CN109869500B - Automatic control emergency leakage-proof valve - Google Patents
Automatic control emergency leakage-proof valve Download PDFInfo
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- CN109869500B CN109869500B CN201910200552.XA CN201910200552A CN109869500B CN 109869500 B CN109869500 B CN 109869500B CN 201910200552 A CN201910200552 A CN 201910200552A CN 109869500 B CN109869500 B CN 109869500B
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Abstract
The invention belongs to the technical field of valves, and particularly relates to an automatic control emergency leakage-proof valve which comprises a water pipe, a ball valve, a protective cover, a water guide module and a sealing module, wherein the ball valve is arranged on the water pipe, the protective cover is arranged outside the ball valve and comprises an upper protective cover and a lower protective cover, the upper protective cover and the lower protective cover are both in a semicircular tubular structure, and the upper protective cover and the lower protective cover are fixed through bolts; two water guide modules which are symmetrically arranged left and right are arranged on the inner side wall of the upper protective cover; the water guide module comprises a water guide cavity, a water guide core, a first water inlet, a water guide hole and a water outlet, and two water guide cavities which are arranged in bilateral symmetry are formed in the inner side wall of the upper protective cover; the sealing modules are arranged on the water pipe and positioned on two sides of the ball valve, and are communicated with the water guide module through a guide pipe; the sealing module comprises a sealing cavity, a piston, a connecting rod, a first sealing plug, a second sealing plug and a baffle plate, and the outside of the water pipe is communicated with the sealing cavity; the outside of the protective cover is provided with a controller and an alarm.
Description
Technical Field
The invention belongs to the technical field of valves, and particularly relates to an automatic control emergency leakage-proof valve.
Background
The valve is a control part in a fluid conveying system and has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like, wherein a valve core of the ball valve is a round ball with an opening. The valve rod is driven by the plate to make the opening of the sphere face the axis of the pipeline, the opening is fully opened, and the opening is fully closed when the valve rod rotates 90 degrees. The ball valve has certain regulation performance, closes more tightly, sets up the ball valve in the pipeline that opens for a long time, and in case the condition that the ball valve revealed appears, overhauls very inconveniently, so need prevent leaking the processing to the ball valve.
There is also a leakage-proof valve in the prior art, for example, a chinese invention with application number 2013105479554 discloses a novel emergency leakage-proof valve, which comprises an upper valve sealing box, a lower valve sealing box, an inflation inlet, a drain outlet and a pressure gauge; wherein the upper valve sealing box is provided with an inflation inlet, and the lower valve sealing box is provided with a sewage outlet; the pressure gauge is arranged on the upper valve sealing box; the upper valve sealing box is used for enclosing the original control valve casing and the valve core inside, and sealing materials are added at the contact part of the connecting rod connected with the valve core of the valve casing; the upper valve sealing box and the lower valve sealing box are respectively connected with the inlet and outlet channels, and the contact part is sealed by filling materials; the upper valve sealing box and the lower valve sealing box are fixedly connected through bolts.
This technical scheme has prevented the fluid leakage through adding upper portion valve seal box and lower part valve seal box on original valve basis, has improved chemical production's security and smoothness nature, but among this technical scheme, the valve can not realize the urgent leak protection of self-control after the leakage appears, and the leakproofness of valve itself is relatively poor.
Disclosure of Invention
In order to make up the defects of the prior art, the invention provides an automatic control emergency leakage-proof valve. The invention is mainly used for solving the problem that the valve cannot realize automatic control and emergency leakage prevention after leakage occurs.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to an automatic control emergency leakage-proof valve which comprises a water pipe, a ball valve, a protective cover, a water guide module and a sealing module, wherein the ball valve is arranged on the water pipe; the inner side wall of the upper protective cover is provided with two water guide modules which are arranged symmetrically left and right and are used for guiding out water in the protective cover; the water guide module comprises a water guide cavity, a water guide core, a first water inlet, a water guide hole and a water outlet, wherein the inner side wall of the upper protective cover is provided with two water guide cavities which are arranged in bilateral symmetry, one side of each water guide cavity is provided with the water inlet, the water guide core is arranged in the water guide cavity, the water guide core is of a circular tube-shaped structure with an I-shaped section, the top of the water guide core is connected with the upper protective cover through a first spring, the water guide hole is formed in the top of the water guide core, one end of the water guide hole is located in the upper water guide cavity which is separated by the water guide core, the other end of the water guide hole is located at the sunken position of the water guide core; the sealing modules are arranged on the water pipe and positioned on two sides of the ball valve, the sealing modules are communicated with the water guide modules through guide pipes, and the sealing modules are used for sealing the water pipe; the sealing module comprises a sealing cavity, a piston and a connecting rod, the water pipe comprises a first sealing plug, a second sealing plug and a baffle, wherein the outside of the water pipe is communicated with a sealing cavity, a second water inlet is formed in the top of the sealing cavity, a partition is fixedly connected in the sealing cavity, a piston is arranged in an upper cavity separated by the partition in the sealing cavity, the bottom of the piston is connected with the partition through a second spring, a connecting rod is fixedly connected to the central position of the bottom of the piston, the connecting rod penetrates through the partition and extends to the lower position of the sealing cavity, a first sealing plug and a second sealing plug are sequentially arranged on the connecting rod, the first sealing plug and the second sealing plug are formed by combining a cylinder and an inverted circular truncated cone, the baffle is arranged in the water pipe, the communicating position between the baffle and the inner side wall of the water pipe is sealed through the first sealing plug and the second sealing plug, a third spring is sleeved at the bottom position of the connecting rod; the outside of safety cover is equipped with controller and alarm, and the controller is used for the work of control pressure sensor and alarm.
