CN202351099U - Sampling device for sulfur trioxide - Google Patents
Sampling device for sulfur trioxide Download PDFInfo
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- CN202351099U CN202351099U CN2011203931721U CN201120393172U CN202351099U CN 202351099 U CN202351099 U CN 202351099U CN 2011203931721 U CN2011203931721 U CN 2011203931721U CN 201120393172 U CN201120393172 U CN 201120393172U CN 202351099 U CN202351099 U CN 202351099U
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Abstract
The utility model relates to a sampling device for a sulfur trioxide. The sampling device comprises a dust removing system, a sampling tube, a separating bottle, a U-shaped collecting tube, a cooling tank, a drying device and a sampling pump, wherein the sampling tube, the separating bottle, the U-shaped collecting tube, the drying device and the sampling pump are connected in sequence by adopting silicone tubes; the dust removing system is arranged at the front end of the sampling tube; and the U-shaped collecting tube is arranged in the cooling tank. The sampling device is simple in structure and is convenient to operate; the temperature of the sulfur trioxide can be quickly reduced by the cooling tank; the sulfur trioxide in fume can be collected quite well; and a foundation is laid for accurately analyzing the sulfur trioxide in the fume.
Description
Technical field
The utility model relates to a kind of sampling apparatus of gas, specifically is a kind of sampling apparatus of sulfuric anhydride.
Background technology
Sulfuric anhydride very easily combines with water vapour to form sulfuric acid vapor and etching apparatus.In recent years, increasing wet flue gas desulfurization device is widely used, because the humidity of clean flue gas is bigger behind the wet type desulfurizing, residual sulfuric anhydride very easily is converted into the sulfuric acid droplet and causes pipeline and corrosion on Equipment in the flue gas.Therefore, sample collecting and the analysis to sulfuric anhydride in the flue is very necessary.Sulfuric acid vapor condenses or attached to this specific character on the transmission line, cause present existing flue gas analyzer that this function that can measure sulfur trioxide content is not arranged as yet owing to sulfuric anhydride and water vapor very easily form.
CN200996910Y provides a kind of sampling apparatus of sulfuric anhydride; Comprise dedusting mechanism, sampling pipe, spiral collection tube and aspirating mechanism; Wherein dedusting mechanism is installed in the inlet end of sampling pipe; The endpiece of this sampling pipe is connected with the import of spiral collection tube through pipeline, and the import and export of spiral collection tube all is positioned at spiral upper end, and its outlet communicates with said aspirating mechanism through silica gel hose.But as under the higher environment of temperature, using this device collected specimens, can cause sulfuric anhydride in the spiral collection tube, to be collected not exclusively, thereby cause that sulfur trioxide content mensuration result has error.
Summary of the invention
The utility model problem to be solved provides the sampling apparatus of sulfuric anhydride in a kind of flue gas, particularly a kind of under hot environment to flue gas in the sampling apparatus of sulfuric anhydride, measure for sulfur trioxide content.
The sampling apparatus of the utility model sulfuric anhydride comprises dust pelletizing system, sampling pipe, separating bottle, U type collection tube, cooling bath, drying device and sampling pump; Wherein order adopts silicone tube to connect between sampling pipe, separating bottle, U type collection tube, drying device and the sampling pump, and dust pelletizing system is arranged on the sampling pipe front end, and U type collection tube is arranged in the cooling bath.
The utility model in use stretches into sampling pipe in the flue, and fixes through flange.Under the effect of sampling pump, the flue gas in the flue is extracted in the U type collection tube through separating bottle, make sulfuric anhydride be enriched in the collection tube, in order to subsequent analysis.
Above-mentioned dust pelletizing system is arranged on the sampling pipe front end, and dust pelletizing system is made up of dust removal head, absorbent cotton, entanglement.Dust removal head links to each other with sampling pipe through thread, and uses the high-temperature heat-resistance rubber belt sealing, prevents to reveal.Absorbent cotton plays except that dust, prevents that dust from getting into sampling pipe and impact analysis result's effect.Entanglement plays the fixedly effect of absorbent cotton.
Above-mentioned sampling pipe is two-layerly to be made up of inside and outside, and the middle layer is provided with heating jacket, is used for preventing that the flue gas of gathering from condensation taking place through sampling pipe the time.
Above-mentioned separating bottle is provided with draft tube and gas outlet, and draft tube is communicated with sampling pipe, and gas outlet is communicated with U type pipe.The effect of separating bottle is to prevent that the flue-gas temperature of coming out from sampling pipe is too high, directly gets into U type Guan Houhui and makes the cotton in the U type pipe that the phenomenon of burning arranged.
