CN206002495U - A kind of full-scale catalyst for denitrating flue gas operational characteristic experimental provision - Google Patents
A kind of full-scale catalyst for denitrating flue gas operational characteristic experimental provision Download PDFInfo
- Publication number
- CN206002495U CN206002495U CN201621049479.9U CN201621049479U CN206002495U CN 206002495 U CN206002495 U CN 206002495U CN 201621049479 U CN201621049479 U CN 201621049479U CN 206002495 U CN206002495 U CN 206002495U
- Authority
- CN
- China
- Prior art keywords
- gas
- detecting system
- nitrogen
- source
- experimental provision
- 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.)
- Active
Links
Landscapes
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The utility model discloses a kind of full-scale catalyst for denitrating flue gas operational characteristic experimental provision, including two sets of detecting systems and device for absorbing tail gas；Often set detecting system all includes smoke generating apptss, gas mixer, coiled gas preheater, static ammonia mixing arrangement, nitrogen ammonia mixing source of the gas, reaction unit；Smoke generating apptss enter static ammonia mixing arrangement through gas mixer, coiled gas preheater successively；Ammonia nitrogen mixing source of the gas is connected with static ammonia mixing arrangement；Static ammonia mixing arrangement is connected with reaction unit；Reaction unit is connected with device for absorbing tail gas respectively；Gas sample mouth is equipped with the exit and entrance of reaction unit；The outlet of the static ammonia mixing arrangement of two sets of detecting systems is connected by pipeline；The two ends of pipeline are connected with the reaction unit of two sets of detecting systems respectively；The reaction unit outlet of detecting system I is connected with the reaction unit entrance of detecting system II by valve.The utility model experimental provision testing efficiency is higher.
Description
Technical field
The utility model is related to a kind of experiment measurement dress for measuring assessment catalyst for denitrating flue gas process performance index
Put.
Background technology
Full-scale catalyst for denitrating flue gas operational characteristic experimental provision is a kind of for measuring assessment catalyst for denitrating flue gas
The experimental provision of process performance index.Which passes through the operating condition environment of simulated flue gas denitrating catalyst, measure analog cigarette
Gas by the change of component before and after complete single-stage or multiple catalysts cell cube, to assess denitration efficiency, the work of test sample
Property, the escaping of ammonia, sulfur dioxide（SO2）/ sulfur trioxide（SO3）The series of process performance indications such as conversion ratio.
In recent years China is increasingly strict for the Con trolling index of power plant emission nitrogen oxides, and Thermal Power Enterprises are de- to SCR flue gas
Nitre system, quality surveillance especially as the catalyst for denitrating flue gas of core component and the attention degree of management work are also increasingly
Strengthen.The power industry standard that issues for 2013《Coal steam-electric plant smoke denitrating catalyst inspection specifications》（DL/T 1286-
2013）The GB that will carry out with the end of the year 2015《Honeycomb type flue gas denitration catalyst》（GⅡ/T 31587-2015）In de- for flue gas
The measuring method, judgment criteria of denox catalyst operational characteristic index and corresponding full-scale catalyst for denitrating flue gas technique spy
The explanation that property experimental provision flow process all gives.But do not make the performance indications of detailed experimental provision structural parameters and device itself
Require.
As catalyst for denitrating flue gas simulation test operating mode is complicated and changeable, full-scale catalyst for denitrating flue gas operational characteristic reality
The quality of experiment device self performance and the adaptability on measurement condition can significantly affect the accuracy of experimental result.Domestic at present
In the full-scale catalyst for denitrating flue gas operational characteristic experimental provision that coherent detection mechanism possesses, reactor part mostly adopts
Horizontal arrangement form, easily causes the gravity in reactor when simulated flue gas flow through reactor due to gas temperature, density variation
Lamination, so as to reduce velocity field and concentration of component field distribution uniformity, and produces impact to the accuracy of testing result.Its
Secondary, most experiments device for specific components single channel experiment supply using single gas flowmeter carry out flow regulation and
Control, attainable gas flow stability contorting scope are typically more narrow, when each component in the required simulated flue gas of experiment
When change in concentration scope is larger, this kind of gas flow control mode is likely difficult to adapt to, thus limits the operating mode of experimental provision
The scope of application.3rd, the simply full-scale catalyst for denitrating flue gas operational characteristic experimental provision of form is typically difficult to while realizing
The test in parallel of multiple single-stage catalyst and multiple catalysts series connection measurement condition are switched fast, thus testing efficiency is relatively low.
