CN204903402U - High temperature conversion stove - Google Patents
High temperature conversion stove Download PDFInfo
- Publication number
- CN204903402U CN204903402U CN201520686674.1U CN201520686674U CN204903402U CN 204903402 U CN204903402 U CN 204903402U CN 201520686674 U CN201520686674 U CN 201520686674U CN 204903402 U CN204903402 U CN 204903402U
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- China
- Prior art keywords
- chamber
- high temperature
- molybdenum sheet
- air
- inlet chamber
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Abstract
The utility model discloses a high temperature conversion stove, including intake pipe, outlet duct, the chamber of admitting air, lie in the chamber top of admitting air the play air cavity, connect in admit air the chamber with go out a plurality of heating pipes between the air cavity, install in the inside molybdenum sheet of heating pipe, the intake pipe communicate in the chamber of admitting air, the outlet duct communicate in go out the air cavity, the intercommunication has the back flow on the outlet duct, the back flow communicate in the chamber of admitting air, be provided with the check valve on the back flow. The utility model discloses the structure is comparatively simple, can make gaseously and the molybdenum sheet uniform contact to react comparatively even, the NOx transformation rate is higher, the problem that local molybdenum sheet became invalid can not appear, practices thrift the cost.
Description
Technical field
The utility model relates to a kind of high temperature shift stove, belongs to environment monitoring technical field.
Background technology
The trend of global industry makes to become more and more important to the monitoring of industrial gas emission, wherein particularly important to the monitoring of NOX, because NOX is the one of the main reasons forming acid rain.
NO2 is a kind of poisonous brownish red gas, and being the main pollutant component of one in surrounding air, is also the key factor causing acid rain.Improving constantly in recent years along with people's environmental consciousness, for harmful gas in air content and control more and more pay attention to, therefore the requirement of monitoring technology is also being improved constantly.Chemical analysis is a kind of monitoring method of current common employing, have that accuracy of detection is low, consumptive material is many, workload is large, particularly the shortcomings such as Real-Time Monitoring are difficult to, therefore progressively substitute by the chemoluminescence method of advanced person, the party's ratio juris is: reacting according to NO and excessive O3 generates the NO2 of excited state, the NO2 molecule of excited state gets back to low-energy state by launching photon to discharge unnecessary energy, its luminous intensity is directly proportional to the concentration of NO this principle, obtains the concentration of NO by detecting luminous intensity.Because NO2 does not react with O3, then utilize molybdenum, in the reduction reaction of high temperature (315 DEG C), the NO2 existed in sample air-flow is reduced to NO to the monitoring of NO2, sample air-flow is by entering reaction chamber again after NOx converter, and now analysis-e/or determining is the concentration of NOx total in air.The concentration of NOx and NO subtracts each other the concentration that can obtain NO2.Can find out that NOx converter is the vitals of analyser by said process.Converter of the prior art, such as NOx converter disclosed in Chinese patent literature CN201740739U, gas can not evenly contact with molybdenum sheet, therefore easily cause reaction uneven, NOx conversion ratio is lower, and local molybdenum sheet lost efficacy and causes globality to scrap, and wasted larger.
Utility model content
Therefore, the purpose of this utility model is to overcome defect of the prior art, provides a kind of reaction evenly, the high temperature shift stove that conversion ratio is high.
To achieve these goals, a kind of high temperature shift stove of the present utility model, comprise draft tube, escape pipe, inlet chamber, outlet chamber above inlet chamber, the molybdenum sheet that is connected to some heating tubes between described inlet chamber and described outlet chamber, is installed on described heating tube inside, described draft tube is communicated in described inlet chamber, and described escape pipe is communicated in described outlet chamber; Described escape pipe is communicated with recirculatory pipe, and described recirculatory pipe is communicated in described inlet chamber, and described recirculatory pipe is provided with retaining valve.
Described draft tube is provided with the first valve and flowmeter.
Described outlet chamber is provided with rain glass and thermometer.
Described heating tube is electric heating tube.
Adopt technique scheme, high temperature shift stove of the present utility model, during use by draft tube to insufflation gas in inlet chamber, gas is substantial uniform in inlet chamber enters heating tube, and flow from one end of heating tube to the other end, react with the molybdenum sheet of heating tube inside in flow process, generate NO, then enter outlet chamber, gas in outlet chamber enters escape pipe, gas is discharged by the second valve now can opened on escape pipe, also the second valve on escape pipe can be closed, gas is made to be back to inlet chamber by recirculatory pipe, again again heating tube is entered, the gas do not reacted completely is reacted with molybdenum sheet again.The utility model structure is comparatively simple, can make gas and molybdenum sheet uniform contact, thus reaction is comparatively even, and NOx conversion ratio is higher, there will not be the problem that local molybdenum sheet lost efficacy, cost-saving.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, wherein:
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, set forth the utility model further.In the following detailed description, the mode only by illustrating describes some one exemplary embodiment of the present utility model.Undoubtedly, those of ordinary skill in the art can recognize, when not departing from spirit and scope of the present utility model, can revise by various different mode to described embodiment.Therefore, accompanying drawing is illustrative with being described in essence, instead of for limiting the protection domain of claim.
As shown in Figure 1, the present embodiment provides a kind of high temperature shift stove, comprise draft tube 1, escape pipe 2, inlet chamber 3, outlet chamber 4 above inlet chamber 3, the molybdenum sheet 6 that is connected to some heating tubes 5 between described inlet chamber 3 and described outlet chamber 4, is installed on described heating tube 5 inside, described draft tube 1 is communicated in described inlet chamber 3, and described escape pipe 2 is communicated in described outlet chamber 4; Described escape pipe 2 is communicated with recirculatory pipe 7, and described recirculatory pipe 7 is communicated in described inlet chamber 3, and described recirculatory pipe 7 is provided with retaining valve 8.
Described draft tube 1 is provided with the first valve 9 and flowmeter 10.
Described outlet chamber 4 is provided with rain glass 11 and thermometer 12.
Described heating tube 5 is electric heating tube.
Adopt technique scheme, high temperature shift stove of the present utility model, draft tube 1 is passed through to insufflation gas in inlet chamber 3 during use, gas is substantial uniform in inlet chamber 3 enters heating tube 5, and flow from one end of heating tube 5 to the other end, react with the molybdenum sheet 6 of heating tube 5 inside in flow process, generate NO, then enter outlet chamber 4, gas in outlet chamber 4 enters escape pipe 2, gas is discharged by the second valve 13 now can opened on escape pipe 2, also the second valve 13 on escape pipe 2 can be closed, gas is made to be back to inlet chamber 3 by recirculatory pipe 7, again heating tube 5 is again entered, the gas do not reacted completely is reacted with molybdenum sheet 6 again.The utility model structure is comparatively simple, can make gas and molybdenum sheet 6 uniform contact, thus reaction is comparatively even, and NOx conversion ratio is higher, there will not be the problem that local molybdenum sheet 6 lost efficacy, cost-saving.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of extending out or variation be still among the protection domain that the utility model creates.
Claims (4)
1. a high temperature shift stove, it is characterized in that: comprise draft tube, escape pipe, inlet chamber, outlet chamber above inlet chamber, the molybdenum sheet that is connected to some heating tubes between described inlet chamber and described outlet chamber, is installed on described heating tube inside, described draft tube is communicated in described inlet chamber, and described escape pipe is communicated in described outlet chamber; Described escape pipe is communicated with recirculatory pipe, and described recirculatory pipe is communicated in described inlet chamber, and described recirculatory pipe is provided with retaining valve.
2. high temperature shift stove according to claim 1, is characterized in that: described draft tube is provided with the first valve and flowmeter.
3. high temperature shift stove according to claim 2, is characterized in that: described outlet chamber is provided with rain glass and thermometer.
4. high temperature shift stove according to claim 3, is characterized in that: described heating tube is electric heating tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520686674.1U CN204903402U (en) | 2015-09-07 | 2015-09-07 | High temperature conversion stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520686674.1U CN204903402U (en) | 2015-09-07 | 2015-09-07 | High temperature conversion stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204903402U true CN204903402U (en) | 2015-12-23 |
Family
ID=54925570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520686674.1U Expired - Fee Related CN204903402U (en) | 2015-09-07 | 2015-09-07 | High temperature conversion stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204903402U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106645104A (en) * | 2016-12-09 | 2017-05-10 | 浙江浙大鸣泉科技有限公司 | Detection system for nitrogen oxide in automobile tail gas |
-
2015
- 2015-09-07 CN CN201520686674.1U patent/CN204903402U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106645104A (en) * | 2016-12-09 | 2017-05-10 | 浙江浙大鸣泉科技有限公司 | Detection system for nitrogen oxide in automobile tail gas |
| CN106645104B (en) * | 2016-12-09 | 2019-05-24 | 浙江浙大鸣泉科技有限公司 | A kind of nitrogen oxide in automobile exhaust detection system |
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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: 20151223 Termination date: 20190907 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |