CN102506592A - Portable regulator for automatically testing efficiency of heating furnace - Google Patents
Portable regulator for automatically testing efficiency of heating furnace Download PDFInfo
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- CN102506592A CN102506592A CN2011103642641A CN201110364264A CN102506592A CN 102506592 A CN102506592 A CN 102506592A CN 2011103642641 A CN2011103642641 A CN 2011103642641A CN 201110364264 A CN201110364264 A CN 201110364264A CN 102506592 A CN102506592 A CN 102506592A
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Abstract
The invention relates to a portable regulator for automatically testing efficiency of a heating furnace. The technical scheme of the portable regulator is as follows: the portable regulator mainly comprises a portable smoke detector, a heat effect controller and an adjusting execution mechanism, wherein the adjusting execution mechanism is used for receiving an adjusting instruction to control air quantity; the portable smoke detector is used for measuring data, such as smoke temperature, oxygen content, carbon monoxide and carbon dioxide in a flue, calculating combustion efficiency, and feeding the combustion efficiency back to the heat effect controller; and the heat effect controller is used for automatically adjusting an air door control valve and optimizing the combustion efficiency according to the parameters fed back by the portable smoke detector. The portable regulator has the beneficial effects that: the portable smoke detector has the capabilities of directly detecting concentrations of CO2, CO, and O2 in smoke ingredients, simultaneously detecting environment temperature and smoke temperature, adjusting the air quantity of the heating furnace according to the parameters and forming a complete closed loop measurement and control system so that the efficiency improvement potential of the heating furnace is large and at least 5% of improvement of the efficiency is realized.
Description
Technical field:
The present invention relates to a kind of heater control system, particularly a kind of portable heating efficiency of furnace is tested adjusting apparatus automatically.
Background technology:
Heating furnace is one of visual plant during oil, refinery worker produce.Large tracts of land gets into the development period of high water-cut stage and viscous crude in the oil field, and it is even more important that heating furnace seems.Its form can be divided into box, vertical and the cylindrical furnace three major types.For heating furnace, processing medium is heated and heats up or vaporize simultaneously, and the height of its temperature is the operation operating mode and the product quality of influence back one operation directly.When furnace is too high, material is decomposed in heating furnace, even cause coking and burn out boiler tube.The quiet run of heating furnace can prolong boiler tube service life.Therefore, the furnace outlet temperature must strictly be controlled.
Heating furnace is a kind of of legacy equipment, has heat transfer process equally.Heat is passed to processing medium through metal pipe-wall, so they meet the basic law of heat conduction and convection heat transfer' heat-transfer by convection equally.But heating furnace belongs to the firepower firing equipment; At first the burning by fuel produces the red-hot flame and the air-flow of high temperature; Mainly heat is passed to tube wall through radiant heat transfer; Pass to processing medium by tube wall then, processing medium accounts for 70% ~ 80% of total heat duties at the heat that radiation chamber obtains, and the heat that obtains at convection section accounts for 20% ~ 30% of thermic load.So the diabatic process more complicated of heating furnace, it is very difficult thinking to obtain theoretically plant characteristic.
The characteristics of objects of heating furnace generally obtains based on qualitative analysis and experiment test.From qualitative angle, can find out that its diabatic process is: boiler tube is given in the red-hot Fire Radiation of burner hearth, gives processing medium through heat conduction, convection heat transfer' heat-transfer by convection.So the same with general heat transfer object, have bigger time constant and pure lag time.Burner hearth particularly, it has bigger thermal capacity, so it is more remarkable to lag behind, so heating furnace belongs to a kind of controlled device of multicapacity.According to some experiment tests, and done some simplification, can add pure hysteresis with Jie's link and be similar to, its time Changshu is relevant with the burner hearth amount of capacity and the processing medium time of staying with pure lag time.The burner hearth capacity is big, and the time of staying is long, then time constant and pure lag time big, vice versa.
There not being big fund to upgrade under the situation of heating furnace, how to improve heating furnace regulation technology and development, the operational efficiency that improves heating furnace is very crucial, has great significance to keeping the safety in production, saving energy and reduce the cost and enhance productivity.
In addition, be example with certain oil field, the oil recovery factory regulates the mode of heating furnace burning, mainly is to adopt the blower fan power frequency operation, and air door has only third gear, generally is fixed on middle-grade operation, and it is artificial through observing manually opened valve to come oil mass to adopt, and belongs to extensive style and regulates.Such regulative mode exists the air fuel proportioning unreasonable, regulates untimely, inaccurate situation manually, causes efficient lower.
Most of thermal efficiency of heating furnace is 60%～80%, and evenly heat efficient is lower than the standard-required of petroleum industry standard 75% less than 74%, and majority belongs to Low Performance Equipment not up to standard, even the part heater efficiency is less than 60%.Excess air coefficient is on average more than 2.0, and far above petroleum industry standard 1.1～1.6, indivedual stoves have reached more than 9, and combustion position is very bad.And exhaust gas temperature is on average more than 280 ℃, 220 ℃ of the standards of formulating far above the oil field.The flue gas loss that brings thus causes huge energy dissipation more than 20%.
Summary of the invention:
Problems such as the object of the invention is exactly the above-mentioned defective that exists to prior art, provides a kind of portable heating efficiency of furnace to test adjusting apparatus automatically, and it is lower to solve existing manual adjustments efficient, and air residue index is bigger; For instructing the heating furnace operation that foundation is provided, can bring huge economic benefit, also significantly reduce environmental pollution simultaneously.
Its technical scheme is: mainly be made up of portable flue gas detector, heat effect controller, adjusting executing agency, adjusting executing agency is used for receiving regulating command air quantity is controlled; Described portable flue gas detector can portablely move, and is used for measuring the data of flue-gas temperature in the flue, oxygen content, carbon monoxide, carbon dioxide, and calculates efficiency of combustion, feeds back to heat and imitates controller; Described heat is imitated the parameter of controller according to portable flue gas detector feedback, adjusts the air door control valve automatically, optimized combustion efficient; Heat is imitated controller and is fixed on the heating furnace scene with adjusting executing agency, and portable flue gas detector and heat are imitated between the controller and connected through communication bus.
Above-mentioned portable flue gas detector mainly is made up of optical pickocff, infrared light supply and modulation thereof, plated film air chamber, Infrared Detectors, sensor TT&C system, and described infrared light supply and modulation thereof, plated film air chamber, Infrared Detectors are arranged on the same optical axis; Infrared light supply is supplied power by current stabilization; Supply voltage is different and different according to the light source that uses with electric current; Optical pickocff sends periodic infrared light according to predefined modulating frequency, and the infrared light that infrared light supply sends incides the plated film air chamber through window material, and the plated film air chamber is fed tested gas continuously by the sampling air pump and measures air chamber; The infrared light of GAS ABSORPTION specific wavelength, the infrared light of permeametry air chamber is surveyed by Infrared Detectors; Because the signal of telecommunication of the effect infrared sensor output AC of modulated infrared light; High-accuracy amplification rectification circuit is once being passed through in pre-amplification circuit amplification back through thereafter; Obtain a direct current signal corresponding with tested gas concentration and send into the TT&C system processing, have temperature sensor to survey its operating ambient temperature in the infrared sensor, the infrared sensor signal is through TT&C system; And after software processes such as digital filtering, linear interpolation and temperature-compensating, provide the gas concentration measurement value.
Above-mentioned heat is imitated the data acquisition process that controller is accomplished portable flue gas detector, with the signal input control module of gathering, accomplishes the control of valve opening through the pid algorithm module.
Before the signal input control module of gathering, need be provided with low pass filter and carry out hardware filtering, earlier signal carried out the one-level coarse filtration, remove and disturb and sampling noiset; Then, adopt the moving average software filtering to carry out that secondary is smart to be filtered, reduce the actual value of signal to be detected at the software section of analyzer.
Above-mentioned heat is imitated controller and is selected to use PC/104 series mainboard and capture card as the basis, and designs corresponding Filtering Processing plate and shell encapsulates, embedded system and special-purpose software.
The invention has the beneficial effects as follows: portable flue gas detector can directly detect CO in the smoke components
2, CO, O
2Concentration, simultaneously testing environment temperature, flue-gas temperature, and calculate excess oxygen coefficient in real time according to these parameters; And the fuel of heating furnace (oil, gas) amount, intake are regulated according to above parameter; Form a complete closed loop measurement and control system; Make the improved efficiency space of heating furnace bigger, realize 5% raising at least, can bring huge economic benefit; Also significantly reduce environmental pollution simultaneously, heating furnace is carried out integrated energy saving technology research have great and realistic economic and social effect.
Description of drawings:
Accompanying drawing 1 is control principle figure of the present invention;
Accompanying drawing 2 is internal hardware circuit theory diagrams of the present invention;
Accompanying drawing 3 is in house software structure charts of the present invention;
The specific embodiment:
In conjunction with accompanying drawing 1-3, the present invention is done further description:
The present invention mainly is made up of portable flue gas detector, heat effect controller, adjusting executing agency, and adjusting executing agency is used for receiving regulating command air quantity is controlled; Described portable flue gas detector can portablely move, and is used for measuring the data of flue-gas temperature in the flue, oxygen content, carbon monoxide, carbon dioxide, and calculates efficiency of combustion, feeds back to heat and imitates controller; Described heat is imitated the parameter of controller according to portable flue gas detector feedback, adjusts the air door control valve automatically, optimized combustion efficient; Heat is imitated controller and is fixed on the heating furnace scene with adjusting executing agency, and portable flue gas detector and heat are imitated between the controller and connected through communication bus.
Wherein, portable flue gas analyzer critical component is following:
Optical pickocff:When the opticator of sensor designs, disturb for the decay and the outer signals that reduce the infrared sensor small-signal, pre-amplification circuit also is placed on the optics in the lump, and has taked the certain electromagnetic shielding measure.In order to make gas INFRARED ABSORPTION signal have The better resolution, when carrying out structural design, infrared light supply, air chamber, Infrared Detectors should be arranged on the same optical axis.In order to make signal enough big, can use ellipse or parabolic type speculum in addition.Infrared light supply is supplied power by current stabilization, and supply voltage is different and different according to the light source that uses with electric current.During work; Sensor sends periodic infrared light according to predefined modulating frequency; The infrared light that infrared light supply sends incides the measurement air chamber through window material; Measure air chamber and continuously tested gas is fed the measurement air chamber by the sampling air pump, the infrared light of GAS ABSORPTION specific wavelength, the infrared light of permeametry air chamber is surveyed by Infrared Detectors.Because the signal of telecommunication of the effect infrared sensor output AC of modulated infrared light is once passing through high-accuracy amplification rectification circuit through pre-amplification circuit amplification back thereafter, obtains a direct current signal corresponding with tested gas concentration and sends into the TT&C system processing.There is temperature sensor to survey its operating ambient temperature in the infrared sensor.Infrared sensor signal process TT&C system, and after software processes such as digital filtering, linear interpolation and temperature-compensating, provide the gas concentration measurement value.
This flue gas analyzer module adopts NDIR infrared survey principle, according to CO in the gas componant
2, CO, O
2, CH
4, C
3H
8Have absorption spectrum with NO etc. in the IR wavelength zone by the molecule of xenogenesis atomic building, its absorption intensity is followed youth's primary-Beer law.When the light wave of a certain gas characteristic absorbing wavelength of correspondence passed through tested gas, its intensity obviously weakened, and strength retrogression's degree is relevant with this gas concentration, and both sides relation is followed youth primary-Bill
(Lambert-Beer)Law.
Infrared light supply and modulation thereof:PUISIR; Novel electrical modulation infrared light supply such as REFLECTIR etc.; Warming and cooling rate is very fast. on the infrared light supply launch window transparency window is installed; The infrared light wavelength that on the one hand can guarantee to launch is suitable for gases such as the gas of routine such as CO2, CO, CH4, NO, SO2 are measured in particular range.Also can stop the influence of external environment in addition to light-source temperature.
The plated film air chamber:Adopt air chamber and the outer separated structures that supports, the center that only needs during installation air chamber to be fixedly mounted on supporting construction gets final product.This kind structural design has guaranteed that these parts are easy to Zhuan Xie ﹑ and change; Owing to separate, further reduced the influence of external condition simultaneously, made instrument can adapt to work under the complex environment with outer support.Former in addition serve need longer air chamber sensor, adopt very difficulty of previous methods processing and film plating technology, adopting will be very easily after this method, cost also will reduce greatly.The tradition air chamber has adopted and outer support integrated design, has system and makes advantages such as Rong Yi ﹑ is easy for installation, but receive the ambient temperature influence of fluctuations bigger; Secondly, owing to, have certain corrosivity,, use rear gas chamber very easily contaminated for a long time, directly influence certainty of measurement like SO2 ﹑ NOx etc. by the analytical gas complicated component.
Infrared Detectors:Infrared Detectors, the core component of NDIR gas sensor, certainty of measurement largely depends on the performance height of sensor.The high sensitivity infrared sensor is adopted in this research, TPS2534Gx/Gy for example, and TPS4339Gw/Gx/Gy/Gz is installed with the spike interference filter to gas with various in its encapsulation, can realize the measurement to gas with various.Obtain stronger stabilization signal in order to ensure Infrared Detectors; Can design a kind of Infrared Detectors orientation axes; Even there is certain deviation the Infrared Detectors position of on preamplification board, welding, this sensor also can be guaranteed to be positioned on the same optical centre axle with infrared light supply and air chamber.
The signal that Infrared Detectors reception infrared light produces is very faint, very easily receives extraneous interference, and therefore reliable and stable pre-amplification circuit is a key, preferably adopts the analog amplify circuit of high-accuracy, low drift, and adopts the narrow-band filtering circuit.Pre-amplification circuit has the precision height, the characteristics little, that response is fast of drifting about.The signal that preposition amplification is come out is directly exported one and gas concentration respective signal, and is sent into TT&C system through second amplifying circuit, through obtaining gas concentration after gamma correction and the compensation.
The sensor TT&C system:Functions such as measurement, control and automatic demarcation in order to realize the NDIR gas sensor need a suitable microcontroller come management of sensor.The sensor TT&C system adopts the gamma correction algorithm can directly obtain the concentration of measurement gas through gathering infrared output signal and measurement standard gas curve.
Mechanics of communication and agreement design:Feed back to the control centre unit in order to survey measured data, flue gas analyzer need provide communication interface.The communication of on-the-spot long distance for ease, flue gas analyzer provides RS485 standard communication interface, and communication distance is 1200 meters.The ModBus RTU communications protocol of employing standard can stable data be sent to the control centre unit.
In addition, heat of the present invention is imitated the controller general introduction:
The control centre unit is the core brain of this instrument, the good operation of control whole instrument.The data acquisition process of flue gas analysis module is accomplished in the control centre unit, with the signal input control module of gathering, accomplishes the control of valve opening through the pid algorithm module.
The display interface design
Instrument selection industry touch LCD display is as the instrument display interface, and interface display is directly perceived, and is simple to operate, easy to use.
