CN216117498U - Integrated gas analyzer for stabilizing oxygen content in space - Google Patents
Integrated gas analyzer for stabilizing oxygen content in space Download PDFInfo
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- CN216117498U CN216117498U CN202121502725.2U CN202121502725U CN216117498U CN 216117498 U CN216117498 U CN 216117498U CN 202121502725 U CN202121502725 U CN 202121502725U CN 216117498 U CN216117498 U CN 216117498U
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Abstract
The utility model provides an integrated gas analyzer for stabilizing the oxygen content in a space. The integrated gas analyzer for stabilizing the oxygen content in the space comprises a shell; an oxygen sensor mounted within the enclosure; the vacuum air suction pump is arranged in the shell, and an air inlet of the vacuum air suction pump is connected with an air outlet of the oxygen sensor through a pipeline; a PID controller mounted within the enclosure; a display mounted on the housing; the signal converter is arranged in the shell, and the PID controller, the display and the oxygen sensor are electrically connected with the signal converter; and (4) automatically controlling the proportional valve. The integrated gas analyzer for stabilizing the oxygen content in the space has the advantages of stabilizing the oxygen content in the space and avoiding nitrogen waste.
Description
Technical Field
The utility model relates to the technical field of gas analysis equipment, in particular to an integrated gas analyzer for stabilizing oxygen content in a space.
Background
In the industries of SMT (circuit board patch welding), glove box, lead welding furnace and the like, a required process environment needs a working space with less oxygen (generally, the requirement on oxygen content is different according to different processes because the too high oxygen can oxidize workpieces, and the oxygen content is generally required to be 0.01-0.1% by volume percent), and the specific implementation mode is that inert gases such as nitrogen, helium, argon and the like are filled into one space to replace oxygen in the space, so that the oxygen in the space is controlled to meet the requirement of a user. The content of nitrogen in the air reaches more than 78 percent, so that pure nitrogen is easy to obtain, the price of the nitrogen is relatively low, and most processes in the market adopt the nitrogen as replacement gas.
In the traditional use, oxygen is controlled in space, an oxygen analyzer is often configured to monitor the oxygen content in the space, the oxygen content is high, a nitrogen inlet valve is manually opened, and the nitrogen inlet amount is increased; thereby adjusting the oxygen content in the space. The oxygen content can be changed along with the sealing performance of the space device, the number of the workpieces in the space is changed, and the like, and in order to ensure the production quality, a nitrogen inlet valve is opened greatly in a factory to ensure that the oxygen content in the space meets the requirement. This results in unstable oxygen content and also in waste of nitrogen.
Therefore, there is a need to provide a new integrated gas analyzer for stabilizing the oxygen content in the space to solve the above-mentioned problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an integrated gas analyzer capable of stabilizing the oxygen content in a space and avoiding nitrogen waste.
In order to solve the above technical problems, the present invention provides an integrated gas analyzer for stabilizing the oxygen content in a space, comprising: a housing; an oxygen sensor mounted within the enclosure; the vacuum air suction pump is arranged in the shell, and an air inlet of the vacuum air suction pump is connected with an air outlet of the oxygen sensor through a pipeline; a PID controller mounted within the enclosure; a display mounted on the housing; the signal converter is arranged in the shell, and the PID controller, the display and the oxygen sensor are electrically connected with the signal converter; and the automatic control proportional valve is installed in the shell and is electrically connected with the PID controller.
Preferably, a sampling gas inlet is arranged on the casing, and a gas inlet of the oxygen sensor is connected with one end of the sampling gas inlet through a pipeline.
Preferably, a sampling gas outlet is formed in the casing, and a gas outlet of the vacuum suction pump is connected with one end of the sampling gas outlet through a pipeline.
Preferably, a pure nitrogen inlet is formed in the machine shell, and an air inlet of the automatic control proportional valve is connected with one end of the pure nitrogen inlet through a pipeline.
Preferably, a pure nitrogen outlet is formed in the machine shell, and an air outlet of the automatic control proportional valve is connected with one end of the pure nitrogen outlet through a pipeline.
Compared with the related art, the integrated gas analyzer for stabilizing the oxygen content in the space has the following beneficial effects:
the utility model provides an integrated gas analyzer for stabilizing the oxygen content in a space, which can extract and detect the gas in an oxygen control space in real time, and dynamically adjust the amount of nitrogen introduced into the oxygen control space according to the detection result, so that the oxygen content in the space can be stabilized, the production process is ensured, the product quality is improved, and the quality is ensured, and meanwhile, a proper amount of nitrogen is introduced, so that the waste of the nitrogen is avoided.
Drawings
FIG. 1 is a schematic diagram of a preferred embodiment of an integrated gas analyzer for stabilizing the oxygen content in a space in accordance with the present invention;
FIG. 2 is a schematic circuit diagram of a preferred embodiment of the present invention for stabilizing the oxygen content of an integrated gas analyzer in space;
FIG. 3 is an enlarged schematic view of portion A shown in FIG. 2;
FIG. 4 is an enlarged schematic view of portion B shown in FIG. 2;
FIG. 5 is an enlarged schematic view of portion C shown in FIG. 2;
FIG. 6 is an enlarged schematic view of portion D of FIG. 2;
fig. 7 is an enlarged schematic view of a portion E shown in fig. 2.
Reference numbers in the figures: 1. a housing; 2. an oxygen sensor; 3. a vacuum getter pump; 4. a PID controller; 5. a display; 6. a signal converter; 7. and (4) automatically controlling the proportional valve.
Detailed Description
The utility model is further described with reference to the following figures and embodiments.
Referring to fig. 1-7, fig. 1 is a schematic diagram of a preferred embodiment of an integrated gas analyzer for stabilizing the oxygen content in a space according to the present invention; FIG. 2 is a schematic circuit diagram of a preferred embodiment of the present invention for stabilizing the oxygen content of an integrated gas analyzer in space; FIG. 3 is an enlarged schematic view of portion A shown in FIG. 2; FIG. 4 is an enlarged schematic view of portion B shown in FIG. 2; FIG. 5 is an enlarged schematic view of portion C shown in FIG. 2; FIG. 6 is an enlarged schematic view of portion D of FIG. 2; fig. 7 is an enlarged schematic view of a portion E shown in fig. 2. An integrated gas analyzer for stabilizing oxygen content in a space comprising: a housing 1; the oxygen sensor 2 is arranged in the machine shell 1, and the pressure sensor 2 is used for detecting the oxygen content in the oxygen control space; the vacuum air suction pump 3 is installed in the machine shell 1, and an air inlet of the vacuum air suction pump 3 is connected with an air outlet of the oxygen sensor 2 through a pipeline; a PID controller 4, wherein the PID controller 4 is arranged in the shell 1; a display 5, wherein the display 5 is arranged on the machine shell 1; the signal converter 6 is installed in the machine shell 1, and the PID controller 4, the display 5 and the oxygen sensor 2 are all electrically connected with the signal converter 6; the automatic control proportional valve 7, the automatic control proportional valve 7 is installed in the casing 1, the automatic control proportional valve 7 with PID controller 4 electric connection.
Be provided with the gaseous entry of sampling on the casing 1, oxygen sensor 2's air inlet pass through the pipeline with the one end of the gaseous entry of sampling is connected, and the other end of the gaseous entry of sampling passes through the pipeline and stretches into to accuse oxygen space for oxygen sensor 2 and accuse oxygen space intercommunication can take out and pass through oxygen sensor 2 with the gas in the accuse oxygen space when vacuum suction pump 3 moves.
The machine shell 1 is provided with a sampling gas outlet, the gas outlet of the vacuum getter pump 3 is connected with one end of the sampling gas outlet through a pipeline, and gas pumped out from the oxygen control space is finally discharged through the sampling gas outlet.
The automatic control device is characterized in that a pure nitrogen inlet is formed in the casing 1, an air inlet of the automatic control proportional valve is connected with one end of the pure nitrogen inlet through a pipeline, and the other end of the pure nitrogen inlet is connected with an air outlet of a nitrogen source (a nitrogen tank, a nitrogen bottle and the like) through a pipeline.
The machine shell 1 is provided with a pure nitrogen outlet, the air outlet of the automatic control proportional valve is connected with one end of the pure nitrogen outlet through a pipeline, and the other end of the pure nitrogen outlet extends into the oxygen control space through a pipeline.
The hypoxic space required by the user is replaced by using nitrogen, the oxygen content of the nitrogen in a common nitrogen bottle and the nitrogen vaporized by a liquid nitrogen storage tank is about 1.5ppm-10ppm (the oxygen content of high-purity nitrogen is 1.5ppm, and the oxygen content of common nitrogen is less than 10 ppm), the replacement mode is that one end is used for feeding the nitrogen, and the other end farthest from the nitrogen feeding end is used for discharging the nitrogen, when the equipment runs, because the product feeding port and the product discharging port cannot be sealed by 100%, and other structural members in the space are more or less leaked, therefore, to maintain the hypoxic environment in the space, the nitrogen needs to be continuously filled, and in order to stabilize the oxygen content in the space and avoid excessive nitrogen waste, in the embodiment, please refer to fig. 1 again, firstly, the gas in the hypoxic space required by the user is sampled and monitored: starting a vacuum air suction pump 3 to go far, sucking gas in an oxygen control space into an oxygen sensor 2, wherein the suction flow rate is 0.4L/min, the oxygen sensor 2 transmits a signal of oxygen content detected in real time to a signal converter 6, the signal converter 6 processes the signal into a signal which can be identified by a PID controller 4, then the PID controller 4 compares the signal with the oxygen content set by a user after receiving the signal, when the oxygen content acquired in real time is higher than a user set value, the PID controller 4 automatically sends a signal to an automatic control proportional valve 7, the opening of the valve is increased, the nitrogen filling amount is increased, and when the oxygen content acquired in real time is lower than the user set value, the nitrogen filling amount is reduced; by using the control mode of the PID controller 4, the oxygen value in the oxygen control space finally tends to be stable, and excessive fluctuation can not occur.
Compared with the related art, the integrated gas analyzer for stabilizing the oxygen content in the space has the following beneficial effects:
the utility model provides an integrated gas analyzer for stabilizing the oxygen content in a space, which is characterized in that an oxygen sensor 2, a vacuum air suction pump 3, a PID controller 4, a display 5, a signal converter 6 and an automatic control proportional valve are arranged, so that the gas in the oxygen control space can be extracted in real time and detected, the nitrogen amount introduced into the oxygen control space is dynamically adjusted according to the detection result, the oxygen content in the space can be stabilized on one side, the production process is ensured, the product quality is improved, and meanwhile, a proper amount of nitrogen is introduced, and the waste of the nitrogen is avoided.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (5)
1. An integrated gas analyzer for stabilizing oxygen content in a space, comprising:
a housing;
an oxygen sensor mounted within the enclosure;
the vacuum air suction pump is arranged in the shell, and an air inlet of the vacuum air suction pump is connected with an air outlet of the oxygen sensor through a pipeline;
a PID controller mounted within the enclosure;
a display mounted on the housing;
the signal converter is arranged in the shell, and the PID controller, the display and the oxygen sensor are electrically connected with the signal converter;
and the automatic control proportional valve is installed in the shell and is electrically connected with the PID controller.
2. The integrated gas analyzer for stabilizing the oxygen content in the space according to claim 1, wherein the housing is provided with a sampling gas inlet, and the gas inlet of the oxygen sensor is connected with one end of the sampling gas inlet through a pipeline.
3. The integrated gas analyzer for stabilizing the oxygen content in the space according to claim 1, wherein the housing is provided with a sampling gas outlet, and the gas outlet of the vacuum getter pump is connected with one end of the sampling gas outlet through a pipeline.
4. The integrated gas analyzer for stabilizing the oxygen content in the space according to claim 1, wherein the casing is provided with a pure nitrogen inlet, and the air inlet of the automatic control proportional valve is connected with one end of the pure nitrogen inlet through a pipeline.
5. The integrated gas analyzer for stabilizing the oxygen content in the space according to claim 1, wherein the casing is provided with a pure nitrogen outlet, and the gas outlet of the automatic control proportional valve is connected with one end of the pure nitrogen outlet through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121502725.2U CN216117498U (en) | 2021-07-04 | 2021-07-04 | Integrated gas analyzer for stabilizing oxygen content in space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121502725.2U CN216117498U (en) | 2021-07-04 | 2021-07-04 | Integrated gas analyzer for stabilizing oxygen content in space |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216117498U true CN216117498U (en) | 2022-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121502725.2U Active CN216117498U (en) | 2021-07-04 | 2021-07-04 | Integrated gas analyzer for stabilizing oxygen content in space |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216117498U (en) |
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2021
- 2021-07-04 CN CN202121502725.2U patent/CN216117498U/en active Active
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