CN115854264A - SF 6 Inflation recovery metering device - Google Patents
SF 6 Inflation recovery metering device Download PDFInfo
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- CN115854264A CN115854264A CN202211627133.2A CN202211627133A CN115854264A CN 115854264 A CN115854264 A CN 115854264A CN 202211627133 A CN202211627133 A CN 202211627133A CN 115854264 A CN115854264 A CN 115854264A
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- Prior art keywords
- recovery
- inflation
- port
- branch pipe
- electromagnetic valve
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- 238000011084 recovery Methods 0.000 title claims abstract description 118
- 238000004064 recycling Methods 0.000 claims description 4
- 238000005070 sampling Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 60
- 230000001502 supplementing effect Effects 0.000 description 9
- 229910018503 SF6 Inorganic materials 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 4
- 229960000909 sulfur hexafluoride Drugs 0.000 description 4
- 239000013589 supplement Substances 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
SF 6 The inflation recovery metering device comprises an inflation/recovery main pipe, a first recovery branch pipe and a second recovery branch pipe; one end of the main inflation/recovery pipe is an inflation port/recovery port, the other end of the main inflation/recovery pipe is an equipment connecting port, and the main inflation/recovery pipe is provided with a first electromagnetic valve, a mass flow meter, a third electromagnetic valve and a digital display pressure gauge; one end of the first recovery branch pipe is also communicated with an air inlet of the mass flowmeter, the other end of the first recovery branch pipe is also communicated with an equipment connector, and a second electromagnetic valve is connected to the first recovery branch pipe in series; one end of the second recovery branch pipe is also communicated with the air outlet of the mass flow meter, the other end of the second recovery branch pipe is also communicated with the inflating port/recovery port, and a fourth electromagnetic valve is connected in series on the second recovery branch pipe. The invention can realize SF 6 Gas recovery metering and charge metering.
Description
Technical Field
The invention belongs to the technical field of power equipment maintenance, and relates to SF 6 Inflation recovery metering device.
Background
SF 6 The gas is six main greenhouse gases which are strictly forbidden to be discharged, and is widely applied to the electric power industry for electrical insulation of equipment. SF filled in electrical equipment 6 Gases, requiring SF recovery after decommissioning of electrical equipment or after disassembly of the equipment 6 A gas. At present, the state requires the power grid company to count the recovery rate, and the SF is recorded and recovered in the recovery process 6 Gas weight and calculating the recovery of the equipment; newly commissioned electrical equipment needs to be filled with SF 6 Gas capable of recording each fill of SF 6 The weight of the gas. The invention can not only finish SF 6 The recovery metering and the recovery rate measurement of the gas can be completed, and the gas supplement metering can be completed.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides SF 6 An inflation recovery metering device can realize SF 6 Gas recovery metering and charge metering.
In order to solve the technical problem, the invention adopts the following technical scheme that SF 6 The inflation recovery metering device comprises an inflation/recovery main pipe, a first recovery branch pipe, a second recovery branch pipe and a digital display pressure gauge;
one end of the main inflation/recovery pipe is an inflation port/recovery port, the other end of the main inflation/recovery pipe is an equipment connecting port, and a first electromagnetic valve, a mass flow meter, a third electromagnetic valve and a digital display pressure gauge are sequentially arranged on the main inflation/recovery pipe from the inflation port/recovery port to the equipment connecting port;
one end of the first recovery branch pipe is also communicated with an air inlet of the mass flowmeter, the other end of the first recovery branch pipe is also communicated with an equipment connector, and a second electromagnetic valve is connected in series on the first recovery branch pipe;
one end of the second recovery branch pipe is also communicated with the air outlet of the mass flow meter, the other end of the second recovery branch pipe is also communicated with the inflation inlet/recovery inlet, and a fourth electromagnetic valve is connected in series on the second recovery branch pipe.
Further, the inflation/recovery port is connected with an inflation/recovery interface or joint.
Further, the equipment connecting port is connected with the equipment connecting joint.
Furthermore, the digital display pressure gauge is close to the equipment connector or the digital display pressure gauge is arranged at the sampling port of the air chamber.
Furthermore, the digital display pressure gauge adopts a high-precision digital display pressure gauge.
And (5) supplementing air and metering. Charging deviceGas port/recovery port connection SF 6 Opening the first solenoid valve and the third solenoid valve, closing the second solenoid valve and the fourth solenoid valve, and SF 6 Gas is filled into the electrical equipment through the first electromagnetic valve, the mass flow meter, the third electromagnetic valve, the high-precision digital display pressure gauge and the equipment connector, and the mass flow meter can meter the flowing SF 6 The weight of the gas. The high-precision digital display pressure gauge can detect the inflation pressure, when the inflation pressure reaches a target pressure value, the first electromagnetic valve is closed, the automatic inflation is completed, and the SF inflated in the air chamber is recorded 6 The weight of the gas.
In the gas filling and supplementing process, the mass flow meter can more accurately acquire gas mass flow data (gas flow under standard conditions), and then the gas mass in the gas filling and supplementing process is calculated according to the gas density and the gas filling and supplementing time, so that the gas weight of each gas filling and supplementing operation is acquired. Thereby realizing the metering and the accumulation of the usage amount of the sulfur hexafluoride gas on site.
And (4) measuring the recovery and measuring the recovery rate. Inflation inlet/recovery inlet connection SF 6 The recovery device closes the first electromagnetic valve and the third electromagnetic valve, opens the second electromagnetic valve and the fourth electromagnetic valve, and connects an equipment connector with SF 6 The gas chamber to be recovered of the electrical equipment, a high-precision digital display pressure gauge for recording the initial recovery pressure and starting SF 6 Recovery device, recovered SF 6 Gas is recovered through the second electromagnetic valve, the mass flow meter and the fourth electromagnetic valve, and the mass flow meter records the recovered SF in the recovery process 6 And (4) recording the recovery termination pressure by a high-precision digital pressure gauge after the gas weight stops recovering. The recovery calculation was done based on the starting and ending pressures.
Based on the law of dalton partial pressure and the law of conservation of energy,% recovery =100 × (initial pressure-end pressure)/initial pressure, and the initial pressure and end pressure recovered can be obtained by digital pressure gauges.
Along with the same principle of gas supplement, in the recovery process, the mass flowmeter can more accurately obtain gas mass flow data (gas flow under standard conditions), and then the gas mass in the gas recovery process is calculated according to the gas density and the recovery time, so that the gas weight of each recovery operation is obtained. Thereby realizing the measurement and the accumulation of the recovery amount of the sulfur hexafluoride gas on site.
The invention can not only finish SF 6 The recovery metering and the recovery rate measurement of the gas can be completed, and the gas supplement metering can be completed.
Drawings
Fig. 1 is a schematic structural view of the present invention.
In fig. 1, an inflation/recovery main pipe 1, a first recovery branch pipe 2, a second recovery branch pipe 3, an inflation port/recovery port 4, an equipment connection port 5, a mass flowmeter 6 and a digital display pressure gauge 7.
Detailed Description
As shown in FIG. 1, SF 6 The inflation recovery metering device comprises an inflation/recovery main pipe 1, a first recovery branch pipe 2, a second recovery branch pipe 3 and a digital display pressure gauge 7;
one end of the main inflation/recovery pipe 1 is an inflation port/recovery port 4, the other end of the main inflation/recovery pipe is an equipment connecting port 5, and a first electromagnetic valve V1, a mass flow meter 6 and a third electromagnetic valve V3 are sequentially arranged on the main inflation/recovery pipe 1 from the inflation port/recovery port 4 to the equipment connecting port 5;
the digital display pressure gauge 7 is arranged on the main inflating/recycling pipe 1 between the third electromagnetic valve V3 and the equipment connecting port 5, or the digital display pressure gauge 7 is arranged at a sampling port of the air chamber;
one end of the first recovery branch pipe 2 is also communicated with an air inlet of the mass flowmeter 6, the other end of the first recovery branch pipe 2 is also communicated with the equipment connector 5, and the first recovery branch pipe 2 is connected with a second electromagnetic valve V2 in series;
one end of the second recovery branch pipe 3 is also communicated with the air outlet of the mass flow meter 6, the other end of the second recovery branch pipe 3 is also communicated with the inflation inlet/recovery inlet 4, and the fourth electromagnetic valve V4 is connected on the second recovery branch pipe 3 in series.
Further, the inflation/recovery port 4 is connected to an inflation/recovery port or joint.
Further, the device connecting port 5 is connected to the device connecting terminal.
Further, a digital display pressure gauge 7 is close to the equipment connecting port 5.
Further, the digital display pressure gauge 7 adopts a high-precision digital display pressure gauge.
And (5) supplementing air and metering. Inflation inlet/recovery inlet 4 connection SF 6 The gas steel cylinder or the gas storage tank or the gas charging device opens the first electromagnetic valve V1 and the third electromagnetic valve V3 and closes the second electromagnetic valve V2 and the fourth electromagnetic valve V4, SF 6 The gas is filled into the electrical equipment through the first electromagnetic valve V1, the mass flow meter 6, the third electromagnetic valve V3, the high-precision digital display pressure meter and the equipment connector 5, and the mass flow meter 6 can meter the SF flowing through 6 The weight of the gas. The high-precision digital display pressure gauge can detect the inflation pressure, when the inflation pressure reaches a target pressure value, the first electromagnetic valve V1 is closed, the automatic inflation is completed, and the SF inflated in the air chamber is recorded 6 The weight of the gas.
In the gas charging and supplementing process, the mass flow meter 6 can more accurately acquire gas mass flow data (gas flow under standard conditions), and then the gas mass in the gas charging and supplementing process is calculated according to the gas density and the gas charging and supplementing time, so that the gas weight of each operation is acquired. Thereby realizing the metering and the accumulation of the usage amount of the sulfur hexafluoride gas on site.
And (4) measuring the recovery and measuring the recovery rate. Inflation inlet/recovery inlet 4 connection SF 6 The recovery device closes the first electromagnetic valve V1 and the third electromagnetic valve V3, opens the second electromagnetic valve V2 and the fourth electromagnetic valve V4, and connects the equipment connecting port 5 with SF 6 The electrical equipment waits to retrieve the air chamber, and high accuracy digital display manometer record retrieves initial pressure, starts SF 6 Recovery device, recovered SF 6 Gas is recovered through a second electromagnetic valve V2, a mass flow meter 6 and a fourth electromagnetic valve V4, and the mass flow meter 6 records the recovered SF in the recovery process 6 And (4) recording the recovery termination pressure by a high-precision digital pressure gauge after the gas weight stops recovering. The recovery calculation was done based on the starting and ending pressures.
Based on the law of dalton partial pressure and the law of conservation of energy,% recovery =100 × (initial pressure-end pressure)/initial pressure, and the initial pressure and end pressure of recovery can be obtained by a digital pressure gauge 7.
Along with the same principle of gas supplement, in the recovery process, the mass flow meter 6 can more accurately acquire gas mass flow data (gas flow under standard conditions), and then the gas mass in the gas recovery process is calculated according to the gas density and the recovery time, so as to acquire the gas weight of each recovery operation. Thereby realizing the measurement and the accumulation of the recovery amount of the sulfur hexafluoride gas on site.
The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
Claims (5)
1.SF 6 Aerify and retrieve metering device, retrieve branch pipe (3), digital display manometer (7) and mass flow meter (6), its characterized in that including aerifing/retrieving person in charge (1), first recovery branch pipe (2), second:
one end of the main inflation/recovery pipe (1) is provided with an inflation port/recovery port (4), the other end of the main inflation/recovery pipe is provided with an equipment connecting port (5), and the main inflation/recovery pipe (1) is sequentially provided with a first electromagnetic valve (V1), a mass flow meter (6) and a third electromagnetic valve (V3) from the inflation port/recovery port (4) to the equipment connecting port (5);
the digital display pressure gauge (7) is arranged on the main inflating/recycling pipe (1) between the third electromagnetic valve (V3) and the equipment connecting port (5), or the digital display pressure gauge (7) is arranged at a sampling port of the air chamber;
one end of the first recovery branch pipe (2) is also communicated with an air inlet of the mass flow meter (6), the other end of the first recovery branch pipe (2) is also communicated with an equipment connector (5), and a second electromagnetic valve (V2) is connected to the first recovery branch pipe (2) in series;
one end of the second recovery branch pipe (3) is also communicated with the air outlet of the mass flow meter (6), the other end of the second recovery branch pipe (3) is also communicated with the inflating port/recovery port (4), and the second recovery branch pipe (3) is connected with a fourth electromagnetic valve (V4) in series.
2. SF according to claim 1 6 The inflation recovery metering device is characterized in that the inflation inlet/recovery port (4) is connected with an inflation/recovery interface orAnd (4) a joint.
3. SF according to claim 1 6 The inflation recycling metering device is characterized in that an equipment connecting port (5) is connected with an equipment connecting joint.
4. SF according to claim 3 6 The inflation recovery metering device is characterized in that a digital display pressure gauge (7) is close to the equipment connecting port (5).
5. SF according to claim 3 6 The inflation recycling metering device is characterized in that the digital display pressure gauge (7) adopts a high-precision digital display pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211627133.2A CN115854264A (en) | 2022-12-17 | 2022-12-17 | SF 6 Inflation recovery metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211627133.2A CN115854264A (en) | 2022-12-17 | 2022-12-17 | SF 6 Inflation recovery metering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115854264A true CN115854264A (en) | 2023-03-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211627133.2A Pending CN115854264A (en) | 2022-12-17 | 2022-12-17 | SF 6 Inflation recovery metering device |
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| Country | Link |
|---|---|
| CN (1) | CN115854264A (en) |
Citations (7)
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|---|---|---|---|---|
| KR20120039771A (en) * | 2010-08-26 | 2012-04-26 | 한국전력공사 | System for recovering or supplying gas having sf6 gas meter |
| US8915145B1 (en) * | 2013-07-30 | 2014-12-23 | Fred G. Van Orsdol | Multiphase mass flow metering system and method using density and volumetric flow rate determination |
| CN207990194U (en) * | 2018-01-31 | 2018-10-19 | 珠海经济特区恒迪科技有限公司 | A kind of SF6 gas inflators of band recycling function |
| CN109764237A (en) * | 2018-12-19 | 2019-05-17 | 河南平高电气股份有限公司 | A kind of gas recycling air charging system |
| CN215112009U (en) * | 2020-12-14 | 2021-12-10 | 河南平高电气股份有限公司 | On-line detection device and gas recovery system using same |
| CN215114676U (en) * | 2021-07-01 | 2021-12-10 | 国网安徽省电力有限公司电力科学研究院 | SF (sulfur hexafluoride)6Gas distribution and recovery device for gas chamber |
| CN114440133A (en) * | 2021-12-17 | 2022-05-06 | 河南平高电气股份有限公司 | For SF6Monitoring module of inflation and deflation recovery device and flow meter deviation rectifying method |
-
2022
- 2022-12-17 CN CN202211627133.2A patent/CN115854264A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120039771A (en) * | 2010-08-26 | 2012-04-26 | 한국전력공사 | System for recovering or supplying gas having sf6 gas meter |
| US8915145B1 (en) * | 2013-07-30 | 2014-12-23 | Fred G. Van Orsdol | Multiphase mass flow metering system and method using density and volumetric flow rate determination |
| CN207990194U (en) * | 2018-01-31 | 2018-10-19 | 珠海经济特区恒迪科技有限公司 | A kind of SF6 gas inflators of band recycling function |
| CN109764237A (en) * | 2018-12-19 | 2019-05-17 | 河南平高电气股份有限公司 | A kind of gas recycling air charging system |
| CN215112009U (en) * | 2020-12-14 | 2021-12-10 | 河南平高电气股份有限公司 | On-line detection device and gas recovery system using same |
| CN215114676U (en) * | 2021-07-01 | 2021-12-10 | 国网安徽省电力有限公司电力科学研究院 | SF (sulfur hexafluoride)6Gas distribution and recovery device for gas chamber |
| CN114440133A (en) * | 2021-12-17 | 2022-05-06 | 河南平高电气股份有限公司 | For SF6Monitoring module of inflation and deflation recovery device and flow meter deviation rectifying method |
Non-Patent Citations (1)
| Title |
|---|
| 张建飞;王玉春;刘朋亮;孟凡青;: "SF_6气体回收装置常见问题分析与处理", 电气时代, no. 07, 10 July 2017 (2017-07-10) * |
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