CN115342980A - GIS intelligent detection system - Google Patents

Abstract

The invention belongs to the technical field of equipment detection, and is specifically a GIS intelligent detection system, which includes a sealing sleeve, an engaging mechanism, a gas transmission device, and SF ₆ gas detection equipment, and the sealing sleeve is made of a gas-permeable material; the sealing The inside of the sleeve is provided with a gas guide ring, and the gas guide ring is provided with a groove on the side close to the inner wall of the sealing sleeve; the gas transmission device is connected to the inside of the groove, and the gas in the groove is collected output; the SF ₆ gas detection equipment is connected to the outlet of the gas transmission device; both ends and inside of the sealing sleeve are provided with connecting blocks; the connecting blocks at both ends of the sealing sleeve pass through the snap-fit Mechanism clamping; the gas guiding ring is made of elastic rubber material, and the sealing sleeve is made of elastic cloth; the invention has a simple structure and can solve the problem of the inability to accurately locate and detect flanges that leak SF ₆ gas in the prior art The accuracy rate is not high, time-consuming and labor-intensive but the effect is not good.

Description

A GIS Intelligent Detection System

technical field

The invention belongs to the technical field of equipment detection, in particular to a GIS intelligent detection system.

Background technique

SF ₆ has high electrical insulation strength, and its arc extinguishing capacity is about 100 times that of air. It is used as an arc extinguishing medium for high-voltage circuit breakers. In ultra-high voltage and ultra-high voltage circuit breakers, SF ₆ has replaced oil as an arc extinguishing medium. And has largely replaced compressed air; SF ₆ gas-insulated fully enclosed switchgear occupies a much smaller area than conventional open high-voltage power distribution devices, and its operation is not affected by external weather and environmental conditions, so it is widely used in EHV and UHV power systems.

At present, SF ₆ gas is widely used in power system GIS and circuit breaker insulation medium. SF ₆ gas leaks during operation. It is absolutely not allowed to exceed the leakage standard during the operation of the equipment. The staff must accurately detect it during operation. The SF ₆ pressure value of the equipment is compared between the time interval and other conditions. If a leak occurs or an automatic alarm occurs, the exact leak point must be found and maintained quickly.

In the prior art, there are also some technical solutions for special detection bags for GIS air leakage. For example, a Chinese patent with application number CN202110161040.4 discloses a special detection bag for GIS air leakage. The wrapping rope at the end; the packaging sleeve is wrapped outside the flange; the upper end of the packaging sleeve is provided with two sealing zippers; the two sealing zippers are connected to each other; the lower end of the packaging sleeve is provided with a vent plug; although This invention can solve the technical problem that the GIS gas leakage detection device cannot be reused and is inconvenient to install. However, because the SF ₆ gas leaks through the connection of two flanges, the detection bag is a large-area collection of the covered flanges. , cannot effectively collect the leaked SF ₆ gas, resulting in low detection accuracy, time-consuming and labor-intensive problems with poor results.

Contents of the invention

In order to make up for the deficiencies of the existing technology and solve the problems in the prior art that the flanges leaking SF ₆ gas cannot be accurately positioned, the detection accuracy is not high, time-consuming and labor-intensive but the effect is not good, a GIS proposed by the present invention Intelligent detection system.

The technical solution adopted by the present invention to solve the technical problem is: a GIS intelligent detection system according to the present invention, including a sealing sleeve, a snap-fit mechanism, a gas delivery device, and SF ₆ gas detection equipment;

The engaging mechanism is located at both ends of the sealing sleeve, and is used to connect the sealing sleeve into a ring shape;

The sealing sleeve is made of breathable material;

The inside of the sealing sleeve is provided with an air guide ring, and the air guide ring is provided with a groove on the side close to the inner wall of the sealing sleeve;

The gas transmission device is connected to the inside of the groove, and the gas in the groove is collected and output;

The SF ₆ gas detection equipment is connected to the outlet of the gas delivery device.

Preferably, connecting blocks are provided at both ends and inside of the sealing sleeve; the connecting blocks at both ends of the sealing sleeve are clamped by the engaging mechanism;

The air guide ring runs through the connecting block inside the sealing sleeve.

Preferably, the air guide ring is made of elastic rubber material, and the sealing sleeve is made of elastic cloth.

Preferably, the gas delivery device includes a conduit and an adapter port; the conduit communicates with the inside of the groove;

The adapter port is sealed by a rubber plug;

The adapter port is used to connect the external SF ₆ gas detection equipment.

