JPH02226404A - Flow rate adjustment device for flow rate sensor - Google Patents

Abstract

PURPOSE:To adjust a flow rate inputted from a flow rate sensor to meet the actual flow rate by giving an adjustment function which adjusts the flow rate inputted from the flow rate sensor in accordance with the manipulation of a potentiometer for adjusting the flow rate. CONSTITUTION:When the flow rate sensor 704 detects the flow rate in a room or a liquid path, a control means 8 changes an operation state in accordance with the change of the flow rate inputted from the flow rate sensor 704 by the flow rate sensor 704 installed in the room or in the liquid path where liquid passes through an internal part. A potentiometer for adjusting the flow rate 811 is installed near the adjustment potentiometer 81. Thus, the input value and the output value of parts except for the flow rate sensor 704 can easily be adjusted together with adjustment of input flow from the sensor 704. Furthermore, the adjustment work of the input value and the output value of the parts is facilitated as the number of the potentiometers 81 increases near the potentiometer 811. Also, simple layout of wiring is facilitated to connect the control means 8, the potentiometer 81 and the potentiometer 811.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a flow rate sensor flow rate adjusting device for adjusting the flow rate of a flow rate sensor.

[Prior art] In general, a flow sensor is used to detect water, oil, or
A flow rate counter that oscillates pulses corresponding to the number of rotations (number of counts) of an impeller that rotates using fluid pressure to measure the flow rate of fluid such as fuel or air, and a flow rate that detects the flow rate of the fluid based on the number of pulses from the flow rate counter. It consists of a detection circuit.

Further, the microcomputer changes the operating state of, for example, a heating device, a cooling device, a combustor, etc., depending on a change in a flow rate signal input from a flow rate detection circuit.

However, the flow rate signal input to the microcomputer may not represent the actual flow rate of the fluid in the fluid passage due to variations in components or loads of the flow rate counter or flow rate detection circuit. In this way, when the actual flow rate of the fluid in the fluid passage cannot be obtained, the operating state is changed according to the flow rate signal that is different from the actual flow rate input by the microcomputer, and the operation status is changed according to the actual flow rate. There is a disadvantage that it is not possible to obtain a stable operating state.

For this reason, conventionally, the flow rate of fluid has been adjusted by manually operating a flow rate adjustment volume built into a flow rate detection circuit.

Here, for example, conventionally, in the case of a gas-fired hot water combustor, a water flow sensor is used to adjust the amount of water input from a water flow sensor that is equipped with a water flow counter that detects the flow of water into the heat exchanger and a water flow detection circuit. A water M'A adjustment volume is built into the water volume detection circuit, and a volume for adjusting the output values of gas proportional valves, blowers, etc. whose operation status is controlled by a microcomputer according to the water volume is also built into the drive circuit. Ta.

[Problems to be solved by the invention] However, in the conventional gas-fired hot water supply combustor,
The hot water temperature input from the water flow sensor is X! When the output value needs to be adjusted at the same time, if the water flow detection circuit and drive circuit are installed in separate locations, the adjustment of the hot water temperature and the output value of the control means must be performed separately. I had to. In addition, in the case of a type in which the water amount detection circuit and drive circuit are housed in a housing to protect the water amount detection circuit and drive circuit, the lid of the housing must be opened and closed every time the adjustment volume is operated. Therefore, as the number of adjustment volumes increases, there is a problem in that the A adjustment process takes too much time and effort.

Therefore, if the water flow detection circuit and drive circuit are installed close together and the adjustment volumes are installed near each other, it is necessary to route the wiring connecting the water flow counter and the water flow detection circuit, as well as the gas proportional valve and blower. There was a problem in that the routing of the wiring connecting the drive circuit and the drive circuit was complicated.

The present invention enables the adjustment of the input value or output value of components other than the flow rate sensor at the same time as adjusting the flow rate input from the flow rate sensor, and facilitates the routing of connection wiring. The purpose is to provide a sensor flow rate adjustment device.

[Means for Solving the Problems] A flow rate adjustment device for a flow rate sensor according to the present invention includes a flow rate sensor that detects the flow rate of a fluid, an adjustment volume, and an operating state that is adjusted in response to a change in the flow rate input from the flow rate sensor. The control means has a manually operated flow rate A transfer volume in the vicinity of the adjustment volume, and receives an input from the flow rate sensor according to the operation amount of the flow adjustment volume. A configuration with an adjustment function to adjust the flow rate was adopted.

[Function] The flow rate adjustment device for a flow rate sensor of the present invention has the following functions.

When the flow rate in the room or in the fluid passage is detected by a flow rate sensor installed in the room or in the driftwood passage through which the fluid passes, the control means controls the operating state in response to a change in the flow rate input from the flow rate sensor. change.

In addition, by providing a flow rate adjustment volume near the adjustment volume, the opportunity to adjust the flow rate input from the flow rate sensor can be used to adjust the input and output values of components other than the flow rate sensor. It can be done easily. In addition, by providing the flow rate adjustment volume near the adjustment volume, the more the number of adjustment volumes increases, the easier the adjustment work for the input and output values of the components becomes. It also becomes easier to route wiring for electrically connecting the flow rate A transfer volume.

[Effects of the Invention] The flow rate 'A adjustment device for the flow rate sensor of the present invention adjusts the flow rate inputted from the flow rate sensor to almost the actual flow rate in the control means.
A can be adjusted. In addition, by using the opportunity to adjust the flow rate input from the flow rate sensor, it is possible to easily adjust the input values and output values of components other than the flow 1 sensor. It also becomes easier to route wiring that electrically connects the value adjustment volume and the flow rate adjustment volume.

[Embodiment] Next, a flow rate adjusting device for a flow rate sensor according to the present invention will be explained based on an embodiment shown in FIGS. 1 to 15. FIG. 1 and FIG. 2 show an adjustment device for a reheating hot water supply device with heating, which employs the present invention.

Reference numeral 1 shows an adjustment device for a reheating hot water supply device with heating, which is capable of supplying hot water to the bath and kitchen, reheating the bath, and heating the room.

The adjustment device 1 of the reheating hot water supply device with heating includes a gas combustion type hot water supply combustor 2, a gas combustion type heating combustor 3, a water supply pipe 4,
A gas supply pipe 5 and a control circuit 6 are provided as a gas supply path.

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

The hot water supply gas bar 22 is a forced air type 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. The generated combustion gas is discharged to the outside of the combustion case 21 from the exhaust port 25. This gas burner 22 for hot water supply is equipped with a sparker 26 for hot water supply as an ignition means, a frame rod 701 for hot water supply for detecting a flame, and a thermocouple for hot water supply 702 for detecting an air-fuel ratio, in the vicinity thereof. The hot water supply blower 23 is an electric fan that generates an air flow within the combustion case 21 toward the hot water supply gas burner 22 when energized. The hot water supply heat exchanger 24 heats the water flowing through the water supply pipe 4 using the flame generated by the hot water supply gas burner 22 and the heat contained in the combustion gas.

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.
6 The heating gas burner 32 is a forced air type 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. The combustion gas generated by combustion is discharged to the outside of the combustion case 31 from the exhaust port 35. A heating sparker 36 as an ignition means and a heating frame rod 703 for detecting flame are provided near the heating gas burner 32. The heating blower 33 is an electric fan that generates an air flow within the combustion case 31 toward the heating gas burner 32 when energized. The heating heat exchanger 34 heats the water flowing through the water supply pipe 4 using the flame generated by the heating gas burner 32 and the heat contained in the combustion gas.

The water supply pipe 4 is connected from upstream of a water supply pipe 41, a hot water supply pipe 42, a hot water supply pipe 43, and a hot water supply heat exchanger 24 to an expansion tank 44.
make-up water piping 45 for supplying water, a circulation circuit 46 for reheating the bath, a heating blower #147, and a heat exchanger 48 for the bath.
Equipped with:

A water supply pipe 41 connects a public water pipe to a hot water supply heat exchanger 24.
A governor-type water flow control valve 401, which is a pipe that supplies water to the water supply system, adjusts the amount of water supplied (water amount) by proportionally controlling the water pressure, and mixes water with hot water when the outlet temperature is higher than the set temperature. Bypass control valve 402 of
A water amount counter 104 that oscillates a pulse corresponding to the number of counts) and an incoming water temperature thermistor 705 as temperature detection means are provided.

The hot water supply pipe 42 is a pipe that supplies hot water from downstream of the hot water supply heat exchanger 24 to the kitchen, and includes a first hot water supply temperature thermistor 70 that detects the temperature of the water heated by the hot water supply heat exchanger 24.
6. A second hot water supply temperature thermistor 707 that detects the water temperature after heat exchange or the water temperature when water and hot water are mixed, and a water flow switch 708 for hot water supply that detects whether or not there is water flow in the hot water supply piping 42. Equipped with:

The hot water filling pipe 43 is a pipe that is branched from the hot water supply pipe 42 and supplies hot water to the °ζ bath, and is a vacuum pipe that connects the inside of the hot water filling pipe 43 with the atmosphere to prevent backflow of hot water when negative pressure is generated. It is equipped with a breaker 411 and check valves 412 and 413 that prevent backflow of hot water.

The hot water filling pipe 43 includes a hot water filling solenoid valve 403 that supplies hot water to the bath when energized, and an electric three-way valve 404 that switches between supplying hot water to the bath and reheating the bath.

The expansion tank 44 temporarily stores makeup water.

The make-up water piping 45 is a make-up water solenoid valve 40 that replenishes water to the expansion tank 44 when energized when the manual valve 49 is in an open state.
It is equipped with 5.

The bath reheating 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 bath water temperature, and a bath reheating circuit that pumps up hot water existing in the bath to reheat the bath. A bath circulation pump 406 is provided to circulate the inside of the heating circulation circuit 46.

