CN111998384B - Automatic timing adjusting method for heat accumulating type burner - Google Patents

Automatic timing adjusting method for heat accumulating type burner Download PDF

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Publication number
CN111998384B
CN111998384B CN202010880944.8A CN202010880944A CN111998384B CN 111998384 B CN111998384 B CN 111998384B CN 202010880944 A CN202010880944 A CN 202010880944A CN 111998384 B CN111998384 B CN 111998384B
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valve
frequency
heat accumulator
blower
opening
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CN111998384A (en
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郭志明
伍韵洁
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Guangzhou Longxin Thermal Storage Furnace Co ltd
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Guangzhou Longxin Thermal Storage Furnace Co ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N3/00—Regulating air supply or draught
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L15/00—Heating of air supplied for combustion
    • F23L15/02—Arrangements of regenerators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/004—Systems for reclaiming waste heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2233/00—Ventilators
    • F23N2233/10—Ventilators forcing air through heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/02—Air or combustion gas valves or dampers
    • F23N2235/08—Air or combustion gas valves or dampers used with heat exchanges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/004—Systems for reclaiming waste heat
    • F27D2017/007—Systems for reclaiming waste heat including regenerators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

Abstract

The invention relates to an automatic timing adjusting method for a heat accumulating type burner, which comprises the following steps: the method comprises the following steps: acquiring preset values of the frequency of an air blower or the opening of an air blower valve corresponding to different heat accumulator operation times, wherein the preset values enable the flame of the heat accumulation type combustor to reach preset strength; step two: automatically accumulating and timing the operation time of the heat accumulator; step three: and automatically adjusting the frequency of the air blower or the opening of the air blower valve according to the current heat accumulator operation time and a preset value, and automatically adjusting the frequency of the induced draft fan or the opening of the induced draft fan valve accordingly. The invention can realize the automatic accumulative timing of the heat accumulator in the heat accumulating type burner and automatically adjust the combustion-supporting air to overcome the air resistance caused by the dust accumulation of the heat accumulator.

Description

Automatic timing adjusting method for heat accumulating type burner
Technical Field
The invention relates to the technical field of heat accumulating type industrial furnaces, in particular to an automatic timing adjusting method for a heat accumulating type burner.
Background
The heat accumulating type combustor is commonly used in industrial furnaces and mainly has the functions of providing a safe combustion channel and recovering high-temperature flue gas waste heat through a heat accumulator to heat combustion-supporting air. The heat accumulating type combustor generally comprises a heat accumulating chamber, a metal shell, a refractory castable nozzle and other parts, is also connected with a combustion air pipeline and a flue gas discharge pipeline and is alternately communicated with the two pipelines, the combustion air pipeline generally blows in combustion air through a blower, and the flue gas discharge pipeline generally sucks out flue gas through an induced draft fan. The heat storage chamber is a storage space of the heat storage body, can be made into a round shape or a square shape, and can be filled with heat storage body materials such as high-alumina ceramic heat storage bodies. In the use, when high temperature flue gas passes through the regenerator, the heat accumulator surface can the deposition, blocks up the gap of heat accumulation ball gradually, and gas flow resistance increases, leads to combustion-supporting air to be difficult to get into, and high temperature flue gas is difficult to discharge, and heat accumulation formula combustor spun flame can become gentle, the colour is yellow partially, the blowout direction of skew flame, reduces combustion efficiency, causes the energy extravagant. The heat accumulator with ash can be cleaned and reused, and the elimination rate of each time of heat accumulator replacement is about 25%.
Because the ash of heat accumulator, in the use of heat accumulator, flame intensity can decline gradually, if adopt manual mode to adjust the frequency of air-blower, the frequency of draught fan or set up the aperture of the valve above that, overcome the resistance that the gas flows through the heat accumulator, then waste time and energy, and often need observe repeatedly and adjust, be difficult to accurately adjust required flame intensity.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide an automatic timing adjusting method for a heat accumulating type combustor, which can automatically perform accumulated timing on the operation time of a heat accumulator in the heat accumulating type combustor, adjust the frequency or the valve opening of a combustion air blower according to the current operation time of the heat accumulator determined by the accumulated timing, overcome the air resistance caused by the accumulated dust of the heat accumulator and ensure that the flame of the combustor can keep reaching the preset flame intensity.
