JPH087628B2 - Flow rate adjustment device for flow rate sensor - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a flow rate adjusting device for a flow rate sensor that adjusts an output value of a flow rate sensor that detects the amount of water.

[Conventional technology]

Generally, a flow sensor for detecting the amount of water passing through a heat exchanger of a gas-fired hot water supply for a bath, a gas-fired hot water supply for a kitchen, or a gas-fired hot water heating system is used in a water supply pipe for supplying water into the heat exchanger. A water amount counter that oscillates a pulse corresponding to the number of revolutions (count number) of an impeller that is rotated by water pressure,
And a water amount detecting circuit for detecting the water amount based on the number of pulses from the water amount counter. Further, the microcomputer changes the operating state of the heater such as the hot water supply combustor or the heating combustor according to the input value input from the water amount detection circuit.

However, the input value input from the water amount detection circuit may be different from the actual water amount passing through the heat exchanger due to variations in the components of the water amount counter or the water amount detection circuit or the load. As described above, when the actual amount of water passing through the heat exchanger cannot be obtained, the heating device such as the hot water supply combustor or the heating combustor is changed according to the input value different from the actual water amount input by the microcomputer. Since the operating state is changed, there is the inconvenience that the operating state corresponding to the actual amount of water cannot be obtained.

Therefore, in order to eliminate such an inconvenience, the output value output from the water amount detecting circuit is finely adjusted by manually operating the flow rate adjusting volume incorporated in the water amount detecting circuit. ing.

[Problems to be Solved by the Invention]

However, in the conventional gas-fired bath hot water supply device, gas-fired kitchen hot water supply device, and gas-fired hot water heating device, when finely adjusting the output value output from the water amount detection circuit, for example, an input water temperature sensor or It is often necessary to fine-tune the input value from a sensor component such as a hot water temperature sensor or the output value to a control component such as a blower or a gas proportional valve. At this time, if the temperature detection circuit of the sensor component such as the incoming water temperature sensor or the hot water temperature sensor or the drive circuit of the control component such as the blower or the gas proportional valve and the water amount detection circuit are installed at different places, The adjustment work of the input value from or the output value to the parts and the adjustment work of the water amount signal of the flow sensor had to be performed separately.

Also, in the case of a model in which the temperature detection circuit, the drive circuit, or the water amount detection circuit is housed in the housing in order to protect the temperature detection circuit, the drive circuit, or the water amount detection circuit, each time the adjustment volume is operated, the housing Since the lid has to be opened and closed, the adjustment work becomes more troublesome as the number of adjustment volumes increases.

For this reason, the temperature detection circuits for the sensor components such as the incoming water temperature sensor and the hot water temperature sensor, or the drive circuits for the control components such as the blower and the proportional valve, and the water amount detection circuit were installed close to each other, and the adjustment volumes were installed close to each other. In this case, the connection wiring that connects the water amount counter and the water amount detection circuit is laid out,
In addition, there is a problem that the connection wiring for connecting the microcomputer to the water amount detection circuit and the flow rate adjusting volume becomes complicated.

INDUSTRIAL APPLICABILITY According to the present invention, the opportunity to adjust the input value from the water amount detection circuit can be used to easily and easily adjust the components different from the flow rate sensor, and the control means, the water amount detection circuit, and the flow rate adjustment volume are provided. An object of the present invention is to provide a flow rate adjusting device for a flow rate sensor in which connection wiring to be connected can be easily routed.

[Means for solving the problem]

The flow rate adjusting device of the flow rate sensor of the present invention includes a heater for heating water passing through the heat exchanger, a water amount counter provided in a water supply pipe for supplying water to the heat exchanger, and a count number of the water amount counter. A flow rate sensor consisting of a water amount detection circuit for detecting the amount of water in the water supply pipe, and a flow rate adjusting volume for outputting an operation value according to a manually operated position are provided in the vicinity of the adjustment volume of a part different from the flow rate sensor. In addition, the detected value corresponding to the input value from the water amount detection circuit is calculated, and the operation value of the flow rate adjusting volume is calculated by comparing the operation value from the flow rate adjusting volume with a reference value, and the calculated value is calculated. And a control means for controlling the operating state of the heater on the basis of the adjusted water amount obtained by this adjusting function. It adopted the technical means with a.

[Action]

According to the flow rate adjusting device of the flow rate sensor of the present invention, the amount of water passing through the water supply pipe for supplying water to the heat exchanger is detected from the count number of the water amount counter by the water amount detection circuit, and the control unit receives the input from the water amount detection circuit. Enter the value. Then, the control means calculates a detection value corresponding to the input value, and changes the operating state of the heater for heating the water passing through the heat exchanger in accordance with the detection value obtained by this calculation.

The actual amount of water passing through the heat exchanger may differ due to variations in the components or loads of the water amount counter and the water amount detection circuit. In this way, when the actual amount of water passing through the heat exchanger cannot be obtained, the flow rate adjusting volume is manually operated. At this time, the control means calculates the operation amount of the flow rate adjusting volume by comparing the operation value from the flow rate adjusting volume with the reference value. Then, the detected value corresponding to the input value from the water amount detection circuit is calculated, the adjusted water amount is obtained from the detected value obtained by this operation and the operation amount of the flow rate adjusting volume, and heating is performed based on the obtained adjusted water amount. By controlling the operating state of the device, the input value from the water amount detection circuit or the detected value corresponding to this input value becomes a value corresponding to the actual water amount passing through the heat exchanger.

In addition, since the flow rate adjustment volume is provided near the adjustment volume, you can use the opportunity to adjust the input value from the water volume detection circuit to almost the actual water volume and adjust the parts different from the flow rate sensor together. And it's easy.

Further, by providing a flow rate adjusting volume in the vicinity of the adjusting volume, even in a model in which the adjusting volume and the flow rate adjusting volume are housed in the housing, the flow rate increases as the number of adjusting volumes increases. Adjustment work of parts different from the sensor becomes easy.

