JPH0875143A - Method and apparatus for controlling combustion - Google Patents

Abstract

PURPOSE: To constantly realize an optimum combustion amount control in a combustion control of an oil burning fan heater having three or more combustion modes by controlling the amount of fuel in a combustion mode according to the adjusting amount of each fuel feed frequency at the minimum and maximum combustion amount modes. CONSTITUTION: In a combustion mode of the maximum combustion amount and a combustion mode of the minimum combustion amount in the three or more combustion modes, a standard fuel feed frequency corresponding to a standard fuel feed amount of a fuel feed pump 12 is finely adjusted by a microcomputer 1 to obtain a fuel feed frequency adjusting amounts. A fuel feed frequency adjusting amount ΔPUMP(x) of another combustion mode (x) is obtained by the formula of PUMP(x)=(α/Y)×X+(β/Y)×Z. An actual fuel feed frequency PUPMA(x) is obtained by using the formula PUMPA(x)=PUPM (x)+ΔPUPM(x) to adjust the combustion amount of a combustion apparatus.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a combustion adjusting method and a combustion adjusting device, and more particularly to a combustion adjusting method and a combustion adjusting device for an oil fan heater having three or more combustion modes.

[0002]

2. Description of the Related Art Conventionally, at the time of shipping an oil fan heater or at the time of service inspection, the combustion amount of the burner is adjusted so that more suitable combustion is performed from the minimum combustion amount to the maximum combustion amount of the oil fan heater. ing.

More specifically, first, the standard air flow rate of the combustion blower and the standard fuel supply rate of the fuel supply pump at the minimum combustion amount and the maximum combustion amount are preset.

Next, the minimum combustion is actually performed, and the standard fuel supply frequency corresponding to the standard fuel supply amount of the fuel supply pump at the time of the minimum combustion is finely adjusted so that the optimum combustion is performed. The supply frequency adjustment amount α '[Hz] is calculated.

Further, maximum combustion is actually performed, and the standard fuel supply frequency corresponding to the standard fuel supply amount of the fuel supply pump at the time of maximum combustion is finely adjusted so that optimum combustion is performed. The adjustment amount β '[Hz] is calculated.

When determining the fuel supply frequency adjustment amount γ corresponding to the actual combustion amount, linear interpolation of the fuel supply frequency adjustment amount α'at the minimum combustion and the fuel supply frequency adjustment amount β'at the maximum combustion is performed. The combustion adjustment was carried out by seeking.

[0007]

According to the above-mentioned conventional combustion adjustment method, optimal combustion is performed at the time of minimum combustion and maximum combustion, but in the case of an intermediate combustion amount,
Compared to the optimum fuel supply frequency adjustment amount, the obtained fuel supply frequency adjustment amount γ will be too large or too small, and the amount of air blown will be insufficient for the fuel supply amount, resulting in an oxygen shortage condition. As a result, there is a problem that the flame becomes unstable and combustion becomes unstable due to a red fire or an excessive amount of air blown with respect to the amount of fuel supplied.

Therefore, an object of the present invention is to provide a combustion adjusting method and a combustion adjusting device which can perform optimum combustion from the minimum combustion time to the maximum combustion time and which has a simple structure.

[0009]

In order to solve the above-mentioned problems, the invention according to claim 1 provides n pieces (n = an integer of 3 or more).
And a combustion adjusting method for adjusting the combustion amount of a combustion device in which the standard air flow rate of the combustion blower and the standard fuel supply rate of the fuel supply pump are set in advance for each combustion mode. In the first mode, the fuel supply frequency adjustment amount α [Hz] is obtained by finely adjusting the standard fuel supply frequency corresponding to the standard fuel supply amount of the fuel supply pump for the combustion mode with the smallest combustion amount. Step, and finely adjusting the standard fuel supply frequency corresponding to the standard fuel supply amount of the fuel supply pump for the combustion mode with the largest combustion amount among the combustion modes to obtain the fuel supply frequency adjustment amount β [Hz] 2 steps, and the other combustion modes x (x = 2 or more (n-
1) PUM for standard fuel supply frequency
P (x) [Hz], the fuel supply frequency adjustment amount in the combustion mode x is ΔPUMP (x) [Hz], and the standard air flow rate in the combustion mode x is BM (x). Standard air flow rate in mode B
M (1), the standard air flow rate in the combustion mode with the largest amount of combustion is BM (n), X = BM (n) -BM (x), and Y = BM (n) -BM (1). , Z = BM (x) -BM (1), the third step of obtaining the fuel supply frequency adjustment amount ΔPUMP (x) [Hz] in the combustion mode x by the equation (1), and ΔPUMP (x) = (Α / Y) × X + (β / Y) × Z (1) Actual fuel supply frequency PUM in the combustion mode x
PA (x) [Hz] is obtained from the equation (2), and a fourth step of adjusting the combustion amount of the combustion device and PUMPA (x) = PUMP (x) + ΔPUMP (x) (2) are provided. .

According to a second aspect of the present invention, in addition to the configuration of the first aspect of the invention, when the combustion amount is set to an intermediate value of the combustion amounts of any two combustion modes, the two combustion modes are set. A fifth step of obtaining the corresponding fuel supply frequency by performing linear interpolation of the fuel supply frequency corresponding to the mode is configured.

According to a third aspect of the present invention, the standard blow rate of the combustion blower and the standard fuel supply rate of the fuel supply pump are stored for each of n (n = 3 or more integer) combustion modes having different combustion amounts. And a fuel supply frequency adjustment amount obtained by finely adjusting the standard fuel supply frequency corresponding to the standard fuel supply amount of the fuel supply pump for the combustion mode with the smallest combustion amount among the combustion modes. α [Hz] and a fuel supply frequency adjustment amount β [obtained by finely adjusting the standard fuel supply frequency corresponding to the standard fuel supply amount of the fuel supply pump for the combustion mode with the largest combustion amount among the combustion modes. Hz], other combustion modes x (x = 2) excluding the combustion mode with the smallest combustion amount and the combustion mode with the largest combustion amount.
The standard fuel supply frequency in the above (n-1) or less) is PUMP (x) [Hz], the fuel supply frequency adjustment amount in the combustion mode x is ΔPUMP (x) [Hz], and the standard in the combustion mode x is BM (x)
Where BM (1) is the standard air flow rate in the combustion mode with the least amount of combustion, BM (n) is the standard air flow rate in the combustion mode with the most amount of combustion, and X = BM (n) -BM (x ) And Y = BM (n) -BM (1) and Z = BM (x) -BM (1), the fuel supply frequency adjustment amount ΔPUMP (x) [Hz] in the combustion mode x is Calculation means obtained by the equation (1) and ΔPUMP (x) = (α / Y) × X + (β / Y) × Z (1) Actual fuel supply frequency PUM in the combustion mode x
PA (x) [Hz] is the fuel supply frequency adjustment amount ΔPU
Based on MP (x), it is comprised by the adjustment means which calculates | requires by (2) Formula and adjusts the combustion amount of a combustion apparatus, and PUMPA (x) = PUMP (x) + (DELTA) PUMP (x) ... (2).

According to a fourth aspect of the present invention, in addition to the configuration of the third aspect of the invention, there is provided a setting means for setting a combustion amount and an intermediate combustion amount between two combustion modes in which the combustion amount is set by the setting means. When the value is set to, the fuel corresponding to the set combustion amount instead of the fuel supply frequency adjustment amount ΔPUMP (x) is obtained by performing linear interpolation of the fuel supply frequency corresponding to the two combustion modes. And an interpolating means for obtaining the supply frequency.

[0013]

According to the first aspect of the invention, the first step is n
For the combustion mode with the smallest combustion amount among the individual combustion modes, the fuel supply frequency adjustment amount α is obtained by finely adjusting the standard fuel supply frequency corresponding to the standard fuel supply amount of the fuel supply pump.
Calculate [Hz].

In the second step, the fuel supply frequency is adjusted by finely adjusting the standard fuel supply frequency corresponding to the standard fuel supply amount of the fuel supply pump for the combustion mode with the largest combustion amount among the n combustion modes. The adjustment amount β [Hz] is calculated.

Thus, in the third step, the fuel supply frequency adjustment amount ΔPUMP (x) [Hz] in the combustion mode x.
Based on the calculation result of the third step, the fourth step obtains the actual fuel supply frequency PUMPA (x) [Hz] in the combustion mode x from the equation (2), and the fourth step Adjust the amount of combustion.

Therefore, the optimum fuel supply frequency PUMPA (x) can be obtained in each combustion mode x, and the optimum combustion amount adjustment can be easily performed.

According to the invention of claim 2, in addition to the operation of the invention of claim 1, when the combustion amount is set to an intermediate value between the combustion amounts of any two combustion modes,
Since the fuel supply frequency corresponding to one combustion mode is linearly interpolated to obtain the corresponding fuel supply frequency, the combustion amount can be optimally adjusted from the minimum combustion amount to the maximum combustion amount.

According to the third aspect of the invention, the first storage means stores the standard blow rate of the combustion blower and the standard fuel supply rate of the fuel supply pump for each of n combustion modes having different combustion amounts. To do.

The computing means stores the standard air flow rate and the standard fuel supply rate stored in the first storage means and the standard fuel corresponding to the standard fuel supply rate of the fuel supply pump for the combustion mode with the smallest combustion rate among the combustion modes. Fuel supply frequency adjustment amount α obtained by finely adjusting the supply frequency
[Hz] and the fuel supply frequency adjustment amount β [Hz obtained by finely adjusting the standard fuel supply frequency corresponding to the standard fuel supply amount of the fuel supply pump for the combustion mode with the largest combustion amount among the combustion modes. ], The fuel supply frequency adjustment amount ΔPUMP (x) [Hz] in the combustion mode x is calculated by the equation (1).

This fuel supply frequency adjustment amount ΔPUMP
Based on (x), the adjusting means determines the actual fuel supply frequency PUMPA (x) [Hz] in combustion mode x from (2)
Calculated by the formula, and adjust the combustion amount of the combustion device.

Therefore, the optimum fuel supply frequency PUMPA (x) can be obtained in each combustion mode x, and the optimum combustion amount adjustment can be easily performed.

According to the invention of claim 4, in addition to the operation of the invention of claim 3, the setting means sets the combustion amount.

When the combustion amount is set to an intermediate value between the combustion amounts of any two combustion modes by the setting device, the interpolating means performs linear interpolation of the fuel supply frequency corresponding to the two combustion modes. Thus, the fuel supply frequency corresponding to the set combustion amount in place of the fuel supply frequency adjustment amount ΔPUMP (x) is obtained.

Therefore, the combustion amount can be optimally adjusted from the minimum combustion amount to the maximum combustion amount.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will now be described with reference to the drawings.

FIG. 1 shows a schematic block diagram of the essential parts of the control system of the oil fan heater.

The oil fan heater control system 100 controls the entire oil fan heater and also functions as a microcomputer 1 and a fine adjustment switch 2 for setting whether or not to finely adjust the combustion amount. , A fine adjustment positive side switch 3 for increasing the pump frequency which is the fuel supply frequency in units of 0.1 [Hz], and a fine adjustment positive side switch 3 for decreasing the pump frequency which is the fuel supply frequency in units of 0.1 [Hz]. The adjustment negative side switch 4, the operation switch 5 for instructing the operation / stop of the oil fan heater, and the first storage means and the second storage means, which function as the first storage means and the second storage means, in advance, for each combustion mode having three or more different combustion amounts The standard blow rate of the combustion blower and the standard fuel feed rate (= standard pump frequency) of the fuel feed pump are stored, and the fuel feed frequency in each combustion mode is stored. Adjustment amount (= pump frequency adjustment amount) delta
PUMP [Hz] and actual fuel supply frequency PUMPA
A rewritable storage device 6 such as a non-volatile RAM or an EEPROM for storing the above, a pump fine adjustment calculation unit 7 functioning as a calculation unit and an interpolation unit, and a combustion amount automatically based on the set room temperature and the actual room temperature. An automatic mode selection switch 8 for selecting an automatic operation mode to be adjusted, a fixed mode selection switch 9 for selecting a fixed mode for adjusting the combustion amount in correspondence with three or more preset combustion modes, and an actual Room temperature sensor 10 for measuring room temperature
A combustion blower 11 for blowing combustion air under the control of the microcomputer 1, an electromagnetic pump 12 for actually controlling the fuel supply amount under the control of the microcomputer 1, a room temperature, an operation mode, etc. And a display unit 13 for displaying various kinds of information.

Next, the operation at the time of combustion adjustment will be described with reference to FIGS.

Prior to the description of the specific operation, a specific example of the standard air flow rate and the standard fuel supply rate stored in the storage device 6 will be described. In this case, for simplification of description, the number of combustion modes in the fixed mode is n = 6.

What is actually stored in the storage device 6 as the standard air flow rate and the standard fuel supply rate is the combustion mode (weak,
The standard rotation speed of the combustion blower and the drive frequency of the electromagnetic pump 12 for each of (weak, weak medium, medium, strong medium, strong).

Standard air flow rate BM (i) [rpm] (i = 1
6) and standard fuel supply frequency PUM of the electromagnetic pump 12
As P (i) [Hz], for example, a value as shown in FIG. 2 is stored.

More specifically, in the weak combustion mode (corresponding to the combustion mode with the smallest combustion amount = 1), the standard air flow rate BM (1) = 750 [rpm] standard fuel supply frequency PUMP (1) = 7 1 [Hz], and in the medium combustion mode (corresponding to combustion mode = 4), the standard air flow rate BM (4) = 1710 [rpm] and the standard fuel supply frequency PUMP (4) = 22.8 [Hz]. Yes, strong combustion mode (combustion mode with the largest amount of combustion =
6 (= corresponding to n)), the standard air flow rate BM (6) = 2350 [rpm] and the standard fuel supply frequency PUMP (6) = 31.6 [Hz].

Next, the operation will be described with reference to the processing flowchart of FIG.

When the power is turned on (at the start), the actual fuel supply frequency for each mode is calculated based on the data in the storage device 6. For example, in the state where the combustion adjustment is not performed as before shipment, the actual fuel supply frequency PUMP (X) in each mode is equal to the standard fuel supply frequency, and the following combustion adjustment is performed at the time of shipping or service. Then, the data in the storage device 6 is rewritten, and a new actual fuel supply frequency is calculated. (Step S0).

First, when the operation switch 5 and the mode selection switches 8 and 9 are key-input and the corresponding display output to the display unit 13 is performed (step S1), the microcomputer 1 determines whether or not combustion is in progress. (Step S2).

If it is determined in step S2 that combustion is not in progress, the process proceeds to step S8, and if it is determined that combustion is in progress, the microcomputer 1 has pressed the fine adjustment switch 2. It is determined whether or not it is in the pump fine adjustment mode (step S
3). That is, in order to enter the pump fine adjustment mode, it suffices to perform combustion in advance and press the fine adjustment switch 2 in this state. When it is determined that the pump fine adjustment mode is not set in the determination in step S3, the process is performed in step S7.
If it is determined that the mode is the pump fine adjustment mode, it is determined whether the pump fine adjustment key, that is, the fine adjustment positive side switch 3 or the fine adjustment negative side switch 4 is pressed (step S4). .

If it is determined in step S4 that the pump fine adjustment key has not been pressed, the process proceeds to step S7.
If the pump fine adjustment key is pressed,
Maximum fuel supply frequency (combustion mode with maximum combustion amount = 6
= Standard fuel supply frequency PUMP (6) or minimum fuel supply frequency (combustion mode with the least amount of combustion =
(Corresponding to 1) = fine adjustment of the standard fuel supply frequency PUMP (1) (step S5).

When the fine adjustment switch 2 (not shown) is turned off and it is confirmed that the fine adjustment has been completed, the pump fine adjustment calculation unit 7
Calculates the optimum fuel supply frequency PUMPA (x) in each combustion mode = x (x = 2 to 5) (step S
6).

More specifically, based on the fuel supply frequency adjustment amount α [Hz] obtained for the combustion mode = 1 and the fuel supply frequency adjustment amount β [Hz] obtained for the combustion mode = 6 in the process of step S5. Then, X = BM (6) -BM (x), Y = BM (6) -BM (1), Z = BM (x) -BM (1), and the fuel supply frequency in each combustion mode = x The adjustment amount ΔPUMP (x) [Hz] is calculated by the equation (1).

ΔPUMP (x) = (α / Y) × X + (β / Y) × Z (1) Further, the actual fuel supply frequency PUMPA (x) [Hz] in each combustion mode = x is adjusted to the fuel supply frequency. Amount ΔP
It is calculated by the equation (2) based on UMP (x) and stored in the storage device 6.

PUMPA (x) = PUMP (x) + ΔPUMP (x) (2) Subsequently, in the microcomputer 1, each combustion mode = x calculated by the pump fine adjustment calculation unit 7 and stored in the storage device 6.
Actual fuel supply frequency at PUMPA (x) [H
z] will be used to perform combustion control (step S
7).

More specifically, the fuel supply frequency adjustment amount α
= + 1.0 [Hz], fuel supply frequency adjustment amount β = + 0.
Explaining the case of 5 [Hz], each combustion mode =
Actual fuel supply frequency PUM at x (x = 2 to 5)
PA (x) is 13.9 each, as shown in FIG.
([Hz]; x = 2), 16.7 ([Hz]; x
= 3), 23.5 ([Hz]; x = 4),
26.3 ([Hz]; in the case of x = 5), these values are connected by a straight line, and the graph is displayed side by side with the standard fuel supply frequency PUMP.

Next, the microcomputer 1 determines whether or not the operation switch 5 is pressed (step S
8) If the operation switch 5 is not pressed (OFF), the process proceeds to step S1 and the same process as the above process is repeated.

If it is determined in step S8 that the operation switch is pressed (ON), it is determined whether combustion is in progress (step S9).

If it is determined in step S9 that combustion is in progress, the combustion is stopped (turned off) (step S10),
The process proceeds to step S1 and the same process as the above-described process is repeated.

If it is determined in step S9 that combustion is not in progress, combustion is started (turned on), the process proceeds to step S1, and the same process as the above-described process is repeated.

The above description is for the fixed mode selection switch 9
Although the combustion control was performed when each combustion mode was selected by, when the automatic mode is selected by the automatic mode selection switch 8, the calculated or set fuel supply frequency PUMPA (i) [Hz] (i = 1 to 6), the pump fine adjustment calculation unit 7 functions as an interpolating means, and uses any two fuel supply frequencies PUMPA to calculate a corresponding fuel supply frequency, and the calculated fuel supply frequency is calculated. Based on the above, the microcomputer 1 controls combustion.

More specifically, assuming that the room temperature Tset set for the automatic mode is the actual room temperature Treal detected by the room temperature sensor 10, the pump fine adjustment calculation unit 7 determines that the room temperature difference ΔT = Tset-Treal. The corresponding standard air flow rate is calculated, and the corresponding fuel supply frequency is calculated by the same calculation process as the graph of FIG. For example, the standard air flow rate corresponding to the room temperature difference ΔT is 1500 [rp
m], the fuel supply frequency PUMPA (3) corresponding to the combustion mode = 3 (weak medium) and the combustion mode =
The fuel supply frequency = 19.0 [Hz] is calculated based on the fuel supply frequency PUMPA (4) corresponding to 4 (medium),
The microcomputer 1 uses this fuel supply frequency = 19.
By using 0 [Hz], the electromagnetic pump 12 is controlled to perform optimal combustion control according to the room temperature difference ΔT.

As described above, according to this embodiment, the combustion amount can be optimally adjusted from the minimum combustion amount to the maximum combustion amount.

[0050]

According to the invention described in claim 1, the optimum fuel supply frequency PUMPA (x) in each combustion mode x
Can be obtained, the optimum combustion amount adjustment for each combustion mode x can be easily performed, and the optimum combustion state can always be obtained in each combustion mode x.

According to the invention described in claim 2, in addition to the effect of the invention described in claim 1, the combustion amount can be optimally adjusted from the minimum combustion amount to the maximum combustion amount. The optimum combustion state can be obtained.

According to the third aspect of the present invention, the optimum fuel supply frequency PUMPA (x) can be obtained in each combustion mode x, and the optimum combustion amount adjustment for each combustion mode x can be easily performed. , In each combustion mode x, an optimum combustion state can be always obtained.

According to the invention described in claim 4, in addition to the effect of the invention described in claim 3, the combustion amount can be optimally adjusted from the minimum combustion amount to the maximum combustion amount, and in any combustion amount. The optimum combustion state can be obtained.

[Brief description of drawings]

FIG. 1 is a schematic configuration block diagram of a main part of a control system of an oil fan heater.

FIG. 2 is an explanatory diagram of a standard air flow rate and a standard fuel supply frequency.

FIG. 3 is a processing flowchart for explaining the operation.

FIG. 4 is an explanatory diagram of a relationship between a combustion mode and an actual fuel supply frequency.

FIG. 5 is a diagram illustrating a relationship between a standard air flow rate, a standard fuel supply frequency, and an actual fuel supply frequency.

[Explanation of symbols]

 100 Oil fan heater control system 1 Microcomputer 2 Fine adjustment switch 3 Fine adjustment positive side switch 4 Fine adjustment negative side switch 5 Operation switch 6 Memory device 7 Pump fine adjustment calculation section 8 Automatic mode selection switch 9 Fixed mode selection switch 10 Room temperature sensor 11 Combustion blower 12 Electromagnetic pump 13 Display section BM (i) Standard air flow rate PUMP (i) Standard fuel supply frequency α, β Fuel supply frequency adjustment amount ΔPUMP (x) Fuel supply frequency adjustment amount PUMPA (x) Actual fuel supply frequency

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Takao Arai 2-5-5 Keihan Hondori, Moriguchi City, Osaka Sanyo Electric Co., Ltd.

Claims (4)

[Claims] 1. A standard blow rate of a blower for combustion and a standard fuel supply rate of a pump for fuel supply, each of which has n (n = 3 or more integer) combustion modes having different combustion amounts. In the combustion adjustment method for adjusting the combustion amount of the combustion device in which the set value is set, the standard fuel supply frequency corresponding to the standard fuel supply amount of the fuel supply pump is finely adjusted for the combustion mode with the smallest combustion amount among the combustion modes. The first step of obtaining the fuel supply frequency adjustment amount α [Hz], and the standard fuel supply frequency corresponding to the standard fuel supply amount of the fuel supply pump is finely adjusted for the combustion mode with the largest combustion amount among the combustion modes. The second step of adjusting to obtain the fuel supply frequency adjustment amount β [Hz], and other combustion modes except the combustion mode with the least amount of combustion and the combustion mode with the most amount of combustion (X = 2 or more (n-1) an integer) the standard fuel supply frequency in the PUMP (x) [Hz], the fuel supply amount of frequency adjustment in the combustion mode x and ΔPUMP (x) [Hz],
The standard air flow rate in the combustion mode x is BM (x), the standard air flow rate in the combustion mode with the least combustion amount is BM (1), and the standard air flow rate in the combustion mode with the most combustion amount is BM (n). ), X = BM (n) -BM (x), Y = BM (n) -BM (1), and Z = BM (x) -BM (1), in the combustion mode x A third step of obtaining the fuel supply frequency adjustment amount ΔPUMP (x) [Hz] by the equation (1), and ΔPUMP (x) = (α / Y) × X + (β / Y) × Z (1) The combustion mode Actual fueling frequency PUM at x
PA (x) [Hz] is obtained by the equation (2), and the fourth step of adjusting the combustion amount of the combustion apparatus and PUMPA (x) = PUMP (x) + ΔPUMP (x) (2) are provided. Characteristic combustion control method. 2. A standard blow rate of a blower for combustion and a standard fuel supply rate of a pump for fuel supply, each of which has n combustion modes (n is an integer of 3 or more) having different combustion amounts, and each combustion mode is preset. In the combustion adjustment method for adjusting the combustion amount of the combustion device in which the set value is set, the standard fuel supply frequency corresponding to the standard fuel supply amount of the fuel supply pump is finely adjusted for the combustion mode with the smallest combustion amount among the combustion modes. The first step of obtaining the fuel supply frequency adjustment amount α [Hz], and the standard fuel supply frequency corresponding to the standard fuel supply amount of the fuel supply pump is finely adjusted for the combustion mode with the largest combustion amount among the combustion modes. The second step of adjusting to obtain the fuel supply frequency adjustment amount β [Hz], and other combustion modes except the combustion mode with the least amount of combustion and the combustion mode with the most amount of combustion (X = 2 or more (n-1) an integer) the standard fuel supply frequency in the PUMP (x) [Hz], the fuel supply amount of frequency adjustment in the combustion mode x and ΔPUMP (x) [Hz],
The standard air flow rate in the combustion mode x is BM (x), the standard air flow rate in the combustion mode with the least combustion amount is BM (1), and the standard air flow rate in the combustion mode with the most combustion amount is BM (n). ), X = BM (n) -BM (x), Y = BM (n) -BM (1), and Z = BM (x) -BM (1), in the combustion mode x A third step of obtaining the fuel supply frequency adjustment amount ΔPUMP (x) [Hz] by the equation (1), and ΔPUMP (x) = (α / Y) × X + (β / Y) × Z (1) The combustion mode Actual fueling frequency PUM at x
PA (x) [Hz] is obtained by the equation (2), and the fourth step of adjusting the combustion amount of the combustion device, and PUMPA (x) = PUMP (x) + ΔPUMP (x) (2) Either of the combustion amounts In the case of setting an intermediate value between the combustion amounts of the two combustion modes, a fifth step of performing linear interpolation of the fuel supply frequencies corresponding to the two combustion modes to obtain the corresponding fuel supply frequency is provided. A combustion adjustment method characterized by the above. 3. A first storage means for storing a standard air flow rate of a combustion blower and a standard fuel supply rate of a fuel supply pump for each of n (integers of n = 3 or more) combustion amounts different from each other. A fuel supply frequency adjustment amount α [Hz] obtained by finely adjusting the standard fuel supply frequency corresponding to the standard fuel supply amount of the fuel supply pump for the combustion mode with the smallest combustion amount among the combustion modes; Based on the fuel supply frequency adjustment amount β [Hz] obtained by finely adjusting the standard fuel supply frequency corresponding to the standard fuel supply amount of the fuel supply pump for the combustion mode with the largest combustion amount among the combustion modes, Standard in other combustion modes x (an integer of x = 2 or more and (n-1) or less) excluding the combustion mode with the least amount of combustion and the combustion mode with the most amount of combustion Charge supply frequency is PUMP (x) [Hz], ΔP the fuel supply amount of frequency adjustment in the combustion mode x
UMP (x) [Hz], the standard air flow rate in the combustion mode x is BM (x), the standard air flow rate in the combustion mode with the least combustion amount is BM (1), and the combustion with the most combustion amount is The standard air flow rate in the mode is BM
(N), X = BM (n) -BM (x), Y = BM (n) -BM (1), and Z = BM (x) -BM (1). A fuel supply frequency adjustment amount ΔPUMP (x) [Hz] at x is calculated by the equation (1), and ΔPUMP (x) = (α / Y) × X + (β / Y) × Z (1) The combustion Actual fueling frequency PUM in mode x
PA (x) [Hz] is the fuel supply frequency adjustment amount ΔPU
It is characterized in that it is provided with adjusting means for adjusting the combustion amount of the combustion device, which is obtained from the equation (2) based on MP (x), and PUMPA (x) = PUMP (x) + ΔPUMP (x) (2). Combustion adjustment device. 4. A first blower for storing a standard blow rate of a combustion blower and a standard fuel supply rate of a fuel supply pump for each of n (n = 3 or more integer) combustion modes having different combustion rates.
A storage means and a fuel supply frequency adjustment amount α [Hz obtained by finely adjusting the standard fuel supply frequency corresponding to the standard fuel supply amount of the fuel supply pump for the combustion mode with the smallest combustion amount among the combustion modes. ] And the fuel supply frequency adjustment amount β [Hz] obtained by finely adjusting the standard fuel supply frequency corresponding to the standard fuel supply amount of the fuel supply pump for the combustion mode with the largest combustion amount among the combustion modes. Based on the above, the standard fuel supply frequency in the other combustion mode x (an integer of x = 2 or more and (n-1) or less) excluding the combustion mode with the least combustion amount and the combustion mode with the most combustion amount is PUMP (x ) [Hz], and the fuel supply frequency adjustment amount in combustion mode x is ΔP
UMP (x) [Hz], the standard air flow rate in the combustion mode x is BM (x), the standard air flow rate in the combustion mode with the least combustion amount is BM (1), and the combustion with the most combustion amount is The standard air flow rate in the mode is BM
(N), X = BM (n) -BM (x), Y = BM (n) -BM (1), and Z = BM (x) -BM (1). A fuel supply frequency adjustment amount ΔPUMP (x) [Hz] at x is calculated by the equation (1), and ΔPUMP (x) = (α / Y) × X + (β / Y) × Z (1) The combustion Actual fueling frequency PUM in mode x
PA (x) [Hz] is the fuel supply frequency adjustment amount ΔPU
Adjusting means for adjusting the combustion amount of the combustion device, which is obtained from the equation (2) based on MP (x), and PUMPA (x) = PUMP (x) + ΔPUMP (x) (2) Setting means for setting the combustion amount When the combustion amount is set to an intermediate value between the combustion amounts of any two combustion modes by the setting means, the fuel is supplied by performing linear interpolation of the fuel supply frequency corresponding to the two combustion modes. Supply frequency adjustment amount ΔPUMP (x)
And a means for interpolating the fuel supply frequency corresponding to the set combustion amount in place of, and a combustion adjusting method.