The heating circulation circuit 47 includes a heating circulation pump 407 that pumps water existing in the expansion tank 44 to the heating heat exchanger 34.
, is equipped with a heating outlet hot water temperature thermistor 711 that detects the temperature of hot water heated by the heating heat exchanger 34.

The bath heat exchanger 48 reheats the hot water circulating in the bath reheating circulation circuit 46 using the hot water heated by the heating heat exchanger 34 that is supplied when the bath solenoid valve 408 is energized. 5 is a gas burner 2 for hot water supply from a public gas pipe.
2, and a heating gas pipe 52 that leads fuel gas from a public gas pipe to the heating gas burner 32.

The hot water supply gas pipe 51 has a hot water supply source solenoid valve 53 that opens when energized and supplies fuel gas to the hot water supply gas burner 22.
In addition, the gas pressure of the fuel gas passing through the hot water supply solenoid valve 54 and the hot water supply gas pipe 51 is controlled to control the hot water supply gas burner 22.
Gas proportional valve 5 for hot water supply that adjusts the supply of 1L of fuel gas to
5, and a hot water supply switching valve 56 that performs proportional control of the hot water supply gas proportional valve 55 in two stages.

The heating gas pipe 52 has a heating source solenoid valve 57 that opens when energized and supplies fuel gas to the heating gas burner 32.
and a heating solenoid valve 58 and a heating gas pipe 52
It has a heating gas proportional valve 59 that controls the gas pressure of the fuel gas passing through and adjusts the amount of fuel gas supplied to the hot water supply gas burner 22.

Next, the control circuit 6 of the adjustment device 1 for a reheating hot water supply device with heating according to the present invention will be explained based on FIGS. 1 to 15.

The control circuit 6 includes a detection device 7, a microcomputer (CPU) 8 as a 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, a heating drive circuit 14, a heating proportional valve drive circuit 15, and a second power supply circuit 16.

The detection device 1 includes a flame detection circuit 71 for hot water supply, an air-fuel ratio detection circuit 72, a flame detection circuit 73 for heating, a water quantity detection circuit 74, a temperature detection circuit 75 for hot water supply, a temperature detection circuit 76 for heating, and an air volume detection circuit 77 for hot water supply. , a heating air volume detection circuit 78 and a manual controller 79.

The hot water supply flame detection circuit 71 is connected to a hot water supply flame rod 701.
It is determined whether or not there is a flame in the hot water supply gas burner 22 from the signal input from the CPU 8, and the determination result is sent to the CPU 8. The air-fuel ratio detection circuit 72 detects the air-fuel ratio from the signal input from the hot water supply thermocouple 702, and converts the air-fuel ratio into CP.
Send to U8. The heating flame detection circuit 73 determines whether or not there is a flame in the heating gas burner 32 from the signal input from the heating flame rod 703, and transmits the determination result to the CP.
Send to U8.

The water amount detection circuit 74 integrates the number of pulses from the water amount counter 104 to detect the amount of water in the water supply pipe 41, and sends the amount of water to the CPUA.

Here, in the miscarriage sensor according to the present invention, the water amount detection circuit 7
The temperature detection circuit 75 for hot water supply, which is composed of 4 and a water quantity counter 704, detects the temperature from the inlet water temperature thermistor 705, the first outlet hot water temperature thermistor 106 for hot water supply, and the second outlet hot water temperature thermistor 707 for hot water supply. Temperature CP
Send to U8. The heating temperature detection circuit 76 detects the temperature from the bath temperature thermistor 710 and the heating hot water temperature thermistor 111, and sends the detected temperature to the CPU 8.

The hot water supply air volume detection circuit 77 detects the air volume of the hot water supply blower 23 from the hot water supply air volume sensor 712, and sends an electrical signal corresponding to the detected air volume to the CPU 8. The heating air volume detection circuit 78 connects the heating air volume sensor 713 to the heating air blower 33.
detects the wind 41 and sends an electrical signal corresponding to the amount of ffl to the CPU 8.

The manual controller 79 includes a hot water supply operation switch that switches between operation and stop of the hot water supply combustor 2, a temperature setting unit that sets the hot water temperature of the hot water supply combustor 2, an operation of the heating combustor 3,
Equipped with a heating operation switch for switching between operation and stop, a bath operation switch for switching between operating and stopping bath water filling, and a changeover switch for switching between hot bath water and reheating of the bath (none of which are shown). do.

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

As shown in FIGS. 3 to 7, the input adjustment volume group 81 includes a water m adjustment volume (a flow rate adjustment volume according to the present invention) that adjusts the amount of water in the water supply pipe 41.
811, a temperature adjustment volume 812 for adjusting the first hot water outlet temperature for hot water supply yQ, a temperature adjustment volume 813 for adjusting the second hot water outlet temperature for hot water supply, a temperature adjustment volume 814 for adjusting the bath temperature, and a temperature adjustment volume 814 for adjusting the hot water outlet temperature for heating. A temperature adjustment volume 815 is provided, and these are manually operated. As shown in FIGS. 8 and 9, the output adjustment volume group 82 supplies the proportional valve adjustment volume 821 that adjusts the amount of electricity supplied to the hot water supply gas proportional valve 55 and the heating gas proportional valve 59. A proportional valve adjustment volume 822 is provided to adjust the amount of current applied, and these are manually operated.

These adjustment volumes 811-815.821.8
22 are all arranged in one place near the CPU 8 and send the divided voltage value of the voltage (5■) to the CPU 8.

These adjustment volumes 811.~815.821.
Connected to 822 are a capacitor 801 for preventing noise generation and changing the operating speed, resistors 802 and 803 for reducing the voltage of electricity supplied from the first power supply circuit 9, and the like.

FIG. 10 shows a graph representing the operation amount of the water ffl adjustment volume 811 and the increase/decrease in water amount. FIG. 11 shows a graph representing the operation amount of the temperature adjustment volumes 812 to 815 and the temperature increase/decrease. FIG. 12 shows a graph representing the amount of operation of the proportional valve adjustment volume 821, 822 and the increase/decrease in the amount of energization.

The adjustment function 83 of the CPU 8 performs the three operations described above.

1) The regulator fjW83 calculates a detection (voltage) value according to the detected water amount from the water amount detection circuit 74. Further, the adjustment function 83 compares the partial pressure value from the water volume adjustment volume 811 and the detected value corresponding to the detected water volume to calculate the operation amount of the water IA water regulation volume 11.

Based on the graph of FIG. 10, the adjustment function 83
The detected water amount from the water amount detection circuit 74 is adjusted by 'A' in accordance with the calculated water rj and the operation amount of the adjustment volume 811.

Subsequently, the adjustment function 83 sends the adjusted amount of water to the control function 84.

2) The adjustment function 83 calculates a detection (voltage) value according to the detected temperature from the hot water supply temperature detection circuit 75 or the heating temperature detection circuit 76. Furthermore, the adjustment function 83 compares the partial pressure values from the temperature adjustment volumes 812 to 815 with the detected value corresponding to the detected temperature, and
2\815 operation amount is calculated. And adjustment function 83
Based on the graph of FIG. 11, the detected temperature from the hot water supply temperature detection circuit 75 or the heating temperature detection circuit 76 is adjusted in accordance with the calculated operation amount of the temperature adjustment volumes 812 to 815. Subsequently, the adjustment function 83 sends the adjusted temperature to the control function 84 .

3) The adjustment N function 83 performs detection (
voltage) value. Furthermore, the adjustment function 83 compares the partial pressure value from the proportional valve adjustment volume 821.822 with the detected value corresponding to the detected energization amount to calculate the operation amount of the proportional valve adjustment volume 821.822. Then, the adjustment function 83 supplies electricity to the hot water supply gas proportional valve 55 and the heating gas proportional valve 59 in accordance with the operation amount of the proportional valve adjustment volume 821 and 822 calculated based on the graph of FIG. Adjust amount. Subsequently, the adjustment function 83 sends an instruction to the control function 84 to supply the adjusted amount of energization to the hot water supply gas proportional valve 55 and the heating gas proportional valve 59.

The control function 84 of CPU A includes the detection device 7 and the adjustment function 8.
3. Control signals corresponding to various detected values, adjusted water volume, or adjusted temperature from the hot water supply water flow switch 708 and the bath water flow switch 709 are transmitted to the hot water supply switching circuit 10, the hot water supply drive circuit 11, the heating switching circuit 13, and the heating The signal is sent to the drive circuit 14 for use. The control function 84 is the adjustment function 8
An adjustment signal corresponding to the adjusted energization amount from 3 is sent to the hot water supply proportional valve drive circuit 12 and the heating proportional valve drive circuit 15.

The first power supply circuit 9 supplies electricity (
For example, 5V) is supplied.

The hot water supply switching circuit 10 starts operating upon receiving electricity from the second power supply circuit 16, and operates the hot water supply sparker 26, in response to a control signal from the control function 84 of the CPU 8.
The main solenoid valve 53 for hot water supply, the solenoid valve 54 for hot water supply, and the switching valve 56 for hot water supply are energized and de-energized.

The hot water supply drive circuit 11 starts operating when it receives electricity from the second power supply circuit 16, and the control function 84 of the CPU 8
The hot water supply blower 23, the governor type water flow control valve 401, and the bypass control valve 402 are turned on in response to a control signal from the hot water supply blower 23, the governor type water flow control valve 401, and the bypass control valve 402.
Performs variable control of the amount.

The hot water supply proportional valve drive circuit 12 starts operating upon receiving electricity from the second power supply circuit 16, and operates the hot water supply gas proportional valve 55 in response to an adjustment signal from the control function 84 of the CPU 8.
Performs variable control of the amount of current applied.

The heating switching circuit 13 starts operating when it receives electricity from the second power supply circuit 16, and operates the heating sparker 36, in response to a control signal from the control function 84 of the CPU 8.
Energizing the heating main solenoid valve 57, the heating solenoid valve 58, the hot water filling solenoid valve 403, the electric three-way valve 404, the make-up water solenoid valve 405, the bath circulation pump 406, the heating circulation pump 407, and the bath solenoid valve 408. Turn off the power.

The heating drive circuit 14 starts operating when supplied with electricity from the second power supply circuit 16, and the control function 84 of the CPU 8
The amount of electricity supplied to the heating blower 33 is variably controlled in accordance with the control signal from the heating fan 33.

The heating proportional valve drive circuit 15 starts operating upon receiving electricity from the second power supply circuit 16, and operates the heating gas proportional valve 59 in response to an adjustment signal from the control function 84 of the CPU 8.
Performs variable control of the amount of current applied.

When any one of the hot water supply operation switch, heating operation switch, or bath operation switch of the manual controller 79 is turned on, the second power supply circuit 16 is connected to the hot water supply switching circuit 10, the hot water supply drive circuit 11, and the hot water supply proportional valve. The drive circuit 12, heating switching circuit 13, heating drive circuit 14, and heating proportional valve drive circuit 15 are electrically connected
2■).

The water amount adjustment of the adjustment function 83 of CPU A in this embodiment is performed first.
The explanation will be based on flowchart 1 in FIG.

First, it is determined whether or not the detected water amount is input from the water amount detection circuit 74 (step S1).
When it is determined that the detected water volume has not been input (NO),
Don't pray for water insight.

In step S1, when it is determined 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).

It is determined whether or not a partial pressure value is input from the water volume adjustment volume 811 (step S3), and it is determined that a partial pressure value is not input from the water volume adjustment volume 811 (N
o) Time, water] No adjustment.

In step S3, water M'A conditioning heavy volume 1
It was determined that the partial pressure value was input from (When Yes1, (
Determine whether the detected value: VO) = (partial pressure value input from the water volume adjustment volume 811) (Step S4
), V. When it is determined that =■, (Yes), water!
Return without making any adjustments.

In step S4, when it is determined that V, = V, is not determined (NO), (detected value: ■.) is compared with (partial pressure value input from water volume adjustment volume 811: ■,), and the operation amount is calculated (step S5).

It is determined whether the calculated manipulated variable is a positive manipulated variable (step 36). It was determined that the amount of operation was positive (Ye
s), the detected water amount input from the water amount detection circuit 74 is adjusted to the water amount adjustment volume 811 based on the graph of FIG.
(step S7)
, then return.

In step S6, when it is determined that the operation amount is not a positive amount (No), the detected water amount input from the water amount detection circuit 74 is adjusted to correspond to the negative operation amount of the water amount adjustment volume 811 based on the graph of FIG. (Step S8). Then return.

The temperature adjustment of the hot water temperature for heating in the CPU A adjustment v1 function 83 of this embodiment will be explained based on the flowchart of FIG. 14.

First, it is determined whether or not the detected temperature is input from the heating temperature detection circuit 76 (step 311).

When it is determined that the detected temperature has not been input from the heating temperature detection circuit 16 (NO), temperature adjustment is not performed.

In step S11, when it is determined that the detected temperature is input from the heating temperature detection circuit 76 (Yes), a detected (voltage) value corresponding to the input detected temperature is calculated (step 512).

It is determined whether a partial pressure value is input from the temperature adjustment volume 815 (step 513). It was determined that the partial pressure value was not input from the temperature adjustment volume 815 (
NO), temperature adjustment is not performed.

In step S13, the temperature adjustment volume 815
When it is determined that the partial pressure value is being input from (Yes), (
Determine whether detected value: VO) = (partial pressure value input from temperature adjustment volume 815: Vl) (Step S1
4〉. When it is determined that V, = V1 (Yes), the process returns without performing temperature adjustment.

In step S14, if you want to judge that it is not V o −V + (NO), (the detected value corresponding to the detected temperature −■
. ) and (partial pressure value input from the temperature adjustment volume 815: ■) to calculate the manipulated variable (Step 5
15).

It is determined whether the calculated operation amount is a positive operation amount (step 516), and it is determined that it is the operation amount of the glass (Y
es), the detected temperature input from the heating temperature detection circuit 16 is adjusted in accordance with the positive operation amount of the temperature adjustment volume 815 based on the graph of FIG. 11 (step 517). Then return.

In step SIG, when it is determined that the operation amount is not a positive operation amount (NO), the detected temperature input from the heating temperature detection circuit 76 is converted into a negative operation amount of the temperature adjustment volume 815 based on the graph of FIG. (step 318), and then returns.

The temperature adjustment of the first hot water outlet temperature for hot water supply, the second outlet hot water temperature for hot water supply, and the bath temperature by the adjustment function 83 is the same as the temperature adjustment of the hot water outlet temperature for heating shown in the flowchart of FIG. 14, and will therefore be omitted.

The energization M adjustment of the hot water supply gas proportional valve 55 of the adjustment function 83 of the CPU 8 of this embodiment will be explained based on the flowchart 1- in FIG.

First, from the hot water supply air flow detection circuit 77 to the hot water supply blower 23
It is determined whether the detected air volume has been input (step 521). From the hot water supply air volume detection circuit 77 to the hot water supply blower 2
When it is determined that the detected air volume in step 3 has not been input (NO),
Do not adjust the energization amount.

In step S21, it is determined that the air volume of the hot water supply blower 23 is being input from the hot water supply landscape detection circuit 77 (Y
es), a detected (voltage) value corresponding to the input detected air volume is calculated (step 522).

It is determined whether a partial pressure value is input from the proportional valve adjustment volume 821 (step 523). When it is determined that the partial pressure value has not been input from the proportional valve adjustment volume 821 (No), the energization TJ and adjustment are not performed.In step S23, the proportional valve adjustment volume 82
When it is determined that the partial pressure value is input from 1 (Yes),
It is determined whether (detected value: VO)=(partial pressure value input from proportional valve adjustment volume 821: ■1) (step 524). It was determined that Vo=V (when Yesj,
Return without adjusting the energization amount.

In step S24, when it is determined that Vo=V is not true (No), (detected value: Vo) is compared with (partial pressure value 2V□ input from proportional valve adjustment volume 821) and the operation amount is determined. Calculate (step 825).

It is determined whether the calculated manipulated variable is a positive manipulated variable (step 826). It was determined that the amount of operation was positive (Y
(step 52
7), then return.

In step S26, if it is determined that the operation amount is not positive (NO), the hot water supply gas is supplied to the proportional valve 55 in accordance with the negative operation amount of the proportional valve adjustment volume 821 based on the graph of FIG. The amount of current to be applied is adjusted (step 828), and then the process returns.

The adjustment of the energization amount of the heating gas proportional valve 59 of the adjustment function 83 is as follows:
Since this is the same as the adjustment of the amount of electricity supplied to the hot water supply gas proportional valve 55 shown in the flowchart ① of FIG. 15, the explanation will be omitted.

The operation of this embodiment will be explained based on FIGS. 1 to 12.

(2) Adjustment of the amount of water in the water supply pipe 41 When the water amount adjustment volume 811 is manually operated to increase the resistance value, the adjustment function 83 of the CPU A is activated.
Sends the partial pressure value according to the operating position to. The adjustment function 83 of the CPU 8 derives a positive operation amount from the detection position of the water volume adjustment volume 811 based on the comparison result between the partial pressure value from the water volume adjustment volume 811 and the detected value. And C
The adjustment function 83 of the PU 8 adjusts the detected water amount (Q) input from the water amount detection circuit 74 to the adjustment water M (Q+qt). Furthermore, the adjustment 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 i11 water adjustment ffl<Q+q1).

Here, ql is the amount of increase in water amount corresponding to the positive operation amount of the water amount adjustment volume 811 derived from the graph of FIG.

When the water tag volume 811 is manually operated to the side that decreases the resistance value, the adjustment function 83 of the CPU A is activated.
Sends the partial pressure value according to the operating position to. CPU8 adjustment fi
The function 83 adjusts the water volume adjustment volume 811 based on the comparison result between the partial pressure value from the water volume adjustment volume 811 and the detected value.
The adjustment function 83 of the CPU 8 adjusts the detected water amount (Q) inputted from the water amount detection circuit 74 to the adjusted water amount (Q-92). Further, the adjustment 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 using this adjusted water amount (Q-q2).

Here, q2 is the amount of decrease in water amount corresponding to the negative operation amount of the water amount adjustment volume 811 derived from the graph of FIG.

■ Temperature adjustment of hot water temperature for heating When the temperature adjustment volume 815 is manually operated to increase the resistance value, the adjustment function 83 of the CPU 8
Sends the partial pressure value according to the operating position to. The adjustment function 83 of the CPU 8 derives a positive operation amount from the detection position of the temperature adjustment volume 815 from the comparison result between the partial pressure value from the temperature adjustment volume 815 and the detected value, and
The adjustment function 83 of the PU 8 converts the detected temperature (1゛) input from the heating temperature detection circuit 76 into an adjusted temperature ('r2+t1
). Furthermore, the adjustment function 83 of the CPU 8 is
The control function 84 is controlled to control the combustion state of the hot water supply combustor 2 based on this adjusted temperature (T±11).

Here, 11 is the increased temperature corresponding to the positive operation amount of the temperature adjustment volume 815 derived from the graph of FIG.

When the temperature adjustment volume 815 is manually operated to decrease the resistance value, the adjustment function 83 of the CPU 8 is activated.
Sends the partial pressure value according to the operating position to. The adjustment function 83 of the CPU 8 derives a negative operation amount from the detection position of the temperature adjustment volume 815 based on the comparison result between the partial pressure value from the temperature adjustment volume 815 and the detected value. and,
Adjustment of CPU 8 M! i function 83 is water amount detection diagram ii! 8
The detected temperature (]゛) input from 74 is adjusted to the adjusted temperature (T・-
Adjust to >. Further, the adjustment function 83 of the CPU 8 controls the control function 84 so as to control the combustion state of the heating combustor 3 based on this adjustment temperature (go 1; 2).

Here, t2 is the temperature decrease corresponding to the negative operation amount of the temperature adjustment volume 815 derived from the graph of FIG.

The temperature adjustment of the first hot water outlet temperature for hot water supply, the second hot water outlet temperature for hot water supply, and the bath temperature is the same as the temperature adjustment of the hot water outlet temperature for heating, and the explanation is omitted.

(2) Adjustment of energization amount of hot water supply gas proportional valve 55 When the proportional valve adjustment volume 821 is manually operated to increase the resistance value, it sends a partial pressure value to the adjustment function 83 of CPU A according to the operation position. send. The adjustment function 83 of the CPU 8 derives a positive operation ff: amount from the detection position of the proportional valve adjustment volume 821 based on the comparison result between the partial pressure value from the proportional valve adjustment volume 821 and the detected value. Also, CPU
The adjustment function 83 of No. 8 calculates the energization ff1(I) to be supplied to the hot water supply gas proportional valve 55 corresponding to the air volume ζ inputted from the hot water supply landscape detection circuit 77.

Then, the adjuster #1-83 of the CPU 8 adjusts the calculated energization amount (I) to the adjusted energization Ji (I+i+).

Furthermore, the adjustment function 83 of CPU A sends a signal to the control function 84 to control according to this adjusted energization amount (L+L).

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

At this time, the control function 84 sends a control signal to the proportional valve drive circuit 12 for hot water supply so that the amount of current supplied to the gas proportional valve 55 for hot water supply becomes the adjusted amount of current (Ll-L). and,
Adjusted energization amount (I+i1) from the hot water supply proportional valve drive circuit 12
The hot water supply gas proportional valve 55 supplied with
The opening degree is set according to (I+xt). Therefore, the fuel gas supplied to the hot water supply gas burner 22 corresponds to the air volume input from the hot water supply scenery detection circuit 77 even if there are variations in the components or load of the hot water supply proportional valve drive circuit 12. The amount of supply can be obtained. Therefore, the hot water supply blower 23 and the hot water supply gas proportional valve 55 prevent the fuel gas concentration from falling into a lean combustion state, so that I&appropriate air-fuel ratio control can be performed.

When the proportional valve adjustment volume 821 is manually operated to decrease the resistance value, the adjustment function 8 of the CPU 8 is activated.
Send the partial pressure value according to the operating position to 3. The adjustment function 83 of the CPU 8 derives a negative operation amount from the detected position of the proportional valve adjustment volume 821 based on the comparison result between the partial pressure value from the proportional valve y1 adjustment volume 821 and the detected value.

Further, the adjustment function 83 of the CPU a calculates the amount of current (I) to be supplied to the gas proportional valve 55 for hot water supply corresponding to the air volume input from the air volume detection circuit 77 for hot water supply.

Then, the adjustment function 83 of the CPU 8 adjusts the calculated energization amount (I) to the adjusted energization amount (I-12).

Further, the adjustment function 83 of the CPU 8 sends a signal to the control function 84 to control the adjusted energization amount (I-it).

Here, 12 is the amount of decrease in the energization amount corresponding to the negative operation amount of the proportional valve adjustment volume 821 derived from the graph of FIG.

At this time, the control function 84 sends a control signal to the proportional valve drive circuit 12 for hot water supply so that the amount of energization supplied to the gas proportional valve 55 for hot water supply becomes the adjusted amount of energization (I-i,). Then, the adjustment energization ff is applied from the hot water supply proportional valve drive circuit 12.
1 (T-it) is supplied to the hot water supply gas proportional valve 55,
The degree of opening is set according to the adjustment energization t(I·−1t). Therefore, the fuel gas supplied to the hot water supply gas burner 22 is controlled by the hot water supply air volume detection circuit 7 even if there are variations in the components or load of the hot water supply proportional valve drive circuit 12.
It is possible to obtain the supply amount corresponding to the air amount inputted from 7. Therefore, since the concentration of combustion air does not fall into a low combustion state, the hot water supply air 812
3 and the hot water supply gas proportional valve 55, optimal air-fuel ratio control can be performed.

The amount of energization of the heating gas proportional valve 59 is adjusted by the energization 31L' of the hot water supply gas proportional valve 55? It is omitted because it is the same as A adjustment.

Since the water volume "A adjustment volume 811, temperature adjustment volumes 812 to 815, and proportional valve adjustment volumes 821 and 822 are arranged in one place,
Taking advantage of the opportunity to adjust the amount of water supplied to the hot water heat exchanger 24 by operating the water volume adjustment volume 811, the temperature adjustment volumes 812 to 815 or the proportional valve adjustment volume 822 are operated to 41, adjustment of the first hot water outlet temperature for hot water supply, adjustment of the second outlet hot water temperature for hot water supply, adjustment of the bath temperature, adjustment of the outlet hot water temperature for heating, or the gas proportional valve 55 for hot water supply or the gas proportional valve 59 for heating.
The amount of current supplied to the parts can be adjusted at the same time.8 Therefore, the more the adjustment volume increases, the easier it becomes to adjust the input or output value of the component. Since they are centrally arranged, it is very easy to route the wiring that electrically connects the CPU 8 to the water volume adjustment volume 811, the temperature adjustment volumes 812 to 815, and the proportional valve adjustment volumes 821 and 822. .

[Other Examples] In this example, a gas proportional valve that adjusts the supply amount of gaseous fuel such as fuel gas was used as the proportional valve, but a liquid fuel proportional valve that adjusts the supply amount of liquid fuel was used as the proportional valve. A fluid proportional valve that adjusts the supply amount of fluid such as air, water, or oil for operating hydraulic equipment may be used as the proportional valve.

In this embodiment, one CPU changes the amount of electricity applied to the hot water supply gas proportional valve and the amount of electricity applied to the heating gas proportional valve.
The amount of electricity applied to the hot water supply gas proportional valve and the amount of electricity applied to the heating gas proportional valve may be respectively changed by a plurality of CPUs. Even when a plurality of CPUs are used, adjustment volumes connected to the respective CPUs may be provided close to each other.

In this example, the volume for adjusting the wooden lid, the volume for adjusting the temperature of the first hot water outlet temperature for hot water supply, the second hot water outlet temperature for hot water supply, the bath temperature and the hot water outlet temperature for heating, and the volume for adjusting the proportional valve are concentrated in one place. However, the volume for adjusting the water amount, the volume for adjusting the temperature of the first hot water outlet temperature for hot water supply, the second outlet hot water temperature for hot water supply, the bath temperature, and the hot water outlet temperature for heating. It is sufficient if a proportional valve adjustment volume is disposed nearby. In addition, the adjustment volume is not only a water volume adjustment volume or a temperature adjustment volume, but also input values such as an adjustment volume for adjusting incoming water temperature or an air-fuel ratio adjustment volume for adjusting the air-fuel ratio,
Wind J to adjust the air volume of the blower! E adjustment volume, adjustment volume for adjusting the control state of fluid control valves such as governor-type water flow control valves or bypass control valves, volume for adjusting the output value of rotating electric machines such as pumps or electric motors, heating elements or light emitters, etc. C is also good when used as

In this embodiment, the flow rate sensor is composed of a water volume detection circuit and a water volume counter, but the flow rate sensor may also be composed of only a fishery counter, or an element that converts the flow rate of fluid such as liquid or gas into an electrical signal. There are various types available.

Further, as the adjustment volume, one rotation can be used in various ways, such as a linear sliding type.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing an adjustment device for a reheating hot water supply system with heating, which employs an embodiment of the present invention, and Fig. 2 shows an adjustment device for a reheating hot water supply system with heating, which employs an embodiment of the present invention. Figure 3 is a schematic diagram showing the water i adjustment volume, Figures 4 to 7 are schematic diagrams showing the temperature A trust volume, and Figures 8 and 9 are the proportional valve adjustment volume. It is a schematic diagram. Fig. 10 is a graph showing the amount of water volume adjustment and the increase/decrease in water volume, Fig. 11 is a graph showing the operation amount of the temperature adjustment volume and the increase/decrease in temperature, and Fig. 12 is a graph showing the amount of operation of the volume for temperature adjustment and the increase/decrease in temperature. It is a graph showing the amount of operation and the increase/decrease in the amount of energization. Fig. 13 is a flowchart for explaining the water flow rate 'J4 adjustment of the CPU adjustment function, Fig. 14 is a flowchart for explaining the temperature adjustment of the heating outlet hot water temperature of the CPU adjustment function, and Fig. 15 is a flowchart for explaining the CPU adjustment function. It is a flowchart for explaining the energization amount adjustment of the gas proportional valve for hot water supply of a function. In the figure 1...'A arrangement of reheating water heater with heating; η (flow rate sensor flow f, adjustment device) 6... Control circuit 8...
- Microcomputer (control means) 74...Water amount detection circuit (flow rate sensor) 81...Input A adjustment volume group 82...Output adjustment volume group 83...Adjustment function 84...Control function 704 ...Water volume counter (
Flow rate sensor) 811... Volume for water flow adjustment (volume for flow rate adjustment) 812.813.814.815.
・Volume for temperature adjustment 821.822 ・Volume for proportional valve adjustment

Claims (1)

[Claims] 1) A flow rate sensor that detects the flow rate of a fluid, an adjustment volume, and a control means that changes an operating state in response to a change in the flow rate input from the flow rate sensor, the control means comprising: , a flow rate sensor having a manually operated flow rate adjustment volume in the vicinity of the adjustment volume, and having an adjustment function to adjust the flow rate input from the flow rate sensor according to the operation amount of the flow rate adjustment volume. Adjustment device.