CN214171966U - Gas output device - Google Patents
Gas output device Download PDFInfo
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- CN214171966U CN214171966U CN202121726756.6U CN202121726756U CN214171966U CN 214171966 U CN214171966 U CN 214171966U CN 202121726756 U CN202121726756 U CN 202121726756U CN 214171966 U CN214171966 U CN 214171966U
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Abstract
The utility model discloses a gas output device, which comprises a gas production device, a main pipeline, a first branch, a second branch and a pipeline, wherein one end of the main pipeline is connected with the gas production device through the pipeline, the other end of the main pipeline is respectively connected with one end of the first branch and one end of the second branch through the pipeline, and the other end of the first branch and the other end of the second branch are both communicated with the atmosphere through the pipeline; the utility model has the advantages that: the device is provided with two output interfaces, so that the working efficiency is high; the gas pressure and flow output are automatically controlled, the matching performance is good, the error is small, and the precision is high; the reliability is good, and the output gas cleanliness is high.
Description
Technical Field
The utility model belongs to the technical field of pipe-line system check out test set, it is concrete, relate to a gas output device.
Background
When an aircraft pipeline system is designed and manufactured, system working state simulation test is needed to judge whether the aircraft pipeline system can meet the use requirements, and the gas output devices provide gas meeting the requirements for the pipeline system working state test.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned prior art, the utility model aims to overcome not enough among the prior art, adapt to reality needs to a simple structure is provided, degree of automation is high, and output parameter is accurate and the gas output device that the cleanliness is high.
In order to realize the purpose, the utility model discloses a technical scheme be: the utility model provides a gas output device, is including producing gas device, total pipeline, first branch, second branch and pipeline, total pipeline one end is passed through the pipeline and is connected with producing gas device, and the other end passes through the pipeline and is connected with first branch one end and second branch one end respectively, and the first branch other end and second branch other end all communicate the atmosphere through the pipeline, total pipeline includes electric stop valve I, pressure sensor I, primary filter, one-level, pressure sensor II, electric stop valve II, secondary pressure reducer, secondary filter and pressure sensor III, first branch includes flow sensor I, servo valve I, tertiary filter I, pressure sensor IV, electric stop valve III and first delivery outlet stop valve of the way, the second branch includes electric stop valve IV, tertiary filter II, pressure sensor V, servo valve II, flow sensor II, The device comprises a heater and a second way output port stop valve, wherein one end of an electric stop valve I is connected with a gas production device through a pipeline, the other end of the electric stop valve I is sequentially connected with a first-stage filter, a first-stage pressure reducer, an electric stop valve II, a second-stage pressure reducer and one end of a second-stage filter in series through a pipeline, a pressure sensor I is arranged between the electric stop valve I and the first-stage filter, a pressure sensor II is arranged between the first-stage pressure reducer and the electric stop valve II, a pressure sensor III is arranged between the second-stage pressure reducer and the second-stage filter, the other end of the second-stage filter is respectively connected with one end of a flow sensor I and one end of a flow sensor II through pipeline branches, the other end of the flow sensor I is sequentially connected with one end of a servo valve I and one end of a third-stage filter I in series through a pipeline, the other end of the third-stage filter I is respectively connected with one end of the first way output port stop valve and one end of the electric stop valve III through a pipeline, the other end of the first-way output port stop valve is a first-way output port, the pressure sensor IV is arranged between the third-way filter I and the first-way output port stop valve, the other end of the electric stop valve III is communicated with the atmosphere, the other end of the flow sensor II is sequentially connected with the servo valve II in series through a pipeline, one end of the heater is connected with one end of the third-way filter II, the other end of the third-way filter II is connected with one end of the second-way output port stop valve IV through a pipeline, the pressure sensor V is arranged between the third-way filter II and the second-way output port stop valve, the other end.
Further, the main pipeline is further provided with a safety valve I, the safety valve I is arranged between an electric stop valve II and a second-stage pressure reducer, the first branch is further provided with a safety valve II, the safety valve II is arranged between an electric stop valve III and a third-stage filter I, the second branch is further provided with a safety valve III and a temperature sensor, the safety valve III is arranged between the third-stage filter II and an electric stop valve IV, and the temperature sensor is arranged at the other end of the second-path output port stop valve and forms a second-path output port.
Further, the first-stage filter is a solid filter, the solid filter is used for removing solid particulate matters in the output gas, the second-stage filter is a liquid filter, the liquid filter is used for removing liquid matters in the output gas, the third-stage filter I and the third-stage filter II are drying filters, and the drying filters are used for removing water and gas matters in the output gas.
Furthermore, the pressure sensor IV and the flow sensor I are respectively used for monitoring the gas pressure and flow output by the first output port, monitoring information is fed back to the servo valve I, and the servo valve I automatically adjusts the gas pressure and flow output by the first output port to required values according to the feedback information; the pressure sensor V and the flow sensor II are respectively used for monitoring the gas pressure and flow output by the second output port and feeding monitoring information back to the servo valve II, the servo valve II automatically adjusts the gas pressure and flow output by the second output port to required values according to the feedback information, the temperature sensor is used for monitoring the gas temperature output by the second output port and feeding the monitoring information back to the heater, the heater automatically adjusts the gas temperature output by the second output port according to the feedback information so as to adjust and control the gas temperature of the second output port, the first-stage pressure reducer and the second-stage pressure reducer are used for carrying out graded pressure reduction on gas of a gas production device, the output gas pressure is stable and reliable, and the pressure sensor I is used for displaying the pressure of the gas production device; the pressure sensor II is used for displaying the pressure of the first-stage pressure reducer after the first pressure reduction, the pressure sensor III is used for displaying the pressure of the second-stage pressure reducer after the second pressure reduction, the safety valve I is used for overpressure protection of a main pipeline, and when the first-stage pressure reducer fails due to failure, the safety valve I is opened to release pressure; the safety valve II is used for overpressure protection of the first path of output port, and when the gas pressure of the first path of output port exceeds a safety value, the safety valve II is opened to release pressure; the safety valve III is used for overpressure protection of the second output port, when the gas pressure of the second output port exceeds a safety value, the safety valve III is opened to release pressure, and the electric stop valve I is used for connecting and disconnecting the main pipeline and the gas production device; the electric stop valve II is used for connecting and disconnecting a main pipeline; the first path of output port stop valve and the second path of output port stop valve are respectively used for connecting and closing the first path of output port and the second path of output port; the electric stop valve III is used for discharging air from the first path of output port, and when the first path of output port stops gas output, the electric stop valve III is electrified and opened to discharge residual gas in the first branch pipeline; and the electric stop valve IV is used for deflating the second output port, and after the second output port stops gas output, the electric stop valve IV is electrified and opened to discharge residual gas in the second branch pipeline.
Furthermore, the first output port and the second output port can work independently, and the two output ports can also work simultaneously.
Furthermore, the first output port outputs normal temperature gas, and the second output port outputs high temperature gas.
The utility model discloses in, produce the gas of gas device and reduce pressure by the one-level pressure reducer first time, after being reduced pressure by second grade pressure reducer second time again, export and the output of second way delivery outlet through first all the way.
The utility model discloses in, all through the tube coupling between gas production device, main pipeline, first shut and the second shut, and the inside intercommunication structure that is of connector between every part.
The utility model has the advantages that:
a) the device is provided with two output interfaces, so that the working efficiency is high;
b) the gas pressure and flow output are automatically controlled, the matching performance is good, the error is small, and the precision is high;
c) the reliability is good, and the output gas cleanliness is high.
Drawings
Fig. 1 is a schematic view of the connection structure of the present invention.