Preferably, an air cavity is opened inside the air guide ring; the air cavity is arc-shaped, and the opening faces to the inner wall side of the sealing sleeve;

The air cavity is connected with an external air intake device.

Preferably, the space of the air cavity increases from the arc surface to both ends of the air cavity.

Preferably, the engaging mechanism includes a slider and a chute;

The slider is fixedly connected to the vertical direction of the connecting block at one end of the sealing sleeve;

A chute is opened on the connecting block at the other end of the sealing sleeve;

The slider is matched with the chute.

Preferably, a magnetic material layer is laid on the inner wall of the chute;

The slider is made of magnetic material;

The chute and the slider attract each other.

Preferably, a cavity is opened inside the slider; the cavity communicates with the air cavity.

Preferably, the cavity is located on a side close to the inner wall of the sealing sleeve.

The beneficial effects of the present invention are as follows:

1. A GIS intelligent detection system according to the present invention, by setting the air guide ring and the air cavity, the external air intake device can enter the air intake inside the air cavity so that after the air cavity expands, the air guide ring is placed close to the sealing sleeve The groove on one side of the inner wall is close to the flange, so that the SF ₆ gas leaked between the two flanges can completely enter the inside of the groove, thereby reducing the continuous leakage of the SF ₆ gas collected inside the groove, thereby improving The use effect of the device improves the accuracy of the device in measuring whether the SF ₆ gas concentration exceeds the standard, reduces the workload of staff, improves the use effect of the device, and has certain practical performance.

2. A GIS intelligent detection system according to the present invention, by setting the chute, the slider and the cavity, it can be realized that when the air intake device enters the air cavity and the cavity expands, the outer wall of the slider is close to the chute The inner wall is in close contact with the two, avoiding the phenomenon that the grooves at the connecting blocks at both ends of the sealing sleeve are not tightly connected with the flange, improving the sealing performance of the device and improving the use effect of the device.

Description of drawings

The present invention will be further described below in conjunction with accompanying drawing.

Fig. 1 is the schematic diagram after the present invention is cut open;

Fig. 2 is a partial enlarged view of place A in Fig. 1;

Fig. 3 is a schematic diagram of the internal structure of the present invention;

In the figure: sealing sleeve 1, connecting block 2, air guide ring 3, air chamber 31, groove 4, air delivery device 5, conduit 51, adapter port 52, slider 61, chute 62, cavity 63.

Detailed ways

In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

As shown in Figures 1 to 3, a GIS intelligent detection system according to the present invention includes a sealing sleeve 1, an engaging mechanism, a gas delivery device 5, and SF ₆ gas detection equipment;

The engaging mechanism is located at both ends of the sealing sleeve 1 and is used to connect the sealing sleeve 1 into a ring;

The sealing sleeve 1 is made of a breathable material;

The inside of the sealing sleeve 1 is provided with an air guide ring 3, and the air guide ring 3 is provided with a groove 4 on a side close to the inner wall of the sealing sleeve 1;

The gas delivery device 5 is connected to the inside of the groove 4, and the gas in the groove 4 is collected and then output;

The SF ₆ gas detection equipment is connected to the outlet of the gas delivery device 5 .

When working, take the device that matches the size of the flanges, cover the joint of the two flanges with the sealing sleeve 1, and clamp the device to the outer ring of the flanges through the engaging mechanism, and then Connect the probe of the SF ₆ gas detection equipment with the gas transmission device 5, because the sealing sleeve 1 is made of a gas-permeable material, so that the groove 4 can be aligned with the joint of the two flanges, and the gap between the two flanges can be adjusted. Collect the SF ₆ gas leaked between the gaps, and after waiting for a period of time, you can measure whether the SF ₆ gas leaks from the flange at this place. The application effectively avoids the large-area leakage in the prior art by setting the groove 4. Collecting the SF ₆ gas leaked from the flange leads to inaccurate measured data and takes a lot of time, which further improves the use effect of the device.

As an embodiment of the present invention, both ends of the sealing sleeve 1 and inside are provided with connecting blocks 2; the connecting blocks 2 at both ends of the sealing sleeve 1 are clamped by the engaging mechanism;

The air guide ring 3 runs through the connecting block 2 inside the sealing sleeve 1;

When working, use this device that matches the size of the flanges, and wrap the sealing sleeve 1 on the joint of the two flanges, so that the air guide ring 3 is on the groove near the inner wall of the sealing sleeve 1 4 Align the joints of the two flanges, and then connect the connecting blocks 2 at both ends of the sealing sleeve 1, and then collect the SF ₆ gas leaked between the two flanges, and the gas guide ring 3 After the two ends are snapped and connected, the inner wall of the gas guide ring 3 is close to the flange through the sealing sleeve 1, which effectively prevents the SF ₆ gas leaking between the two flanges from leaking through the gap between the gas guide ring 3 and the flange In addition, avoid the problem that the accuracy of the device measuring the leaked SF ₆ gas is poor;

At the same time, both ends and inside of the sealing sleeve 1 are provided with a connecting block 2, and the connecting block 2 is attached to the flange plate on the surface close to the flange plate, which can effectively assist the groove 4 to align with the joint of the two flange plates, and improve The speed of installation of the device and the effect of its use.

As an embodiment of the present invention, the air guiding ring 3 is made of elastic rubber material, and the sealing sleeve 1 is made of elastic cloth;

When working, the air guide ring 3 is made of elastic rubber material, and the sealing sleeve 1 is made of elastic cloth, so that when the device is selected to be smaller than the flange, the device can wrap the flange by stretching. After stretching, the groove 4 on the gas guide ring 3 still needs to correspond to the connection of the two flanges, and then connect the probe of the SF ₆ gas detection equipment to the gas transmission device 5, and wait for a period of time , that is, to measure whether the flange plate leaks SF ₆ gas at the place, thereby improving the use effect of the device and further improving the convenience of the device.

As an embodiment of the present invention, the gas delivery device 5 includes a conduit 51 and an adapter port 52; the conduit 51 communicates with the inside of the groove 4;

The adapter port 52 is sealed by a rubber plug;

The adapter port 52 is used to connect the SF ₆ gas detection equipment;

When working, after the collection is completed, take out the rubber plug on the adapter port 52, extend the probe of the external SF ₆ gas detection device into the interior of the adapter port 52, and the adapter port 52 communicates with the inside of the groove 4 through the conduit 51 , so that the gas detection equipment can detect the concentration of SF ₆ gas leaked from the flange collected inside the groove 4, thereby judging whether the SF ₆ gas is leaked from the flange at this place, improving the sealing performance of the device, and improving the measurement Data Accuracy.

As an embodiment of the present invention, an air chamber 31 is opened inside the air guide ring 3; the air chamber 31 is arc-shaped, and the opening faces the inner wall side of the sealing sleeve 1;

The air chamber 31 is connected to an external air intake device;

When working, when the device is installed on the outside of the flange, the air cavity 31 is inflated through the external air intake device, and the air cavity 31 expands, so that the air guide ring 3 is placed on the groove near the inner wall of the sealing sleeve 1 4. The sidewalls on both sides are close to the flanges, so that the SF ₆ gas leaked between the two flanges can completely enter the inside of the groove 4, effectively reducing the SF ₆ gas collected inside the groove 4 to continue to be guided. The gap between the ring 3 and the flange leaks, thereby improving the use effect of the device, improving the accuracy of the device in measuring whether the SF ₆ gas concentration exceeds the standard, reducing the workload of the staff, and having certain practical performance.

As an embodiment of the present invention, the space of the air cavity 31 increases from the arc surface to both ends of the air cavity 31;

During operation, after the external air intake device has finished air intake into the air cavity 31, the change of the air cavity 31 at both ends close to the sealing sleeve 1 is greater than the change of the air cavity 31 at the side close to the outer wall of the sealing sleeve 1, thereby realizing the air cavity The two ends of 31 squeeze the air guide ring 3 to the side close to the inner wall of the sealing sleeve 1 to a greater extent, further improving the sealing performance of the upper and lower sides of the groove 4 of the device, and preventing leakage through the gap between the two flanges The SF ₆ gas inside the groove 4 leaks to the outside through the gap between the device and the flange, thereby improving the sealing performance and use effect of the device.

As an embodiment of the present invention, the engaging mechanism includes a slider 61 and a sliding slot 62;

The slider 61 is fixedly connected to the vertical direction of the connecting block 2 at one end of the sealing sleeve 1;

A chute 62 is opened on the connecting block 2 at the other end of the sealing sleeve 1;

The slider 61 is compatible with the chute 62;

During work, when the connecting blocks 2 at both ends of the sealing sleeve 1 are engaged and connected, the slider 61 is put into the inside of the chute 62, and the slider 61 is shaped like a trapezoid, a T shape, etc., so that the slider 61 and the chute 62 The structure of the connection is not easy to be disconnected after being engaged, so that after the device is stretched, under the action of the slider 61 and the chute 62, the two ends of the sealing sleeve 1 of the device are connected and the sealing of the device can be improved. performance.

As an embodiment of the present invention, a magnetic material layer is laid on the inner wall of the chute 62;

The slider 61 is made of magnetic material;

The chute 62 and the slider 61 attract each other;

During work, after slide block 61 enters chute 62 completely, because the magnetic material layer is laid on the inner wall of chute 62, slide block 61 is made of magnetic material, and mutual attraction between the two, thereby makes slide block 61 can close Attach the sliding groove 62 to improve the stability of the connection between the two, and avoid the problem that the connection block 2 at both ends of the sealing sleeve 1 is disconnected and the work efficiency is reduced.

As an embodiment of the present invention, a cavity 63 is opened inside the slider 61; the cavity 63 communicates with the air cavity 31;

During operation, when the air intake device feeds air into the air cavity 31, the gas inside the air cavity 31 enters the cavity 63, causing the cavity 63 to expand, so that the outer wall of the slider 61 is close to the inner wall of the chute 62, so that the gap between the two The tight contact avoids the phenomenon that the groove 4 at the connection block 2 at both ends of the sealing sleeve 1 is not tightly connected with the flange, improves the sealing performance of the device, and improves the use effect of the device.

As an embodiment of the present invention, the cavity 63 is located near the inner wall of the sealing sleeve 1;

During operation, when the air in the cavity 63 expands, because the cavity 63 is located on the side close to the inner wall of the sealing sleeve 1 inside the slider 61, the gas inside the cavity 63 squeezes the slider 61 to the side close to the inner wall of the sealing sleeve 1, Therefore, the inner wall of the sealing sleeve 1 is more closely attached to the flange, further improving the sealing effect of the device, improving the efficiency of the device in collecting SF ₆ gas leaked through the flange, and improving the use effect of the device.

Claims (10)

1. A GIS intelligent detection system, comprising a sealing sleeve (1), a locking mechanism, a gas delivery device (5), SF ₆ gas detection equipment, characterized in that: the locking mechanism is located in the sealing sleeve (1) The two ends are used to connect the sealing sleeve (1) into a ring; The sealing sleeve (1) is made of breathable material; The inside of the sealing sleeve (1) is provided with an air guide ring (3), and the air guide ring (3) is provided with a groove (4) on the side close to the inner wall of the sealing sleeve (1); The gas transmission device (5) is connected to the inside of the groove (4), and the gas in the groove (4) is collected and then output; The SF ₆ gas detection equipment is connected to the outlet of the gas delivery device (5). 2. A kind of GIS intelligent detection system according to claim 1, is characterized in that: described sealing sleeve (1) two ends and the inside are all provided with connecting block (2); The connecting block (2) is clamped by the engaging mechanism; The air guiding ring (3) runs through the connecting block (2) inside the sealing sleeve (1). 3. A GIS intelligent detection system according to claim 1, characterized in that: the air guiding ring (3) is made of elastic rubber material, and the sealing sleeve (1) is made of elastic cloth. 4. A kind of GIS intelligent detection system according to claim 1, it is characterized in that: the gas delivery device (5) comprises a conduit (51) and an adapter port (52); the conduit (51) communicates with the Inside the groove (4); The adapter port (52) is sealed by a rubber plug; The adapter port (52) is used for connecting the external SF ₆ gas detection equipment. 5. A GIS intelligent detection system according to claim 3, characterized in that: an air chamber (31) is provided inside the air guide ring (3); the air chamber (31) is arc-shaped, and the opening faces One side of the inner wall of the sealing sleeve (1); The air cavity (31) is connected with an external air intake device. 6. A GIS intelligent detection system according to claim 5, characterized in that: the space of the air cavity (31) increases from the arc to the two ends of the air cavity (31). 7. A kind of GIS intelligent detection system according to claim 1, is characterized in that: described engagement mechanism comprises slide block (61) and chute (62); The slider (61) is fixedly connected to the vertical direction of the connection block (2) at one end of the sealing sleeve (1); A chute (62) is opened on the connecting block (2) at the other end of the sealing sleeve (1); The slider (61) is compatible with the slide groove (62). 8. A kind of GIS intelligent detection system according to claim 7, is characterized in that: on the described chute (62) inwall, be laid with magnetic material layer; The slider (61) is made of magnetic material; The chute (62) and the slider (61) attract each other. 9 . A GIS intelligent detection system according to claim 7 , characterized in that: a cavity ( 63 ) is opened inside the slider ( 61 ); and the cavity ( 63 ) communicates with the air cavity ( 31 ). 10. A GIS intelligent detection system according to claim 9, characterized in that: the cavity (63) is located near the inner wall of the sealing sleeve (1).

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