CN205193043U - Detection apparatus for nitric acid manufacture tail gas - Google Patents
Detection apparatus for nitric acid manufacture tail gas Download PDFInfo
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- CN205193043U CN205193043U CN201520898905.5U CN201520898905U CN205193043U CN 205193043 U CN205193043 U CN 205193043U CN 201520898905 U CN201520898905 U CN 201520898905U CN 205193043 U CN205193043 U CN 205193043U
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- probe
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- nitric acid
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Abstract
The utility model provides a detection apparatus for nitric acid manufacture tail gas in this technical scheme, waits the waste gas that detects and at first gets rid of moisture through gas dryer and in order to avoid its interference to the testing result, then get into the intake pipe, obtains pressure after stream pressure is adjusted to force pump pressurization, surge damping valve, the more stable air current of flow is used for the detection. Then the air current get into to detect the chamber, connects the nitrogen dioxide probe on detecting the chamber, the content that the oxygen probe is arranged in listening gas different substance, and the probe will detect data transmission immediately and be used for data processing to monolithic microcontroller, thereby the data transmission after monolithic microcontroller will handle forms the testing result to the display screen. The blast pipe of connection on detecting the chamber is used for the gas outgoing who detects the intracavity, and is located the constant temperature equipment of casing and can provides temperature environment invariable relatively for test probe, helps promoting the stability and the accuracy of detection data.
Description
Technical field
The utility model relates to nitric acid industry technical field, is specifically related to a kind of pick-up unit of nitric acid production tail gas.
Background technology
Containing certain density oxides of nitrogen in the tail gas of nitric acid production, its concentration, usually beyond the emission standard of country, needs to carry out denitration process, therefore carries out Real-Time Monitoring to exhaust gas component most important for grasp emissions data.In addition, by the on-line checkingi analysis of the oxygen in reaction end gas, ammonia, oxides of nitrogen, course of reaction parameter can be obtained for evaluating nitric acid synthesis efficiency.The on-line checkingi of current tail gas is widely used in oil, chemical industry, metallurgy, environmental protection, automobile etc., but the industrialization online detection instrument being exclusively used in nitric acid production tail gas is also fewer, researcher is had to adopt mass spectrometer, but, maintenance complexity higher for the Tail gas measuring cost of suitability for industrialized production, applicability is not strong.
Another kind of Tail gas measuring mode is then in course of reaction, adopt infrared gas analyzer and the combined detection system of magnetic oxygen instrument, although this kind of mode can the concentration of on-line checkingi multiple gases simultaneously, but there is the shortcomings such as cost is high, equipment is complicated, and portability is poor equally.
Summary of the invention
The utility model is intended to the technological deficiency for prior art, provides a kind of pick-up unit of nitric acid production tail gas, with the technical matters that the related detection device cost solving prior art is higher.
Another technical matters to be solved in the utility model is that the associated gas of prior art detects, analytical equipment is poor for applicability to nitric acid production tails assay.
For realizing above technical purpose, the utility model by the following technical solutions:
A kind of pick-up unit of nitric acid production tail gas, comprise gas flow dryer, forcing pump, thermostat, oxygen is popped one's head in, single chip microcontroller, test chamber, nitrogen dioxide is popped one's head in, gas outlet, display screen, draft tube, pressure maintaining valve, housing, wherein thermostat, single chip microcontroller, test chamber is fixedly connected on enclosure interior, oxygen probe and nitrogen dioxide probe are connected in test chamber, display screen is fixedly connected with on the surface of the housing, oxygen is popped one's head in, nitrogen dioxide is popped one's head in, display screen is connected with single chip microcontroller respectively by wire, gas outlet one end is connected with test chamber, the other end extend out to outside housing, draft tube one end is connected with test chamber, the other end is connected with gas flow dryer, forcing pump and pressure maintaining valve are connected in draft tube respectively.
Preferably, described test chamber is also connected with nitrogen monoxide probe.
Preferably, gas flow dryer is positioned at outside; Preferred further on this basis, pressure maintaining valve is positioned at outside.
Preferably, described draft tube is also in series with gas flow stabilizing valve.
In above technical scheme, first waste gas to be detected remove moisture to avoid it to the interference of testing result through gas flow dryer, then enter draft tube, regulate through forcing pump pressurization, pressure maintaining valve and to obtain the more stable air-flow of pressure, flow after stream pressure for detecting.Then air-flow enters test chamber, be connected to the nitrogen dioxide probe in test chamber, the content of oxygen probe for detecting different material in gas, probe transfers to single chip microcontroller for data processing with being about to detect data, and the data after process are transferred to display screen thus form testing result by single chip microcontroller.Be connected to gas outlet in test chamber for being discharged by the gas in test chamber, and the thermostat being positioned at housing the temperature environment of relative constancy be can provide for detection probe, the stability and accuracy that detect data contributed to promoting.Wherein, described thermostat can be arbitraryly can provide the device of temperature constant state for gas, includes but not limited to miniature air-conditioner, air compressor etc.
In optimal technical scheme, arranging nitrogen monoxide detection probe is further sensing range in order to amplification device; Gas flow dryer or pressure maintaining valve are arranged at outside and are then more convenient to turnaround of unit; In draft tube, series connection gas flow stabilizing valve is in order to further stabilizing gas flow velocity further, promotes detection accuracy.The utility model achieves outstanding technique effect with the technological improvement of novelty, simultaneously cost lower, be easy to realize, therefore there is good promotion prospect.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment 1;
In figure:
1, gas flow dryer 2, forcing pump 3, thermostat 4, oxygen probe
5, single chip microcontroller 6, test chamber 7, nitrogen dioxide probe 8, gas outlet
9, display screen 10, draft tube 11, pressure maintaining valve 12, housing
Embodiment
Below will be described in detail embodiment of the present utility model.In order to avoid too much unnecessary details, in the examples below to belonging to known structure or function will not be described in detail.Apart from outside definition, technology used in following examples and scientific terminology have the identical meanings generally understood with the utility model one of ordinary skill in the art.
Embodiment 1
A kind of pick-up unit of nitric acid production tail gas, it is characterized in that comprising gas flow dryer 1, forcing pump 2, thermostat 3, oxygen probe 4, single chip microcontroller 5, test chamber 6, nitrogen dioxide probe 7, gas outlet 8, display screen 9, draft tube 10, pressure maintaining valve 11, housing 12, wherein thermostat 3, single chip microcontroller 5, it is inner that test chamber 6 is fixedly connected on housing 12, oxygen probe 4 and nitrogen dioxide probe 7 are connected in test chamber 6, display screen 9 is fixedly connected on housing 12 on the surface, oxygen probe 4, nitrogen dioxide probe 7, display screen 9 is connected with single chip microcontroller 5 respectively by wire, gas outlet 8 one end is connected with test chamber 6, the other end extend out to outside housing 12, draft tube 10 one end is connected with test chamber 6, the other end is connected with gas flow dryer 1, forcing pump 2 and pressure maintaining valve 11 are connected in draft tube 10 respectively.
On the basis of above technical scheme, meet the following conditions:
It is outside that gas flow dryer 1 is positioned at housing 12; It is outside that pressure maintaining valve 11 is positioned at housing 12.
Embodiment 2
A kind of pick-up unit of nitric acid production tail gas, it is characterized in that comprising gas flow dryer 1, forcing pump 2, thermostat 3, oxygen probe 4, single chip microcontroller 5, test chamber 6, nitrogen dioxide probe 7, gas outlet 8, display screen 9, draft tube 10, pressure maintaining valve 11, housing 12, wherein thermostat 3, single chip microcontroller 5, it is inner that test chamber 6 is fixedly connected on housing 12, oxygen probe 4 and nitrogen dioxide probe 7 are connected in test chamber 6, display screen 9 is fixedly connected on housing 12 on the surface, oxygen probe 4, nitrogen dioxide probe 7, display screen 9 is connected with single chip microcontroller 5 respectively by wire, gas outlet 8 one end is connected with test chamber 6, the other end extend out to outside housing 12, draft tube 10 one end is connected with test chamber 6, the other end is connected with gas flow dryer 1, forcing pump 2 and pressure maintaining valve 11 are connected in draft tube 10 respectively.
