CN109316987A - Gas mixing method and gas mixing system - Google Patents
Gas mixing method and gas mixing system Download PDFInfo
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- CN109316987A CN109316987A CN201811340704.8A CN201811340704A CN109316987A CN 109316987 A CN109316987 A CN 109316987A CN 201811340704 A CN201811340704 A CN 201811340704A CN 109316987 A CN109316987 A CN 109316987A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/10—Mixing gases with gases
- B01F23/19—Mixing systems, i.e. flow charts or diagrams; Arrangements, e.g. comprising controlling means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/21—Measuring
- B01F35/211—Measuring of the operational parameters
- B01F35/2113—Pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/22—Control or regulation
- B01F35/221—Control or regulation of operational parameters, e.g. level of material in the mixer, temperature or pressure
- B01F35/2213—Pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/80—Forming a predetermined ratio of the substances to be mixed
- B01F35/88—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise
- B01F35/882—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise using measuring chambers, e.g. volumetric pumps, for feeding the substances
- B01F35/8821—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise using measuring chambers, e.g. volumetric pumps, for feeding the substances involving controlling
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- Chemical Kinetics & Catalysis (AREA)
Abstract
The present invention provides a kind of gas mixing method and gas mixing system, system includes inlet duct, gas mixing device and air regulating box, the gas mixing device includes mixed gas tank and vacuum pump, the mixed gas tank is connected to the gas pipeline far from described one end for gas bottle, the vacuum pump inlet is connected to the mixed gas tank and the air regulating box, and the outlet of the mixed gas tank is connected to the entrance of the air regulating box；Pressure controller is provided on the mixed gas tank, the pressure controller is for detecting gas pressure in the mixed gas tank.Method is according to Dalton's law (of partial pressures), it is the pressure variations for being easier measurement and obtaining by the volume variables transformations of more difficult measurement, according to the partial pressure of each gas in the mixed gas tank, it determines in obtained mixed gas, the volume ratio of each gas component, and then overcoming conventional flow meters or Double-linkage ratio adjusting valve due to being influenced by gas density, turbulent extent etc., the error brought into improves the stability of entire mixed gas system.
Description
Technical field
The invention belongs to gas mixing technical fields, and in particular to a kind of gas mixing method and gas mixing system.
Background technique
Gas mixing system is the core component of air conditioning packaging equipment.In recent years with fresh electric business flourish and
Food preservative technology is constantly progressive, and controlled atmosphere technology has also obtained quick development.Controlled atmosphere packet currently on the market
Installing standby used gas mixing system mainly has two kinds of forms of gas mixing device and gas flowmeter.
The cardinal principle of gas mixing device is to install gas pressure sensor additional in air inlet leading portion, and air inlet middle section uses air pressure storehouse
Membrane flap type gas equipressure technology, both the above measure carry out isobaric control processing to air inlet.Carry out the core component of gas mixing
It is a mechanical double linkage ratio adjusting valve, the cavity of proportioning valve is mixed according to corresponding gas different densities, flow velocity processing and fabricating
It can achieve ± 1% with precision.But its structure is complicated, cost is higher, and adaptability is poor, is not able to satisfy the mixed of multiple gases
The requirement matched.
Common flow meters blender simple structure, two or three built-in flowmeters, are adjusted for flowmeter in a device
The uninterrupted of gas changes the ratio of gas, and the design accuracy of this flowmeter itself is lower, can only ideally reach
To ± 2%~± 5% mixed-precision.During entire distribution, flowmeter is encountering bleed pressure decline, rear end packaging
It will cause gas flow fluctuations when machine intermittent gas supply, it is unstable so as to cause mixed gas precision, it is straight under serious conditions
Connecing causes mixed ratio biggish error occur.
Summary of the invention
In view of this, it is necessary to provide a kind of easy to operate, adaptable gas mixing methods.
It there is a need to provide that a kind of structure is simple, stable accuracy and the gas mixing system that can adapt to multiple gases mixture
System.
The present invention solves technological means used by its technical problem:
A kind of gas mixing method, comprising the following steps:
A. according to the content of each component gas in required mixed gas, the partial pressure P of gas with various is calculatedi；
B. mixed gas tank is vacuumized；
C. the first gas is inputted into the mixed gas tank, when the pressure P in the mixed gas tank reaches the first gas
Divide P1When, stop inputting the first gas；
D. second of gas is inputted into the mixed gas tank, when the pressure P in the mixed gas tank reaches the first gas
Partial pressure with second in gas partial pressure and value P1+P2When, stop second kind gas of input；
E. N kind gas is successively inputted into the mixed gas tank, the pressure P in the mixed gas tank reaches all N kind gases
Partial pressure and valueWhen, gas mixing terminates；
F. the air regulating box is vacuumized；
G. by the mixed gas delivery in the mixed gas tank into the air regulating box.
Preferably, it is provided with pressure controller on the mixed gas tank, and introduces PLC control system, it will be obtained in step a
Pressure controller described in the partial pressure pre-write of each component gas, when the pressure P in the mixed gas tank reaches the partial pressure of M kind gas
And valueWhen, wherein M ∈ [2, N] is automatically stopped air inlet by the PLC control system.
Preferably, in step b, before vacuumizing the mixed gas tank, the first described gas is passed through into the mixed gas tank
Body, to be replaced to gas in the mixed gas tank；It is logical to the air regulating box before vacuumizing the air regulating box in step f
Enter the mixed gas in the mixed gas tank, to replace to gas in the air regulating box.
A kind of gas mixing system, to realize above-mentioned gas mixing method, including inlet duct, gas mixing device, gas
Case and pressure control device, the inlet duct, the gas mixing device and the air regulating box is adjusted to be sequentially connected；The inlet duct
Including at least two for gas bottle and admission line, the gas mixing device includes mixing gas tank and vacuum pump, the admission line
One end is connected to the outlet for gas bottle, and the other end is connected to the entrance of the mixed gas tank；The mixed gas tank is for connecing
The gas conveyed by the gas pipeline is received and mixes, the vacuum pump inlet is connected to the mixed gas tank and the controlled atmosphere
Case, the outlet of the mixed gas tank are connected to the entrance of the air regulating box；The pressure control device include pressure controller and into
Air valve door component, the pressure controller are installed on the mixed gas tank, for detecting the pressure in the mixed gas tank, it is described into
Air valve door component is set on the admission line, and with it is described identical for gas bottle quantity, with when the pressure controller examine
When the pressure value measured reaches predetermined value, air inlet is cut off.
The present invention by adopting the above technical scheme, the beneficial effect is that: first, will be compared according to Dalton's law (of partial pressures)
The volume variables transformations of hardly possible measurement are the pressure variations for being easier measurement and obtaining, by the way that the pressure is arranged on the mixed gas tank
Force controller realizes the real-time monitoring to the mixed gas pressure inside the tank, to determine according to the partial pressure of each gas in the mixed gas tank
In obtained mixed gas, the volume ratio of each gas component, and then overcome conventional flow meters or Double-linkage ratio adjusting valve by
It is influenced in by gas density, turbulent extent etc., the error brought into, improves the stability of entire mixed gas system.Second, introducing certainly
Dynamic control, is electrically connected by the pressure controller and the shut-off valve, controls the cut-off by the pressure controller
The closing and unlatching of valve further increase the stability and intrinsic safety of system.Third, the gas mixing system and method
In, using the partial pressure of each component gas in prepared mixed gas as reference value, ignore the concrete composition of each component gas, substantially
Degree improves the applicability of the gas mixing system, not only can be to the gas of mixed multicomponent heterogeneity, can also be with
The mixture for adapting to each component gas of different volumes content, overcomes in traditional compounding method, with the presence of low volume content gas
When, the biggish defect of error.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of gas mixing system.
Fig. 2 is the annexation figure of the valve member.