The filter band design
Because of there are various interfering signals in on-site signal, mainly comprise periodic interference signals (like the interference of frequency conversion equipment generation), interfering signal aperiodic (other module electric equipments), steady interfering signal, non-stationary interfering signal, common mode disturbances etc.Be exactly like this signal that collects be a clutter that comprises various interference, if such signal sends analysis software to, the signal that will cause collecting is incorrect.
Therefore, inner at portable adjusting apparatus, the secondary filtering mode that adopts hardware filtering and software filtering to combine.At portable adjusting apparatus analog input card front end, according to the characteristic and the frequency requirement of collection in worksite signal, the design low pass filter carries out hardware filtering, earlier signal is carried out the one-level coarse filtration, removes and disturbs and sampling noiset; Then, adopt the moving average software filtering to carry out that secondary is smart to be filtered, reduce the actual value of signal to be detected at the software section of analyzer.
The design of analog quantity filter band
The analog quantity filter band will be accomplished two parts function: signal conversion, signal filtering.
Control centre's hardware designs
Based on above performance requirement, it is longer that oneself develops the portable adjusting apparatus cycle fully, and performance etc. can't guarantee that all simultaneously, portable adjusting apparatus has certain particularity, buys finished product and also be unfavorable for later exploitation and improvement.Therefore system selects to use the module of existing standard on the industrial market to carry out the secondary development encapsulation, and the system and the software that embed oneself are to satisfy the demand of system.
In native system, system select to use PC/104 series mainboard and capture card as the basis, and designs corresponding Filtering Processing plate and shell encapsulates, embedded system and special-purpose software, the special portable adjusting apparatus of formation and system support.
PC/104 is the mechanical electric standard of built-in PC.Its formulation; The system platform of standard is provided for Embedded Application; It has acted on the open bus-structured advantage of IBM-PC; For the engineer who designs application system provides standard, highly reliable, powerful, the convenient system component that uses, thereby manpower is freed from the loaded down with trivial details design based on chip.
PC/104 has two bus plugs, and wherein P1 has 64 pins, and P2 has 40 pins, has 104 pins, and this also is the origin of PC104 title.First PC104 module resulted from 1987, but the normalized illustration of stricti jurise just announced just had 125 producers to introduce the PC104 standard at that time and produce the PC104 clone in 1992.As original PC bus, PC104 is carrying out with non-statutory standards, rather than committee's design construction.IEEE took up to be PC and IEEEP996 standard of simplifying of PC/AT bus formulation in 1992.It is thus clear that PC104 is a kind of industrial-controlled general line that defines for Embedded Application specially.Corresponding with PC .P C/AT bus, PC10 4 has also defined two kinds of module releases: 8 and 16.For compatible, formulated PC104 Plus standard again with pci bus. can connect the high speed external device.
Rule according to the selection product: versatility, extensibility, compatibility, later maintenance etc.; Same producer product is used in the general selection of mainboard and capture card as far as possible; Because the product of different manufacturers many times is not test each other, might cause unnecessary troubles such as Products Compatibility.
In native system, having adopted the series of products of containing Boke's skill, was a military enterprise originally, did industrial product at present.
The mainboard type selecting
Mainboard is selected SCM/SPTD 7062 modules of x86 structure for use, and SCM/SPTd (PC/104 module) is a " all-in-one " CPU module, it plate integrated 10/100Base-T Ethernet interface and high performance graphics processor.Adopt X86 compatible 64 the 6th generation processor, highest running speed can reach 300MHz, supports maximum 128M 3.3V SDRAM at board memory.Maximum 4M video memory maximum supports to 1280*1024,16.7M kind color, supports PS/2 keyboard, PS/2 mouse, IDE interface, Floppy interface, two to go here and there interface, USB, Ethernet interface and Watchdog in the lump at plate simultaneously.Chipset Cx5530A is a PCI-to-ISA bridge (south bridge), and the chipset that ACPI is compatible provides AT/ISA function.The SCM/SPTd module provides a perfect power management function, makes system reach deep layer " green energy conservation ".Integrated bus master EIDE controller is supported the equipment that two ATA are compatible.The USB interface provides at a high speed, user's peripheral hardware of plug and play connects (like digital camera).
Claims (5)
1. a portable heating efficiency of furnace is tested adjusting apparatus automatically, it is characterized in that: mainly be made up of portable flue gas detector, heat effect controller, adjusting executing agency, adjusting executing agency is used for receiving regulating command air quantity is controlled; Described portable flue gas detector can portablely move, and is used for measuring the data of flue-gas temperature in the flue, oxygen content, carbon monoxide, carbon dioxide, and calculates efficiency of combustion, feeds back to heat and imitates controller; Described heat is imitated the parameter of controller according to portable flue gas detector feedback, adjusts the air door control valve automatically, optimized combustion efficient; Heat is imitated controller and is fixed on the heating furnace scene with adjusting executing agency, and portable flue gas detector and heat are imitated between the controller and connected through communication bus.
2. the portable heating efficiency of furnace according to claim 1 is tested adjusting apparatus automatically; It is characterized in that: described portable flue gas detector mainly is made up of optical pickocff, infrared light supply and modulation thereof, plated film air chamber, Infrared Detectors, sensor TT&C system, and described infrared light supply and modulation thereof, plated film air chamber, Infrared Detectors are arranged on the same optical axis; Infrared light supply is supplied power by current stabilization; Supply voltage is different and different according to the light source that uses with electric current; Optical pickocff sends periodic infrared light according to predefined modulating frequency; The infrared light that infrared light supply sends incides the plated film air chamber by window material; The plated film air chamber is fed tested gas continuously by the sampling air pump and measures air chamber; The infrared light of GAS ABSORPTION specific wavelength, the infrared light of permeametry air chamber is surveyed by Infrared Detectors; Because the signal of telecommunication of the effect infrared sensor output AC of modulated infrared light; High-accuracy amplification rectification circuit is once being passed through in pre-amplification circuit amplification back by thereafter; Obtain a direct current signal corresponding and send into the TT&C system processing with tested gas concentration; There is temperature sensor to survey its operating ambient temperature in the infrared sensor; The infrared sensor signal is through TT&C system; And after software processes such as digital filtering, linear interpolation and temperature-compensating, provide the gas concentration measurement value.
3. the portable heating efficiency of furnace according to claim 1 is tested adjusting apparatus automatically; It is characterized in that: described heat is imitated the data acquisition process that controller is accomplished portable flue gas detector; With the signal input control module of gathering, accomplish the control of valve opening through the pid algorithm module.
4. the portable heating efficiency of furnace according to claim 3 is tested adjusting apparatus automatically; It is characterized in that: before the signal input control module of collection; Need be provided with low pass filter and carry out hardware filtering, earlier signal carried out the one-level coarse filtration, remove and disturb and sampling noiset; Then, adopt the moving average software filtering to carry out that secondary is smart to be filtered, reduce the actual value of signal to be detected at the software section of analyzer.
5. test adjusting apparatus automatically based on the claim 1 or the 3 described portable heating efficiencies of furnace; It is characterized in that: described heat effect controller selects to use PC/104 series mainboard and capture card as the basis; And design corresponding Filtering Processing plate and shell encapsulates, embedded system and special-purpose software.
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Cited By (10)
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|---|---|---|---|---|
| CN103234340A (en) * | 2013-04-19 | 2013-08-07 | 湖南中烟工业有限责任公司 | Control method and device of tobacco pneumatic drying air-heating furnace |
| CN103512378A (en) * | 2013-10-17 | 2014-01-15 | 广西铁合金有限责任公司 | Smoke amount measuring and control device and smoke amount measuring and control method of semi-closed ferroalloy submerged arc furnace |
| CN103528387A (en) * | 2013-10-17 | 2014-01-22 | 广西铁合金有限责任公司 | Flue-gas temperature measuring and control device and flue-gas temperature measuring and control method for semi-closed ferroalloy submerged arc furnace |
| CN104266196A (en) * | 2014-09-19 | 2015-01-07 | 王惠生 | Biomass fuel pre-heating technique for garbage incineration treatment |
| CN104791838A (en) * | 2015-03-19 | 2015-07-22 | 中国石油化工股份有限公司 | Oxygen-enriched combustion evaluation method |
| CN105066187A (en) * | 2015-07-17 | 2015-11-18 | 广东美的厨房电器制造有限公司 | Method and device for controlling opening degree of gas stove ventilation door |
| CN105675524A (en) * | 2016-01-14 | 2016-06-15 | 广东伟创科技开发有限公司 | Flue gas analyzing system and method |
| CN108121203A (en) * | 2017-11-15 | 2018-06-05 | 中国石油化工股份有限公司 | A kind of heating furnace tune ginseng method for optimization analysis and system |
| CN108266397A (en) * | 2016-12-30 | 2018-07-10 | 北京凯德中天科技发展有限公司 | Power plant's air-introduced machine two close cycles dynamic optimization energy-saving control method |
| CN113777046A (en) * | 2021-08-06 | 2021-12-10 | 中国环境科学研究院 | Method for measuring and calculating emission of carbon dioxide generated by incineration treatment of waste |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103234340A (en) * | 2013-04-19 | 2013-08-07 | 湖南中烟工业有限责任公司 | Control method and device of tobacco pneumatic drying air-heating furnace |
| CN103512378A (en) * | 2013-10-17 | 2014-01-15 | 广西铁合金有限责任公司 | Smoke amount measuring and control device and smoke amount measuring and control method of semi-closed ferroalloy submerged arc furnace |
| CN103528387A (en) * | 2013-10-17 | 2014-01-22 | 广西铁合金有限责任公司 | Flue-gas temperature measuring and control device and flue-gas temperature measuring and control method for semi-closed ferroalloy submerged arc furnace |
| CN103528387B (en) * | 2013-10-17 | 2015-03-25 | 广西铁合金有限责任公司 | Flue-gas temperature measuring and control method for semi-closed ferroalloy submerged arc furnace |
| CN104266196A (en) * | 2014-09-19 | 2015-01-07 | 王惠生 | Biomass fuel pre-heating technique for garbage incineration treatment |
| CN104791838A (en) * | 2015-03-19 | 2015-07-22 | 中国石油化工股份有限公司 | Oxygen-enriched combustion evaluation method |
| CN105066187A (en) * | 2015-07-17 | 2015-11-18 | 广东美的厨房电器制造有限公司 | Method and device for controlling opening degree of gas stove ventilation door |
| CN105675524A (en) * | 2016-01-14 | 2016-06-15 | 广东伟创科技开发有限公司 | Flue gas analyzing system and method |
| CN108266397A (en) * | 2016-12-30 | 2018-07-10 | 北京凯德中天科技发展有限公司 | Power plant's air-introduced machine two close cycles dynamic optimization energy-saving control method |
| CN108266397B (en) * | 2016-12-30 | 2019-11-26 | 北京凯德恒源科技发展有限公司 | Power plant's air-introduced machine two close cycles dynamic optimization energy-saving control method |
| CN108121203A (en) * | 2017-11-15 | 2018-06-05 | 中国石油化工股份有限公司 | A kind of heating furnace tune ginseng method for optimization analysis and system |
| CN108121203B (en) * | 2017-11-15 | 2020-08-18 | 中国石油化工股份有限公司 | Heating furnace parameter adjustment optimization analysis method and system |
| CN113777046A (en) * | 2021-08-06 | 2021-12-10 | 中国环境科学研究院 | Method for measuring and calculating emission of carbon dioxide generated by incineration treatment of waste |
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Application publication date: 20120620 |