Wherein: the gas production device comprises a gas production device 1, an electric stop valve I2, a pressure sensor I3, a filter 4, a pressure reducer 5, a pressure sensor II 6, an electric stop valve II 7, a safety valve I8, a second-stage pressure reducer 9, a second-stage filter 10, a pressure sensor III 11, a flow sensor I12, a servo valve I13, a third-stage filter I14, a pressure sensor IV 15, a safety valve II 16, an electric stop valve III 17, an electric stop valve IV 18, a safety valve III 19, a third-stage filter II 20, a pressure sensor V21, a servo valve II 22, a flow sensor II 23, a heater 24, an output port stop valve 25 of a second path, an output port stop valve 26 of the first path and a temperature sensor 27.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
Examples
As shown in FIG. 1, the utility model provides a gas output device, including producing gas device 1, total pipeline, first branch, second branch and pipeline, total pipeline one end is passed through the pipeline and is connected with producing gas device 1, and the other end passes through the pipeline and is connected with first branch one end and second branch one end respectively, and the first branch other end and the second branch other end all communicate the atmosphere through the pipeline, total pipeline includes electric stop valve I2, pressure sensor I3, one-level filter 4, one-level pressure reducer 5, pressure sensor II 6, electric stop valve II 7, second grade pressure reducer 9, second grade filter 10 and pressure sensor III 11, first branch includes flow sensor I12, servo valve I13, tertiary filter I14, pressure sensor IV 15, electric stop valve 17 and the first delivery outlet stop valve 26 of the same kind, the second branch includes electric stop valve IV 18, A third-stage filter II 20, a pressure sensor V21, a servo valve II 22, a flow sensor II 23, a heater 24 and a second-stage output port stop valve 25, wherein one end of an electric stop valve I2 is connected with a gas production device 1 through a pipeline, the other end of the electric stop valve I2 is sequentially connected with one end of a first-stage filter 4, a first-stage pressure reducer 5, an electric stop valve II 7, a second-stage pressure reducer 9 and one end of a second-stage filter 10 in series through pipelines, a pressure sensor I3 is arranged between the electric stop valve I2 and the first-stage filter 4, a pressure sensor II 6 is arranged between the first-stage pressure reducer 5 and the electric stop valve II 7, a pressure sensor III 11 is arranged between the second-stage pressure reducer 9 and the second-stage filter 10, the other end of the second-stage filter 10 is respectively connected with one end of a flow sensor I12 and one end of the flow sensor II 23 through pipeline branches, the other end of the flow sensor I12 is sequentially connected with one end of the servo valve I13 and one end of the third-stage filter I14 in series through pipelines, the other end of the third filter I14 is respectively connected with one end of a first path of output port stop valve 26 and one end of an electric stop valve III 17 through pipelines, the other end of the first path of output port stop valve 26 is a first path of output port, a pressure sensor IV 15 is arranged between the third filter I14 and the first path of output port stop valve 26, the other end of the electric stop valve III 17 is communicated with the atmosphere, the other end of a flow sensor II 23 is sequentially connected with a servo valve II 22 in series through a pipeline, the heater 24 and the II 20 one end of tertiary filter, the II 20 other end of tertiary filter pass through the pipeline and are connected with second way delivery outlet stop valve 25 one end and electronic stop valve IV 18 one end respectively, and pressure sensor V21 locates between II 20 of tertiary filter and second way delivery outlet stop valve 25, and the electronic stop valve IV 18 other end communicates the atmosphere, and the second way delivery outlet stop valve 25 other end is the second way delivery outlet.
Preferably, the main pipeline is further provided with a safety valve I8, the safety valve I8 is arranged between an electric stop valve II 7 and a second-stage pressure reducer 9, the first branch pipeline is further provided with a safety valve II 16, the safety valve II 16 is arranged between an electric stop valve III 17 and a third-stage filter I14, the second branch pipeline is further provided with a safety valve III 19 and a temperature sensor 27, the safety valve III 19 is arranged between a third-stage filter II 20 and an electric stop valve IV 18, and the temperature sensor 27 is arranged at the other end of a second-path output port stop valve 25 and forms a second-path output port with the other end.
Preferably, the primary filter 4 is a solid filter, the secondary filter 10 is a liquid filter, and the tertiary filter i 14 and the tertiary filter ii 20 are both dry filters, the solid filter is used for removing solid particulate matters in the output gas, the liquid filter is used for removing liquid matters in the output gas, and the dry filters are used for removing water and gas matters in the output gas to ensure the cleanness of the output gas.
Preferably, the pressure sensor iv 15 and the flow sensor i 12 are respectively configured to monitor the pressure and the flow of the gas output from the first output port, and feed monitoring information (i.e., the pressure parameter and the flow parameter of the monitored gas) back to the servo valve i 13, and then the servo valve i 13 automatically adjusts the pressure and the flow of the gas output from the first output port to a required value according to the feedback information; the pressure sensor V21 and the flow sensor II 23 are respectively used for monitoring the pressure and the flow of the gas output by the second output port, and feeding monitoring information (namely the pressure parameter and the flow parameter of the monitored gas) back to the servo valve II 22, then the servo valve II 22 automatically adjusts the pressure and the flow of the gas output by the second output port to required values according to the feedback information, the temperature sensor 27 is used for monitoring the temperature of the gas output by the second output port and feeding the monitoring information (namely the temperature parameter of the monitored gas) back to the heater 24, the heater 24 automatically adjusts the temperature of the gas output by the second output port according to the feedback information so as to adjust and control the temperature of the gas output by the second output port, the first-stage pressure reducer 5 and the second-stage pressure reducer 9 are used for staged pressure reduction of the gas generating device 1, so that the pressure of the output gas is stable and reliable, the pressure sensor I3 is used for displaying the pressure of the gas production device 1; the pressure sensor II 6 is used for displaying the pressure of the primary pressure reducer 5 after the pressure is reduced for the first time, the pressure sensor III 11 is used for displaying the pressure of the secondary pressure reducer 9 after the pressure is reduced for the second time, the safety valve I8 is used for overpressure protection of a main pipeline, and when the primary pressure reducer 5 fails due to failure, the safety valve I8 is opened for pressure relief; the safety valve II 16 is used for overpressure protection of the first path of output port, and when the gas pressure of the first path of output port exceeds a safety value, the safety valve II 16 is opened to release pressure; the safety valve III 19 is used for overpressure protection of the second output port, when the gas pressure of the second output port exceeds a safety value, the safety valve III 19 is opened to release pressure, and the electric stop valve I2 is used for connecting and disconnecting the main pipeline and the gas production device 1; the electric stop valve II 7 is used for connecting and disconnecting a main pipeline; the first path output port stop valve 26 and the second path output port stop valve 25 are respectively used for connecting and closing the first path output port and the second path output port; the electric stop valve III 17 is used for air release of the first path of output port, and when the first path of output port stops gas output, the electric stop valve III 17 is powered on and opened to release residual gas in the first branch pipeline; and the electric stop valve IV 18 is used for deflating the second output port, and after the second output port stops gas output, the electric stop valve IV 18 is electrified and opened to discharge the residual gas in the second branch pipeline.
Preferably, the first output port and the second output port can work independently, and the two output ports can also work simultaneously.
Preferably, the first output port outputs normal temperature gas, and the second output port outputs high temperature gas.
The utility model discloses in, produce gas device 1's gas and be decompressed for the first time by one-level pressure reducer 5, after being decompressed for the second time by second grade pressure reducer 9 again, export and the output of second way delivery outlet through first all the way.
The utility model discloses a theory of operation does: selecting a gas production device 1 meeting the requirements, an electric stop valve I2, a pressure sensor I3, a primary filter 4, a primary pressure reducer 5, a pressure sensor II 6, an electric stop valve II 7, a safety valve I8, a secondary pressure reducer 9, a secondary filter 10, a pressure sensor III 11, a flow sensor I12, a servo valve I13, a tertiary filter I14, a pressure sensor IV 15, a safety valve II 16, an electric stop valve III 17, an electric stop valve IV 18, a safety valve III 19, a tertiary filter II 20, a pressure sensor V21, a servo valve II 22, a flow sensor II 23, a heater 24, a secondary output port stop valve 25, a first output port stop valve 26 and a temperature sensor 27, connecting the selected elements in sequence through pipelines, electrifying to open the electric stop valve I2, enabling high-pressure gas in the gas production device 1 to flow through the electric stop valve I2, The high-pressure gas reaches the primary pressure reducer 5, the pressure of the high-pressure gas is reduced for the first time after the high-pressure gas flows out of the primary pressure reducer 5, the reduced-pressure gas flows through the electric stop valve II 7 and then enters the secondary pressure reducer 9 for pressure reduction, the gas flowing out of the secondary pressure reducer 9 is reduced for the second time and then flows into the secondary filter 10, the gas flowing out of the secondary filter 10 is divided into two paths, one path of gas flows through the flow sensor I12, the servo valve I13 and the tertiary filter I14, and the first path of gas is output through the first path of output port after the first path of output port stop valve 26; and the other path of high-temperature gas flows through a flow sensor II 23 and a servo valve II 22 to reach a heater 24, the temperature of the gas flowing out of the heater 24 is increased, and the high-temperature gas flows through a three-stage filter II 20 and a second path output port stop valve 25 and then is output through a second path output port. Meanwhile, a pressure sensor IV 15 and a flow sensor I12 respectively monitor the gas pressure and flow output by the first output port, monitoring information is fed back to a servo valve I13, and the servo valve I13 automatically adjusts the gas pressure and flow of the output port to required values according to the feedback information; the pressure sensor V21 and the flow sensor II 23 respectively monitor the gas pressure and the flow output by the second output port, the monitoring information is fed back to the servo valve II 22, and the servo valve II 22 automatically adjusts the gas pressure and the flow of the output port to required values according to the feedback information; the temperature sensor 27 monitors the temperature of the gas output from the second outlet, and feeds the monitoring information back to the heater 24, and the heater 24 automatically adjusts the temperature of the gas at the outlet according to the feedback information.
The utility model discloses in, above-mentioned pressure sensor IV 15, flow sensor I12, servo valve I13, pressure sensor V21, flow sensor II 23, servo valve II 22, temperature sensor 27 and heater 24 all adopt conventional electric sensing control technique to realize the transmission and the feedback of its information.
The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (6)
1. The utility model provides a gas output device, includes and produces gas device (1), total pipeline, first branch road, second branch road and pipeline, total pipeline one end is passed through the pipeline and is connected with producing gas device (1), and the other end passes through the pipeline to be connected with first branch road one end and second branch road one end respectively, and the first branch road other end and second branch road other end all communicate atmosphere, its characterized in that through the pipeline: the main pipeline comprises an electric stop valve I (2), a pressure sensor I (3), a primary filter (4), a primary pressure reducer (5), a pressure sensor II (6), an electric stop valve II (7), a secondary pressure reducer (9), a secondary filter (10) and a pressure sensor III (11), the first branch comprises a flow sensor I (12), a servo valve I (13), a tertiary filter I (14), a pressure sensor IV (15), an electric stop valve III (17) and a first path output port stop valve (26), the second branch comprises an electric stop valve IV (18), a tertiary filter II (20), a pressure sensor V (21), a servo valve II (22), a flow sensor II (23), a heater (24) and a second path output port stop valve (25), one end of the electric stop valve I (2) is connected with the gas production device (1) through a pipeline, the other end passes through pipeline series connection one-level filter (4) in proper order, one-level pressure reducer (5), electronic stop valve II (7), second grade pressure reducer (9) and second grade filter (10) one end, pressure sensor I (3) are located between electronic stop valve I (2) and one-level filter (4), pressure sensor II (6) are located between one-level pressure reducer (5) and electronic stop valve II (7), pressure sensor III (11) are located between second grade pressure reducer (9) and second grade filter (10), second grade filter (10) other end passes through pipeline branch and is connected with I (12) one end of flow sensor and II (23) one end of flow sensor respectively, the I (12) other end of flow sensor passes through pipeline series connection servo valve I (13) and I (14) one end of third grade filter in proper order, I (14) other end of third grade filter passes through the pipeline respectively with first way delivery outlet stop valve (26) one end and electronic stop valve (17) one end Connect, the first way delivery outlet stop valve (26) other end is the first way delivery outlet, pressure sensor IV (15) are located between tertiary filter I (14) and the first way delivery outlet stop valve (26), electronic stop valve III (17) other end intercommunication atmosphere, flow sensor II (23) other end is through pipeline series connection servo valve II (22) in proper order, heater (24) and tertiary filter II (20) one end, tertiary filter II (20) other end is connected with second way delivery outlet stop valve (25) one end and electronic stop valve IV (18) one end respectively through the pipeline, pressure sensor V (21) are located between tertiary filter II (20) and second way delivery outlet stop valve (25), electronic IV stop valve (18) other end intercommunication atmosphere, the second way delivery outlet stop valve (25) other end is the second way delivery outlet.
