KR20120065509A - Combustion control method for preventing resonance noise range - Google Patents

Abstract

PURPOSE: A combustion control method for avoiding a resonant zone is provided to prevent the inconvenience of users caused by sympathetic sound. CONSTITUTION: A combustion control method for avoiding a resonant zone is as follows. The operation of a timer for delaying sympathetic sound is started(S1). If the initial amount of heat is more than the maximum calorific value of low combustion, high combustion is operated. If the initial amount of the heat is less than the maximum calorific value of the low combustion, the low combustion is operated. If the present heat amount of a burner is more than the maximum calorific value of the low combustion, middle combustion is operated. If the present heat amount is more than the maximum calorific value of the middle combustion in the middle of the middle combustion, whether or not resonant sound delay time determined by the timer for delaying sympathetic sound passes or not is determined. If the resonant sound delay time does not pass and the present heat amount is more or same with the maximum calorific value of the resonant sound, the high combustion is operated. If the present heat amount is not more or same with the maximum calorific value of the resonant sound, the middle combustion is maintained. If the sympathetic sound delay time passes and the present heat amount is more than the maximum calorific value of the middle combustion, the high combustion is operated. If the present heat amount is not more than the maximum calorific value of the middle combustion, the middle combustion is maintained(S16).

Description

Combustion control method for preventing resonance noise range

The present invention relates to a combustion control method for avoiding resonance sound region, and more particularly, in a combustion apparatus including a boiler having small combustion, medium combustion, and large combustion functions through proper switching of the small burner and the heavy burner. In order to avoid the resonance sound in the invented to solve the user inconvenience caused by the resonance sound by avoiding moving to the resonance sound generation period for the time to supply the amount of heat so that the resonance sound does not occur.

Generally, a boiler is used to heat water by using combustion heat and heat generated by burning it using fuel, coal or gas as fuel, or supplying electricity to a heater, and supplying hot water to various heating facilities In the case of a domestic boiler, hot water is supplied to the piping installed on the floor of the room or the like, and is used for supplying hot water through a water pipe or the like.

The combustion of such a boiler is generally three types of small combustion, medium combustion, and large combustion, and as shown in FIG. 1, two small and medium burners 102 ignited by the igniter 101 are used.

In small combustion, the first electronic valve 103 for combustion switching is opened to burn the right three craters, and in the case of medium combustion, the second electronic valve 104 is opened to burn the left five craters. Both 1 and 2 electron valves 103 and 104 are opened to perform combustion operation in all eight craters.

The transfer of the small burner to the medium burner or the medium burner to the large burner during the transfer combustion operation of the soburner and the heavy burner by the transfer between the first and second electron sides for the combustion transfer is shown in FIG. 2. When the calories are raised to the maximum amount of heat (A) in the small burn calorie section or the current calorie of the burner is raised to the maximum amount of heat (B) in the medium burn calorie section.

However, in the case of such a transfer burner, there is a very difficult part in determining the combustion specification to avoid the resonance sound and to set the combustion specification. Of course, it is necessary to determine the specification so that resonance sound does not occur when determining the combustion specification, but sometimes a resonance sound may be generated in a certain section, and a technique for avoiding it is necessary.

Nevertheless, conventionally, when switching soburner and heavy burner according to the amount of heat, especially when large combustion is needed from the beginning of combustion, starting from the large combustion minimum calorie (D) part and gradually increasing the heat value for a certain period of time. Resonance sound is generated in a certain section and it is pointed out as a lot of inconvenience by consumers.

The present invention has been made in order to solve such a conventional problem, a large combustion initial schedule in a combustion apparatus including a boiler having a small combustion, medium combustion, large combustion function through the appropriate switching of the small burner and heavy burner. In order to avoid the resonance sound in the section, in order to avoid the resonance, the sound that does not generate the resonance sound is supplied so that it does not move to the resonance sound generation section for a certain time, thereby eliminating user inconvenience caused by the resonance sound. In addition, the purpose of the present invention is to provide a combustion control method for avoiding resonance sound region that can greatly improve the reliability and customer satisfaction of the product.

The present invention for solving the above problems, the power supply for supplying a power supply voltage for the operation of the boiler; A remote controller for allowing a user to remotely generate a key signal for driving the boiler; A calorie detector for detecting calorie supplied from a burner; The predetermined resonance includes a resonance sound delay timer for counting a delay time; A data storage unit for storing various data necessary for heating and hot water control; A control unit performing an overall control function of the boiler; A combustion control method of a boiler having a functional part driving unit for driving a functional part such as a three-way valve, a circulating pump, an igniter, first and second electromagnetic valves, and a blower fan in response to an output signal of the controller, the initial heating or hot water Calculating an initial heat amount according to a set temperature and starting to operate a resonant sound delay timer having a predetermined time if there is a heat supply request according to the operation; Determining whether the initial calorific value calculated above is equal to or less than a predetermined small combustion maximum calorific value; As a result of the above determination, if the amount of heat initially calculated is larger than the maximum amount of small combustion, the first and second electron valves are opened to perform large combustion. If the amount of heat calculated initially is less than the maximum amount of small combustion, only the first electronic valve is opened and the small combustion is performed. Performing a step; Performing small combustion if the current heat amount of the burner is greater than the maximum calorific value of the burner while the small combustion is in progress as described above; Performing calorie control in heavy combustion; Determining whether the current heat amount of the burner is greater than the maximum amount of heavy combustion and returning to the previous step if it is not large; Judging whether the resonant sound delay time set by the resonant sound delay timer has elapsed if the current heat amount in the heavy combustion is greater than the maximum heat value in the heavy combustion; As a result of the above determination, if the resonant sound delay time has not elapsed, it is determined whether the current heat quantity is greater than or equal to the maximum resonant sound value. Sustaining the cattle; If the resonant sound delay time has passed as a result of judging as determined above, if the current calorie value is greater than the maximum amount of medium-burning heat, if it is large, open both the first and the second electronic valve to perform a large combustion, if not large; continuing the heavy combustion; Characterized in that.

In addition, if the large combustion is performed in the above step of performing a corresponding calorie control; Judging whether the current burner heat of the burner is smaller than the maximum resonant sound, and if not, returning to the previous step; Judging whether the resonant sound delay time set by the resonant sound delay timer has elapsed if the current heat amount in the large combustion is smaller than the maximum resonant sound value as the result of the determination; Judging whether the resonant sound delay time has not elapsed, and determining whether the current heat quantity is less than the large combustion minimum calorie value, and if it is small, returning to the step of performing heavy combustion by opening only the second electronic valve; Determining that the current amount of heat is not less than the minimum amount of large combustion and maintaining the large amount of heat by resonating the maximum amount of resonance sound; As a result of the above determination, if the resonant sound delay time has elapsed, it is determined whether the current amount of heat is smaller than the minimum amount of large combustion, and if it is small, the method returns to the step of performing medium combustion only by opening the second electronic valve; It is characterized by including.

In this case, the resonant sound delay time in heavy combustion and the resonant sound delay time in large combustion are set equal to each other, or the resonant sound delay time in heavy combustion is set longer than the resonant sound delay time in large combustion. It features.

As described above, according to the combustion control method for avoiding the resonance sound region of the present invention, a combustion apparatus including a boiler having small combustion, medium combustion, and large combustion functions through proper switching between the small burner and the heavy burner is provided. If there is a risk of resonance sound in the initial section of the combustion, in order to avoid it, heat is supplied so that the resonance sound does not occur, and it does not move to the resonance sound generation section for a certain period of time, causing inconvenience to users due to the resonance sound. It is a very useful invention that can not only solve the problem but also greatly improve the reliability and customer satisfaction of the product.

1 is an internal configuration diagram of a typical boiler.
2 is a combustion calorie control curve of a conventional boiler.
Figure 3 is a block diagram of a boiler control circuit to which the present invention method is applied.
4 is a flowchart for explaining the method of the present invention.
5 is a combustion calorie control curve for preventing resonance sound from being generated in a boiler using the method of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 shows a block diagram of a boiler control circuit to which the present invention method is applied, FIG. 4 shows a flowchart for explaining the present invention method, and FIG. 5 shows a resonance sound in a boiler using the present invention method. The burn calorie control curve is shown to prevent the burn.

According to the present invention,

A power supply unit 1 for supplying a power voltage necessary for the operation of the boiler; A remote controller 2 for allowing a user to remotely generate key signals necessary for driving the boiler; A calorific value detector (3) for detecting calorie supplied from the burner; The predetermined resonance includes: a resonance sound delay timer 7 for counting the delay time; A data storage section 4 for storing various data necessary for heating and hot water control; A control unit 5 for performing an overall control function of the boiler; Function to drive functional parts such as three-way side 62, circulation pump 64, igniter 66, first and second electromagnetic sides 68a and 68b and blower fan 70 in response to the output signal of the controller. In the combustion control method of the boiler provided with the component drive unit 6,

Calculating an initial heat amount according to a user's set temperature if there is a heat supply request according to initial heating or hot water operation, and starting to operate a resonance sound delay timer 7 having a predetermined time (S1);

Determining whether the initial calorific value calculated above is equal to or less than a predetermined small combustion maximum calorific value (S2);

As a result of the above determination, if the amount of heat initially calculated is greater than the maximum amount of small combustion, the first and second electromagnetic valves 68a and 68b are opened to perform large combustion (S11), and the amount of heat calculated initially is the maximum amount of small combustion. If it is less than the first step (S3) to perform small combustion by opening only the first electron valve (68a);

As described above, during the small combustion process, if the current heat amount of the burner is greater than the maximum calorific value of the small combustion, the step S4 is performed.

Performing calorie control in heavy combustion (S6);

Determining whether the current heat amount of the burner is greater than the maximum amount of heavy combustion (S7) and returning to the previous step (S6) if it is not large;

Judging whether the resonant sound delay time determined by the resonant sound delay timer 7 has elapsed if the current heat amount in the heavy combustion is greater than the maximum heat value in the heavy combustion (S8);

As a result of the above determination, if the resonance sound delay time has not elapsed, it is determined (S9) whether the current heat quantity is greater than or equal to the maximum amount of resonance sound, and if it is greater than or equal to, the first and second electronic valves 68a and 68b are opened to a large combustion state. (S11), and if it is small, continuing the heavy combustion (S5);

As a result of the above determination, if the resonant sound delay time has elapsed, it is determined whether the current amount of heat is greater than the maximum amount of medium combustion (S10), and when the size is large, the first and second electromagnetic sides 68a and 68b are opened to perform large combustion (S11). If it is less than that, continuing the heavy combustion (S5); characterized in that it comprises a.

In addition, when the large combustion is carried out in the above (S11) and performing the corresponding calorie control (S12);

Determining whether the current heat amount of the burner is smaller than the maximum amount of resonance sound (S13), and returning to the previous step S12 if it is higher (that is, not smaller);

Judging whether the resonant sound delay time determined by the resonant sound delay timer 7 has elapsed if the current heat amount in the large combustion is less than the maximum resonant sound value as the result of the determination above;

As a result of the above determination, if the resonant sound delay time has not elapsed, it is determined whether the current calorie value is less than the large combustion minimum calorie value (S15), and if it is small, only the second electronic valve 68b is opened to return to step S5. Steps;

Determining that the current heat quantity is not less than the large combustion minimum calorie value and controlling the heat quantity to the maximum amount of resonance sound (S17) and continuing the large combustion rate (S11);

As a result of the above determination, if the resonant sound delay time has elapsed, it is determined whether the current calorie value is smaller than the large combustion minimum calorie value (S16). If not more than that, continuing the large combustion (S11); characterized in that it further comprises.

In this case, the resonant sound delay time in the heavy combustion and the resonant sound delay time in the large combustion may be set to be the same through one resonant sound delay timer (7), but if necessary, the amount of combustion heat It is characterized in that the resonance sound delay time in relatively small combustion may be set longer than the resonance sound delay time in large combustion.

Meanwhile, although not shown, the boiler to which the present invention is applied further includes an indoor temperature detector, a hot water temperature detector, and a heating temperature detector.

Reference numeral 61 is a three-way drive, 63 is a circulating pump drive, 65 is an igniter drive, 67a, 67b is the first and second electromagnetic valve drive, 69 is a blower fan drive.

Referring to the effect of the present invention comprising such a step as follows.

First, if there is a heat supply request according to the initial heating or hot water operation, the controller 5 in the boiler calculates the amount of heat to be supplied from the initial burner according to the user's set temperature, as well as a resonant sound delay timer 7 having a predetermined time. After starting to operate (S1), it is determined whether the initial calorific value calculated above is less than a predetermined small combustion maximum calorific value (S2).

As a result of the determination, if the amount of heat initially calculated is greater than the maximum amount of small combustion, the first and second electromagnetic valves 68a and 68b are opened to perform large combustion through the small burner and the heavy burner (S11), and the initial calculation is performed. If the amount of heat generated is less than or equal to the maximum amount of small combustion, only the first electron valve 68a is opened to perform small combustion (S3).

Subsequently, while the small combustion proceeds as described above, the control unit 5 detects the current heat amount of the burner and determines whether the current heat amount is larger than the maximum heat amount of the small combustion (S4). If it is larger than the maximum heat amount, only the second electron valve 68b is opened to perform medium combustion (S5), and if it is not large, small combustion is continued.

Subsequently, the control unit 5 performs a predetermined calorie control in heavy combustion (S6) and determines whether the current calorific value of the burner is greater than the maximum amount in heavy combustion (S7). The process returns to S6.

However, as a result of the above determination, if the current amount of heat in heavy combustion is greater than the maximum amount of heat in heavy combustion, it is determined whether the resonance sound delay time determined by the resonance sound delay timer 7 has elapsed (S8).

As a result of the determination, if the resonant sound delay time has not elapsed, it is determined whether the current calorie value is greater than or equal to (ie, more than) the maximum calorific sound value (S9). Large combustion S11 is performed by opening all of the second electron valves 68a and 68b, and if it is small, heavy combustion S5 is continued.

However, as a result of the above determination, if the resonant sound delay time has elapsed, it is determined whether the current calorie value is the maximum calorie value in heavy combustion (S10). In the case of carrying out (S11), but less than that, the medium combustion (S5) is continued.

On the other hand, as a result of the above determination, when the calories initially calculated are larger than the maximum calorific value of small combustion, or when the current calorie value is more than the maximum calorific value of the resonant sound during the resonant sound delay time during heavy combustion, or the resonant sound delay time As a result of judging in the elapsed state, when the current heat amount is determined to be greater than or equal to the maximum heat value in heavy combustion and large combustion is performed (S11), the control unit 5 controls the gas supply amount supplied to the burner in response to the heat amount determined in the large combustion. It will be carried out (S12).

In this way, while the calorie control according to the large combustion is being performed, the controller 5 determines whether the current calorie value in the large combustion is smaller than the maximum amount of resonance sound (S13), and if so, returns to the previous step S12. If the current amount of heat in the large combustion is smaller than the maximum amount of resonance sound, it is determined whether the resonance sound delay time set by the resonance sound delay timer 7 has elapsed (S14).

As a result of the determination, if the resonant sound delay time has not elapsed, it is determined whether the current heat amount in the large combustion is smaller than the minimum heat value of the large combustion (S15). If the size is small, the resonance sound shown by the dark line in the large combustion section of FIG. Recognizing that it is out of the generation section and returns to step S5 of performing heavy combustion by opening only the second electronic valve 68b, if it is more than that, it is recognized as a resonance sound generation section shown as a dark line in the large combustion section of FIG. The amount of heat is controlled to the maximum amount of resonance sound (S17) and the large combustion (S11) is continued.

In addition, if the resonant sound delay time has passed as a result of the above determination, it is determined whether the current amount of heat is smaller than the minimum amount of large combustion (S16). If it is more than that, as described above, it is recognized that the current calorie is out of the resonance sound generation period and continues the large combustion (S11).

Therefore, since the user does not move to the resonance sound generation section for a certain time, the user inconvenience caused by the resonance sound can be solved, and the reliability of the product and the customer's satisfaction can be greatly improved.

On the other hand, in the above, the resonant sound delay time in heavy combustion and the resonant sound delay time in large combustion may be set equal to each other by using a single resonant sound delay timer 7 having a predetermined operating time. Can also be set differently from each other using the two resonance sound delay timers (7), in which case the resonant sound delay time in heavy combustion is lower than the resonant sound delay time in large combustion. It is desirable to set longer.

It should be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

1: power supply 2: remote control
3: calorie detection unit 4: data storage unit
5: control unit 6: functional part driving unit
7: resonant delay timer
62: three-way side 64: circulation pump
66: igniter 68a, 68b: first and second electromagnetic sides
70: blowing fan

Claims (3)

In the combustion control method of the boiler,
Calculating an initial heat amount according to a set temperature and starting to operate a resonance sound delay timer having a predetermined time, when there is a heat supply request according to initial heating or hot water operation;
Determining whether the initial calorific value calculated above is equal to or less than a predetermined small combustion maximum calorific value;
Performing large combustion when the amount of heat calculated initially is greater than the maximum amount of small combustion, and performing small combustion if the amount of heat initially calculated is less than or equal to the maximum amount of small combustion;
Performing small combustion if the current heat amount of the burner is greater than the maximum calorific value of the burner while the small combustion is in progress as described above;
Performing calorie control in heavy combustion;
Determining whether the current heat amount of the burner is greater than the maximum amount of heavy combustion and returning to the previous step if it is not large;
Judging whether the resonant sound delay time set by the resonant sound delay timer has elapsed if the current heat amount in the heavy combustion is greater than the maximum heat value in the heavy combustion;
If the resonance sound delay time has not passed as a result of the determination as described above, determining whether the current heat quantity is greater than or equal to the maximum heat capacity of the resonance sound and performing large combustion if it is greater than or equal to, and if not greater than or equal to continuing heavy combustion;
If the resonant sound delay time has passed as a result of the determination as described above, judging whether the current heat amount is greater than the maximum amount of heavy combustion, and performing a large combustion if it is large, if not large; continuing the resonant sound region characterized in that it comprises a; Combustion control method for
The method according to claim 1,
Performing calorie control corresponding to large combustion when the combustion is performed;
Judging whether the current burner heat of the burner is smaller than the maximum resonant sound, and if not, returning to the previous step;
Judging whether the resonant sound delay time set by the resonant sound delay timer has elapsed if the current heat amount in the large combustion is smaller than the maximum resonant sound value as the result of the determination;
If the resonance sound delay time has not passed as a result of the above determination, determining whether the current heat quantity is smaller than the large combustion minimum calorie value, and if it is small, returning to the step of performing heavy combustion;
Determining that the current amount of heat is not less than the minimum amount of large combustion and maintaining the large amount of heat by resonating the maximum amount of resonance sound;
If the resonant sound delay time has passed as a result of the determination as determined above, if the current calorie is less than the minimum calorific value of the large combustion, if it is small, returning to the step of performing heavy combustion, if not small; continuing the large combustion; Combustion control method for avoiding resonance sound region.
The method according to any one of claims 1 to 3,
The resonant sound delay time in the heavy combustion and the resonant sound delay time in the large combustion are set equal to each other, or the resonant sound delay time in the medium combustion is set longer than the resonant sound delay time in the large combustion. Combustion control method for avoiding resonance sound region, characterized in that.

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