When the ball valve is in work, when the ball valve leaks, water in the ball valve flows into the protective cover and flows into the water guide cavity through the first water inlet, the water enters the upper cavity separated by the water guide core in the water guide cavity through the water guide holes in the water guide core, the top of the water guide core is under the action of water pressure, the water pressure pushes the water guide core to move downwards, the first spring is pulled by a rope, the water guide core moves downwards to enable the first water inlet to be communicated with the water outlet, the water in the water guide cavity flows into the guide pipe through the water outlet, meanwhile, the water guide core is contacted with the pressure sensor along with the downward movement of the water guide core, the pressure sensor senses the pressure and transmits a signal to the controller, the controller controls the alarm to work to remind people that water leakage occurs in the ball valve, then the water enters the guide pipe and enters the sealed cavity through the second water inlet, and the water exerts downward, make the piston remove downwards, in-process, piston compression second spring, and drive connecting rod downstream, thereby drive first sealing plug and second sealing plug downstream, make first sealing plug and second sealing plug sealed with the intercommunication department between the inside wall of baffle and water pipe, block the circulation of water in the water pipe, thereby prevent that the ball valve from continuing to leak, in case the condition that leaks appears in the optional position of ball valve, all can realize the urgent sealed water pipe of automatic control and prevent to continue the function of leaking, and because the both ends of ball valve all are equipped with water guide module and sealing module, can block the ball valve completely, thereby avoid the condition that a large amount of water sprays to appear in the water pipe when the maintenance, during the maintenance, the water pipe is cut off the water, dismantle safety cover and lower safety cover, emit the inside water of safety cover, can maintain the ball valve.
The cross-section of baffle is established to semiellipse circular structure, and the top and the bottom of baffle are all established to the inclined plane type structure of keeping away from connecting rod direction and tilt up, and first recess has been seted up to the upper end inside wall of baffle, and the second recess has been seted up to the lower extreme lateral wall of baffle, and the cross-section of first recess and second recess is all established to the triangle-shaped structure. When the first sealing plug and the second sealing plug move downwards and seal the space between the baffle and the water pipe, the first sealing plug and the second sealing plug press the baffle, because the top end and the bottom end of the baffle are both designed into inclined plane structures which incline upwards and are far away from the direction of the connecting rod, the inner side wall of the upper end of the baffle is provided with a first groove, the outer side wall of the lower end of the baffle is provided with a second groove, the sections of the first groove and the second groove are both designed into triangular structures, the baffle bends and deforms towards the direction of the inward approach of the first sealing plug and the second sealing plug and extrudes the first sealing plug and the second sealing plug, thereby enhancing the sealing performance between the baffle plate and the first sealing plug and the second sealing plug, simultaneously generating water pressure under the impact of water flow, and acting force is applied to the second groove, so that the baffle is further extruded towards the direction close to the second sealing plug, and the sealing property between the baffle and the second sealing plug is further enhanced.
The cross-section of baffle is established to semiellipse circular structure, and the top and the bottom of baffle are all established to the inclined plane type structure of keeping away from connecting rod direction and tilt up, and first recess has been seted up to the upper end inside wall of baffle, and the second recess has been seted up to the lower extreme lateral wall of baffle, and the cross-section of first recess and second recess is all established to the triangle-shaped structure. When the downstream of first sealing plug and second sealing plug and to sealing up between baffle and the water pipe, first sealing plug and second sealing plug extrusion baffle, because the top of baffle all establishes to the inclined plane type structure of keeping away from the connecting rod direction and tilt up with the bottom, first recess has been seted up to the upper end inside wall of baffle, the second recess has been seted up to the lower extreme lateral wall of baffle, the cross-section of first recess and second recess is all established to the triangle-shaped structure, the baffle is inside to be close to the direction bending deformation of first sealing plug and second sealing plug and to extrude the two, thereby the leakproofness between baffle and first sealing plug and the second sealing plug has been strengthened, simultaneously under the impact of rivers, further the baffle extrudees to the direction that is close to first sealing plug and second sealing plug, further strengthen the leakproofness between baffle and first sealing plug and the second sealing plug.
