CN211374506U - Gas path system for infrared element analyzer - Google Patents
Gas path system for infrared element analyzer Download PDFInfo
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- CN211374506U CN211374506U CN201920812488.6U CN201920812488U CN211374506U CN 211374506 U CN211374506 U CN 211374506U CN 201920812488 U CN201920812488 U CN 201920812488U CN 211374506 U CN211374506 U CN 211374506U
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Abstract
The utility model discloses a gas circuit system for infrared elemental analyzer, include and communicate air feeder, drying device, infrared detection device in proper order through the pipeline, the pipeline include with infrared elemental analyzer in fire the air inlet pipeline of burning furnace air inlet intercommunication and with infrared elemental analyzer in fire the air outlet pipeline of burning furnace gas outlet intercommunication, still include air exhaust device, air exhaust device sets up on the air outlet pipeline, communicate with infrared detection device's exit. The utility model has the advantages of prevent temperature rise interference, the air current is stable, the test result is accurate.
Description
Technical Field
The utility model relates to an element content analysis technical field in the combustible substance refers in particular to a gas circuit system for infrared element analysis appearance.
Background
The combustible substances contain partial mineral impurities and water, and the rest are organic substances, the organic substances in the coal mainly comprise elements such as carbon, hydrogen, oxygen, nitrogen, sulfur and the like, the elements are one of indexes of scientific classification of the coal, the organic substances can be used for calculating the calorific value of the coal and estimating and predicting low-temperature carbonization products of the coal, the low-temperature carbonization products are basic bases for evaluating the quality of the combustible substances, and all measuring instruments for analyzing the content of the elements in the combustible substances are generally called as element analyzers
When the element analysis equipment that adopts at present detects the analysis to the element content in the combustible substance, generally all adopt infrared detection device, its working process is that the material that will detect carries out high temperature oxygen boosting burning to it through burner, then will produce the gas after the high temperature oxygen boosting burning and let in infrared detection device and detect, gas after the high temperature oxygen boosting burning among the prior art utilizes the aspiration pump to send into infrared detection device, the aspiration pump design is at infrared detection device inlet end, the aspiration pump can generate heat and produce the temperature rise in continuous work, experimental gas passes through the aspiration pump because of receiving the temperature influence, lead to the infrared sensor signal value of rear end test gas to receive the interference, the test result has obvious reduction trend.
Disclosure of Invention
To the technical problem that prior art exists, the utility model provides a prevent that temperature rise disturbs, the air current is stable, the accurate gas circuit system that is used for infrared elemental analyzer of test result.
In order to solve the technical problem, the utility model discloses a following technical scheme:
the gas circuit system for the infrared element analyzer comprises a gas supply device, a drying device and an infrared detection device which are sequentially communicated through pipelines, wherein the pipelines comprise a gas inlet pipeline communicated with a gas inlet of a combustion furnace in the infrared element analyzer and a gas outlet pipeline communicated with a gas outlet of the combustion furnace in the infrared element analyzer, and the gas circuit system further comprises a gas extraction device, and the gas extraction device is arranged on the gas outlet pipeline and is communicated with an outlet of the infrared detection device.
As a further improvement of the utility model: and a first control valve, a pressure detection device, a gas flow regulating device and a flow display device are arranged between the gas supply device and the combustion furnace.
As a further improvement of the utility model: and a filtering device is arranged between the drying tube and the infrared detection device.
As a further improvement of the utility model: and a second control valve is arranged between the infrared detection device and the air extraction device.
As a further improvement of the utility model: and the gas outlet pipeline communicated with the gas outlet of the gas extraction device is provided with a gas flow regulating device, a pressure detection device and a flow display device.
As a further improvement of the utility model: the gas flow regulating device is a throttle valve.
As a further improvement of the utility model: the flow display device is a flowmeter.
As a further improvement of the utility model: the infrared detection device is an infrared sensor thermostat, and an infrared sensor is arranged in the infrared sensor thermostat.
As a further improvement of the utility model: the gas supply device is an oxygen cylinder.
Compared with the prior art, the utility model has the advantages of:
1. the utility model is used for infrared elemental analyzer's gas circuit system, air exhaust device set up behind infrared detection device, and the temperature rise of avoiding the long-time during operation of air exhaust device to produce causes the interference to the experimental gas temperature who gets into infrared detection device to can ensure that infrared detection device output signal is in steady state always, guarantee the precision and the degree of accuracy satisfaction requirement of parallel appearance.
2. The utility model is used for infrared elemental analyzer's gas circuit system, through at air feeder with fire and be equipped with gas flow adjusting device between the burning furnace air inlet, adjust the oxygen of constant flow 3.5L/min and get into and fire burning furnace, be equipped with gas flow adjusting device control air flow 2.5L/min at the air exhaust device delivery outlet, make unnecessary 1L/min's oxygen spill over from the fire door that fires burning furnace, the oxygen that the fire door spills over plays the evacuation effect, the gas that produces when guaranteeing to fire burning furnace burning does not receive external air interference. In addition, the air extracting device controls the output flow through the gas flow adjusting device, so that the combustion gas can be ensured to constantly flow through the infrared detection device for analysis, and the signal interference is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a gas circuit system according to a first embodiment of the present invention.
Illustration of the drawings:
1. a gas supply device; 2. a first control valve; 3. a pressure detection device; 4. a gas flow regulating device; 5. a flow rate display device; 6. a combustion furnace; 7. a drying device; 8. a filtration device; 9. an infrared detection device; 10. a second control valve; 11. and an air extracting device.
Detailed Description
The invention will be described in further detail with reference to the drawings and specific examples.
As shown in fig. 1, the utility model provides a gas circuit system for infrared elemental analyzer, include to communicate gas supply unit 1, drying device 7, infrared detection device 9 in proper order through the pipeline, the pipeline include with infrared elemental analyzer in fire the inlet line of burning furnace 6 air inlets intercommunication and with infrared elemental analyzer in fire the outlet line of burning furnace 6 gas outlets intercommunication, still include air exhaust device 11, air exhaust device 11 sets up on the outlet duct way, with infrared detection device 9's exit intercommunication. Air exhaust device 11 sets up behind infrared detection device 9, can avoid the temperature rise that air exhaust device 11 produced when working for a long time to cause the interference to the experimental gas temperature that gets into infrared detection device 9 to can ensure that infrared detection device 9 output signal is in stable state always, guarantee that the precision and the degree of accuracy of parallel appearance satisfy the requirement.
In this embodiment, a first control valve 2, a pressure detection device 3, a gas flow rate adjustment device 4, and a flow rate display device 5 are provided between the gas supply device 1 and the combustion furnace 6. And the gas outlet pipeline communicated with the gas outlet of the gas extraction device 11 is provided with a gas flow regulating device 4, a pressure detection device 3 and a flow display device 5.
Further, in the preferred embodiment, the first control valve 2 is a two-way solenoid valve for controlling the on/off of the gas supply device, the pressure detection device 3 is a pressure sensor for automatically detecting the oxygen output pressure of the gas supply device 1 through the pressure sensor, the gas flow regulating device 4 is a throttle valve for regulating the output stable oxygen flow through the throttle valve, and the flow display device is a flow meter for displaying the oxygen flow in the pipeline. The gas flow adjusting device 4 is arranged between the gas supply device 1 and the gas inlet of the combustion furnace 6, oxygen with a constant flow of 3.5L/min is adjusted to enter the combustion furnace 6, the gas flow adjusting device 4 is also arranged at the outlet of the air extraction device 11, the gas flow adjusting device 4 controls the gas outlet flow of 2.5L/min, redundant 1L/min oxygen overflows from the furnace mouth of the combustion furnace 6, the oxygen overflowing from the furnace mouth plays a role of emptying, and the gas generated during combustion of the combustion furnace 6 is ensured not to be interfered by outside air. In addition, the gas extraction device 11 controls the output flow through the gas flow adjusting device 4, so that the combustion gas can be ensured to constantly flow through the infrared detection device 9 for analysis, and the signal interference is reduced. Through set up pressure sensor and flowmeter on air inlet pipeline and outlet duct way, whether can real-time supervision gas circuit normal, whether flow and pressure are stable.
In this embodiment, be equipped with filter equipment 8 between drying device 7 and the infrared detection device 9, the gas that releases after the sample burning is taken out through air exhaust device 11, and the moisture in the gas after the burning is detached through drying device 7, and filter equipment 8 filters the gas after the burning through drying device 7, avoids polluting infrared detection device 9 and influences the testing result.
In this embodiment, a second control valve 10 is disposed between the infrared detection device 9 and the air extraction device 11. The front end of the air extractor 11 is provided with a second control valve 10 for controlling the gas circulation in the pipeline.
In this embodiment, the infrared detection device 9 is an infrared sensor incubator, an infrared sensor is arranged in the infrared sensor incubator, and the high-precision infrared sensor is used for detecting the gas after combustion, so that the precision of the detection result can be ensured.
In this embodiment, the gas supply device 1 is an oxygen cylinder, and the oxygen cylinder is used for supplying oxygen, so that the replacement is convenient and fast.
Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, a plurality of modifications and decorations without departing from the principle of the present invention should be considered as the protection scope of the present invention.
Claims (9)
1. The gas path system for the infrared element analyzer comprises a gas supply device (1), a drying device (7) and an infrared detection device (9) which are sequentially communicated through pipelines, wherein the pipelines comprise a gas inlet pipeline communicated with a gas inlet of a combustion furnace (6) in the infrared element analyzer and a gas outlet pipeline communicated with a gas outlet of the combustion furnace (6) in the infrared element analyzer, and the gas path system is characterized by further comprising a gas extraction device (11), wherein the gas extraction device (11) is arranged on the gas outlet pipeline and is communicated with an outlet of the infrared detection device (9).
2. The gas circuit system for the infrared elemental analyzer according to claim 1, wherein a first control valve (2), a pressure detecting device (3), a gas flow regulating device (4) and a flow display device (5) are provided between the gas supply device (1) and the combustion furnace (6).
3. The gas circuit system for an infrared elemental analyzer according to claim 1, characterized in that a filtering device (8) is provided between the drying device (7) and the infrared detection device (9).
4. The gas circuit system for an infrared elemental analyzer according to claim 1, characterized in that a second control valve (10) is provided between the infrared detection means (9) and the air extraction means (11).
5. The gas circuit system for the infrared elemental analyzer according to claim 1, wherein a gas flow regulating device (4), a pressure detecting device (3) and a flow display device (5) are arranged on a gas outlet pipeline communicated with a gas outlet of the gas extracting device (11).
6. The gas circuit system for an infrared elemental analyzer according to claim 2 or 5, wherein the gas flow regulating device (4) is a throttle valve.
7. The gas circuit system for an infrared elemental analyzer according to claim 2 or 5, characterized in that the flow display device (5) is a flow meter.
8. The gas circuit system for an infrared elemental analyzer according to any one of claims 1 to 5, wherein the infrared detection device (9) is an infrared sensor incubator in which an infrared sensor is disposed.
9. The gas circuit system for an infrared elemental analyzer according to any one of claims 1 to 5, wherein the gas supply device (1) is an oxygen cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920812488.6U CN211374506U (en) | 2019-05-31 | 2019-05-31 | Gas path system for infrared element analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920812488.6U CN211374506U (en) | 2019-05-31 | 2019-05-31 | Gas path system for infrared element analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211374506U true CN211374506U (en) | 2020-08-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920812488.6U Active CN211374506U (en) | 2019-05-31 | 2019-05-31 | Gas path system for infrared element analyzer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211374506U (en) |
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2019
- 2019-05-31 CN CN201920812488.6U patent/CN211374506U/en active Active
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