CN219529891U - Semi-spherical valve capable of being maintained on line in upper assembly mode - Google Patents

Abstract

The utility model relates to a top-mounted hemispherical valve capable of being maintained on line, which comprises a valve body, wherein a liquid inlet pipe and a liquid outlet pipe are communicated with the valve body, a blocking plate is arranged in the valve body, arc rods are symmetrically arranged on two sides of the blocking plate, valve rods are respectively arranged at the end parts of the two arc rods, the two valve rods are arranged on the valve body in a penetrating way, a compression groove is arranged at the end part of the blocking plate, a compression plate is arranged in the compression groove, the compression plate is in sealing connection with the compression groove through a flexible ring, a sealing cavity is formed by the compression plate, the flexible ring and the compression groove, an annular groove is further arranged at the end part of the blocking plate far away from the valve rod, a sealing ring is arranged in the annular groove, and the bottom of the annular groove is communicated with the sealing cavity through a vent hole; the valve body is provided with an opening and closing sensor corresponding to the valve rod, and the liquid outlet pipe is provided with a flow sensor; according to the utility model, by arranging the flow sensor, when the hemispherical valve is closed, whether liquid in the pipe flows through or not can still be detected, and the liquid is fed back to the control terminal to judge whether the hemispherical valve is leaked or not, so that the online maintenance of workers in time is facilitated.

Description

Semi-spherical valve capable of being maintained on line in upper assembly mode

Technical Field

The utility model relates to the technical field of valves, in particular to a top-mounted semi-spherical valve capable of being maintained on line.

Background

The eccentric hemispherical valve is widely applied to pipeline systems of urban water supply and drainage, water diversion of water plants, south-to-north water diversion engineering, petroleum, chemical industry, power plants, sewage treatment and the like. The current upper-mounted eccentric half ball valve in the current market is in the hemispherical valve clack closing process, because of the self weight and eccentric action of the hemispherical valve clack, the valve clack can be more closed and tighter in the closing process, and the extremely large abrasion between the hemispherical valve clack and the valve seat is caused, so that the sealing performance of the half ball valve product is greatly influenced, the real-time monitoring can not be carried out on the valve when the valve is used, the problem of leakage of the valve can not be rapidly solved, and potential safety hazards exist.

Disclosure of Invention

The utility model aims to provide a top-mounted on-line maintainable hemispherical valve, which is used for solving the problems that the existing top-mounted hemispherical valve is poor in sealing effect and cannot be monitored in real time and rapidly maintained.

In order to solve the problems, the utility model provides a top-mounted on-line maintainable hemispherical valve, which comprises a spherical valve body, wherein two opposite ends of the valve body are respectively communicated with a liquid inlet pipe and a liquid outlet pipe, a blocking plate with a circular section is arranged in the valve body, two opposite sides of the blocking plate are symmetrically provided with arc rods, the ends of the two arc rods are respectively provided with a valve rod, the axes of the two valve rods are overlapped and are respectively arranged on the valve body in a penetrating way, and the axes of the valve rods are perpendicular to the axis of the liquid inlet pipe; the end part of the plugging plate, which is far away from the valve rod, is provided with a compression groove, a compression plate is arranged in the compression groove, the periphery of the compression plate is in sealing connection with the inner side wall of the compression groove through a flexible ring, the compression plate, the flexible ring and the compression groove form a sealing cavity, the end part of the plugging plate, which is far away from the valve rod, is also provided with a ring groove, a sealing ring is arranged in the ring groove, the bottom of the ring groove is communicated with the sealing cavity through a vent hole, a spring is arranged between the compression plate and the sealing cavity, and the compression plate can push the sealing ring to extend out of the ring groove through air pressure and push the sealing ring to the communication port of the valve body and the liquid inlet pipe; the valve body is provided with an opening and closing sensor corresponding to the valve rod, the liquid outlet pipe is provided with a flow sensor, and the opening and closing sensor and the flow sensor are connected with a control terminal.

The utility model provides an upper-mounted hemispherical valve capable of being maintained on line, which is characterized by comprising the following technical characteristics:

further, a speed reducer is arranged on the valve body, one of the valve rods is connected with the speed reducer, and a rotating rod capable of driving the valve rod to rotate is arranged on the speed reducer.

Further, a handle is arranged on the rotating rod.

Further, the edge of the end face of the blocking plate, which is far away from the valve rod, is provided with a conical surface, and the annular groove is correspondingly arranged on the conical surface.

Further, a sealing sleeve is further arranged in the communication port of the valve body and the liquid inlet pipe in a penetrating mode, a step is arranged on the end face, away from the blocking plate, of the sealing sleeve, a groove is arranged between the abutting joint of the liquid inlet pipe and the valve body, the step is arranged in the groove, and the width of the groove is larger than the thickness of the step.

Further, the flexible ring is made of rubber.

Further, a plurality of springs are uniformly distributed between the compression plate and the compression groove.