By providing the flow rate adjusting volume separately from the water amount detecting circuit and further in the vicinity of the control means and the adjusting volume, the connection wiring for connecting the water amount counter and the water amount detecting circuit is laid out, and the control means and the water amount. It becomes easy to route the connection wiring that connects the detection circuit and the flow rate adjusting volume.

〔The invention's effect〕

Since the flow rate adjusting device of the flow rate sensor of the present invention is provided with the flow rate adjusting volume and the adjusting volume in one place, the opportunity to adjust the input value from the water amount detecting circuit to almost the actual water amount is used. As a result, the parts different from the flow sensor can be adjusted together and easily.

Further, the greater the number of adjusting volumes, the easier the work of adjusting the input value or the output value of the component different from the flow sensor. Then, it becomes easy to route the connection wiring connecting the water amount counter and the water amount detection circuit, and moreover, it becomes easy to route the connection wiring electrically connected to the control means, the water amount detection circuit, and the flow rate adjusting volume.

〔Example〕

Next, a flow rate adjusting device for a flow rate sensor according to the present invention will be described based on an embodiment shown in FIGS. 1 to 15. FIG. 1 and FIG. 2 show an adjusting device for an additional heating hot water supply system with heating adopting the present invention.

Reference numeral 1 denotes an adjusting device of a heating-additional hot water supply device capable of supplying hot water to a bath and kitchen, heating the bath and heating the room. An adjusting device 1 for a heating-boiled hot water supply system includes a gas combustion hot water supply combustor 2, a gas combustion heating combustor 3, a water supply pipe 4, a gas supply pipe 5 as a gas supply passage, and a control circuit 6.
It has.

The hot water supply combustor 2 includes a hot water supply gas burner 22, a hot water supply blower 23, and a hot water supply heat exchanger 24 in a combustion case 21.

The hot water supply gas burner 22 is a forced air blower gas burner that burns the fuel gas supplied from the gas supply pipe 5 and the combustion air supplied by the hot water supply blower 23 at a predetermined air-fuel ratio, and is generated by combustion. Combustion gas exhaust port 25
Is discharged from the combustion case 21 to the outside. This hot water supply gas burner 22 is provided with a hot water supply sparker 26 as an ignition means, a hot water supply frame rod 701 for detecting a flame, and a hot water supply thermocouple 702 for detecting an air-fuel ratio in the vicinity thereof. The hot-water supply fan 23 is an electric fan that generates an air flow toward the hot-water supply gas burner 22 in the combustion case 21 when energized. The heat exchanger 24 for hot water supply is a gas burner for hot water supply.
The heat generated by the flame and combustion gas generated at 22
The water flowing in the water supply pipe 4 is heated.

The heating combustor 3 includes a heating gas burner 32, a heating blower 33, and a heating heat exchanger 34 in a combustion case 31.

The heating gas burner 32 is a forced-blowing gas burner that burns the fuel gas supplied from the gas supply pipe 5 and the combustion air supplied by the heating blower 33 at a predetermined air-fuel ratio, and is generated by combustion. Exhausted combustion gas
It is discharged to the outside of the combustion case 31 from 35. In the vicinity of the heating gas burner 32, a heating sparker 36 as an ignition means and a heating frame rod 703 for detecting a flame are provided. The heating blower 33 is an electric fan that generates an air flow toward the heating gas burner 32 in the combustion case 31 when energized. The heating heat exchanger 34 heats the water flowing in the water supply pipe 4 by the heat held by the flame and the combustion gas generated in the heating gas burner 32.

The water supply pipe 4 includes a water supply pipe 41, a hot water supply pipe 42, and a hot water pipe.
43, a replenishment water pipe 45 for replenishing water to the expansion tank 44 from the upstream of the hot water supply heat exchanger 24, a bath heating circulation circuit 46, a heating circulation circuit 47, and a bath heat exchanger 48.

The water supply pipe 41 is a pipe for supplying water from a public water pipe to the hot water heat exchanger 24, and a governor-type water flow control valve for adjusting the water supply amount (water amount) by proportionally controlling the water pressure.
401, a bypass control valve 402 for mixing water with hot water when the hot water temperature is higher than a set temperature, an amount of water that oscillates a pulse corresponding to the number of revolutions (count number) of an impeller that is rotated by water pressure in the water supply pipe 41 It has a counter 704 and an incoming water temperature thermistor 705 as a temperature detecting means.

The hot water supply pipe 42 is a pipe for supplying hot water from the downstream of the hot water supply heat exchanger 24 to the kitchen, and the first hot water supply temperature thermistor 706 for detecting the water temperature heated by the hot water supply heat exchanger 24, the heat exchange Second hot water supply temperature thermistor 707 for detecting subsequent water temperature or water temperature when water and hot water are mixed, and hot water supply pipe 4
2 Hot water supply water flow switch that detects whether or not there is a water flow in 2
Equipped with 08.

The hot water pipe 43 is a pipe that is branched from the hot water supply pipe 42 to supply hot water to the bath, and when the negative pressure occurs, the hot water pipe
43A vacuum breaker 411 that prevents backflow of hot water by communicating with the atmosphere and the check valves 412 and 41 that prevent backflow of hot water.
Equipped with 3. The hot water pipe 43 includes a hot water pipe 403 for supplying hot water to the bath when energized, and an electric three-way valve 404 for switching between hot water supply and hot bath heating.

The expansion tank 44 temporarily stores make-up water.

The makeup water pipe 45 includes a makeup water solenoid valve 405 that replenishes the expansion tank 44 with water when energized when the manual valve 49 is open.

The bath heating circulation circuit 46 includes a bath water flow switch 709 that detects whether or not there is a water flow in the circuit, a bath temperature thermistor 710 that detects the temperature of the bath water, and a bath supplement by pumping hot water existing in the bath. A bath circulation pump 406 for circulating the inside of the heating circulation circuit 46 is provided.