In order to realize the aim of the invention, the invention provides an automatic timing adjusting method of a heat accumulating type combustor, which is based on the heat accumulating type combustor, wherein a heat accumulator is arranged in the heat accumulating type combustor, and the heat accumulating type combustor can be alternately communicated with a combustion air pipeline and a flue gas discharge pipeline; the air inlet end of the combustion air pipeline is connected with an air blower, and the air outlet end of the flue gas discharge pipeline is connected with an induced draft fan; the method comprises the following steps:
the method comprises the following steps: acquiring preset values of the frequency of an air blower or the opening of an air blower valve corresponding to different heat accumulator operation times, wherein the preset values of the frequency of the air blower or the opening of the air blower valve are increased along with the increase of the heat accumulator operation times, and the preset values enable the flame of the heat accumulation type combustor to reach preset strength;
step two: automatically accumulating and timing the operation time of the heat accumulator;
step three: and automatically adjusting the frequency of the air blower or the opening of the air blower valve according to the current heat accumulator running time and a preset value, and automatically adjusting the frequency of the induced draft fan or the opening of the induced draft fan valve accordingly.
Preferably, in the first step, the operation time of the heat accumulator is divided into a plurality of time periods, and each time period is correspondingly provided with a preset value; and in the third step, when the current operation time of the heat accumulator reaches a time period, adjusting the frequency of the blower or the opening of a blower valve according to a preset value.
Preferably, in the third step, the frequency of the induced draft fan or the opening degree of the induced draft fan valve is adjusted to be consistent with or corresponding to the frequency of the blower or the opening degree of the blower valve.
Preferably, when the frequency of the blower or the opening degree of a valve of the blower reaches a maximum limit value and the flame cannot reach a preset intensity, cleaning and/or replacing the heat accumulator; after the heat accumulator is cleaned and/or replaced, the running time of the heat accumulator is cleared and the accumulative timing is restarted.
Preferably, clearing the thermal mass operating time and restarting the accumulation timer comprises: and receiving a zero clearing instruction, setting the current operation time of the heat accumulator to be 0, and repeating the second step and the third step.
Preferably, prior to step one, preset values are determined by tests for the raw materials, the fired products and/or the used regenerators to which the regenerative burners are applied.
Preferably, the determination of the preset values by experiments for the raw materials, the fired products and/or the regenerators used in the regenerative burners comprises:
step A: in a certain state, adjusting the frequency of the air blower or the opening of a valve of the air blower, and adjusting the frequency of the induced draft fan or the opening of the valve of the induced draft fan accordingly to enable flame to reach preset strength, and obtaining the running time of the heat accumulator in the state and the corresponding frequency of the air blower or the opening of the valve of the air blower;
and B: after a period of time, when the flame is observed to fail to reach the preset intensity, adjusting the frequency of the air blower or the opening of the air blower valve, and adjusting the frequency of the induced draft fan or the opening of the induced draft fan valve accordingly to enable the flame to reach the preset intensity again, so as to obtain the running time of the heat accumulator and the frequency of the air blower or the opening of the air blower valve corresponding to the running time at the moment; repeating the operation until the frequency of the blower or the opening of the blower valve reaches the maximum limit value, and obtaining the running time of the heat accumulator of a plurality of groups and the frequency of the blower or the opening of the blower valve corresponding to the running time of the heat accumulator;
and C: and B, determining preset values of the frequency of the blower or the opening of the blower valve corresponding to different heat accumulator operation times according to the heat accumulator operation times obtained in the step A and the step B and the frequency of the blower or the opening of the blower valve corresponding to the heat accumulator operation times.
Preferably, the following steps are further included after step B and before step C: and cleaning the heat accumulator, simultaneously clearing the operation time of the heat accumulator, and repeating the step A and the step B to obtain more groups of operation times of the heat accumulator and the corresponding frequency of the blower or the opening of the blower valve.
Preferably, the criterion of the preset intensity reached by the flame is: the color of the flame root is bright white, the tail part is white and yellow, and the flame direction does not deviate.
Preferably, the method is used with a single regenerative burner or a combustion system comprising a plurality of regenerative burners.
Preferably, the heat accumulating type burner is an overhead heat accumulating type burner, and the heat accumulator is a heat accumulating ball.
Compared with the prior art, the invention can obtain the following beneficial effects:
the method can automatically accumulate and time the operation time of the heat accumulator, automatically adjust the frequency of an air blower or the opening of a valve of the air blower according to the current operation time of the heat accumulator and the preset value, and automatically adjust the frequency of an induced draft fan or the opening of the valve of the induced draft fan, thereby overcoming the air resistance caused by the accumulated dust of the heat accumulator and solving the problem of the reduction of the flame intensity caused by the accumulated dust in the use process of the heat accumulator. The accumulative timing and the adjustment are automatically completed by the control system, the adjustment can be accurately performed, the labor is saved, and the adjustment time is saved.
Furthermore, the method of the invention can be suitable for different raw materials, different fired products and different heat accumulators, and has flexible application and wide application range. The method can set different preset values aiming at different raw materials, different fired products and different heat accumulators, and particularly can obtain the operation time of the heat accumulators when a plurality of groups of flames reach preset intensity and the frequency of corresponding blowers or the opening degree of a blower valve through limited times of tests on specific raw materials, fired products and heat accumulators, and fit and search rules to determine the preset values corresponding to different times or time periods.
Drawings
FIG. 1 is a schematic flow diagram of an embodiment of the method of the present invention.
Fig. 2 is a schematic flow chart of the method for determining the preset value according to the embodiment of the present invention.
Fig. 3 is a schematic view of a single regenerative burner to which an embodiment of the method of the present invention is applied.
FIG. 4 is a schematic block diagram of a multi-module combustion system to which embodiments of the method of the present invention are applicable.
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Detailed Description
The automatic timing adjusting method of the heat accumulating type burner of the embodiment is implemented based on the heat accumulating type burner. The regenerative burner may be, for example, a single regenerative burner 10 as shown in fig. 3, or a combustion system including a plurality of regenerative burners 10 as shown in fig. 4. As shown in fig. 3 and 4, the regenerative burner 10 includes a regenerative chamber 11, a nozzle 12, etc., the nozzle 12 is connected to one end of the regenerative chamber 11, the other end of the regenerative chamber 11 is connected to a combustion air pipe 20 through a combustion air valve 13, and is connected to a flue gas discharge pipe 30 through a flue gas discharge valve 14, and by the actions of the combustion air valve 13 and the flue gas discharge valve 14, the regenerative burner 10 can be alternately communicated with the combustion air pipe 20 and the flue gas discharge pipe 30 to realize fire spraying and smoke discharging, and preferably, in the combustion system, a plurality of regenerative burners 10 are alternately reversed in a staggered manner. The combustion air duct 20 has one end connected to a blower 21 and the other end may be closed or communicated with one end connected to the blower 21. The connection of the blower 21 to the combustion air duct 20 may be provided with a blower valve 22. The flue gas discharging pipeline 30 one end is connected with draught fan 31, and the other end can be confined or with the one end intercommunication of being connected draught fan 31, and draught fan 31 and flue gas discharging pipeline 30 junction can be equipped with the draught fan valve. The heat storage body 15 is placed in the heat storage chamber 11, the heat storage body 15 is preferably a heat storage ball, such as a ceramic heat storage ball, the heat storage ball has the advantages of large gaps between the balls, strong ash storage capacity and the like, and a cover body can be arranged on the heat storage chamber 11 for replacing the heat storage body 15.
As shown in fig. 3 to 4, the heat accumulating type burner 10 is preferably an overhead heat accumulating type burner, and the overhead heat accumulating type burner and the combustion system formed by the same can have the structure disclosed in chinese patent publication No. CN109519920A, for example. The overhead heat accumulation burner adopts an upward smoke discharging mode, dust-containing hot smoke in a hearth flows upwards along the same direction, and is blocked by the ball blocking bricks and the bottom of the heat accumulator 15 when passing through the heat accumulation chamber 11, and smoke dust stays at the bottom of the heat accumulator 15; realize air and flue gas through combustion-supporting air valve 13 and smoke damper 14 and trade the back, high temperature air sweeps the dust of heat accumulator 15 bottom downwards by force, makes most dust fall into furnace from the bocca from the bottom of heat accumulator 15, and the flue gas dust is difficult to aggregate on heat accumulator 15 like this, can be from the partial collection dirt in the heat accumulator 15 of clearing up, plays the effect of extension heat accumulator 15's operating time and change cycle. In other embodiments of the present invention, the regenerative burners 10 may be other kinds of regenerative burners 10 that are currently available.
As shown in fig. 1, the method of the present embodiment comprises the following steps, which may be performed by the control system:
s1: and acquiring preset values of the frequency of the blower or the opening of the blower valve corresponding to different heat accumulator operation times. As the operation time of the heat storage body increases, the frequency of the blower or the preset value of the opening of the valve of the blower increases, and the preset value enables the flame of the heat storage type burner to reach the preset intensity.
Specifically, the control system may include a control panel, and the control system may obtain preset values of the frequency of the blower or the opening degree of the blower valve corresponding to different heat accumulator operation times according to an input command received by the control panel.
Specifically, the judgment standard of the preset intensity to be achieved by the flame is that the color of the root of the flame is bright white, the tail of the flame is white and yellow, the flame is strong and powerful, and the flame direction does not deviate. The judgment standard of the preset intensity which is not reached by the flame is that the whole color of the flame is yellow, the flame is soft, and the direction of the flame deviates. Where flame direction refers to the direction of flame emission from the nozzle, in some embodiments the flame direction may be obliquely downward, and in other embodiments the flame direction may be vertically downward.
Specifically, the heat accumulator operation time may be divided into a plurality of time periods, and a preset value may be set for each time period. The frequency of the blower or the opening of the blower valve is adjusted in a segmented mode, and the adjusting process can be further simplified on the basis of meeting the requirement of maintaining the flame intensity.
S2: and automatically accumulating and timing the operation time of the heat accumulator.
Specifically, the heat storage operation time is 0 at the start of use of a new heat storage or a cleaned heat storage, and the heat storage operation time is cumulatively calculated while the heat storage is continuously used.
Specifically, a control panel or display panel of the control system may display the accumulated heat accumulator operating time for operator reference and review.
S3: and automatically adjusting the frequency of the air blower or the opening of the air blower valve according to the current accumulated heat accumulator operation time and a preset value, and automatically adjusting the frequency of the induced draft fan or the opening of the induced draft fan valve along with the current accumulated heat accumulator operation time.
Specifically, when preset values are set in a segmented manner, when the current operation time of the heat accumulator reaches a specific time period, the frequency of the blower or the opening of a blower valve is adjusted according to the corresponding preset values.
Specifically, the step of automatically adjusting the frequency of the induced draft fan or the opening degree of the valve of the induced draft fan therewith comprises the following steps: and automatically adjusting the frequency of the induced draft fan or the opening degree of a valve of the induced draft fan to be consistent with or corresponding to the frequency of the air blower or the opening degree of the valve of the air blower, and correspondingly discharging the flue gas in a matching way with the entering combustion air.
When the frequency of the blower or the opening degree of the blower valve reaches a maximum limit value, for example, the frequency of the blower reaches 50Hz or the opening degree of the blower valve reaches 100%, and the flame cannot reach a preset intensity, for example, the flame cannot reach the preset intensity through observation, the heat accumulator is cleaned and/or replaced. When the heat accumulator is cleaned and/or replaced, the operation time of the heat accumulator is reset and the accumulative timing is restarted after the heat accumulator is reloaded into the heat accumulator chamber. Specifically, the control panel of the control system may receive the clear command, set the current regenerator operation time to 0, and repeat S2 and S3 for the next combustion round.
The above steps S1 to S3 may be carried out in a large flame zone of combustion in an industrial furnace. The combustion process of an industrial furnace can be generally divided into a small fire section, a middle fire section and a large fire section in sequence, and the frequency of a blower or the opening degree of a blower valve needs to be increased in sequence in the stages. The adjusting mode of the embodiment is suitable for automatic adjustment of the large fire section.
As a specific embodiment, the preset values for adjusting the opening of the blower valve according to the accumulated accumulator operation time in the big fire section are shown in table 1 below:
TABLE 1 regenerator run time and corresponding default values
Cumulative accumulator run time (hours) Preset value of opening degree of blower valve (%)
0-200 50
200-500 57
500-1000 62
1000-2000 69
2000-3000 80
Over 3000 95
Specifically, before S1, preset values are determined through experiments for raw materials, fired products and/or used heat accumulators using the heat storage type burner, and after the preset values are set, the same preset values can be adopted for the same raw materials, fired products and heat accumulators without performing the experiments before each combustion. The raw materials refer to metals such as aluminum and the like which need to be combusted in an industrial furnace, and different raw materials have different melting points and other physical and chemical properties, different impurities and different required combustion conditions; the fired product refers to a product obtained by burning raw materials, and different fired products have different requirements on impurity content and combustion conditions; different heat accumulators accumulate soot to different extents and therefore have different preset values for different operating times.
As shown in fig. 2, determining the preset value includes the following steps, which may be performed manually or by a computer or other tool:
s11: and in a certain state, adjusting the frequency of the air blower or the opening of the air blower valve, and adjusting the frequency of the induced draft fan or the opening of the induced draft fan valve accordingly to enable the flame to reach the preset strength, so as to obtain the running time of the heat accumulator in the state and the corresponding frequency of the air blower or the opening of the air blower valve.
Specifically, after the industrial furnace uses the determined kinds of raw materials, fired products, and heat accumulators, step S11 is performed, and step S11 may be performed at the beginning of the large fire.
S12: after a period of time, when the flame is observed to fail to reach the preset intensity, adjusting the frequency of the air blower or the opening of a valve of the air blower, and adjusting the frequency of the induced draft fan or the opening of the valve of the induced draft fan accordingly to enable the flame to reach the preset intensity again, so as to obtain the running time of the heat accumulator and the frequency of the air blower or the opening of the valve of the air blower corresponding to the running time; and repeating the operation until the frequency of the blower or the opening of the blower valve reaches the maximum limit value, and obtaining multiple groups of heat accumulator operation time and the corresponding frequency of the blower or the opening of the blower valve.
Specifically, after the frequency of the blower or the opening of the blower valve reaches the maximum limit, the heat accumulator may be cleaned, the heat accumulator operation time may be cleared, and step S11 and step S12 may be repeated to obtain more sets of heat accumulator operation times and corresponding frequencies of the blower or opening of the blower valve.
S13: and B, determining the preset values of the frequency of the blowers or the opening degree of the blower valves corresponding to different heat accumulator operation times according to the heat accumulator operation times and the frequency of the blowers or the opening degree of the blower valves corresponding to the heat accumulator operation times obtained in the step A and the step B.
Specifically, preset values corresponding to different operation time periods may be determined for use in step S1.
Finally, it should be emphasized that the above-described embodiments are merely preferred examples of the invention, which is not intended to limit the invention. Any modification, equivalent replacement, or improvement made without departing from the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims (7)

1. An automatic timing adjusting method for a heat accumulating type burner is characterized in that:
the method is based on a heat accumulating type burner, the heat accumulating type burner is an overhead heat accumulating type burner, the heat accumulating type burner comprises a heat accumulating chamber and a spray head, the spray head is connected to one end of the heat accumulating chamber, the other end of the heat accumulating chamber is connected with a combustion-supporting air pipeline through a combustion-supporting air valve and is connected with a smoke discharge pipeline through a smoke exhaust valve, and a heat accumulator is placed in the heat accumulating chamber; the air inlet end of the combustion air pipeline is connected with an air blower, and the air outlet end of the flue gas discharge pipeline is connected with an induced draft fan;
the method comprises the following steps:
the method comprises the following steps: acquiring preset values of the frequency of the air blower or the opening of the air blower valve corresponding to different heat accumulator operation times, wherein the preset values of the frequency of the air blower or the opening of the air blower valve are increased along with the increase of the heat accumulator operation time, and the preset values enable the flame of the heat accumulation type burner to reach preset strength;
step two: automatically accumulating and timing the operation time of the heat accumulator;
step three: automatically adjusting the frequency of the air blower or the opening of the air blower valve according to the preset value according to the currently accumulated heat accumulator running time, and automatically adjusting the frequency of the induced draft fan or the opening of the induced draft fan valve along with the adjustment;
before step one, the preset value is determined by experiments aiming at raw materials, fired products and/or the heat accumulator used by the heat accumulating type burner, and the preset value comprises the following steps:
step A: in a certain state, adjusting the frequency of the air blower or the opening of a valve of the air blower, and adjusting the frequency of the induced draft fan or the opening of the valve of the induced draft fan along with the frequency of the air blower or the opening of the valve of the induced draft fan to enable flame to reach preset intensity, and obtaining the running time of the heat accumulator in the state and the corresponding frequency of the air blower or the opening of the valve of the air blower;
and B: after a period of time, when the flame is observed to fail to reach the preset intensity, adjusting the frequency of the air blower or the opening of a valve of the air blower, and adjusting the frequency of the induced draft fan or the opening of the valve of the induced draft fan, so that the flame reaches the preset intensity again, and obtaining the running time of the heat accumulator and the frequency of the heat accumulator corresponding to the air blower or the opening of the valve of the air blower; repeating the above operations until the frequency of the blower or the opening of the blower valve reaches a maximum limit value, and obtaining a plurality of groups of the heat accumulator operation time and the corresponding frequency of the blower or the opening of the blower valve;
and C: determining preset values of the frequency of the blower or the opening of the blower valve corresponding to different heat accumulator operation times according to the heat accumulator operation times obtained in the step A and the step B and the frequency of the blower or the opening of the blower valve corresponding to the heat accumulator operation times;
the method also comprises the following steps after the step B and before the step C: and cleaning the heat accumulator, clearing the running time of the heat accumulator, and repeating the step A and the step B to obtain more groups of running times of the heat accumulator and the corresponding frequency of the blower or the opening of the blower valve.
2. The automatic timing adjusting method of a regenerative burner according to claim 1, wherein:
in the first step, the operation time of the heat accumulator is divided into a plurality of time periods, and each time period is correspondingly provided with a preset value;
in step three, when the current operation time of the heat accumulator reaches the time period, the frequency of the blower or the opening of the blower valve is adjusted according to the preset value.
3. The automatic timing adjusting method of a regenerative burner according to claim 1, wherein:
and in the third step, the frequency of the induced draft fan or the opening degree of a valve of the induced draft fan is adjusted to be consistent with or corresponding to the frequency of the air blower or the opening degree of a valve of the air blower.
4. A method of automatically adjusting the timing of a regenerative burner according to any of claims 1 to 3, wherein:
when the frequency of the blower or the opening of a valve of the blower reaches a maximum limit value and the flame cannot reach preset intensity, cleaning and/or replacing the heat accumulator;
and after the heat accumulator is cleaned and/or replaced, clearing the running time of the heat accumulator and restarting the accumulative timing.
5. The method of claim 4, wherein clearing the regenerator run time and restarting the accumulated timing comprises:
and receiving a zero clearing instruction, setting the current operation time of the heat accumulator to be 0, and repeating the second step and the third step.
6. A method of automatically adjusting the timing of a regenerative burner according to any of claims 1 to 3, wherein:
the judgment standard of the preset intensity of the flame is as follows: the color of the flame root is bright white, the tail part is white and yellow, and the flame direction does not deviate.
7. A method of automatically adjusting the timing of a regenerative burner according to any of claims 1 to 3, wherein:
the method is used for a single regenerative burner or a combustion system comprising a plurality of regenerative burners; the heat accumulating type burner is an overhead heat accumulating type burner, and the heat accumulator is a heat accumulating ball.
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