CN211302584U - Zero gas generator - Google Patents
Zero gas generator Download PDFInfo
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- CN211302584U CN211302584U CN201922149672.XU CN201922149672U CN211302584U CN 211302584 U CN211302584 U CN 211302584U CN 201922149672 U CN201922149672 U CN 201922149672U CN 211302584 U CN211302584 U CN 211302584U
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Abstract
The utility model discloses a zero gas generator, wherein an air compressor is connected with a first interface of a first three-way electromagnetic valve and a first interface of a second three-way electromagnetic valve which are connected in parallel through a freeze dryer; the second interface of the first three-way electromagnetic valve is connected with a first primary filter, a first secondary filter, a first one-way valve, a flow controller, a high-temperature catalytic furnace, a spiral heat dissipation pipeline and a tertiary filter; a second port of the second three-way electromagnetic valve is connected with a second primary filter, a second secondary filter, a second one-way valve, a flow controller, a high-temperature catalytic furnace, a spiral heat dissipation pipeline and a tertiary filter; and the third interface of the first three-way electromagnetic valve and the third interface of the second three-way electromagnetic valve are communicated with the muffler, and the outlet of the second secondary filter is connected with the outlet of the first secondary filter through an adjusting needle valve. The utility model discloses a switching of tee bend solenoid valve and the switching of relevant valve make it have the blowback function, enable the interior molecular sieve of filter and active carbon and the abundant contact of air, produce the zero air of high purity.
Description
Technical Field
The utility model relates to an experimental apparatus technical field, concretely relates to zero gas generator.
Background
The zero gas generator can be used for preparing zero air, and the zero air has a plurality of functions, such as pure gas and standard gas for correcting the zero point of each monitoring instrument in an automatic atmosphere monitoring system; meanwhile, the high-flow and high-purity zero air has wide requirements in the research of the smoke box.
However, the zero air prepared by the zero air generating device in the prior art has low purity and low flow rate, which cannot meet the correction work of pure gas and standard gas at the zero point of each monitoring instrument in the automatic atmosphere monitoring system, and the zero air with high flow rate and high purity has wide requirements in the research of smoke boxes.
SUMMERY OF THE UTILITY MODEL
To the weak point that exists among the above-mentioned problem, the utility model provides a zero gas generator, it has the blowback function, enables the filter internal part molecular sieve and active carbon and the abundant contact of air, realizes producing high-purity zero air.
The utility model discloses a zero gas generator, include: an air compressor;
the air compressor is connected with the freeze dryer, and the freeze dryer is connected with first ports of a first three-way electromagnetic valve and a second three-way electromagnetic valve which are connected in parallel;
the second interface of the first three-way electromagnetic valve is sequentially connected with a first primary filter, a first secondary filter, a first one-way valve, a flow controller, a high-temperature catalytic furnace, a spiral heat dissipation pipeline and a tertiary filter along the airflow direction;
a second primary filter, a second secondary filter, a second one-way valve, the flow controller, the high-temperature catalytic furnace, the spiral heat dissipation pipeline and the tertiary filter are sequentially connected to a second interface of the second three-way electromagnetic valve along the airflow direction;
and the third interface of the first three-way electromagnetic valve and the third interface of the second three-way electromagnetic valve are communicated with a silencer, and the outlet of the second secondary filter is connected with the outlet of the first secondary filter through an adjusting needle valve.
As a further improvement of the utility model,
closing the first one-way valve and the second one-way valve, and opening the regulating needle valve, the first interface and the second interface of the first three-way electromagnetic valve, and the second interface and the third interface of the second three-way electromagnetic valve to realize back flushing of the second primary filter and the second secondary filter;
and closing the first check valve and the second check valve, opening the adjusting needle valve, and realizing the back flushing of the first primary filter and the first secondary filter by the second interface and the third interface of the first three-way electromagnetic valve and the first interface and the second interface of the second three-way electromagnetic valve.
As a further improvement of the utility model, the primary filter and the secondary filter contain molecular sieve and active carbon.
As a further improvement of the utility model, the high-temperature catalytic furnace is composed of a first high-temperature catalytic furnace and a second high-temperature catalytic furnace which are connected in parallel.
As a further improvement of the utility model, the pressure of adjusting the needle valve is not more than the starting pressure of first check valve or second check valve.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model is provided with two parallel air supply pipelines in the zero gas generator, when the generated high-purity zero gas flow is low, the adjusting needle valve, the first interface and the second interface of the first three-way electromagnetic valve, and the second interface and the third interface of the second three-way electromagnetic valve can be opened by closing the first one-way valve and the second one-way valve; at the moment, air generated by the air compressor reversely passes through the second secondary filter, the second primary filter and the second three-way electromagnetic valve after passing through the freeze dryer, the first three-way electromagnetic valve, the first primary filter, the first secondary filter and the adjusting needle valve, and is discharged from the silencer device; realizing the back flushing of the second primary filter and the second secondary filter; meanwhile, the adjusting needle valve, the second interface and the third interface of the first three-way electromagnetic valve, and the first interface and the second interface of the second three-way electromagnetic valve can be opened by closing the first one-way valve and the second one-way valve, and at the moment, air generated by the air compressor passes through the freeze dryer, the second three-way electromagnetic valve, the second primary filter, the second secondary filter and the adjusting needle valve, reversely passes through the first secondary filter, the first primary filter and the first three-way electromagnetic valve, and is discharged from the muffler; realizing the back flushing of the first primary filter and the first secondary filter;
the utility model discloses have the blowback function, enable the inside molecular sieve of filter and active carbon and air fully contact, realize producing high-purity zero air.
Drawings
Fig. 1 is a schematic structural diagram of a zero gas generator disclosed in an embodiment of the present invention.
In the figure:
1. an air compressor; 2. a freeze dryer; 3. a first three-way solenoid valve; 4. a first primary filter; 5. a first secondary filter; 6. a first check valve; 7. a second three-way solenoid valve; 8. a second primary filter; 9. a second secondary filter; 10. a second solenoid valve; 11. adjusting a needle valve; 12. a muffler; 13. a flow controller; 14. a first high-temperature catalytic furnace; 15. a second high-temperature catalytic furnace; 16. a spiral heat dissipation pipeline; 17. and a third-stage filter.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The invention is described in further detail below with reference to the accompanying drawings:
as shown in fig. 1, the present invention provides a zero gas generator, comprising: the device comprises an air compressor 1, a freeze dryer 2, a first three-way electromagnetic valve 3, a first primary filter 4, a first secondary filter 5, a first one-way valve 6, a second three-way electromagnetic valve 7, a second primary filter 8, a second secondary filter 9, a second electromagnetic valve 10, an adjusting needle valve 11, a silencer 12, a flow controller 13, a first high-temperature catalytic furnace 14, a second high-temperature catalytic furnace 15, a spiral heat dissipation pipeline 16 and a tertiary filter 17; the zero gas generator of the utility model is an improvement of the existing zero gas generator, and a back-blowing function is added on the basis of the existing structure; the air compressor 1, the freeze dryer 2, the primary filter, the secondary filter, the flow controller 13, the first high-temperature catalytic furnace 14, the second high-temperature catalytic furnace 15, the spiral heat dissipation pipeline 16 and the tertiary filter 17 are of the structure of the conventional zero gas generator.
In particular, the method comprises the following steps of,
the air compressor 1 of the utility model is connected with the freeze dryer 2, and the freeze dryer 2 carries out freeze drying on the compressed air generated by the air compressor 1; the outlet of the freeze dryer 2 is divided into two paths, and the two paths are respectively connected with first interfaces of a first three-way electromagnetic valve 3 and a second three-way electromagnetic valve 7 which are connected in parallel; the second interface of the first three-way electromagnetic valve 3 is sequentially connected with a first primary filter 4, a first secondary filter 5, a first one-way valve 6, a flow controller 13, a first high-temperature catalytic furnace 14 and a second high-temperature catalytic furnace 15 which are connected in parallel, a spiral heat dissipation pipeline 16 and a tertiary filter 17 along the airflow direction; a second primary filter 8, a second secondary filter 9, a second one-way valve 10, a flow controller 13, a first high-temperature catalytic furnace 14 and a second high-temperature catalytic furnace 15 which are connected in parallel, a spiral heat dissipation pipeline 16 and a tertiary filter 17 are sequentially connected to a second interface of the second three-way electromagnetic valve 7 along the airflow direction, and zero gas is generated after the zero gas passes through the tertiary filter 17; further, the inlet of the flow controller 13 is divided into two paths, and the two paths are respectively connected with the outlets of the first check valve 6 and the second check valve 10.
The utility model discloses on the above-mentioned basis that sets up two way air supply lines, further with the third interface of first three way solenoid valve 3, the third interface and the 12 intercommunications of silencer of second three way solenoid valve 7, the export of second secondary filter 9 is continuous with the export of first secondary filter 5 ware through adjusting needle valve 11.
Further, the primary filters 4 and 8 and the secondary filters 5 and 9 contain activated carbon and molecular sieves.
Further, the pressure of the needle valve 11 is adjusted to be not more than the activation pressure of the first check valve 6 or the second check valve 10.
Further, the high-temperature catalytic furnace comprises a heat-insulating jacket heating jacket, an internal reaction chamber, an oxidant and a catalyst.
The utility model discloses normal during operation, air compressor 1 is through 2 backs of freeze dryer, respectively through two three way solenoid valves 3, 7, two one-level filter 4, 8, two secondary filter 5, 9 and two check valves 6, 10 after, the merge through flow controller 13 and two parallelly connected high temperature catalysis stoves 14, 15, and spiral heat dissipation pipeline 16, tertiary filter 17 back output zero air.
The utility model has two groups of primary and secondary filters, and can realize the back-blowing function by switching the three-way electromagnetic valve; the specific implementation mode is as follows:
when the flow of the generated high-purity zero gas is low, the adjusting needle valve 11, the first interface and the second interface of the first three-way electromagnetic valve 3, and the second interface and the third interface of the second three-way electromagnetic valve 7 can be opened by closing the first one-way valve 6 and the second one-way valve 10; at this time, the air generated by the air compressor 1 passes through the freeze dryer 2, the first three-way electromagnetic valve 3, the first primary filter 4, the first secondary filter 5 and the adjusting needle valve 11, then reversely passes through the second secondary filter 9, the second primary filter 8 and the second three-way electromagnetic valve 7, and is discharged from the muffler 12; realizing the back flushing of the second primary filter 8 and the second secondary filter 9; meanwhile, the adjusting needle valve 11, the second and third interfaces of the first three-way electromagnetic valve 3, and the first and second interfaces of the second three-way electromagnetic valve 7 can be opened by closing the first and second one-way valves 6 and 10, and at this time, the air generated by the air compressor 1 passes through the freeze dryer 2, the second three-way electromagnetic valve 7, the second primary filter 8, the second secondary filter 9, and the adjusting needle valve 11, reversely passes through the first secondary filter 5, the first primary filter 4, and the first three-way electromagnetic valve 3, and is discharged from the muffler 12; and realizing back flushing of the first primary filter 4 and the first secondary filter 5.
The utility model discloses have the blowback function, enable the inside molecular sieve of filter and active carbon and air fully contact, realize producing high-purity zero air.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A zero gas generator, comprising: an air compressor;
the air compressor is connected with the freeze dryer, and the freeze dryer is connected with first ports of a first three-way electromagnetic valve and a second three-way electromagnetic valve which are connected in parallel;
the second interface of the first three-way electromagnetic valve is sequentially connected with a first primary filter, a first secondary filter, a first one-way valve, a flow controller, a high-temperature catalytic furnace, a spiral heat dissipation pipeline and a tertiary filter along the airflow direction;
a second primary filter, a second secondary filter, a second one-way valve, the flow controller, the high-temperature catalytic furnace, the spiral heat dissipation pipeline and the tertiary filter are sequentially connected to a second interface of the second three-way electromagnetic valve along the airflow direction;
and the third interface of the first three-way electromagnetic valve and the third interface of the second three-way electromagnetic valve are communicated with a silencer, and the outlet of the second secondary filter is connected with the outlet of the first secondary filter through an adjusting needle valve.
2. The zero gas generator according to claim 1,
closing the first one-way valve and the second one-way valve, and opening the regulating needle valve, the first interface and the second interface of the first three-way electromagnetic valve, and the second interface and the third interface of the second three-way electromagnetic valve to realize back flushing of the second primary filter and the second secondary filter;
and closing the first check valve and the second check valve, opening the adjusting needle valve, and realizing the back flushing of the first primary filter and the first secondary filter by the second interface and the third interface of the first three-way electromagnetic valve and the first interface and the second interface of the second three-way electromagnetic valve.
3. The zero gas generator of claim 1 or 2, wherein the primary filter and the secondary filter contain molecular sieves and activated carbon.
4. The zero gas generator according to claim 1, characterized in that the high-temperature catalytic furnace is composed of a first high-temperature catalytic furnace and a second high-temperature catalytic furnace connected in parallel.
5. The zero gas generator of claim 1, wherein the pressure of the regulator needle valve is no greater than the activation pressure of the first or second one-way valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922149672.XU CN211302584U (en) | 2019-12-04 | 2019-12-04 | Zero gas generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922149672.XU CN211302584U (en) | 2019-12-04 | 2019-12-04 | Zero gas generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211302584U true CN211302584U (en) | 2020-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922149672.XU Active CN211302584U (en) | 2019-12-04 | 2019-12-04 | Zero gas generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211302584U (en) |
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2019
- 2019-12-04 CN CN201922149672.XU patent/CN211302584U/en active Active
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