The heating circulation circuit 47 includes a heating circulation pump 407 that pumps the water in the expansion tank 44 to the heating heat exchanger 34, and a heating hot water temperature that detects the temperature of hot water heated by the heating heat exchanger 34. It has a thermistor 711.

The bath heat exchanger 48 reheats the hot water circulating in the bath heating circulation circuit 46 by the hot water heated by the heating heat exchanger 34 supplied when the bath electromagnetic valve 408 is energized.

As the gas supply pipe 5, a public gas pipe is used as a hot water gas burner 22.
A hot water supply gas pipe 51 that guides the fuel gas to the heating gas pipe 52 and a heating gas pipe 52 that guides the fuel gas from the public gas pipe to the heating gas burner 32 are provided.

The hot water supply gas pipe 51 is opened when energized to supply the fuel gas to the hot water supply gas burner 22, the hot water supply solenoid valve 53, the hot water supply solenoid valve 54, and the fuel gas gas passing through the hot water supply gas pipe 51. A hot-water supply gas proportional valve 55 for controlling the pressure to adjust the amount of fuel gas supplied to the hot-water supply gas burner 22, and a hot-water supply switching valve 56 for controlling the proportional control of the hot-water supply gas proportional valve 55 in two stages.

The heating gas pipe 52 opens when it is energized and supplies the fuel gas to the heating gas burner 32. The heating original solenoid valve 57 and the heating solenoid valve 58, and the fuel gas passing through the heating gas pipe 52 A heating gas proportional valve 59 is provided for controlling the gas pressure and adjusting the amount of fuel gas supplied to the hot water supply gas burner 22.

Next, the control circuit 6 of the adjusting device 1 of the heating-boiler for hot water supply according to the present invention will be described with reference to FIGS. 1 to 15.

The control circuit 6 includes a detection device 7, a microcomputer (CPU) 8 as control means, a first power supply circuit 9, a hot water supply switching circuit 10, a hot water supply drive circuit 11, a hot water supply proportional valve drive circuit 12, and a heating switching circuit. 13, heating drive circuit
14, a heating proportional valve drive circuit 15 and a second power supply circuit 16 are provided.

The detection device 7 includes a hot water supply flame detection circuit 71 and an air twist ratio detection circuit.
72, heating flame detection circuit 73, water amount detection circuit 74, hot water supply temperature detection circuit 75, heating temperature detection circuit 76, hot water supply air flow amount detection circuit 77, heating air flow amount detection circuit 78 and manual controller 79
It is equipped with.

The hot water supply flame detection circuit 71 determines whether or not there is a flame in the hot water supply gas burner 22 from the signal input from the hot water supply frame rod 701, and sends the determination result to the CPU 8. The air-twist ratio detection circuit 72 detects the air-twist ratio from the signal input from the hot water supply thermocouple 702 and sends the air-twist ratio to the CPU 8. The heating flame detection circuit 73 determines from the signal input from the heating frame rod 703 whether or not there is flame in the heating gas burner 32, and sends the determination result to the CPU 8. Water amount detection circuit 74
Is the detected water volume corresponding to the water volume in the water supply pipe 41 by integrating the number of pulses from the water volume counter 704 (water volume signal = input value)
To CPU8.

Here, the flow rate sensor according to the present invention is a water amount detection circuit.
It is composed of 76 and water counter 704.

The hot water supply temperature detection circuit 75 detects temperatures from the incoming water temperature thermistor 705, the first hot water supply hot water outlet thermistor 706, and the second hot water supply hot water temperature thermistor 707, and the detected temperature is detected by the CPU 8
Send to The heating temperature detection circuit 76 is a bath temperature thermistor.
The temperature is detected from 710 and the hot water outlet temperature thermistor 711, and the detected temperature is sent to the CPU 8. Air volume detection circuit for hot water supply 77
Detects the air volume of the hot water supply fan 23 from the hot water supply air volume sensor 712 and sends an electric signal corresponding to the air volume to the CPU 8.
The heating air volume detection circuit 78 detects the air volume of the heating fan 33 from the heating air volume sensor 713, and sends an electric signal corresponding to the air volume to the CPU 8.

The manual controller 79 includes a hot water supply operation switch for switching between operation and stop of the hot water supply combustor 2, a temperature setting unit for setting the hot water supply temperature of the hot water supply combustor 2, and an operation of the heating combustor 3.
Equipped with a heating operation switch that switches the operation stop, a bath hot water operation that switches the bath hot water operation, a bath operation switch that switches the operation stop, and a changeover switch (both not shown) that switches between the bath hot water and the bath heating To do.

The CPU 8 starts operating when it is supplied with electricity from the first power supply circuit 9. The CPU 8 has an input adjustment volume group 81, an output adjustment volume group 82, an adjustment function 83 and a control function 84.
Is provided.

As shown in FIGS. 3 to 7, the input adjustment volume group 81 is a water volume adjustment volume (volume adjustment volume according to the present invention) 81 for adjusting the water volume of the water supply pipe 41.
1, temperature control volume 8 to adjust the first hot water temperature for hot water supply
12, temperature control volume to adjust the second hot water temperature for hot water supply
813, a temperature adjusting volume 814 for adjusting the bath temperature, and a temperature adjusting volume 815 for adjusting the hot water discharge temperature.
, Which are manually operated. As shown in FIG. 8 and FIG. 9, the output adjustment volume group 82 is supplied to the proportional valve adjustment volume 821 and the heating gas proportional valve 59 for adjusting the amount of electricity supplied to the hot water supply gas proportional valve 55. Volume 822 for proportional valve adjustment that adjusts the energizing amount
, Which are manually operated.

