CN216747605U - Corrosive gas analysis and treatment device - Google Patents
Corrosive gas analysis and treatment device Download PDFInfo
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- CN216747605U CN216747605U CN202122318675.9U CN202122318675U CN216747605U CN 216747605 U CN216747605 U CN 216747605U CN 202122318675 U CN202122318675 U CN 202122318675U CN 216747605 U CN216747605 U CN 216747605U
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Abstract
The utility model discloses a corrosive gas analysis and treatment device, which comprises: the device comprises a purge gas supply device, a sample gas supply device and a vacuumizing device, wherein the purge gas supply device is respectively communicated with an inlet and an outlet of gas analysis equipment through a pipeline provided with a control valve and is used for providing purge gas for purging the pipeline communicated with the purge gas supply device and the inlet and the outlet of the gas analysis equipment; the sample gas supply device is communicated with an inlet of the gas analysis equipment through a pipeline; the vacuumizing device is respectively communicated with the sample gas supply device and the inlet and the outlet of the gas analysis equipment through pipelines provided with control valves. The utility model adopts the pipeline provided with the corresponding control valve to switch the communication state among the purge gas supply device, the sample gas supply device and the vacuumizing device, realizes complete purging and replacement before analysis through purge gas purging, sample gas replacement and vacuumizing replacement, and achieves accurate analysis.
Description
Technical Field
The utility model relates to a gas analysis device, in particular to a corrosive gas analysis processing device.
Background
When corrosive gas is analyzed daily, purging is carried out before entering an analysis instrument, and at present, sample gas is used for purging after purging is carried out by adopting purge gas in normal sample introduction, so that the problems of incomplete purging and incomplete conversion exist, and the effect is more unsatisfactory especially for viscous gas. The residual analysis pipeline is caused, and the pipeline is corroded and the instrument is damaged after a long time.
The purge gas purge is used for an extended period of time without any judgment criteria, and at all times the line can be removed or switched to another sample. The unclean air displacement also affects the accuracy of the analysis result.
SUMMERY OF THE UTILITY MODEL
In order to solve the above technical problems, the present invention provides an etching gas analyzing and processing apparatus.
In order to achieve the purpose, the technical scheme of the utility model is as follows:
the corrosive gas analysis processing device comprises:
the purge gas supply device is respectively communicated with the inlet and the outlet of the gas analysis equipment through a pipeline provided with a control valve and is used for providing purge gas for purging the pipeline communicated with the purge gas supply device and the inlet and the outlet of the gas analysis equipment;
the sample gas supply device is communicated with the inlet of the gas analysis equipment through a pipeline and is used for providing sample gas;
and the vacuumizing device is respectively communicated with the sample gas supply device and the inlet and the outlet of the gas analysis equipment through a pipeline provided with a control valve and is used for vacuumizing the pipeline communicated with the vacuumizing device.
The corrosive gas analysis and treatment device can realize complete purging and replacement before analysis by purging the purge gas of the purge gas supply device, replacing the sample gas of the sample gas supply device and vacuumizing and replacing the vacuumizing device, so that the analysis is accurate; and the analysis pipeline is not remained after the analysis, the sample gas supply device is safely dismantled, and the next analysis is convenient.
On the basis of the technical scheme, the following improvements can be made:
preferably, the purge gas supply device is communicated with the inlet of the gas analysis equipment through a pipeline which is sequentially provided with a first pressure regulating valve and a first control valve, and the inlet and the outlet of the gas analysis equipment are communicated through a pipeline which is provided with a second control valve.
By adopting the preferable scheme, the inlet and the outlet of the gas analysis equipment are purged by adopting the purge gas supply device.
Preferably, the sample gas supply device is communicated with the inlet of the gas analysis equipment through a pipeline provided with a second pressure regulating valve.
With the preferred arrangement, the sample gas supply means is adapted to supply sample gas to the gas analysis apparatus.
Preferably, the purge gas supply means is communicated with the sample gas supply means through a pipeline provided with a first pressure regulating valve, a first control valve and a second pressure regulating valve in this order.
By adopting the preferable scheme, the output pipeline of the sample gas supply device is blown by the blowing gas supply device, so that the sample gas is prevented from being polluted when being output from the output pipeline.
As the preferred scheme, install the vacuum pressure gauge that is used for detecting this pipeline real-time pressure on the output line of evacuating device.
By adopting the preferable scheme, the vacuum pressure gauge can know the internal pressure of the pipeline in real time.