Further, the lower end of the valve body is provided with a plurality of supporting legs.

The utility model has the following beneficial effects: when the valve is used, the valve rod can be rotated to drive the blocking plate to move to be close to the communication port between the valve body and the liquid inlet pipe, the compression plate is propped against the compression spring to move to the bottom of the compression groove close to the blocking plate when liquid flows to the valve body through the liquid inlet pipe, so that the air pressure in the sealing cavity is increased, the excessive air pressure in the sealing cavity can enter the annular groove through the vent hole to push the sealing ring to extend out of the annular groove and prop against the communication port between the valve body and the liquid inlet pipe, the closing and sealing of the valve are completed, and the probability of valve leakage caused by abrasion of the blocking plate of the valve can be effectively reduced; the opening and closing sensor can send signals to the control terminal after the valve body is completely closed, so that workers can timely monitor the opening and closing conditions of the valve through the control terminal, meanwhile, the flow sensor can timely monitor whether liquid flows through the liquid outlet pipe, when the liquid flows through the liquid outlet pipe, the flow sensor can transmit signals of leakage of the valve body to the control terminal, the workers can timely learn and maintain the valve on line through the mode of changing a pipeline and the like, and potential safety hazards are reduced.

Drawings

FIG. 1 is a partial cross-sectional view of an embodiment of the present utility model;

fig. 2 is an enlarged view at a in fig. 1.

11. A valve body; 12. a support leg; 13. a speed reducer; 14. a handle; 15. an opening and closing sensor; 16. sealing sleeve; 17. a groove; 21. a liquid inlet pipe; 22. a liquid outlet pipe; 23. a flow sensor; 31. a closure plate; 32. an arc-shaped rod; 33. a valve stem; 34. a compression tank; 35. a conical surface; 36. a ring groove; 37. a seal ring; 38. a vent hole; 41. a compression plate; 42. a flexible ring; 43. and (3) a spring.

Detailed Description

The utility model will be described in detail hereinafter with reference to the drawings in conjunction with embodiments. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the embodiment of the on-line maintainable hemispherical valve of the present utility model shown in fig. 1 to 2, the on-line maintainable hemispherical valve includes a spherical valve body 11, two opposite ends of the valve body 11 are respectively connected with a liquid inlet pipe 21 and a liquid outlet pipe 22, a plugging plate 31 with a circular cross section is arranged in the valve body 11, two opposite sides of the plugging plate 31 are symmetrically provided with arc rods 32, two ends of the arc rods 32 are respectively provided with a valve rod 33, axes of the two valve rods 33 are coincident and are respectively arranged on the valve body 11 in a penetrating manner, and the axis of the valve rod 33 is perpendicular to the axis of the liquid inlet pipe 21; the end part of the plugging plate 31 far away from the valve rod 33 is provided with a compression groove 34, a compression plate 41 is arranged in the compression groove 34, the periphery of the compression plate 41 is in sealing connection with the inner side wall of the compression groove 34 through a flexible ring 42, the compression plate 41, the flexible ring 42 and the compression groove 34 form a sealing cavity, the end part of the plugging plate 31 far away from the valve rod 33 is also provided with a ring groove 36, a sealing ring 37 is arranged in the ring groove 36, the bottom of the ring groove 36 is communicated with the sealing cavity through a vent hole 38, a spring 43 is arranged between the compression plate 41 and the sealing cavity, and the compression plate 41 can push the sealing ring 37 to extend out of the ring groove 36 through air pressure and push against a communication port of the valve body 11 and the liquid inlet pipe 21; the valve body 11 is provided with an opening and closing sensor 15 corresponding to the valve rod 33, the liquid outlet pipe 22 is provided with a flow sensor 23, and the opening and closing sensor 15 and the flow sensor 23 are connected with a control terminal.

When the valve is used, when the valve is required to be closed, the valve rod 33 is rotated to drive the blocking plate 31 to move to be close to the communication port between the valve body 11 and the liquid inlet pipe 21, the compression plate 41 is propped against when liquid flows to the valve body 11 through the liquid inlet pipe 21, the compression plate 41 compresses the spring 43 to move to the bottom of the compression groove 34 close to the blocking plate 31, so that the air pressure in the sealing cavity is increased, and the excessive air pressure in the sealing cavity can enter the annular groove 36 through the vent hole 38 to push the sealing ring 37 to extend out of the annular groove 36 and prop against the communication port between the valve body 11 and the liquid inlet pipe 21, thereby completing the closing and sealing of the valve, and effectively reducing the probability of valve leakage caused by abrasion of the blocking plate 31 of the valve; the opening and closing sensor 15 can send signals to the control terminal after the valve body 11 is completely closed, so that a worker can monitor the opening and closing condition of the valve in time through the control terminal, meanwhile, the flow sensor 23 can monitor whether liquid flows through the liquid outlet pipe 22 in real time, when the liquid flows through the liquid outlet pipe 22, the flow sensor 23 can transmit signals of leakage of the valve body 11 to the control terminal, the worker can know in time and maintain on line in a pipeline changing mode and the like, and potential safety hazards are reduced.

In one embodiment of the present utility model, preferably, the valve body 11 is provided with a speed reducer 13, wherein one valve rod 33 is connected with the speed reducer 13, the speed reducer 13 is provided with a rotating rod capable of driving the valve rod 33 to rotate, and by providing the speed reducer 13, a worker rotates the high-speed input shaft of the speed reducer 13 to drive the low-speed output shaft to drive the valve rod 33 to rotate, so that the operability of the present utility model is improved, and the worker can control more labor-saving.

In one embodiment of the present utility model, the handle 14 is preferably provided on the rotating rod to further enhance the ease of handling of the valve stem 33.

In one embodiment of the present utility model, preferably, a conical surface 35 is provided on an edge of the end surface of the plugging plate 31 away from the valve rod 33, and the annular groove 36 is correspondingly formed on the conical surface 35, so that the plugging plate 31 is convenient to butt-joint with the communication port of the valve body 11 and the liquid inlet tube 21 through the conical surface 35.

In one embodiment of the present utility model, preferably, a sealing sleeve 16 is further disposed in the communication port between the valve body 11 and the liquid inlet pipe 21 in a penetrating manner, a step is disposed on an end surface of the sealing sleeve 16 away from the plugging plate 31, a groove 17 is disposed between the abutting positions of the liquid inlet pipe 21 and the valve body 11, the step is disposed in the groove 17, the width of the groove 17 is greater than the thickness of the step, and after the present utility model is closed, when the liquid is in the liquid inlet pipe 21, the water flow can push the sealing sleeve 16 to move towards the plugging plate 31 and push against the plugging plate 31 to form a further seal.

In one embodiment of the present utility model, the flexible ring 42 is preferably made of rubber, so that the flexible ring 42 can provide a good deformation effect during the relative movement between the compression plate 41 and the compression groove 34.

In one embodiment of the present utility model, preferably, a plurality of springs 43 are uniformly arranged between the compression plate 41 and the compression groove 34, so as to improve the rebound effect of the compression plate 41.

In one embodiment of the present utility model, preferably, the lower end of the valve body 11 is provided with a plurality of supporting legs 12, so that the valve body 11 is prevented from being in direct contact with the ground, and the damage probability is reduced.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model 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 scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (8)

1. The upper-mounted hemispherical valve capable of being maintained online comprises a spherical valve body, wherein two opposite ends of the valve body are respectively communicated with a liquid inlet pipe and a liquid outlet pipe; the end part of the plugging plate, which is far away from the valve rod, is provided with a compression groove, a compression plate is arranged in the compression groove, the periphery of the compression plate is in sealing connection with the inner side wall of the compression groove through a flexible ring, the compression plate, the flexible ring and the compression groove form a sealing cavity, the end part of the plugging plate, which is far away from the valve rod, is also provided with a ring groove, a sealing ring is arranged in the ring groove, the bottom of the ring groove is communicated with the sealing cavity through a vent hole, a spring is arranged between the compression plate and the sealing cavity, and the compression plate can push the sealing ring to extend out of the ring groove through air pressure and push the sealing ring to the communication port of the valve body and the liquid inlet pipe; the valve body is provided with an opening and closing sensor corresponding to the valve rod, the liquid outlet pipe is provided with a flow sensor, and the opening and closing sensor and the flow sensor are connected with a control terminal.

2. The top-loading on-line serviceable hemisphere valve of claim 1 wherein: the valve body is provided with a speed reducer, one of the valve rods is connected with the speed reducer, and the speed reducer is provided with a rotating rod capable of driving the valve rod to rotate.

3. The top-loading on-line serviceable hemisphere valve of claim 2 wherein: the rotating rod is provided with a handle.

4. The top-loading on-line serviceable hemisphere valve of claim 1 wherein: the end surface edge of the blocking plate, which is far away from the valve rod, is provided with a conical surface, and the annular groove is correspondingly arranged on the conical surface.

5. The top-loading on-line serviceable hemisphere valve of claim 1 wherein: the sealing sleeve is further arranged in the communication port of the valve body and the liquid inlet pipe in a penetrating mode, a step is arranged on the end face, away from the blocking plate, of the sealing sleeve, a groove is arranged between the abutting joint of the liquid inlet pipe and the valve body, the step is arranged in the groove, and the width of the groove is larger than the thickness of the step.

6. The top-loading on-line serviceable hemisphere valve of claim 1 wherein: the flexible ring is made of rubber.

7. The top-loading on-line serviceable hemisphere valve of claim 1 wherein: and a plurality of springs are uniformly distributed between the compression plate and the compression groove.

8. The top-loading on-line serviceable hemisphere valve of claim 1 wherein: the lower end of the valve body is provided with a plurality of supporting legs.