Ball valve device with monitoring function and switch equipment monitoring system

Abstract

The utility model provides a ball valve device with a monitoring function and a switch equipment monitoring system. The ball valve device is used for connecting a density relay and switch equipment. The ball valve assembly in the ball valve device can switch connection and disconnection of the second valve port and the valve cavity in the device, and therefore real-time monitoring of gas parameters in switch equipment and verification of the density relay are achieved through the density relay and the monitoring module in the ball valve device. The ball valve device is convenient to open and close, small in resistance and long in service life and has a real-time monitoring function.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power equipment, in particular to a ball valve device with monitoring function and a switch equipment monitoring system. Background Art

[0002] At present, the high-voltage switches in the high-voltage power transmission system are equipped with density relays for monitoring the density of SF6 gas in the sealed container. A valve device is generally installed between the density relay and the high-voltage switch. The performance of the valve device can directly affect the reliability, safety and service life of the entire high-voltage power transmission system.

[0003] The valve device on the high-pressure switch in the prior art, such as the patent with publication number CN218782377U, is equipped with a hand wheel switch. When inspecting or checking the density relay, the hand wheel switch is adjusted to cut off the pipeline gas source. However, this method has the disadvantages of large resistance when switching, short service life and no other functions. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, the technical problem to be solved by the utility model is to provide a ball valve device and a switch device monitoring system with a monitoring function, so as to solve the problems in the prior art of large resistance when cutting off the pipeline gas source by a handwheel switch and the valve device having no other functions.

[0005] In order to solve the above technical problems, the utility model provides a ball valve device with a monitoring function, which is used to connect a density relay and a switch device, including: a ball valve device body, the ball valve device body includes a valve seat and a first valve port, a second valve port, a third valve port and a ball valve assembly arranged on the valve seat; the valve seat includes a valve cavity, the first valve port, the second valve port and the third valve port are respectively connected to the valve cavity, and the first valve port and the second valve port are respectively connected to the density relay and the switch device; the ball valve assembly, through which the second valve port and the valve cavity can be switched on and off; a monitoring module, the monitoring module is connected to the valve cavity through the third valve port; the second valve port is disconnected from the valve cavity through the ball valve assembly, thereby satisfying the calibration of the density relay; the second valve port is connected to the valve cavity through the ball valve assembly, and the density relay and the monitoring module are used to monitor various parameters of the gas in the switch device.

[0006] In some embodiments of the utility model, the ball valve assembly includes a spherical valve core and a knob connected to the spherical valve core, the spherical valve core is provided with a vent hole for gas to pass through, and the spherical valve core is rotatably arranged in the valve cavity, and the knob is arranged on the outside of the valve seat, and the knob is rotated to align the vent hole with the second valve port, and the switch device is connected to the valve cavity; the knob is rotated to seal the second valve port with the outer side wall of the spherical valve core, and the switch device is disconnected from the valve cavity.

[0007] In some embodiments of the utility model, the ball valve assembly also includes: a connecting rod; a fourth valve port is also provided on the valve seat; one end of the connecting rod passes through the fourth valve port and is connected to a spherical valve core provided inside the valve cavity, and the other end is connected to the knob on the outside of the valve seat.

[0008] In some embodiments of the utility model, a groove is provided on the spherical valve core, and the connecting rod has a convex portion that can be embedded in the groove; when the groove and the convex portion are engaged, the spherical valve core and the connecting rod are in a connected state; when the knob is rotated, the connecting rod, driven by the knob, drives the spherical valve core to rotate through the engaged groove and the convex portion, so that the air permeable through hole is aligned with the second valve port, and the switch device is connected to the valve cavity; when the knob is rotated, the connecting rod, driven by the knob, drives the spherical valve core to rotate through the engaged groove and the convex portion, so that the outer wall of the spherical valve core covers the second valve port, and the switch device is disconnected from the valve cavity.

[0009] In some embodiments of the present invention, the ball valve device with monitoring function further includes: a first stop-sealing valve, and the first valve port is connected to the density relay through the first stop-sealing valve.

[0010] In some embodiments of the utility model, a fifth valve port is further provided on the valve seat; the ball valve device body further comprises a second stop valve, one end of which is connected to the fifth valve port and communicates with the valve cavity.

[0011] In some embodiments of the utility model, the other end of the second stop valve is connected to the air supply verification device; after the second valve port is connected to the valve cavity through the ball valve assembly, air is supplied to the switching device through the air supply verification device; after the second valve port is disconnected from the valve cavity through the ball valve assembly, the density relay is verified through the air supply verification device.

[0012] In some embodiments of the present invention, the parameters of the gas in the switch device include: temperature, pressure, density and trace water content of the gas.

[0013] In some embodiments of the present invention, the monitoring module is also connected to a background system to send the monitored parameters of the gas in the switch device to the background system.

[0014] The utility model also provides a switch equipment monitoring system, comprising the ball valve device with monitoring function as described above, and an air replenishment verification device, a density relay and a switch equipment respectively connected to the ball valve device with monitoring function.

[0015] As described above, the ball valve device with monitoring function and the switchgear monitoring system of the utility model have the following beneficial effects:

[0016] The ball valve device is used to connect the density relay and the switch device. The ball valve assembly in the ball valve device can switch the second valve port and the valve cavity in the device, so as to realize the real-time monitoring of the gas parameters in the switch device and the calibration of the density relay through the density relay and the monitoring module in the ball valve device. The ball valve device of the utility model is convenient to switch, has low resistance, long service life and has real-time monitoring function. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Shown is a schematic structural diagram of a ball valve device with a monitoring function in the utility model.

[0018] Figure 2 Shown is a bottom view of the ball valve device with monitoring function in the utility model.

[0019] Figure 3 Display as Figure 2 AA section view of the device in the figure.

[0020] Figure 4 Display as Figure 2 AA section view of the middle valve seat.

[0021] Figure 5 Shown is a front view of a ball valve device with a monitoring function in the present invention.

[0022] Figure 6 Display as Figure 5 BB section view of the device in the middle.

[0023] Figure 7 Display as Figure 5 BB section view of the middle ball valve assembly.

[0024] Figure 8 Shown is a structural schematic diagram of the valve seat in the utility model.

[0025] Fig. 9 Shown is a schematic structural diagram of the ball valve assembly in the utility model.

[0026] Component number explanation: 1-ball valve device body; 11-valve seat; 12-first valve port; 121-first stop valve; 13-second valve port; 131-seal; 14-third valve port; 15-ball valve assembly; 151-spherical valve core; 151a-air permeable through hole; 151b-groove; 151c-ball side pressure sleeve; 152-knob; 152a-switch panel; 153-connecting rod; 153a-convex part; 153b-cross recessed pan head screw; 153c-standard spring washer; 153d-flat washer; 153e-pressure sleeve; 153f-sealing ring; 16-valve chamber; 17-fourth valve port; 18-fifth valve port; 181-second stop valve; 2-monitoring module. DETAILED DESCRIPTION

[0027] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0028] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the utility model, should still fall within the scope of the technical content disclosed by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the utility model without substantial change of the technical content.

[0029] like Figures 1 to 9 As shown, the utility model provides a ball valve device with a monitoring function.

[0030] The ball valve device with monitoring function is used to connect the density relay and the switch device, including:

[0031] A ball valve device body 1, the ball valve device body comprising a valve seat 11 and a first valve port 12, a second valve port 13, a third valve port 14 and a ball valve assembly 15 arranged on the valve seat 11; the valve seat 11 comprises a valve cavity 16, the first valve port 12, the second valve port 13, the third valve port 14 are respectively connected to the valve cavity 16, the first valve port 12 and the second valve port 13 are respectively connected to the density relay and the switch device; the ball valve assembly 15, through which the second valve port 13 and the valve cavity 16 can be switched on and off;

[0032] A monitoring module 2, wherein the monitoring module 2 is in communication with the valve cavity 16 through the third valve port 14;

[0033] The second valve port 13 is disconnected from the valve cavity 16 through the ball valve assembly 15, thereby satisfying the calibration of the density relay; the second valve port 13 is connected to the valve cavity 16 through the ball valve assembly 15, and the density relay and the monitoring module 2 are used to monitor various parameters of the gas in the switch device.

[0034] In one embodiment, the types of switchgear include: high voltage switchgear and medium voltage switchgear.

[0035] In one embodiment, the gas is SF6 gas.

[0036] In one embodiment, if Figures 2 to 6 As shown, a sealing member 131 is provided at the connection between the second valve port 13 and the switch device to prevent gas leakage inside the valve cavity 16 and external air from entering the valve cavity 16 .

[0037] In a specific embodiment, an O-ring with a size of φ20*2.5 may be used as the sealing member 131 .

[0038] In one embodiment, if Figures 1 to 7 as well as Fig. 9 As shown, the ball valve assembly 15 includes a spherical valve core 151 and a knob 152 connected to the spherical valve core 151, the spherical valve core 151 is provided with a vent hole 151a for gas to pass through, and the spherical valve core 151 is rotatably arranged in the valve cavity 16, and the knob 152 is arranged on the outside of the valve seat 11, and the knob 152 is rotated to align the vent hole 151a with the second valve port 13, and the switch device is connected to the valve cavity 16; the knob 152 is rotated to cover the second valve port 13 with the outer side wall of the spherical valve core 151, and the switch device is disconnected from the valve cavity 16.

[0039] In one embodiment, if Figure 6 as well as Figure 7 As shown, the ball valve assembly 15 also includes: a connecting rod 153; a fourth valve port 17 is also provided on the valve seat 11; one end of the connecting rod 153 passes through the fourth valve port 17 and is connected to the spherical valve core 151 provided inside the valve cavity 16, and the other end is connected to the knob 152 on the outside of the valve seat 11.

[0040] In one embodiment, if Figure 6 as well as Figure 7As shown, the other end of the connecting rod 153 is connected to the knob 152 disposed on the outer side of the valve seat 11 through a screw and a washer.

[0041] In a specific embodiment, if Figure 6 as well as Figure 7 As shown, a cross recessed pan head screw 153 b , a standard spring washer 153 c and a flat washer 153 d may be used to connect the other end of the connecting rod 153 to a knob 152 disposed on the outside of the valve seat 11 .

[0042] In one embodiment, if Fig. 9 As shown, a sleeve 153 b is further provided on the outside of the connecting rod 153 for fixing the connecting rod 153 and the knob 152 .

[0043] In one embodiment, if Fig. 9 As shown, a sealing ring is also provided on the connecting rod 153 to prevent gas inside the valve cavity 16 from leaking and external air from entering the valve cavity 16 .

[0044] In a specific embodiment, an O-ring with a size of φ6*1.8 is disposed on the connecting rod 153 .

[0045] In one embodiment, if Fig. 9 As shown, the spherical valve core 151 is also connected to a ball side compression sleeve 151c for connecting to the second stop valve 181.

[0046] In one embodiment, if Figure 7 as well as Fig. 9 As shown, the spherical valve core 151 is provided with a groove 151b, and the connecting rod 153 has a convex portion 153a that can be embedded in the groove 151b; when the groove 151b is engaged with the convex portion 153a (the engaged state is shown in FIG. Figure 7 as well as Fig. 9 ), the spherical valve core 151 and the connecting rod 153 are in a connected state; when the knob 152 is rotated, the connecting rod 153, driven by the knob 152, drives the spherical valve core 151 to rotate through the embedded groove 151b and the convex portion 153a, so that the air-permeable through hole 151a is aligned with the second valve port 13, and the switch device is connected to the valve cavity 16; when the knob 152 is rotated, the connecting rod 153, driven by the knob 152, drives the spherical valve core 151 to rotate through the embedded groove 151b and the convex portion 153a, so that the outer wall of the spherical valve core 151 covers the second valve port 13, and the switch device is connected and disconnected from the valve cavity 16. In one embodiment, as Figure 1 , Figure 5 , Figure 7 as well as Fig. 9As shown, a switch panel 152a is provided on the knob 152 for indicating the on / off state of the second valve port and the valve cavity.

