CN203533209U - Mixed gas filling device - Google Patents
Mixed gas filling device Download PDFInfo
- Publication number
- CN203533209U CN203533209U CN201320615810.9U CN201320615810U CN203533209U CN 203533209 U CN203533209 U CN 203533209U CN 201320615810 U CN201320615810 U CN 201320615810U CN 203533209 U CN203533209 U CN 203533209U
- Authority
- CN
- China
- Prior art keywords
- gas
- inflation
- pressure
- branch road
- mixed gas
- 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.)
- Expired - Lifetime
Links
Images
Abstract
The utility model discloses a mixed gas filling device. The mixed gas filling device comprises at least two gas filling branches which are provided with gas inlet ends and gas outlet ends. A pressure regulating unit and a gas filling unit are sequentially arranged on each gas filling branch from the gas inlet end to gas outlet end. Each gas filling unit comprises a first throttling valve and a gas flow meter, wherein the first throttling valve and the gas flow meter are sequentially arranged in series, the gas flow meter is connected to the gas outlet end of the corresponding gas filling branch, and a standby gas source and a standby control throttling valve which is for controlling on-off of the standby gas source are arranged on the gas inlet end of each gas filling branch. The mixed gas filling device comprises the at least two gas filling branches which are provided with the gas inlet ends and the gas outlet ends, the mode of multi-branch parallel gas filling is adopted, and therefore a large amount of mixed gas can be filled into at one time; the throttling valves and the gas flow meters are combined to control gas filling flow, and gas filling proportions of multiple kinds of gas can be accurately controlled; the mixed gas filling device is easy to implement, labor intensity of workers is relieved, a pipeline is simple, and the gas filling system can be merged into a high-voltage electric equipment commonly-used gas recycling system.
Description
Technical field
The utility model belongs to high voltage electric equipment with mixed gas inflator field, relates to a kind of high voltage electric equipment mixed gas inflator.
Background technique
Insulation, the arc-extinguishing medium of sulfur hexafluoride gas a kind of tool development prospect because its good insulation characterisitic has become, be widely used in equipment for power transmission and distribution field, as circuit breaker (GCB), combined electrical apparatus (GIS), transformer (GIT), cable (GIC) etc., but sulfur hexafluoride gas also has deficiency as a kind of insulating medium, as more responsive to electric field uniformity coefficient, only evenly or slightly in non-uniform electric field, just can demonstrate its advantage, under arcing, arbitrary decomposition goes out toxic gas, condensing temperature is higher, in (3～4) * 10
5more easily liquefaction under Pa; Its price comparison is high, has so just limited its application.Therefore,, along with scientific and technical development, high voltage electric equipment insulation protection gas, starts by simple sulfur hexafluoride gas, to sulphur hexafluoride, mixes excessively with other gases.
When using mixed gas to insulate, in mixed gas, the ratio of each gas is also to need strict control.In practical engineering application, to controlling various gas inflated ratios, generally adopt series connection airing form, namely when to chamber inflated, first be filled with a kind of gas, observe its inflation pressure, after the pressure that reaches regulation until it, be filled with again another gas, to guarantee the in perspective of gas.But there is certain deficiency in this kind of method: (1) first, at reply large space, while having the air chamber of pressure requirement, seem unable to do what one wishes, as when giving certain type pot type switch inflation, just need continuous charge a few hours, and need near workman's tracing and monitoring inflation pressure gas cylinder always at whole gas replenishment process; (2) secondly, at high voltage electric equipment, in low pressure alarming state, while needing secondary air compensating, this kind of series connection airing form is difficult to, according to the air chamber internal pressure of pressure gauge demonstration, air chamber is carried out to secondary air compensating.
China Patent No. CN92107330.5 discloses a kind of mixed gas collocation method and device, this device has solved the problem of multiple gases mixed proportion in principle, but its mixing principle is to mix by cylinder, and the volume of cylinder can not be too large, so be not suitable for the disposable occasion that is filled with a large amount of mixed gass, can not adjust the inflation ratio of various gases simultaneously in real time in gas replenishment process.
China Patent No. 201210109352.1 discloses a kind of method and apparatus mixing to scale for multiple gases, this device is by adopt same model, the consistent solenoid valve of latus rectum flow, the control of how many realizations by controlling different solenoid valve open-interval length or opening times to multiple gases mixing match.This inflator needs strict monitoring inflationtime, needs a plurality of solenoid valves to control simultaneously, controls comparatively complicated.
Model utility content
The purpose of this utility model is to provide a kind of mixed gas inflator, can not disposable a large amount of Mixing and aerations and in gas replenishment process, adjust in real time the problem of the inflation ratio of various gases to solve existing mixed gas inflator.
In order to realize above object, the technological scheme that the utility model adopts is: a kind of mixed gas inflator, comprise at least two inflation branch roads with inlet end and outlet side, on each inflation branch road, from entrance point to outlet end, be provided with successively pressure regulation unit and inflation unit, each outlet side of inflating branch road with for being connected the inflation main pipe rail of air chamber, be communicated with, described inflation unit comprises the first throttle valve that string is established successively and is connected to the gas flowmeter of inflation branch road outlet side, and the inlet end of respectively inflating branch road is also provided with a bailout gas and for controlling the standby control throttle valve of bailout gas break-make.
Described pressure regulation unit comprises the second throttle valve, pressure regulator valve and the pressure regulating solenoid valve that string is established successively, and described the second throttle valve is located at respectively inflates branch road inlet end for being communicated with source of the gas; Described pressure regulating solenoid valve is controlled and is connected with a controller.
Described two inflation branch roads are respectively sulfur hexafluoride gas-filled branch road and nitrogen inflation branch road.
Inflation branch road between described first throttle valve and pressure regulator valve is provided with for observing the first pressure gauge of each branch road bleed pressure.
Inflation branch road between described pressure regulator valve and inflation solenoid valve is provided with for observing the second pressure gauge of inflation pressure.
Described inflation main pipe rail is provided with for observing the 3rd pressure gauge of main pipe rail gas pressure.
The Electromagnetic Control barometer of described the 3rd pressure gauge for being controlled by controller.
Described pressure regulating solenoid valve is two-position two-way solenoid valve.
Mixed gas inflator of the present utility model comprises at least two inflation branch roads with inlet end and outlet side, adopts the parallel airing form of multiple branch circuit, can disposablely be filled with a large amount of mixed gass; Adopt throttle valve, the gas flowmeter control flow of aerating air that combines, can accurately control the inflation ratio of each gas; Adopt conventional control pneumatic element and controlled by controller, implement easily and reduce workman's labor intensity, and pipeline being simple, this inflator can be incorporated in the conventional gas recovery system of high voltage electric equipment.
Each barometer setting can make at whole gas replenishment process, few people or no worker monitor.
Arranging of bailout gas can realize the alternately inflation of two sources of the gas, finally realizes the uninterrupted air feed of source of the gas, meets the distinctive secondary air compensating requirement of high voltage electric equipment simultaneously.
Accompanying drawing explanation
Fig. 1 the utility model mixed gas inflator embodiment's structural drawing.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the utility model is described further.
Be illustrated in figure 1 the utility model mixed gas inflator embodiment's structural drawing, as seen from the figure, this device comprises at least two inflation branch roads with inlet end and outlet side, each inflation is provided with successively pressure regulation unit and inflation unit on branch road from entrance point to outlet end, each inflate the outlet side of branch road with for being connected the inflation main pipe rail connection of air chamber; Inflation unit comprises string is established successively first throttle valve 7 and is connected to the gas flowmeter 5 of inflation branch road outlet side, and the inlet end of respectively inflating branch road is also provided with a bailout gas 12 and for controlling the standby control throttle valve 13 of bailout gas break-make.
The pressure regulation unit of the present embodiment comprises that string is established successively the second throttle valve 9, pressure regulator valve 3 and pressure regulating solenoid valve 4, the second throttle valve 9 are located at and respectively inflates branch road inlet end for being communicated with source of the gas; Pressure regulating solenoid valve 4 is controlled by controller.
In actual engineering application, the insulating gas that is applied in high-tension apparatus field is generally sulphur hexafluoride, now gradually to the Mixed gas insulation development of sulphur hexafluoride and nitrogen, so two inflation branch roads are respectively sulfur hexafluoride gas-filled branch road and nitrogen inflation branch road in the present embodiment.
The pressure regulating solenoid valve 4 of the present embodiment is selected two-position two-way solenoid valve, and two-position two-way solenoid valve and pressure regulator valve 3 are all normally offs.
In order to observe each stage gas pressure, in the present embodiment, on the inflation branch road between the second throttle valve 9 and pressure regulator valve 3, be provided with for observing the first pressure gauge 2 of each branch road bleed pressure, it is for monitoring the gas pressure of source of the gas (steel cylinder), when air pressure is too low, generally be set as 1MPa, source of the gas (steel cylinder) is changed in the prompting of barometer automatic alarm; Inflation branch road between pressure regulator valve 3 and pressure regulating solenoid valve 4 is provided with for observing the second pressure gauge 8 of inflation pressure, for monitoring modulating valve output gas pressure.Barometer 8 output pressures of many branch roads must be consistent simultaneously, and setting pressure equals the inflation pressure that high pressure electrical products technical specifications require; Inflation main pipe rail is provided with for observing the 3rd pressure gauge 6 of main pipe rail gas pressure, and the Electromagnetic Control barometer of the 3rd pressure gauge for being controlled by controller.
Due to sulfur hexafluoride gas density, be not to change according to ideal-gas equation, so the inflation ratio of this gas charging system is the volume ratio of multiple gases under same equal pressure.If need to calculate the mass ratio between gas with various, also need to calculate the density of this gas gas under same equal pressure, then inflate being converted to volume.Whole gas replenishment process is controlled the mixed proportion that is filled with gas by gas flowmeter, because gas flowmeter 5 has the ability that records instantaneous flowmeter and integrated flow, so by regulating pressure regulator valve 3 and first throttle valve 7, can control delivery pressure and the flow of source of the gas, thereby control the aeration speed of gas.Ratio to be inflated is stable, be arranged on the 3rd pressure gauge 6(Electromagnetic Control barometer in total gas circuit) can reach after the force value of technical requirements in inflation, by controller, give pressure regulating solenoid valve 4 on each branch road with signal, control it and will inflate branch road and cut off, thereby complete whole gas replenishment process.
Because source of the gas is steel cylinder air feed, in traditional inflator, if find that bleed pressure is not enough, just need to manage after disconnected many branch roads simultaneously, could change source of the gas.And the utility model is also provided with a bailout gas 12 and for controlling the standby control throttle valve 13 of bailout gas break-make, can realizes two steel cylinders and replace air feed at the inlet end of each inflation branch road, avoid the interruption of source of the gas, thereby realize the uninterrupted air feed of source of the gas.
Take two inflation branch roads as example explanation the utility model working principle: after gas circuit access air chamber, article two, the pressure regulating solenoid valve 4 on inflation branch road is in off state, open source of the gas 1 and the second throttle valve 9, observe branch road the first pressure gauge 2 pressure, whether meet inflation needs, if hypotony, just need to change source of the gas 1, enable bailout gas 12 and standby control throttle valve 13.
After bleed pressure satisfies condition, open the pressure regulator valve 3 on branch road, observe the pressure of the second pressure gauge 8, its delivery pressure is set in to the inflation pressure that high pressure electrical products technical specifications require, after the pressure of all the second pressure gauges 8 on each branch road is all consistent, open inflation solenoid valve 4, the observation gas flowmeter 5 on paired observation branch road, and regulate first throttle valve 7, make its flow proportional meet inflation ratio.
Finally, after the 3rd pressure gauge 6 reaches high pressure electrical products technical specifications required pressure, by controller, feed back signal to two pressure regulating solenoid valves 4 on inflation branch road, will inflate branch road and turn-off.
If in gas replenishment process, find that bleed pressure is not enough, can open standby control throttle valve 13, access bailout gas 12, realizes the alternately inflation of two sources of the gas like this, finally realizes the uninterrupted air feed of source of the gas.
The utility model be take two kinds of gas Mixing and aerations and is described as example; also can increase as required inflation branch road; be expanded into multiple gases mixing and aeration unit, the common technology means that this is transformed to those skilled in the art, drop in protection domain of the present utility model.
Claims (8)
1. a mixed gas inflator, comprise at least two inflation branch roads with inlet end and outlet side, on each inflation branch road, from entrance point to outlet end, be provided with successively pressure regulation unit and inflation unit, each outlet side of inflating branch road with for being connected the inflation main pipe rail of air chamber, be communicated with, it is characterized in that: described inflation unit comprises string is established successively first throttle valve and be connected to the gas flowmeter of inflation branch road outlet side, and the inlet end of respectively inflating branch road is also provided with a bailout gas and for controlling the standby control throttle valve of bailout gas break-make.
2. mixed gas inflator according to claim 1, is characterized in that: described pressure regulation unit comprises the second throttle valve, pressure regulator valve and the pressure regulating solenoid valve that string is established successively, and described the second throttle valve is located at respectively inflates branch road inlet end for being communicated with source of the gas; Described pressure regulating solenoid valve is controlled and is connected with a controller.
3. mixed gas inflator according to claim 1 and 2, is characterized in that: described two inflation branch roads are respectively sulfur hexafluoride gas-filled branch road and nitrogen inflation branch road.
4. mixed gas inflator according to claim 3, is characterized in that: the inflation branch road between described first throttle valve and pressure regulator valve is provided with for observing the first pressure gauge of each branch road bleed pressure.
5. mixed gas inflator according to claim 3, is characterized in that: the inflation branch road between described pressure regulator valve and inflation solenoid valve is provided with for observing the second pressure gauge of inflation pressure.
6. mixed gas inflator according to claim 3, is characterized in that: described inflation main pipe rail is provided with for observing the 3rd pressure gauge of main pipe rail gas pressure.
7. mixed gas inflator according to claim 6, is characterized in that: the Electromagnetic Control barometer of described the 3rd pressure gauge for being controlled by controller.
8. mixed gas inflator according to claim 6, is characterized in that: described pressure regulating solenoid valve is two-position two-way solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320615810.9U CN203533209U (en) | 2013-09-30 | 2013-09-30 | Mixed gas filling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320615810.9U CN203533209U (en) | 2013-09-30 | 2013-09-30 | Mixed gas filling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203533209U true CN203533209U (en) | 2014-04-09 |
Family
ID=50419414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320615810.9U Expired - Lifetime CN203533209U (en) | 2013-09-30 | 2013-09-30 | Mixed gas filling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203533209U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132237A (en) * | 2014-08-18 | 2014-11-05 | 国家电网公司 | Low temperature mixed insulating gas supplementing device |
| CN105065910A (en) * | 2015-08-17 | 2015-11-18 | 天津市冠东科技有限公司 | Automatic pressure supplement and flow stabilization system |
| CN105351743A (en) * | 2015-09-25 | 2016-02-24 | 芜湖宏强船舶设备有限公司 | Gas filling system |
| CN109268679A (en) * | 2018-09-25 | 2019-01-25 | 中国电力科学研究院有限公司 | Weight method filling device for Mixed gas insulation high-voltage electrical equipment |
| CN112303489A (en) * | 2020-10-26 | 2021-02-02 | 广西电网有限责任公司电力科学研究院 | Constant-temperature electric heating rapid inflation method and system for novel environment-friendly insulating medium |
| CN113074898A (en) * | 2021-04-06 | 2021-07-06 | 中国空气动力研究与发展中心超高速空气动力研究所 | Premixing air supply device for shock tube and premixing air supply method thereof |
-
2013
- 2013-09-30 CN CN201320615810.9U patent/CN203533209U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132237A (en) * | 2014-08-18 | 2014-11-05 | 国家电网公司 | Low temperature mixed insulating gas supplementing device |
| CN104132237B (en) * | 2014-08-18 | 2016-03-30 | 国家电网公司 | Mix insulation gas low temperature making-up air device |
| CN105065910A (en) * | 2015-08-17 | 2015-11-18 | 天津市冠东科技有限公司 | Automatic pressure supplement and flow stabilization system |
| CN105351743A (en) * | 2015-09-25 | 2016-02-24 | 芜湖宏强船舶设备有限公司 | Gas filling system |
| CN109268679A (en) * | 2018-09-25 | 2019-01-25 | 中国电力科学研究院有限公司 | Weight method filling device for Mixed gas insulation high-voltage electrical equipment |
| CN112303489A (en) * | 2020-10-26 | 2021-02-02 | 广西电网有限责任公司电力科学研究院 | Constant-temperature electric heating rapid inflation method and system for novel environment-friendly insulating medium |
| CN113074898A (en) * | 2021-04-06 | 2021-07-06 | 中国空气动力研究与发展中心超高速空气动力研究所 | Premixing air supply device for shock tube and premixing air supply method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203533209U (en) | Mixed gas filling device | |
| CN103591452B (en) | High voltage electric equipment mist aerating device | |
| CN203525575U (en) | High-pressure mixed gas inflating device | |
| CN203533189U (en) | Mixed gas inflating device for high-voltage electric equipment | |
| CN206112505U (en) | Mixed insulating gas of sulfur hexafluoride and nitrogen gas is irritated and is filled device | |
| CN104132237B (en) | Mix insulation gas low temperature making-up air device | |
| CN106772008B (en) | Pressure-controllable SF6 gas density relay signal simulation tester | |
| CN204666753U (en) | A kind of test macro of city track traffic engineering car AuCT | |
| CN102608472A (en) | Power grid measurement and monitoring system and methods thereof | |
| CN201654191U (en) | Three-phase synchronization tester of breaker | |
| CN203405729U (en) | Testing device of rail transit brake control device | |
| CN201568739U (en) | Supply device for mine gas stable heat value | |
| CN109268679A (en) | Weight method filling device for Mixed gas insulation high-voltage electrical equipment | |
| CN205479618U (en) | Pneumatic remote regulating system of voltage regulating station | |
| CN102867453B (en) | Practical training system and practical training control device for low-voltage capacitor box | |
| CN207814927U (en) | A kind of sulfur hexafluoride combined electric appliance gas charged for replacement control device | |
| CN206848433U (en) | One kind takes the control external breaker function batch detecting device of electric energy meter | |
| CN207164215U (en) | A kind of breaker test power supply and system | |
| CN204201489U (en) | With the gas boosting cabinet of redundancy switching function | |
| CN204858369U (en) | Integration 35kV transformer device | |
| CN204556399U (en) | A kind of multi-stage self controlling formula pipeline pressure testing device | |
| CN203097865U (en) | Oil well digitalized metering pry not influenced by environment temperature | |
| CN204065390U (en) | A kind of vehicular 1000kV voltage transformer (VT) calibration equipment | |
| CN104538861A (en) | Intelligent simulation distribution box | |
| CN206348982U (en) | A kind of gas fueling station system simulation training platform |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140409 |