CN215339139U - Gas automatic switching continuous sampling device - Google Patents
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- CN215339139U CN215339139U CN202121709396.9U CN202121709396U CN215339139U CN 215339139 U CN215339139 U CN 215339139U CN 202121709396 U CN202121709396 U CN 202121709396U CN 215339139 U CN215339139 U CN 215339139U
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Abstract
The application relates to the technical field of gas analysis, in particular to a gas automatic switching continuous sampling device, which solves the problems of low accuracy and high cost of gas component analysis. The application provides gaseous automatic switch-over continuous sampling device includes: the gas analysis device comprises a plurality of sampling pipelines and a plurality of switch modules corresponding to the sampling pipelines, wherein the sampling pipelines can connect a plurality of gas production modules with one analysis module, and the switch modules can open or close the sampling pipelines respectively, so that the gas produced by the gas production modules can be analyzed by only one analysis module, and the equipment cost is reduced. Meanwhile, the gas generation module connected with the analysis module can be selected only by controlling the on or off of the plurality of switch modules, so that the labor cost is reduced, the gas generated by the gas generation module directly enters the analysis module, the operations such as manual sampling and the like are not needed, the errors caused by the manual sampling are reduced, and the accuracy of gas component analysis is improved.
Description
Technical Field
The application relates to the technical field of gas analysis, in particular to a gas automatic switching continuous sampling device.
Background
The current method for analyzing the gas components is to directly connect a gas analyzer to a reactor for generating gas, so as to analyze the components of the gas generated by the reactor. Therefore, each reactor is connected to a gas analyzer. When a plurality of reactors simultaneously generate gas and gas component analysis is needed, a plurality of gas analyzers need to be connected. However, the gas analyzer is expensive and the cost of the equipment is high. In addition, also for reducing equipment cost, the manual work is taken a sample to the gas that the reactor produced, then puts into gas analysis appearance and carries out gas composition analysis, but the easy error that produces of manual sampling leads to gas composition analysis accuracy low, and because the sampling frequency is high in the experimentation and consume a large amount of manpowers, the human cost is high.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the present application provides a gas automatic switching continuous sampling device, which solves the problems of low accuracy and high cost of gas component analysis.
In a first aspect, an embodiment of the present application provides an automatic gas switching continuous sampling device, including: the first ends of the sampling pipelines are respectively connected with the gas production modules, and the second ends of the sampling pipelines are connected with the analysis module and are used for respectively conveying the gas produced by the gas production modules to the analysis module; and a plurality of switch modules corresponding to the plurality of sampling pipelines, respectively arranged between the first ends of the plurality of sampling pipelines and the second ends of the plurality of sampling pipelines, and used for respectively opening or closing the plurality of sampling pipelines.
In an embodiment of the present application, the automatic gas switching continuous sampling device further includes: and the control module is in communication connection with the switch modules and is used for automatically controlling the switch modules to open or close the sampling pipelines.
In an embodiment of the present application, the automatic gas switching continuous sampling device further includes: and the gas chambers corresponding to the sampling pipelines are respectively arranged between the first ends of the sampling pipelines and the switch modules and are used for respectively collecting the gas generated by the gas generation modules.
In an embodiment of the present application, each of the plurality of air chambers includes a pressure relief valve to limit the air pressure within the air chamber.
In an embodiment of the present application, the automatic gas switching continuous sampling device further includes: the second ends of the plurality of sampling pipelines are connected with the analysis module through the common pipeline; the sampling pump is arranged between the first end of the common pipeline and the second end of the common pipeline and used for removing the gas in the common pipeline or extracting the gas collected in the gas chamber in different working periods.
In an embodiment of the present application, the automatic gas switching continuous sampling device further includes: a control module communicatively coupled to the plurality of switch modules, the control module configured to: confirming that the plurality of switch modules are all in a closed state; starting a sampling pump, and keeping the sampling pump started within a preset time; and opening the switch module corresponding to at least one sampling pipeline, so that the gas collected in at least one gas chamber is conveyed to the analysis module.
In an embodiment of the present application, the automatic gas switching continuous sampling device further includes: a plurality of sampling pumps corresponding to the plurality of sampling pipes; the sampling pumps are respectively arranged between the switch modules and the second ends of the sampling pipelines and are used for respectively pumping the gas in the gas chambers.
In an embodiment of the present application, the automatic gas switching continuous sampling device further includes: a control module communicatively coupled to the plurality of switch modules, the control module configured to: confirming that the plurality of switch modules are all in a closed state; starting at least one sampling pump corresponding to at least one sampling pipeline in the plurality of sampling pumps, and keeping the at least one sampling pump started within a preset time; and opening the switch module corresponding to at least one sampling pipeline, so that the gas generated by at least one gas generation module is transmitted to the analysis module.
In an embodiment of the present application, each of the switch modules of the plurality of switch modules includes a solenoid valve.
In an embodiment of the present application, the automatic gas switching continuous sampling device further includes: and the analysis module is connected with the second ends of the plurality of sampling pipelines and is used for analyzing the gas components entering the analysis module from the second ends of the plurality of sampling pipelines.
The embodiment of the application provides a gaseous automatic switch-over continuous sampling device, through making gaseous automatic switch-over continuous sampling device include a plurality of sampling pipelines and a plurality of switch modules that correspond with a plurality of sampling pipelines, thereby make a plurality of sampling pipelines can produce the gas module with a plurality of and be connected with an analysis module, and a plurality of switch modules can open respectively or close a plurality of sampling pipelines, thereby control a plurality of gas modules and communicate with analysis module in proper order, in order to realize respectively carrying out the analysis to the gas that a plurality of gas modules of producing produced, only need an analysis module can carry out the analysis to the gas that a plurality of gas modules of producing produced respectively, equipment cost has been reduced. Meanwhile, the gas generation module communicated with the analysis module can be selected only by controlling the opening or closing of the plurality of switch modules, so that the labor cost is reduced, the gas generated by the gas generation module directly enters the analysis module, the operations such as manual sampling and the like are not needed, the errors caused by the manual sampling are reduced, and the accuracy of gas component analysis is improved.
Drawings
Fig. 1 is a schematic structural diagram of an automatic gas switching continuous sampling device according to an embodiment of the present disclosure.
Fig. 2 is a schematic structural diagram of an automatic gas switching continuous sampling device according to another embodiment of the present disclosure.
Fig. 3 is a schematic structural diagram of an automatic gas switching continuous sampling device according to another embodiment of the present disclosure.
Fig. 4 is a schematic structural diagram of an automatic gas switching continuous sampling device according to another embodiment of the present disclosure.
Fig. 5 is a schematic structural diagram of an automatic gas switching continuous sampling device according to another embodiment of the present disclosure.
Fig. 6 is a schematic structural diagram of an automatic gas switching continuous sampling device according to another embodiment of the present disclosure.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Fig. 1 is a schematic structural diagram of an automatic gas switching continuous sampling device according to an embodiment of the present disclosure. As shown in fig. 1, the gas automatic switching continuous sampling device provided by the embodiment of the present application includes: a plurality of sampling pipes 1 and a plurality of switch modules 2 corresponding to the plurality of sampling pipes 1.
Specifically, the first ends 11 of the sampling pipes 1 are respectively connected to the gas generation modules 3, and the second ends 12 of the sampling pipes 1 are connected to the analysis module 4. The sampling pipelines 1 are used for respectively conveying the gas generated by the gas generation modules 3 to the analysis module 4. The plurality of switch modules 2 corresponding to the plurality of sampling pipelines 1 are respectively disposed between the first ends 11 and the second ends 12 of the plurality of sampling pipelines 1, and are used for respectively opening or closing the plurality of sampling pipelines 1. Fig. 1 only schematically shows three sampling pipelines 1 and three switch modules 2, and the number of the actual sampling pipelines 1 and switch modules 2 can be selected according to actual requirements, which is not specifically limited in the present application.
If the analysis module 4 only has one pipeline interface, a multi-way adapter can be arranged at the pipeline interface of the analysis module 4, one end of the multi-way adapter is connected with the pipeline interface of the analysis module 4, and the other ends are respectively connected with the second ends 12 of the plurality of sampling pipelines 1; or the second ends 12 of a plurality of sampling pipelines 1 are connected together through a three-way joint and then connected with the pipeline interface of the analysis module 4. The connection mode of the second ends 12 of the plurality of sampling pipes 1 and the analysis module 4 is not particularly limited in the present application.
The working principle of the automatic gas switching continuous sampling device is as follows: when the gas automatic switching continuous sampling device is in a non-working state, the switch modules 2 are in a closed state. After the gas automatic switching continuous sampling device starts to work, one switch module 2 can be opened according to sampling requirements, so that the sampling pipeline 1 corresponding to the switch module 2 is in an open state, gas generated by the gas generation module 3 connected with the sampling pipeline 1 is transmitted to the analysis module 4, and the analysis module 4 performs gas component analysis on the gas generated by the gas generation module 3. After the gas generated by the gas generation module 3 is analyzed, the switch module 2 corresponding to the gas generation module 3 can be closed. And then, continuously opening the other switch module 2 according to the sampling requirement, thereby carrying out gas component analysis on the gas generated by the gas generation module 3 corresponding to the other switch module 2. When all the gas production modules 3 have no gas component analysis requirement, the switch modules 2 are in a closed state, namely the gas automatic switching continuous sampling device is in a non-working state.
Through making gaseous automatic switch-over continuous sampling device include a plurality of sampling pipeline 1 and a plurality of switch module 2 that correspond with a plurality of sampling pipeline 1, thereby make a plurality of sampling pipeline 1 can produce a plurality of gas module 3 and an analysis module 4 is connected, and a plurality of switch module 2 can open or close a plurality of sampling pipeline 1 respectively, thereby control a plurality of gas module 3 and communicate with analysis module 4 in proper order, in order to realize respectively carrying out the analysis to the gas that a plurality of gas module 3 produced, only need an analysis module 4 can be respectively to the gas that a plurality of gas module 3 produced and carry out the analysis, equipment cost has been reduced. Meanwhile, the gas generation module 3 communicated with the analysis module 4 can be selected only by controlling the opening or closing of the switch modules 2, so that the labor cost is reduced, the gas generated by the gas generation module 3 directly enters the analysis module 4, the operations such as manual sampling and the like are not needed, the errors caused by manual sampling are reduced, and the accuracy of gas component analysis is improved.
In an embodiment of the present application, the gas generation module 3 may be an anaerobic fermentation reactor, or a trace gas reactor, as long as the reactor is capable of generating gas, and the present application does not specifically limit the gas generation module 3. The analysis module 4 may be a device for analyzing gas, such as a gas analyzer, a spectrum analyzer, or a gas chromatograph, as long as the device can analyze gas, and the analysis module 4 is not particularly limited in this application.
Fig. 2 is a schematic structural diagram of an automatic gas switching continuous sampling device according to another embodiment of the present disclosure. As shown in fig. 2, the gas automatic switching continuous sampling device according to the embodiment of the present application further includes: and a control module 5.
Specifically, the control module 5 is used for automatically controlling the plurality of switch modules 2 to open or close the plurality of sampling pipelines 1. The control module 5 may be in communication connection with the switch module 2, and the communication connection may be a wired connection or a wireless connection, which is not specifically limited in this application. The dashed lines shown in fig. 2 are used to characterize the communication connection of the control module 5 to the switch module 2. The control module 5 can be a control chip or a single chip microcomputer, as long as the control module can automatically control the plurality of switch modules 2 to open or close the plurality of sampling pipelines 1, and the structure of the control module 5 is not specifically limited in the application.
The plurality of switch modules 2 may be numbered 1, 2, 3, 4, etc. The control module 5 may be configured to: switch module 2 numbered 1 is turned on at the first time node, switch module 2 numbered 2 is turned on at the second time node, switch module 2 numbered 3 is turned on at the third time node, switch module 2 numbered 4 is turned on at the fourth time node, and so on. The first time node may be 8 am of each day, the second time node may be 10 am of each day, the third time node may be 12 am of each day, and the fourth time node may be 2 pm of each day. The first time node may also be the 1 st hour after all the gas production modules 3 are started, the second time node may also be the 2 nd hour after all the gas production modules 3 are started, the third time node may also be the 3 rd hour after all the gas production modules 3 are started, and the fourth time node may also be the 4 th hour after all the gas production modules 3 are started. The user can set up the numbering mode of a plurality of switch module 2 according to actual demand, and this application does not do specifically and restricts. The user can set the number of the time nodes and the specific form and content of the plurality of time nodes according to actual requirements, and the application is not particularly limited.
In an embodiment of the present application, the control module 5 may also be in communication connection with the analysis module 4, so as to control the analysis module 4 to automatically perform gas component analysis, and the analysis data may be automatically stored after the gas component analysis is completed. For example, the control module 5 may send a start analysis signal or an end analysis signal or the like to the analysis module 4. Specifically, the control module 5 may implement communication with the analysis module 4 through a related protocol interface of the RS232, and may also implement communication with the analysis module 4 through another protocol interface, which is not specifically limited in this application.
By using the control module 5 to automatically control the plurality of switch modules 2 to open or close the plurality of sampling pipelines 1, the switch modules 2 do not need to be manually opened or closed by personnel, and the labor cost is further reduced.
In an embodiment of the present application, the switch module 2 may be a solenoid valve. The control module 5 can be electrically connected with the electromagnetic valve so as to control the opening or closing of the electromagnetic valve, and the electromagnetic valve is simple and reliable in structure, simple and convenient to control and easy to realize.
Fig. 3 is a schematic structural diagram of an automatic gas switching continuous sampling device according to another embodiment of the present disclosure. As shown in fig. 3, the gas automatic switching continuous sampling device according to the embodiment of the present application further includes: a plurality of gas chambers 6 corresponding to the plurality of sampling pipes 1.
Specifically, the plurality of air chambers 6 are respectively disposed between the first ends 11 of the plurality of sampling pipes 1 and the plurality of switch modules 2. The plurality of air chambers 6 are used for respectively collecting the gas generated by the plurality of gas generation modules 3. The air chamber 6 may be an air bag, a glass bottle, a plastic bottle, or the like, and the structure of the air chamber 6 is not particularly limited in the present application.
The gas generated by the gas generation module 3 is in the sealed space of the gas generation module 3, and as the gas generated by the gas generation module 3 is more and more, the gas pressure in the sealed space of the gas generation module 3 is more and more, and the gas pressure can possibly influence the gas generation process of the gas generation module 3, therefore, the gas pressure in the sealed space of the gas generation module 3 can be kept unchanged by enabling the plurality of gas chambers 6 to respectively collect the gas generated by the plurality of gas generation modules 3, thereby reducing the influence on the gas generation process of the gas generation module 3, providing a stable gas generation environment for the gas generation module 3, enabling the gas generation module 3 to stably generate the gas, and ensuring that the gas automatic switching continuous sampling device performs sampling according to the preset time node.
Fig. 4 is a schematic structural diagram of an automatic gas switching continuous sampling device according to another embodiment of the present disclosure. As shown in fig. 4, the gas chamber 6 includes a relief valve 61 to limit the gas pressure within the gas chamber 6.
Specifically, when the air pressure in the air chamber 6 is too large and exceeds the preset air pressure, the pressure release valve 61 is automatically opened to release part of the air in the air chamber 6, so that the air pressure in the air chamber 6 is ensured to be within the preset range. The value of the preset air pressure can be set by setting the parameters of the pressure relief valve 61.
Fig. 5 is a schematic structural diagram of an automatic gas switching continuous sampling device according to another embodiment of the present disclosure. As shown in fig. 5, the gas automatic switching continuous sampling device according to the embodiment of the present application further includes: a common line 7 and a sampling pump 8.
In particular, the second ends 12 of the plurality of sampling pipes 1 are each connected to the analysis module 4 by a common pipe 7. Namely, the shared pipeline 7 is a section of pipeline which needs to be shared when a plurality of gas production modules 3 are connected with one analysis module 4. And the sampling pump 8 is arranged between the first end 71 of the common pipeline 7 and the second end 72 of the common pipeline 7 and is used for removing the gas in the common pipeline 7 or extracting the gas collected in the gas chamber in different working periods. The first end 71 of the common line 7 is connected to the second end 12 of the sampling line 1. The sampling pump 8 may be a device for pumping gas, and the structure of the sampling pump 8 is not particularly limited in this application.
Before gaseous automatic switch-over continuous sampling device begins to take a sample, a plurality of switch module 2 are in the off-state, can open sampling pump 8, make sampling pump 8 extract the residual gas in the shared pipeline 7 to make the residual gas in the shared pipeline 7 all discharge, for the sample provides clean shared pipeline 7, reduced the impure gas in the shared pipeline 7, improved gas composition analysis's accuracy.
On the basis of the embodiment shown in fig. 5, the gas automatic switching continuous sampling device further comprises a control module 5. A control module 5 is communicatively coupled to the plurality of switch modules 2, the control module 5 configured to: confirming that the plurality of switch modules 2 are all in a closed state, then starting the sampling pump 8, keeping the sampling pump 8 started within a preset time, and then opening the switch module 2 corresponding to the at least one sampling pipeline 1, so that the gas collected in the at least one gas chamber 6 is conveyed to the analysis module 4.
Fig. 6 is a schematic structural diagram of an automatic gas switching continuous sampling device according to another embodiment of the present disclosure. As shown in fig. 6, the gas automatic switching continuous sampling device according to the embodiment of the present application further includes: a plurality of sampling pumps 8 corresponding to the plurality of sampling pipes 1.
Specifically, the sampling pumps 8 are respectively disposed between the switching modules 2 and the second ends 12 of the sampling pipes for respectively pumping the gas in the gas chambers 6.
Before gaseous automatic switch-over continuous sampling device begins to take a sample, a plurality of switch modules 2 are in the off-state, can open a plurality of sampling pumps 8, make a plurality of sampling pumps 8 extract the residual gas in a plurality of sampling pipe ways 1 to the residual gas in a plurality of sampling pipe ways 1 of discharging has reduced the impure gas in the sampling pipe way 1, has improved gas composition analysis's accuracy.
Before the gas automatic switching continuous sampling device starts sampling, the switch modules 2 are in a closed state, and one sampling pump 8 can also be started, so that the sampling pump 8 can extract the residual gas in the corresponding sampling pipeline 1, and the residual gas in the sampling pipeline 1 is discharged. Through having pointed opening sampling pump 8, can have pointed discharge be about to need the residual gas in the sample pipeline 1 of sample, practice thrift the electric energy to practice thrift the sample cost.
On the basis of the embodiment shown in fig. 6, the gas automatic switching continuous sampling device further comprises a control module 5. A control module 5 is communicatively coupled to the plurality of switch modules 2, the control module 5 configured to: confirming that the switch modules 2 are all in a closed state, then starting at least one sampling pump 8 corresponding to at least one sampling pipeline 1 in the sampling pumps 8, keeping the at least one sampling pump 8 started within a preset time, and then starting the switch module 2 corresponding to the at least one sampling pipeline 1, so that the gas generated by at least one gas generation module 3 is conveyed to the analysis module 4.
In an embodiment of the present application, the automatic gas switching continuous sampling device further includes: and an analysis module. The analysis module is connected with the second ends of the plurality of sampling pipelines and is used for analyzing the gas components entering the analysis module from the second ends of the plurality of sampling pipelines.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modifications, equivalents and the like that are within the spirit and principle of the present application should be included in the scope of the present application.
Claims (10)
1. An automatic gas switching continuous sampling device, comprising:
the first ends of the sampling pipelines are respectively connected with the gas production modules, and the second ends of the sampling pipelines are connected with the analysis module and are used for respectively conveying the gas produced by the gas production modules to the analysis module; and
and the switch modules correspond to the sampling pipelines and are respectively arranged between the first ends of the sampling pipelines and the second ends of the sampling pipelines and used for respectively opening or closing the sampling pipelines.
2. The automatic gas switching continuous sampling device of claim 1, further comprising:
and the control module is in communication connection with the switch modules and is used for automatically controlling the switch modules to open or close the sampling pipelines.
3. The automatic gas switching continuous sampling device of claim 1 or 2, further comprising:
and the gas chambers corresponding to the sampling pipelines are respectively arranged between the first ends of the sampling pipelines and the switch modules and are used for respectively collecting the gas generated by the gas generation modules.
4. The auto-switching continuous gas sampling device of claim 3, wherein each of the gas chambers of the plurality of gas chambers includes a pressure relief valve to limit the gas pressure within the gas chamber.
5. The automatic gas switching continuous sampling device of claim 3, further comprising:
the second ends of the plurality of sampling pipelines are connected with the analysis module through the common pipeline;
the sampling pump is arranged between the first end of the common pipeline and the second end of the common pipeline and used for removing the gas in the common pipeline or extracting the gas collected in the gas chamber in different working periods.
6. The automatic gas switching continuous sampling device of claim 5, further comprising:
a control module communicatively coupled to the plurality of switch modules, the control module configured to: confirming that the plurality of switch modules are all in a closed state; starting the sampling pump, and keeping the sampling pump started within a preset time; and opening the switch module corresponding to at least one sampling pipeline, so that the gas collected in at least one gas chamber is conveyed to the analysis module.
7. The automatic gas switching continuous sampling device of claim 3, further comprising:
a plurality of sampling pumps corresponding to the plurality of sampling pipes;
the sampling pumps are respectively arranged between the switch modules and the second ends of the sampling pipelines and are used for respectively pumping the gas in the gas chambers.
8. The automatic gas switching continuous sampling device of claim 7, further comprising:
a control module communicatively coupled to the plurality of switch modules, the control module configured to: confirming that the plurality of switch modules are all in a closed state; starting at least one sampling pump corresponding to at least one sampling pipeline in the plurality of sampling pumps, and keeping the at least one sampling pump started within a preset time; and opening the switch module corresponding to at least one sampling pipeline, so that the gas generated by at least one gas generation module is transmitted to the analysis module.
9. The automatic gas switching continuous sampling device of claim 1 or 2, wherein each of the switch modules of the plurality of switch modules comprises a solenoid valve.
10. The automatic gas switching continuous sampling device of claim 1 or 2, further comprising:
and the analysis module is connected with the second ends of the plurality of sampling pipelines and is used for analyzing the gas components entering the analysis module from the second ends of the plurality of sampling pipelines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121709396.9U CN215339139U (en) | 2021-07-26 | 2021-07-26 | Gas automatic switching continuous sampling device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121709396.9U CN215339139U (en) | 2021-07-26 | 2021-07-26 | Gas automatic switching continuous sampling device |
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| Publication Number | Publication Date |
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| CN215339139U true CN215339139U (en) | 2021-12-28 |
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| CN202121709396.9U Active CN215339139U (en) | 2021-07-26 | 2021-07-26 | Gas automatic switching continuous sampling device |
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