CN203525575U - High-pressure mixed gas inflating device - Google Patents
High-pressure mixed gas inflating device Download PDFInfo
- Publication number
- CN203525575U CN203525575U CN201320615348.2U CN201320615348U CN203525575U CN 203525575 U CN203525575 U CN 203525575U CN 201320615348 U CN201320615348 U CN 201320615348U CN 203525575 U CN203525575 U CN 203525575U
- Authority
- CN
- China
- Prior art keywords
- pressure
- inflating
- inflation
- gas
- branch road
- 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
Landscapes
- Pipeline Systems (AREA)
Abstract
The utility model discloses a high-pressure mixed gas inflating device which comprises at least two inflating branches with air inlet ends and air outlet ends, wherein each inflating branch is sequentially provided with a pressure regulating unit and an inflating unit from each inlet end to each outlet end, the air outlet end of each inflating branch is communicated with an inflating header used for connecting an air chamber, each inflating unit comprises a first throttle valve and a gas flow meter which are sequentially serially connected, and the gas flow meter is connected to the gas outlet end of the inflating branch. The high-pressure mixed gas inflating device provided by the utility model comprises at least two inflating branches with the air inlet ends and the air outlet ends, and thus by adopting a multi-branch parallel inflating manner, a plenty of mixed gases can be once inflated; by combining the throttle valves and the gas flow meters, the inflating flow is controlled, and the inflating ratio of all gases can be accurately controlled; and the high-pressure mixed gas inflating device is easy to implement, is reduced in labor intensity of workers, is simple in pipeline, and can be merged in a common gas recovering system of high-voltage electrical equipment.
Description
Technical field
The utility model belongs to high voltage electric equipment with mist aerating device field, relates to a kind of high voltage electric equipment mist aerating device.
Background technology
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 breaker (GCB), combined electrical apparatus (GIS), transformer (GIT), cable (GIC) etc., but sulfur hexafluoride gas also has weak point as a kind of dielectric, 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 sulfur hexafluoride, mixes excessively with other gases.
When using mist to insulate, in mist, 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 blowing 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 weak point 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 the blowing 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 mist 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 mists, 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 magnetic valve of latus rectum flow, the control of how many realizations by controlling different magnetic valve open-interval length or opening times to multiple gases mixing match.This aerating device needs strict monitoring inflationtime, needs a plurality of magnetic valves to control simultaneously, controls comparatively complicated.
Utility model content
The purpose of this utility model is to provide a kind of high pressure mixed gas aerating device, 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 high pressure mixed gas aerating device.
In order to realize above object, the technical scheme that the utility model adopts is: a kind of high pressure mixed gas aerating device, comprise at least two inflation branch roads with inlet end and outlet side, on each inflation branch road, from entrance point to the port of export, 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 inflating branch road outlet side.
Described pressure regulation unit comprises the second choke valve, pressure regulator valve and the pressure regulating solenoid valve that string is established successively, and described the second choke 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 magnetic valve is provided with for observing the second Pressure gauge of the blowing pressure.
Described inflation main pipe rail is provided with for observing the 3rd Pressure gauge of main pipe rail gas pressure.
The Electromagnetic Control air gauge of described the 3rd Pressure gauge for being controlled by controller.
Described pressure regulating solenoid valve is two-position two-way solenoid valve.
High pressure mixed gas aerating device 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 mists; Adopt choke 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 labour intensity, and pipeline being simple, this aerating device can be incorporated in the conventional gas recovery system of high voltage electric equipment.
Each air gauge setting can make at whole gas replenishment process, few people or no worker monitor.
Accompanying drawing explanation
The structure chart of Fig. 1 the utility model high pressure mixed gas aerating device embodiment.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment, the utility model is described further.
Be illustrated in figure 1 the structure chart of the utility model high pressure mixed gas aerating device embodiment, 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 the port of export, each inflate the outlet side of branch road with for being connected the inflation main pipe rail connection of air chamber; Inflation unit comprises the first throttle valve 7 that string is established successively and is connected to the gas flowmeter 5 of inflation branch road outlet side.
The pressure regulation unit of the present embodiment comprises that string is established successively the second choke valve 9, pressure regulator valve 3 and pressure regulating solenoid valve 4, the second choke valves 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 sulfur hexafluoride, now gradually to the Mixed gas insulation development of sulfur 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 choke 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 air gauge 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 the blowing pressure, for monitoring control valve output gas pressure.Air gauge 8 output pressures of many branch roads must be consistent simultaneously, and setting pressure equals the blowing pressure that high pressure electrical products technical conditions 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 air gauge of the 3rd Pressure gauge for being controlled by controller.
Due to sulfur hexafluoride gas density, be not to change according to The 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 output 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 air gauge in total gas circuit) can reach after the force value of specification requirement 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.
Take two inflation branch roads as example explanation the utility model operation 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 choke 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.
After bleed pressure satisfies condition, open the pressure regulator valve 3 on branch road, observe the pressure of the second Pressure gauge 8, its output pressure is set in to the blowing pressure that high pressure electrical products technical conditions require, after the pressure of all the second Pressure gauges 8 on each branch road is all consistent, open inflation magnetic 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 conditions 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.
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 high pressure mixed gas aerating device, comprise at least two inflation branch roads with inlet end and outlet side, comprise at least two inflation branch roads with inlet end and outlet side, on each inflation branch road, from entrance point to the port of export, 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: inflation unit comprises the first throttle valve that string is established successively and is connected to the gas flowmeter of inflating branch road outlet side.
2. high pressure mixed gas aerating device according to claim 1, it is characterized in that: described pressure regulation unit comprises the second choke valve, pressure regulator valve and the pressure regulating solenoid valve that string is established successively, described the second choke 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. high pressure mixed gas aerating device 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. high pressure mixed gas aerating device 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. high pressure mixed gas aerating device according to claim 3, is characterized in that: the inflation branch road between described pressure regulator valve and inflation magnetic valve is provided with for observing the second Pressure gauge of the blowing pressure.
6. high pressure mixed gas aerating device 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. high pressure mixed gas aerating device according to claim 6, is characterized in that: the Electromagnetic Control air gauge of described the 3rd Pressure gauge for being controlled by controller.
8. high pressure mixed gas aerating device according to claim 2, 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 |
|---|---|---|---|
| CN201320615348.2U CN203525575U (en) | 2013-09-30 | 2013-09-30 | High-pressure mixed gas inflating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320615348.2U CN203525575U (en) | 2013-09-30 | 2013-09-30 | High-pressure mixed gas inflating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203525575U true CN203525575U (en) | 2014-04-09 |
Family
ID=50411838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320615348.2U Expired - Lifetime CN203525575U (en) | 2013-09-30 | 2013-09-30 | High-pressure mixed gas inflating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203525575U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104966647A (en) * | 2015-06-08 | 2015-10-07 | 国网新疆电力公司检修公司 | Mixed gas filling method of porcelain knob type breaker |
| CN107726043A (en) * | 2017-09-08 | 2018-02-23 | 国家电网公司 | A kind of mixed gas remodeling method of 110kV sulfur hexafluoride gas insulation current transformers |
| 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 |
| CN109931501A (en) * | 2017-12-18 | 2019-06-25 | 上海弗川自动化技术有限公司 | A kind of Segmented heating gas delivery system |
-
2013
- 2013-09-30 CN CN201320615348.2U patent/CN203525575U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104966647A (en) * | 2015-06-08 | 2015-10-07 | 国网新疆电力公司检修公司 | Mixed gas filling method of porcelain knob type breaker |
| CN104966647B (en) * | 2015-06-08 | 2017-08-11 | 国网新疆电力公司检修公司 | A kind of porcelain knob breaker mixed gas methods for filling |
| CN107726043A (en) * | 2017-09-08 | 2018-02-23 | 国家电网公司 | A kind of mixed gas remodeling method of 110kV sulfur hexafluoride gas insulation current transformers |
| CN109931501A (en) * | 2017-12-18 | 2019-06-25 | 上海弗川自动化技术有限公司 | A kind of Segmented heating gas delivery 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103591452B (en) | High voltage electric equipment mist aerating device | |
| CN203533209U (en) | Mixed gas filling device | |
| CN203525575U (en) | High-pressure mixed gas inflating device | |
| CN106772008B (en) | Pressure-controllable SF6 gas density relay signal simulation tester | |
| CN203533189U (en) | Mixed gas inflating device for high-voltage electric equipment | |
| CN104132237A (en) | Low temperature mixed insulating gas supplementing device | |
| CN101811006A (en) | Standard gas distributing instrument | |
| CN105699366A (en) | Plasma spectral measurement device and method for SF6 mixed gas | |
| CN102608472A (en) | Power grid measurement and monitoring system and methods thereof | |
| CN109268679A (en) | Weight method filling device for Mixed gas insulation high-voltage electrical equipment | |
| CN203405729U (en) | Testing device of rail transit brake control device | |
| 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 | |
| CN205484062U (en) | SF6 gas mixture bulk plasmon spectroscopic measurement device | |
| CN209448423U (en) | A kind of simulation system of configuration type power distribution network dynamic model mixing earthing mode | |
| CN102707172A (en) | Test device for simulating icing of power transmission line | |
| CN104076314B (en) | A kind of vehicular 1000kV voltage transformer (VT) calibration equipment | |
| CN203414861U (en) | High and low temperature test environment control device used for geotechnical model tests | |
| CN206192715U (en) | Sulfur hexafluoride gas sampling valve | |
| CN204065390U (en) | A kind of vehicular 1000kV voltage transformer (VT) calibration equipment | |
| CN207164215U (en) | A kind of breaker test power supply and system | |
| CN109254604A (en) | High-tension distribution chamber of converting indoor air chemical pollution control method | |
| CN206207011U (en) | A kind of insulative gas mix body inflation system | |
| CN203097865U (en) | Oil well digital metering pry free from influence of environmental temperature | |
| CN208126174U (en) | A kind of non-closed non-defeated production of hydrocarbons observing and controlling cabinet of pipe |
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 |