CN102869923A - Method and device for controlling atmospheric boiler with air tight combustion chamber - Google Patents
Method and device for controlling atmospheric boiler with air tight combustion chamber Download PDFInfo
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- CN102869923A CN102869923A CN2010800657085A CN201080065708A CN102869923A CN 102869923 A CN102869923 A CN 102869923A CN 2010800657085 A CN2010800657085 A CN 2010800657085A CN 201080065708 A CN201080065708 A CN 201080065708A CN 102869923 A CN102869923 A CN 102869923A
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 36
- 230000006870 function Effects 0.000 claims abstract description 9
- 239000000523 sample Substances 0.000 claims abstract description 5
- 239000000567 combustion gas Substances 0.000 claims description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 239000007789 gas Substances 0.000 claims description 17
- 238000001514 detection method Methods 0.000 claims description 8
- 238000012986 modification Methods 0.000 claims description 5
- 230000004048 modification Effects 0.000 claims description 5
- 238000010079 rubber tapping Methods 0.000 claims description 5
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- 238000007599 discharging Methods 0.000 claims description 2
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- 230000003247 decreasing effect Effects 0.000 claims 1
- 239000000446 fuel Substances 0.000 claims 1
- 239000002737 fuel gas Substances 0.000 claims 1
- 230000002045 lasting effect Effects 0.000 claims 1
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- 238000012360 testing method Methods 0.000 description 30
- 238000013461 design Methods 0.000 description 5
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- 238000005259 measurement Methods 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/60—Devices for simultaneous control of gas and combustion air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
- F23N1/02—Regulating fuel supply conjointly with air supply
- F23N1/022—Regulating fuel supply conjointly with air supply using electronic means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
- F23N1/08—Regulating fuel supply conjointly with another medium, e.g. boiler water
- F23N1/082—Regulating fuel supply conjointly with another medium, e.g. boiler water using electronic means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/003—Systems for controlling combustion using detectors sensitive to combustion gas properties
- F23N5/006—Systems for controlling combustion using detectors sensitive to combustion gas properties the detector being sensitive to oxygen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
- F23N5/12—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using ionisation-sensitive elements, i.e. flame rods
- F23N5/123—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using ionisation-sensitive elements, i.e. flame rods using electronic means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
- F23N1/02—Regulating fuel supply conjointly with air supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N1/00—Regulating fuel supply
- F23N1/08—Regulating fuel supply conjointly with another medium, e.g. boiler water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2225/00—Measuring
- F23N2225/08—Measuring temperature
- F23N2225/19—Measuring temperature outlet temperature water heat-exchanger
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2225/00—Measuring
- F23N2225/26—Measuring humidity
- F23N2225/30—Measuring humidity measuring lambda
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N2229/00—Flame sensors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23N—REGULATING OR CONTROLLING COMBUSTION
- F23N5/00—Systems for controlling combustion
- F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
- F23N5/12—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using ionisation-sensitive elements, i.e. flame rods
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Regulation And Control Of Combustion (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
A control method of a boiler provided with atmospheric burner comprises a valve for controlling the gas sent to a burner (14), means (10) for detecting the flame present in the latter and control means (13) of functional components of the boiler such as the gas valve (15), a fan, provided with its own electric motor, a circulator o pump, a temperature probe, said control means (13) co-operating with a memory (12) wherein a plurality of optimum operating conditions of the boiler is tabulated functions of features related to the flame, to the thermal power and to the value lambda. The working point of the boiler is determined on one of such curves, the ratio between combustion air and gas is modified starting from a current operating value, in order to shift such working point along such curve, it is verified if such variation of the ratio arrives at a predefined value and in that case a previous air-gas ratio of correct operation is reset, in the opposite case the gas flow rate being modified in order to obtain an optimum combustion ratio. Protection is also claimed for a device for accomplishing such method.
Description
Technical field
The objective of the invention is the method that is used for controlling the boiler that is provided with atmospheric burner according to the preamble of exclusive rights.Another object of the present invention is for the device of realizing said method.
Background technology
Known, the burner of common the above-mentioned type comprise for control give the valve of the combustion gas deliver to burner, for detection of the control device of the functional part of the device of the flame of burner, burner, for example, this functional part is as being present in actuator in the burner, fan (usually being used in the airtight combustion chamber boiler), circulator, three-way diverter valve, temp probe etc. by its oneself electrical motor driven.
Usually there is " low side " boiler on the market, can predict, by the parts of mechanical type, as be placed on the pressure switch of combustion air entrance side or toxic emission side, guarantee that necessity of combustion air provides (and best and pollution-free burning therefore).Except high cost, it also relates to the restriction of the possibility etc. of the burning outside the normal parameter, as in the situation of main gaseous-pressure (still can not produce the burning of polluting and may be harmful to the mankind even in rule, do not provide) excessive variation or in the main combustion gas quality situation about changing, perhaps in the situation of the failure and special that has tapping equipment or manufacturing or design or other tolerances.
In addition, also because intervention or carelessness for the calibration of valve itself that the attendant carries out, the pressure that leaves the combustion gas of presenting valve may experience variation; Therefore, as mentioned above, the operating parameter of determining in design phase of boiler is between the operating period at boiler and As time goes on may not be as guaranteeing correct burning (pollution-free).
At last, in order to prevent boiler in the situation that lack of water operation and occurring subsequently damage heat-exchanging part or even damage the danger of boiler itself or damage surrounding environment, check in heating system and/or the main hydraulic circuit whether also have water by mechanical part (separately contact), this mechanical part that cost is increased may break down in this case and therefore lose their appointed " safety " function.
Also known, in the boiler of the above-mentioned type, between flare up fire level (more properly, detect take kilo-ohm its impedance or the curtage value proportional to flare up fire as unit) and quantity combusted, there is correlation, that is, and CO, CO
2Level with similar combustion gas, above-mentioned correlation is by many curve limits corresponding with various abilities to work, according to these abilities to work, can limit the relation between flame and the burning quality, and can identify with for the required combustion air/combustion gas of the proper operation of boiler than the scope of corresponding value (namely, in such parameter area internal combustion, not pollute).
Summary of the invention
The method and apparatus that the purpose of this invention is to provide a kind of boiler for controlling the above-mentioned type is so that it is at free of contamination burning horizontal operation.
Particularly, the objective of the invention is to save for the mechanical part of the ventilation unit of control boiler and the spatter property guaranteeing even under above-mentioned unusual condition of work, burn.
Another object of the present invention is can obtain the adaptivity of the control of the length of tapping equipment and type and/or increase efficient, is not having to consider the combustion cleaning degree in the auxiliary situation of other sensor simultaneously.
Another purpose of the present invention is, for so that the control optimization of above-mentioned boiler, saves for the existence of the hydraulic pressure of control system and control water and circulates to guarantee the mechanical part of safety operation with dynamical fashion.
For those skilled in the art clearly these and other purpose by realizing according to the method and apparatus of the claim that makes up.
Description of drawings
In order to understand better the present invention, provided the following drawings, these accompanying drawings are only as example and non-limiting providing, wherein:
Fig. 1 shows the exemplary graph of the possible working curve of the boiler corresponding with various abilities to work, and these curves are functions of burning (being limited by λ (Lambda) value) and flame impedance;
Fig. 2 shows the flow chart of the method according to this invention;
Fig. 3 A, 3B and 3C show curve map, this curve was shown in the motor deexcitation time afterwards, the time dependent function of detection voltage on the motor of the fan of boiler, wherein, airtight combustion chamber is respectively from the condition before high, low and rotary speed sky;
Fig. 4 shows the block diagram according to device of the present invention.
The specific embodiment
With reference to described accompanying drawing, describe the ventilation unit of boiler and the control of burning therefore about Fig. 1,2 and 4.Known for a long time, in boiler, usually by means of the electronic circuit that is immersed in the electrode in the flame and is used for encouraging it and measures the restriction of flame level, control the signal from flame itself, with " quality " of check burning, thereby whether check it in the situation that do not produce pollutant and in the limit of regulation, carry out.
By the flare up fire of monitoring as feedback, can control correct combustion process.Yet flare up fire itself can not easily be used for this purpose, because it is subject to using the impact of tolerance, burner, combustion power; In addition, even for identical application model (for example, identical boiler), that is to say, with reference to Fig. 1, the variation of parameter (herein, also because manufacturing tolerance, Setup Type etc.) still so that the simple setting of absolute operant level be not enough to be thought of as, for example " not burning ", when right value is calculated as A by absolute value, the flame detection level value of equaling B '.Its evidence is following situation: the flame as the burning feedback does not correctly use in boiler or atmospheric burner.For this reason, arrange in advance correct combustion testing, this test will occur carrying out under the particular job condition with predetermined timing or boiler.This test is based on the flame combustion correlation, in any case it obtains by parts 10, the burner 14 of boiler (comprise common electrical and/or electronic component, and be preferably microprocessor, thereby limit programmable control system by memory) operation store at the suitable memory 12 of the device 13 that is used for control, and valve 15 is intervened, with to burner 14 feeding combustible gas.
Known, this correlation limits such as lower curve: for the given operating point of boiler, will the burn value of signal of this curve links to λ (burning quality index) variation (lambda) according to the example of Fig. 1.
When being defined in the common working curve of definite concrete application (or boiler) of its Design and implementation stage, between the operating period of boiler, in the predetermined time interval or when detecting particular job condition (as described below), advance to occur the tram of above-mentioned operating point along correlation curve by making operating point itself.With reference to above-mentioned particular job condition, in the situation of stable workload, detect the variation relevant with flare up fire, it can be regarded as for the reason that activates test, and this for example changes (with reference to Fig. 1) from starting point A to different some B '.This variation itself is expression but is not the variation that must be enough to be used in judging burning condition, and do not affect entity.Another exceptional condition that may need to activate combustion testing is to detect the level of Oscillation Amplitude of flare up fire (usually presenting) far above normally.
Come mobile working point on given curve by reducing to the amount of the combustion air of delivering to burner; This be for example by the deexcitation fan or reduce fan speed (for example, by to the working of the general control system that is used for induction motor 230VAC, as, by phase deviation, act on the motor of fan) realize.
The constant flow rate that all these will keep combustion gas to leave valve 15 and be drawn towards burner 14 simultaneously.
Alternately, be drawn towards the amount (for example, by increasing the outlet pressure of combustion gas) of the combustion gas of burner 14 by modification, can obtain similar result, by suitable control valve 15 being worked keep the constant of air supply.
By this way, the curve that is placed thereon along with the operating point of operating point and move (left side in the curve map).The result can be (also with reference to Fig. 2):
A) start work point be correct (for example, around A) (namely, on the correct working curve of the boiler under the control that consequently has best combustion with air like this and gas flow rate), and, in this case, flare up fire (considering that its resistance value is expressed) predetermined value that will descend is until minimum point and then the rising of its inter_curve (X).If impedance contrast rf
A-rf
CU RRENT(wherein, rf
CURRENTAt time t at test period
CURRENTThe impedance of the instantaneous flame that the place measures, rf
AThe average flame value that before combustion testing begins, detects) reach at least one predetermined value (can before the X that touches the bottom, reach this value), think that then test is positive, restart fan, and use and continue its normal operating.
B) if by changing the zone (B or B ') that recently operating point is moved to inefficient combustion from (A) of combustion air and combustion gas, then flare up fire will be reduced to less than predetermined value.This causes the negative test of combustion testing.This result causes the corrective action that reduces the aspect of the discharge gas flow rate of valve, and purpose is to make to use the work that is back in correct burning point (C), and wherein, the execution of combustion testing subsequently will have positive result.
Preferably (unrestricted condition) limits the maximum magnitude that the pressure correctness is left in combustion gas, after this discharging, has the another combustion testing of negative test because inefficient combustion produces safety shutdown.According to this method, can (unrestricted condition) attempt starting boiler, and, if this condition is repeated " n " inferior trial, closing module (can by manually resetting this state of recovery) subsequently then.
If judged the inapplicable condition of inefficient combustion, then according to identical method and after having positive result's combustion testing, leave pressure and can be back to more or less gradually median or even be back to initial value.
Therefore, one of advantage of system is: (usually may be in installation to the obstruction of air duct in appearance, such as the ice on the ventilation duct) greater than in the situation that in the legacy system, simply by the amount work to reduce, then it can be in the situation that clean burning be worked (thereby guarantee user comfortableness).
The test that realizes is configured to: passing through-not testing by type according to logic given among following Fig. 2 that provides.
In the figure, it relates to the test that realizes by reducing the air supply, 20 limit the beginning according to the process of said method, the initial measurement of 21 expression flame values, 22 are suitable for by the deexcitation fan or reduce the effect that its speed (perhaps alternately, the variation of flow velocity or combustion gas are to the variation of the pressure of burner) is revised combustion air and the ratio of combustion gas.In piece 23, measure instantaneous flame value, then, the check impedance contrast greater than or less than setting value (piece 24).If answer is sure, then again increase fan speed, perhaps reactivate fan, if suitable, then increase combustion gas to the flow velocity (piece 25) of burner, if perhaps it then keeps it constant corresponding to the maximum of usually being scheduled to that limits maximum capacity.If answer negates, then in piece 26, again estimate impedance contrast, and, if this estimation has negative test, then in piece 27, reduce gas flow rate.
In piece 28, estimate the value that reaches of gas flow rate reduction, if it is less than the predetermined maximum that reduces, then stop these processes at piece 30, perhaps close burner (piece 29).
As another advantage, because aforesaid operations pattern, be different from the presently used solution that needs use the add ons except basic " machinery " configuration, add ons is used for making the dissimilar of combustion adaptive environment, the gas exhaust device of length, perhaps be used for to recover (increases) no matter when efficient of the application of environment permission, (be used for the test of correct burning) according to the present invention, fan speed can adapt to length and the cross section of tapping equipment, perhaps, thus in the situation that possiblely reduce the efficiency of combustion that fan speed increases boiler.Its control together with fan speed (following realizing of will describing, for example, by being used for the phase deviation of 230VAC fan) makes it possible to enough points of judging approx correct burning.
This function is current in the system of usefulness to be come to satisfy in the following manner:
-manual type is by adding dividing plate (the restriction air is by the passage of the tapping equipment that constantly shortens), perhaps
-automated manner, by insertion air-flow or pressure sensor in boiler, and based on the signal adaptation fan speed relevant with the air-flow that detects.
According to the present invention, process is as follows:
-begin to carry out above-mentioned test from the operating rate (being lower than maximum) that reduces
-with the operating rate of test result for affirmation or change fan; Particularly:
If-test detects correct burning and in preset range, confirm that then current fan speed is used for given ability to work (in this case, system is with correct air velocity work);
If-test detects inefficient combustion (CO
2Be lower than predetermined value), then reduce maximum operating speed, and use maximum operating speed as the benchmark that is used for the subsequent combustion test; And, subsequently,
If-test detects incorrect burning, then can proceed according to one of following possibility:
If-work at present speed is lower than maximum, then increase operating rate; Perhaps
If work at present speed has been maximum operating speed, then carry out subsequently according to above-mentioned some b) process (about the analysis of Fig. 1), lower gas flow rate, if suitable, then after attempting, " n " inferior adjustment closes boiler, purpose is to obtain correct burning, does not reach the desired value of correct burning.
This option can use together with above-mentioned one, perhaps may not need must be used to control the operation of boiler.
For from initially just detecting exceptional condition, by the measurement of electric current or " exchange " function of motor itself, can make above-mentioned combustion testing and ventilating part and therefore be associated with the above-mentioned testing circuit of the actual activation of fan (even be not must).For this reason, can predict circuit and be suitable for detecting AC signal and the control algolithm that when closing, is produced by motor, precognition:
The activation of-fan
-it closes (after the scheduled time), and
-in the alternating voltage of decelerating phase generation or the measurement of electric current.
The algorithm of research and development makes it possible to obtain the information relevant with following situation: whether fan works (rotation), and whether it is connected to network, and the qualitative indication of rotary speed.
With reference to Fig. 3 A, B and C, they illustrate the behavior of the detection of the motor of normally used fan on the gas fired-boiler.During at the trial, the power-off of fan (formerly having begun after the order time of 0.5-10s).Described accompanying drawing shows the process of the voltage on the fan that produces by the effect that changes its motor after fan cuts out.Rotating condition before the amount of the voltage that produces, size and frequency (by control device 13 detect and type and models that depend on fan) the expression fan itself.
If detect not rotation (Fig. 3 C), (for example then carry out safety measure, standby mode if use---burner cuts out, begun or begun or can't begin with the ability that reduces if use, then safety shutdown or restart).
In order to obtain the fully control to boiler, and reduce simultaneously its cost, be contained in the heat exchanger and the equipment of the pressure (hydraulic) water that is heated by burner operation in, the precognition following methods.