In figure: gas mixing system 10, inlet duct 100, for gas bottle 110, the first gas cylinder 111, the second gas cylinder 112,
Third gas cylinder 113, gas pipeline 120, gas pressurized pump 130, gas mixing device 200, mixed gas tank 210, vacuum pump 220, temperature control
Component 230 processed, air regulating box 300, pressure control device 400, pressure controller 410, air intake valve component 420, the first intake valve
The 421, second air inlet valve group 422 of group, third air inlet valve group 423, pressure reducing valve 4201, shut-off valve 4202, check (non-return) valve 4203, pressure regulation dress
Set 500, pressure-applying unit 510, pressure relief assembly 520.
Specific embodiment
Fig. 1 is please referred to, in a preferred embodiment, a kind of gas mixing system 10, including inlet duct 100, mixed gas dress
Set 200, air regulating box 300 and pressure control device 400, the inlet duct 100, the gas mixing device 200 and the air regulating box
300 are sequentially connected；The inlet duct 100 includes at least two for gas bottle 110 and admission line 120, the gas mixing device
200 include that mixed gas tank 210 and vacuum pump 220, one end of the admission line 120 are connected to the outlet for gas bottle 110,
And the other end is connected to the entrance of the mixed gas tank 210；The mixed gas tank 210 is for receiving and mixing by the admission line
The gas of 120 conveyings, 220 entrance of vacuum pump is connected to the mixed gas tank 210 and the air regulating box 300, described mixed
The outlet of gas tank 210 is connected to the entrance of the air regulating box 300；
The pressure control device 400 includes pressure controller 410 and air intake valve component 420, the pressure controller
410 are installed on the mixed gas tank 210, and for detecting the pressure in the mixed gas tank 210, the air intake valve component 420 is set
Be placed on the admission line 120, and with it is described identical for 110 quantity of gas bottle, to detect when the pressure controller 410
To pressure value reach predetermined value when, cut off air inlet.
Before carrying out gas mixing operation, starting the vacuum pump 220, the vacuum pump 220 can be water-ring vacuum pump,
It is also possible to venturi-type steam jet pump, is also possible to negative-pressure air fan, the mixed gas tank 210 is vacuumized, described in reduction
The mixed error that the gas retained in mixed gas tank is brought into, the mixed gas tank are mesohigh pressure vessel.Maintain the mixed gas tank 210
Vacuum state, open first group of air intake valve component 420 valve, the first component gas is passed through into the air accumulator 210
Body closes first when the obtained pressure of the pressure controller 410 detection reaches the required partial pressure of the first component gas
Group air intake valve component 420.Then second group of air intake valve component 420 is opened, is passed through second group into the air accumulator 210
Divide gas, when the pressure that the pressure controller 410 detection obtains reaches the required partial pressure of the first component gas and second
When the sum of required partial pressure of kind component gas, second group of air intake valve component 420 is closed.And so on, until all components
Gas mixing is completed.Start the vacuum pump 220, the air regulating box 300 is vacuumized, and maintains the true of the air regulating box 300
Mixed gas in the air accumulator 210 is finally imported the air regulating box 300 by sky, completes gas mixing work.
Fig. 2 is please referred to, further, the air intake valve component 420 includes sequentially connected pressure reducing valve 4201, shut-off valve
4202 and check (non-return) valve 4203, the shut-off valve 4202 is for cutting off airflow channel, and the check (non-return) valve 4203 is for preventing gas from returning
Stream.
Further, the shut-off valve 4202 is pneumatic stopping valve or electromagnet cut off valve, the pressure controller 410 and institute
The electric connection of shut-off valve 4202 is stated, automatically turns on or closes to control the shut-off valve 4202 by the pressure controller 410.
In the present embodiment, PLC control is introduced, the pressure controller 410 and the shut-off valve 4202 are electrically connected, and
It can be realized automatic interlock control.Control process are as follows: each gas component partial pressure is preset in the pressure controller 410, root
According to air inlet sequence, determine the interlocking value in stage, such as the first air-intake component partial pressure p1 be the first stage, the first air-intake component partial pressure with
The sum of second air-intake component partial pressure p1+p2 is second stage, N air-intake component partial pressure and the N-1 kind partial pressure of front and
(p1+p2+ ...+pN) is the N stage, when the pressure value in the mixed gas tank that the pressure controller 211 detection obtains reaches
When to each staged pressure value, interlock condition is triggered, the shut-off valve 1302 is automatically closed, described mixed to prevent gas from going successively to
In gas tank 210.In this way, realizing the intelligence of the gas mixing system 10, manual operation error is reduced, but also system is more
Securely and reliably.
Specifically, the inlet duct 100 includes the first gas cylinder 111, the second gas cylinder 112, third gas cylinder 113 and gas transmission
Pipeline 120；The air intake valve component includes the first air inlet valve group 421, the second air inlet valve group 422 and third air inlet valve group 423,
The outlet of first gas cylinder 111, second gas cylinder 112 and the third gas cylinder 113 is connected to the gas pipeline
120, the first air inlet valve group 421, the second air inlet valve group 422 and the third air inlet valve group 423 are respectively arranged in institute
It states on gas pipeline 120, and is arranged in parallel, to control first gas cylinder 111, second gas cylinder 112 and described respectively
The flow direction of gas in three gas cylinders 113.
In a specific embodiment, first gas cylinder 111 is dioxide bottle, and second gas cylinder 112 is oxygen
Gas bottle, the third gas cylinder 113 be nitrogen gas cylinder, with by the gas mixing system 10 realization carbon dioxide, oxygen with
And the mixing of the different proportion of nitrogen.
Continuing with reference to Fig. 1, in another embodiment, the gas mixing system 10 further includes regulator 500, institute
The arrival end for stating regulator 500 is connected to the mixed gas tank 210, and outlet end is connected to the air regulating box 300；The pressure regulation
Device 500 includes the pressure-applying unit 510 and pressure relief assembly 520 being arranged in parallel, and 510 arrival end of pressure-applying unit is connected to described
Mixed gas tank 210, and outlet end is connected to the air regulating box 300, extremely by the mixed gas pressurized delivered in the mixed gas tank 210
The air regulating box 300；520 arrival end of pressure relief assembly is connected to the mixed gas tank 210, and outlet end is connected to the controlled atmosphere
Case 300, by the mixed gas reduced pressure delivery in the mixed gas tank 210 to the air regulating box 300.Specifically, the pressurization group
Part 510 is compression fan, and the pressure relief assembly 520 is venturi-type, and all has pressure adjusting function, for example, described
Pressure-regulating valve is set on mixed gas tank 210 to the pipeline of the air regulating box 300, with according to required user's pressure, to described
The air regulating box 300 conveys the mixed gas of mixture completion.
In another embodiment, the inlet duct 100 further includes gas pressurized pump 130, and the gas pressurized pump 130 enters
Mouth end is connected to the outlet for gas bottle 110, and outlet end is connected to the gas pipeline 120, by the gas supply gas
Gas pressurized in bottle 110 is delivered in the mixed gas cylinder 210.In the present embodiment, when 110 pressure reduction for gas bottle
Or when mixed 210 pressure rise of gas tank, start gas pressurized pump 130, with guarantee gas mixing work it is normal into
Row.
In another embodiment, the gas mixing device 200 further includes temperature-controlling module 230, the temperature-controlling module 230
It is set on the gas pipeline 120, to adjust the temperature of the gas entered in the mixed gas tank 210.The temperature control group
Part 230 can be electric heater, electric tracing, steam tracing, steam heating, hot water heating etc., to keep entering the mixed gas tank
The temperature of gas in 210 is constant, is further reduced distribution error, improves the stability of system.
A kind of gas mixing method, using gas mixing system 10 as described above, comprising the following steps:
A. according to the content of each component gas in required mixed gas, the partial pressure P of gas with various is calculatedi；
B. start the vacuum pump 220, the mixed gas tank 210 is vacuumized；
C. first group of air intake valve component 420 is opened, the first gas is inputted into the mixed gas tank 210, when the pressure
The pressure P in the mixed gas tank 210 that force controller 410 detects reaches the partial pressure P of the first gas1When, close first group
Air intake valve component 420；
D. second group of valve member 420 is opened, second of gas is inputted into the mixed gas tank 210, when the pressure control
The pressure P in the mixed gas tank 210 that device 410 processed detects reaches the partial pressure of gas in the partial pressure and second of the first gas
With value P1+P2When, close second group of air intake valve component 420；
E. N group air intake valve component 420 is successively opened, inputs N kind gas, the pressure into the mixed gas tank 210
The pressure P in the mixed gas tank 210 that force controller 410 detects reaches the partial pressure of all N kind gases and valueWhen, it closes