Preferably, the vacuum pumping device is communicated with an inlet of the gas analysis equipment through a pipeline provided with a third control valve;
meanwhile, the vacuumizing device is communicated with the sample gas supply device through a pipeline which is sequentially provided with a third control valve and a second pressure regulating valve.
By adopting the preferable scheme, the vacuumizing device can vacuumize the pipelines from the sample gas supply device to the inlet and the outlet of the gas analysis equipment, so that the sample gas is further prevented from being polluted when being output from the output pipeline.
Preferably, a first pipeline filter is further arranged between the first pressure regulating valve and the first control valve, and the first pipeline filter is used for filtering gas flowing through the pipeline.
Adopt above-mentioned preferred scheme, filter the scavenging gas of purge gas air feeder output, avoid the granule that the scavenging gas brought to influence gas analysis equipment's performance.
Preferably, a second pipeline filter is further arranged between the second pressure regulating valve and the third control valve, and the second pipeline filter is used for filtering gas flowing through the pipeline.
By adopting the preferable scheme, the sample gas output by the sample gas supply device is filtered, and the influence of particles brought by the sample gas on the performance of the gas analysis equipment is avoided.
Preferably, a pipeline purifier is further arranged between the second pipeline filter and the third control valve, and the pipeline purifier is used for performing water removal treatment on gas flowing through the pipeline.
By adopting the preferable scheme, the pipeline purifier is utilized to remove moisture, so that the corrosion of the pipeline, the valve and the gas analysis equipment at the rear end caused by excessive moisture in the sample gas is avoided.
Preferably, the method further comprises the following steps: and the tail gas collection and treatment device is communicated with an outlet of the gas analysis equipment through a pipeline provided with a fourth control valve and is used for collecting and treating tail gas.
By adopting the preferable scheme, the waste gas at the outlet of the gas analysis equipment or the purge gas for purging the pipeline is safely discharged, so that the atmospheric pollution is prevented.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a corrosive gas analysis processing apparatus according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a corrosive gas analysis processing apparatus (having a fifth control valve) according to an embodiment of the present invention.
Wherein: 1-purge gas supply device, 2-sample gas supply device, 3-vacuumizing device, 4-gas analysis device, 5-tail gas collection and treatment device, 61-first pressure regulating valve, 62-second pressure regulating valve, 71-first control valve, 72-second control valve, 73-third control valve, 74-fourth control valve, 75-fifth control valve, 8-vacuum pressure gauge, 91-first pipeline filter, 92-second pipeline filter and 10-pipeline purifier.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
Meanwhile, the expressions "first", "second", etc. are used only for the purpose of distinguishing a plurality of configurations, and do not limit the order between the configurations or other features.
Also, the expression "comprising" an element is an expression of "open" which merely means that there is a corresponding component, and should not be interpreted as excluding additional components.
In order to achieve the object of the present invention, in some embodiments of the corrosive gas analyzing and processing apparatus, as shown in fig. 1, the corrosive gas analyzing and processing apparatus includes:
the device comprises a purge gas supply device 1, wherein the purge gas supply device 1 is respectively communicated with an inlet and an outlet of a gas analysis device 4 through a pipeline provided with a control valve and is used for providing purge gas for purging the pipeline communicated with the purge gas supply device and the inlet and the outlet of the gas analysis device 4;
the sample gas supply device 2 is communicated with an inlet of the gas analysis equipment 4 through a pipeline, and is used for providing sample gas;
and the vacuumizing device 3 is respectively communicated with the sample gas supply device 2 and the inlet and the outlet of the gas analysis equipment 4 through pipelines provided with control valves, and is used for vacuumizing the pipelines communicated with the vacuumizing device 3.
The evacuation device 3 may be, but is not limited to, a vacuum pump.
The purge gas may be, but is not limited to, helium.
The corrosive gas analysis processing device adopts a pipeline provided with a corresponding control valve to switch the communication state among the purge gas supply device 1, the sample gas supply device 2 and the vacuumizing device 3, and can realize complete purge and replacement before analysis through purge gas purge, sample gas replacement and vacuumizing replacement to achieve accurate analysis; and the analysis pipeline is not remained after the analysis, the sample gas supply device 2 is safely dismantled, and the next analysis is convenient.
In order to further optimize the effect of the present invention, in other embodiments, the rest of the features are the same, except that the purge gas supply means 1 is communicated with the inlet of the gas analyzing device 4 through a pipeline provided with the first pressure regulating valve 61 and the first control valve 71 in sequence, and the inlet and the outlet of the gas analyzing device 4 are communicated through a pipeline provided with the second control valve 72.
With the adoption of the embodiment, the following beneficial effects are achieved: the inlet and outlet of the gas analysis apparatus 4 are purged using the purge gas supply means 1. The first pressure regulating valve 61 is provided with a pressure gauge.
Further, in addition to the above embodiment, the sample gas supply means 2 communicates with the inlet of the gas analysis apparatus 4 through a pipe provided with the second pressure regulating valve 62.
With the adoption of the embodiment, the following beneficial effects are achieved: the sample gas supply means 2 is used to supply sample gas to the gas analysis apparatus 4. Wherein the second pressure regulating valve 62 is provided with a pressure gauge.
Further, in the above embodiment, the purge gas supply means 1 communicates with the sample gas supply means 2 through a pipe line in which the first pressure regulating valve 61, the first control valve 71, and the second pressure regulating valve 62 are provided in this order.
With the adoption of the embodiment, the following beneficial effects are achieved: the output pipeline of the sample gas supply device 2 is blown by the blowing gas supply device 1, so that the sample gas is prevented from being polluted when being output from the output pipeline.
Further, on the basis of the above embodiment, a vacuum pressure gauge 8 for detecting the real-time pressure of the output pipeline of the vacuum pumping device 3 is installed.
With the adoption of the embodiment, the following beneficial effects are achieved: the vacuum pressure gauge 8 can know the pressure inside the pipeline in real time.
Further, on the basis of the above embodiment, the vacuum extractor 3 communicates with the inlet of the gas analysis apparatus 4 through a pipe provided with the third control valve 73;
meanwhile, the vacuum-pumping means 3 is communicated with the sample gas supply means 2 through a pipe line provided with a third control valve 73 and a second pressure regulating valve 62 in this order.
With the adoption of the embodiment, the following beneficial effects are achieved: the vacuum-pumping device 3 can vacuum the sample gas from the sample gas supply device 2 to the inlet and outlet of the gas analysis device 4, so as to further ensure that the sample gas is not polluted when being output from the output pipeline.
Further, in the above embodiment, a first line filter 91 is further provided between the first pressure regulating valve 61 and the first control valve 71, and the first line filter 91 filters gas flowing through the line.
With the adoption of the embodiment, the following beneficial effects are achieved: the scavenging gas output by the scavenging gas supply device 1 is filtered, so that the influence of particles brought by the scavenging gas on the performance of the gas analysis equipment 4 is avoided.
Further, in the above embodiment, a second duct filter 92 is provided between the second pressure regulating valve 62 and the third control valve 73, and the second duct filter 92 filters gas flowing through the duct.
With the adoption of the embodiment, the following beneficial effects are achieved: the sample gas output by the sample gas supply device 2 is filtered, so that the influence of particles brought by the sample gas on the performance of the gas analysis equipment 4 is avoided.
Further, in addition to the above embodiment, a pipeline purifier 10 is further provided between the second pipeline filter 92 and the third control valve 73, and the pipeline purifier 10 is configured to perform a water removal process on the gas flowing through the pipeline.
With the adoption of the embodiment, the following beneficial effects are achieved: the pipeline purifier 10 is used for removing moisture (avoiding removing other impurities in the sample gas), and preventing the sample gas from being corroded by excessive moisture on the rear-end pipeline, the valve and the gas analysis equipment 4.
Further, in addition to the above embodiment, the present invention further includes: and the tail gas collection and treatment device 5 is communicated with an outlet of the gas analysis equipment 4 through a pipeline provided with a fourth control valve 74, and is used for collecting and treating tail gas.
With the adoption of the embodiment, the following beneficial effects are achieved: and the waste gas at the outlet of the gas analysis equipment 4 or the purge gas for purging the pipeline is safely discharged, so that the atmospheric pollution is prevented.
Further, the tail gas collecting and processing device 5 can collect and process corrosive gas, if acidic corrosive gas is absorbed by alkali liquor, alkaline corrosive gas is absorbed by dilute acid.
For ease of understanding, a specific embodiment is described below.
The first embodiment is as follows:
the corrosive gas analyzing and processing device comprises a purge gas supply device 1, a sample gas supply device 2, a vacuumizing device 3 and an exhaust gas collecting and processing device 5 which are connected through pipelines as shown in figure 1, wherein the pipelines are provided with a first pressure regulating valve 61 with a pressure gauge, a second pressure regulating valve 62, a first control valve 71, a second control valve 72, a third control valve 73, a fourth control valve 74, a first pipeline filter 91, a second pipeline filter 92, a vacuum pressure gauge 8 and a pipeline purifier 10.
The first and second pressure adjusting valves 61 and 62 are pressure reducing valves.
The first control valve 71, the second control valve 72, the third control valve 73, and the fourth control valve 74 are diaphragm valves.
Because corrosive gas is analyzed, the valve body of all valves is made of clean stainless steel, namely SUS 316; the valve core is made of Hastelloy; the analysis pipeline adopts a quarter-inch EP grade clean pipeline; in order to ensure sealing, the valve is connected with the pipeline in a VCR way; the purge gas is high-purity He (helium), so that pollution brought by other types of purge gas is avoided.
In order to protect the gas analysis apparatus 4, the filter diameters of the first pipe filter 91 and the second pipe filter 92 are selected to be 0.003um, so as to prevent particles brought by the sample gas or the purge gas from affecting the performance of the analysis apparatus.
The vacuum pressure gauge 8 adopts an electronic display meter and can reach the vacuum degree of 10pa by matching with the vacuumizing device 3.
The following describes the operation of the corrosive gas analysis processing apparatus according to an embodiment of the present invention, wherein the valves not mentioned are in a closed state:
1) a purge gas purging step;
before a sample test, connecting a sample gas supply device 2 and a purge gas supply device 1, firstly purging with purge gas, opening the purge gas supply device 1, adjusting the pressure of a first pressure regulating valve 61 to 0.2MPa, opening a first control valve 71, a second pressure regulating valve 62, a second control valve 72 and a fourth control valve 74, and closing the rest valves;
the purge gas purges the pipeline passing through the first pressure regulating valve 61, the first control valve 71, the second pressure regulating valve 62, the second control valve 72 and the fourth control valve 74;
closing the fourth control valve 74, closing the first control valve 71 after adjusting the pressure of the first pressure regulating valve 61 to 0.2MPa, opening the fourth control valve 74, and discharging the purge gas;
repeating the above steps for 2-3 times.
2) Vacuumizing;
the vacuum pumping apparatus 3 is started, the first control valve 71 and the fourth control valve 74 are closed, the second pressure regulating valve 62, the second control valve 72 and the third control valve 73 are opened, and when the vacuum pressure gauge 8 indicates that the vacuum degree is less than 10pa, the third control valve 73 is closed, and the vacuum pumping apparatus 3 is stopped.
3) Sample gas sampling;
the sample gas supply means 2 is opened, the fourth control valve 74 is opened, and the pressure of the second pressure regulating valve 62 is adjusted to 0.1MPa, and then the gas enters the gas analyzing apparatus 4 for testing.
And after the analysis is finished, evacuating the residual gas to the tail gas collecting and processing device 5, closing the valve of the sample gas supply device 2, and opening the second control valve 72 until the pipeline has no pressure.
4) Ending;
closing the fourth control valve 74, opening the first control valve 71, closing the second pressure regulating valve 62 after the pressure of the second pressure regulating valve 62 shows 0.2MPa, opening the fourth control valve 74, closing the fourth control valve 74 after the second pressure regulating valve 62 is exhausted to no pressure in the pipeline, starting the vacuumizing device 3, opening the third control valve 73, vacuumizing until the vacuum pressure gauge 8 shows below 10pa, closing the third control valve 73, and closing the vacuumizing device 3;
after repeating the above operation several times (e.g., 5 times), the first control valve 71 is opened, the second pressure regulating valve 62 is closed, and the pressure in the system is maintained at 0.2Mpa, and then the sample gas supply means 2 is removed, but the purge gas of 0.2Mpa is kept in the system to prevent the processing apparatus from being contaminated by the outside air.
5) The next sample gas supply means 2 is replaced to perform the steps 1) -4) again for the analysis in order.
It should be noted that the above-mentioned embodiments are only certain embodiments disclosed in the present disclosure.
Further, on the basis of the above-described embodiment, a fifth control valve 75 is added, as shown in fig. 2. The evacuation device 3 communicates with the outlet of the gas analysis apparatus 4 through a pipe provided with a fifth control valve 75. The fifth control valve 75 is a diaphragm valve.
When only the evacuation of the line at the outlet of the gas analysis device 4 is required, the other valves are closed and the fifth control valve 75 is opened alone.
The utility model has the following beneficial effects:
the sample gas is completely replaced before entering the instrument, so that air pollution is avoided; and the sample gas passes through the pipeline more purer without air pollution, so that the corrosion of the air with water vapor is avoided. After the analysis is finished, the sample is completely removed and purged, and no sample gas is left in the pipeline, so that the corrosion to the pipeline is avoided. The systematic design of analysis and treatment avoids the problems of blind connecting pipelines, temporary purging and the like.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the present invention, and not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the scope of the present invention.
Claims (10)
1. Corrosive gas analysis processing apparatus, characterized by comprising:
the device comprises a purge gas supply device, a purge gas supply device and a control valve, wherein the purge gas supply device is respectively communicated with an inlet and an outlet of the gas analysis equipment through a pipeline provided with the control valve and is used for providing purge gas for purging the pipeline communicated with the purge gas supply device and the inlet and the outlet of the gas analysis equipment;
the sample gas supply device is communicated with an inlet of the gas analysis equipment through a pipeline and is used for providing sample gas;
and the vacuumizing device is respectively communicated with the sample gas supply device and the inlet and the outlet of the gas analysis equipment through a pipeline provided with a control valve and is used for vacuumizing the pipeline communicated with the vacuumizing device.
2. The corrosive gas analyzing and processing device according to claim 1, wherein the purge gas supply device is connected to the inlet of the gas analyzing apparatus through a pipeline provided with a first pressure regulating valve and a first control valve in sequence, and the inlet and the outlet of the gas analyzing apparatus are connected to each other through a pipeline provided with a second control valve.
3. The corrosive gas analyzing and processing device according to claim 2, wherein the sample gas supply means is communicated with the inlet of the gas analyzing apparatus through a pipe provided with a second pressure regulating valve.
4. The corrosive gas analyzing and processing device according to claim 3, wherein said purge gas supply means is connected to said sample gas supply means through a pipe having a first pressure regulating valve, a first control valve and a second pressure regulating valve arranged in this order.
5. The corrosive gas analysis and treatment device according to claim 4, wherein a vacuum pressure gauge for detecting real-time pressure of the output pipeline of the vacuum pumping device is installed on the output pipeline of the vacuum pumping device.
6. The corrosive gas analysis processing device according to claim 5, wherein said vacuum-pumping means is communicated with an inlet of said gas analyzing apparatus through a pipe provided with a third control valve;
meanwhile, the vacuumizing device is communicated with the sample gas supply device through a pipeline which is sequentially provided with a third control valve and a second pressure regulating valve.
7. The corrosive gas analysis and treatment device of claim 6, wherein a first pipeline filter is further arranged between the first pressure regulating valve and the first control valve, and the first pipeline filter is used for filtering gas flowing through the pipeline.
8. The corrosive gas analyzing and processing device according to claim 6, wherein a second pipeline filter is further disposed between the second pressure regulating valve and the third control valve, and the second pipeline filter is used for filtering gas flowing through the pipeline.
9. The corrosive gas analysis and treatment device of claim 8, wherein a pipeline purifier is further arranged between the second pipeline filter and the third control valve, and the pipeline purifier is used for performing water removal treatment on gas flowing through the pipeline.
10. The corrosive gas analysis processing device according to any one of claims 7 to 9, further comprising: and the tail gas collection and treatment device is communicated with an outlet of the gas analysis equipment through a pipeline provided with a fourth control valve and is used for collecting and treating tail gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122318675.9U CN216747605U (en) | 2021-09-24 | 2021-09-24 | Corrosive gas analysis and treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122318675.9U CN216747605U (en) | 2021-09-24 | 2021-09-24 | Corrosive gas analysis and treatment device |
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| Publication Number | Publication Date |
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| CN216747605U true CN216747605U (en) | 2022-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122318675.9U Active CN216747605U (en) | 2021-09-24 | 2021-09-24 | Corrosive gas analysis and treatment device |
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| CN (1) | CN216747605U (en) |
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- 2021-09-24 CN CN202122318675.9U patent/CN216747605U/en active Active
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Address after: 215000 Anmin Road, Panyang Industrial Park, Huangdai Town, Xiangcheng District, Suzhou City, Jiangsu Province Patentee after: Jinhong Gas Co.,Ltd. Address before: 215000 Anmin Road, Panyang Industrial Park, Huangdai Town, Xiangcheng District, Suzhou City, Jiangsu Province Patentee before: SUZHOU JINHONG GAS Co.,Ltd. |
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