-predict following circuit test:
-burner 14 is activated and operates scheduled time Tn with reservation capability Qn.Ability and time limit and depend on material and the water content thereof of weight, heat exchanger itself in the design phase.The size of time and ability must be defined as so that in the situation that shortage water and/or circulation can not cause any damage to heat exchanger at least.
In addition, their size must be defined as making it possible to produce the predetermined rising of the temperature of the water that is contained in heat exchanger inside, is used for after a while the actual appearance that (as described below) judges water and active cycle.
During this period, calculate the calorie (integration by the burner ability obtains) that is stored in the burner, and the monitoring outlet temperature.
If increase at mutual conductance (in the judgement of the definition phase of the parameter relevant with the function of discussing, and depend on the type of heat exchanger, temperature probe etc.) and more than or equal to certain value Dtl, be expressed as a ° K/s, situation under do not detect temperature and rise, then close burner 14 lack water in the heat exchanger because estimate, therefore, temperature is sent to probe at once, in order to consist of the heat conduction of the metal of heat exchanger, and since its inside have water and can not weaken.
Under reverse situation, store average outlet temperature.Then, activate circulator or pump (not shown).If circulator work, and have water in the heat exchanger, then should detect the transient temperature of judging according to the heat that is stored in the heat exchanger and rise, this temperature rises and depends on weight, its material and water content thereof.If the result of test is positive (Dt is in the design phase limited range), then boiler can be proceeded the operation of the burner (normal operating) opened.In the situation that opposite, close burner, and if suitably, then carry out one or more experimental stage.
The regime type test that obtains provides the information that exists about water/active cycle, and makes it possible to save normally used absolute pressure switch or circular flow meter in the boiler.
The specific embodiment of the present invention has been described.Yet other embodiment also is feasible and is in the scope of the claim that makes up.
Claims (16)
1. the control method of a boiler, described boiler has airtight combustion chamber and is provided with atmospheric burner, described atmospheric burner comprises for the valve of control to the combustion gas of delivering to burner (14), device (10) for detection of the flame that exists in the described burner (14), and the control device of the functional part of described boiler (13), described functional part for example is gas valve (15), be provided with the fan of its oneself electro-motor, circulator or pump, temperature probe, described control device (13) cooperates with memory (12), wherein, a plurality of conditions of work of described boiler tabulated for described flame, the function of the feature that thermal technology's rate of doing work of described boiler is relevant with burning quality index or λ, it is characterized in that, under operating condition, judge the operating point of described boiler at one of such curve, begin to revise ratio between combustion air and the combustion gas from current or practical operation value, with along the such operating point of such curve movement, check such variation of described ratio whether to reach predetermined value, and, in the situation that reach predetermined value, burning at place, above-mentioned operating point is considered to correct, before operation air fuel gas ratio is reset, in the situation that opposite, revise gas flow rate, to reach pollution-free burning operating point.
2. method according to claim 1, it is characterized in that, alternately, in the predetermined time section or when detecting the particular job condition of variation such as flare up fire etc., carry out described method with given ability, compare with the detection of the vibration of a reference value or such signal, described given ability is fully greater than normal level.
3. method according to claim 1, it is characterized in that, the amount that is fed to the combustion air of described burner (14) by minimizing is revised the ratio between described combustion air and the combustion gas, and such minimizing obtains by intervening fan and rotary speed thereof.
4. method according to claim 1 is characterized in that, carries out the modification to the ratio between described combustion air and the combustion gas when the gas-flow that remains to described burner is constant.
5. method according to claim 1 is characterized in that, in the situation that air velocity is constant, is drawn towards to the amount of the combustion gas of described burner (14) by modification and carries out described modification to the ratio between described combustion air and the combustion gas.
6. method according to claim 1 is characterized in that, described predetermined value is one of minimum in the described working curve.
7. method according to claim 1, it is characterized in that, if after the variation of ratio at pre-determined number between described combustion air and the combustion gas, do not reach the correct burning of predetermined value, then estimate poor between current flame impedance and the best initial flame impedance about described operating point, according to such difference and with the comparison of predetermined value, think and need to revise ratio between described combustion air and the combustion gas, and need to proceed estimation to such difference, until realized correct burning or until described boiler activate and be prevented from or close.
8. method according to claim 1, it is characterized in that, from the condition that wherein gas quantity has reduced to obtain correctly to burn, if caused the reason of above-mentioned condition inapplicable, then increase gas flow rate until it reaches the correct burning of predetermined value, perhaps if possible return initial value.
9. method according to claim 1, it is characterized in that, if the variation of the ratio between the judgement of described operating point and described combustion air and the combustion gas demonstrates the inefficient combustion of boiler, then be decreased to the gas flow rate of described burner (14), to reset correct burning.
10. method according to claim 9, it is characterized in that, if the value that reduces not reset correct burning of described gas flow rate is then predicted new trial when the startup of described boiler and safety shutdown or in the situation that is manually reset the piece of request and close.
11. method according to claim 1, it is characterized in that, precognition is to the control of described fan, described being controlled at obtaining during the check of the described operating point of described boiler and the subsequently modification to the ratio between described combustion air and the combustion gas, keep or reduce respectively the rotary speed of described fan according to the judgement of correct burning or discharging is lower than the non-best combustion of predetermined value according to CO2 judgement, to obtain the adaptation of tapping equipment or the recovery of efficient.
12. method according to claim 11, it is characterized in that, in detecting the situation of non-best combustion, revise the rotary speed of described fan by the rotary speed that increases described fan, perhaps, alternately, if described rotary speed is the highest, then be reduced to the described gas flow rate of described burner, described reduction is carried out by continuous several times ground, and, if after the variation of maximum number of times, obtain the fuel value of expectation, then close described boiler.
13. method according to claim 1 is characterized in that, by after the deexcitation of the power supply of described fan, measures the correct function that alternating current that the electro-motor by described fan produces is estimated described fan.
14. method that is used for the control boiler, described boiler has airtight combustion chamber, described airtight combustion chamber is provided with atmospheric burner, described atmospheric burner comprises for the valve of control to the combustion gas of delivering to burner (14), device (10) for detection of the flame that exists in described combustion chamber (14), and the control device of the functional unit of described boiler (13), described functional unit for example is heat exchanger, the pump or the analog that are used for water, the pressure (hydraulic) water that has heated flows into the described heat exchanger from described burner (14), it is characterized in that precognition:
-activate described burner (14) and the lasting scheduled time with reservation capability,
-calculate in the situation that the calorie that described pump stops to store in the described burner within such scheduled time,
-after the reactivation of described pump, monitor the real-time change of the temperature of described heat exchanger, to check whether there is water in the described heat exchanger.
15. method according to claim 14, it is characterized in that, if in the situation that described pump stops, the value that caloric memory phase in described burner (14) is stored and within the time after the reactivating of described pump the difference of the outlet temperature of the water of the described heat exchanger between the detected value in preset range, then detect and have water in the described heat exchanger and have effective water circulation.
16. device that is used for realizing method according to claim 1, described method is carried out in boiler, described boiler has airtight combustion chamber and comprises device (10) for detection of the flame in the burner (14), control device (13) such as functional parts such as gas valve or fans, it is characterized in that, described device comprises the storage device (12) of many working curves that comprise described boiler, position according to the present operating point that detects at one of such device, combustion air/combustion gas is than being modified with along the such operating point of such curve movement, until obtain with best combustion with air/gas than corresponding best operational position.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/IT2010/000126 WO2011117896A1 (en) | 2010-03-24 | 2010-03-24 | Method and device for controlling an atmospheric boiler with an air tight combustion chamber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102869923A true CN102869923A (en) | 2013-01-09 |
| CN102869923B CN102869923B (en) | 2016-01-27 |
Family
ID=43385650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201080065708.5A Active CN102869923B (en) | 2010-03-24 | 2010-03-24 | For controlling method and the device of the normal-pressure boiler with airtight combustion chamber |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP2550483B1 (en) |
| CN (1) | CN102869923B (en) |
| EA (1) | EA024861B1 (en) |
| ES (1) | ES2667045T3 (en) |
| PL (1) | PL2550483T3 (en) |
| WO (1) | WO2011117896A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112424586A (en) * | 2018-06-15 | 2021-02-26 | 塞莫费雪科学（不来梅）有限公司 | Flame module for spectrometer |
| TWI804316B (en) * | 2022-05-17 | 2023-06-01 | 陳勝雄 | Smart boiler structure that can monitor temperature and combustion ratio |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITMI20120427A1 (en) * | 2012-03-19 | 2013-09-20 | Bertelli & Partners Srl | PERFECTED METHOD FOR THE ELECTRONIC ADJUSTMENT OF A FUEL MIXTURE, FOR EXAMPLE GAS, SENT TO A BURNER |
| US10558731B2 (en) | 2012-09-21 | 2020-02-11 | Rosemount Inc. | Flame instability monitoring with draft pressure and process variable |
| ITPD20120281A1 (en) * | 2012-09-27 | 2014-03-28 | Sit La Precisa S P A Con Socio Uni Co | METHOD FOR THE MONITORING AND CONTROL OF COMBUSTION IN COMBUSTIBLE GAS BURNERS AND COMBUSTION CONTROL SYSTEM OPERATING ACCORDING TO THIS METHOD |
| EP2971964B1 (en) | 2013-03-11 | 2017-11-29 | Idea S.p.A. | Burner combustion control method and device |
| IT201800010736A1 (en) | 2018-11-30 | 2020-05-30 | Bertelli & Partners Srl | MIXTURE CONTROL DEVICE FOR PRE-MIXED GAS BURNER |
| JP7413145B2 (en) | 2020-05-14 | 2024-01-15 | リンナイ株式会社 | combustion device |
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| FR1477667A (en) * | 1966-03-08 | 1967-04-21 | Thomson Houston Comp Francaise | Improvements to fluid combustion control systems, particularly in refinery furnaces |
| DE19502901C1 (en) * | 1995-01-31 | 1996-03-21 | Stiebel Eltron Gmbh & Co Kg | Regulating device for gas burner |
| DE10220773A1 (en) * | 2002-05-10 | 2003-11-20 | Bosch Gmbh Robert | Gas burner regulation method in which a signal from an ionization sensor is subject to spectral frequency analysis to set a fuel-air ratio for regulation of the burner |
| DE10220772A1 (en) * | 2002-05-10 | 2003-11-20 | Bosch Gmbh Robert | Gas burner regulation method in which a measurement signal is used to define a regulation signal with a limiting value for an adjustable air number that is used to set the fuel to air ratio |
-
2010
- 2010-03-24 EA EA201290946A patent/EA024861B1/en not_active IP Right Cessation
- 2010-03-24 WO PCT/IT2010/000126 patent/WO2011117896A1/en active Application Filing
- 2010-03-24 ES ES10718298.2T patent/ES2667045T3/en active Active
- 2010-03-24 PL PL10718298T patent/PL2550483T3/en unknown
- 2010-03-24 EP EP10718298.2A patent/EP2550483B1/en active Active
- 2010-03-24 CN CN201080065708.5A patent/CN102869923B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1477667A (en) * | 1966-03-08 | 1967-04-21 | Thomson Houston Comp Francaise | Improvements to fluid combustion control systems, particularly in refinery furnaces |
| DE19502901C1 (en) * | 1995-01-31 | 1996-03-21 | Stiebel Eltron Gmbh & Co Kg | Regulating device for gas burner |
| DE10220773A1 (en) * | 2002-05-10 | 2003-11-20 | Bosch Gmbh Robert | Gas burner regulation method in which a signal from an ionization sensor is subject to spectral frequency analysis to set a fuel-air ratio for regulation of the burner |
| DE10220772A1 (en) * | 2002-05-10 | 2003-11-20 | Bosch Gmbh Robert | Gas burner regulation method in which a measurement signal is used to define a regulation signal with a limiting value for an adjustable air number that is used to set the fuel to air ratio |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112424586A (en) * | 2018-06-15 | 2021-02-26 | 塞莫费雪科学（不来梅）有限公司 | Flame module for spectrometer |
| TWI804316B (en) * | 2022-05-17 | 2023-06-01 | 陳勝雄 | Smart boiler structure that can monitor temperature and combustion ratio |
Also Published As
| Publication number | Publication date |
|---|---|
| EA024861B1 (en) | 2016-10-31 |
| PL2550483T3 (en) | 2018-08-31 |
| ES2667045T3 (en) | 2018-05-09 |
| EA201290946A1 (en) | 2013-08-30 |
| EP2550483B1 (en) | 2018-03-07 |
| CN102869923B (en) | 2016-01-27 |
| WO2011117896A1 (en) | 2011-09-29 |
| EP2550483A1 (en) | 2013-01-30 |
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