Above-mentioned U type collection tube in advance in the wetting cotton of U type pipe both sides fillings, makes sulfuric anhydride in collection process, be combined into acid mist with water and under being filtered by cotton before collected specimens.U type pipe is arranged in the cooling bath, and water on the rocks or other heat eliminating medium are set in the cooling bath, and requiring chilling temperature is below 4 ℃, is used for cooling off the acid mist of formation, makes it become liquid state and exists in the U type pipe, has been equipped with subsequent analysis.
Be filled with silica-gel desiccant in the above-mentioned drying device, be used for removing the water vapour in the sample gas, damage sampling system to prevent water steam from getting into sampling pump.
Above-mentioned sampling pump uses the sampling pump with flow metering function.
The utility model is simple in structure, and is easy to operate, and key is that cooling bath can make the sulfuric anhydride temperature reduce rapidly, can collect sulfur trioxide in smoke gas well, for analyzing the sampling apparatus of sulfuric anhydride in the flue gas.Separating bottle cleans with ultrapure water during analysis, and cleaning fluid and the sulfuric anhydride that is collected in the U type pipe are analyzed in the lump.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Below in conjunction with Fig. 1 and embodiment the utility model is specified:
As shown in Figure 1, the utility model comprises that dust pelletizing system, sampling pipe, separating bottle, U type collection tube, cooling bath, drying device and sampling pump constitute.Wherein dust pelletizing system is made up of dust removal head 1, absorbent cotton 2, entanglement 3.The dust removal head front portion is an entanglement 3, is used for fixing the absorbent cotton 2 that is used for dedusting.Sampling pipe is to be made up of interior pipe 4, outer tube 5 and heating jacket 6.Wherein inner and outer pipes all adopts steel.In being wrapped in, heating jacket 6 outside the pipe 4, puts into outer tube 5 in the lump.Outer tube 5 is connected with dust removal head 1 through joint 7.In pipe 4 communicate with dust removal head 1.Separating bottle 8 is connected with U type collection tube 9 through silicone tube.U type collection tube 9 is a glassware.Wherein be filled with wetting in advance cotton 10.U type collection tube 9 places the cooling bath 11 that ice cube is housed.U type collection tube 9 should place cooling bath 11 bottoms as far as possible, but should note should not contacting with cooling bath 11 bottoms, and the water level in the cooling bath 11 should not be higher than the U type mouth upper end of U type collection tube 9.Link to each other with silicone tube between U type collection tube 9, drying device 12 and the sampling pump 13.
The course of work of the utility model: when collected specimens, at first equipment needed thereby is connected by shown in Figure 1, carry out sample collecting then, sampling pipe is stretched into from the flue thief hatch, stretch into the position, sampling pipe is fixed through flange for sampling flue middle part.Open sampling pump 13 then, regulate flow, begin sampling, simultaneously the record sampling start time, when gathering required exhaust gas volumn, close sampling pump, stop sampling, the record sampling concluding time, both differences are the sampling time.After finishing, sampling takes off U type collection tube 9 and separating bottle 8.The U type mouth of U type collection tube 9 is connected with silicone tube, in order to avoid sulfuric anhydride is excessive.Separating bottle 8 takes off the back with the ultrapure water flushing, adopts a small amount of principle repeatedly during flushing, collects washing fluid.During analysis, analyze in the lump with the sample that is collected in the U type collection tube 9 collecting washing fluid.
Claims (10)
1. the sampling apparatus of a sulfuric anhydride, it is characterized in that: the sampling apparatus of sulfuric anhydride comprises dust pelletizing system, sampling pipe, separating bottle, U type collection tube, cooling bath, drying device and sampling pump; Wherein order adopts silicone tube to connect between sampling pipe, separating bottle, U type collection tube, drying device and the sampling pump, and dust pelletizing system is arranged on the sampling pipe front end, and U type collection tube is arranged in the cooling bath.
2. device according to claim 1 is characterized in that: dust pelletizing system is made up of dust removal head, absorbent cotton and entanglement.
3. device according to claim 2 is characterized in that: dust removal head links to each other with sampling pipe through thread, and uses the high-temperature heat-resistance rubber belt sealing, prevents to reveal.
4. device according to claim 1 is characterized in that: sampling pipe is two-layerly to be made up of inside and outside, and the middle layer is provided with heating jacket.
5. device according to claim 1 is characterized in that: separating bottle is provided with draft tube and gas outlet, and draft tube is communicated with sampling pipe, and gas outlet is communicated with U type pipe.
6. device according to claim 1 is characterized in that: U type collection tube loads wetting cotton in advance in U type pipe both sides before collected specimens.
7. device according to claim 1 is characterized in that: U type pipe is arranged in the cooling bath, and water on the rocks is set in the cooling bath.
8. according to claim 1 or 7 described devices, it is characterized in that: the temperature of cooling bath is below 4 ℃.
9. device according to claim 1 is characterized in that: be filled with silica-gel desiccant in the drying device.
10. device according to claim 1 is characterized in that: sampling pump is the sampling pump with flow metering function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203931721U CN202351099U (en) | 2011-10-17 | 2011-10-17 | Sampling device for sulfur trioxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203931721U CN202351099U (en) | 2011-10-17 | 2011-10-17 | Sampling device for sulfur trioxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202351099U true CN202351099U (en) | 2012-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203931721U Expired - Lifetime CN202351099U (en) | 2011-10-17 | 2011-10-17 | Sampling device for sulfur trioxide |
Country Status (1)
| Country | Link |
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| CN (1) | CN202351099U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245545A (en) * | 2013-05-24 | 2013-08-14 | 上海交通大学 | Pre-treatment and analysis device and method for online monitoring on H2SO4 acid mist in wet flue gas |
| CN103439152A (en) * | 2013-08-26 | 2013-12-11 | 上海明华电力技术工程有限公司 | Polymorphic sampling system and method for sulfur trioxide in exhaust of stationary pollution source |
| CN103471878A (en) * | 2012-11-13 | 2013-12-25 | 上海理工大学 | Sampling and collecting system of SO3 in wet method desulphurization system tail flue gas |
| CN104132832A (en) * | 2014-08-11 | 2014-11-05 | 深圳国技仪器有限公司 | Comprehensive intelligent atmosphere sampling device |
| CN106153827A (en) * | 2016-08-02 | 2016-11-23 | 华电电力科学研究院 | Online sulfur trioxide apparatus for measuring concentration based on liquid absorption method and method |
| CN109283023A (en) * | 2018-11-06 | 2019-01-29 | 华北电力大学（保定） | The experimental provision and application method that simulated flue gas content influences sulfur trioxide concentration |
| CN114623254A (en) * | 2020-12-10 | 2022-06-14 | 中国科学院大连化学物理研究所 | High-temperature-resistant corrosion-resistant valve for sampling flue gas and application thereof |
-
2011
- 2011-10-17 CN CN2011203931721U patent/CN202351099U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471878A (en) * | 2012-11-13 | 2013-12-25 | 上海理工大学 | Sampling and collecting system of SO3 in wet method desulphurization system tail flue gas |
| CN103245545A (en) * | 2013-05-24 | 2013-08-14 | 上海交通大学 | Pre-treatment and analysis device and method for online monitoring on H2SO4 acid mist in wet flue gas |
| CN103245545B (en) * | 2013-05-24 | 2015-12-02 | 上海交通大学 | H in wet flue gas 2sO 4the pre-treatment of acid mist on-line monitoring and analytical equipment and method |
| CN103439152A (en) * | 2013-08-26 | 2013-12-11 | 上海明华电力技术工程有限公司 | Polymorphic sampling system and method for sulfur trioxide in exhaust of stationary pollution source |
| CN103439152B (en) * | 2013-08-26 | 2015-08-12 | 上海明华电力技术工程有限公司 | The polymorphic sampling system of sulfuric anhydride and polymorphic method of testing in Concentration in Fixed Pollutants Source |
| CN104132832A (en) * | 2014-08-11 | 2014-11-05 | 深圳国技仪器有限公司 | Comprehensive intelligent atmosphere sampling device |
| CN106153827A (en) * | 2016-08-02 | 2016-11-23 | 华电电力科学研究院 | Online sulfur trioxide apparatus for measuring concentration based on liquid absorption method and method |
| CN109283023A (en) * | 2018-11-06 | 2019-01-29 | 华北电力大学（保定） | The experimental provision and application method that simulated flue gas content influences sulfur trioxide concentration |
| CN109283023B (en) * | 2018-11-06 | 2024-04-16 | 华北电力大学（保定） | Experimental device for simulating influence of smoke content on sulfur trioxide concentration and application method |
| CN114623254A (en) * | 2020-12-10 | 2022-06-14 | 中国科学院大连化学物理研究所 | High-temperature-resistant corrosion-resistant valve for sampling flue gas and application thereof |
| CN114623254B (en) * | 2020-12-10 | 2023-09-26 | 中国科学院大连化学物理研究所 | High-temperature-resistant corrosion-resistant valve for flue gas sampling and application thereof |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120725 |