N group air intake valve component 420 is closed, gas mixing terminates；
F. start the vacuum pump 220, the air regulating box 300 is vacuumized；
G. by the mixed gas delivery in the mixed gas tank 210 into the air regulating box 300.
Further, by pressure controller 410 described in the partial pressure pre-write of each component gas obtained in step a, work as institute
State the pressure P in mixed gas tank 210 reach all M kind gases partial pressure and valueWhen, wherein M ∈ [2, N], by described
PLC control system is automatically stopped air inlet.Further, it in step b, before vacuumizing the mixed gas tank 210, is mixed to described
The first described gas is passed through in gas tank 210, to replace to gas in the mixed gas tank 210；In step f, will be described
Before air regulating box 300 vacuumizes, it is passed through the mixed gas in the mixed gas tank 210 to the air regulating box 300, to the air regulating box
Gas is replaced in 300.
In one specific embodiment, to CO2、O2、N2Three kinds of gases carry out mixture, and the gross pressure of gas is after mixture
0.1MPa (absolute pressure, similarly hereinafter), it is desirable that CO2、O2、N2The ratio of three kinds of gas is 3:2:5, then according to Dalton's law (of partial pressures)
Principle can be obtained, CO2、O2、N2The partial pressure of three kinds of gases is 0.03MPa, 0.02MPa, 0.05MPa respectively.
Firstly, using CO2The mixed gas tank 210 is replaced, termination condition is that mixed gas tank outlet detects CO2Concentration is close
CO2CO in gas cylinder2Concentration.Start the vacuum pump 220, the mixed gas tank 210 is vacuumized, until 210 internal pressure of mixed gas tank
Power is less than or equal to CO2Partial pressure 0.03MPa.CO is filled with into the mixed gas tank 2102Gas, until the mixed gas pressure inside the tank
Reach 0.03MPa, closes CO2Gas inflated valve is filled with O into the mixed gas tank 2102Gas, until the mixed gas pressure inside the tank reaches
To 0.05MPa, O is closed2Gas inflated valve is filled with N into the mixed gas tank 2102Gas, until the mixed gas pressure inside the tank reaches
0.1MPa closes N2Gas inflated valve, obtains mixed gas.
It is verified repeatedly, the distribution precision of the gas mixing system 10 can control within ± 1%, and due to system
Conventional flow meters or Double-linkage ratio adjusting valve are overcome due to being influenced by gas density, turbulent extent etc., so that the gas
Body mixing system 10 and gas mixing method can not be limited by gas component, had stronger adaptability, be can be applied to
In more complicated gas mixing operation.
The above disclosure is only the preferred embodiments of the present invention, cannot limit the right model of the present invention with this certainly
It encloses, those skilled in the art can understand all or part of the processes for realizing the above embodiment, and wants according to right of the present invention
Made equivalent variations is sought, is still belonged to the scope covered by the invention.
Claims (10)
1. a kind of gas mixing method, which comprises the following steps:
A. according to the content of each component gas in required mixed gas, the partial pressure P of gas with various is calculatedi；
B. mixed gas tank is vacuumized；
C. the first gas is inputted into the mixed gas tank, when the pressure P in the mixed gas tank reaches the partial pressure P of the first gas1
When, stop inputting the first gas；
D. second of gas is inputted into the mixed gas tank, when the pressure P in the mixed gas tank reaches the partial pressure of the first gas
With second in gas partial pressure and value P1+P2When, stop second kind gas of input；
E. N kind gas is successively inputted into the mixed gas tank, the pressure P in the mixed gas tank reaches point of all N kind gases
Press and valueWhen, gas mixing terminates；
F. the air regulating box is vacuumized；
G. by the mixed gas delivery in the mixed gas tank into the air regulating box.
2. gas mixing method as described in claim 1, which is characterized in that it is provided with pressure controller on the mixed gas tank,
And PLC control system is introduced, by pressure controller described in the partial pressure pre-write of each component gas obtained in step a, when described
Pressure P in mixed gas tank reaches the partial pressure of M kind gas and valueWhen, wherein M ∈ [2, N] is controlled by the PLC
System is automatically stopped air inlet.
3. gas mixing method as described in claim 1, which is characterized in that in step b, vacuumized by the mixed gas tank
Before, it is passed through the first described gas, into the mixed gas tank to replace to gas in the mixed gas tank；In step f, inciting somebody to action
Before the air regulating box vacuumizes, it is passed through the mixed gas in the mixed gas tank to the air regulating box, to gas in the air regulating box
Body is replaced.
4. a kind of gas mixing system, to realize the gas mixing method as described in any one of claims 1 to 3,
It is characterized in that, including inlet duct, gas mixing device, air regulating box and pressure control device, the inlet duct, the gas mixing device
It is sequentially connected with the air regulating box；
The inlet duct includes at least two for gas bottle and admission line, and the gas mixing device includes mixed gas tank and vacuum
Pump, one end of the admission line is connected to the outlet for gas bottle, and the other end is connected to the entrance of the mixed gas tank；
The mixed gas tank is connected to described for receiving and mixing the gas conveyed by the gas pipeline, the vacuum pump inlet
Mixed gas tank and the air regulating box, the outlet of the mixed gas tank are connected to the entrance of the air regulating box；
The pressure control device includes pressure controller and air intake valve component, and the pressure controller is installed on the mixed gas
On tank, for detecting the pressure in the mixed gas tank, the air intake valve component is set on the admission line, and with it is described
It is identical for gas bottle quantity, when reaching predetermined value with the pressure value detected when the pressure controller, cut off air inlet.
5. gas mixing system as claimed in claim 4, which is characterized in that the air intake valve component includes sequentially connected
Pressure reducing valve, shut-off valve and check (non-return) valve, the shut-off valve is for cutting off airflow channel, and the check (non-return) valve is for preventing gas backstreaming.
6. gas mixing system as claimed in claim 5, which is characterized in that the shut-off valve is that pneumatic stopping valve or electromagnetism are cut
Only valve, the pressure controller and the shut-off valve are electrically connected, to control the shut-off valve certainly by the pressure controller
It is dynamic to open or close.
7. gas mixing system as claimed in claim 6, which is characterized in that the inlet duct includes the first gas cylinder, second
Gas cylinder, third gas cylinder and gas pipeline；The air intake valve component include the first air inlet valve group, the second air inlet valve group and third into
The outlet of air valve group, first gas cylinder, second gas cylinder and the third gas cylinder is connected to the gas pipeline, institute
The first air inlet valve group, the second air inlet valve group and the third intake valve group is stated to be respectively arranged on the gas pipeline, and
Be arranged in parallel, to control first gas cylinder respectively, in second gas cylinder and the third gas cylinder gas flow direction.
8. the gas mixing system as described in any one of claim 4~7, which is characterized in that it further include regulator, institute
The arrival end for stating regulator is connected to the mixed gas tank, and outlet end is connected to the air regulating box；The regulator includes
The pressure-applying unit and pressure relief assembly being arranged in parallel, the pressure-applying unit arrival end is connected to the mixed gas tank, and outlet end connects
In the air regulating box, by the mixed gas pressurized delivered in the mixed gas tank to the air regulating box；The pressure relief assembly entrance
End is connected to the mixed gas tank, and outlet end is connected to the air regulating box, and the mixed gas decompression in the mixed gas tank is defeated
It send to the air regulating box.
9. gas mixing system as claimed in claim 8, which is characterized in that the inlet duct further includes gas pressurized pump,
The arrival end of the gas pressurized pump is connected to the outlet for gas bottle, and outlet end is connected to the gas pipeline, with
The gas pressurized in gas bottle is delivered in the mixed gas cylinder.
10. gas mixing system as claimed in claim 8, which is characterized in that the gas mixing device further includes temperature control group
Part, the temperature-controlling module are set on the gas pipeline, to adjust the temperature of the gas entered in the mixed gas tank.
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| CN110314565A (en) * | 2019-08-07 | 2019-10-11 | 国网安徽省电力有限公司电力科学研究院 | Multi-functional C4F7N/CO2Mixed gas air distribution system, air distributing method |
| CN110327830A (en) * | 2019-08-07 | 2019-10-15 | 国网安徽省电力有限公司电力科学研究院 | C4F7N/CO2/O2Three-element mixed gas body divides air distributing device, air distributing method |
| CN111744423A (en) * | 2019-03-29 | 2020-10-09 | 中国石油天然气股份有限公司 | Preparation device and preparation method of standard mixed gas |
| CN112180033A (en) * | 2019-07-04 | 2021-01-05 | 西安西电开关电气有限公司 | Gas mixing device and gas mixing method |
| CN112191117A (en) * | 2020-09-21 | 2021-01-08 | 上海仪器仪表自控系统检验测试所有限公司 | Blending device and blending method for multiple combustible gases |
| CN113701048A (en) * | 2021-09-01 | 2021-11-26 | 天津市鹏天工贸有限公司 | Gas charging and distributing system for automatically configuring mixed gas with rated proportion for submersible gas cylinder |
| CN114388318A (en) * | 2022-01-17 | 2022-04-22 | 苏州中科科美科技有限公司 | Multi-station air charging and discharging equipment and air charging and discharging method |
| CN115212738A (en) * | 2022-06-29 | 2022-10-21 | 广西电网有限责任公司电力科学研究院 | Multistage gas distribution device based on Dalton voltage division method |
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| CN111744423A (en) * | 2019-03-29 | 2020-10-09 | 中国石油天然气股份有限公司 | Preparation device and preparation method of standard mixed gas |
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| CN110057496B (en) * | 2019-05-24 | 2021-03-02 | 福州大学 | Pressure-sensitive paint calibration system and calibration method suitable for multi-component quenching gas |
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| WO2021023086A1 (en) * | 2019-08-07 | 2021-02-11 | 国网安徽省电力有限公司电力科学研究院 | Multifunctional c4f7n/co2 mixed gas distribution system, and gas distribution method |
| CN110327830A (en) * | 2019-08-07 | 2019-10-15 | 国网安徽省电力有限公司电力科学研究院 | C4F7N/CO2/O2Three-element mixed gas body divides air distributing device, air distributing method |
| CN110314565A (en) * | 2019-08-07 | 2019-10-11 | 国网安徽省电力有限公司电力科学研究院 | Multi-functional C4F7N/CO2Mixed gas air distribution system, air distributing method |
| CN110314565B (en) * | 2019-08-07 | 2024-03-15 | 国网安徽省电力有限公司电力科学研究院 | Multifunctional C 4 F 7 N/CO 2 Mixed gas distribution system and method |
| CN110327830B (en) * | 2019-08-07 | 2024-04-05 | 国网安徽省电力有限公司电力科学研究院 | C 4 F 7 N/CO 2 /O 2 Ternary mixed gas partial pressure distribution device and distribution method |
| CN112191117A (en) * | 2020-09-21 | 2021-01-08 | 上海仪器仪表自控系统检验测试所有限公司 | Blending device and blending method for multiple combustible gases |
| CN113701048A (en) * | 2021-09-01 | 2021-11-26 | 天津市鹏天工贸有限公司 | Gas charging and distributing system for automatically configuring mixed gas with rated proportion for submersible gas cylinder |
| CN114388318A (en) * | 2022-01-17 | 2022-04-22 | 苏州中科科美科技有限公司 | Multi-station air charging and discharging equipment and air charging and discharging method |
| CN114388318B (en) * | 2022-01-17 | 2022-12-20 | 苏州中科科美科技有限公司 | Multi-station air charging and discharging equipment and air charging and discharging method |
| CN115212738A (en) * | 2022-06-29 | 2022-10-21 | 广西电网有限责任公司电力科学研究院 | Multistage gas distribution device based on Dalton voltage division method |
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Application publication date: 20190212 |