for water cooling system of large power station unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111006028A CN111006028A (en) | 2020-04-14 |
| CN111006028B true CN111006028B (en) | 2022-05-13 |
Family
ID=70119051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911380204.1A Active CN111006028B (en) | 2019-12-27 | 2019-12-27 | Butterfly valve for water cooling system of large power station unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111006028B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201925492U (en) * | 2011-01-04 | 2011-08-10 | 浙江欧尼特阀门有限公司 | Double-wishbone spreading type butterfly valve |
| CN105299245A (en) * | 2015-11-17 | 2016-02-03 | 天津市卡尔斯阀门有限公司 | Novel butterfly valve |
| CN107131309A (en) * | 2017-05-24 | 2017-09-05 | 刘晓琦 | A kind of forced seal butterfly valve |
| CN107859751A (en) * | 2017-11-16 | 2018-03-30 | 温州职业技术学院 | A kind of machinery valve device of position locking |
| CN208024861U (en) * | 2018-04-10 | 2018-10-30 | 东莞市欧克气动科技有限公司 | A kind of electric butterfly valve |
| CN209800738U (en) * | 2019-03-19 | 2019-12-17 | 山东阳信县金缘生物热电有限公司 | Electric butterfly valve control device for biological thermoelectric technology |
-
2019
- 2019-12-27 CN CN201911380204.1A patent/CN111006028B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201925492U (en) * | 2011-01-04 | 2011-08-10 | 浙江欧尼特阀门有限公司 | Double-wishbone spreading type butterfly valve |
| CN105299245A (en) * | 2015-11-17 | 2016-02-03 | 天津市卡尔斯阀门有限公司 | Novel butterfly valve |
| CN107131309A (en) * | 2017-05-24 | 2017-09-05 | 刘晓琦 | A kind of forced seal butterfly valve |
| CN107859751A (en) * | 2017-11-16 | 2018-03-30 | 温州职业技术学院 | A kind of machinery valve device of position locking |
| CN208024861U (en) * | 2018-04-10 | 2018-10-30 | 东莞市欧克气动科技有限公司 | A kind of electric butterfly valve |
| CN209800738U (en) * | 2019-03-19 | 2019-12-17 | 山东阳信县金缘生物热电有限公司 | Electric butterfly valve control device for biological thermoelectric technology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111006028A (en) | 2020-04-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108757973B (en) | Double-flashboard gate valve | |
| CN111006028B (en) | Butterfly valve for water cooling system of large power station unit | |
| CN112066027A (en) | Heat supply abrasion-resistant ball valve | |
| CN207261704U (en) | A kind of bracing type forced seal ball valve | |
| US3164363A (en) | Valve having seat-carrying flange | |
| CN104896109A (en) | Pressure reducing valve | |
| CN210423744U (en) | Butterfly valve capable of preventing valve rod from rotating | |
| CN210770278U (en) | Double-seat butterfly valve | |
| CN114935014A (en) | Movable head connection type stop valve | |
| CN204437297U (en) | High-pressure self-balance piston type regulates throttling stop valve | |
| CN207500497U (en) | A kind of novel high-performance anti-corrosion and high strength seals butterfly plate | |
| CN202852028U (en) | Non-sliding friction gate valve | |
| CN205745349U (en) | A kind of sealed valve | |
| CN204647344U (en) | A kind of reduction valve | |
| CN219549658U (en) | Multi-seal ball valve | |
| CN115807411B (en) | Energy-saving and environment-friendly hydraulic engineering gate with excellent opening and closing effects | |
| CN214838637U (en) | Line sealing butterfly check valve | |
| CN220870199U (en) | Pneumatic regulating valve | |
| CN110541956A (en) | Water flow pressure reducing device applied to water supply system | |
| CN214197311U (en) | Butterfly valve body convenient to maintain | |
| CN210164898U (en) | Stop valve for high-pressure regulation by using bevel gear | |
| CN216590054U (en) | Combined novel high-pressure sealing ball valve | |
| CN218178063U (en) | Ball valve rod structure | |
| CN219282473U (en) | Gate valve with high sealing performance | |
| CN212926274U (en) | Plugging device of tailing storehouse flood discharge tower |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |