CN205897562U - Practical device to detection of industry buggy conduction oil boiler denitration warm area - Google Patents
Practical device to detection of industry buggy conduction oil boiler denitration warm area Download PDFInfo
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- CN205897562U CN205897562U CN201620535016.7U CN201620535016U CN205897562U CN 205897562 U CN205897562 U CN 205897562U CN 201620535016 U CN201620535016 U CN 201620535016U CN 205897562 U CN205897562 U CN 205897562U
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- boiler
- warm area
- monitoring system
- temperature
- denitration
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- 238000001514 detection method Methods 0.000 title claims abstract description 9
- 238000012544 monitoring process Methods 0.000 claims abstract description 9
- 238000002485 combustion reaction Methods 0.000 claims description 22
- 239000000843 powder Substances 0.000 claims description 13
- 239000003245 coal Substances 0.000 claims description 11
- 238000012546 transfer Methods 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims 1
- 239000007921 spray Substances 0.000 abstract description 5
- 238000009529 body temperature measurement Methods 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
- 238000000691 measurement method Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 239000002817 coal dust Substances 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 241001269238 Data Species 0.000 description 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical class [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 230000011218 segmentation Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000004611 spectroscopical analysis Methods 0.000 description 2
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000001307 laser spectroscopy Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000001931 thermography Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
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Abstract
The utility model discloses a practical device to detection of industry buggy conduction oil boiler denitration warm area, adopt contact measurement methods of measurement, be equipped with the temperature monitoring system, temperature measurement station and the chamber negative pressure signal of temperature monitoring system through reading 3 layers boiler radiant sections and arranging, and read and the analysis boiler operation load and relevant operating data, combine temperature field modeling data, calculate furnace temperature range's roughly distribution, and real time output warm area data, guide the denitration to spray the adjustment.
Description
Technical field
This utility model belongs to denitration technology field and in particular to a kind of Industrial Boiler flue-gas purification equipment.
Background technology
With the increasingly stringent of environmental requirement, new standard is also brought up to the discharged nitrous oxides of industrial coal powder boiler,
According to the requirement of up-to-date boiler Air Pollutant Emission, pulverized-coal fired boiler discharged nitrous oxides will reach 200mg/nm, and traditional
Sncr denitration in the stove due to being changed by boiler load and to be affected its denitration efficiency relatively low always for furnace temperature zone, about 40% about it is impossible to
Meet environmental requirement.For improve denitration efficiency, many enterprises be devoted to by find burner hearth be best suitable for warm area instruct denitration spray
Penetrate region to improve denitration efficiency.Affected by burner hearth high temperature, mainly adopt non-contact temperature to survey fire box temperature detection at present
Amount, including sound velocity method, audio method, radiation spectroscopy (radiant intensity method, image method, infrared emission ct method) and laser spectrometry
(interferometric method, scattering spectrometry) etc..But because such device price is high, maintenance cost is high, and Industrial Boiler enterprise is often difficult to hold
Be subject to, and by the industrial coal powder boiler type of furnace, structure, load variations, fuel type, combustion system, wind powder proportioning, run and the shadow such as operate
Ring, such detection means there is a problem of precision not high, response not in time, versatility not strong, enterprise has spent huge cost but
Do not obtain due energy-conservation and environmental benefit.
Utility model content
The purpose of this utility model is to overcome defect present in prior art, provides one kind to be directed to industrial coal powder heat conduction
The utility unit of thermo oil boiler denitration warm area detection, this apparatus structure is simple, can export warm area data in real time, instructs denitration to spray
Adjustment.
For achieving the above object, design of the present utility model is as follows:
A kind of utility unit for the detection of industrial coal powder heat conducting oil boiler denitration warm area, including input module, temperature prison
Examining system (plc), exchanger, boiler dcs, thermocouple and combustion chamber draft sensor.
Input module is connected with plc, initial data is sent to plc and is modeled analyzing, these initial datas include: pot
Stove chamber structure size, boiler thermodynamic calculation data, coal dust physical property, combustion characteristic and burner data, design burner hearth is born
Pressure and flue gas flow rate, coal dust steady-state burning temperature field primitive modeling data, weather geographical conditions data and other data.
Some field instruments are distributed with burner hearth, specifically by three layers of arrangement cigarette temperature measuring point and combustion chamber draft measuring point,
Every layer about wall set a thermocouple, every layer sets a combustion chamber draft sensor；After boiler normal operation, these live instrument
Table is by measuring point signal teletransmission to exchanger, then is communicated with plc by the exchanger being connected with plc, by the temperature of collection in worksite
Information and combustion chamber draft signal send plc to.
Boiler dcs is connected with exchanger, is communicated with plc also by exchanger, and the data of collection is sent to plc,
These data include exhaust gas temperature, forced-and-induced draft fan frequency, oil circulating pump frequency, conduction oil flow, import and export oil temperature etc..
When boiler normally runs, plc calculates theoretical warm area distribution by reading boiler dcs data；Then, by three
The temperature point of layer arrangement and combustion chamber draft signal, carry out three layers of segmentation to calculated theory warm area, calculate and revise, defeated
Go out relatively accurate temperature range distribution；System makes a look up in the default denitration warm area being inputted according to input module, and output is de-
Nitre is best suitable for the distributing position of warm area, to instruct denitration spray gun adjustment eject position.
The theoretical foundation of this set system is:
1st, burning coal powder Industrial Boiler stably burns its inherent character and more ripe distribution of three-dimensional temperature data.
2nd, fire box temperature field presents and deviates the lower rule of the more remote temperature of ignition center, and follows radiant heat transfer rule.
3rd, under the burning condition determining (i.e. coal powder performance, wind powder proportioning, powder feeding air quantity and blast), warm area distribution is main
Affected by negative pressure larger, therefore pass through 3 points of negative pressure of burner hearth and elevation data can calculate the length of flame and drift condition, thus
Adjustment Temperature calculating.
4th, boiler original thermodynamic computing data is that modeling provides basic reference frame.
5th, denitration is best suitable for warm area for 850-950 DEG C, and its fluctuation range reaches 100 DEG C, for the temperature field after three sections of cuttings
And after system is processed, its temperature deviation amplitude is much smaller than 100 DEG C, is accurate therefore to the positioning of denitration warm area.
Advantage of the present utility model and having the beneficial effects that:
1st, can in real time displays temperature field distribution, and warm area be best suitable for denitration make a look up；
2nd, by carrying out communication analytical calculation with boiler dcs, different load, the temperature prison under combustion conditions are adapted to
Survey；
3rd, system configuration is simple, economical and practical；
4th, system is modularization making, can meet the temperature field prison of the industrial coal powder boiler difference type of furnace, different combustion system
Survey, versatility is stronger；
5th, system has done a large amount of basic data acquisitions and test to burner flame combustion position, by comparing thermal imaging skill
Physicopsychic training techniques evidence, defines a set of more science, accurately burn calculating simulation；
6th, this device is simulated for warm area, rather than temperature spot simulation, optimizes measuring point quantity, to signal hysteresis and dynamic and thermal stability
Require more loose, anti-interference strengthens；
7th, can ensure that boiler operatiopn safety, improve boiler combustion efficiency, extension device service life, diagnosis and prevention
Burner hearth coking, reduction environmental pollution.
Brief description
Fig. 1 is schematic diagram of the present utility model.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is further described.Hereinafter implement
Example is only used for clearly the technical solution of the utility model being described, and can not limit protection model of the present utility model with this
Enclose.
The technical scheme that this utility model is embodied as is:
As shown in figure 1, a kind of utility unit for the detection of industrial coal powder heat conducting oil boiler denitration warm area, including input mould
Block, temperature monitoring system (plc), exchanger, boiler dcs, thermocouple and combustion chamber draft sensor；Wherein, input module will be former
Beginning data is sent to plc and is modeled analyzing, and these initial datas include: boiler furnace physical dimension, boiler thermodynamic calculation number
According to, coal dust physical property, combustion characteristic and burner data, design combustion chamber draft and flue gas flow rate, coal dust steady-state burning temperature
Field primitive modeling data, weather geographical conditions data and other data；In burner hearth, by three layers of arrangement thermocouple (t1-t6)
With combustion chamber draft sensor (p1-p3), every layer is provided with two thermocouples and a combustion chamber draft sensor, and thermocouple is left and right wall
Each one；After boiler normal operation, these field instruments are communicated with temperature monitoring system by switch, and scene is adopted
The temperature information of collection and combustion chamber draft signal send plc to；Meanwhile, boiler dcs is led to plc also by exchanger
News, the data of collection are sent to plc, these data include exhaust gas temperature, forced-and-induced draft fan frequency, oil circulating pump frequency, heat conduction
Oily flow, import and export oil temperature etc..
When boiler normally runs, plc calculates theoretical warm area distribution by reading boiler dcs data；Then, by three
The temperature point of layer arrangement and combustion chamber draft signal, carry out three layers of segmentation to calculated theory warm area, calculate and revise, defeated
Go out relatively accurate temperature range distribution；System makes a look up in the default denitration warm area being inputted according to input module, and output is de-
Nitre is best suitable for the distributing position of warm area, to instruct denitration spray gun adjustment eject position.
The above is only preferred implementation of the present utility model it is noted that common skill for the art
For art personnel, on the premise of without departing from this utility model know-why, some improvements and modifications can also be made, these change
Enter and retouch also to should be regarded as protection domain of the present utility model.
Claims (1)
1. a kind of utility unit for the detection of industrial coal powder heat conducting oil boiler denitration warm area, including input module, temperature monitoring
System, exchanger, boiler dcs, thermocouple and combustion chamber draft sensor；Described input module and described temperature monitoring system
It is connected, for inputting initial data；Described boiler dcs is connected with described exchanger, described exchanger and described temperature
Degree monitoring system is connected, by the data transfer of described boiler dcs collection to described temperature monitoring system；Described thermocouple
Three layers are divided to be distributed in burner hearth with described combustion chamber draft sensor, wherein, every layer of thermocouple being distributed with described in two and
Individual described combustion chamber draft sensor, and described thermocouple every layer be distributed as each one of left and right wall；Described thermocouple
With described combustion chamber draft sensor by the field data collecting remote transmission to described exchanger, then by described exchange
Device is sent to described temperature monitoring system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620535016.7U CN205897562U (en) | 2016-06-06 | 2016-06-06 | Practical device to detection of industry buggy conduction oil boiler denitration warm area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620535016.7U CN205897562U (en) | 2016-06-06 | 2016-06-06 | Practical device to detection of industry buggy conduction oil boiler denitration warm area |
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| Publication Number | Publication Date |
|---|---|
| CN205897562U true CN205897562U (en) | 2017-01-18 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620535016.7U Expired - Fee Related CN205897562U (en) | 2016-06-06 | 2016-06-06 | Practical device to detection of industry buggy conduction oil boiler denitration warm area |
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| CN (1) | CN205897562U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107376608A (en) * | 2017-09-12 | 2017-11-24 | 北京国能中电节能环保技术股份有限公司 | A kind of SNCR spray nozzle devices for π type Process In A Tangential Firings |
-
2016
- 2016-06-06 CN CN201620535016.7U patent/CN205897562U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107376608A (en) * | 2017-09-12 | 2017-11-24 | 北京国能中电节能环保技术股份有限公司 | A kind of SNCR spray nozzle devices for π type Process In A Tangential Firings |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170510 Address after: 401 Changshu high tech Industrial Development Zone, Suzhou, Southeast Road, room 333, room, No. 215500 Patentee after: CHANGSHU KAIHONG ENERGY SAVING AND ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Address before: 401 Changshu high tech Industrial Development Zone, Suzhou, Southeast Road, room 333, room, No. 215500 Patentee before: JIANGSU CAHOM NEW ENERGY MANAGEMENT Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 401, room 333, 215500 southeast Avenue, Changshu hi tech Industrial Development Zone, Suzhou, Jiangsu, China Patentee after: Jiangsu kaihong energy conservation and Environmental Protection Technology Co.,Ltd. Address before: 401, room 333, 215500 southeast Avenue, Changshu hi tech Industrial Development Zone, Suzhou, Jiangsu, China Patentee before: CHANGSHU KAIHONG ENERGY SAVING AND ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170118 |