CN211825963U - SO (SO)3Calibration system of standard substance generation and on-line analyzer - Google Patents
SO (SO)3Calibration system of standard substance generation and on-line analyzer Download PDFInfo
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- CN211825963U CN211825963U CN202020509827.6U CN202020509827U CN211825963U CN 211825963 U CN211825963 U CN 211825963U CN 202020509827 U CN202020509827 U CN 202020509827U CN 211825963 U CN211825963 U CN 211825963U
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- 239000000126 substance Substances 0.000 title claims abstract description 18
- 238000005070 sampling Methods 0.000 claims abstract description 46
- 238000006243 chemical reaction Methods 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000001816 cooling Methods 0.000 claims abstract description 9
- 239000003054 catalyst Substances 0.000 claims description 11
- 239000010453 quartz Substances 0.000 claims description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 9
- 239000007789 gas Substances 0.000 abstract description 28
- 239000003546 flue gas Substances 0.000 abstract description 9
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 238000007599 discharging Methods 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 abstract description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 4
- 239000002775 capsule Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- 159000000009 barium salts Chemical class 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000012495 reaction gas Substances 0.000 description 2
- 230000036632 reaction speed Effects 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 1
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- NIAGBSSWEZDNMT-UHFFFAOYSA-M tetraoxidosulfate(.1-) Chemical compound [O]S([O-])(=O)=O NIAGBSSWEZDNMT-UHFFFAOYSA-M 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/0042—SO2 or SO3
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
- G01N21/82—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a precipitate or turbidity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/02—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using precipitation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0006—Calibrating gas analysers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/007—Arrangements to check the analyser
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/007—Arrangements to check the analyser
- G01N33/0072—Arrangements to check the analyser by generating a test gas
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N2001/2893—Preparing calibration standards
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Abstract
SO (SO)3A calibration system of a standard substance generation and on-line analyzer relates to the technical field of flue gas monitoring, and comprises a gas tank, wherein the gas tank is connected with a reaction device through a pipeline, a flow meter is arranged on the pipeline, the gas tank is also connected with a sampling device through a pipeline, and a temperature control device is arranged outside the reaction deviceA, the reaction device is connected with a sampling device through a pipeline, a temperature control device B is arranged outside the sampling device, the sampling device is connected with an analyzer and a water bath cooling device, and the water bath cooling device is connected with a laboratory analysis device to solve the problem of SO at the current stage3The generation of standard substances and the calibration of an analyzer provide more accurate and reliable measurement data for industrial enterprises and environmental protection departments SO as to take corresponding measures and better control SO in flue gas3And (4) discharging.
Description
Technical Field
The utility model relates to a flue gas monitoring technology field, concretely relates to SO3A calibration system of a standard substance generation and on-line analyzer.
Background
In 12 months in 2015, the department of environmental protection, development and reform committee and the energy agency jointly release a work scheme for comprehensively implementing ultralow emission and energy-saving modification of coal-fired power plants, and SCR denitration devices and flue gas desulfurization devices are built in coal-fired power plants in various places. The denitration technology which is most widely applied at present is a selective catalytic reduction denitration technology, and the denitration catalyst can promote SO in flue gas while removing NOX2To SO3Increase SO in the conversion of3The emission concentration of (A) not only causes environmental pollution, SO3The active property is easy to combine with moisture in the flue gas to generate acidic substances, which corrode downstream equipment, and SO is treated in the current environmental protection standard3The emission index of (A) has no clear limitation. SO (SO)3In general, the gas analyzer is liquid, solid in standard condition, gas after heating, and has no change of form and relatively low concentration.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a SO3A calibration system for a standard substance generation and on-line analyzer is provided to solve the problems in the background art.
In order to achieve the above object, the utility model provides a following technical scheme: SO (SO)3The calibration system of the standard substance generation and on-line analyzer comprises a gas tank, wherein the gas tank is connected with a reaction device through a pipeline, a flow meter is arranged on the pipeline, the gas tank is further connected with a sampling device through a pipeline, a temperature control device A is arranged outside the reaction device, the reaction device is connected with the sampling device through a pipeline, a temperature control device B is arranged outside the sampling device, the sampling device is connected with the analyzer and a water bath cooling device, and the water bath cooling device is connected with a laboratory analysis device.
The number of the gas tanks is four, wherein N is filled in the two gas tanks2One of the gas tanks is connected with the sampling device through a pipeline, and the other two groups are respectively provided with SO2And O2A gas.
The reaction device comprises a tube furnace, a quartz tube and a catalyst, wherein one end of the tube furnace is connected with a gas tank through a pipeline, the other end of the tube furnace is connected with a sampling device through a pipeline, the quartz tube is arranged inside the tube furnace, the catalyst is arranged inside the quartz tube, and a temperature control device A is arranged outside the tube furnace.
The catalyst is V2O5。
The sampling device comprises a heating device and a constant-temperature sampling chamber, the constant-temperature sampling chamber is connected with the reaction device through a pipeline, and the heating device is arranged outside the constant-temperature sampling chamber.
The analyzer is a portable online sampling analyzer; the flowmeter is a rotor flowmeter.
Compared with the prior art, the beneficial effects of the utility model are that: by the system, SO is realized3The preparation device for the standard substance has the characteristics of simple structure, high reaction speed, uniform temperature of the cross section of the bed layer and the like; synchronizing SO by laboratory analysis results3The calibration of the analyzer has the advantages of reliable result, high accuracy and the likePoint, solving the existing stage SO3The generation of standard substances and the calibration of an analyzer provide more accurate and reliable measurement data for industrial enterprises and environmental protection departments SO as to take corresponding measures and better control SO in flue gas3And (4) discharging.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the reaction apparatus of the present invention;
fig. 3 is a schematic structural view of the sampling device of the utility model;
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to the drawings, the present invention provides a technical solution: SO (SO)3Standard substance takes place and online analyzer's calibration system, this system includes gas pitcher 1, and gas pitcher 1 passes through the pipe connection with reaction unit 3 and is equipped with flowmeter 2 on this pipeline, and gas pitcher 1 still passes through the pipe connection with sampling device 5, reaction unit 3 be equipped with temperature regulating device A4 outward, reaction unit 3 passes through the pipe connection with sampling device 5, sampling device 5 is equipped with temperature regulating device B9 outward, sampling device 5 is connected with analysis appearance 6 and water bath cooling device 8, water bath cooling device 8 be connected with laboratory analysis device 7.
The number of the gas tanks 1 is four, wherein N is filled in the two gas tanks 12One of the gas tanks 1 is connected with a sampling device 5 through a pipeline, and the other two groups are respectively provided with SO2And O2A gas.
The catalyst 303 is V2O5。
The sampling device 5 comprises a heating device 501 and a constant-temperature sampling chamber 502, the constant-temperature sampling chamber 502 is connected with the reaction device 3 through a pipeline, and the heating device 501 is arranged outside the constant-temperature sampling chamber 502.
The analyzer 6 is a portable online sampling analyzer; the flowmeter 2 is a rotor flowmeter.
Heating with a tube furnace 301, placing a quartz tube 302 as a fixed bed reactor, placing a catalyst 303 in a constant temperature region of the quartz tube 302, filling ceramic rings on the upper part of the bed layer to disperse airflow, arranging a temperature control device A4 in the tube furnace 301, and preparing reaction gas from high purity standard gas from a gas tank 1, wherein the reaction gas is derived from SO in the gas tank 12、O2、N2After passing through a pressure reducing valve, a pressure stabilizing valve and a rotor flow meter, all the gases enter a mixer according to a certain proportion and enter a reactor from the upper part of the reactor.
Connected by a pipeline, the outside of the pipeline is provided with a heat preservation, the online calibration system of the SO3 analyzer is provided with a constant temperature sampling chamber 502, and gas from the outlet of the reactor and N from the gas tank 12Into SO3A constant temperature sampling chamber 502, the constant temperature sampling chamber 502 is provided with a heating and temperature control device B9, the temperature is kept above 380 ℃ to ensure that SO3All in gaseous form. Two sampling ports are provided in the constant temperature sampling chamber 502: one path to a laboratory analysis device and one path to SO to be calibrated3The two sampling ports of the online concentration analyzer are arranged in parallel, so that the gases taken by the two sampling ports are completely the same in the same time period.
A water bath cooling device 8 is arranged at a sampling port of the laboratory analysis device 7 SO as to ensure SO in the flue gas3Can be totally condensed within the serpentine. And (4) washing the coiled pipe by using deionized water, collecting washing liquid to a constant volume device, and measuring sulfate ions. The sulfate radical ion is measured by a gravimetric method, namely, a constant volume solution is preparedAdding soluble barium salt, combining sulfate ion and barium salt to obtain barium sulfate precipitate, and analyzing the barium sulfate precipitate to obtain SO3The content of (a).
By the system, SO is realized3The preparation device for the standard substance has the characteristics of simple structure, high reaction speed, uniform temperature of the cross section of the bed layer and the like; synchronizing SO by laboratory analysis results3The calibration of the analyzer has the advantages of reliable result, high accuracy and the like, and solves the problem of SO at the present stage3The generation of standard substances and the calibration of an analyzer provide more accurate and reliable measurement data for industrial enterprises and environmental protection departments SO as to take corresponding measures and better control SO in flue gas3And (4) discharging.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. SO (SO)3The calibration system of the standard substance generation and on-line analyzer is characterized in that: the system comprises a gas tank, wherein the gas tank is connected with a reaction device through a pipeline and is provided with a flowmeter, the gas tank is further connected with a sampling device through a pipeline, the reaction device is externally provided with a temperature control device A, the reaction device is connected with the sampling device through a pipeline, the sampling device is externally provided with a temperature control device B, the sampling device is connected with an analyzer and a water bath cooling device, the water bath cooling device is connected with a laboratory analysis device, the reaction device comprises a tube furnace, a quartz tube and a catalyst, one end of the tube furnace is connected with the gas tank through a pipeline, the other end of the tube furnace is connected with the sampling device through a pipeline, the quartz tube is arranged inside the tube furnace, the catalyst is arranged inside the quartz tube, and the temperature control device A is arranged outside.
2. A SO according to claim 13The calibration system of the standard substance generation and on-line analyzer is characterized in that: the number of the gas tanks is four, wherein N is filled in the two gas tanks2One of the gas tanks is connected with the sampling device through a pipeline, and the other two groups are respectively provided with SO2And O2A gas.
3. A SO according to claim 13The calibration system of the standard substance generation and on-line analyzer is characterized in that: the catalyst is V2O5。
4. A SO according to claim 13The calibration system of the standard substance generation and on-line analyzer is characterized in that: the sampling device comprises a heating device and a constant-temperature sampling chamber, and the constant-temperature sampling chamber is connected with the reaction device through a pipelineAnd a heating device is arranged outside the constant-temperature sampling chamber.
5. A SO according to claim 13The calibration system of the standard substance generation and on-line analyzer is characterized in that: the analyzer is a portable online sampling analyzer; the flowmeter is a rotor flowmeter.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201922438717 | 2019-12-30 | ||
| CN2019224387175 | 2019-12-30 |
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| CN202010273907.0A Pending CN111272956A (en) | 2019-12-30 | 2020-04-09 | SO (SO)3Calibration system of standard substance generation and on-line analyzer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111272956A (en) * | 2019-12-30 | 2020-06-12 | 深圳睿境环保科技有限公司 | SO (SO)3Calibration system of standard substance generation and on-line analyzer |
| CN114460038A (en) * | 2021-12-31 | 2022-05-10 | 南京星空低碳科技中心(有限合伙) | Device and method for online monitoring of sulfur trioxide concentration |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113353894B (en) * | 2021-06-03 | 2022-07-01 | 清华大学 | Synchronous preparation and quantitative measurement SO3System and method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103472061B (en) * | 2013-08-27 | 2016-05-04 | 浙江大学 | The on-line measuring device of sulfur trioxide and method in a kind of flue gas |
| CN106596832A (en) * | 2016-06-02 | 2017-04-26 | 华纳创新（北京）科技有限公司 | SCR denitration catalyst evaluation device |
| CN207440028U (en) * | 2017-09-21 | 2018-06-01 | 中国石油天然气股份有限公司 | Denitration catalyst performance evaluation device |
| CN108088979A (en) * | 2018-01-12 | 2018-05-29 | 三峡大学 | A kind of experimental provision and its method of solid fuel denitration by refueling |
| CN108414516A (en) * | 2018-06-12 | 2018-08-17 | 大唐环境产业集团股份有限公司 | It is a kind of to measure device and method of power plant's denitrating catalyst to oxidation rate of sulfur dioxide |
| CN211825963U (en) * | 2019-12-30 | 2020-10-30 | 深圳睿境环保科技有限公司 | SO (SO)3Calibration system of standard substance generation and on-line analyzer |
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- 2020-04-09 CN CN202020509827.6U patent/CN211825963U/en active Active
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111272956A (en) * | 2019-12-30 | 2020-06-12 | 深圳睿境环保科技有限公司 | SO (SO)3Calibration system of standard substance generation and on-line analyzer |
| CN114460038A (en) * | 2021-12-31 | 2022-05-10 | 南京星空低碳科技中心(有限合伙) | Device and method for online monitoring of sulfur trioxide concentration |
| CN114460038B (en) * | 2021-12-31 | 2023-09-01 | 南京星空低碳科技中心(有限合伙) | Device and method for on-line monitoring concentration of sulfur trioxide |
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