JPH10274417A - Hot water heating system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to select either a two system method or a single system method to comply with desires from a user in a hot water heating system which executes heating by circulating hot water generated in a heat reservoir through a plurality of hot air heaters (for example, four sets of heaters) where two control systems are available. SOLUTION: Remote control devices 11A and 11B, which output a demand signal, are provided one by one for each control system in a main control device 10. There is provided an output selection unit which can select either a two system method which allows the demand signal transmitted from each of the remote control devices 11A and 11B to be sent to a control system which responds to each signal or a single system method which allows the demand signal from one remote control device 11A out of the two remote control devices 11A and 11B to be sent to both control systems.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot water heating system for heating by circulating hot water generated by a heat source unit to a plurality of radiators and having two control systems.

[0002]

2. Description of the Related Art Conventionally, as this type of hot water heating system, a two-system type hot water heating system in which request signals from two remote control devices are sent to corresponding control systems, or one of the remote control devices. Is transmitted to both control systems.

[0003]

However, the two-system hot water heating system is troublesome in that it is necessary to input a set temperature by operating a remote control device for each control system. In the system of the hot water heating system, there is an inconvenience that it is not possible to set different temperatures for each control system.

[0004] In view of the above circumstances, it is an object of the present invention to provide a hot water heating system that can select either a two-system system or a one-system system according to a user's request.

[0005]

That is, the present invention provides a heat source device for increasing the temperature of hot water flowing from a return pipe to a predetermined temperature and flowing the same to a forward pipe, and a heat source unit between the forward pipe and the return pipe. A plurality of radiators connected to the radiator; a main controller that controls hot water to circulate between the heat source device and each of the radiators; and a flow rate of hot water circulated and supplied to each of the radiators. In the hot water heating system provided with a hot water flow controller for controlling the radiator, the radiator is classified into two control systems, and a remote control device that outputs a request signal to the main control device is provided for each of the control systems. A two-system system in which a request signal from each of the remote control devices is transmitted to a corresponding control system, and a request signal from one of the remote control devices is transmitted to both control systems. The one-system method that is sent Constituted by providing the output selecting unit can select a Zureka.

Further, the present invention is configured using a warm air heater as the radiator.

Further, the present invention is configured using a floor heater as the radiator.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic diagram showing one embodiment of a hot water heating system according to the present invention, FIG. 2 is a circuit configuration diagram of a flow control splitting device of the hot water heating system shown in FIG. 1, and FIG. 3 shows an example of an operation control program. FIG. 4 is a schematic diagram showing another embodiment of the hot water heating system according to the present invention.

A hot water heating system 1 according to the present invention is shown in FIG.
As shown in FIG. 2, the hot water type heat source unit 2 has four hot air heaters 7 (7A, 7B, 7C, 7D).
Are connected in parallel. That is, the heat pipe 2 and the return pipe 4 are connected to the heat source unit 2,
Each of the thermal valves 5 is attached. A hot air heater 7 is connected to each of the thermal valves 5 via a hot water outflow pipe 6, and a hot water return pipe 9 is connected to each of the hot air heaters 7. Further, these hot water return pipes 9 communicate with the return pipe 4. Here, all four warm air heaters 7 are installed in the same room, but are divided into two control systems in terms of control, and the warm air heaters 7A and 7C are arranged in the A system.
The warm air heaters 7B and 7D belong to the B system.

A main controller 10 is incorporated in the heat source unit 2, and two remote controllers 11A and 11B are provided in the main controller 10 so as to correspond to signal lines A and B, respectively. 12 are connected. Further, a flow control split device 19 is connected to the main control device 10 via two signal lines 14, and a signal line 13 is provided between the flow control split device 19 and each of the thermal valves 5. Wired.

By the way, the flow control dividing device 19 is the same as that shown in FIG.
, The input signal receiving unit 15, the output selecting unit 16,
There are two thermal valve drive delay circuits 17A and 17B and two thermal valve drive circuits 21A and 21B. The thermal valve drive delay circuit 17A and the thermal valve drive circuit 21A Valve drive delay circuit 17B and thermal valve drive circuit 2
1B corresponds to the B system. Further, the output selection unit 16 can select either the one-system system or the two-system system according to the situation of the room in which the warm air heater 7 is installed. Control device 11A
Is sent to both the A system and the B system,
When the system method is selected, the request signal from the remote control device 11A is sent to only the A system, and at the same time, the request signal from the remote control device 11B is sent to only the B system.

Since the hot water heating system 1 according to the present invention has the above-described configuration, when heating is performed using the hot water heating system 1, the output selection unit 16 of the flow rate control / division unit 19 uses the single system system or In the state where the two-system system is selected in advance, the user turns on the operation switch (not shown) of the heat source unit 2 and also controls the remote control devices 11A and 11A.
Operate B to input the set room temperature. In response to this, main controller 10 controls the operation of hot air heater 7 based on the operation control program PRG shown in FIG. 3, as described below.

First, in step S1 of the operation control program PRG, it is determined whether or not there are two input signals.
That is, if the request signal is input to the input signal receiving unit 15 from both the remote control devices 11A and 11B, it is determined that the input signal is of two systems, and otherwise (one of the remote control devices 11A and 11B). Only from input signal receiving unit 1
5 when a request signal is input to the remote control device 1
If no request signal is input to the input signal receiving unit 15 from any of 1A and 11B), it is determined that the input signal is not of two systems. As a result, when it is determined that there are two input signals, the process enters step S2 of the operation control program PRG, and the output selection selected by the output selection unit 16 is two.
It is determined whether the system is a system.

As a result, when it is determined that the output selection is not two systems (one system), the output selection is one system regardless of the two input signals, and the remote control device is left as it is. 11B becomes invalid, and B
Since the operation of the hot air heater 7 of the system cannot be controlled based on the request signal from the remote control device 11B, error processing is performed in step S3 of the operation control program PRG. After the valve output is turned off, the process returns to step S1 of the operation control program PRG. On the other hand, if it is determined that the output selection is of two systems, since both the input signal and the output selection are of two systems, step S5 of the operation control program PRG is executed.
To determine whether both inputs of the A system and the B system are ON.

As a result, when it is determined that both the inputs of the A-system and the B-system are ON, in step S6 of the operation control program PRG, the thermal valve outputs a and b are set to O.
After setting N, step S7 of the operation control program PRG
Then, the a and b system thermal valves are turned ON, a delay timer is set in step S8 of the operation control program PRG, and in step S9 of the operation control program PRG,
Wait for the delay timer to measure the predetermined time,
After entering step S10 of the operation control program PRG and turning on the thermal valve outputs c and d, the operation control program PRG
In step S11 of RG, the c and d system thermal valves are turned ON.

Then, the hot water heated to a predetermined temperature by the heat source unit 2 is supplied to each hot air heater 7 via the outflow pipe 3 and each hot water outflow pipe 6 and radiated there. By returning to the heat source device 2 via the return pipe 4 and repeating this circulation, the heating operation is performed in each warm air heater 7.

At this time, the main controller 10 appropriately controls the flow rate of the hot water supplied to the hot air heater 7A via the thermal valve drive circuit 21A based on the set room temperature input by the remote controller 11A. At the same time, the flow rate of the hot water supplied to the hot air heater 7C is appropriately controlled via the heat valve drive delay circuit 17A and the heat valve drive circuit 21A. Further, main controller 10 appropriately controls the flow rate of hot water supplied to hot air heater 7B via thermal valve drive circuit 21B based on the set room temperature input by remote controller 11B, and controls the temperature. The flow rate of the hot water supplied to the air heater 7D is appropriately controlled via the thermal valve drive delay circuit 17B and the thermal valve drive circuit 21B.

Therefore, the warm air heater 7A immediately starts a heating operation by blowing out warm air of a predetermined temperature (a temperature corresponding to the set room temperature input by the remote control device 11A), and at the same time, the warm air heater 7B Is a predetermined temperature (remote control device 11
A warm air of a temperature corresponding to the set room temperature input at B) is blown out to start the heating operation. And the hot air heater 7
At a point in time when a predetermined time has passed since A and 7B started the heating operation, the hot air heater 7C is set to the predetermined temperature (the remote control device 1).
At the same time as starting the heating operation by blowing out hot air (temperature corresponding to the set room temperature input at 1A), the hot air heater 7
D blows out hot air at a predetermined temperature (a temperature corresponding to the set room temperature input by the remote control device 11B) to start the heating operation. As described above, since the operation start of the warm air heaters 7C and 7D is delayed from the operation start of the warm air heaters 7A and 7B, the heating operation of the four warm air heaters 7 starts simultaneously. The evil can be eliminated.

The flow rate of the hot water to be supplied to each hot air heater 7 is determined by setting the corresponding thermal valve 5 to the flow control dividing device 19.
The amount of control is determined by the conduction time of 100 V (commercial power) from the heat source unit 2 to the flow control splitter 19 via each signal line 14. Therefore, even when there is a restriction on the relationship between the heat source unit 2 and the remote control device 11 or when the number of connections to the remote control device 11 when a plurality of outputs are input by one remote control device 11 is reduced, , Heat source device 2 and remote control device 1
Regardless of the type, the flow control to a plurality of hot air heaters 7 placed under one remote control device 11 can be unified.

Further, as a result of the determination in step S5 of the operation control program PRG, the inputs of both the A system and the B system are not ON (that is, at least one of the inputs of the A system and the B system is OFF). If it is determined that the input is ON, the process proceeds to step S12 of the operation control program PRG, and it is determined whether the input of the A system is ON.

As a result, when it is determined that the input of the system A is ON, after the thermal valve output a is turned ON in step S13 of the operation control program PRG, In step S14, the a-system thermal valve is turned ON, and in step S15 of the operation control program PRG, a delay timer is set. In step S16 of the operation control program PRG, the control waits for the delay timer to measure a predetermined time. After that, the process enters step S17 of the operation control program PRG, and sets the thermal valve output c to O
N, then step S1 of the operation control program PRG
At 8, the c-system thermal valve is turned ON.

Then, as described above, the remote control device 1
Although the heating operation is performed in the hot air heaters 7A and 7C based on the request signal from 1A, the operation start of the hot air heater 7C is delayed by a predetermined time from the operation start of the hot air heater 7A. In addition, it is possible to eliminate the adverse effects caused by the simultaneous start of the heating operation of the two hot air heaters 7A and 7C.

On the other hand, if it is determined in step S12 of the operation control program PRG that the input of the A system is not turned on (is turned off),
In step S19 of the operation control program PRG, B
It is determined whether the input of the system is ON. As a result, when it is determined that the input of the system B is not ON (it is OFF), the inputs of the system A and the system B are both OFF, and all the warm air heaters are set. Since the heating operation cannot be performed in step 7, the process returns to step S1 of the operation control program PRG. Conversely, B
If it is determined that the input of the system is ON,
After turning on the thermal valve output b in step S20 of the operation control program PRG, the b-system thermal valve is turned on in step S21 of the operation control program PRG,
In step S22 of the operation control program PRG, a delay timer is set. In step S23 of the operation control program PRG, after waiting for the delay timer to measure a predetermined time, step S2 of the operation control program PRG is performed.
4, after turning on the thermal valve output d, in step S25 of the operation control program PRG, the d-system thermal valve is turned on.
To

Then, as described above, the remote control device 1
Although the heating operation is performed in the warm air heaters 7B and 7D based on the request signal from 1B, the operation start of the warm air heater 7D is delayed by a predetermined time from the operation start of the warm air heater 7B. In addition, it is possible to eliminate the adverse effects caused by the simultaneous start of the heating operation of the two warm air heaters 7B and 7D.

If it is determined in step S1 of the operation control program PRG that the input signal is not of two systems, the process proceeds to step S26 of the operation control program PRG to determine whether the input signal is of one system. Determine whether or not. As a result, if it is determined that the input signal is not one system, the request signal has not been input from any of the remote control devices 11A and 11B, and the process returns to step S1 of the operation control program PRG. Conversely, when it is determined that the input signal is one system, the process proceeds to step S27 of the operation control program PRG, and determines whether the output selection is one system.

As a result, when it is determined that the output selection is not one system (two systems), the input signal is one system regardless of the two output selections. Since there is no request signal for operation control of one of the hot air heaters 7 of the B system, error processing is performed in step S28 of the operation control program PRG, and step S29 of the operation control program PRG is performed.
After turning off the thermal valve output, the process returns to step S1 of the operation control program PRG. On the other hand, when it is determined that the output selection is one system, the operation control program PRG
Is entered, and it is determined whether or not the input of the system A is ON.

As a result, if it is determined that the input of the A system is not turned on (is turned off),
Since the heating operation is disabled in the hot air heaters 7A and 7C of the system, the process returns to step S1 of the operation control program PRG. Conversely, when it is determined that the input of the A system is ON, after the thermal valve outputs a and b are turned on in step S6 of the operation control program PRG, the process proceeds to step S7 of the operation control program PRG. Then, while turning on the a and b system thermal valves, the operation control program PR
In step S8 of G, a delay timer is set, and in step S9 of the operation control program PRG, after waiting for the delay timer to measure a predetermined time, the process proceeds to step S10 of the operation control program PRG, and the thermal valve output is set. c, d
Is turned ON, in step S11 of the operation control program PRG, the c and d system thermal valves are turned ON.

Then, as described above, the remote control device 1
The heating operation is performed in all the warm air heaters 7 based on the request signal from 1A, but the operation start of the warm air heaters 7C and 7D is delayed by a predetermined time from the operation start of the warm air heaters 7A and 7B. Therefore, it is possible to eliminate the adverse effects caused by the simultaneous start of the heating operation of the four hot air heaters 7.

As described above, in the hot water heating system 1, the output selection unit 16 can select either the two-system system or the one-system system. Therefore, it is necessary to set different temperatures for each control system. In some cases, a two-system method is used, and when there is a strong demand to avoid the trouble associated with temperature setting, a single-system method can be used to meet the needs of the user.

In the heating operation using the hot water heating system 1, each control system (A system, B system)
, The remote control device 11 and the hot air heater 7 are in a one-to-two relationship, and only by operating the remote control device 11A, the two hot air heaters 7A and 7C start operating, and the remote control device 11B
By simply operating, the two warm air heaters 7B and 7D start operating. That is, while the number of the hot air heaters 7 is four, the number of the remote control devices 11 is sufficient, and the operability of the remote control devices 11 is improved by that much.

In the above embodiment, the hot water heating system 1 using the hot air heater 7 as the radiator has been described. However, as shown in FIG. 4, the floor heater 8 (8A, 8B) is used as the radiator. , 8C, 8D) can be applied to the hot water heating system 1 using the present invention.

[0033]

As described above, according to the present invention, a heat source unit which raises the temperature of hot water flowing from a return pipe to a predetermined temperature and discharges the same to a forward pipe, and a heat source unit between the forward pipe and the return pipe. A plurality of warm air heaters connected in parallel to each other, a radiator such as a floor heater, and a main controller for controlling hot water to circulate between the heat source device and each of the radiators; and In a hot water heating system including a hot water flow controller such as a heat valve that controls the flow rate of hot water circulated to the radiator to increase or decrease, the radiator is classified into two control systems, and the main control is performed. One remote control device for outputting a request signal to the device is provided for each control system, and a request signal from each remote control device is sent to the corresponding control system.
Since the system is provided with an output selection unit that can select one of a system system and a system system in which a request signal from one of the remote control devices is transmitted to both control systems, Depending on the unit, it is possible to select either the two-system system or the one-system system, which is excellent in convenience.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing one embodiment of a hot water heating system according to the present invention.

FIG. 2 is a circuit configuration diagram of a flow control division device of the hot water heating system shown in FIG.

FIG. 3 is a flowchart illustrating an example of an operation control program.

FIG. 4 is a schematic diagram showing another embodiment of the hot water heating system according to the present invention.

[Explanation of symbols]

 1 hot water heating system 2 heat source unit 3 outgoing pipe 4 return pipe 5 hot water flow controller (thermal valve) 7 radiator (hot air heater) 8 radiator ( Floor heater) 10 Main controller 11 Remote controller

Claims (3)

[Claims] 1. A heat source device for increasing the temperature of hot water flowing from a return pipe to a predetermined temperature and flowing the same to a go pipe, and a plurality of radiators connected in parallel between the go pipe and the return pipe. A main controller that controls hot water to circulate between the heat source device and each of the radiators; and a hot water flow controller that controls the flow rate of hot water circulated to each of the radiators to increase or decrease. Wherein the radiator is classified into two control systems, and one remote control device for outputting a request signal to the main control device is provided for each of the control systems; Either a two-system system in which a request signal from a device is sent to a corresponding control system, or a one-system system in which a request signal from one of the remote control devices is sent to both control systems. Output selection section that can select A hot water heating system characterized by being provided. 2. The hot water heating system according to claim 1, wherein the radiator is a hot air heater. 3. The hot water heating system according to claim 1, wherein the radiator is a floor heater.