CN219201847U - Special tool for checking SF6 gas density relay signal - Google Patents
Special tool for checking SF6 gas density relay signal Download PDFInfo
- Publication number
- CN219201847U CN219201847U CN202223073522.3U CN202223073522U CN219201847U CN 219201847 U CN219201847 U CN 219201847U CN 202223073522 U CN202223073522 U CN 202223073522U CN 219201847 U CN219201847 U CN 219201847U
- Authority
- CN
- China
- Prior art keywords
- gas
- stop valve
- valve
- special tool
- inflation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The utility model relates to a SF (sulfur hexafluoride) target device 6 The special tool for checking the gas density relay signal comprises a gas charging and discharging connector, a pipeline adapter, a first stop valve, a polytetrafluoroethylene tube, a pressure gauge, a three-way valve, a second stop valve and a gas cylinder; one end of the inflation and deflation joint is connected with one end of the first stop valve through a pipeline adapter, and the other end of the inflation and deflation joint is connected with an inflation and deflation valve port of equipment to be detected so as to take SF discharged in the inflation and deflation joint 6 The other end of the first stop valve is connected with the gas through the polytetrafluoroethyleneThe alkene pipe is connected with manometer one end, and the manometer other end is connected with three-way valve one end, and three-way valve other both ends are connected with the one end of gas cylinder and second stop valve respectively, and the other end of second stop valve is connected with the pipeline of transferring the gas cylinder. The maintenance personnel can execute maintenance tasks by adopting the special tool, the adverse problems that the pressure is reduced by manually knocking the thimble of the air charging and discharging valve to check the alarm action value and the locking action value signal method are avoided, and the special tool is convenient to carry, safe and practical, simple to operate, environment-friendly and economical.
Description
Technical Field
The utility model relates to the field of power detection tools, in particular to a SF (sulfur hexafluoride) detection tool 6 A special tool for checking gas density relay signals.
Background
Electric inflating equipment air chamber with SF 6 The gas density relay is used for reflecting the pressure in the gas chamber and protecting equipment such as a breaker gas chamber SF 6 The gas density relay is generally provided with two alarm nodes and two locking nodes, and is used for protecting the gas chamber of the circuit breaker from switching on and off operation when the pressure of the gas chamber is low, so that the gas chamber is prevented from being polluted by arc discharge, and the insulation performance in the gas chamber is reduced when the pressure of the gas chamber is low, so that the equipment is abnormally discharged. Currently, the power industry inflatesSF must be developed during equipment overhaul 6 In the gas density relay signal inspection project, the thimble of the charging and discharging valve is knocked by a person to achieve pressure drop, so that the alarm action value and the locking action value signals are checked; firstly, the strength cannot be mastered when the pressure is tapped, and the pressure value of the meter can cross all nodes to zero, so that the signal is difficult to accurately check; secondly, the SF is caused by excessive force or multiple strokes during the knocking 6 The sealing of the gas pipeline is damaged, so that the equipment leaks gas; thirdly, SF discharged by knocking 6 The gas is directly discharged into the atmosphere, which causes pollution to the air to a certain extent, and SF 6 The gas price is not cheap, and the direct discharge in the air is uneconomical.
Disclosure of Invention
The utility model aims at SF 6 The corresponding problems existing in the manual mode of the gas density relay signal inspection are solved, and the method aims at SF 6 Special tool for checking gas density relay signal, and maintainer smoothly completes SF through the tool 6 Gas density relay signal checking task, avoiding check signal difficulty caused by gauge pressure value crossing all nodes to zero, SF caused by knocking 6 Equipment leakage and SF (sulfur hexafluoride) caused by damaged sealing of gas pipeline 6 And the pollution caused by directly discharging the gas into the atmosphere.
The utility model adopts the technical scheme that:
SF (sulfur hexafluoride) specific 6 The special tool for checking the gas density relay signal comprises a gas charging and discharging connector, a pipeline adapter, a first stop valve, a polytetrafluoroethylene tube, a pressure gauge, a three-way valve, a second stop valve and a gas cylinder; one end of the inflation and deflation connector is connected with one end of the first stop valve through a pipeline adapter, and the other end of the inflation and deflation connector is connected with an inflation and deflation valve port of equipment to be detected so as to take SF discharged in the inflation and deflation connector 6 The gas, the first stop valve other end is connected with manometer one end through polytetrafluoroethylene pipe, the manometer other end is connected with three-way valve one end, three-way valve other both ends are connected with the one end of gas cylinder and second stop valve respectively, the other end of second stop valve is connected with the pipeline of transfer gas cylinder.
Preferably, the specification of the polytetrafluoroethylene tube is 500mm long, 2mm thick and 8mm inner diameter.
Preferably, the valve port specification of the first stop valve and the second stop valve is ∅.
Preferably, the measuring range of the pressure gauge is 0-6Mpa.
Preferably, the gas cylinder is a gas cylinder with the height of 70cm, ∅ cm, the filling amount of 3.2 m gauge/20 kg and the volume of 10L.
The implementation of the utility model has the beneficial effects that: the utility model is applied to SF 6 During the gas density relay signal checking work, the maintainer adopts the method aiming at SF 6 The special tool for checking the gas density relay signals avoids the adverse problem that the method for checking the alarm action value and the locking action value signals by manually knocking the ejector pins of the gas charging and discharging valve to reduce the pressure, and is convenient to carry, safe, practical, simple to operate, environment-friendly and economical.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1: a special tool model schematic;
in the figure: 1. the device comprises an inflation and deflation connector 2, a pipeline adapter 3, a stop valve 4, a polytetrafluoroethylene tube 5, a pressure gauge 6, a three-way valve 7, a stop valve 8 and a gas cylinder.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In one embodiment of the present utility model, please refer to fig. 1.
SF (sulfur hexafluoride) specific 6 The special tool for checking the gas density relay signal comprises a gas charging and discharging connector 1, a pipeline adapter 2, a first stop valve 3, a polytetrafluoroethylene tube 4, a pressure gauge 5, a three-way valve 6, a second stop valve 7 and a gas cylinder 8; one end of the inflation and deflation joint 1 is connected with one end of the first stop valve 3 through the pipeline adapter 2, and the other end of the inflation and deflation joint 1 is connected with an inflation and deflation valve port of equipment to be detected so as to adopt SF discharged in the inflation and deflation valve port 6 The gas, the first stop valve 3 other end is connected with manometer 5 one end through polytetrafluoroethylene pipe 4, manometer 5 other end is connected with three-way valve 6 one end, three-way valve 6 other both ends are connected with the one end of gas cylinder 8 and second stop valve 7 respectively, the other end of second stop valve 7 is connected with the pipeline of transferring gas cylinder to retrieve the SF of transferring gas cylinder 8 6 And (3) gas.
Specifically, a polytetrafluoroethylene tube 4 with the length of 500mm, the wall thickness of 2mm and the inner diameter of 8mm is adopted, a first stop valve 3 of ∅ is connected to a position 50mm away from the tail end of one end of the polytetrafluoroethylene tube 4, a universal pipeline adapter 2 is installed at the tail end of the first stop valve 3, the pipeline adapter 2 is connected with an inflation and deflation joint 1, a pressure gauge 5 with the measuring range of 0-6Mpa is installed at the other end of the polytetrafluoroethylene tube 4, a three-way valve 6 is installed behind the pressure gauge 5, one valve port of the three-way valve 6 is connected with a gas cylinder 8 with the height of 70cm, ∅ cm, the filling amount (3.2 m g/20 kg) and the volume of 10L, and the other valve port of the three-way valve 6 is connected with a second stop valve 7 of ∅ 10.
The utility model aims at SF 6 The using method of the special tool for checking the gas density relay signal comprises the following steps: when an maintainer uses the special tool for the first time, the parts are assembled firstly, an air charging and discharging connector 1 with the same type as an air charging and discharging valve of equipment is arranged on a pipeline adapter 2, a three-way valve 6 on an air bottle 8 is opened, a first stop valve 3 and a second stop valve 7 at two ends are closed, the air charging and discharging connector 1 is screwed on the air charging and discharging valve of the equipment, and SF is discharged through the first stop valve 3 in a control mode 6 The flow of gas ensures that the pressure gauge 5 shows a pressure lower than the device SF 6 Pressure of gas density relay, discharge SF 6 Gas shieldThe gas bottle 8 is convenient to be used later, and SF is avoided 6 The gas is directly discharged to the atmosphere.
After each time of use, the maintainer should transfer the gas in the gas cylinder 8 to a proper gas cylinder, so that the special tool is convenient to overhaul and use next time; in the process of transferring gas, the second stop valve 7 is connected to the gas cylinder or pipeline to be transferred, the first stop valve 3 is checked to be closed, the three-way valve 6 on the gas cylinder 8 is opened, the pressure gauge 5 is ensured to display that the pressure is higher than the pressure of the transferred gas cylinder, and then the gas cylinder 8 flows into the transferred gas cylinder.
The utility model is used for filling SF 6 Maintenance task of gas power equipment, and maintenance personnel performing SF (sulfur hexafluoride) 6 When the gas density relay signal inspection project is adopted, the adverse problem that the method for checking the alarm action value and the locking action value signal by manually knocking the thimble of the gas charging and discharging valve to reduce the pressure is avoided, and the special tool is convenient to carry, safe, practical, simple to operate, environment-friendly and economical.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (5)
1. SF (sulfur hexafluoride) specific 6 The special tool for checking the gas density relay signal is characterized by comprising a gas charging and discharging connector, a pipeline adapter, a first stop valve, a polytetrafluoroethylene tube, a pressure gauge, a three-way valve, a second stop valve and a gas cylinder; one end of the inflation and deflation connector is connected with one end of the first stop valve through a pipeline adapter, and the other end of the inflation and deflation connector is connected with an inflation and deflation valve port of equipment to be detected so as to take SF discharged in the inflation and deflation connector 6 The gas, the first stop valve other end is connected with manometer one end through polytetrafluoroethylene pipe, the manometer other end is connected with three-way valve one end, three-way valve other both ends are connected with the one end of gas cylinder and second stop valve respectively, the other end of second stop valve is connected with the pipeline of transfer gas cylinder.
2. A specific SF according to claim 1 6 The special tool for checking the gas density relay signal is characterized in that the specification of the polytetrafluoroethylene tube is 500mm long, 2mm thick and 8mm inner diameter.
3. A specific SF according to claim 1 6 The special tool for checking the gas density relay signal is characterized in that the valve port specification of the first stop valve and the second stop valve is ∅.
4. A specific SF according to claim 1 6 The special tool for checking the gas density relay signal is characterized in that the measuring range of the pressure gauge is 0-6Mpa.
5. A specific SF according to claim 1 6 The special tool for checking the gas density relay signal is characterized in that the gas cylinder is a gas cylinder with the height of 70cm and ∅ cm, the filling amount of 3.2 m and the filling amount of 20kg and the volume of 10L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223073522.3U CN219201847U (en) | 2022-11-21 | 2022-11-21 | Special tool for checking SF6 gas density relay signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223073522.3U CN219201847U (en) | 2022-11-21 | 2022-11-21 | Special tool for checking SF6 gas density relay signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219201847U true CN219201847U (en) | 2023-06-16 |
Family
ID=86704945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223073522.3U Active CN219201847U (en) | 2022-11-21 | 2022-11-21 | Special tool for checking SF6 gas density relay signal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219201847U (en) |
-
2022
- 2022-11-21 CN CN202223073522.3U patent/CN219201847U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103486440B (en) | Connecting device, vacuum pumping method and inflation method are reclaimed in rapid vacuumizing and inflation | |
| CN201706192U (en) | Multifunctional SF6 gas charging joint device | |
| CN204988657U (en) | Heat -exchanger leak detection apparatus | |
| CN104132786A (en) | Rapid leakage detecting method suitable for extra-high voltage converter transformers | |
| CN105547612A (en) | Transformer leakage testing device | |
| CN219201847U (en) | Special tool for checking SF6 gas density relay signal | |
| CN216081936U (en) | Waterproof test air pressure detection device | |
| CN204647603U (en) | 66kV sulfur hexafluoride breaker test universal joint | |
| CN105811280B (en) | A kind of GIS device gas leaks powered pressurized leaking stoppage method | |
| CN108105524B (en) | Inflatable pipeline plugging tool with pressure relief structure | |
| CN202852414U (en) | Check type SF6 (Sulfur Hexafluoride) inflating device with non-return function | |
| CN201021913Y (en) | Pipe or container leakage checking device | |
| CN109883685B (en) | Detection device of electromagnetic valve and use method | |
| CN205504258U (en) | Experimental universal adapter of 220kV SF 6 circuit breaker | |
| CN214844614U (en) | Inflatable dismounting-free verification sulfur hexafluoride density relay | |
| CN211602391U (en) | On-spot calibration equipment of boiler furnace pressure switch | |
| CN219655839U (en) | General sulfur hexafluoride gas inflation connection tool and inflation device | |
| CN202083528U (en) | High-voltage breaker high-voltage air seepage detection apparatus | |
| CN204756426U (en) | Full -automatic type SF6 electrical equipment aerating device | |
| CN113820082A (en) | Waterproof test air pressure detection device | |
| CN203488985U (en) | Quick vacuum pumping and aerifying recovery connection device | |
| CN218600791U (en) | Fire-fighting pipeline detection device | |
| CN218411561U (en) | Pipeline leakage detection device | |
| CN221199270U (en) | Pipeline pressure testing machine | |
| CN213629355U (en) | Heat exchanger leak hunting gas fills annotates and annotates structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |