CN203572812U - Device for measuring concentration of sulfur dioxide at outlet of converter during production of sulfuric acid - Google Patents
Device for measuring concentration of sulfur dioxide at outlet of converter during production of sulfuric acid Download PDFInfo
- Publication number
- CN203572812U CN203572812U CN201320671316.4U CN201320671316U CN203572812U CN 203572812 U CN203572812 U CN 203572812U CN 201320671316 U CN201320671316 U CN 201320671316U CN 203572812 U CN203572812 U CN 203572812U
- Authority
- CN
- China
- Prior art keywords
- sample gas
- sulfur dioxide
- eudiometer tube
- gas
- leveling bottle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The utility model relates to a device for measuring the concentration of sulfur dioxide at an outlet of converter during production of a sulfuric acid. The device comprises a gas measuring pipe, a water level bottle, a t-branch pipe, a reaction bottle, a lifting mechanism, a water stopping clamp and a burette, wherein a sample gas in a certain volume is measured by the gas measuring pipe; then the sulfur dioxide is enabled to pass through the reaction bottle containing a standard iodine solution by utilizing a hydraulic differential method matched with the water level bottle, so that the sulfur dioxide in the sample gas can react with the quantitative iodine solution; and the iodine solution on the excess iodine solution is carried out by using sodium thiosulfate. Thus, the concentration of the sulfur dioxide is calculated by utilizing the quantity of iodine consumed by the sulfur dioxide and the volume of the sample gas. The device is not involved in the volume of residual gas, so that the interference of sulfur trioxide to a measuring value of the sulfur dioxide is avoided.
Description
Technical field
The utility model relates to a kind of pick-up unit, specifically converter outlet sulfur dioxide concentration determinator in a kind of gas washing in SA production.
Background technology
China's pyrite-based sulfuric acid production twice absorption technique of twice conversion that adopt more, for accurate production control index, need sulfur dioxide concentration in frequent mensuration system, when there is conversion ratio reduction, need to measure the concentration of converter outlet sulphuric dioxide, to judge the position of breaking down.When using existing apparatus to measure converter outlet sulfur dioxide concentration, be once converted for a long time device outlet measured value and perplexed higher than the abnormality of import measured value.Judge by analysis, converter outlet sulphur dioxide measuring value is higher is in the gas of absorption (after the conversion without), to contain a large amount of sulfuric anhydrides because converter, sulfuric anhydride very easily reacts with water and generates sulfuric acid, and existing apparatus is when sulfur dioxide absorption, sulfuric anhydride in sample gas is sponged simultaneously, even may sample the volume of sulfuric anhydride in gas far away more than the volume of sulphuric dioxide, thereby residual air volume is significantly reduced, according to measuring principle, residual air volume and sulfur dioxide concentration are inversely proportional to, residual air volume is fewer, corresponding sulfur dioxide concentration calculated value is just higher.
In order to address this problem, before the reaction bulb of people when existing determinator is measured sulphuric dioxide, add an absorption bottle that 98% concentrated sulphuric acid is housed, first filter out sulfuric anhydride (because 98% concentrated sulphuric acid is better to sulfuric anhydride assimilation effect), measure again the sulphuric dioxide in residual gas, although this absorption bottle has filtered out sulfuric anhydride, but due to the impact on residual air volume of the volume of the sulfuric anhydride of not considering to be absorbed, even if the measured value of residual air volume is starkly lower than actual value, while utilizing residual air volume to calculate sulphuric dioxide, result produces deviation, therefore still can not get rid of the interference to measuring.Apply above-mentioned all kinds of pick-up unit through repeatedly practice, determination data all can not reach ideal effect, can not reflect and produce reality.For meeting Reducing Cost in Enterprises, increase economic efficiency, reduce the industry policy of pollutant emission, accurately analysis of production control, improves Sulphur Dioxide rate, and Accurate Determining converter outlet sulfur dioxide concentration has become problem demanding prompt solution.
Utility model content
The purpose of this utility model is just to provide converter outlet sulfur dioxide concentration determinator in a kind of gas washing in SA production, to solve existing pick-up unit, detects the large problem of sulfur dioxide concentration error.
The utility model is achieved in that converter outlet sulfur dioxide concentration determinator in a kind of gas washing in SA production, includes:
Eudiometer tube, upper end is connected with the entrance point of three-way pipe, and lower end is connected with leveling bottle by long soft-pipe made, for storing sample gas and whiteruss and measuring the volume of sample gas;
Leveling bottle, is connected with described eudiometer tube lower end by long soft-pipe made, is contained with whiteruss, for control importing and the derivation of sample gas in described eudiometer tube by lifting;
Three-way pipe, entrance point is connected with the upper end of described eudiometer tube, two endpiece are connected with converter pipeline with described reaction bulb respectively, for coordinate from described converter pipeline to described eudiometer tube with described leveling bottle in, import sample gas, and import sample gas in from described eudiometer tube to described reaction bulb;
Reaction bulb, an endpiece by described three-way pipe is connected with described eudiometer tube, for holding quantitative criterion iodine solution and indicator starch, and produces and reacts with sulphuric dioxide in sample gas;
Water is folder only, between being arranged on two endpiece of described long soft-pipe made and described three-way pipe, for coordinating to realize sample gas with described leveling bottle and described eudiometer tube and whiteruss imports and derives;
Buret, for holding sodium thiosulfate, and with described reaction bulb in excessive iodine liquid carry out titration;
Elevating mechanism, includes elevating control base and hoistable platform, by described hoistable platform, places described leveling bottle, for controlling the lifting of described leveling bottle.
The utility model throughput tracheae measures the sample gas of certain volume, then utilizes hydraulic pressure difference method, with the coordinating sample gas by filling the reaction bulb of standard iodine solution of leveling bottle, sulphuric dioxide in sample gas and quantitative iodine liquid is reacted.Then excessive iodine liquid carries out back titration by sodium thiosulfate, controls the lifting of leveling bottle 2 by controlling elevating mechanism so that sample gas import and export convenient and standard.The amount of the iodine consuming with sulphuric dioxide and sample gas volume, calculate the concentration of sulphuric dioxide, and the testing process of this device does not relate to residual air volume, thereby has got rid of the interference of sulfuric anhydride to sulphur dioxide measuring value.The utility model has solved the difficult problem in Accurate Measurement converter outlet sulfur dioxide concentration, has filled up a blank in gas washing in SA production control analysis.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, eudiometer tube, 2, leveling bottle, 3, water folder only, 4, three-way pipe, 5, converter pipeline, 6, long soft-pipe made, 7, reaction bulb, 8, elevating mechanism.
Embodiment
As shown in Figure 1, the utility model include that eudiometer tube 1, leveling bottle 2, three-way pipe 4, long soft-pipe made 6, reaction bulb 7, water only press from both sides 3, elevating mechanism 8 and buret.
Wherein, the upper end of eudiometer tube 1 is connected with the entrance point of three-way pipe 4, and lower end is connected with leveling bottle 2 by long soft-pipe made 6, for storing sample gas and whiteruss and measuring the volume of sample gas.
Leveling bottle 2, is connected with eudiometer tube 1 lower end by long soft-pipe made 6, is contained with whiteruss, for come importing and the derivation of the interior sample gas of controlled quentity controlled variable tracheae 1 by lifting.The length of long soft-pipe made 6 need be greater than the length of eudiometer tube 1.
Three-way pipe 4, entrance point is connected with the upper end of eudiometer tube 1, two endpiece are connected with converter pipeline with reaction bulb 7 by sebific duct respectively, the sebific duct being connected with reaction bulb 7 will be tried one's best shorter, for coordinating with leveling bottle 2 from converter pipeline to the interior importing sample of eudiometer tube 1 gas, and from eudiometer tube 1 to the interior importing sample of reaction bulb 7 gas.
Water only presss from both sides 3, between being arranged on two endpiece of long soft-pipe made and three-way pipe 4, for coordinating to realize sample gas with leveling bottle 2 and eudiometer tube 1 and whiteruss imports and derives.
Buret (not shown), for holding sodium thiosulfate, and with reaction bulb 7 in excessive iodine liquid carry out titration.
At elevating mechanism 8, include elevating control base and hoistable platform, leveling bottle 2 be placed on this hoistable platform, by controlling elevating mechanism, control the lifting of leveling bottle 2 so that sample gas import and export convenient and standard.
Because sulphuric dioxide and sulfuric anhydride can react with water the variation that causes sample gas composition or volume, thereby affect measurement result.So need to adopt whiteruss to make boundary's matter, because whiteruss water white transparency, stable in properties, does not all react with sulphuric dioxide and sulfuric anhydride under normal temperature, can guarantee the accuracy of sample gas volume.Under square one, the measured sulphur dioxide measuring value of the utility model obviously reduces, the situation in realistic production.
The course of work of the present utility model is:
First, in leveling bottle 2, hold about 600ml whiteruss, then improve leveling bottle 2, the whiteruss in leveling bottle 2 is slowly flowed into and is full of the eudiometer tube 1 of 500ml.
Second step, with three-way pipe 4, coordinate sampling pipe by eudiometer tube 1 and converter pipeline 5 UNICOMs, open between the sampling of converter pipeline 5, and slowly reduce leveling bottle 2, whiteruss is slowly flowed into leveling bottle 2 from eudiometer tube 1, utilize simultaneously pressure that liquid level difference produces by sample gas from converter pipeline 5 soakage tracheaes 1, make eudiometer tube 1 take the sample gas of certain volume, displacement is to get the sample gas that composition approaches reformed gas outlet repeatedly, now record sample gas volume V, water only presss from both sides 3 by eudiometer tube 1 upper end closed.
The 3rd step, with transfer pipet to adding in 200ml reaction bulb 7 the 10ml0.1mol/L iodine standard solution v1(must be excessive), with graduated cylinder, to the starch indicator solution that adds 2ml10g/L in reaction bulb, now solution colour should be mazarine.
The 4th step, connects by three-way pipe 4 eudiometer tube 1 of adopting sample gas with the reaction bulb 7 that fills standard iodine solution.
The 4th step, the water of opening upper end only presss from both sides 3, slowly improves leveling bottle 2, makes the liquid in leveling bottle 2 slowly flow back to eudiometer tube 1, and the whiteruss flowing back to is clamp-oned the sample gas in eudiometer tube 1 in reaction bulb 7 and quantitative standard iodine solution reaction.Now in reaction bulb, solution colour should remain blue, proves that iodine is excessive.
Finally, take off reaction bulb, with 50ml base buret, to the sodium thiosulfate standard solution that drips 0.1mol/L in reaction bulb, while dripping, shake reaction bulb, until solution is become colorless as terminal by blueness in bottle, the volume v2 of the sodium thiosulfate standard solution that record consumes.
The measuring principle of the utility model device:
When the sample gas of certain volume passes through quantitative iodine standard solution, sulphuric dioxide wherein and Iod R generate sulfuric acid, excessive iodine sodium thiosulfate standard solution back titration, take starch as indicator, use the consumption of the iodine that reacts consumed with sulphuric dioxide and the volume of sample gas to calculate the concentration of sulphuric dioxide in gas.
Reaction equation is: SO2+2H2O+I2=H2SO4+2HI
Computing formula is:
SO
2%=
V1-----------iodine standard solution consumption in formula, ml;
The concentration of c1-----------iodine standard solution, mol/L;
The concentration of c2-----------sodium thiosulfate standard solution, mol/L;
V2--------sodium thiosulfate standard solution consumption, ml;
The volume of V--------sample gas, ml;
The every mM sulfur dioxide gas of 10.945---------volume, ml/mmol.
Claims (1)
1. a converter outlet sulfur dioxide concentration determinator in gas washing in SA production, is characterized in that, includes:
Eudiometer tube, upper end is connected with the entrance point of three-way pipe, and lower end is connected with leveling bottle by long soft-pipe made, for storing sample gas and whiteruss and measuring the volume of sample gas;
Leveling bottle, is connected with described eudiometer tube lower end by long soft-pipe made, is contained with whiteruss, for control importing and the derivation of sample gas in described eudiometer tube by lifting;
Three-way pipe, entrance point is connected with the upper end of described eudiometer tube, two endpiece are connected with converter pipeline with described reaction bulb respectively, for coordinate from described converter pipeline to described eudiometer tube with described leveling bottle in, import sample gas, and import sample gas in from described eudiometer tube to described reaction bulb;
Reaction bulb, an endpiece by described three-way pipe is connected with described eudiometer tube, for holding quantitative criterion iodine solution and indicator starch, and produces and reacts with sulphuric dioxide in sample gas;
Water is folder only, between being arranged on two endpiece of described long soft-pipe made and described three-way pipe, for coordinating to realize sample gas with described leveling bottle and described eudiometer tube and whiteruss imports and derives;
Buret, for holding sodium thiosulfate, and with described reaction bulb in excessive iodine liquid carry out titration;
Elevating mechanism, includes elevating control base and hoistable platform, by described hoistable platform, places described leveling bottle, for controlling the lifting of described leveling bottle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320671316.4U CN203572812U (en) | 2013-10-29 | 2013-10-29 | Device for measuring concentration of sulfur dioxide at outlet of converter during production of sulfuric acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320671316.4U CN203572812U (en) | 2013-10-29 | 2013-10-29 | Device for measuring concentration of sulfur dioxide at outlet of converter during production of sulfuric acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203572812U true CN203572812U (en) | 2014-04-30 |
Family
ID=50540539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320671316.4U Expired - Fee Related CN203572812U (en) | 2013-10-29 | 2013-10-29 | Device for measuring concentration of sulfur dioxide at outlet of converter during production of sulfuric acid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203572812U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784692A (en) * | 2014-12-17 | 2016-07-20 | 陕西延长石油（集团）有限责任公司延安炼油厂 | Method for determining sulfur dioxide in flue gas |
| CN109959625A (en) * | 2019-03-21 | 2019-07-02 | 成都凯天电子股份有限公司 | On-line analysis detects SO2The method of content |
| CN113387328A (en) * | 2021-08-09 | 2021-09-14 | 招远市汇潮新能源科技有限公司 | Hydrogen chloride generator |
-
2013
- 2013-10-29 CN CN201320671316.4U patent/CN203572812U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784692A (en) * | 2014-12-17 | 2016-07-20 | 陕西延长石油（集团）有限责任公司延安炼油厂 | Method for determining sulfur dioxide in flue gas |
| CN105784692B (en) * | 2014-12-17 | 2018-08-14 | 陕西延长石油（集团）有限责任公司延安炼油厂 | The assay method of sulfur dioxide in flue gas |
| CN109959625A (en) * | 2019-03-21 | 2019-07-02 | 成都凯天电子股份有限公司 | On-line analysis detects SO2The method of content |
| CN113387328A (en) * | 2021-08-09 | 2021-09-14 | 招远市汇潮新能源科技有限公司 | Hydrogen chloride generator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203572812U (en) | Device for measuring concentration of sulfur dioxide at outlet of converter during production of sulfuric acid | |
| CN202748091U (en) | Gas molar volume measuring device | |
| CN103033600A (en) | Determination method and determination device for ammonia escape | |
| CN104090078B (en) | A kind of method and system measuring sulfur dioxide in flue gas and sulfuric anhydride | |
| CN110927328A (en) | Method for measuring content of soluble hydrogen sulfide in desulfurization solution | |
| CN204495711U (en) | A kind of concentration measurements device | |
| CN211627359U (en) | Detecting system for sulfur trioxide content in flue gas | |
| CN104865251A (en) | Method for measuring content of hydrogen sulfide in gas by titrimetric analysis | |
| CN113008818B (en) | Method for measuring acid mist content in sulfuric acid production tail gas | |
| CN203365401U (en) | Economical semi-automatic titration device used for measuring carbonate bicarbonate ions | |
| CN105784692A (en) | Method for determining sulfur dioxide in flue gas | |
| CN205067266U (en) | Portable detection device of oxygen concentration chemistry volumetric method | |
| CN117647618A (en) | Analysis device for rapidly measuring equivalent concentration of carbon dioxide and application method thereof | |
| CN202693386U (en) | Sampling device used in process of measuring SO3 in smoke | |
| CN205861640U (en) | A kind of vehicle-mounted natural gas sulfurated hydrogen detection equipment | |
| CN102384936B (en) | Method for determining hydrogen sulfide concentration in liquid sulfur | |
| CN104198327A (en) | Device and method for determining content of carbon dioxide in ferrous disulfide | |
| CN202471670U (en) | Online monitor for content of sulfite of wet desulphurization system | |
| CN203899628U (en) | Distillation device for measuring sulfur dioxide of food | |
| CN201945558U (en) | Simple device for measuring sulfur dioxide content in air | |
| CN101089589A (en) | Gas measuring method measuring device of removing differential pressure affect | |
| CN104764854B (en) | Apparatus for determining content of carbon in manganese carbon alloy, and method thereof | |
| CN103487413A (en) | New detection method for volatile sulfides in surface seawater and atmosphere, and application thereof | |
| CN206772837U (en) | A kind of Gold Concentrate under Normal Pressure sulphur content determination device | |
| CN111189963A (en) | For SO2And CO2Simple separation device and detection method for mixed gas |
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: 20140430 Termination date: 20141029 |
|
| EXPY | Termination of patent right or utility model |