CN218972409U - SF6 gas filling device for GIS - Google Patents
SF6 gas filling device for GIS Download PDFInfo
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- CN218972409U CN218972409U CN202223478554.1U CN202223478554U CN218972409U CN 218972409 U CN218972409 U CN 218972409U CN 202223478554 U CN202223478554 U CN 202223478554U CN 218972409 U CN218972409 U CN 218972409U
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Abstract
The utility model discloses a GIS SF6 gas filling device, which comprises a gas cylinder, a vacuum pump and a gas chamber, wherein a pipeline A is arranged on the gas chamber, one end of the pipeline A is connected with the gas chamber, the other end of the pipeline A is connected with the vacuum pump and the gas cylinder through a pipeline B and a pipeline C respectively, an adsorbent placing pipe is arranged on the pipeline A, one end of the adsorbent placing pipe is provided with an end cover, the other end of the adsorbent placing pipe is communicated with the pipeline A, the lower part of the pipeline A extends into the gas chamber, a porous plate is arranged at the lower part of the pipeline A, and a plurality of air holes are formed at the lower part of the pipeline A. According to the utility model, after the air chamber is vacuumized by the vacuum pump, SF6 gas is added into the air chamber through the gas cylinder, so that SF6 filling operation of the air chamber is realized, after vacuumization, the baffle plate can be lifted upwards through the magnet, so that the adsorbent in the adsorbent placing pipe slides into the air chamber, the adsorbent is prevented from being brought into the air chamber, and the water content of the device is reduced.
Description
Technical Field
The utility model belongs to the field of power engineering construction, and particularly relates to a device for filling SF6 gas in a GIS.
Background
GIS is the english acronym of gas-insulated totally enclosed combined electrical apparatus, and GIS is high-voltage electrical apparatus that operational reliability is high, maintenance work load is few, maintenance cycle is long, often fills SF6 insulating gas in its air chamber in GIS to realize GIS equipment's insulativity, still need put into the adsorbent in the air chamber simultaneously, absorb the moisture in SF6 gas and because of electric arc effect produces toxic decomposition thing through the adsorbent. In the existing operation steps, the adsorbent is added into the air chamber before the air chamber is vacuumized, and because the air chamber has very strict requirements on the moisture content, part of moisture easily enters the air chamber through the adsorbent, so that a GIS SF6 gas filling device is needed, the device can be added into the air chamber after the air chamber is vacuumized, the water content of the air chamber is reduced, and the reliability of equipment is improved.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a device for filling SF6 gas by a GIS, which can solve the problem that the adsorbent in the prior art can only be added before the air chamber is vacuumized.
The utility model is realized by the following technical scheme.
The utility model provides a GIS SF6 gas filling device, which comprises a gas cylinder, a vacuum pump and a gas chamber, wherein a pipeline A is arranged on the gas chamber, one end of the pipeline A is connected with the gas chamber, the other end of the pipeline A is connected with the vacuum pump and the gas cylinder through a pipeline B and a pipeline C respectively, an adsorbent placing pipe is arranged on the pipeline A, one end of the adsorbent placing pipe is provided with an end cover, the other end of the adsorbent placing pipe is communicated with the pipeline A, the lower part of the pipeline A stretches into the gas chamber, a porous plate is arranged at the lower part of the pipeline A, and a plurality of air holes are formed at the lower part of the pipeline A.
The gas cylinder is provided with a gas valve, the gas valve is connected with a pipeline C, the pipeline C is provided with a stop valve A, and the pipeline A is provided with a stop valve D.
The vacuum pump is communicated with a pipeline B through a filter, and a stop valve B and a stop valve C are arranged on the pipeline B.
A pressure gauge is arranged between the stop valve C and the pipeline A, and a vacuum gauge is arranged between the stop valve B and the stop valve C.
The adsorbent is placed the pipe lower part and is equipped with the baffle, and the baffle both sides are installed in the adsorbent and are placed pipe lower part through the mounting groove, and the adsorbent is placed the pipe and is equipped with the reservation groove on baffle upper portion.
The upper part of the baffle is provided with a magnet, the baffle is made of aluminum, and the adsorbent placing pipe is made of stainless steel.
The outside of the adsorbent placing tube is wrapped with a heating sleeve.
The utility model has the beneficial effects that: after the air chamber is vacuumized through the vacuum pump, SF6 gas is added into the air chamber through the gas cylinder, SF6 filling operation of the air chamber is achieved, after vacuumization, the baffle plate can be lifted upwards through the magnet, the adsorbent in the adsorbent placing pipe slides into the air chamber, so that the adsorbent is prevented from bringing moisture into the air chamber, and the water content of the device is reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic structural view of the pipeline A;
in the figure: 1-gas cylinder, 2-vacuum pump, 3-air chamber, 4-pipeline A, 5-pipeline B, 6-pipeline C, 7-adsorbent placing tube, 8-end cover, 9-stop valve A, 10-filter, 11-stop valve B, 12-stop valve C, 13-pressure gauge, 14-vacuum gauge, 15-stop valve D, 16-porous plate, 17-baffle, 18-reserve tank, 19-magnet, 20-heating jacket.
Detailed Description
The technical solution of the present utility model is further described below, but the scope of the claimed utility model is not limited to the above.
As shown in fig. 1 and 2, a gas device for filling SF6 by GIS comprises a gas cylinder 1, a vacuum pump 2 and a gas chamber 3, wherein a pipeline A4 is arranged on the gas chamber 3, one end of the pipeline A4 is connected with the gas chamber 3, the other end of the pipeline A4 is respectively connected with the vacuum pump 2 and the gas cylinder 1 through a pipeline B5 and a pipeline C6, an adsorbent placing pipe 7 is arranged on the pipeline A4, an end cover 8 is arranged at one end of the adsorbent placing pipe 7, the other end of the adsorbent placing pipe 7 is communicated with the pipeline A4, the lower part of the pipeline A4 stretches into the gas chamber 3, a porous plate 16 is arranged at the lower part of the pipeline A4, and a plurality of air holes are formed in the lower part of the pipeline A4.
During operation, the vacuum pump is firstly tested to run, whether SF6 gas in the gas cylinder 1 is qualified or not, whether all pipelines are clean or not is checked, then the adsorbent is baked according to the requirement, then the adsorbent is added into the adsorbent placing pipe 7, the end cover 8 is screwed down, then the stop valve A9 is closed, the stop valve B11, the stop valve C12 and the stop valve D15 are opened, the vacuum pump 2 is opened to vacuumize the air chamber 3, after the vacuum degree specified by a product technical file is continuously pumped for 0.5 to 1 hour, the water is discharged, after the vacuumizing is completed, the stop valve B11 is closed, the vacuum leak detection is kept for more than 4 hours, if the vacuum degree change of the air chamber 3 is larger than the specification of the product technical file, the vacuumizing leak detection test is repeatedly carried out, so as to determine whether leakage and moisture release exist or not, if the vacuum degree change of the air chamber 3 is larger than the specification of the product technical file, after the vacuum degree change is all required, the strong magnet is used for adsorbing the magnet 19, the baffle 17 is pulled up, the adsorbent in the adsorbent placing pipe 7 falls onto the porous plate 16, then the stop valve C12 is closed, then the air valve A9 is opened, the air valve on the gas cylinder 1 is opened, the air chamber 6 is filled with the air chamber 6, the air chamber 6 is opened, the air chamber 6 is filled with the air 6, the pressure is read, the air is opened, the pipeline is closed, the pipeline is opened, and all the pipeline is closed, after the pipeline is closed, and the pipeline is opened, and the 4 is closed, and when the pipeline is opened and 5 is opened. During the vacuumizing process, the adsorbent is heated by the heating sleeve 20 to keep a higher temperature and less adsorbed moisture, so that the adsorbent is prevented from bringing moisture into the air chamber 3, the water content in the air chamber 3 is reduced, and the service life of equipment is prolonged.
The gas cylinder 1 is provided with a gas valve, the gas valve is connected with a pipeline C6, the pipeline C6 is provided with a stop valve A9, the pipeline A4 is provided with a stop valve D15, the stop valve A9 is used for controlling inflation, and the gas tightness of the gas chamber 3 is ensured after the pipeline A4 can be plugged by the stop valve D15.
The vacuum pump 2 is communicated with a pipeline B5 through a filter 10, and a stop valve B11 and a stop valve C12 are arranged on the pipeline B5 and used for adjusting different operation.
A pressure gauge 13 is arranged between the stop valve C12 and the pipeline A4, when SF6 is filled, a pressure value can be read through the pressure gauge 13, a vacuum gauge 14 is arranged between the stop valve B11 and the stop valve C12, and when vacuum is pumped, the vacuum degree can be read, so that whether the tightness of the air chamber 3 meets the requirement is judged.
The lower part of the adsorbent placing tube 7 is provided with a baffle 17, two sides of the baffle 17 are arranged at the lower part of the adsorbent placing tube 7 through mounting grooves, the adsorbent placing tube 7 is provided with a reserved groove 18 at the upper part of the baffle 17, and the baffle 17 can block the adsorbent, so that the adsorbent is left in the adsorbent placing tube 7.
The magnet 19 is arranged on the upper portion of the baffle 17, the baffle 17 is made of aluminum, the weight can be reduced, the adsorbent placing tube 7 is made of stainless steel, stainless steel cannot be adsorbed by the magnet 19, the magnet 19 can be interacted with the stainless steel by using an external magnet, the baffle 17 is pulled upwards through magnetic force, and the adsorbent slides into the pipeline A4 from the adsorbent placing tube 7.
The outside of the adsorbent placing tube 7 is wrapped with a heating jacket 20, when the adsorbent is in the adsorbent placing tube 7, the adsorbent placing tube 7 is heated to 110 ℃ by the heating jacket 20, and the adsorbent placing tube 7 is prevented from adsorbing moisture, so that the moisture content of the air chamber 3 is affected.
Claims (7)
1. The utility model provides a SF6 gas device is filled to GIS which characterized in that: the vacuum pump comprises a gas cylinder (1), a vacuum pump (2) and a gas chamber (3), wherein a pipeline A (4) is arranged on the gas chamber (3), one end of the pipeline A (4) is connected with the gas chamber (3), and the other end of the pipeline A (4) is connected with the vacuum pump (2) and the gas cylinder (1) through a pipeline B (5) and a pipeline C (6) respectively; an adsorbent placing pipe (7) is arranged on the pipeline A (4), one end of the adsorbent placing pipe (7) is provided with an end cover (8), and the other end of the adsorbent placing pipe (7) is communicated with the pipeline A (4); the lower part of the pipeline A (4) stretches into the air chamber (3), a porous plate (16) is arranged at the lower part of the pipeline A (4), and a plurality of air holes are formed at the lower part of the pipeline A (4).
2. A GIS SF6 gas filling apparatus according to claim 1, wherein: the gas cylinder (1) is provided with a gas valve, the gas valve is connected with the pipeline C (6), the pipeline C (6) is provided with a stop valve A (9), and the pipeline A (4) is provided with a stop valve D (15).
3. A GIS SF6 gas filling apparatus according to claim 1, wherein: the vacuum pump (2) is communicated with the pipeline B (5) through the filter (10), and the pipeline B (5) is provided with the stop valve B (11) and the stop valve C (12).
4. A GIS SF6 gas filling apparatus according to claim 3, wherein: a pressure gauge (13) is arranged between the stop valve C (12) and the pipeline A (4), and a vacuum gauge (14) is arranged between the stop valve B (11) and the stop valve C (12).
5. A GIS SF6 gas filling apparatus according to claim 1, wherein: the lower part of the adsorbent placing pipe (7) is provided with a baffle plate (17), two sides of the baffle plate (17) are arranged at the lower part of the adsorbent placing pipe (7) through mounting grooves, and the adsorbent placing pipe (7) is provided with a reserved groove (18) at the upper part of the baffle plate (17).
6. A GIS SF6 gas filling apparatus according to claim 5, wherein: the upper part of the baffle plate (17) is provided with a magnet (19), the baffle plate (17) is made of aluminum, and the adsorbent placing tube (7) is made of stainless steel.
7. A GIS SF6 gas filling apparatus according to claim 1, wherein: the outside of the adsorbent placing tube (7) is wrapped with a heating sleeve (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223478554.1U CN218972409U (en) | 2022-12-26 | 2022-12-26 | SF6 gas filling device for GIS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223478554.1U CN218972409U (en) | 2022-12-26 | 2022-12-26 | SF6 gas filling device for GIS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218972409U true CN218972409U (en) | 2023-05-05 |
Family
ID=86149251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223478554.1U Active CN218972409U (en) | 2022-12-26 | 2022-12-26 | SF6 gas filling device for GIS |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218972409U (en) |
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2022
- 2022-12-26 CN CN202223478554.1U patent/CN218972409U/en active Active
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