A leakage-proof module is arranged at the joint of the protective cover and the ball valve and is used for preventing the water leakage at the joint of the protective cover and the ball valve; prevent leaking the module and including seal cover, basin and seal groove, the seal cover cup joints in the outside of valve rod, and the basin has been seted up to the inside of seal cover, and the seal groove has been seted up to the outside of valve rod, and the seal cover is established to the round tube tubular structure that the top is closed angle type structure, and the closed angle type structure and the seal groove of seal cover cooperate the use, and the outside thickness of seal cover is less than inboard thickness, and the upside inner wall of seal cover is established to cock. When the leakage appears in the junction of the protective cover and the ball valve, water enters the inside of the sealing sleeve, the inside of the water channel is arranged, under the action of water pressure, the outer side wall of the sealing sleeve is outwards extruded, because the inner wall of the upper side of the sealing sleeve is arranged into a zigzag structure, the outer side of the sealing sleeve is deformed, the sharp-angled structure of the sealing sleeve inwards extends, the inside of the sealing groove can be better injected by the sharp-angled structure of the sealing sleeve, the more water is leaked, the larger the water pressure is, the better the sealing effect of the sealing sleeve is, the better the sealing performance between the protective cover and the ball valve is ensured, the leakage between the protective cover and the ball valve is prevented.
The top end of the closed angle structure of the sealing sleeve is designed to be a structure which is bent towards the outside of the valve rod. After the inside of seal cover intake, because the outside of seal cover warp crooked, make the closed angle department of seal cover receive decurrent power, again because the seal cover is located the inside of seal groove, establish to the structure of being close to the outside crooked of valve rod on the top of the closed angle type structure of seal cover, make the valve rod to the seal cover have an effect ascending power, thereby make the closed angle department of seal cover receive the extrusion, the closed angle department deformation degree of seal cover increases, the laminating degree of seal cover and seal groove has been strengthened, further strengthened the sealed effect of seal cover, simultaneously when the closed angle type structure of seal cover is crooked to the inside of seal groove, the seal cover is difficult to more breaks away from with the connecting rod, further strengthen the leakproofness of seal cover.
The inside of ball valve is equipped with the valve rod, and the valve rod includes outer valve rod and interior valve rod, and the inside of outer valve rod is equipped with interior valve rod, and the bottom of outer valve rod has connected firmly outer case, and the bottom of interior valve rod has connected firmly the inner valve core, and the inner valve core is located the inside of outer case, and the diameter of inner valve core is less than outer case, and the central point of inner valve core and the central point of outer case are located same straight line. When the valve port on outer case and the inner valve core all rotates to unanimous with water pipe circulation direction, the flow of ball valve is big, the valve port of inner valve core rotates to when perpendicular with water pipe circulation direction, the inner valve core is closed, rivers can only be in the intermediate position department circulation of outer ball valve and interior ball valve this moment, thereby the discharge through the ball valve has been reduced, with this flow that controls the water pipe, the interior discharge of ball valve reduces simultaneously, make the fast increase of water through outer ball valve, the water pressure of the interior table wall of multiplicable external ball valve, thereby play the effect of incrustation scale on the interior table wall of clearance outer ball valve, guarantee the unobstructed nature of outer ball valve flowing water.
The invention has the following beneficial effects:
1. according to the invention, by arranging the water guide module and the sealing module, when the ball valve is in a leakage condition, the water guide module emergently guides the leaked water to the sealing module, so that the water pipes on two sides of the ball valve are emergently prevented from leaking, and the water at two ends of the whole ball valve is separated, thereby not only realizing automatic control on emergency leakage prevention, but also avoiding the water in the water pipes from being sprayed out in large quantity during maintenance, and being beneficial to the maintenance of the ball valve.
2. According to the invention, the anti-leakage module is arranged to seal the joint between the protective cover and the ball valve, so that water leaked from the ball valve is prevented from leaking from the joint between the protective cover and the ball valve again, and the normal realization of the anti-leakage function of the ball valve is ensured.
3. According to the invention, the first rotating rod and the second rotating rod which are symmetrically hinged are arranged at the bottom end of the connecting rod, so that the connecting rod drives the first rotating rod and the second rotating rod to move to the same straight line when the sealing module seals the water pipe, thereby fixing the connecting rod, ensuring the sealing property and the sealing stability of the sealing module and being beneficial to later maintenance.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1 in accordance with the present invention;
FIG. 3 is an enlarged view of a portion B of FIG. 1 in accordance with the present invention;
FIG. 4 is a schematic view of the construction of the baffle of the present invention;
FIG. 5 is an enlarged view of a portion C of FIG. 1 in accordance with the present invention;
in the figure: the water pipe 1, the ball valve 2, the valve rod 21, the outer valve rod 211, the outer valve core 22, the inner valve rod 212, the inner valve core 23, the leakage-proof module 3, the sealing sleeve 31, the water tank 32, the sealing groove 33, the protective cover 4, the upper protective cover 41, the lower protective cover 42, the water guide module 5, the water guide cavity 51, the first water inlet 52, the water outlet 53, the water guide core 54, the first spring 55, the water guide hole 56, the pressure sensor 57, the conduit 58, the sealing module 6, the sealing cavity 61, the second water inlet 62, the piston 63, the partition plate 64, the second spring 65, the connecting rod 66, the first sealing plug 67, the second sealing plug 68, the baffle 69, the first groove 691, the second groove 692, the third spring 610, the first rotating rod 7 and the second rotating rod 8.
Detailed Description
An automatically controlled emergency leak prevention valve according to an embodiment of the present invention will be described below with reference to fig. 1 to 5.
As shown in fig. 1-2, the automatic control emergency leak-proof valve according to the present invention comprises a water pipe 1, a ball valve 2, a protective cover 4, a water guide module 5 and a sealing module 6, wherein the ball valve 2 is arranged on the water pipe 1, the protective cover 4 is arranged outside the ball valve 2, the protective cover 4 comprises an upper protective cover 41 and a lower protective cover 42, the upper protective cover 41 and the lower protective cover 42 are both in a semi-circular tubular structure, and the upper protective cover 41 and the lower protective cover 42 are fixed by bolts; two water guide modules 5 which are arranged symmetrically left and right are arranged on the inner side wall of the upper protective cover 41, and the water guide modules 5 are used for guiding out water in the protective cover 4; the water guide module 5 comprises a water guide cavity 51, a water guide core 54, a first water inlet 52, a water guide hole 56 and a water outlet 53, wherein the inner side wall of the upper protective cover 41 is provided with the two water guide cavities 51 which are arranged in bilateral symmetry, one side of the water guide cavity 51 is provided with the water inlet, the water guide core 54 is arranged inside the water guide cavity 51, the water guide core 54 is of a circular tube-shaped structure with an I-shaped section, the top of the water guide core 54 is connected with the upper protective cover 41 through a first spring 55, the top of the water guide core 54 is provided with the water guide hole 56, one end of the water guide hole 56 is positioned in the upper water guide cavity 51 which is separated by the water guide core 54, the other end of the water guide hole 56 is positioned at the concave position of the water guide core 54, the bottom; the sealing modules 6 are arranged on the two sides of the ball valve 2 on the water pipe 1, the sealing modules 6 are communicated with the water guide module 5 through a guide pipe 58, and the sealing modules 6 are used for sealing the water pipe 1; the sealing module 6 comprises a sealing cavity 61, a piston 63, a connecting rod 66, a first sealing plug 67, a second sealing plug 68 and a baffle 69, the sealing cavity 61 is communicated with the outside of the water pipe 1, a second water inlet 62 is formed in the top of the sealing cavity 61, a partition plate 64 is fixedly connected to the inside of the sealing cavity 61, the piston 63 is arranged in an upper cavity separated by the partition plate 64 in the sealing cavity 61, the bottom of the piston 63 is connected with the partition plate 64 through a second spring 65, the connecting rod 66 is fixedly connected to the center of the bottom of the piston 63, the connecting rod 66 penetrates through the partition plate 64 and extends to the lower position of the sealing cavity 61, the connecting rod 66 is sequentially provided with the first sealing plug 67 and the second sealing plug 68, the first sealing plug 67 and the second sealing plug 68 are formed by combining a cylinder and an inverted round table, the baffle 69 is arranged in the water pipe 1, the first sealing plug 67 and the second sealing plug 68 are used for sealing the communication position between the, the bottom end of the connecting rod 66 is sleeved with a third spring 610, and the top end of the third spring 610 is fixedly connected to the connecting rod 66; the outside of safety cover 4 is equipped with controller and alarm, and the controller is used for the work of control pressure sensor 57 and alarm.
When the ball valve 2 leaks during operation, water in the ball valve 2 flows into the protective cover 4 and flows into the water guide cavity 51 through the first water inlet 52, the water enters the upper cavity of the water guide cavity 51 separated by the water guide core 54 through the water guide hole 56 on the water guide core 54, the top of the water guide core 54 is under the action of water pressure, the water pressure pushes the water guide core 54 to move downwards, the first spring 55 is pulled by the pull rope, the water guide core 54 moves downwards, so that the first water inlet 52 is communicated with the water outlet 53, the water in the water guide cavity 51 flows into the conduit 58 through the water outlet 53, meanwhile, along with the downward movement of the water guide core 54, the water guide core 54 is in contact with the pressure sensor 57, the pressure sensor 57 senses pressure and transmits a signal to the controller, the controller controls the alarm to operate to remind people that water leakage occurs in the ball valve 2, then the water enters the conduit 58 and then enters the sealing cavity 61 through the second water inlet 62, water exerts downward water pressure on the piston 63, so that the piston 63 moves downwards, in the process, the piston 63 compresses the second spring 65 and drives the connecting rod 66 to move downwards, thereby driving the first sealing plug 67 and the second sealing plug 68 to move downwards, so that the first sealing plug 67 and the second sealing plug 68 seal the communication part between the baffle 69 and the inner side wall of the water pipe 1, the circulation of water in the water pipe 1 is blocked, and the ball valve 2 is prevented from continuously leaking water, once the water leakage occurs at any position of the ball valve 2, the emergency water pipe 1 can be automatically controlled and the water leakage is prevented from continuously leaking, and as the water guide module 5 and the sealing module 6 are arranged at the two ends of the ball valve 2, the ball valve 2 can be completely blocked, so that the condition that a large amount of water is sprayed in the water pipe 1 during maintenance is avoided, the water pipe 1 is cut off, the upper protective cover 41 and the lower protective cover 42 are detached, the ball valve 2 can be maintained by discharging the water in the protective cover 4.
As shown in fig. 1 and 3, one end of the connecting rod 66 extends to the outside of the sealed cavity 61, the bottom end of the connecting rod 66 is rotatably connected with two first rotating rods 7 arranged in bilateral symmetry, the other end of each first rotating rod 7 is rotatably connected with a second rotating rod 8, and the other end of each second rotating rod 8 is hinged to the sealed cavity 61 through a hinge seat. When the connecting rod 66 moves downwards, bringing the first sealing plug 67 into sealing contact with the second sealing plug 68, the connecting rod 66 drives one end of the first rotating rod 7 to swing downwards, the other end of the first rotating rod 7 to swing upwards, because the first rotating rod 7 is rotatably connected with the second rotating rod 8, the first rotating rod 7 drives one end of the second rotating rod 8 to swing upwards, when the first rotating rod 7 and the second rotating rod 8 swing to be positioned on the same straight line, the bottom end of the connecting rod 66 is automatically locked at the moment and does not move any more, so that the sealing performance of the first sealing plug 67 and the second sealing plug 68 is ensured, the first sealing plug 67 and the second sealing plug 68 are prevented from moving due to the change of water pressure during maintenance, the sealing effect is ensured, therefore, the maintenance is convenient, the stability of the first sealing plug 67 and the second sealing plug 68 in the sealing process is ensured, and the sealing effect is prevented from being influenced by the movement of the first sealing plug 67 and the second sealing plug 68 caused by water flow.
As shown in fig. 1 and 4, the cross section of the baffle 69 is a semi-elliptical ring structure, the top end and the bottom end of the baffle 69 are both designed to be inclined plane structures which are far away from the connecting rod 66 and inclined upwards, a first groove 691 is formed on the inner side wall of the upper end of the baffle 69, a second groove 692 is formed on the outer side wall of the lower end of the baffle 69, and the cross sections of the first groove 691 and the second groove 692 are both designed to be triangular structures. When the first sealing plug 67 and the second sealing plug 68 move downwards and seal between the baffle 69 and the water pipe 1, the baffle 69 is pressed by the first sealing plug 67 and the second sealing plug 68, because the top end and the bottom end of the baffle 69 are both arranged into an inclined plane type structure which inclines upwards and is far away from the connecting rod 66, the inner side wall of the upper end of the baffle 69 is provided with a first groove 691, the outer side wall of the lower end of the baffle 69 is provided with a second groove 692, the cross sections of the first groove 691 and the second groove 692 are both arranged into a triangular structure, the baffle 69 bends and deforms towards the direction close to the first sealing plug 67 and the second sealing plug 68 and presses the first sealing plug 67 and the second sealing plug 68, so that the sealing performance between the baffle 69 and the first sealing plug 67 and the second sealing plug 68 is enhanced, meanwhile, water pressure is generated under the impact of water flow, an acting force is applied to the second groove 692, and the baffle, further enhancing the seal between the flap 69 and the second sealing plug 68.
As shown in fig. 1 and 5, a leak-proof module 3 is arranged at the joint of the protective cover 4 and the ball valve 2, and the leak-proof module 3 is used for preventing water leakage at the joint of the protective cover 4 and the ball valve 2; prevent leaking module 3 and including seal cover 31, recess 32 and seal groove 33, seal cover 31 cup joints in the outside of valve rod 21, and recess 32 has been seted up to the inside of seal cover 31, and seal groove 33 has been seted up to the outside of valve rod 21, and seal cover 31 establishes to be the round tube shape structure that the top is closed angle type structure, and seal cover 31's closed angle type structure and seal groove 33 cooperate the use, and seal cover 31's outside thickness is less than inboard thickness, and seal cover 31's upside inner wall establishes to the serration structure. When the leakage appears in the junction of the protective cover 4 and the ball valve 2, water enters the inside of the sealing sleeve 31, the inside of the groove 32 is arranged, under the action of water pressure, the outer side wall of the sealing sleeve 31 is extruded outwards, because the inner wall of the upper side of the sealing sleeve 31 is set to be a saw-toothed structure, the outer side of the sealing sleeve 31 is deformed, the sharp-angled structure of the sealing sleeve 31 extends inwards, the inside of the sealing groove 33 which is better inserted into the sharp-angled structure of the sealing sleeve 31 can be enabled to be formed, the more water leakage occurs, the larger the water pressure is, the better the sealing effect of the sealing sleeve 31 is, the tightness between the protective cover 4 and the ball valve 2 is ensured, the leakage between the two is prevented.
As shown in fig. 5, the tip of the seal cover 31 has a pointed structure that is curved outward toward the valve stem 21. After the inside of seal cover 31 intakes, because the outside of seal cover 31 is crooked by deformation, make the closed angle department of seal cover 31 receive decurrent power, again because seal cover 31 is located the inside of seal groove 33, the top of the closed angle type structure of seal cover 31 is established to the structure of bending to being close to the valve rod 21 outside, make valve rod 21 have to be used for ascending power to seal cover 31, thereby make the closed angle department of seal cover 31 receive the extrusion, the closed angle department deformation degree of seal cover 31 increases, the laminating degree of seal cover 31 with seal groove 33 has been strengthened, further strengthened the sealed effect of seal cover 31, simultaneously when the closed angle type structure of seal cover 31 is crooked to the inside of seal groove 33, seal cover 31 is difficult more to break away from with connecting rod 66, further strengthen seal cover 31's leakproofness.
As shown in fig. 1, a valve rod 21 is arranged inside the ball valve 2, the valve rod 21 includes an outer valve rod 211 and an inner valve rod 212, the inner valve rod 212 is arranged inside the outer valve rod 211, an outer valve core 22 is fixedly connected to the bottom of the outer valve rod 211, an inner valve core 23 is fixedly connected to the bottom of the inner valve rod 212, the inner valve core 23 is located inside the outer valve core 22, the diameter of the inner valve core 23 is smaller than that of the outer valve core 22, and the central point of the inner valve core 23 and the central point of the outer valve core 22 are located on the same straight line. When the valve ports on outer valve core 22 and inner valve core 23 all rotate to unanimous with water pipe 1 direction of circulation, ball valve 2's flow is big, inner valve core 23's valve port rotates to when perpendicular with water pipe 1 direction of circulation, inner valve core 23 closes, rivers can only circulate in the intermediate position department of outer ball valve 2 and inner ball valve 2 this moment, thereby reduced the discharge through ball valve 2, with this flow that controls water pipe 1, the interior water flow of ball valve 2 reduces simultaneously, make the water velocity through outer ball valve 2 increase, the water pressure of the interior table wall of multiplicable outer ball valve 2, thereby play the effect of the incrustation scale on the interior table wall of clearance outer ball valve 2, guarantee the unobstructed nature of outer ball valve 2 flowing water.
The specific working process is as follows:
when the ball valve 2 leaks during operation, water in the ball valve 2 flows into the protective cover 4 and flows into the water guide cavity 51 through the first water inlet 52, the water enters the upper cavity of the water guide cavity 51 separated by the water guide core 54 through the water guide hole 56 on the water guide core 54, the top of the water guide core 54 is under the action of water pressure, the water pressure pushes the water guide core 54 to move downwards, the first spring 55 is pulled by the pull rope, the water guide core 54 moves downwards, so that the first water inlet 52 is communicated with the water outlet 53, the water in the water guide cavity 51 flows into the conduit 58 through the water outlet 53, meanwhile, along with the downward movement of the water guide core 54, the water guide core 54 is in contact with the pressure sensor 57, the pressure sensor 57 senses pressure and transmits a signal to the controller, the controller controls the alarm to operate to remind people that water leakage occurs in the ball valve 2, then the water enters the conduit 58 and then enters the sealing cavity 61 through the second water inlet 62, water exerts downward water pressure on the piston 63, so that the piston 63 moves downwards, in the process, the piston 63 compresses the second spring 65 and drives the connecting rod 66 to move downwards, thereby driving the first sealing plug 67 and the second sealing plug 68 to move downwards, so that the first sealing plug 67 and the second sealing plug 68 seal the communication part between the baffle 69 and the inner side wall of the water pipe 1, the circulation of water in the water pipe 1 is blocked, and the ball valve 2 is prevented from continuously leaking water, once the water leakage occurs at any position of the ball valve 2, the emergency water pipe 1 can be automatically controlled and the water leakage is prevented from continuously leaking, and as the water guide module 5 and the sealing module 6 are arranged at the two ends of the ball valve 2, the ball valve 2 can be completely blocked, so that the condition that a large amount of water is sprayed in the water pipe 1 during maintenance is avoided, the water pipe 1 is cut off, the upper protective cover 41 and the lower protective cover 42 are detached, the ball valve 2 can be maintained by discharging the water in the protective cover 4.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (6)
1. An automatic control emergency anti-leakage valve is characterized in that: the water pipe type water distributor comprises a water pipe (1), a ball valve (2), a protective cover (4), a water guide module (5) and a sealing module (6), wherein the ball valve (2) is arranged on the water pipe (1), the protective cover (4) is arranged outside the ball valve (2), the protective cover (4) comprises an upper protective cover (41) and a lower protective cover (42), the upper protective cover (41) and the lower protective cover (42) are both in a semicircular tubular structure, and the upper protective cover (41) and the lower protective cover (42) are fixed through bolts; two water guide modules (5) which are arranged in bilateral symmetry are arranged on the inner side wall of the upper protective cover (41), and the water guide modules (5) are used for guiding out water in the protective cover (4); the water guide module (5) comprises a water guide cavity (51), a water guide core (54), a first water inlet (52), a water guide hole (56) and a water outlet (53), two water guide cavities (51) which are arranged in bilateral symmetry are formed in the inner side wall of the upper protective cover (41), a water inlet is formed in one side of each water guide cavity (51), the water guide core (54) is arranged in each water guide cavity (51), the water guide core (54) is of a circular tube-shaped structure with an I-shaped section, the top of each water guide core (54) is connected with the upper protective cover (41) through a first spring (55), the top of each water guide core (54) is provided with a water guide hole (56), one end of each water guide hole (56) is located in the upper water guide cavity (51) separated by the water guide core (54), the other end of each water guide hole (56) is located at the concave position of the water guide core (54), and the bottom of, a water outlet (53) is formed in the other side of the water guide cavity (51); sealing modules (6) are arranged on the water pipe (1) and positioned on two sides of the ball valve (2), the sealing modules (6) are communicated with the water guide module (5) through a guide pipe (58), and the sealing modules (6) are used for sealing the water pipe (1); the sealing module (6) comprises a sealing cavity (61), a piston (63), a connecting rod (66), a first sealing plug (67), a second sealing plug (68) and a baffle (69), the outside of the water pipe (1) is communicated with the sealing cavity (61), a second water inlet (62) is formed in the top of the sealing cavity (61), a partition plate (64) is fixedly connected in the sealing cavity (61), the piston (63) is arranged in an upper cavity separated by the partition plate (64) in the sealing cavity (61), the bottom of the piston (63) is connected with the partition plate (64) through a second spring (65), the connecting rod (66) is fixedly connected in the center of the bottom of the piston (63), the connecting rod (66) penetrates through the partition plate (64) and extends to the position below the sealing cavity (61), the first sealing plug (67) and the second sealing plug (68) are sequentially arranged on the connecting rod (66), and the first sealing plug (67) and the second sealing plug (68) are formed by combining a cylinder and a rounding table, a baffle (69) is arranged in the water pipe (1), the first sealing plug (67) and the second sealing plug (68) are used for sealing the communication position between the baffle (69) and the inner side wall of the water pipe (1), a third spring (610) is sleeved at the bottom end position of the connecting rod (66), and the top end of the third spring (610) is fixedly connected to the connecting rod (66); the outside of safety cover (4) is equipped with controller and alarm, and the controller is used for controlling pressure sensor (57) and the work of alarm.
2. An automatically controlled emergency leak prevention valve, as defined in claim 1, wherein: the one end of connecting rod (66) extends to the outside of sealed chamber (61), and the bottom of connecting rod (66) is rotated and is connected with first dwang (7) that two bilateral symmetry set up, and the other end of first dwang (7) is rotated and is connected with second dwang (8), and the other end of second dwang (8) is articulated with sealed chamber (61) through articulated seat.
3. An automatically controlled emergency leak prevention valve, as defined in claim 1, wherein: the cross-section of baffle (69) is established to semiellipse circular structure, and the top and the bottom of baffle (69) are all established to keeping away from connecting rod (66) direction and tilt up's inclined plane type structure, and first recess (691) have been seted up to the upper end inside wall of baffle (69), and second recess (692) have been seted up to the lower extreme lateral wall of baffle (69), and the cross-section of first recess (691) and second recess (692) all is established to the triangle-shaped structure.
4. An automatically controlled emergency leak prevention valve, as defined in claim 1, wherein: a leakage-proof module (3) is arranged at the joint of the protective cover (4) and the ball valve (2), and the leakage-proof module (3) is used for preventing water leakage at the joint of the protective cover (4) and the ball valve (2); prevent leaking module (3) including seal cover (31), basin (32) and seal groove (33), seal cover (31) are cup jointed in the outside of valve rod (21), basin (32) have been seted up to the inside of seal cover (31), seal groove (33) have been seted up to the outside of valve rod (21), seal cover (31) are established to the round tube shape structure that the top is closed angle type structure, the closed angle type structure and the use of sealing groove (33) cooperation of seal cover (31), the outside thickness of seal cover (31) is less than inboard thickness, the upside inner wall of seal cover (31) is established to jagged structure.
5. An automatically controlled emergency leak prevention valve according to claim 4, wherein: the top end of the sharp-angled structure of the sealing sleeve (31) is a structure which is bent towards the outside of the valve rod (21).
6. An automatically controlled emergency leak prevention valve according to claim 4, wherein: the inside of ball valve (2) is equipped with valve rod (21), and valve rod (21) are including outer valve rod (211) and interior valve rod (212), and the inside of outer valve rod (211) is equipped with interior valve rod (212), and the bottom of outer valve rod (211) has connected outer case (22) admittedly, and the bottom of interior valve rod (212) has connected inner valve core (23) admittedly, and inner valve core (23) are located the inside of outer case (22), and the diameter of inner valve core (23) is less than outer case (22), and the central point of inner valve core (23) and the central point of outer case (22) are located same straight line.
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| CN201910200552.XA CN109869500B (en) | 2019-03-16 | 2019-03-16 | Automatic control emergency leakage-proof valve |
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| CN201910200552.XA CN109869500B (en) | 2019-03-16 | 2019-03-16 | Automatic control emergency leakage-proof valve |
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| CN109869500B true CN109869500B (en) | 2020-01-14 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110274077B (en) * | 2019-07-04 | 2020-12-15 | 温岭绿能新能源有限公司 | Coaxial double-core safety valve for steam delivery control of power station |
| CN110878844B (en) * | 2019-11-06 | 2020-10-30 | 远大阀门集团有限公司 | Ball valve |
| CN110925452B (en) * | 2019-12-03 | 2021-06-04 | 中铁五局集团第一工程有限责任公司 | Engineering water supply system based on BIM |
| CN112178234B (en) * | 2020-11-04 | 2021-08-17 | 君品集团有限公司 | Flow-adjustable ball valve |
| CN113217678B (en) * | 2021-05-21 | 2023-08-25 | 浙江奥德华科技股份有限公司 | High-stability valve for municipal water outlet and use method |
| CN114215929A (en) * | 2021-12-17 | 2022-03-22 | 江苏瑞润隆机械有限公司 | Ball valve with good tightness and using method thereof |
| CN116989160B (en) * | 2023-09-26 | 2023-12-12 | 山东益凯德液压股份有限公司 | High-balance eccentric rotary valve |
| CN117662845B (en) * | 2024-01-29 | 2024-04-16 | 安利达(山东)智控科技集团股份有限公司 | Emergency leakage-proof valve |
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Effective date of registration: 20191223 Address after: 226600 No. 288 the Yellow Sea Avenue (West), Haian Town, Haian County, Nantong, Jiangsu Applicant after: Jiangsu Ming Jiang Valve Co., Ltd. Address before: 310014, Zhejiang City, No. 18 Chao Wang Road, Zhejiang University of Technology Applicant before: Liu Xu |
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