CN212372225U - Glove box dynamic feedback gas mixing system - Google Patents
Glove box dynamic feedback gas mixing system Download PDFInfo
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- CN212372225U CN212372225U CN202020961923.4U CN202020961923U CN212372225U CN 212372225 U CN212372225 U CN 212372225U CN 202020961923 U CN202020961923 U CN 202020961923U CN 212372225 U CN212372225 U CN 212372225U
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Abstract
The utility model discloses a glove box dynamic feedback gas mixing system, which comprises a PLC controller, an online gas analyzer, at least two gas inlet components with the same structure, a glove box cavity and an exhaust component, wherein the gas inlet components comprise a gas inlet pipeline, a gas mass flow controller and an electromagnetic valve; wherein, in each intake assembly: the head end of the air inlet pipeline is communicated with an air source, the air inlet pipeline is sequentially provided with an air mass flow controller and an electromagnetic valve along the air flow direction, and the tail end of the air inlet pipeline is communicated with the glove box cavity. The utility model discloses can sneak into a gas and maintain the equipment of this gas concentration of cavity according to a certain proportion, through gas mass flow controller and the cooperation of a plurality of solenoid valves, can sneak into this gas fast to keep in this gas concentration within range of settlement, satisfy the product technology demand.
Description
Technical Field
The utility model belongs to the technical field of gaseous thoughtlessly join in marriage, concretely relates to glove box dynamic feedback mixes gas system.
Background
The existing gas mixing system or gas mixing method is rough, and only mixes the gas in proportion or fills the gas into a mixed gas tank in proportion, and the method is very time-consuming, and simultaneously, the gas charging work is very difficult due to the gas pressures of different gases.
Disclosure of Invention
In view of the above, there is a need for a dynamic feedback gas mixing system that is simple in operation, stable in precision, and capable of adapting to mixing of multiple gases.
The utility model provides a technical means that its technical problem adopted is:
the glove box dynamic feedback gas mixing system comprises a PLC (programmable logic controller), an online gas analyzer, at least two gas inlet assemblies with the same structure, a glove box cavity and an exhaust assembly, wherein each gas inlet assembly comprises a gas inlet pipeline, a gas mass flow controller and an electromagnetic valve;
wherein, in each intake assembly: the head end of the air inlet pipeline is communicated with an air source, the air mass flow controller and the electromagnetic valve are sequentially arranged on the air inlet pipeline along the air flow direction, and the tail end of the air inlet pipeline is communicated with the glove box cavity;
the online gas analyzer is connected with the glove box cavity, a data processing part of the online gas analyzer is connected with the PLC, the PLC is respectively connected with control circuits of the two gas mass flow controllers, the online gas analyzer monitors the gas concentration in the glove box cavity in real time, and the PLC respectively controls the two gas mass flow controllers to supplement gas according to the gas concentration information monitored in real time;
the exhaust assembly comprises an air outlet pipeline and a one-way valve, the air outlet pipeline is communicated with the glove box cavity, and the one-way valve is installed on the air outlet pipeline.
Preferably, each path of air inlet assembly is also communicated with a constant pressure valve, and the constant pressure valve is positioned between the air source and the air mass flow controller on the air inlet pipeline.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1. the utility model has simple operation and convenient maintenance;
2. the air supplement function of the original equipment is replaced, and air mixing can be carried out according to the set requirement;
3. the utility model discloses can sneak into a gas and maintain the equipment of this gas concentration of cavity according to a certain proportion, through gas mass flow controller and the cooperation of a plurality of solenoid valves, can sneak into this gas fast to keep in this gas concentration within range of settlement, satisfy the product technology demand.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a reference diagram of the usage status of the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
In order to make the technical solutions of the present application better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
As shown in fig. 1, in a preferred embodiment, the glove box dynamic feedback gas mixing system comprises a PLC controller, an online gas analyzer, at least two gas inlet assemblies with the same structure, a glove box cavity and an exhaust assembly, wherein the gas inlet assemblies comprise a gas inlet pipeline, a gas mass flow controller and an electromagnetic valve;
wherein, in each intake assembly: the head end of the air inlet pipeline is communicated with an air source, the air mass flow controller and the electromagnetic valve are sequentially arranged on the air inlet pipeline along the air flow direction, and the tail end of the air inlet pipeline is communicated with the glove box cavity;
the online gas analyzer is connected with the glove box cavity, a data processing part of the online gas analyzer is connected with the PLC, the PLC is respectively connected with control circuits of the two gas mass flow controllers, the online gas analyzer monitors the gas concentration in the glove box cavity in real time, and the PLC respectively controls the two gas mass flow controllers to supplement gas according to the gas concentration information monitored in real time;
the exhaust assembly comprises an air outlet pipeline and a one-way valve, the air outlet pipeline is communicated with the glove box cavity, and the one-way valve is installed on the air outlet pipeline.
Each air inlet assembly is also communicated with a constant pressure valve, and the constant pressure valve is positioned between the air source and the air mass flow controller on the air inlet pipeline.
In another embodiment as shown in fig. 2, one of the gas sources is helium, the other gas source is nitrogen, each gas source is respectively communicated with a gas inlet component, in addition, in order to improve the inflation efficiency, a rapid nitrogen inflation pipeline provided with an electromagnetic valve is communicated with the glove box cavity,
technical indexes of a helium mixing system are as follows:
1. maximum flow rate of mixed gas: 200sml
He specific concentration: 0% -10% vol
He resolution: 0.01% vol
He accuracy: less than or equal to +/-3 percent of FS
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement, component separation or combination made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (2)
1. The glove box dynamic feedback gas mixing system is characterized by comprising a PLC (programmable logic controller), an online gas analyzer, at least two gas inlet assemblies with the same structure, a glove box cavity and an exhaust assembly, wherein each gas inlet assembly comprises a gas inlet pipeline, a gas mass flow controller and an electromagnetic valve;
wherein, in each intake assembly: the head end of the air inlet pipeline is communicated with an air source, the air mass flow controller and the electromagnetic valve are sequentially arranged on the air inlet pipeline along the air flow direction, and the tail end of the air inlet pipeline is communicated with the glove box cavity;
the online gas analyzer is connected with the glove box cavity, a data processing part of the online gas analyzer is connected with the PLC, the PLC is respectively connected with control circuits of the two gas mass flow controllers, the online gas analyzer monitors the gas concentration in the glove box cavity in real time, and the PLC respectively controls the two gas mass flow controllers to supplement gas according to the gas concentration information monitored in real time;
the exhaust assembly comprises an air outlet pipeline and a one-way valve, the air outlet pipeline is communicated with the glove box cavity, and the one-way valve is installed on the air outlet pipeline.
2. The glove box dynamic feedback gas mixing system according to claim 1, wherein each gas inlet component is further communicated with a constant pressure valve, and the constant pressure valve is positioned between a gas source and the gas mass flow controller on the gas inlet pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020961923.4U CN212372225U (en) | 2020-05-30 | 2020-05-30 | Glove box dynamic feedback gas mixing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020961923.4U CN212372225U (en) | 2020-05-30 | 2020-05-30 | Glove box dynamic feedback gas mixing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212372225U true CN212372225U (en) | 2021-01-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020961923.4U Active CN212372225U (en) | 2020-05-30 | 2020-05-30 | Glove box dynamic feedback gas mixing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212372225U (en) |
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2020
- 2020-05-30 CN CN202020961923.4U patent/CN212372225U/en active Active
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