[0047] In one embodiment, if Figure 1 , Figure 3 as well as Figure 5 As shown, the ball valve device with monitoring function further includes: a first stop valve 121 , and the first valve port 12 is connected to the density relay through the first stop valve 121 .

[0048] In one embodiment, if Figures 1 to 6 , Figure 8 As shown, a fifth valve port 18 is further provided on the valve seat 11 ; the ball valve device body 1 further comprises a second stop valve 181 , one end of which is connected to the fifth valve port 18 and communicates with the valve cavity 16 .

[0049] In one embodiment, if Figures 1 to 6 , Figure 8 As shown, the other end of the second stop valve 181 is connected to the air supply verification device; after the second valve port 13 and the valve cavity 16 are connected through the ball valve assembly 15, air is supplied to the switching device through the air supply verification device; after the second valve port 13 and the valve cavity 16 are disconnected through the ball valve assembly 15, the density relay can be verified through the air supply verification device.

[0050] In one embodiment, the parameters of the gas in the switch device include: temperature, pressure, density and water content of the gas.

[0051] In one embodiment, the monitoring module is also connected to a background system to send the monitored parameters of the gas in the switch device to the background system to achieve remote monitoring of the switch device.

[0052] Specifically, the density of the gas in the switch device is measured by a density relay, and the temperature, pressure, density and trace water content of the gas in the switch device are measured by a monitoring module.

[0053] In a specific embodiment, the monitoring module may use a density micro-water transmitter, which can track the nonlinear changes of gas pressure and the changes of micro-water content in real time.

[0054] The following will explain the process of the ball valve assembly controlling the connection and disconnection of the second valve port and the valve cavity:

[0055] When the switchgear needs to be supplemented with air, the knob 152 is rotated, and the connecting rod 153, driven by the knob 152, drives the spherical valve core 151 to rotate through the engaged groove 151b and the convex portion 153a, so that the air-permeable through hole 151a is aligned with the second valve port 13. At this time, the state of the air-permeable through hole 151a is as follows: Figure 3 , Figure 4 as well as Figure 6 At this time, the first stop valve 121, the second stop valve 181, the monitoring device 2 and the switch device are all connected to the valve chamber 16. Then the air replenishment verification device is opened, and the gas in the air replenishment verification device flows through the second stop valve 181, the air permeable hole 151a, the second valve port 13 in sequence, and finally enters the switch device.

[0056] When the density relay works normally, the air-permeable through hole 151a is aligned with the second valve port 13, and the gas supply verification device is in a closed state. At this time, the density relay and the monitoring module 2 monitor various parameters of the gas in the switchgear.

[0057] When the density relay needs to be calibrated, the knob 152 is rotated, and the connecting rod 153, driven by the knob 152, drives the spherical valve core 151 to rotate through the engaged groove 151b and the convex portion 153a, so that the outer wall of the spherical valve core 151 covers the second valve port 13, and the switch device is disconnected from the valve chamber 16. At this time, the second stop valve 181 and the switch device are all in a non-conductive state with the valve chamber 16, and the first stop valve 121 and the monitoring device 2 are in conductive state with the valve chamber 16.

[0058] Similar to the above embodiment, the utility model also provides a switch device monitoring system.

[0059] The switchgear monitoring system comprises: a ball valve device with a monitoring function, and an air supply verification device, a density relay and a switchgear respectively connected to the ball valve device with a monitoring function.

[0060] It should be noted that, since the ball valve device with a monitoring function in this embodiment can realize all the functions of the ball valve device with a monitoring function in the above embodiments, repeated explanation is not given here.

[0061] In summary, the utility model provides a ball valve device with monitoring function and a switch device monitoring system, and the ball valve device is used to connect the density relay and the switch device. The ball valve assembly in the ball valve device can switch the on and off of the second valve port and the valve cavity in the device, thereby realizing real-time monitoring of gas parameters in the switch device and calibration of the density relay through the density relay and the monitoring module in the ball valve device. The ball valve device of the utility model is convenient to switch, has low resistance, long service life and has real-time monitoring function. Therefore, the utility model effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

[0062] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A ball valve device with monitoring function, characterized in that: For connecting density relays and switchgear, including: A ball valve device body, the ball valve device body comprising a valve seat and a first valve port, a second valve port, a third valve port and a ball valve assembly arranged on the valve seat; the valve seat comprising a valve cavity, the first valve port, the second valve port and the third valve port are respectively communicated with the valve cavity, the first valve port and the second valve port are respectively connected to the density relay and the switch device; the ball valve assembly, through which the second valve port and the valve cavity can be switched on and off; A monitoring module, wherein the monitoring module is in communication with the valve cavity through the third valve port; The second valve port is disconnected from the valve cavity through the ball valve assembly to meet the requirements of the density relay calibration; the second valve port is connected to the valve cavity through the ball valve assembly, and the density relay and the monitoring module are used to monitor various parameters of the gas in the switch device.

2. The ball valve device with monitoring function according to claim 1, characterized in that: The ball valve assembly includes a spherical valve core and a knob connected to the spherical valve core. The spherical valve core is provided with a ventilation hole for gas to pass through, and the spherical valve core is rotatably arranged in the valve cavity. The knob is arranged on the outside of the valve seat. The ventilation hole is aligned with the second valve port, and the switch device is connected to the valve cavity; the knob is rotated to cover the second valve port with the outer side wall of the spherical valve core, and the switch device is disconnected from the valve cavity.

3. The ball valve device with monitoring function according to claim 2, characterized in that: The ball valve assembly also includes: a connecting rod; a fourth valve port is also arranged on the valve seat; one end of the connecting rod passes through the fourth valve port and is connected to the spherical valve core arranged inside the valve cavity, and the other end is connected to the knob outside the valve seat.

4. The ball valve device with monitoring function according to claim 3, characterized in that: The spherical valve core is provided with a groove, and the connecting rod has a convex portion that can be embedded in the groove; when the groove and the convex portion are embedded, the spherical valve core and the connecting rod are in a connected state; when the knob is rotated, the connecting rod, driven by the knob, drives the spherical valve core to rotate through the embedded groove and the convex portion, so that the air permeable through hole is aligned with the second valve port, and the switch device is connected to the valve cavity; when the knob is rotated, the connecting rod, driven by the knob, drives the spherical valve core to rotate through the embedded groove and the convex portion, so that the outer wall of the spherical valve core covers the second valve port, and the switch device is disconnected from the valve cavity.

5. The ball valve device with monitoring function according to claim 1, characterized in that: The ball valve device with monitoring function further includes: a first stop-sealing valve, and the first valve port is connected to the density relay through the first stop-sealing valve.

6. The ball valve device with monitoring function according to claim 1, characterized in that: The valve seat is also provided with a fifth valve port; the ball valve device body also includes a second stop-seal valve, one end of which is connected to the fifth valve port and communicated with the valve cavity.

7. The ball valve device with monitoring function according to claim 6, characterized in that: The other end of the second stop valve is connected to the air supply verification device; after the second valve port is connected to the valve cavity through the ball valve assembly, air is supplied to the switching device through the air supply verification device; after the second valve port is disconnected from the valve cavity through the ball valve assembly, the density relay is verified through the air supply verification device.

8. The ball valve device with monitoring function according to claim 1, characterized in that: The parameters of the gas in the switchgear include: temperature, pressure, density and trace water content of the gas.

9. The ball valve device with monitoring function according to claim 1, characterized in that: The monitoring module is also connected to the background to send the monitored parameters of the gas in the switchgear to the background.

10. A switchgear monitoring system, characterized in that: It comprises a ball valve device with monitoring function as claimed in any one of claims 1 to 9, and an air supply verification device, a density relay and a switch device respectively connected to the ball valve device with monitoring function.

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