2. The gas delivery device of claim 1, wherein: the main pipeline is also provided with a safety valve I (8), the safety valve I (8) is arranged between an electric stop valve II (7) and a second-stage pressure reducer (9), the first branch is also provided with a safety valve II (16), the safety valve II (16) is arranged between an electric stop valve III (17) and a third-stage filter I (14), the second branch is also provided with a safety valve III (19) and a temperature sensor (27), the safety valve III (19) is arranged between a third-stage filter II (20) and an electric stop valve IV (18), and the temperature sensor (27) is arranged at the other end of a second-way output port stop valve (25) and forms a second-way output port.
3. The gas delivery device of claim 1, wherein: the primary filter (4) is a solid filter and used for removing solid particle substances in the output gas, the secondary filter (10) is a liquid filter and used for removing liquid substances in the output gas, and the tertiary filter I (14) and the tertiary filter II (20) are both drying filters and used for removing water and gas substances in the output gas.
4. The gas delivery device of claim 2, wherein: the pressure sensor IV (15) and the flow sensor I (12) are respectively used for monitoring the gas pressure and flow output by the first output port, monitoring information is fed back to the servo valve I (13), and the servo valve I (13) automatically adjusts the gas pressure and flow output by the first output port to required values according to the feedback information; the pressure sensor V (21) and the flow sensor II (23) are respectively used for monitoring the gas pressure and the gas flow output by the second output port, the monitoring information is fed back to the servo valve II (22), the servo valve II (22) automatically adjusts the gas pressure and the flow output by the output port of the second path to the required values according to the feedback information, the temperature sensor (27) is used for monitoring the temperature of the gas output by the second output port, and feeds monitoring information back to the heater (24), the heater (24) automatically adjusts the temperature of the gas output by the second output port according to the feedback information, so as to adjust and control the temperature of the gas at the output port of the second path, the first-stage pressure reducer (5) and the second-stage pressure reducer (9) are used for reducing the pressure of the gas generating device (1) in a grading way, so that the pressure of the output gas is stable and reliable, the pressure sensor I (3) is used for displaying the pressure of the gas production device (1); the pressure sensor II (6) is used for displaying the pressure of the first-stage pressure reducer (5) after pressure reduction for the first time, the pressure sensor III (11) is used for displaying the pressure of the second-stage pressure reducer (9) after pressure reduction for the second time, the safety valve I (8) is used for overpressure protection of a main pipeline, and when the first-stage pressure reducer (5) fails due to failure, the safety valve I (8) is opened for pressure reduction; the safety valve II (16) is used for overpressure protection of the first path of output port, and when the gas pressure of the first path of output port exceeds a safety value, the safety valve II (16) is opened to release pressure; the safety valve III (19) is used for overpressure protection of the second output port, when the gas pressure of the second output port exceeds a safety value, the safety valve III (19) is opened to release pressure, and the electric stop valve I (2) is used for connecting and disconnecting the main pipeline and the gas production device (1); the electric stop valve II (7) is used for connecting and disconnecting a main pipeline; the first path of output port stop valve (26) and the second path of output port stop valve (25) are respectively used for connecting and closing the first path of output port and the second path of output port; the electric stop valve III (17) is used for deflating the first path of output port, and when the first path of output port stops gas output, the electric stop valve III (17) is powered on and opened to discharge residual gas in the first branch pipeline; and the electric stop valve IV (18) is used for deflating the second output port, and after the second output port stops gas output, the electric stop valve IV (18) is electrified and opened to discharge the residual gas in the second branch pipeline.
5. The gas delivery device of claim 1, wherein: the first output port and the second output port can work independently, and the two output ports can also work simultaneously.
6. The gas delivery device of claim 1, wherein: the first output port outputs normal temperature gas, and the second output port outputs high temperature gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121726756.6U CN214171966U (en) | 2021-07-28 | 2021-07-28 | Gas output device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121726756.6U CN214171966U (en) | 2021-07-28 | 2021-07-28 | Gas output device |
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| Publication Number | Publication Date |
|---|---|
| CN214171966U true CN214171966U (en) | 2021-09-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121726756.6U Active CN214171966U (en) | 2021-07-28 | 2021-07-28 | Gas output device |
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| CN (1) | CN214171966U (en) |
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2021
- 2021-07-28 CN CN202121726756.6U patent/CN214171966U/en active Active
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