CN1724938A - Combustion device - Google Patents
Combustion device Download PDFInfo
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- CN1724938A CN1724938A CNA2005100859798A CN200510085979A CN1724938A CN 1724938 A CN1724938 A CN 1724938A CN A2005100859798 A CNA2005100859798 A CN A2005100859798A CN 200510085979 A CN200510085979 A CN 200510085979A CN 1724938 A CN1724938 A CN 1724938A
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- mentioned
- burner
- heat exchanger
- time
- fan
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
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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
- F23N5/24—Preventing development of abnormal or undesired conditions, i.e. safety arrangements
- F23N5/242—Preventing development of abnormal or undesired conditions, i.e. safety arrangements using electronic means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/54—Water heaters for bathtubs or pools; Water heaters for reheating the water in bathtubs or pools
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/04—Sensors
- F24D2220/042—Temperature sensors
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Regulation And Control Of Combustion (AREA)
- Control For Baths (AREA)
Abstract
A fan is operated by a fan controlling means 173 and a rotation number detection means detects a rotation number of block detection. The block detection means 18 has a timer memory means 184 for integrating and storing measurement time of an operation timer 181 for measuring time when a burner is burning and the fan is operating every time the fan is operated and an integration time determination means 186 for conducting the block detection operation for detecting the degree of blocking of the air supply passage and the air exhaust passage of the burner which burned immediately before in the case that the integrated time stored in the timer memory means 184 reaches predetermined time.(C)2006,JPO&NCIPI.
Description
Technical field
The present invention relates to have the detectable burner of giving the function of the inaccessible degree of gas passage and exhaust passage.
Background technology
In existing burner, known with good grounds required being used to makes fan carry out the variation of the drive current (hereinafter referred to as " fan electrical current ") of supply and exhaust by the pressure of predetermined number of revolutions running to burner, surveys to gas passage and exhaust passage obturation degree.
Fig. 7 illustration is as the structural representation of the water heater 9 of this burner, it has the heat exchanger 91 that the water that makes warm water pipeline L flows through, the burner 92 that heats this heat exchanger 91, give these burner 92 air fed fans 93, the control part 94 of the igniting/fire extinguishing of control burner 92 and fan 93 work.Control part 94 has the timer (not shown) of the burning time (hereinafter referred to as " setting burning time ") of the burner 92 that instrumentation presets, also is provided with the microcomputer of carrying out workflow shown in Figure 8 simultaneously.
Be provided with the combustion chamber 900 of accommodating burner 92 in the casing 90 of water heater 9, import as required air (hereinafter referred to as " combustion air ") that burner 92 is burnt combustion chamber 900 passage give gas passage 901, as exhaust passage 902 with the passage of burning and gas-exhausting outside combustion chamber 900 is discharged to casing 90 of burner 92, by rotating fan 93, with the above-mentioned combustion air burner 92 through supplying with combustion chambers 900 for gas passage 901, the burning and gas-exhausting of burner 92 90 is discharged to outside the casing through the exhaust passage.
Like this, after switch starting (not shown), by control part 94 burner 92 is lighted a fire, but by the burn revolution (hereinafter referred to as " GB revolution ") of institute's air demand of supplied burner 92, rotate the motor door of fan 93, in this simultaneously, the timer of control part 94 begins the above-mentioned setting of instrumentation burning time.Above-mentioned setting is set at the temperature stabilization required time (for example 10 minutes) that makes in the exhaust passage 901 with fan motor M burning time.
Make burner 92 fire extinguishings by control part 94 when connecting shutdown switch (not shown),, when through set burning time time is up carry out survey give gas passage 901 inaccessible degree exploration operation with exhaust passage 902 inaccessible degree at timer this moment.
Give the inaccessible degree of gas passage and exhaust passage, be by will the revolution of setting in advance (hereinafter referred to as " occlusion detection revolution ") down during rotation fan motor M as the fan electrical current of drive current, with give gas passage and exhaust passage under the normal condition of non-blocked state during by above-mentioned occlusion detection revolution rotation fan motor M required drive current (hereinafter referred to as " reference current ") compare and judge.In addition, fan electrical current will change according to the inaccessible degree of giving gas passage 901 with exhaust passage 902, if fan electrical current is littler than reference current, then can judge to gas passage 901 and exhaust passage 902 to be blocked state.
Specifically, when burner 92 is burned to setting-up time when above, temperature stabilization in combustion chamber 900 and the exhaust passage 902, give gas passage 901 and exhaust passage 902 constant with respect to the aeration resistance of exhaust stream, thereupon, the temperature stabilization of the fan motor M of the fan 92 of working simultaneously with the burning of burner, fan electrical current value under this state during with the occlusion detection revolution that detects and said reference current ratio just can be calculated the correction coefficient of the target revolution that is used to proofread and correct fan motor M.Based on this correction coefficient of calculating, carry out again the correction of target setting revolution and handle then.
In other words, when the inaccessible degree of giving 901 one-tenths exhaust passages of gas passage 902 increases, current ratio reference current hour, then according to the correction coefficient of calculating by this fan electrical current, adjustment target revolution.
But it is for example the sort of with the short period interval, starting/stop the bathing of using repeatedly heats with burner or hot-water heating burner, when burner was no more than when burning repeatedly in the above-mentioned setting scope of burning time burning time, do not carry out above-mentioned occlusion detection operation, so just might lose the chance of surveying the inaccessible degree of giving gas passage or exhaust passage.
Summary of the invention
The present invention proposes just in view of the above, and purpose is the burner that provides following, even it in the use of starting repeatedly/stopping with the short time interval, also can carry out the occlusion detection operation reliably.This burner has: " accommodate the combustion chamber of burner; What be communicated with above-mentioned combustion chamber gives gas passage and exhaust passage; Through the above-mentioned fan of the combustion air of said burner being supplied with above-mentioned combustion chamber for the gas passage; Survey the current detection device of said fans drive current; Survey the revolution sniffer of said fans revolution; Set the target revolution speed setting device of said fans target revolution; Rotate the fan control device of said fans with the target revolution of above-mentioned target revolution speed setting device setting, and above-mentioned target revolution is made as predetermined occlusion detection revolution, by said fans control device starting said fans, when the revolution detection goes out the occlusion detection revolution, based on the current value that above-mentioned current detection device is surveyed, carry out and survey the above-mentioned occlusion detection device of giving the occlusion detection operation of the inaccessible degree of gas passage and exhaust passage.”
Be used to realize that the technique device of the present invention of above-mentioned purpose is: " above-mentioned occlusion detection device has: the instrumentation said burner is burnt; the time of the running timer institute instrumentation of said fans working time, adds up the timer storage device of storage in each work of said fans; Reach the situation of the scheduled time in the cumulative time of above-mentioned timer memory device stores, carry out above-mentioned occlusion detection operation before this, with the air supply channel of surveying aflame burner cumulative time decision maker with exhaust passage obturation degree in the next-door neighbour.”
According to above-mentioned technique device, when the cumulative time of timer storage device accumulative total storage reached the scheduled time, this occlusion detection of carrying out the inaccessible degree of air supply channel and exhaust passage of the burner of surveying burning was before operated in the next-door neighbour.
The technique device of the described invention of claim 2 is to make aforesaid right require in 1 " to have: in the moment in instrumentation effluxion predetermined reset time that stops timer of the fire extinguishing of instrumentation said burner, said fans dwell time, make the cumulative time of storing in the above-mentioned timer storage device return the resetting means of initial value.”
So in burner fire extinguishing, the time of fan stall reaches predetermined resetting time when above, by resetting means, makes the cumulative time of storing in the timer storage device return initial value.In other words, put out a fire at burner, the time of fan stall is elongated, the situation that the temperature of fan motor reduces, owing to carried out burner combustion again, the accumulative total of fan work time, thus can suppress occlusion detection operation and carry out the time in the exhaust passage with the temperature fluctuation of fan motor, and the inhibition fan fluctuation of making air quantity.
The technique device of the invention of claim 3 is to make in the claim 1 that " above-mentioned timer storage device has that instrumentation time that stops timer with the said burner fire extinguishing of instrumentation, said fans dwell time deducts and the substracting unit stored from the cumulative time of storage.”
So, burner fire extinguishing and time that fan stops can deduct from the cumulative time of timer memory device stores.In other words, the time that descends with the temperature of fan motor according to deducting from the cumulative time that the burner fire-extinguishing fan stops and in the exhaust passage is judged, just can suppress logical time of the exhaust of occlusion detection operation execution and the temperature fluctuation of fan motor, suppress the fluctuation of fan delivery.
Technique device of the present invention is to make in above every claim in the claim 4～6, " has: by the heat exchanger of said burner heating; Be connected above-mentioned heat exchanger and conduct by the warm water circulating line between the warm water receiving portion of the warm water supply object of above-mentioned heat exchanger heats; Be located in the above-mentioned warm water circulating line in the above-mentioned heat exchanger upstream side passage, return the hot water temperature's of above-mentioned heat exchanger cooling-water temperature sensor with detection; In the situation of temperature more than predetermined temperature that above-mentioned cooling-water temperature sensor is surveyed, carry out the reflux heat coolant-temperature gage decision maker of above-mentioned occlusion detection operation by above-mentioned occlusion detection device.”
So, since occlusion detection operation can be in the warm water circulating line water temperature of heat exchanger upstream side passage be that the hot water temperature of Returning heat-exchanger carries out when predetermined temperature is above, so the temperature fluctuation of heat exchanger in the time of can suppressing occlusion detection work execution, the aeration resistance when making burning and gas-exhausting pass through heat exchanger is constant.So just, can suppress the fluctuation of fan delivery in the occlusion detection operation execution.
The invention effect
The present invention has said structure and following peculiar effect can be arranged owing to it.
Owing to be to carry out occlusion detection after reaching the scheduled time and operate in work time of accumulative total of burner and fan at every turn, even thereby burner with the short time interval burn repeatedly/during use, also can survey the inaccessible degree of air supply channel or exhaust passage reliably with stopping.
The invention of claim 2 is to put out a fire at burner, when the temperature of elongated and exhaust passage and fan motor of the time that fan stops to reduce, under not carrying out occlusion detection operation, can suppress the occlusion detection operation carry out in the exhaust passage with the temperature fluctuation of fan motor, thereby can improve the detection accuracy of air supply channel and exhaust passage obturation degree.
Invention according to claim 3, be to put out a fire at burner, fan stops, judge reducing from the cumulative time with the fan motor decrease of temperature time in the exhaust passage, just can suppress thus the occlusion detection operation carry out in the exhaust passage with the fluctuation of fan motor temperature with suppress the fluctuation of fan delivery, thereby can improve detection accuracy to gas passage and exhaust passage obturation degree.
Invention according to claim 4～6, except that above-mentioned effect, owing to be under the state more than the predetermined temperature, to carry out the occlusion detection operation in the temperature of heat exchanger, so can suppress because of heat exchanger temperature changes the fluctuation that produces fan delivery, so can further improve the detection accuracy of the inaccessible degree of air supply channel and exhaust passage.
Description of drawings
Fig. 1 is the structural representation as the illustrative combined type hot water apparatus 1 of the burner of the invention process form.
Fig. 2 is the block diagram as the control part 14 of the illustrative combined type hot water apparatus 1 of the burner of the invention process form.
Fig. 3 is the workflow diagram as the illustrative combined type hot water apparatus 14 of the burner of the invention process form.
Fig. 4 is the workflow diagram as the illustrative combined type hot water apparatus 14 of the burner of the invention process form.
Fig. 5 is the block diagram as the control part 14 of the illustrative combined type hot water apparatus 1 of burner of the present invention's second form of implementation.
Fig. 6 is the workflow diagram as the control part 14 of the illustrative combined type hot water apparatus 1 of burner of the present invention's second form of implementation.
Fig. 7 is the schematic configuration diagram as the illustrative hot water apparatus 9 of burner of existing example.
Fig. 8 is the workflow diagram as the illustrative hot water apparatus 9 of burner of existing example.
Concrete form of implementation
The optimised form of implementing the invention described above is described in detail in detail below with reference to accompanying drawing.
Fig. 1 is the schematic diagram as the structure of the illustrative combined type hot water apparatus of the burner of the invention process form, and Fig. 2 is the block diagram that shows the control part structure of bright its work of control, and Fig. 3 and Fig. 4 are the flow charts that shows the work of bright control part shown in Figure 2.
The details of each several part below is described.
As shown in Figure 1, combined type hot water apparatus 1 integrally comprises to kitchen and bathroom etc. supplies with the hot water apparatus 2 of warm water and bathing pool device 3 with the water heat cycles in the bathtub A, and this hot water apparatus 2 is contained in the main body housing 10 of combined type hot water apparatus 1 with bathing pool device 3.On this main body housing 10, be formed with from the exhaust outlet 101 of hot water apparatus 2, as entering the air supply opening 102 and 103 of hot water apparatus 2 with the inlet port of the combustion air of bathing pool device 3 with the burning and gas-exhausting of bathing pool device 3 discharges.In addition, combined type hot water apparatus 1 also has the control part 14 of control hot water apparatus 2 and 3 work of bathing pool device.
Hot water side heat exchanger 21 is connected with the hot water pipeline 12 of the water of upstream side water pipe being supplied with kitchen and bathroom etc.Be provided with detection flows to the discharge of hot water side heat exchanger 21 from upstream side big quantity sensor W among the hot water pipeline L2, survey cooling-water temperature sensor 72 by the hot water temperature of hot water side heat exchanger 21 heating.
Hot water side burner 22 is connected with gas piping G through switch valve C2, supplies with coal gas from gas piping G.The flame detection sensor F2 of the combustion flame of surveying hot water side burner 22 can be set near hot water side burner 22, by ignitor electrode 15 by applying the igniter plug S2 that high voltage carries out spark discharge.
Hot water side fan 23 has tachometer generator R2 that surveys fan motor M2 revolution and the current sensor E2 that surveys the current value of fan motor M2.
3 in bathing pool device has beam pipe A1 that connection links to each other with bathtub A and the warm water circulating line L3 of return duct A2, the bathing pool side heat exchanger 31 that is connected with the warm water circulating line, the bathing pool side burner 32 of heating bathing pool heat exchanger 31 and the bathing pool crosswind fan 33 of supplying with combustion air for bathing pool side burner 32, be formed with the combustion chamber 300 of accommodating bathing pool side burner 32 in the bathing pool device 3, will import the air supply channel 301 in the combustion chamber 300 from the combustion air that air supply opening 103 sucks, the burning and gas-exhausting of bathing pool side burner 32 is passed through the exhaust passage 302 of bathing pool side heat exchanger 31 guiding exhaust outlets 101.Exhaust passage 302 is communicated with exhaust outlet 101 through road 104, above-mentioned interflow.In addition, above-mentioned warm water circulating line L3 is corresponding to the warm water circulating line of stating the specific item of claim 4 invention, and above-mentioned bathing pool side heat exchanger 31 is corresponding to the heat exchanger of the specific item of invention of stating claim 4.
The warm water circulating line 13 of the water circulation that bathing pool side heat exchanger 31 is interior with making bathtub is connected.Be provided with the circulating pump P that the water in the bathtub A is supplied with bathing pool side heat exchanger 31 among the warm water circulating line L3, detection is surveyed the cooling-water temperature sensor 73b that flows to the water temperature (hereinafter referred to as " reflux heat coolant-temperature gage ") of bathing pool side heat exchanger 31 from bathtub A by the hot water temperature's of bathing pool side heat exchanger 31 heating cooling-water temperature sensor 73a.This cooling-water temperature sensor 73b is located near the return duct connecting portion 311 of bathing pool side heat exchanger 31.In addition, above-mentioned cooling-water temperature sensor 73b is corresponding to the cooling-water temperature sensor as the specific item of invention of the claim 4 stated.
Bathing pool side burner 32 is connected with gas piping through switch valve C3, supply with coal gas by gas piping G, near bathing pool side burner 32, be provided with the combustion flame acquisition sensor F3 of the combustion flame of surveying bathing pool side burner 32, apply high voltage to carry out the igniter plug S3 of spark discharge with ignitor electrode 15.
Bathing pool crosswind fan 33 has the tachometer generator R3 that surveys fan motor M3, surveys the current sensor E3 of the current value of fan M3.Above-mentioned tachometer generator R2, R3 are corresponding to as the revolution sniffer of having stated the specific item of invention of claim 1, and above-mentioned current sensor E2, E3 are corresponding to the current detection device of the specific item of invention of stating claim 1.
Fan motor control part 17 comprises: according to the target combustion amount of hot water side burner 22 with bathing pool side burner 32, set the target revolution configuration part 171 of the target revolution Na of motor M2, M3; The calculating part 172 of the correction coefficient of the correction coefficient H of the target revolution Na of fan motor M2, M3 that calculating is set; In the target revolution knot that target revolution configuration part 171 is set, arrive the revolution control part 173 of control fan motor M2, M3.In addition, fan motor control part 17 is set the moment of the arbitrary igniting in hot water side burner 22 or bathing pool side burner 32 for, make fan motor M2, M3 both startings, thereby prevent to pass through road, interflow 104 adverse currents to hot water apparatus 2 one sides from the burning and gas-exhausting of hot water apparatus 2 these sides.In addition, above-mentioned target revolution configuration part 171 is corresponding to as the target revolution speed setting device of having stated the specific item of claim 1 invention, and above-mentioned revolution control part 173 is then corresponding to the fan control device as the specific item of the invention of having stated claim 1.
Occlusion detection control part 18 comprises: instrumentation fan motor M3 is from starting the fan ON timer 181 to dwell time; The fan OFF timer 182 of instrumentation fan motor M3 from stopping to starting; Instrumentation is from the light a fire bathing pool burning timer 183 of attack time of bathing pool side burner; The time accumulative total of fan ON timer 181 instrumentations is stored and is deducted the accumulative total memory 184 of the time of fan OFF timer 182 instrumentations; Judge the inaccessible detection unit 185 of the inaccessible degree of air supply channel 201,301 and exhaust passage 202,302; At the fixed time whether the time of storing in the judgement accumulative total memory 184 (for example 10 minutes) above cumulative time detection unit 186; The removing detection unit 187 that will add up memory time of memory 184 and remove according to time of fan OFF timer 182 instrumentations; Judge the detection unit 188 burning time that instrumentation time of bathing pool burning timer 183 is whether above at the fixed time; Whether the detecting temperature of judging cooling-water temperature sensor 73b reflux heat coolant-temperature gage detection unit 189 more than predetermined temperature (for example 30 ℃).
Have, above-mentioned occlusion detection control part 18 has been stated the occlusion detection device of the specific item of invention of claim 1 corresponding to conduct again.In addition, said fans ON timer 181 has been stated the running timer of the specific item of invention of claim 1 corresponding to conduct, said fans OFF timer 182 is corresponding to the timer that stops of the specific item of invention that stating claim 2 and 3, above-mentioned accumulative total memory 184 is corresponding to the timer storage device of the specific item of invention of stating claim 1 and 3, above-mentioned cumulative time detection unit 186 is corresponding to as the cumulative time decision maker of having stated the specific item of invention of claim 1, the reflux heat coolant-temperature gage decision makers of the specific item of invention during 189 of above-mentioned reflux heat coolant-temperature gage detection units require corresponding to aforesaid right.
[practical operation of the burner of above-mentioned form of implementation]
Below in the burner according to the above-mentioned form of implementation of flowchart text of Fig. 3 and 4, with the bathing pool device be the work of the combined type water heater 1 of example during starting.
Connect bathing pool heater switch (not shown), behind the ON signal of output bathing pool burner 32, control part 14 is exported to fan control portion 17 with bathing pool crosswind fan ON signal, by the target revolution Na of target revolution configuration part 171 settings corresponding to the fan motor M3 of quantity combusted, and to change the revolution that beacon sensor R3 detects and become above-mentioned target revolution Na in order to make, carry out FEEDBACK CONTROL by revolution control part 173, fan motor 2 is rotated by predetermined number of revolutions.The switch of opening bathing pool side burner 32 by burner control part 16 closes C3 again, simultaneously to ignitor electrode 15 output ignition instruction signals.Input has the ignitor electrode of ignition instruction signal to apply high voltage for igniter plug S3 to carry out spark discharge, light bathing pool side burner 32.
Imported the control part 14 of burning signal from flame detection sensor F3, working time, by (S71～S75) burning time of bathing pool burning timer 183 beginning instrumentation bathing pool side burners 32 by the fan ON timer 181 beginning instrumentation fan motor M3 of occlusion detection control part 15.
Then, bathing pool heater switch (not shown) disconnects, and behind the output bathing pool side burner OFF signal, closes switch valve C3 by burner control part 16, makes bathing pool side burning 32 fire extinguishings, stops the timing of bathing pool burning timer 183 simultaneously.If when 32 fire extinguishings of this bathing pool side burner and water heater side burner 22 during in burning, fan ON timer 181 stops, simultaneously the numeration Cp of record in the counter (not shown) of fan ON timer 181 being stored in the accumulative total memory 184 (ST6～ST10).
Set in the cumulative time detection unit 186, reach M3 from fan motor and begin starting to rising to the needed accumulative total of equilibrium temperature working time (hereinafter referred to as " benchmark cumulative time ") S1 (this time for example is 10 minutes), when the time T of storing in the above-mentioned accumulative total memory 184 is not on fiducial time, in fan rotation the carrying out back cleaning of carrying out certain hour for the burning and gas-exhausting of combustion chamber 300 is discharged, stop the fan motor M3 of bathing pool crosswind fan 33 and the fan motor M2 of hot water side fan 23, begin simultaneously by the instrumentation to the dwell time of fan motor M3 of the fan OFF timer of occlusion detection control part 18 (ST11～ST14).In addition, above-mentioned " benchmark cumulative time " is corresponding to " scheduled time " of the specific item of invention of stating claim 1.
At this moment, facing control by burner control part 16 is to be connected and output bathing pool side burner ON signal by bathing pool heater switch (not shown), still connect and output hot water side ON signal by hot-water switch (illogical showing), monitor simultaneously dwell time (ST15-A, the ST16～ST17) of fan motor M3 by the removing detection unit 187 of occlusion detection control part 18.
Remove detection unit 187 and set dwell time (for example " 30 minutes ") S4 that burner needs to cooling, if the counting Cm that the counter of said fans OFF timer 182 (not shown) is write down then stops fan OFF timer 182 more than dwell time, make simultaneously accumulative total memory 184 in the storage time T return initial value (0 minute) (ST15-A, ST18).
Have again, in above-mentioned ST16, when the heater switch (not shown) of bathing pool is connected, during output bathing pool side ON signal, fan OFF timer 182 stops, after the counting Cm that the time T of storage deducts fan OFF timer 182 from accumulative total memory 184 multiply by factor alpha (for example 0.1) value simultaneously, carry out the later detection operation of above-mentioned ST2 (ST16, ST19-A).In above-mentioned ST17, when hot-water switch (not shown) is connected, during output hot water side burner ON signal, after stopping counting Cm that fan OFF timer 182 deducts fan OFF timer 182 from accumulative total memory 184 simultaneously and multiply by the value of factor alpha, then carry out the later control operation of aftermentioned ST12 (ST17, ST20-A).
Only add up to store the working time of fan motor M3 reality thus in accumulative total memory 184, the temperature of fan motor M3 rises slowly.But for example stop 30 fens when above for fan motor M3, then the temperature of burner integral body is regarded as chilled temperature, remove the time of storage in the accumulative total memory 184, making the original state before running turns back to beginning.
On the other hand, in above-mentioned ST1, though do not export bathing pool side burner ON signal, but under hot-water switch (not shown) on-state during from water sensor W output water flowing signal, control part 14 rotates the net fan motor M2 of hot water side fan 23 by fan motor control part 17.In addition, hot water side fan ON signal is exported to fan motor control part 17, set the target revolution Na of the fan motor M2 that adapts with quantity combusted by target revolution configuration part 171, become above-mentioned target revolution Na for the revolution that tachometer generator R2 is detected simultaneously, carry out FEEDBACK CONTROL and fan motor M2 is rotated by revolution control part 173, in this simultaneously, the fan motor M3 of hot water side fan 33 is rotated according to predetermined number of revolutions.Open the switch valve C2 of hot water side burner 22 then by burner control part 16, to ignitor electrode output ignition instruction signal.The ignitor electrode 15 of having imported ignition instruction signal applies high voltage to igniter plug S2 makes its spark discharge, lights hot water side burner 22.
Imported the control part 14 of burning signal from flame detection sensor F2, by the fan ON timer 18 of occlusion detection control part 18, the working time of beginning instrumentation fan motor M2 (ST21～ST24).
Disconnect when hot-water switch (not shown) then, after the output of hot water side burner OFF signal, close switch valve C2, make 22 fire extinguishings of hot water side burner, carry out the later control operation of above-mentioned ST10 (ST25～ST26) by burner control part 16.
In addition, in above-mentioned ST9, when hot water side burner 22 burns when 32 fire extinguishings of hot water side burner, bathing pool burning timer 183 is resetted, remove the counting Cb (ST27) of record in the counter (not shown), carry out the control operation of above-mentioned ST25 and ST26 simultaneously, and then carry out the later control operation of above-mentioned ST10.
In above-mentioned ST11, when the time T of storage in the above-mentioned accumulative total memory 184 is on benchmark cumulative time S1, carry out the control operation of ST28 described later (being right after the judgement of the burning time of the bathing pool side burner 32 of fan ON timer 181 after stopping) and ST29 (being right after the judgement of the reflux heat coolant-temperature gage of the bathing pool side heat exchanger 31 of fan ON timer 181 after stopping).
The bathing pool side heat exchanger 31 that set in the detection unit 188 by the heating of bathing pool side burner burning time rises to (for example 1 minute) S3 of required time of predetermined temperature (hereinafter referred to as " benchmark heat time heating time ") with exhaust passage 302, the counting Cb that writes down in the counter (not shown) of bathing pool burning timer 183 was than benchmark S3 heat time heating time hour, also be that bathing pool side burner 32 not bum to benchmark during heat time heating time, just regard as bathing pool side heat exchanger 31 and not fully heating of exhaust passage 302, after fan motor M2～M3 is disconnected, carry out the later control operation of above-mentioned ST13.
Set reflux heat coolant-temperature gage (hereinafter referred to as " benchmark reflux heat coolant-temperature gage ") (for example 30 ℃) ts that bathing pool side heat exchanger 31 can be heated to the above benchmark of predetermined temperature in the reflux heat coolant-temperature gage detection unit 189, when lower than benchmark reflux heat coolant-temperature gage ts, be considered as not fully heating of bathing pool side heat exchanger 31, after turn-offing fan motor M2, M3, carry out the later control operation of above-mentioned ST12 (ST28～ST29).In addition, above-mentioned " benchmark reflux heat coolant-temperature gage has then been stated " predetermined temperature " of the specific item of invention of claim 4 corresponding to conduct ".
In accumulative total memory 184 time T of storage more than the benchmark cumulative time S1 and the counting Cb of bathing pool burning timer 183 more than benchmark S3 heat time heating time, the control temperature of cooling-water temperature sensor T3b is convenient to ST30 described later and is carried out the air supply channel 301 of bathing pool device 3 sides and the occlusion detection operation (ST11, ST28, ST29) of exhaust passage 302 when benchmark reflux heat coolant-temperature gage Ts is above simultaneously.
In the inaccessible judgement, the target revolution of the fan motor M3 that target revolution configuration part 171 is set at first, become the target revolution (for example during bathing pool side burner 32 maximum combustions 0.12 times of the target revolution of fan motor M3) (hereinafter referred to as " occlusion detection revolution ") of benchmark when being set at the inaccessible degree of surveying air supply channel 301 and exhaust passage 302, for the revolution that tachometer generator R3 is surveyed becomes above-mentioned occlusion detection revolution, can carry out FEEDBACK CONTROL starting fan motor M3 simultaneously.Relatively the probe current of the current sensor E3 of this moment promptly flows through fan electrical current (hereinafter referred to as " benchmark the fan electrical current ") is of standard under the fan electrical current i of fan motor M3 and the normal condition immediately, when the fan electrical current i that detects as current sensor E3 is lower than benchmark fan electrical current is, be judged as air supply channel 301 or exhaust passage 302 is blocked state (ST30).Then, when send as an envoy to according to the above-mentioned fan electrical current i judgement that detects air supply channel 301 or exhaust passage 302 are blocked state, carry out the correction of ST31 described later and handle.
Like this, by making the temperature stabilization of bathing pool side heat exchanger 31 and exhaust passage 302, can make bathing pool side heat exchanger 31 constant with the aeration resistance of exhaust passage 302, under the temperature stabilization state of this external fan motor M3, make fan motor M3 work by the occlusion detection revolution of setting, instrumentation fan electrical current at this moment just can be carried out inaccessible judgement in view of the above under stable condition.
In proofreading and correct processing, calculate the correction coefficient Hs (hereinafter referred to as " N Reference Alignment coefficient ") of the target revolution Na that is used to proofread and correct fan motor M3 based on the said fans current i by above-mentioned correction factor calculation portion 172, when this correction coefficient H when the correction coefficient Hs that becomes benchmark is above, carry out the correction of target revolution Na, as for the target revolution Nb after proofreading and correct, can be by above-mentioned correction coefficient H being gone take advantage of the target revolution Na that sets according to the target combustion amount of bathing pool side burner 32 to calculate (ST31).
Remove the time T of storage in the accumulative total memory 184 then, stop motor M2, M3 (ST32～ST33) simultaneously.
According to the above, even in the use that burner burnt repeatedly/stops with the short time interval, owing to can add up short like this burning time, in the exhaust passage, carry out the occlusion detection operation, just can survey the inaccessible degree of air supply channel and exhaust passage with good precision with the moment of the temperature stabilization of fan motor.
[second form of implementation]
Second form of implementation that is used to implement the invention described above below with reference to description of drawings.
As the illustrative combined type hot water apparatus of the burner of the present invention's second form of implementation, identical with above-mentioned first form of implementation have general configuration shown in Figure 1,3 one-tenth overall structures of hot water apparatus 2 and bathing pool device.
Bathing pool device 3 is identical with above-mentioned first form of implementation, has bathing pool pipeline C3, bathing pool side heat exchanger 31, bathing pool side burner 32, bathing pool crosswind fan 33, is formed with combustion chamber 300, air supply channel 301 and exhaust passage 302 in the bathing pool device 3.Exhaust passage 302 is communicated with exhaust outlet 101 through road 104, above-mentioned interflow.Bathing pool side heat exchanger 31 is connected with warm water circulating line C3.Be provided with circulating pump P, cooling-water temperature sensor 73a, cooling-water temperature sensor 73b among the warm water circulating line C3.Cooling-water temperature sensor 73b is located near the return duct connecting portion 311 of bathing pool side heat exchanger 31.Bathing pool side burner 32 is connected with gas piping G through switch valve C3, is supplied with coal gas, is provided with flame detection sensor F3 and igniter plug S3 near bathing pool side burner 32 by gas piping G.Bathing pool crosswind fan 33 has tachometer generator R3 and current sensor E3.
Fig. 5 is the block diagram that shows the structure of bright above-mentioned control part 14, is provided with burner control part 16, fan motor control part 17, occlusion detection control part 18.Fan motor control part 17 has target revolution configuration part 171, correction factor calculation portion 172, revolution control part 173, sets for when hot water side burner 22 or bathing pool side burner 32 have side igniting, makes fan motor M2, M3 both startings.Occlusion detection control part 18 have fan ON timer 181, fan off timer 182, bathing pool burning timer 183, accumulative total memory 184, inaccessible detection unit 185, cumulative time detection unit 186, burning time detection unit 188 with backflow warm water detection unit 189.Be provided with the detection unit 190 that resets in addition, reach aftermentioned during predetermined resetting time in order to time, resetted the memory time of accumulative total memory 184 at fan OFF timer 182 instrumentations.Above-mentioned 190 resetting means of having stated the specific item of invention of claim 2 corresponding to conduct of detection unit that reset.
[real work of the burner of above-mentioned second form of implementation]
The workflow diagram of control part 14, replacement is made portion's workflow part as the above-mentioned first form of implementation control and is shown bright Fig. 4, adopt the flow chart of Fig. 6, it is example that following bathing pool device 3 is connected situations, and the work of the burner 1 of above-mentioned second form of implementation is described according to the flow chart of Fig. 3 and Fig. 6.
After bathing pool heater switch (diagrammatic sketch shows) is connected the ON signal of the burner 32 of exporting the bathing pool side, identical with above-mentioned first form of implementation, the control operation of execution from ST2 to ST5, after bathing pool heater switch (not shown) disconnects and exports bathing pool side burner OFF signal, then carry out control operation from above-mentioned ST7 to ST10.At this moment, when the time T of storage in the accumulative total memory 184 does not reach that the benchmark cumulative time, S1 was above, carry out above-mentioned control operation (ST1～ST14) from ST12 to ST14.
Reset to set in the detection unit 190 and stop to dropping to the required dwell time of uniform temperature (hereinafter referred to as " benchmark dwell time " (for example " 3 minutes ")) S2 with fan motor M3, if the counting Cm of record is more than fiducial time S2 in the counter of said fans OFF timer 182 (not shown), then stop fan OFF timer 182, make the time T of storage in the accumulative total memory 184 return initial value (0 minute) simultaneously.In addition, above-mentioned " benchmark dwell time " is corresponding to " the predetermined reset time " of the specific item of invention of stating claim 2.
In above-mentioned ST15-B, if the counting Cm of record does not reach more than the benchmark dwell time S2 in the counter (not shown) of fan OFF timer 182., whether be that bathing pool heater switch (not shown) is connected then, exported bathing pool side burner ON signal, still hot-water switch (not shown) connection and exported hot water side burner ON signal (ST15-B, ST16～ST17) by burner control part 16 monitoring.
In above-mentioned ST16, when bathing pool heater switch (not shown) is connected output bathing pool side burner ON signal, then stop fan OFF timer 182 backs carry out the later control operation of above-mentioned ST2 (ST16, ST19-B).In above-mentioned ST17, when hot-water switch (not shown) is connected, during the output of hot water side burner ON signal, then after stopping fan OFF timer 182, carry out the later control operation of ST22 (ST17, ST20-A).
Like this, bathing pool side burner 32 fire extinguishing, the time that fan 33 stops is elongated, and bathing pool side heat exchanger 31 is with exhaust passage 302, when fan motor M3 equitemperature is low, can add up again.
In above-mentioned ST1, do not export bathing pool side burner ON signal, but under hot-water switch (not shown) on-state during from water sensor W output water flowing signal, identical with above-mentioned first form of implementation, the control operation of execution from ST21 to ST24, when exporting hot water side burner OFF signal in hot-water switch (not shown) disconnection, after carrying out the control operation of ST26, and the control operation behind the execution ST10 (ST21～ST26).
In addition, at above-mentioned ST9 during when bathing pool side burner 32 fire extinguishing and hot water side burner 22 aflame situations, identical with above-mentioned first form of implementation, when carrying out the control operation of ST27, carry out the control operation of above-mentioned ST25 and ST26, carry out the later control operation of above-mentioned ST10 (ST27, ST25～ST26) again.
In above-mentioned ST11, the time T of storing in above-mentioned accumulative total memory 184 is when the benchmark cumulative time, S1 was above, and is identical with above-mentioned first form of implementation, carries out the control operation of ST28 and ST29.
In ST28, for the counting Cb of record in the counter (not shown) of bathing pool side burning timer 183 than benchmark S3 heat time heating time hour, or at ST29, when the detecting temperature of cooling-water temperature sensor 73b is lower than benchmark reflux heat coolant-temperature gage ts, identical with above-mentioned first form of implementation, carry out the later control operation of ST12.
In ST29, when the detecting temperature of cooling-water temperature sensor T3b when benchmark reflux heat coolant-temperature gage ts is above, identical with above-mentioned first form of implementation, carry out the later control operation of ST30 (ST11, ST28～ST33).
Like this, then in the temperature stabilization of bathing pool side heat exchanger 31 with exhaust passage 302, bathing pool side heat exchanger 31 is constant with the aeration resistance of exhaust passage 301, in addition, under the state of the temperature stabilization of fan motor M3, fan electrical current i according to instrumentation during with the occlusion detection revolution fans in operation motor M3 that sets can carry out inaccessible judgement under stable condition.
According to the above, even burner be with the short time interval burn repeatedly/when stopping using, also can be added up the burning time of this weak point, carry out in the exhaust passage and the occlusion detection operation of the temperature of fan motor when stablizing, thereby can survey the inaccessible degree of air supply channel or exhaust passage reliably.
Since can be in the exhaust passage with the temperature stabilization condition of fan motor under carry out obturation and judge, so can also be with the good precision detection feed path and the inaccessible degree of exhaust passage.
[other forms of implementation]
In addition, in above-mentioned first and second form of implementation, when in obturation is judged, judging air supply channel 301 or exhaust passage 302, be to handle by the correction that fan motor control part 17 is carried out the revolution of proofreading and correct fan motor M3 for blocked state.But also can be provided with abnormity determining device, to report the work that stops bathing pool device 3 in unusual.
Moreover, in above-mentioned first and second form of implementation, illustrative is the occlusion detection operation of bathing pool device 3, but also can in hot water apparatus 2, carry out and the same control of above-mentioned occlusion detection operation, or also can in water heater that constitutes by single heat-exchange device or bathing pool boiler-burner, carry out and the same control of above-mentioned occlusion detection operation.The control device of above-mentioned occlusion detection operation also is applicable to the fan-type gas heater.
Also have, though the bathing pool device be the hot water heat cycles that makes in the bath A, replace bathtub A, also can be used to make the hot water heat cycles of radiating parts such as supplying with fan-type warm water heater or hot-water heating equipment.
Claims (6)
1. a burner comprises: the combustion chamber of accommodating burner; The air supply channel and the exhaust passage that are communicated with above-mentioned combustion chamber; The combustion air of said burner is supplied with the fan of above-mentioned combustion chamber through above-mentioned air supply channel; Survey the current detection device of the drive current of said fans; Survey the current detection device of the drive current of said fans; Survey the revolution sniffer of said fans revolution; Set the target revolution speed setting device of said fans target revolution; Rotate the fan control device of said fans with the target revolution of above-mentioned target revolution speed setting device setting; Above-mentioned target revolution is set at predetermined occlusion detection revolution, make the said fans running by the said fans control device, when the revolution detection goes out the occlusion detection revolution, carry out the occlusion detection device of the occlusion detection operation of surveying the inaccessible degree of above-mentioned air supply channel and exhaust passage based on the current value of above-mentioned current detection device detection; Wherein
Above-mentioned occlusion detection device comprises:
To each work of said fans,, carry out the timer storage device of accumulative total with the time of the burning of instrumentation said burner, the running timer institute instrumentation of said fans working time;
Reach the situation of the scheduled time in the cumulative time of above-mentioned timer memory device stores, carry out above-mentioned occlusion detection operation before this, with the air supply channel of surveying aflame burner cumulative time decision maker with exhaust passage obturation degree in the next-door neighbour.
2. burner according to claim 1, also comprise:, make the cumulative time of storing in the above-mentioned timer storage device return the resetting means of initial value in the instrumentation effluxion that stops timer of the instrumentation said burner fire extinguishing back said fans dwell time moment of predetermined resetting time.
3. burner according to claim 1, wherein above-mentioned timer storage device have that instrumentation time that stops timer with the said burner of instrumentation fire extinguishing back said fans dwell time deducts and the substracting unit stored from the cumulative time of storage.
4. burner according to claim 1 also comprises: by the heat exchanger of said burner heating;
Be connected above-mentioned heat exchanger and conduct by the warm water circulating line between the warm water receiving portion of the warm water supply object of above-mentioned heat exchanger heats;
Be located in the above-mentioned warm water circulating line in the above-mentioned heat exchanger upstream side passage, return the hot water temperature's of above-mentioned heat exchanger cooling-water temperature sensor with detection;
During the situation of the temperature of surveying at above-mentioned cooling-water temperature sensor more than predetermined temperature, carry out the reflux heat coolant-temperature gage decision maker of above-mentioned occlusion detection operation by above-mentioned occlusion detection device.
5. burner according to claim 2 also comprises: by the heat exchanger of said burner heating;
Be connected above-mentioned heat exchanger and conduct by the warm water circulating line between the warm water receiving portion of the warm water supply object of above-mentioned heat exchanger heats;
Be located in the above-mentioned warm water circulating line in the above-mentioned heat exchanger upstream side passage, return the hot water temperature's of above-mentioned heat exchanger cooling-water temperature sensor with detection;
During the situation of the temperature of surveying at above-mentioned cooling-water temperature sensor more than predetermined temperature, carry out the reflux heat coolant-temperature gage decision maker of above-mentioned occlusion detection operation by above-mentioned occlusion detection device.
6. burner according to claim 3 also comprises:
Heat exchanger by the said burner heating;
Be connected above-mentioned heat exchanger and conduct by the warm water circulating line between the warm water receiving portion of the warm water supply object of above-mentioned heat exchanger heats;
Be located in the above-mentioned warm water circulating line in the above-mentioned heat exchanger upstream side passage, return the hot water temperature's of above-mentioned heat exchanger cooling-water temperature sensor with detection;
During the situation of the temperature of surveying at above-mentioned cooling-water temperature sensor more than predetermined temperature, carry out the reflux heat coolant-temperature gage decision maker of above-mentioned occlusion detection operation by above-mentioned occlusion detection device.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004212976A JP4102339B2 (en) | 2004-07-21 | 2004-07-21 | Combustion device |
| JP2004212976 | 2004-07-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1724938A true CN1724938A (en) | 2006-01-25 |
| CN100538182C CN100538182C (en) | 2009-09-09 |
Family
ID=35896315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100859798A Expired - Fee Related CN100538182C (en) | 2004-07-21 | 2005-07-20 | Burner |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4102339B2 (en) |
| KR (1) | KR100600382B1 (en) |
| CN (1) | CN100538182C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105757998A (en) * | 2016-03-25 | 2016-07-13 | 芜湖美的厨卫电器制造有限公司 | Gas water heater and exhaust controlling method thereof |
| CN107850305A (en) * | 2015-07-17 | 2018-03-27 | 林内株式会社 | Burner |
| CN111998384A (en) * | 2020-08-27 | 2020-11-27 | 广州龙鑫蓄热工业炉有限公司 | Automatic timing adjusting method for heat accumulating type burner |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5414648B2 (en) * | 2010-10-12 | 2014-02-12 | リンナイ株式会社 | Combined combustion device |
| JP5508300B2 (en) * | 2011-01-18 | 2014-05-28 | リンナイ株式会社 | Combined combustion device |
| JP5819111B2 (en) * | 2011-06-21 | 2015-11-18 | リンナイ株式会社 | Combustion device |
| KR101301041B1 (en) * | 2012-02-10 | 2013-08-28 | 린나이코리아 주식회사 | Method for prohibiting continuous in gas combustion type device for water heating |
| JP6234251B2 (en) * | 2014-01-29 | 2017-11-22 | リンナイ株式会社 | Combustion device |
| CN113137757B (en) * | 2020-01-20 | 2022-09-02 | 芜湖美的厨卫电器制造有限公司 | Combustion device, water heater and control method of water heater |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0820074B2 (en) * | 1993-03-10 | 1996-03-04 | 三畿瓦斯器具株式会社 | Control method for safety device of indoor installed combustor |
| JP2002243145A (en) * | 2001-02-14 | 2002-08-28 | Tokyo Gas Co Ltd | Clogging preventing device for combustion equipment |
| JP2004045020A (en) * | 2002-05-17 | 2004-02-12 | Rinnai Corp | Combustion equipment |
| JP2004191003A (en) * | 2002-12-13 | 2004-07-08 | Matsushita Electric Ind Co Ltd | Fan-forced heater |
-
2004
- 2004-07-21 JP JP2004212976A patent/JP4102339B2/en not_active Expired - Lifetime
-
2005
- 2005-07-18 KR KR1020050064872A patent/KR100600382B1/en active IP Right Grant
- 2005-07-20 CN CNB2005100859798A patent/CN100538182C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107850305A (en) * | 2015-07-17 | 2018-03-27 | 林内株式会社 | Burner |
| CN105757998A (en) * | 2016-03-25 | 2016-07-13 | 芜湖美的厨卫电器制造有限公司 | Gas water heater and exhaust controlling method thereof |
| CN105757998B (en) * | 2016-03-25 | 2019-02-22 | 芜湖美的厨卫电器制造有限公司 | Gas heater and its method of controlling exhaust gas |
| CN111998384A (en) * | 2020-08-27 | 2020-11-27 | 广州龙鑫蓄热工业炉有限公司 | Automatic timing adjusting method for heat accumulating type burner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100538182C (en) | 2009-09-09 |
| JP4102339B2 (en) | 2008-06-18 |
| KR20060053857A (en) | 2006-05-22 |
| JP2006029740A (en) | 2006-02-02 |
| KR100600382B1 (en) | 2006-07-19 |
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