JPH02219945A - Hot water utilizing device - Google Patents

Abstract

PURPOSE:To provide an effective utilization of a hot water feeder and improve a heating function of each of terminal devices by a method wherein as a composing means of a changing-over means, a running hot water feeding mode automatic selection means to cause the upper-most hot water feeding mode of a set preference reference of the extracted hot water feeding modes is arranged. CONSTITUTION:A controller unit 10 is provided with a running hot water feeding mode automatic selection circuit 10A for extracting a request hot water feeding mode of operating terminal devices 2A and 2B in response to a starting of operation or a stopping of operation of each of the first and second terminal devices 2A and 2B and for performing the upper-most hot water feeding mode in the set preference reference of the extracted hot water feeding mode at the present apparatus 1. That is, if the first hot water feeding mode is specified (acknowledged) as a request hot water feeding mode of the first terminal device 2A under operations of the first and second switches 31A and 31B, only the first hot water feeding mode is extracted during a single operation of the first terminal device 2A, resulting in that a heating and hot water feeding operation under the first hot water feeding mode is carried out. In case of a simultaneous operation between the first terminal device 2A and the second terminal device 2B, a heating and hot water feeding operation under the first hot water feeding mode is carried out.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a hot water utilization device such as a hot water heating device. The present invention relates to a hot water utilization device that connects a plurality of terminal devices that perform a heating function using supplied hot water as a heat source heat medium, and is provided with a switching means for switching the hot water supply mode executed by the water heater.

[Conventional technology]

In the hot water utilization device as described above, since the water heater can only selectively execute a plurality of hot water supply modes, a switching means is required to switch the hot water supply mode to be executed by the water heater. Conventionally, this switching means is , a type in which one hot water supply mode is specified by default by a manual switching operation by the person installing the device.

Fig. 2 shows an example of a conventional type, in which the electrical equipment of the water heater (1) is equipped with a first switch that specifies the first hot water supply mode as a switching means.
A switch (Sl) and a second switch (S2) for specifying the second hot water supply mode are provided. In the state where the mode is specified, when at least one of the multiple terminal devices (2A), (2B) (for example, a heater or a dryer) connected to the water heater (1) becomes operational, any terminal device (2A) is connected to the water heater (1). ), (2B) is in operation or not, the water heater (1) executes hot water supply in the first hot water supply mode, and also turns the first switch (Sl) OFF,
In addition, when the second switch (S2) is turned on and the second hot water supply mode is specified, multiple terminals (2A), (2B
) is in operation, the water heater (1) will supply hot water in the second hot water supply mode regardless of which terminal device (2A, ) or (2B) is in operation. It has become.

[Problem to be solved by the invention] However, in the conventional type described above, for example, it is better to supply hot water to some of the multiple terminals in a hot water supply mode that is different from that of the other terminals. Even if there is a terminal device that can perform a more suitable heating function, the initial hot water supply mode specified by a manual switching operation will uniformly define the hot water supply mode for all terminal devices. However, in this respect, there was a drawback in that each terminal device could not sufficiently exhibit a more suitable heating function suited to the object to be heated.

Furthermore, even though the water heater itself has the ability to execute multiple hot water supply modes (albeit alternatively), if the water heater itself is initially set to only one hot water supply mode, the hot water supply The functions of the device were not being utilized effectively, resulting in waste in terms of device functionality.

An object of the present invention is to improve the heating functionality of the terminal equipment by effectively utilizing the functions of the water heater by improving the configuration of the switching means.

[Means to solve the problem]

The characteristic configuration of the hot water utilization device according to the present invention is that a water heater that selectively executes a plurality of hot water supply modes is connected to a plurality of terminal devices that function to heat the hot water supplied from the water heater as a heat source heat medium, and In a configuration in which a switching means for switching the hot water supply mode to be executed by the water heater is provided, the switching means includes means for recognizing the hot water supply mode requested by the terminal devices, and a means for starting and stopping the operation of each of the terminal devices. Accordingly, the requested hot water supply mode of the terminal device that is in operation is extracted, and 1. The present invention includes an automatic hot water supply mode selection means for causing the water heater to execute the hot water supply mode that is the highest according to the setting priority criteria among the extracted hot water supply modes, and its functions and effects are as follows.

[For production]

In other words, with the above configuration, even if a lower terminal device is operating with a lower hot water supply mode as the requested hot water supply mode according to the setting priority criteria, a higher terminal device with a higher hot water mode as the requested hot water supply mode is operating. If the water heater is in a stopped state, the water heater executes the hot water supply mode requested by its lower-level terminal, and as a result, the lower-level terminal receives hot water in the hot water supply mode as requested, thereby providing a suitable water supply suitable for the heating target. Can perform heating function.

〔Effect of the invention〕

That is, according to the present invention, although priority is given to the alternative selection of the hot water supply mode, the hot water supply mode to be executed is automatically set to suit the request from the terminal device as much as possible according to the operating status of the terminal device group. Because it can be switched, compared to the conventional model where the hot water supply mode is initially set to one,
By making full use of the functions of the water heater, it has become possible to greatly improve the heating functionality of the terminal unit (i.e., the ability to perform a suitable heating function suited to the object to be heated), and in turn, this technology The functionality and versatility of the Taneyu utilization device as a whole,
In addition, it has become possible to improve the compatibility with different types of heating targets compared to the conventional method.

〔Example〕

Next, an example will be explained.

Figure 1 shows the overall configuration of the hot water supply/heating system, where (1) is heavy equipment, and (2A) and (2B) are the first and second units that function as a heating source using hot water supplied from heavy equipment (1) as a heat source heat medium, respectively. and a second terminal.

Heavy equipment (1) has a primary internal equipment for general hot water supply.
A heat exchanger (3), a second heat exchanger (4) for heating and hot water supply, and a first burner (1) that heats the flowing water in the first heat exchanger (3).
5), a second heating the flowing water in the second heat exchanger (4);
Burner (6), first and second burners (5), (6)
Combustion air (secondary air) is distributed in parallel through the first and second air passages (7A) and (7B) to the first and second heat exchangers. (3),
(4), a fan (9) that forcibly exhausts the combustion gas that has passed through the exhaust passage (8), and a controller that controls the operation (
10), as well as a make-up water tank (11) and circulation pump (12) for heating and hot water supply.

(13) is a water supply waterway, and this water supply waterway (13) is a main water supply waterway (13) connected to the first heat exchanger (3) for general hot water supply.
A) and a make-up waterway (13B) connected to a make-up water tank (11) for heating and hot water supply, and a water governor (14) and a water flow sensor (15) connected to the main water supply waterway (13A). A makeup water solenoid valve (16) and a manual makeup water valve (17) are installed in the makeup waterway (13B).

(18) is a drain valve with a filter.

A hot water supply path (19) from the first heat exchanger (3) is connected to a general hot water tap (21) via an external hot water supply pipe (20), while the second heat exchanger (4) and each terminal Vessel (2A).

(2B) is connected by the hot water circulation path (22A), (22B) formed by the internal piping and external piping, and the return side hot water circulation path (2B) from the terminal unit (2A), (2B).
2B) is equipped with a makeup water tank (11) and a circulation pump (1).
2) is interposed.

(23) is a fuel gas supply path, and this fuel gas supply path (23) is connected to a first fuel path (23A) connected to a first burner (5) for general hot water supply, and a second burner for heating hot water supply. (6
) and a second fuel path (23B) that connects to first and second fuel solenoid valves (24A), (24B), and
First and second electromagnetic proportional valves (25A) that adjust fuel gas supply I to each burner (5), (6).

(25B) is inserted.

(26) is a safety solenoid valve that collectively cuts off the fuel gas supply to both burners (5) and (6).

In addition, (27) in the figure is the first heat exchanger (3) for general hot water supply.
) a first temperature sensor that detects the hot water temperature from (28);
is a second temperature sensor that detects the hot water temperature from the second heat exchanger (4) for heating and hot water supply;
9B) are the first burner (5) and the second burner (6), respectively.
First and second spark plugs for (30A), (
30B) are the first burner (5) and the second burner (6), respectively.
) are the first and second flame rods for confirming ignition.

The controller (lO) executes the following general hot water supply operation control and heating hot water supply operation control as basic operation control.

(General hot water supply operation control) When the general hot water tap (21) is opened, the water flow sensor (15) detects the water flow, and in response, the fan (9) is activated, and , the first spark plug (29A) is activated to spark, and the safety solenoid valve (29A) is activated.
6) and the first fuel solenoid valve (24A) is opened to ignite the first burner (5).

1st burner (5) by 1st flame rod (30A)
When ignition of the spark plug (29A) is confirmed, the spark operation of the first spark plug (29A) is stopped.

Based on the amount of water detected by the water amount sensor (15) and the set general hot water temperature, the fuel gas supply amount required to obtain the set general hot water temperature is calculated, and the fuel gas supply amount to the first burner (5) is adjusted accordingly. Calculate the fuel gas supply amount and the first
Adjust the opening of the electromagnetic proportional valve (25A). Thereafter, the first temperature sensor (27) is configured to maintain the hot water supply temperature detected by the first temperature sensor (27) at the set general hot water temperature.
Based on the detection information of 7), the opening degree of the first electromagnetic proportional valve (25A) is finely adjusted as appropriate.

When the general hot water tap (21) is closed, in response to this, the water sensor (15) goes into a water flow non-detection state,
The safety solenoid valve (26) and the first fuel solenoid valve (24A) are closed to extinguish the first burner (5), and then the fan (9) is stopped.

(Heating and hot water supply operation control) When the operation of at least one of the terminal devices (2A) and (2B) is started, the circulation pump (12) is started in response to a signal from the terminal device whose operation has been started. The fan (9) is started, and then the second spark plug (29B) is activated to spark, and the safety solenoid valve (29B) is activated.
6) and the second fuel solenoid valve (24B) are opened to ignite the second burner (6).

2nd burner (6) by 2nd flame rod (30B)
When ignition of the spark plug (29B) is confirmed, the spark operation of the second spark plug (29B) is stopped.

Then, the second temperature sensor (28) maintains the hot water supply temperature detected by the second temperature sensor (28) at the set heating hot water temperature.
Based on the detection information of 28), the amount of fuel gas supplied to the second burner (6) is adjusted by adjusting the opening of the second electromagnetic proportional valve (25B).

In addition, if the hot water supply temperature detected by the second temperature sensor (28) remains higher than the set heating hot water supply temperature even if the opening degree of the second electromagnetic proportional valve (25B) is adjusted to the lower limit opening degree, in other words, the second electromagnetic proportional valve If the heating load on the terminals (2A) and (2B) becomes so small that it cannot be followed by adjusting the heating and hot water supply capacity by adjusting the opening of the valve (25B), the second fuel solenoid valve (24
Execute ON-OFF control of the second burner (6) by opening and closing B).

When the operation of both terminal devices (2A) and (2B) is stopped, the safety solenoid valve (26) and the second fuel solenoid valve (24B) are closed in response to the operation stop signal from the terminal device side. to extinguish the second burner (6), and then turn on the fan (9).
) and the circulation pump (12) are stopped.

General hot water supply operation and heating hot water supply operation can be performed in parallel, and when only one of the general hot water supply operation and heating hot water supply operation is being performed and the other operation is started,
The operation to open the safety solenoid valve (26) that is already in the open state and the operation to start the fan (9) that has already been started are omitted, and the general hot water supply operation and the heating hot water supply operation are performed in parallel. When stopping only one of the operations from the state where the safety solenoid valve (26) is closed, and
The operation to stop the fan (9) is omitted.

The controller (10) operates in the following first and second hot water supply modes in the heating hot water supply operation, namely (first hot water supply mode), a mode in which the set heating hot water supply temperature is set to a fixed high temperature value (e.g. 80'C), (second hot water supply mode), Hot water supply mode) In the mode in which the set heating hot water supply temperature is changed according to the heating load on the terminal device side, specifically, in the ON/OFF control of the terminal device by the terminal device side thermostat, 08 hours became longer than the set time. When the set heating hot water supply temperature is changed to the high temperature side by the set width (however, the upper limit temperature is the fixed high temperature value in the first hot water supply mode), on the other hand, when 08 hours is shorter than the set time, the set heating hot water supply temperature is changed to the higher temperature side by the set width. The mode is configured to selectively execute a mode in which the temperature is changed by the set width to the low temperature side.

Moreover, on the other hand, the first and second terminal devices (2A).

(2B) As a means for recognizing each requested hot water supply mode (in other words, the first and second terminals (2A), (2B) means for specifying each requested hot water supply mode), Four switches 1 to 4 (31A).

(31B), (32A), and (32B) are provided, and the first
and the second switch (31A), (31B) for the first terminal (2A), the first switch (31A)
) and turn off the second switch (31B).
By doing so, the first hot water supply mode is recognized as the requested hot water supply mode of the first terminal (2A), and the first and second hot water supply modes are
By reversing the ON/OFF relationship of the switches (31A) and (31B), the second hot water supply mode is recognized as the requested hot water mode of the first terminal (2A), and similarly, the third and 4th switch (32A), (3
2B)' for the second terminal (2B), by turning on the third switch (32A) and turning off the fourth switch (32B), the second terminal (2B)' is connected to the second terminal (2B).
The first hot water supply mode is recognized as the requested hot water supply mode in B), and the third and fourth switches (32A) and (32B)
By reversing the ON/OFF relationship, the second hot water supply mode is recognized as the required hot water supply mode of the second terminal (2B).

The controller (10) has first and second terminals (2
A), (2B) In response to the start and stop of each operation, extract the requested hot water supply mode of the terminal device (2A) and (2B) that are in operation, and set the hot water supply mode among the extracted hot water supply modes. An automatic hot water supply mode selection circuit (10A) is provided to cause the heavy equipment (1) to execute the hot water supply mode that ranks highest in the priority criteria.

In other words, the first and second switches (31A) set the first hot water supply mode as the requested hot water mode of the first terminal (2A), (
31B), and the second terminal (2B
) as the requested hot water supply mode by operating the third and fourth switches (32A) and (32B).
When the second terminal unit (2B) operates independently, only the first hot water supply mode is extracted, so heating hot water supply operation is performed in the first hot water supply mode, and when the second terminal (2B) operates independently, only the second hot water supply mode is extracted. Therefore, the heating hot water supply operation is performed in the second hot water supply mode. On the other hand, when the first terminal unit (2A) and the second terminal unit (2B) are operated simultaneously, the first hot water supply mode and the second hot water supply mode are operated. is extracted, whereas the heating hot water supply operation is performed in the hot water supply mode that is higher in the set priority criteria among the two extracted hot water supply modes.

In this example, since the first hot water supply mode, which requires a fixed high temperature hot water supply temperature, is set higher than the second hot water supply mode as a setting priority standard, the first terminal (2A)
When the terminal device (2B) and the second terminal device (2B) are operated simultaneously, the heating hot water supply operation is performed in the first hot water supply mode.

[Another example]

Next, another example will be listed.

(a) The number of types of hot water supply modes that the water heater (heavy equipment (1)) alternatively executes may be three or more.

(b) The number of terminal devices may be three or more, and in that case, the water heater may be made to recognize three or more requested hot water supply modes as selection targets.

(c) Extraction "The setting priority criterion, which is the criterion for selecting one of the hot water supply modes, may be determined as appropriate.

(d) The terminal device is not limited to a heater, and its heating function may be of any form, such as a fluid or an article.

(E) The water heater (heavy equipment (1)) may also have hot water supply functions for other purposes such as general hot water supply, or may be dedicated to a terminal device, and the specifics of the water heater may be Various configuration changes are possible.

(f) The means to recognize the required hot water supply mode of each terminal device is as follows:
It may be configured with a plurality of manual changeover switches as in the above-mentioned embodiment, or it may be configured such that the required hot water supply mode of each terminal device is recognized based on the signal received from each terminal device, and various configuration changes are possible.

Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

[Brief explanation of the drawing]

FIG. 1 is an apparatus configuration diagram showing an embodiment of the present invention. Second
The figure is a diagram showing the configuration of a conventional device. (1)...Water heater, (2A), (2B)...
...Terminal device, (10A) ...Execution hot water supply mode automatic selection means, (31A), (31B), (32
A), (32B)...Required hot water supply mode recognition means.

Claims (1)

[Claims] 1. Water heater (1) that selectively executes a plurality of hot water supply modes
A switching means connects a plurality of terminal devices (2A) and (2B) that function to heat the hot water supplied from the water heater (1) as a heat source heat medium to the water heater (1), and switches the hot water supply mode to be executed by the water heater (1). The hot water utilization device is provided with: As a component of the switching means, means (31A), (31B), (32A), (31B), (32A), (31B), (32A), (31B), (31B), (32A), (31B), (31B), (32A), (31B), (31B), (32A), (31B), (32A), (32A), (31B), (32A), (31B), (2B), and (2B), respectively, are configured as means for the switching means.
32B), and the terminal devices (2A) and (2B) according to the start and stop of operation of the terminal devices (2A) and (2B), respectively.
), extracting the requested hot water supply mode of the hot water supply mode that is in operation, and causing the water heater (1) to execute the hot water supply mode that is highest according to the setting priority criteria among the extracted hot water supply modes. (10A) Hot water usage equipment. 2. The hot water utilization device according to claim 1, wherein the setting priority criteria is such that priority is given to a hot water supply mode with a higher required hot water temperature.