Content of the invention
The purpose of this utility model is that it is higher to provide a kind of testing efficiency in order to solve defect present in prior art,
Experiment that multiple single-stage catalyst in parallel test and multiple catalysts series connection measurement condition is switched fast is realized simultaneously can
Device.
In order to achieve the above object, the utility model provides a kind of full-scale catalyst for denitrating flue gas operational characteristic experiment
Device, the experimental provision include two sets of detecting systems：Detecting system I and detecting system II, and device for absorbing tail gas；Detection system
System I and detecting system II all include smoke generating apptss, gas mixer, coiled gas preheater, static ammonia mixing dress
Put, ammonia nitrogen mixing source of the gas, reaction unit；Smoke generating apptss are entered through gas mixer, coiled gas preheater successively
Static ammonia mixing arrangement；Nitrogen ammonia mixing source of the gas is connected with static ammonia mixing arrangement；Static ammonia mixing arrangement is connected with reaction unit；
Detecting system I is connected with device for absorbing tail gas respectively with the reaction unit of detecting system II；Reaction unit includes that at least two-stage is anti-
Answer device；Gas sample mouth is equipped with exit and entrance per stage reactor；The static ammonia of detecting system I and detecting system II is mixed
Attach together the outlet that puts to be connected by pipeline；The two ends of pipeline reaction unit phase respectively with detecting system I and detecting system II
Even；Valve is equipped between static ammonia mixing arrangement and pipeline, between static ammonia mixing arrangement and reaction unit, on pipeline；Inspection
The outlet of the reaction unit of examining system I is connected with the entrance of the reaction unit of detecting system II by valve.
Wherein, reaction unit includes two-stage reactor, and two-stage reactor is connected, the entrance of front reaction device, two-stage reaction
Between device, rear end reactor exit be equipped with above-mentioned gas sample tap.
Smoke generating apptss include that nitric oxide source of the gas, sulfur dioxide source of the gas, air source of the gas, Nitrogen source gases, vapor are sent out
The different sulfur dioxide gas flow control of the different nitric oxide gas flow controller of generating apparatus, two ranges, two ranges
The different nitrogen gas flow controller of the different air gas flow controller of device processed, two ranges, two ranges；Vapor
Generating means is connected with gas mixer；Nitric oxide source of the gas two nitric oxide flow controllers, dioxies in parallel
Change sulphur source of the gas two sulfur dioxide gas flow controllers in parallel, air source of the gas two air gas streams in parallel
Amount controller, Nitrogen source gases two nitrogen gas flow controllers in parallel are connected with gas mixer respectively.
Detecting system also includes gas-to-gas heat exchanger；Reaction unit is connected with device for absorbing tail gas by gas-to-gas heat exchanger；
Nitrogen source gases are passed sequentially through two nitrogen gas flow controllers in parallel, gas-to-gas heat exchangers and are connected with gas mixer.
Detecting system also includes two ammonia nitrogen mixed gas flow controllers；Ammonia nitrogen mixing source of the gas two ammonia in parallel
Nitrogen mixture gas flow controller is connected with static ammonia mixing arrangement.
Reactor adopts vertical reactor.
Often the gas sample mouth of set detecting system is all connected with a set of online flue gas analyzer.
The utility model has advantages below compared to existing technology：
First, the utility model adopts two sets of detecting systems arranged side by side, is provided with two-stage in a series arrangement anti-in every group of system
Answer device.Switching of four reactors in two groups of detecting systems by pipe valve, can achieve the most level Four denitrating flue gas of single
The experiment test of catalyst sample；Two groups of experiment parallel tests of most two-stage catalyst for denitrating flue gas samples can also be realized.
Testing efficiency is improve while complex experiment operating mode is adapted to.
2nd, the reactor part of experimental provision adopts vertical form, effectively can optimize flow field in reactor and
Gas concentration Field distribution characteristic, it is ensured that it is equal that simulated flue gas met flow field and gas concentration field before test catalyst sample is entered
Even property is required.
3rd, the distribution part of experimental provision（That is smoke generating apptss part）, arranged side by side two pieces are adopted for single channel gas
Flow controller co- controlling.The range of two pieces of gas flowmeters is different, can be according to the change for simulating flue gas composition in experiment condition
Change is switched over, and using control mode alone or in combination, realizes the suitable of the flue gas composition change in concentration experiment condition to wide scope
Should be with accurately regulation and control.
4th, the utility model passes through gas-gas heat exchanger, can the waste heat of efficient utilization device tail gas carry out heated inlet flue gas,
Reduce plant running energy consumption.
5th, the utility model experimental provision can carry out the test of full-scale catalyst for denitrating flue gas operational characteristic, detection mode
Meet GB（GB/T 31587-2015）And power industry standard（DL/T 1286-2013）Require, compare typically small-sized detection
Device testing result is more representative.
Description of the drawings
Fig. 1 is the structured flowchart of the full-scale catalyst for denitrating flue gas operational characteristic experimental provision of the utility model.
In figure, I, II-detecting system, a- ammonia nitrogen mixing source of the gas, b- nitric oxide source of the gas, c- sulfur dioxide source of the gas, d- are empty
Gas source of the gas, e- Nitrogen source gases, f- industry softened water water source, 1-1,1-2,1-11,1-12- ammonia nitrogen gaseous mixture gas flow control
Device, 1-3,1-4,1-13,1-14- nitric oxide gas flow controller, 1-5,1-6,1-15,1-16- sulfur dioxide gas stream
Amount controller, 1-7,1-8,1-17,1-18- air gas flow controller, 1-9,1-10,1-19,1-20- nitrogen gas flow
Controller, 2-1,2-2- water vapor generation device, 3-1,3-2- gas mixer, 4-1,4-2- coiled gas preheater,
5-1,5-2- static ammonia mixing arrangement, 6-1,6-2,6-3,6-4- reactor, 7-1,7-2- gas-to-gas heat exchanger, 8- tail gas absorption
Device, A-1, A-2, A-3, B-1, B-2, B-3- gas sample mouth, the online flue gas analyzer of 9-1,9-2-.
Specific embodiment
Below in conjunction with the accompanying drawings the utility model is described in detail.
As shown in figure 1, the full-scale catalyst for denitrating flue gas operational characteristic of the vertical series/parallel of the level Four of the utility model offer
Experimental provision is made up of two groups of detecting systems I, II arranged side by side, and the design maximum exhaust gas volumn of every group of detecting system is 200Nm3/ h,
Highest design reaction temperature is 500 DEG C.Every group of detecting system respectively includes a series of air supply sources（Including Nitrogen source gases e, air source of the gas
D, nitric oxide source of the gas b, sulfur dioxide source of the gas c, ammonia nitrogen mixing source of the gas a）With watering（Industrial de-mineralized water source f）, wherein nitrogen
Source of the gas e and air source of the gas d are supplied with air compressor by nitrogen making machine respectively；Other gas source are supplied by steel cylinder gas.Each road
Gas distinguishes supporting gas flow controller, to adjust flow and the proportioning of gas with various.
Each road gas configuration two pieces of flow controllers arranged side by side（Different ranges）：In Group I detecting system, 1-1,1-2 are
Ammonia nitrogen mixed gas flow controller；1-3,1-4 are nitric oxide gas flow controller；1-5,1-6 are sulfur dioxide gas
Flow controller；1-7,1-8 are air gas flow controller；1-9,1-10 are nitrogen gas flow controller.Group II is examined
In examining system, 1-11,1-12 are ammonia nitrogen mixed gas flow controller；1-13,1-14 are nitric oxide gas flow controller；
1-15,1-16 are sulfur dioxide gas flow controller；1-17,1-18 are air gas flow controller；1-19,1-20 are nitrogen
Gas gas flow controller.
Watering is that two groups of industrial de-mineralized water source f are connected with corresponding water vapor generation device 2-1,2-2, produces controllable flow
The vapor of amount, respectively two groups detecting systems provide vapor, to meet the component requirements of simulated flue gas.
In every group of detecting system, nitrogen is first passed through in each self-corresponding gas-gas heat exchanger 7-1,7-2, by experiment tail gas one
Conflux with air, nitric oxide, sulfur dioxide, vapor after secondary heating again, and enter in gas mixer 3-1,3-2 fully
Mixing forms simulated flue gas, and being passed through in coiled gas preheater 4-1,4-2 afterwards carries out reheating, reaches flue-gas temperature
Experiment condition is required.Afterwards again by ammonia nitrogen gaseous mixture（Denitrification reducing agent）It is passed through in simulated flue gas, and flows through static ammonia mixing dress
Put in 5-1,5-2 and fully mix, subsequently pass sequentially through the first order and second stage reactor of corresponding group detecting system（Group I is examined
First and second stage reactor of examining system is 6-1,6-2；First and second stage reactor of Group II detecting system is 6-3,6-4）.
Catalyst for denitrating flue gas sample is placed in reactor, and the structure of two groups of detecting systems totally four reactors is identical, instead
Answer device inside dimension for 155mm × 155mm × 1400mm, a catalyst for denitrating flue gas unit can be accommodated per A reactor
Body.The simulated flue gas for being mixed into ammonia nitrogen gaseous mixture first pass through rectification at reactor inlet, after meeting certain Flow Field Distribution requirement,
Catalyst for denitrating flue gas sample is passed through, and SCR occurs（SCR）Denitration reaction.In every first order reaction
Gas sample mouth is equipped with the entrance and exit of device（The gas sample mouth of Group I detecting system from front to back be respectively A-1,
A-2、A-3；The gas sample mouth of Group II detecting system is respectively B-1, B -2, B -3 from front to back）.By gas sample mouth
Partial fume can be extracted be passed through in online flue gas analyzer, the content of wherein each flue gas composition be determined, is thus calculated cigarette
The series of process such as the denitration efficiency of qi exhaustion denox catalyst sample, activity, the escaping of ammonia, sulfur dioxide/sulphur trioxide conversion rate
Can index.Every group of detecting system corresponds to a set of online flue gas analyzer, respectively 9-1,9-2.
Reacted simulated flue gas pass through gas-gas heat exchanger 7-1,7-2, heat exchange occur with upstream nitrogen, while making itself
After flue-gas temperature reduces, enter back in device for absorbing tail gas 8.Harmful constituent in flue gas（Such as sulfur dioxide, nitrogen oxides etc.）
After being removed in device for absorbing tail gas, experiment tail gas is entered in ambient air through emptier again.Two groups of detecting systems are shared
A set of device for absorbing tail gas.
Two groups of detecting systems are connected with valve by threeway, pipeline after respective static ammonia mixing arrangement, are made each other
The devices such as the supply of front end, flow controller and coiled gas preheater can be standby each other.When single group detecting system occurs event
During barrier, valve transfer can be passed through, simulated flue gas are provided using another set of detecting system.
According to the requirement of experiment condition, the full-scale catalyst for denitrating flue gas operational characteristic of the vertical series/parallel of described level Four
Experimental provision can achieve the experimental evaluation to one to level Four catalyst for denitrating flue gas sample.When tested catalyst for denitrating flue gas sample
When grade number is less than two grades, the first order and the second stage reactor formation two-stage series connection flow process using single group detecting system is complete
Become test job, and the parallel test of two groups of detecting systems can be realized, do not interfere with each other to each other；When tested denitrating flue gas
When catalyst sample series is three-level or level Four, then the second level reactor exit in Group I detecting system is needed to enter line pipe
Road valve transfer, makes flue gas lead at the first order reactor inlet of Group II detecting system, thus by two groups of detecting systems
Level four reaction apparatus are collectively forming serial flow, to meet experiment condition requirement.
Claims (7)
1. a kind of full-scale catalyst for denitrating flue gas operational characteristic experimental provision, it is characterised in that：The experimental provision includes two
Set detecting system：Detecting system I and detecting system II, and device for absorbing tail gas；The detecting system I and detecting system II equal
Including smoke generating apptss, gas mixer, coiled gas preheater, static ammonia mixing arrangement, ammonia nitrogen mixing source of the gas, anti-
Answer device；The smoke generating apptss enter the static ammonia mixing through gas mixer, coiled gas preheater successively
Device；The nitrogen ammonia mixing source of the gas is connected with the static ammonia mixing arrangement；The static ammonia mixing arrangement is filled with the reaction
Put connected；The detecting system I is connected with the device for absorbing tail gas respectively with the reaction unit of detecting system II；The reaction
Device includes at least two-stage reactor；Gas sample mouth is equipped with exit and entrance per stage reactor；The detecting system I
Outlet with the static ammonia mixing arrangement of detecting system II is connected by pipeline；The two ends of the pipeline respectively with detecting system
I is connected with the reaction unit of detecting system II；Between the static ammonia mixing arrangement and pipeline, static ammonia mixing arrangement and reaction
Valve is equipped between device, on pipeline；The outlet of the reaction unit of the detecting system I is by valve and detecting system II
The entrance of reaction unit is connected.
2. experimental provision according to claim 1, it is characterised in that：The reaction unit includes two-stage reactor, two-stage
Reactor is connected, and the gas sample mouth is respectively arranged between the entrance of front reaction device, two-stage reactor, rear end reactor goes out
At mouthful.
3. experimental provision according to claim 1, it is characterised in that：The smoke generating apptss include nitric oxide gas
The different nitric oxide gas stream of source, sulfur dioxide source of the gas, air source of the gas, Nitrogen source gases, water vapor generation device, two ranges
The different air gas flows control of the different sulfur dioxide gas flow controller of amount controller, two ranges, two ranges
The different nitrogen gas flow controller of device, two ranges；The water vapor generation device is connected with the gas mixer；
The nitric oxide source of the gas two nitric oxide flow controllers in parallel, sulfur dioxide source of the gas in parallel two two
Sulfur oxide gas flow controller, air source of the gas two air gas flow controllers in parallel, Nitrogen source gases are by simultaneously
Two nitrogen gas flow controllers of connection are connected with gas mixer respectively.
4. experimental provision according to claim 3, it is characterised in that：The detecting system also includes gas-to-gas heat exchanger；Institute
State reaction unit to be connected with device for absorbing tail gas by gas-to-gas heat exchanger；The Nitrogen source gases pass sequentially through two nitrogen of parallel connection
Gas gas flow controller, the gas-to-gas heat exchanger are connected with the gas mixer.
5. experimental provision according to claim 1, it is characterised in that：The detecting system also includes that two ranges are different
Ammonia nitrogen mixed gas flow controller；The ammonia nitrogen mixing source of the gas two ammonia nitrogen mixed gas flow controllers in parallel with
The static ammonia mixing arrangement is connected.
6. experimental provision according to claim 1, it is characterised in that：The reactor adopts vertical reactor.
7. experimental provision according to claim 1, it is characterised in that：Often set detecting system gas sample mouth all with a set of
Online flue gas analyzer is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621049479.9U CN206002495U (en) | 2016-09-12 | 2016-09-12 | A kind of full-scale catalyst for denitrating flue gas operational characteristic experimental provision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621049479.9U CN206002495U (en) | 2016-09-12 | 2016-09-12 | A kind of full-scale catalyst for denitrating flue gas operational characteristic experimental provision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206002495U true CN206002495U (en) | 2017-03-08 |
Family
ID=58193022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621049479.9U Active CN206002495U (en) | 2016-09-12 | 2016-09-12 | A kind of full-scale catalyst for denitrating flue gas operational characteristic experimental provision |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206002495U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106248865A (en) * | 2016-09-12 | 2016-12-21 | 南京电力设备质量性能检验中心 | A kind of full-scale catalyst for denitrating flue gas operational characteristic experimental provision |
-
2016
- 2016-09-12 CN CN201621049479.9U patent/CN206002495U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106248865A (en) * | 2016-09-12 | 2016-12-21 | 南京电力设备质量性能检验中心 | A kind of full-scale catalyst for denitrating flue gas operational characteristic experimental provision |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106248865A (en) | A kind of full-scale catalyst for denitrating flue gas operational characteristic experimental provision | |
| CN103076151B (en) | Selective catalytic reduction (SCR) flue gas denitrification flow field cold state testing system and method | |
| CN201524524U (en) | Analog platform of flow field distribution structure of flue gas denitration device | |
| CN101281698A (en) | Simulation platform and test method for flow field arrangement structure of flue gas denitration apparatus | |
| CN101947413B (en) | Glass kiln denitration generating system | |
| CN103674103A (en) | Performance testing method for SCR (Selective Catalytic Reduction) flue gas denitration system | |
| CN204044136U (en) | A kind of experimental provision evaluated for SCR denitrating flue gas honeybee shape catalyst activity | |
| CN202860406U (en) | SCR flue gas denitrating device for glass kiln | |
| CN204359763U (en) | Shaping SCR catalyst activation evaluating system | |
| CN108195993A (en) | A kind of SCR denitration full-scale performance detection evaluating apparatus and its application process | |
| CN106404984B (en) | The isometric medium-sized catalyst for denitrating flue gas device for detecting performance of one kind and detection method | |
| CN111398512A (en) | Catalyst performance detection system and detection method based on-site flue gas denitration device | |
| CN204903485U (en) | Two reacting furnace activity detection devices of SCR denitration catalyst | |
| CN102072947B (en) | Testing method and testing device for properties of SCR (semiconductor control rectifier) smoke denitrating catalyst | |
| CN103885337A (en) | Low-nitrogen burning optimum NOx emission control method based on cost calculation | |
| CN203455325U (en) | Device for evaluating property of SCR (Selective Catalytic Reduction) denitrification catalyst | |
| CN206002495U (en) | A kind of full-scale catalyst for denitrating flue gas operational characteristic experimental provision | |
| CN208465627U (en) | A kind of SCR denitration system spray ammonia control device | |
| CN107402278B (en) | Performance pilot-scale device of SCR denitration catalyst | |
| CN205323556U (en) | Mixed voltage regulator device of many air supplies | |
| CN109932472A (en) | A kind of SCR denitration device for detecting performance and detection method | |
| CN206756764U (en) | A kind of performance characterization device of catalyst for denitrating flue gas | |
| CN208270515U (en) | A kind of device for the detection of SCR denitration full size bar operational characteristic | |
| CN203037440U (en) | SCR method flue gas denitration flow field cold state test system | |
| CN207689445U (en) | A kind of SCR denitration full-scale performance detection evaluating apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 210033 Qixia, Jiangsu Province, Wonderland Road, No. 10, Patentee after: Guodian Nanjing electric power test & Research Co., Ltd. Address before: 210033 Qixia, Jiangsu Province, Wonderland Road, No. 10, Patentee before: Nanjing Power Equipment Quality & Performance Test Center |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 210033 fairyland Road, Qixia District, Nanjing, Jiangsu Province, No. 10 Patentee after: Guoneng Nanjing Electric Power Test Research Co.,Ltd. Address before: 210033 fairyland Road, Qixia District, Nanjing, Jiangsu Province, No. 10 Patentee before: GUODIAN NANJING ELECTRIC POWER TEST RESEARCH Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |