CN219283049U - Gas mixing fills filling device - Google Patents
Gas mixing fills filling device Download PDFInfo
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- CN219283049U CN219283049U CN202320133015.XU CN202320133015U CN219283049U CN 219283049 U CN219283049 U CN 219283049U CN 202320133015 U CN202320133015 U CN 202320133015U CN 219283049 U CN219283049 U CN 219283049U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/32—Hydrogen storage
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Abstract
The utility model discloses a gas mixing filling device, which comprises: the air inlet unit comprises a first air inlet pipeline and a second air inlet pipeline, and an air inlet, a compressor unit, a condenser and an expansion tank which are sequentially connected along the air flowing direction are arranged on the first air inlet pipeline and the second air inlet pipeline; the mixed gas filling unit is provided with a mixed gas compressor unit and a mixed gas outlet, and the mixed gas outlet is used for outputting mixed gas to an external gas container. The utility model is suitable for mixing different types of air sources, has simple structure, convenient operation and low maintenance cost, and has higher practicability.
Description
Technical Field
The utility model relates to the technical field of mixed gas charging, in particular to a gas mixed charging device.
Background
Sulfur hexafluoride (SF) 6 ) Is an inert gas with remarkable greenhouse effect and is listed as global requirementOne of six gases used is regulated. Equivalent SF 6 Gas and CO 2 SF compared with gas 6 The greenhouse effect of the gas corresponds to CO 2 23900 times of gas. SF (sulfur hexafluoride) 6 The degradation process in the atmosphere is very slow, taking about 3000 years. Using SF 6 And N 2 Mixed gas instead of pure SF 6 The gas can obviously reduce SF 6 The usage amount and leakage reduce the harm of greenhouse gases, reduce the manufacturing cost of GIS, and have great significance for energy conservation, emission reduction and low carbon development.
The existing mixing and inflating device is that 2 kinds of gases are accurately controlled in component content through a mass flowmeter, then a certain ratio array is formed in a mixing barrel, and the gases are pumped into a GIS through a compressor. The mixing and inflating device has the advantages that the flow meter is initially set, the type and the proportion of the air source cannot be changed at will, and the universality is poor. In addition, the mixed gas charging device is complex to operate, a two-step gas charging method is adopted during gas charging, the GIS is charged to a certain pressure in the first step, then the gas charging is stopped, the purity is detected by an instrument, related parameters are manually adjusted according to the existing purity, and then the gas charging is carried out, the gas charging cannot be independently completed without a certain technical capability, and the requirement on technicians is high.
Disclosure of Invention
Aiming at the problems of poor universality and extremely complex operation of the mixed gas filling device in the prior art, the utility model aims to provide the gas mixed gas filling device which is simple to operate and wide in application range.
In order to achieve the above object, the present utility model provides the following technical solutions:
the gas mixing and filling device comprises an air inlet unit, a mixed gas buffer tank and a mixed gas filling unit which are sequentially connected through pipelines, wherein the air inlet unit comprises a first air inlet pipeline and a second air inlet pipeline, and an air inlet, a compressor unit, a condenser and an expansion tank which are sequentially connected along the gas flowing direction are arranged on the first air inlet pipeline and the second air inlet pipeline; the mixed gas filling unit is provided with a mixed gas compressor unit and a mixed gas outlet, the mixed gas compressor unit is connected with the mixed gas outlet through a pipeline, and the mixed gas outlet is used for outputting mixed gas to an external gas container.
In some embodiments, the gas mixing and filling device is further provided with a PLC control system, and the PLC control system is electrically connected to the gas inlet unit, the mixed gas buffer tank, and the mixed gas filling unit, respectively, for regulating and controlling the gas pressure in each place.
In some embodiments, the gas mixing filling device is further provided with a vacuumizing unit, wherein the vacuumizing unit comprises a vacuum pump, a vacuum gauge and a device standby interface, and the vacuum pump and the vacuum gauge are electrically connected with the PLC control system; the vacuum pump and the vacuum gauge are arranged between the mixed gas compressor unit and the mixed gas outlet in parallel, and the vacuum pump is connected with the gas inlet of the external gas container so as to vacuumize the external gas container; the device standby interface is arranged between the mixed gas buffer tank and the mixed gas compressor unit, and is connected with the vacuum pump so as to vacuumize the device.
In some embodiments, the vacuumizing unit is further provided with a vacuum compressor, an air inlet of the vacuum compressor is connected with an air outlet of the mixed gas buffer tank, and an air outlet of the vacuum compressor is connected with an air inlet of the mixed gas compressor unit and is used for further vacuumizing the mixed gas buffer tank when the device vacuumizes itself.
In some embodiments, the gas mixing and filling device is further provided with a pressure regulating assembly, the pressure regulating assembly is electrically connected with the PLC control system, the pressure regulating assembly comprises a pressure gauge and an exhaust valve, the pressure gauge and the exhaust valve are arranged at the upper end of the mixed gas buffer tank, the pressure gauge is used for monitoring the gas mixing pressure in the mixed gas buffer tank in real time, and the exhaust valve is used for partially releasing the gas pressure in the mixed gas buffer tank so as to prevent the internal pressure of the tank from exceeding a set value.
In some embodiments, the pressure regulating assembly further comprises an inhalation pressure reducing valve set and/or a safety valve set; the first air suction pressure reducing valve, the second air suction pressure reducing valve and the third air suction pressure reducing valve are respectively arranged on connecting pipelines of the first air inlet pipeline, the second air inlet pipeline and the mixed gas filling unit and used for reducing the pressure of gas in the pipelines; and/or the safety valve group comprises a first safety valve and a second safety valve, and the first safety valve and the second safety valve are respectively arranged on the first air inlet pipeline and the second air inlet pipeline so as to play a role in exhausting and reducing pressure when the air pressure in the device is overhigh.
In some embodiments, the gas mixture charging device may be provided with a plurality of mixed gas buffer tanks connected in parallel between the gas inlet unit and the mixed gas charging unit.
In some embodiments, a condenser and/or a dry filter is also provided between the mixed gas compressor train and the mixed gas outlet.
In some embodiments, a moving wheel is further arranged at the bottom of the gas mixing and filling device.
In some embodiments, the gas mixing and filling device can be used for mixing and filling nitrogen and sulfur hexafluoride gas.
Compared with the prior art, the gas mixing and filling device provided by the utility model has the following beneficial effects:
1. the gas mixing and filling device provided by the utility model mixes the gases by adopting the pressure ratio, the 2 gases introduced into the device are respectively compressed according to the set mixing pressure ratio, and the compressed high-temperature high-pressure gas is changed into normal-temperature and normal-pressure gas for mixing after being processed by the condenser and the expansion tank. Compared with a gas mixing device with constant gas mixing flow and proportion, the device does not limit the type of gas source, the mixing proportion can be adjusted between 0% and 100%, and the device has wide universality;
2. the gas mixing and filling device provided by the utility model is simple to operate, as long as the mixed gas outlet is connected with the GIS, the gas inlet of the gas inlet pipeline is connected with 2 gas cylinders, the proportion of the mixed gas and the GIS charging pressure are set, the device is started to mix the gas, personnel do not need to take care during the working period of the device, and the equipment can be automatically stopped after the gas is filled;
3. the gas mixing and filling device provided by the utility model is provided with the plurality of parallel mixed gas buffer tanks, so that the mixed gas buffer tanks can alternately output mixed gas to the outside, and the working efficiency of filling is improved;
4. the gas mixing filling device provided by the utility model has low maintenance cost, the used parts are common general parts in the market, the maintenance is simple and convenient, and the maintenance cost is low;
5. the gas mixing filling device provided by the utility model is provided with the movable wheels, so that the device is convenient to move and transport, and the practicability of the device is improved.
Drawings
The above features, technical features, advantages and implementation of the present utility model will be further described in the following description of preferred embodiments with reference to the accompanying drawings in a clear and easily understood manner.
Fig. 1 is a schematic diagram of the overall structure of the active gas mixing and filling device of the present utility model.
Reference numerals illustrate:
1—N 2 an air inlet; 2-N 2 A safety valve; 3-N 2 A pressure gauge; 4-a first suction relief valve; 5-N 2 A compressor unit; 6-N 2 A condenser; 7-a first safety valve; 8-N 2 An expansion tank; 9-a first mixed gas buffer tank; 10-a first pressure gauge; 11-a first exhaust valve; 12-SF 6 An air inlet; 13-SF 6 A pressure gauge: 14-a second suction relief valve; 15-SF 6 A compressor unit; 16-SF 6 A condenser; 17-a second safety valve; 18-SF 6 An expansion tank; 19-a second mixed gas buffer tank; 20-a second pressure gauge; 21-a second exhaust valve; 22-device standby interface; 23-a third suction relief valve; 24-a vacuum compressor; 25—a mixed gas compressor unit; 26-a condenser; 27-a dry filter; 28—a mixed gas pressure gauge; 29-a mixed gas outlet; 30-vacuum gauge; 31-a vacuumizing pressure gauge; 32-vacuum pump.
Detailed Description
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following description will explain the specific embodiments of the present utility model with reference to the accompanying drawings. It is evident that the drawings in the following description are only examples of the utility model, from which other drawings and other embodiments can be obtained by a person skilled in the art without inventive effort.
For simplicity of the drawing, only the parts relevant to the utility model are schematically shown in each drawing, and they do not represent the actual structure thereof as a product. Additionally, in order to simplify the drawing for ease of understanding, components having the same structure or function in some of the drawings are shown schematically with only one of them, or only one of them is labeled. Herein, "a" means not only "only this one" but also "more than one" case.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
In this context, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In addition, in the description of the present application, the terms "first," "second," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.
The gas mixing and filling device provided by the utility model comprises an air inlet unit, a mixed gas buffer tank and a mixed gas filling unit which are sequentially connected through pipelines, wherein the device adopts a pressure mixing ratio, does not limit the type of a gas source, can set the mixing ratio according to requirements, and can adjust the mixing ratio to 0% -100%.
In this example, the gas mixing and filling device provided by the utility model is applied to N 2 And SF (sulfur hexafluoride) 6 The gases are mixed and inflated. Referring to fig. 1 of the drawings, an air intake unit includes a first air intake line and a second air intake line.
N are sequentially arranged on the first air inlet pipeline along the gas flow direction 2 Air inlets 1, N 2 Pressure gauge 3, first suction relief valve 4, N 2 Compressor unit 5, N 2 Condenser 6, first safety valve 7 and N 2 Expansion tank 8. From N 2 The air inlet 1 is communicated with N 2 After that, N 2 N is measured by a pressure gauge 3 2 Initial air pressure, first suction relief valve 4 adjusts N 2 Intake pressure, N 2 The compressor block 5 is according to N 2 Set mixed aeration value pair N 2 Compressing, and high temperature and high pressure N after compression 2 Through N 2 Condenser 6 enters N 2 The expansion tank 8 is restored to normal temperature and normal pressure N 2 . The first safety valve 7 exhausts when the air pressure in the first air inlet pipeline is too high, and plays a role in protecting equipment in the first air inlet pipeline. In addition, N 2 N externally connected with air inlet 1 2 The maximum pressure of the bottle is 15MPa, the maximum pressure which can be born by the device is 5MPa, and N 2 Bottle direct connection N 2 The device is easily damaged after the air inlet 1, and thus N is required 2 The outlet of the bottle is required to be provided with a pressure reducer, and the device is arranged at N 2 Intake ports 1 and N 2 N is also arranged between the pressure gauges 3 2 Safety valve 2, N without pressure reducing valve 2 The bottle plays a protective role when directly connected with the device.
SF is sequentially arranged on the second air inlet pipeline along the gas flow direction 6 Air inlet 12, SF 6 Pressure gauge 13, second suction relief valve 14, SF 6 Compressor unit 15, SF 6 Condenser 16, second safety valve 17 and SF 6 Expansion tank 18. From SF 6 Air inlet 12 opens into SF 6 After that, SF 6 SF is measured by a pressure gauge 13 6 Initial air pressure, second suction relief valve 14 adjusts SF 6 Intake pressure, SF 6 Compressor group 15 is based on SF 6 Set mixed aeration value pair SF 6 Compressing, and high-temperature and high-pressure SF after compression 6 Through SF 6 Condenser 16 enters SF 6 SF is recovered to normal temperature and normal pressure in the expansion tank 18 6 . The second safety valve 17 exhausts when the air pressure in the second air inlet pipeline is too high, and plays a role in protecting equipment in the second air inlet pipeline.
In this example, referring to fig. 1 of the specification, the mixed gas charging unit is provided with a mixed gas compressor unit 25 and a mixed gas outlet 29 connected by a pipe, and the mixed gas outlet 29 is used for outputting the mixed gas to an external gas container.
In one embodiment, referring to fig. 1 of the specification, the gas mixing and filling device provided by the utility model is further provided with a vacuumizing unit, wherein the vacuumizing unit comprises a vacuum pump 32 and a vacuum gauge 30 which are arranged in parallel between the mixed gas compressor unit 25 and the mixed gas outlet 29, and a vacuumizing pressure gauge 31 is further arranged between the vacuum pump 32 and the vacuum gauge 30, so that the pipeline internal pressure of the vacuumizing unit can be displayed.
In this example, the evacuation unit is mainly used to evacuate residual gas in the device before the device is filled with the mixed gas. The vacuum pump 32 is connected to the inlet of the external gas container to vacuum the external gas container.
In this example, the evacuation unit further comprises a device back-up interface 22 provided between the first mixed gas buffer tank 9 and the mixed gas compressor train 25, the device back-up interface 22 being connected to a vacuum pump 32 to evacuate the device itself.
In one embodiment, referring to fig. 1 of the specification, the vacuumizing unit further comprises a vacuum compressor 24, wherein an air inlet of the vacuum compressor 24 is connected with an air outlet of the first mixed gas buffer tank 9, and an air outlet of the vacuum compressor 24 is connected with an air inlet of the mixed gas compressor unit 25, so as to further vacuumize the first mixed gas buffer tank 9 when the device itself vacuumizes.
In one embodiment, referring to fig. 1 of the specification, a pressure regulating assembly is further disposed at the upper end of the first mixed gas buffer tank 9, the pressure regulating assembly includes a first pressure gauge 10 and a first exhaust valve 11, the first pressure gauge 10 displays the gas pressure in the mixed gas buffer tank 9, and the first exhaust valve 11 is used for partially releasing the gas pressure in the gas buffer tank 9 so as to prevent the internal pressure of the tank from exceeding a set value.
In one embodiment, referring to fig. 1 of the drawings, the pressure regulating assembly further comprises an air suction relief valve block and/or a safety valve block; the air suction pressure reducing valve group comprises a first air suction pressure reducing valve 4, a second air suction pressure reducing valve 14 and a third air suction pressure reducing valve 23, and the first air suction pressure reducing valve 4, the second air suction pressure reducing valve 14 and the third air suction pressure reducing valve 23 are respectively arranged on a first air inlet pipeline, a second air inlet pipeline and a mixed gas filling pipeline and used for reducing the gas pressure in the pipelines; and/or the safety valve group comprises a first safety valve 7 and a second safety valve 17, the first safety valve 7 and the second safety valve 17 are respectively arranged on the first air inlet pipeline and the second air inlet pipeline, and the safety valve group plays a role in exhausting and reducing pressure when the air pressure in the device is too high.
In some embodiments, referring to fig. 1 of the drawings, the gas mixture charging apparatus may be provided with a plurality of gas mixture buffer tanks connected in parallel between the gas inlet unit and the gas mixture charging line. Preferably, the gas mixing and filling device provided by the utility model is provided with a second mixed gas buffer tank 19, and the upper end of the second mixed gas buffer tank 19 is provided with a second pressure gauge 20 and a second exhaust valve 21. Because a certain time is needed for mixing the two gases in the first mixed gas buffer tank 9, the second mixed gas buffer tank 19 can be started at the same time to mix the gases, so that the device can continuously output the mixed gases outwards. Or when one of the mixing buffer tanks fails, the other mixing buffer tank replaces the working of the mixing buffer tank, so that the gas mixing efficiency of the device is greatly improved.
In one embodiment, referring to fig. 1 of the specification, the gas mixing and filling device is further provided with a PLC control system, and the PLC control system is electrically connected to the gas inlet unit, the mixed gas buffer tank, the mixed gas filling unit, the vacuumizing unit and the pressure regulating component, respectively, so as to regulate and control the gas pressure everywhere. Preferably, the PLC control system can alsoAnd setting a touch display screen, and setting an inflation value and an operation flow of the device by a worker through touching the display screen. After the device is connected, the vacuumizing unit is started to vacuumize the device and an external gas container, and N is arranged on the touch screen 2 And SF (sulfur hexafluoride) 6 After the gas charging value, the second air inlet pipeline switch is started, SF 6 Gas passing SF 6 Compressor unit 15, SF 6 Condenser 16 and SF 6 The mixture enters the first mixed gas buffer tank 9 after the expansion tank 18, and the SF is stopped after the value of the first pressure gauge 10 reaches the set inflation value 6 Gas, turn on the first air inlet pipeline switch, N 2 Through N 2 Compressor unit 5, N 2 Condensers 6 and N 2 After the expansion tank 8, the mixture enters a first mixed gas buffer tank 9, and N is continuously introduced 2 Stopping the inflation until the value of the first pressure gauge 10 reaches the set inflation value, N 2 With SF 6 After the gases are uniformly mixed in the first mixed gas buffer tank 9, the mixed gas is introduced into a mixed gas filling unit for compression and then is output into an external gas container.
In one embodiment, referring to fig. 1 of the specification, a condenser 26 and a drying filter 27 are further disposed between the mixed gas compressor unit 25 and the mixed gas outlet 29, so as to perform condensation cooling, water removal and impurity removal steps on the output mixed gas, and improve the quality of the output mixed gas.
In this example, a mixed gas pressure gauge 28 is further disposed between the drying filter 27 and the mixed gas outlet 29, so that the pressure of the mixed gas can be intuitively displayed, and the output mixed gas is ensured to meet the mixed gas requirement.
In one embodiment, the bottom of the gas mixing and filling device is also provided with a moving wheel, so that the device is convenient for workers to move and transport.
The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.
Claims (10)
1. A gas mixing filling device is characterized in that,
comprises an air inlet unit, a mixed gas buffer tank and a mixed gas filling unit which are sequentially connected through pipelines,
the air inlet unit comprises a first air inlet pipeline and a second air inlet pipeline, and an air inlet, a compressor unit, a condenser and an expansion tank which are sequentially connected along the air flowing direction are arranged on the first air inlet pipeline and the second air inlet pipeline;
the mixed gas filling unit is provided with a mixed gas compressor unit and a mixed gas outlet, the mixed gas compressor unit is connected with the mixed gas outlet through a pipeline, and the mixed gas outlet is used for outputting mixed gas to an external gas container.
2. The gas mixing and filling device according to claim 1, wherein,
the gas mixing and filling device is further provided with a PLC control system, and the PLC control system is respectively and electrically connected with the air inlet unit, the mixed gas buffer tank and the mixed gas filling unit and used for regulating and controlling gas pressure at all positions.
3. A gas mixing and filling device according to claim 2, wherein,
the gas mixing filling device is also provided with a vacuumizing unit, the vacuumizing unit comprises a vacuum pump, a vacuum gauge and a device standby interface, and the vacuum pump and the vacuum gauge are electrically connected with the PLC control system;
the vacuum pump and the vacuum gauge are arranged between the mixed gas compressor unit and the mixed gas outlet in parallel, and the vacuum pump is connected with the gas inlet of the external gas container so as to vacuumize the external gas container;
the device standby interface is arranged between the mixed gas buffer tank and the mixed gas compressor unit, and is connected with the vacuum pump so as to vacuumize the device.
4. A gas mixing and filling device according to claim 3, wherein,
the vacuum pumping unit is further provided with a vacuum compressor, an air inlet of the vacuum compressor is connected with an air outlet of the mixed gas buffer tank, and an air outlet of the vacuum compressor is connected with an air inlet of the mixed gas compressor unit and is used for further vacuumizing the mixed gas buffer tank when the device is vacuumized.
5. A gas mixing and filling device according to claim 2, wherein,
the gas mixing filling device is further provided with a pressure regulating assembly, the pressure regulating assembly is electrically connected with the PLC control system and comprises a pressure gauge and an exhaust valve, the pressure gauge and the exhaust valve are arranged on the mixed gas buffer tank, the pressure gauge is used for monitoring the gas mixing pressure in the mixed gas buffer tank in real time, and the exhaust valve is used for partially releasing the gas pressure in the mixed gas buffer tank so as to prevent the internal pressure of the tank from exceeding a set value.
6. The gas mixing and filling device according to claim 5, wherein,
the pressure regulating assembly further comprises an air suction pressure reducing valve group and/or a safety valve group;
the first air suction pressure reducing valve, the second air suction pressure reducing valve and the third air suction pressure reducing valve are respectively arranged on connecting pipelines of the first air inlet pipeline, the second air inlet pipeline and the mixed gas filling unit and used for reducing the pressure of gas in the pipelines; and/or the number of the groups of groups,
the safety valve group comprises a first safety valve and a second safety valve, and the first safety valve and the second safety valve are respectively arranged on the first air inlet pipeline and the second air inlet pipeline so as to play a role in exhausting and reducing pressure when the air pressure in the device is too high.
7. The gas mixing and filling device according to claim 1, wherein,
the gas mixing and filling device can be provided with a plurality of mixed gas buffer tanks connected in parallel between the air inlet unit and the mixed gas filling unit.
8. The gas mixing and filling device according to claim 1, wherein,
and a condenser and/or a drying filter are/is arranged between the mixed gas compressor unit and the mixed gas outlet.
9. The gas mixing and filling device according to claim 1, wherein,
the bottom of the gas mixing and filling device is also provided with a moving wheel.
10. The gas mixing and filling device according to claim 1, wherein,
the gas mixing and filling device can be used for mixing and filling nitrogen and sulfur hexafluoride gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320133015.XU CN219283049U (en) | 2023-02-07 | 2023-02-07 | Gas mixing fills filling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320133015.XU CN219283049U (en) | 2023-02-07 | 2023-02-07 | Gas mixing fills filling device |
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| Publication Number | Publication Date |
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| CN219283049U true CN219283049U (en) | 2023-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202320133015.XU Active CN219283049U (en) | 2023-02-07 | 2023-02-07 | Gas mixing fills filling device |
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| CN (1) | CN219283049U (en) |
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2023
- 2023-02-07 CN CN202320133015.XU patent/CN219283049U/en active Active
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