These adjusting volumes 811 to 815, 821, 822 are all concentrated in the vicinity of the CPU 8 and arranged in one place, and the voltage (5V)
The partial pressure value of is sent to CPU8. These adjustment volume 811
815, 821, and 822 include capacitors 801 for preventing noise generation and changing the operation speed, and resistors 802, 803 for stepping down the electricity supplied from the first power supply circuit 9.
Etc. are connected.

FIG. 10 is a graph showing the amount of operation of the water amount adjusting volume 811 and the amount of increase or decrease in the amount of water. FIG. 11 is a graph showing the manipulated variables of the temperature adjusting volumes 812 to 815 and the increase / decrease temperature. FIG. 12 is a graph showing the operation amount of the proportional valve adjusting volumes 821 and 822 and the increase / decrease amount of the energization amount.

 The adjusting function 83 of the CPU 8 performs the following three operations.

1) The adjusting function 83 calculates a detection (voltage) value according to the detected water amount (input amount) from the water amount detection circuit 74. Furthermore, the adjusting function 83 compares the partial pressure amount (operation value) from the water volume adjusting volume 811 with the reference value and adjusts the water volume adjusting volume.
Calculate the operation amount of 811. Then, the adjusting function 83
Volume 81 for water volume adjustment calculated based on the graph in the figure
Calculate the adjusted water amount from the manipulated variable of 1 and the calculated detected amount (calculated value of the detected water amount). Subsequently, the adjusting function 83 gives an instruction to the control function 84 to control the combustion state of the hot water supply combustor 2 based on the calculated amount of adjusted water.

2) The adjusting function 83 calculates a detection (voltage) value according to the detected temperatures from the hot water supply temperature detection circuit 75 and the heating temperature detection circuit 76. Further, the adjusting function 83 compares the partial pressure value from the temperature adjusting volumes 812 to 815 with the reference value to calculate the operation amount of the temperature adjusting volumes 812 to 815. And
Based on the graph of FIG. 11, the adjusting function 83 obtains the adjusted temperature from the calculated operation amount of the temperature adjusting volumes 812 to 815 and the calculated detected value. Subsequently, the adjusting function 83 gives an instruction to the control function 84 to control the combustion state of the hot water supply combustor 2 and the combustion state of the heating combustor 3 based on the obtained adjustment temperature.

3) The adjustment function 83 calculates a detection (voltage) value according to the detected air volume from the hot water supply air volume detection circuit 77 and the heating air volume detection circuit 78. Further, the adjusting function 83 compares the partial pressure value from the proportional valve adjusting volumes 821, 822 with the reference value to calculate the operation amount of the proportional valve adjusting volumes 821, 822. Then, the adjusting function 83 obtains the adjusted energization amount from the calculated operation amount of the proportional valve adjusting potentiometers 821 and 822 and the calculated detection value based on the graph of FIG. Continued adjustment function 83
Gives an instruction to the control function 84 to control the energization amount supplied to the hot water supply gas proportional valve 55 and the heating gas proportional valve 59 based on the obtained adjusted energization amount.

The control function 84 of the CPU 8 sends control signals according to various detection values from the detection device 7, the adjusting function 83, the hot water supply water flow switch 708 and the bath water flow switch 709, the adjusted water amount or the adjusted temperature to the hot water supply switching circuit 10, It is sent to the hot water supply drive circuit 11, the heating switching circuit 13, and the heating drive circuit 14. The control function 84 sends an adjustment signal corresponding to the adjusted energization amount from the adjustment function 83 to the hot water supply proportional valve drive circuit 12 and the heating proportional valve drive circuit 15.

When any one of the hot water supply operation switch, the heating operation switch, and the bath operation switch of the manual controller 79 is turned on, the first power supply circuit 9 causes the CPU 8 to be electrically (for example,
Supply 5V).

The hot water supply switching circuit 10 starts to operate when it is supplied with electricity from the second power supply circuit 16, and in response to a control signal from the control function 84 of the CPU 8, the hot water supply spaker 26, the hot water supply solenoid valve 53, and the hot water supply. The solenoid valve 54 and the hot water supply switching valve 56 are energized and stopped.

The hot water supply drive circuit 11 starts its operation when supplied with electricity from the second power supply circuit 16, and according to a control signal from the control function 84 of the CPU 8, the hot water supply blower 23 and the governor type water flow control valve 40.
1 and variable control of the energization amount of the bypass control valve 402 is performed.

The hot water supply proportional valve drive circuit 12 starts operating when electricity is supplied from the second power supply circuit 16, and changes the energization amount of the hot water supply gas proportional valve 55 in accordance with a control signal from the control function 84 of the CPU 8. Take control.

The heating switching circuit 13 starts its operation when supplied with electricity from the second power supply circuit 16, and in response to a control signal from the control function 84 of the CPU 8, the heating sparker 36, the heating original solenoid valve 57, the heating The solenoid valve 58, the hot water solenoid valve 403, the electric three-way valve 404, the makeup water solenoid valve 405, the bath circulation pump 406, the heating circulation pump 407, and the bath solenoid valve 408 are energized and stopped.

The heating drive circuit 14 starts its operation when supplied with electricity from the second power supply circuit 16, and performs variable control of the energization amount of the heating blower 33 in accordance with a control signal from the control function 84 of the CPU 8.

The heating proportional valve drive circuit 15 starts its operation when supplied with electricity from the second power supply circuit 16, and changes the energization amount of the heating gas proportional valve 59 according to the control signal from the control function 84 of the CPU 8. Take control.

When any one of the hot water supply operation switch, the heating operation switch, or the bath operation switch of the manual controller 79 is turned on, the second power supply circuit 16 switches the hot water supply switching circuit 10, the hot water supply drive circuit 11, and the hot water supply proportional valve. Drive circuit 12,
Electricity (for example, 12 V) is supplied to the heating switching circuit 13, the heating drive circuit 14, and the heating proportional valve drive circuit 15.

The water amount adjustment of the adjusting function 83 of the CPU 8 of the present embodiment will be described based on the flowchart of FIG.

First, it is determined whether or not the detected water amount (input value) corresponding to the amount of water in the water supply pipe 41 is input from the water amount detection circuit 74 (step S1). When it is determined that the detected water amount is not input from the water amount detection circuit 74 (No), the water amount adjustment is not performed.

When it is determined in step S1 that the detected water amount is input from the water amount detection circuit 74 (Yes), a detection (voltage) value corresponding to the input detected water amount is calculated (step S2).

Next, it is determined whether or not the partial pressure value (operation value) V ₁ corresponding to the operation position is input from the water volume adjusting volume 811 (step S3). When it is judged that the partial pressure value is not input from the water volume adjusting volume 811 (No), the water volume is not adjusted.

In step S3, when it is determined that the partial pressure value is input from the water volume adjusting volume 811 (Yes), the reference value V ₀
And whether the partial pressure value V ₁ is the same or not is determined. That is, it is determined whether or not V ₀ = V ₁ (step S4). V ₀
When it is determined that = V ₁ (Yes), return without adjusting the water volume. That is, the control function 84 is instructed to control the combustion state of the hot water supply combustor 2 based on the detected value corresponding to the calculated detected water amount.

In step S4, it is determined that V ₀ = V ₁ is not satisfied (N
At the time o), the reference value V ₀ and the partial pressure value V ₁ are compared to calculate the operation amount of the water volume adjusting volume 811 (step S5).

It is determined whether or not the calculated operation amount of the water volume adjusting volume 811 is a positive operation amount (step S6). When it is judged to be a positive operation amount (Yes), the adjusted water amount is calculated from the detected value corresponding to the calculated detected water amount and the positive operation amount of the water amount adjusting volume 811 based on the graph of FIG. (Step S7). Then return. That is, the control function 84 is instructed to control the combustion state of the hot water supply combustor 2 based on the calculated adjusted water amount.

In step S6, when it is determined that the amount of operation is not positive (No), that is, when it is determined that the amount of operation is negative, the detected value corresponding to the calculated amount of detected water and the 10th
The adjusted water amount is calculated from the negative operation amount of the water amount adjusting volume 811 based on the graph in the figure (step S
8). Then return. That is, the control function 84 is instructed to control the combustion state of the hot water supply combustor 2 based on the calculated adjusted water amount.

The temperature adjustment of the heated hot water temperature of the adjusting function 83 of the CPU 8 of the present embodiment will be described based on the flowchart of FIG.

First, it is determined whether the detected temperature is input from the heating temperature detection circuit 76 (step S11). When it is determined that the detected temperature is not input from the heating temperature detection circuit 76 (No), the temperature adjustment is not performed.

When it is determined in step S11 that the detected temperature is input from the heating temperature detection circuit 76 (Yes), the detected (voltage) value corresponding to the input detected temperature is calculated (step S12).

Next, it is determined whether or not the partial pressure value (operation value) V ₁ corresponding to the operation position is input from the temperature adjustment volume 815 (step S13). When it is judged that the partial pressure value is not input from the temperature adjusting volume 815 (No), the temperature is not adjusted.

In step S13, when it is determined that the partial pressure value is input from the temperature adjusting volume 815 (Yes), the reference value V ₀
And whether the partial pressure value V ₁ is the same or not is determined. That is, it is determined whether or not V ₀ = V ₁ (step S14). V
_When it is determined that ₀ = V ₁ (Yes), the temperature is not adjusted and the process returns. That is, the control function 84 is instructed to control the combustion state of the heating combustor 3 based on the detected value corresponding to the calculated detected temperature.

In step S14, it is determined that V ₀ = V ₁ is not satisfied (N
o), the reference value V ₀ and the partial pressure value V ₁ are compared to calculate the manipulated variable of the temperature adjusting volume 815 (step S15).

It is determined whether or not the calculated operation amount of the temperature adjusting volume 815 is a positive operation amount (step S16). When the positive operation amount is determined (Yes), the adjusted temperature is calculated from the detected value corresponding to the calculated detected temperature and the positive operation amount of the temperature adjusting volume 815 based on the graph of FIG. (Step S17). Then return. That is, the control function 84 is instructed to control the combustion state of the heating combustor 3 based on the calculated adjusted temperature.

In step S16, when it is determined that the operation amount is not positive (No), that is, when the operation amount is negative, the detected value corresponding to the calculated detected temperature and
The adjustment temperature is calculated from the minus operation amount of the temperature adjustment volume 815 based on the graph of FIG. 11 (step S1
8). Then return. That is, the control function 84 is instructed to control the combustion state of the heating combustor 3 based on the calculated adjusted temperature.

The temperature adjustment of the hot water supply first hot water supply temperature, the hot water supply second hot water supply temperature, and the bath temperature of the adjusting function 83 is omitted because it is the same as the temperature adjustment of the hot water supply hot water temperature shown in the flowchart of FIG.

Adjustment of the energization amount of the hot water supply gas proportional valve 55 of the adjusting function 83 of the CPU 8 of the present embodiment will be described based on the flowchart of FIG.

First, it is determined whether or not the detected air volume corresponding to the air volume of the hot water supply fan 23 is input from the hot water supply air volume detection circuit 77 (step S21). When it is determined that the detected air volume is not input from the hot water supply air volume detection circuit 77 (No), the energization amount is not adjusted.

When it is determined in step S21 that the detected air volume is input from the hot water supply air volume detection circuit 77 (Yes), a detection (voltage) value corresponding to the input detected air volume is calculated (step S22).

Next, it is determined whether or not the partial pressure value (operation value) V ₁ corresponding to the operation position is input from the proportional valve adjusting volume 821 (step S23). When it is judged that the partial pressure value is not input from the proportional valve adjusting volume 821 (No), the energization amount is not adjusted.

In step S23, the proportional valve adjusting volume, 821
When it is determined that the partial pressure value is input (Yes), it is determined whether the reference value V ₀ and the partial pressure value V ₁ match. That is, it is determined whether or not V ₀ = V ₁ (step S2
Four). When it is determined that V ₀ = V ₁ (Yes), the flow returns without adjusting the energization amount. That is, the control function 84 is instructed to control the combustion state of the hot water supply combustor 2 based on the detected value corresponding to the calculated detected air volume.

In step S24, it is determined that V ₀ = V ₁ is not satisfied (N
o), the reference value V ₀ and the partial pressure value V ₁ are compared to calculate the manipulated variable of the proportional valve adjusting potentiometer 821 (step S25).

It is determined whether or not the calculated operation amount of the proportional valve adjusting volume 821 is a positive operation amount (step S26). When it is determined that the operation amount is positive (Yes), the detected value corresponding to the calculated detected air volume and the positive operation amount of the proportional valve adjustment volume 821 based on the graph in FIG. The energization (adjustment energization amount) supplied to the valve 55 is calculated (step S27). Then return. That is, the hot water supply gas proportional valve 55 is calculated based on the calculated adjusted energization amount.
The control function 84 is instructed to control.

In step S26, when it is determined that the operation amount is not a positive operation amount (No), that is, when it is determined that the operation amount is a negative operation amount, the detected value corresponding to the calculated detected air volume,
An energization amount (adjustment energization amount) supplied to the hot water supply gas proportional valve 55 is calculated from the negative operation amount of the proportional valve adjustment volume 821 based on the graph of FIG. 11 (step S28). Then return. That is, a control function is provided to control the hot water supply gas proportional valve 55 based on the calculated adjusted energization amount.
Give instructions to 84.

Adjust the energization amount of the heating gas proportional valve 59 of the adjustment function 83
It is the same as the energization amount adjustment of the hot water supply gas proportional valve 55 shown in the flowchart of FIG.

The operation of this embodiment will be described with reference to FIGS.

I. Adjustment of Water Volume of Water Supply Pipe 41 When the water volume adjusting volume 811 is manually operated to increase the resistance value, the partial pressure value corresponding to the operating position is sent to the adjusting function 83 of the CPU 8. The adjusting function 83 of the CPU 8 derives a positive operation amount of the water amount adjusting volume 811 from the comparison result of the partial pressure value from the water amount adjusting volume 811 and the reference value. Further, the adjusting function 83 of the CPU 8 calculates a detection value (Q) corresponding to the detected water amount from the water amount detection circuit 74.

Then, the adjusted water amount (Q + q ₁ ) is obtained from the calculated detection value (Q) and the positive operation amount of the water amount adjusting volume 811. Therefore, the detected value (Q) corresponding to the detected water amount from the water amount detection circuit 74 is adjusted (corrected) to the adjusted water amount (Q + q ₁ ). Then, the adjusting function 83 of the CPU 8 controls the control function 84 so as to control the combustion state of the hot water supply combustor 2 based on the adjusted water amount (Q + q ₁ ).

Here, q ₁ is the increase amount of the water amount corresponding to the positive operation amount of the water amount adjusting volume 811 derived from the graph of FIG.

When the water volume adjusting volume 811 is manually operated to decrease the resistance value, the partial pressure value corresponding to the operation position is sent to the adjusting function 83 of the CPU 8. The adjusting function 83 of the CPU 8 derives a negative operation amount of the water volume adjusting volume 811 from the comparison result of the partial pressure value from the water volume adjusting volume 811 and the reference value. Further, the adjusting function 3 of the CPU8 is the water amount detecting circuit 74
The detected value (Q) corresponding to the amount of detected water is calculated.

Then, the adjusted water amount (Q−q ₂ ) is obtained from the calculated detection value (Q) and the negative operation amount of the water amount adjusting volume 811. Therefore, the detection value corresponding to the detected amount of water from the water detecting circuit 74 (Q) is adjusted (corrected) to adjust the amount of water (Q-q _2). Then, the adjusting function 83 of the CPU 8 controls the control function 84 so as to control the combustion state of the hot water supply combustor 2 by the adjusted water amount (Q−q ₂ ).

Here, q ₂ is the decrease amount of the water amount corresponding to the negative operation amount of the water amount adjusting volume 811 derived from the graph of FIG.

II. Temperature Adjustment of Hot Water for Heating When the temperature adjusting volume 815 is manually operated to increase the resistance value, the partial pressure value according to the operation position is sent to the adjusting function 83 of the CPU 8. The adjusting function 83 of the CPU 8 derives a positive operation amount of the temperature adjusting volume 815 from the comparison result of the partial pressure value from the temperature adjusting volume 815 and the reference value. Further, the adjusting function 83 of the CPU 8 calculates a detected value (T) corresponding to the detected temperature from the heating temperature detecting circuit 76.

Then, the adjusted temperature (T + t ₁ ) is obtained from the calculated detected value (T) and the plus operation amount of the temperature adjusting volume 815. Therefore, the detected value (T) corresponding to the detected temperature from the heating temperature detection circuit 76 is adjusted (corrected) to the adjusted temperature (T + t ₁ ). Then, the adjusting function 83 of the CPU 8 controls the control function 84 so as to control the combustion state of the hot water supply combustor 2 based on this adjusting temperature (T + t ₁ ).

Here, t ₁ is the increased temperature corresponding to the positive operation amount of the temperature adjustment volume 815, which is derived from the graph of FIG.

When the temperature adjusting volume 815 is manually operated to reduce the resistance value, it sends a partial pressure value according to the operation position to the adjusting function 83 of the CPU 8. The adjusting function 83 of the CPU 8 derives a negative operation amount of the temperature adjusting volume 815 from the comparison result of the partial pressure value from the temperature adjusting volume 815 and the reference value. Further, the adjusting function 83 of the CPU 8 calculates a detected value (T) corresponding to the detected temperature from the heating temperature detecting circuit 76.

Then, the adjusted temperature (T−t ₂ ) is obtained from the calculated detected value (T) and the negative operation amount of the temperature adjusting volume 815. Therefore, the detected value (T) corresponding to the detected temperature from the heating temperature detection circuit 76 is the adjusted temperature (T−t ₂ ).
Is adjusted (corrected). And the adjustment function 83 of the CPU8
The control function 84 is controlled so as to control the combustion state of the heating combustor 3 by the adjusted temperature (T-t ₂ ).

Here, t ₂ is the decrease temperature corresponding to the manipulated variable of the Ninus of the temperature adjusting volume 815, which is derived from the graph of FIG. 11.

The temperature adjustments of the hot water supply first hot water temperature, the hot water supply second hot water temperature, and the bath temperature are omitted because they are the same as the heating hot water temperature adjustments.

III. Energization amount adjustment of hot water supply gas proportional valve 55 When the proportional valve adjusting volume 821 is manually operated to increase the resistance value, the partial pressure value according to the operation position is sent to the adjusting function 83 of the CPU 8. . The adjusting function 83 of the CPU 8 derives a positive operation amount of the proportional valve adjusting volume 821 from the comparison result of the partial pressure value from the proportional valve adjusting volume 821 and the reference value. Further, the adjusting function 83 of the CPU 8 calculates the energization amount (I) supplied to the hot water supply gas proportional valve 55 corresponding to the air flow input from the hot water supply air flow rate detection circuit 77.

Then, the adjusted energization amount (I + i ₁ ) is calculated from the calculated energization amount (I) and the positive operation amount of the proportional valve adjusting volume 821.
Is required. Therefore, the energization amount (I) corresponding to the detected air amount from the hot water supply air amount detection circuit 77 is the adjusted energization amount (I +
i ₁ ) is adjusted (corrected). And CPU8 adjustment function 83
Sends a signal to the control function 84 so as to control by the adjusted energization amount (I + i ₁ ).

Here, i ₁ is the increase amount of the energization amount corresponding to the positive operation amount of the proportional valve adjusting volume 821, which is derived from the graph of FIG.

At this time, the control function 84 sends a control signal to the hot water supply proportional valve drive circuit 12 so that the amount of current supplied to the hot water supply gas proportional valve 55 becomes the adjusted current supply amount (I + i ₁ ). The hot water supply gas proportional valve 55 supplied with the adjusted energization amount (I + i ₁ ) from the hot water supply proportional valve drive circuit 12 is set to an opening degree corresponding to the adjusted energization amount (I + i ₁ ). Therefore, the gas burner for hot water supply
The fuel gas supplied to 22 is, for example, a proportional valve drive circuit for hot water supply.
Even if there are variations in the 12 components and loads, it is possible to obtain a supply amount corresponding to the air volume input from the hot water supply air volume detection circuit 77. Therefore, the hot water blower 23
Since the hot water supply gas proportional valve 55 and the hot water supply gas proportional valve 55 do not fall into the combustion state where the concentration of the fuel gas is lean, the optimum air-twist ratio control can be performed.

When the proportional valve adjusting volume 821 is manually operated to decrease the resistance value, the proportional valve adjusting volume 821 sends a partial pressure value corresponding to the operation position to the adjusting function 83 of the CPU 8. The adjusting function 83 of the CPU 8 derives a negative operation amount of the proportional valve adjusting volume 821 from the comparison result of the partial pressure value from the proportional valve adjusting volume 821 and the reference value. Further, the adjusting function 83 of the CPU 8 calculates the energization amount (I) supplied to the hot water supply gas proportional valve 55 corresponding to the air flow input from the hot water supply air flow rate detection circuit 77.

Then, based on the calculated energization amount (I) and the negative operation amount of the proportional valve adjusting volume 821, the adjustment energization amount (I +
i ₂ ) is required. Therefore, the hot water supply air volume detection circuit 77
The energization amount (I) corresponding to the detected air volume from is adjusted (corrected) to the adjusted energization amount (I + i ₂ ). Then, the adjusting function 83 of the CPU 8 sends a signal to the control function 84 to control the adjusting energization amount (I + i ₂ ).

Here, i ₂ is the reduction amount of the energization amount corresponding to the negative operation amount of the proportional valve adjusting volume 821, which is derived from the graph of FIG.

At this time, the control function 84 sends a control signal to the hot water supply proportional valve drive circuit 12 so that the amount of current supplied to the hot water supply gas proportional valve 55 becomes the adjusted current supply amount (I + i ₁ ). The hot water supply gas proportional valve 55 supplied with the adjusted energization amount (I + i ₁ ) from the hot water supply proportional valve drive circuit 12 is set to an opening degree corresponding to the adjusted energization amount (I + i ₁ ). Therefore, the gas burner for hot water supply
Even if there are variations in the components and load of the proportional valve drive circuit 12 for hot water supply, the fuel gas supplied to 22 can obtain a supply amount corresponding to the air volume input from the hot water supply air volume detection circuit 77. You can Therefore, the concentration of combustion air will not fall into a lean combustion state,
The hot-air supply fan 23 and the hot-water supply gas proportional valve 55 enable optimum air-twisting ratio control.

The adjustment of the energization amount of the heating gas proportional valve 59 is the same as the adjustment of the energization amount of the hot water supply gas proportional valve 55, and thus will be omitted.

Then, the volume 811 for adjusting the amount of water, the volumes 812 to 815 for adjusting the temperature, and the volumes 821 and 822 for adjusting the proportional valve.
Since they are concentrated in one place, the temperature adjusting volumes 812 to 815 are used by taking the opportunity to finely adjust the amount of water supplied to the hot water supply heat exchanger 24 by operating the water amount adjusting volume 811. Or volume 822 for proportional valve adjustment
Is operated to finely adjust the amount of water in the water supply pipe 41, finely adjust the first hot water supply temperature for hot water supply, finely adjust the second hot water supply temperature for hot water supply, finely adjust bath temperature, finely adjust hot water supply temperature for heating, or hot water supply. Fine adjustment of the amount of electricity supplied to the working gas proportional valve 55 or the heating gas proportional valve 59 can also be performed at the same time.

For this reason, the more the adjustment volume increases, the easier it becomes to adjust the input value or output value of the parts.Moreover, since multiple adjustment volumes are arranged in one place, the CPU8 and the water volume adjustment Volume 811, temperature adjusting volumes 812-815 and proportional valve adjusting volume 82
It is also very easy to route the connection wiring that electrically connects the 1 and 822.

Further, the input adjustment volume group 81 including the respective detection circuits 71 to 78 including the water volume detection circuit 74 and the water volume adjustment volume 811.
Are provided separately, and each drive circuit 11, 1
Since 2, 14, 15 and the output adjusting volume group 82 are provided separately, the CPU 8 and the respective detection circuits 71 to 78 including the water amount detecting circuit 74, and the input adjusting volume group including the water amount adjusting volume 811. It is easier to route the connection wiring electrically connected to 81, and to route the connection wiring electrically connected to the CPU 8 and the drive circuits 11, 12, 14, 15 and the output adjusting volume group 82.

[Modification]

In this embodiment, a gas proportional valve for adjusting the supply amount of gaseous fuel such as fuel gas is used as the proportional valve, but a liquid fuel proportional valve for adjusting the supply amount of liquid fuel such as kerosene may be used as the proportional valve. good.

In this embodiment, one CPU changes the energization amount to the hot water supply gas proportional valve and the energization amount to the heating gas proportional valve.
A plurality of CPUs may change the energization amount to the hot water supply gas proportional valve and the energization amount to the heating gas proportional valve, respectively. Even when a plurality of CPUs are used, the adjusting volumes connected to the respective CPUs may be provided in the vicinity.

In this embodiment, the water volume adjusting volume and the hot water supply first
The temperature adjustment volume for the hot water temperature, the second hot water temperature for hot water supply, the bath temperature, and the hot water temperature for heating and the proportional valve adjustment volume were centrally arranged in one place. It suffices that the proportional valve adjusting volume is arranged in the vicinity of any one of the adjusting volumes of the first hot water temperature, the second hot water supply hot water temperature, the bath temperature, and the hot water hot water temperature. Also, the adjustment volume is not limited to the water volume adjustment volume and temperature adjustment volume, but also the input values such as the adjustment volume for adjusting the incoming water temperature or the air twist ratio adjustment volume for adjusting the air twist ratio, and the blower's Volume for adjusting air flow, volume for adjusting to adjust the control state of fluid control valves such as governor type water flow control valve or bypass control valve, rotary electric machine such as pump or electric motor, output of heating element or light emitting element It may be used as a value adjusting volume.

As the adjusting volume, various types such as a one-turn type and a linear sliding type can be used.

[Brief description of drawings]

FIG. 1 is a block diagram showing an adjusting device for a heating-boiled hot water supply system adopting an embodiment of the present invention, and FIG. 2 is a block diagram showing an adjusting device for a heating-additional hot water supply device adopting an embodiment of the present invention. FIG. 3 is a schematic diagram showing a water amount adjusting volume, FIGS. 4 to 7 are schematic diagrams showing a temperature adjusting volume, and FIGS. 8 and 9 are schematic showing proportional valve adjusting volume. It is a figure. FIG. 10 is a graph showing the operation amount of the water volume adjusting volume and the increase / decrease amount of the water amount, and FIG. 11 is a graph showing the operation amount of the temperature adjusting volume and the increase / decrease temperature.
FIG. 12 is a graph showing the operation amount of the proportional valve adjusting volume and the increase / decrease amount of the energization amount. FIG. 13 is a flow chart for explaining the water volume adjustment of the CPU adjustment function, and FIG. 14 is the CPU
FIG. 15 is a flowchart for explaining the temperature adjustment of the heated hot water temperature of the adjusting function, and FIG. 15 is a flowchart for explaining the energization amount adjustment of the hot water supply gas proportional valve of the CPU adjusting function. In the figure, 1 ... Adjusting device for heating-additional hot water supply device (flow rate adjusting device for flow rate sensor), 6 ... Control circuit, 8 ... Microcomputer (control means), 14 ... Water amount detecting circuit (flow rate sensor), 81
… Volume group for input adjustment, 82… Volume group for output adjustment, 83… Adjustment function, 84… Control function, 704… Water volume counter (flow rate sensor), 811… Volume for water volume adjustment (flow rate adjustment volume), 812, 813 , 814, 815… Volume for adjusting temperature, 821, 822… Volume for adjusting proportional valve

Claims (1)

[Claims] 1. A heater for heating water passing through a heat exchanger; (b) a water quantity counter provided in a water supply pipe for supplying water to the heat exchanger; and a count number of the water quantity counter. A flow rate sensor comprising a water amount detection circuit for detecting the amount of water in the water supply pipe, and (c) a flow rate adjusting device for outputting an operation value according to a manually operated position in the vicinity of an adjusting volume of a part different from the flow rate sensor. A control value having a volume and corresponding to an input value from the water amount detection circuit is calculated, and an operation value of the flow rate adjusting volume is calculated by comparing an operation value from the flow rate adjusting volume with a reference value. A control means for controlling the operating state of the heater based on the adjusted water amount obtained by this adjusting function, and having an adjusting function for obtaining the adjusted water amount from the detected value obtained by calculation and the operation amount. Flow control device of the example was the flow rate sensor.