On the basis of above technical scheme, meet the following conditions:
Described test chamber 6 is also connected with nitrogen monoxide probe.
It is outside that gas flow dryer 1 is positioned at housing 12; It is outside that pressure maintaining valve 11 is positioned at housing 12.
Described draft tube 10 is also in series with gas flow stabilizing valve.
Embodiment 3
A kind of pick-up unit of nitric acid production tail gas, it is characterized in that comprising gas flow dryer 1, forcing pump 2, thermostat 3, oxygen probe 4, single chip microcontroller 5, test chamber 6, nitrogen dioxide probe 7, gas outlet 8, display screen 9, draft tube 10, pressure maintaining valve 11, housing 12, wherein thermostat 3, single chip microcontroller 5, it is inner that test chamber 6 is fixedly connected on housing 12, oxygen probe 4 and nitrogen dioxide probe 7 are connected in test chamber 6, display screen 9 is fixedly connected on housing 12 on the surface, oxygen probe 4, nitrogen dioxide probe 7, display screen 9 is connected with single chip microcontroller 5 respectively by wire, gas outlet 8 one end is connected with test chamber 6, the other end extend out to outside housing 12, draft tube 10 one end is connected with test chamber 6, the other end is connected with gas flow dryer 1, forcing pump 2 and pressure maintaining valve 11 are connected in draft tube 10 respectively.
Above embodiment of the present utility model has been described in detail, but described content is only preferred embodiment of the present utility model, not in order to limit the utility model.All make in application range of the present utility model any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. the pick-up unit of a nitric acid production tail gas, it is characterized in that comprising gas flow dryer (1), forcing pump (2), thermostat (3), oxygen probe (4), single chip microcontroller (5), test chamber (6), nitrogen dioxide probe (7), gas outlet (8), display screen (9), draft tube (10), pressure maintaining valve (11), housing (12), wherein thermostat (3), single chip microcontroller (5), it is inner that test chamber (6) is fixedly connected on housing (12), oxygen probe (4) and nitrogen dioxide probe (7) are connected in test chamber (6), display screen (9) is fixedly connected on housing (12) on the surface, oxygen probe (4), nitrogen dioxide probe (7), display screen (9) is connected with single chip microcontroller (5) respectively by wire, gas outlet (8) one end is connected with test chamber (6), the other end extend out to housing (12) outward, draft tube (10) one end is connected with test chamber (6), the other end is connected with gas flow dryer (1), forcing pump (2) and pressure maintaining valve (11) are connected in draft tube (10) respectively.
2. the pick-up unit of nitric acid production tail gas according to claim 1, is characterized in that described test chamber (6) being also connected with nitrogen monoxide probe.
3. the pick-up unit of nitric acid production tail gas according to claim 1, is characterized in that gas flow dryer (1) is positioned at housing (12) outside.
4. the pick-up unit of nitric acid production tail gas according to claim 3, is characterized in that pressure maintaining valve (11) is positioned at housing (12) outside.
5. the pick-up unit of nitric acid production tail gas according to claim 1, is characterized in that described draft tube (10) is also in series with gas flow stabilizing valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520898905.5U CN205193043U (en) | 2015-11-11 | 2015-11-11 | Detection apparatus for nitric acid manufacture tail gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520898905.5U CN205193043U (en) | 2015-11-11 | 2015-11-11 | Detection apparatus for nitric acid manufacture tail gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205193043U true CN205193043U (en) | 2016-04-27 |
Family
ID=55786022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520898905.5U Expired - Fee Related CN205193043U (en) | 2015-11-11 | 2015-11-11 | Detection apparatus for nitric acid manufacture tail gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205193043U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021179691A1 (en) * | 2020-03-12 | 2021-09-16 | 江苏维尤纳特精细化工有限公司 | Online waste gas monitoring apparatus for use in chlorothalonil industrial production |
-
2015
- 2015-11-11 CN CN201520898905.5U patent/CN205193043U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021179691A1 (en) * | 2020-03-12 | 2021-09-16 | 江苏维尤纳特精细化工有限公司 | Online waste gas monitoring apparatus for use in chlorothalonil industrial production |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160427 Termination date: 20171111 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |