JP5892848B2 - Method of operating floor heating device and floor heating device - Google Patents

Description

  The present invention includes a floor heating panel that is installed on the floor of the space to be heated and operates to heat the space to be heated, and floor heating means that can adjust the heating capacity of the floor heating panel is provided. The present invention relates to a method for operating a floor heating apparatus and a floor heating apparatus.

Such a floor heating device heats a floor heating panel by heating a floor heating panel installed in the floor of the heating target space and heating the floor surface of the heating target space. The heating capacity is configured to be adjustable, and the temperature of the space to be heated can be adjusted by adjusting the heating capacity of the floor heating panel.
For example, a heat medium flow pipe that allows the heat medium to flow through the floor heating panel is provided in an embedded state in a meandering manner, and the heat medium heated by the heat source device is circulated to the floor heating panel through the heat medium flow pipe. By doing so, the floor heating panel is heated. In this case, for example, the heating medium is configured to be intermittently circulated in the floor heating panel, and the duty ratio for circulating the heating medium intermittently is changed in a plurality of stages, thereby allowing the floor heating panel to be circulated. The heating capacity is configured to be adjustable. If explanation is added, a thermal valve that can intermittently supply the heating medium to the floor heating panel will be provided, and the ratio of the time during which the thermal valve is opened in the set cycle time (for example, 20 minutes) By changing to a plurality of stages, the duty ratio for circulating the heat medium is changed to a plurality of stages.

  In such a floor heating apparatus, conventionally, as a configuration for changing and adjusting the heating capacity of the floor heating panel, the size of the heating capacity of the floor heating panel (for example, one of a plurality of stages of duty ratio) is set by human operation. There is a configuration in which a manually operated heating capacity setting unit is provided and the heating capacity of the floor heating panel is adjusted to the heating capacity set by the heating capacity setting unit. That is, the heating capacity of the floor heating panel is adjusted to a user's desired heating capacity (see, for example, Patent Document 1).

JP 2008-157591 A

By the way, such a floor heating device is mainly for adjusting the temperature of the floor surface of the space to be heated. Usually, in addition to such a floor heating device, the space in the space to be heated is mainly used. Other heating devices (for example, heat pump type air conditioners, gas fan heaters, etc.) capable of adjusting the temperature are provided.
For example, depending on climatic conditions such as severe cold, other heating devices may be operated together with the floor heating device.

Since the floor heating device mainly adjusts the temperature of the floor surface of the space to be heated, and the other heating device mainly adjusts the space temperature of the space to be heated, the floor heating device and other heating devices Are operated together, even if the space to be heated is excessively heated, it is difficult for the user to recognize. Moreover, even if the user recognizes that the heating state of the space to be heated is excessive, an operation to weaken the heating capacity of the floor heating device or another heating device is not necessarily performed.
Therefore, conventionally, when the floor heating device is operated together with another heating device, even if the heating state of the space to be heated becomes excessive, the floor heating device or other heating for eliminating the excessive heating state is performed. Since it is difficult to operate the device, there is room for improvement in operating the floor heating device so as to properly heat the space to be heated while suppressing excessive or insufficient heating conditions in the space to be heated while saving energy. was there.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide a floor heating apparatus capable of operating a heating target space so that it can be appropriately heated while saving energy even when operated together with other heating apparatuses. It is in providing the operating method of this and a floor heating apparatus.

The operation method of the floor heating apparatus according to the present invention includes a floor heating panel that is installed on the floor of the space to be heated and operates to heat the space to be heated, and adjusts the heating capacity of the floor heating panel. A method of operating a floor heating device provided with possible floor heating means,
The characteristic configuration includes space temperature detection means for detecting the temperature of the space to be heated,
Environmental temperature detection means for detecting the temperature of the outside air or the temperature of the location that fluctuates according to the temperature of the outside air as the environmental temperature; and
Performing a learning operation of operating the floor heating means with a heating capacity determined under a predetermined reference heating condition in a state where another heating device capable of heating the space to be heated is not operated, the space temperature Based on the detection information of the detection means, a time series heating target detected by the space temperature detection means is a reference temperature profile that is a transition with time in the temperature of the heating target space from the start time of the learning operation. A learning operation step of acquiring the room temperature as a reference environmental temperature based on the detection information of the environmental temperature detection means, and acquiring the environmental temperature during the learning operation as a reference environmental temperature.
Prior to actual operation of the floor heating means, the environmental temperature detected by the environmental temperature detection means is acquired as the actual operating environment temperature, and the difference between the reference environmental temperature and the actual operating environment temperature and the Based on the reference temperature profile, as a predicted temperature profile , a time-series predicted heating target room temperature obtained by adding a difference obtained by subtracting the reference environmental temperature from the actual operating environment temperature to each of the time-series heating target room temperatures. the predicted temperature profile deriving step of deriving a,
Based on the predicted temperature profile, for determining a proper heating state in which the heating state of the space to be heated is appropriate at a time when a predetermined set time has elapsed from the start of operation of the floor heating means in the predicted temperature profile. A temperature range setting step for setting a temperature range for judgment,
The detected temperature is within the determination temperature range based on the temperature detected by the space temperature detecting means at the time when the predetermined set time has elapsed after the floor heating means is operated under the reference heating condition. Is determined to be in the proper heating state, and when the detected temperature exceeds the determination temperature range, the operation state determination is performed to determine that the heating state of the heating target space is an excessively excessive heating state. Execute the process in order,
Based on the determination result in the operation state determination step, execute heating capacity control for controlling the heating capacity of the floor heating panel ,
In the execution of the heating capacity control, when it is determined in the operation state determination step that the heating state is appropriate, the floor heating unit maintains the heating capacity defined in the reference heating condition or the current heating capacity. If the condition maintenance control for continuing the operation is performed and it is determined in the operation state determination step that the overheated state is present, the heating capacity of the floor heating panel is determined according to the reference heating condition or The heating capacity lowering control is performed to control the operation of the floor heating means to lower the current heating capacity or to stop the heating operation of the floor heating panel .

According to the above characteristic configuration, in the learning operation step, the detection information of the space temperature detection means is obtained by operating the floor heating means with the heating capacity determined by the reference heating condition in a state where the other heating devices are not operated. The reference temperature profile is acquired based on the reference temperature, and the reference environmental temperature is acquired based on the detection information of the environmental temperature detection means.
Next, in the predicted temperature profile derivation step, before the floor heating means is actually operated, the environmental temperature detected by the environmental temperature detection means is acquired as the actual operating environment temperature, and the reference environmental temperature and the actual operating environment are obtained. A predicted temperature profile is derived based on the difference from the temperature and the reference temperature profile.
Next, in the temperature range setting step, in order to determine an appropriate heating state in which the heating state of the heating target space is appropriate when a predetermined set time has elapsed from the start of operation of the floor heating unit, based on the predicted temperature profile. Set the judgment temperature range.
Next, the floor heating unit is operated under the reference heating condition, and in the operation state determination step, the detected temperature is determined based on the detection temperature of the space temperature detection unit at the time when the set time has elapsed after the start of operation. If it is within the range, it is determined that the heating state is appropriate. If the detected temperature exceeds the temperature range for determination, the heating state is excessive (that is, it is synonymous with excessive heating). It determines with it being in a heating state.
And based on the determination result in the driving | running state determination process, the heating capability control which controls the heating capability of a floor heating panel is performed.

That is, when the operation of the floor heating unit is started in a state where the other heating device is not operated, the detected temperature of the space temperature detection unit changes substantially along the predicted temperature profile, while the other heating device operates. When the operation of the floor heating means is started in the state of being performed, the detected temperature of the space temperature detecting means is considered to change along the predicted temperature profile at a temperature higher than the predicted temperature profile.
Then, after the start of the operation of the floor heating means, when it is determined that the detected temperature of the space temperature detection means at the time when the set time has passed exceeds the determination temperature range and is in an overheated state, other heating devices also May be driving together. Therefore, if there is such a possibility, executing control to reduce the ability to heat the space to be heated, such as reducing the heating ability of other heating devices, reducing the heating ability of the floor heating panel, etc. It is possible to maintain an appropriate heating state while achieving energy.
Accordingly, it is possible to provide a method of operating a floor heating apparatus that can operate a heating target space appropriately and heatable while saving energy even when operated together with another heating apparatus.

Moreover, according to the said characteristic structure, when it determines with it being in an appropriate heating state by the driving | running state determination process, the heating capacity defined by reference | standard heating conditions or the present heating capacity is maintained, and a floor heating means is drive | operated. If it is determined that it is in an overheating state in the operation state determination step, the heating capacity of the floor heating panel is set to be lower than the heating capacity defined in the reference heating condition or the current heating capacity, or the floor heating panel The operation of the floor heating means is controlled to stop the heating operation.
That is, even if the level of the heating state of the operation heating target space changes depending on whether another heating device is operated together with the floor heating device, the heating capacity is adjusted according to the level of the heating state. Since the floor heating means can be operated, the space to be heated can be heated more appropriately.
Therefore, it is possible to appropriately heat the heating target space while saving energy regardless of whether or not it is operated together with another heating device.

The further characteristic composition of the operation method of the floor heating device concerning the present invention is set as the 1st set time which is the first set time after the start of operation as the predetermined set time,
In the initial temperature range setting step as the temperature range setting step, an initial determination temperature range for determining the appropriate heating state at the time when the first set time has elapsed,
In the initial operation state determination step when the first set time has elapsed as the operation state determination step, the appropriate heating state based on the detected temperature of the space temperature detection means when the first set time has elapsed When it determines with it being, it is in the point which performs the said condition maintenance control, and when determining with being the said excessive heating state, it performs the said heating capability fall control.

According to the above characteristic configuration, when the first set time, which is the first set time after the start of operation, has elapsed, the initial operation state determination step as the operation state determination step is executed, and the appropriate heating state or overheating state is performed. If it is determined that it is in the proper heating state, the condition maintenance control is executed, and if it is determined that the state is in the excessive heating state, the heating capacity reduction control is executed.
Therefore, after starting the operation of the floor heating means, it is determined as soon as possible whether or not it is in an overheating state, and if it is determined to be in an overheating state, the heating capacity lowering control is executed. The target space can be appropriately heated.

According to a further characteristic configuration of the operation method of the floor heating apparatus according to the present invention, when the second set time elapses after the first set time elapses,
A normal temperature range setting step for setting a normal determination temperature range for determining the appropriate heating state at the time when the second set time has elapsed based on the predicted temperature profile;
Based on the detected temperature of the space temperature detecting means at the time when the second set time has elapsed, when the detected temperature is within the normal determination temperature range, it is determined that the heating state is appropriate, and the detected temperature When the normal temperature determination temperature range is exceeded, the normal operation state determination step for determining that the overheating state is in order,
When it is determined that the overheating state is determined in both the initial operation state determination step and the normal operation state determination step, it is determined that the other heating device is operating.

That is, the normal operation at the time when the second set time has elapsed after the initial operation state determination step, even though it is determined in the initial operation state determination step that the heating state is overheated and the heating capacity reduction control is executed. Even in the operation state determination step, when it is determined that the state is an excessive heating state, it is considered that there is an extremely high possibility that other heating devices are also operated along with the floor heating device.
Therefore, according to the above-described feature configuration, when it is determined that the overheating state is determined in both the initial operation state determination step and the normal operation state determination step, it is determined that the other heating device is in operation. To do.
And the process for aiming at energy saving corresponding to the state by which the floor heating apparatus is drive | operated with the other heating apparatus by determining that it is in the state where the other heating apparatus is operated in that way Can be performed accurately.
For example, by performing a process of notifying the user of information that prompts the user to confirm whether or not another heating device is being operated, the user can recognize that the other heating device is being operated together with the floor heating device. Thus, it is possible to take measures to save energy, such as reducing the heating capacity of other heating devices.

A further characteristic configuration of the operation method of the floor heating apparatus according to the present invention is that the normal temperature range setting step and the normal operation state determination each time the second set time elapses after the first set time elapses. Execute the process in order,
When it is determined that the proper heating state is in the normal operation state determination step, the condition maintenance control is executed. When the overheating state is determined, the heating capacity reduction control is executed. is there.

According to the above characteristic configuration, the normal temperature range setting step and the normal operation state determination step are sequentially executed every time the second set time elapses after the first set time elapses, and the normal operation state determination is performed. When it is determined in the process that the heating state is appropriate, condition maintenance control is executed. When it is determined that the heating state is excessive, heating capacity reduction control is executed.
Therefore, while operating the floor heating device, the heating capacity of the floor heating panel is adjusted according to the heating state of the space to be heated regardless of whether other heating devices are operated or not. The space can be heated appropriately.
In addition, even when another heating device is operated after the operation of the floor heating device is started, the heating capacity of the floor heating panel is adjusted according to the heating state of the heating target space to appropriately heat the heating target space. Can do.

By the way, when implementing this characteristic configuration, the learning operation is executed until the temperature equilibrium state where the detected temperature of the space temperature detecting means is substantially balanced, and based on the detection information of the space temperature detecting means during the learning operation. Thus, it is preferable to derive a reference temperature profile for a period from the start of the learning operation until the temperature equilibrium state is reached.
In other words, even when the floor heating device is operated longer than the time when the learning operation is performed, the reference temperature is increased by extending the temperature equilibrium state portion in the predicted temperature profile in the direction in which the temperature advances in the equilibrium state. The predicted temperature profile can be derived according to the operating time of the floor heating device over a longer time than the time when the profile is acquired.

The further characteristic configuration of the operation method of the floor heating device according to the present invention is that the normal temperature is determined when the initial heating state determination step or the normal operation state determination step immediately before is determined as the proper heating state. In the range setting step, the upper limit temperature of the temperature range for normal determination is
When the temperature of the space to be heated has changed along the predicted temperature profile from the temperature detected by the space temperature detection means at the time when the first set time has elapsed or the immediately preceding second set time has elapsed. 2 Set the temperature higher than the predicted predicted arrival temperature when the set time has elapsed by a predetermined temperature change tolerance on the high temperature side,
The lower limit temperature of the temperature range for normality determination,
Set the temperature lower by the allowable temperature change width on the low temperature side than the predicted temperature at the appropriate time,
In the initial operation state determination step or the immediately preceding normal operation state determination step, if it is determined that the overheating state, in the normal temperature range setting step, the upper limit temperature of the normal determination temperature range,
When the temperature of the space to be heated has changed along the predicted temperature profile from the temperature detected by the space temperature detection means at the time when the first set time has elapsed or the immediately preceding second set time has elapsed. 2) Set the temperature higher than the predicted temperature at the time of overheating at the time when the set time has elapsed by a temperature change allowable width higher on the high temperature side,
The lower limit temperature of the temperature range for normality determination,
The temperature is set to be lower by a temperature range wider than the allowable temperature change range on the low temperature side with respect to the predicted reached temperature during overheating.

According to the above characteristic configuration, when it is determined that the heating state is appropriate in the initial operation state determination step or the immediately preceding normal operation state determination step, in the normal temperature range setting step, when the first set time has elapsed. Alternatively, assuming that the temperature of the space to be heated changes along the predicted temperature profile from the detected temperature of the space temperature detecting means at the time when the immediately preceding second set time has elapsed, the temperature at the time when the second set time has elapsed is predicted when appropriate Derived as the ultimate temperature.
Then, the upper limit temperature of the temperature range for normal judgment is set to a temperature higher by a predetermined temperature change allowable range on the high temperature side than the predicted predicted temperature at the appropriate time, and the lower limit temperature is set to the predicted predicted temperature at the proper time. Thus, the temperature is set lower on the low temperature side by the allowable temperature change width.
On the other hand, when it is determined in the initial operation state determination step or the immediately preceding normal operation state determination step that the state is an overheated state, the normal temperature range setting step includes the second time immediately before or after the first set time has elapsed. Assuming that the temperature of the space to be heated changes along the predicted temperature profile from the detected temperature of the space temperature detecting means when the set time has elapsed, the temperature at the time when the second set time has elapsed is derived as the overestimated predicted arrival temperature. .
Then, the upper limit temperature of the temperature range for normal judgment is set to a temperature that is higher by a temperature change allowable range on the high temperature side than the overheated predicted arrival temperature, and the lower limit temperature is set to the overheated predicted arrival temperature. Thus, the temperature is set to be lower by a temperature range wider than the allowable temperature change range on the low temperature side.

That is, when it is determined that the state is an excessive heating state, the heating capacity reduction control is executed, and when the heating capacity reduction control is executed, the temperature of the space to be heated may tend to decrease. Since there is a possibility that another heating device is operated, there is a possibility that the temperature of the space to be heated tends to rise.
Therefore, in the normal temperature range setting step, when it is determined that the overheating state is determined in the initial operation state determination step or the immediately preceding normal operation state determination step, the normal temperature range setting step is more normal than the case where it is determined that the heating state is appropriate. Widely set the temperature range between the reference temperature in the determination temperature range (the predicted arrival temperature at the proper time or the predicted arrival temperature at the excessive time) and the lower limit temperature. As a result, it is possible to avoid performing control such as increasing the heating capacity of the floor heating panel despite the possibility that the temperature of the space to be heated once rises to an appropriate temperature even if it decreases. .
Therefore, the temperature of the heating target space can be prevented from becoming unstable, and the heating target space can be appropriately heated.

  A further characteristic configuration of the operation method of the floor heating apparatus according to the present invention is that the temperature detected by the space temperature detection means falls below the initial determination temperature range in the initial operation state determination step, and the heating state of the space to be heated is determined. Is determined to be in an underheated state when the temperature detected by the space temperature detecting means falls below the normal temperature determination temperature range in the normal operation state determining step. In the case where the heating capacity of the floor heating panel is increased, the heating capacity of the floor heating panel is controlled so as to control the operation of the floor heating means so as to increase the heating capacity determined by the reference heating condition or the current heating capacity. It is in.

According to the above characteristic configuration, when the temperature detected by the space temperature detecting means falls below the initial determination temperature range in the initial operation state determination step, it is determined that the state is underheating, and in the normal operation state determination step, When the temperature detected by the space temperature detection means falls below the normal temperature range for determination, it is determined that the heating state is an underheated state that is too small (that is, synonymous with a state where heating is insufficient).
And when it determines with it being an underheating state in an initial driving | running state determination process, or it determines with being an underheating state in a normal driving | running state determination process, the heating capability of a floor heating panel is determined by the reference heating conditions. A heating capacity increase control is performed to control the operation of the floor heating means to increase the capacity or the current heating capacity.

In other words, after detecting the environmental temperature during actual operation by the environmental temperature detection means, the heating capacity of the floor heating panel is increased even if the heating load in the heating target space is larger than the detection time of the actual environmental temperature during actual operation. The space to be heated can be appropriately heated.
For example, after the floor heating device is operated, the outside air temperature is lower than when the ambient temperature is detected by the environmental temperature detecting means, or after the floor heating device is operated, the window or door of the heating target space is slightly opened. Thus, even if the heating load of the space to be heated increases, the space to be heated can be appropriately heated.

The further characteristic configuration of the operation method of the floor heating device according to the present invention is that the normal temperature is determined when the underheating state is determined in the initial operation state determination step or the immediately preceding normal operation state determination step. In the range setting step, the lower limit temperature of the normal determination temperature range is
When the temperature of the space to be heated has changed along the predicted temperature profile from the temperature detected by the space temperature detection means at the time when the first set time has elapsed or the immediately preceding second set time has elapsed. 2 Set the temperature lower than the predicted reached temperature at the time of underheating at the time when the set time has elapsed by a predetermined temperature change tolerance on the low temperature side,
The upper limit temperature of the temperature range for normal judgment is
The temperature is set to be higher by a temperature range wider than the allowable temperature change range on the high temperature side with respect to the predicted temperature at the time of underheating.

According to the above characteristic configuration, when it is determined in the initial operation state determination step or the immediately preceding normal operation state determination step that the underheated state is present, in the normal temperature range setting step, when the first set time has elapsed. Alternatively, assuming that the temperature of the space to be heated changes according to the predicted temperature profile from the temperature detected by the space temperature detecting means at the time when the immediately preceding second set time has elapsed, the temperature at the time when the second set time has elapsed is under-heated. Derived as the predicted temperature reached.
Then, the lower limit temperature of the temperature range for normal judgment is set to a temperature lower by a temperature change allowable range on the low temperature side than the predicted reaching temperature during underheating, and the upper limit temperature is set lower than the predicted reaching temperature during underheating. Thus, the temperature is set higher by a temperature range wider than the allowable temperature change range on the high temperature side.

That is, when it is determined that the underheating state is present, the heating capacity increase control for increasing the heating capacity of the floor heating panel to be higher than the current heating capacity is executed. There is a possibility that it will be in an equilibrium state and fall to an appropriate temperature range.
Therefore, in the normal temperature range setting process, when it is determined that the underheating state is in the initial operation state determination process or immediately before the normal operation state determination process, the normal temperature range setting process is more normal than when it is determined that the heating state is appropriate. A wide temperature range is set between the reference temperature in the determination temperature range (the predicted arrival temperature at the proper time or the predicted arrival temperature at the time of underheating) and the upper limit temperature. As a result, even if the temperature of the space to be heated rises once, it is possible to avoid performing control such as reducing the heating capacity of the floor heating panel, although there is a possibility that the temperature will decrease to an appropriate temperature. .
Therefore, the temperature of the heating target space can be prevented from becoming unstable, and the heating target space can be appropriately heated.

A floor heating apparatus according to the present invention includes a floor heating panel that is installed on a floor portion of a space to be heated and operates to heat the space to be heated, and is capable of adjusting the heating capacity of the floor heating panel. A floor heating device provided with heating means,
The characteristic configuration includes space temperature detection means for detecting the temperature of the space to be heated,
Environmental temperature detection means for detecting the temperature of the outside air or the temperature of the portion that varies according to the temperature of the outside air as the environmental temperature;
Control means for controlling the operation,
The control means is
Performing a learning operation of operating the floor heating means with a heating capacity determined under a predetermined reference heating condition in a state where another heating device capable of heating the space to be heated is not operated, the space temperature Based on the detection information of the detection means, a time series heating target detected by the space temperature detection means is a reference temperature profile that is a transition with time in the temperature of the heating target space from the start time of the learning operation. A learning operation step of acquiring the room temperature as a reference environmental temperature based on the detection information of the environmental temperature detection means, and acquiring the environmental temperature during the learning operation as a reference environmental temperature.
Prior to actual operation of the floor heating means, the environmental temperature detected by the environmental temperature detection means is acquired as the actual operating environment temperature, and the difference between the reference environmental temperature and the actual operating environment temperature and the Based on the reference temperature profile, as a predicted temperature profile , a time-series predicted heating target room temperature obtained by adding a difference obtained by subtracting the reference environmental temperature from the actual operating environment temperature to each of the time-series heating target room temperatures. the predicted temperature profile deriving step of deriving a,
Based on the predicted temperature profile, for determining a proper heating state in which the heating state of the space to be heated is appropriate at a time when a predetermined set time has elapsed from the start of operation of the floor heating means in the predicted temperature profile. A temperature range setting step for setting a temperature range for judgment,
The detected temperature is within the determination temperature range based on the temperature detected by the space temperature detecting means at the time when the predetermined set time has elapsed after the floor heating means is operated under the reference heating condition. Is determined to be in the proper heating state, and when the detected temperature exceeds the determination temperature range, the operation state determination is performed to determine that the heating state of the heating target space is an excessively excessive heating state. Execute the process in order,
Based on the determination result in the operation state determination step, execute heating capacity control for controlling the heating capacity of the floor heating panel ,
The control means is
In the execution of the heating capacity control, when it is determined in the operation state determination step that the heating state is appropriate, the floor heating unit maintains the heating capacity defined in the reference heating condition or the current heating capacity. If the condition maintenance control for continuing the operation is performed and it is determined in the operation state determination step that the overheated state is present, the heating capacity of the floor heating panel is determined according to the reference heating condition or The heating capacity lowering control is performed to control the operation of the floor heating means to lower the current heating capacity or to stop the heating operation of the floor heating panel .

According to the above characteristic configuration, the control means acquires the reference temperature profile and the reference environmental temperature in the learning operation step, as described in the characteristic configuration of the operation method of the floor heating device. In the predicted temperature profile deriving step, a predicted temperature profile is derived, in the temperature range setting step, a determination temperature range is set, and then the floor heating means is operated under the reference heating condition, and in the operation state determination step, proper heating is performed. Whether it is a state or an overheating state is determined.
And a control means performs the heating capability control which controls the heating capability of a floor heating panel based on the determination result in the driving | running state determination process.

That is, when it is determined in the operation state determination step that it is in an overheated state, the other heating devices are also operated together in the same way as described in the characteristic configuration of the operation method of the floor heating device. If there is such a possibility, control to reduce the heating capacity of the space to be heated, such as reducing the heating capacity of other heating devices or reducing the heating capacity of the floor heating panel, is executed. By doing so, it is possible to maintain an appropriate heating state while saving energy.
Accordingly, it is possible to provide a floor heating apparatus that can be operated in such a manner that the space to be heated can be appropriately heated while saving energy even when operated together with other heating apparatuses.

Moreover, according to the said characteristic structure, when it determines with a control means being an appropriate heating state in a driving | running state determination process, a floor heating is maintained while maintaining the heating capability defined by reference | standard heating conditions, or the present heating capability. When the operation of the means is continued and it is determined in the operation state determination step that the state is an overheating state, the heating capacity of the floor heating panel should be reduced below the heating capacity defined in the reference heating condition or the current heating capacity. Alternatively, the operation of the floor heating means is controlled to stop the heating operation of the floor heating panel.
In other words, the heating capacity is automatically adjusted according to the level of the heating state even if the level of the heating state of the target heating space changes depending on whether other heating units are operated along with the floor heating unit. In this manner, the floor heating means can be operated, so that the space to be heated can be heated more appropriately.
Therefore, it is possible to appropriately heat the heating target space while saving energy regardless of whether or not it is operated together with another heating device.

Block diagram showing the overall schematic configuration of the floor heating system The figure which shows the flowchart of control action The figure which shows the flowchart of control action The figure which shows the flowchart of control action The figure which shows the flowchart of control action The figure which shows the flowchart of control action The figure which shows the flowchart of control action The figure which shows the flowchart of control action The figure which shows the flowchart of control action The figure which shows the flowchart of control action Diagram showing reference temperature profile Figure showing the predicted temperature profile The figure explaining the setting method of the temperature range for initial judgment Diagram explaining how to set the temperature range for normal judgment Diagram explaining how to set the temperature range for normal judgment Diagram explaining how to set the temperature range for normal judgment

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
As shown in FIG. 1, the floor heating device FH according to the present invention is installed below a floor material (not shown) of a heating target room R (an example of a heating target space) and is heated by flowing a heat medium. A floor heating panel 1 to be heated, a heat source device 2 that circulates and supplies a heating medium to the floor heating panel 1, and a room temperature sensor 3 that detects the temperature in the heating target room R (an example of a space temperature detecting means, 1 is indicated by a broken line circle), an outside air temperature sensor 4 (which is an example of an environmental temperature detection means, and is indicated by a broken line circle in FIG. 1) that detects the temperature of the outside air as an environmental temperature, and the floor heating device FH The control unit 5 is configured to include a control unit 5 as a control unit that controls the operation, and a remote operation type operation unit 6 that transmits operation control information to the control unit 5.
The operation unit 6 is provided in the heating target room R, the room temperature sensor 3 is provided in the operation unit 6, and the heat source unit 2 is provided outdoors, and the outside air temperature sensor is provided in the heat source unit 2. 4 is provided.

  In the heating target room R, another air conditioner AC capable of heating the heating target room R is provided separately from the floor heating apparatus FH according to the present invention. Incidentally, as this other air conditioner AC, for example, a heat pump type air conditioner provided with a heat pump cycle and capable of cooling and heating is provided.

Next, description is added about each part of the floor heating apparatus FH.
As shown in FIG. 1, the floor heating panel 1 includes a panel material 11 in which a heat medium flow pipe 12 is provided in a meandering manner, and the heated heat medium is heated through the heat medium circulation path 7. Heating operation is performed by flowing through the medium flow pipe 12.

Since the heat source device 2 is well known, a detailed description and illustration thereof will be omitted. Briefly, the heat source device 2 is a heat source that allows heat medium to flow through a heat exchanger for heating the heat medium. A medium passage, a gas burner for heating the heat exchanger, a combustion blower for supplying combustion air to the gas burner, and a heat medium to flow toward the outlet for the heat medium delivery in the heat medium passage A heat medium circulation pump or the like provided in the heat medium passage is provided.
As shown in FIG. 1, the heat medium return pipe 7 f of the heat medium circulation path 7 is connected to the heat medium delivery outlet of the heat medium flow path, and the heat medium return pipe 7 r is heated in the heat medium flow path. The heat medium connected to the medium return inlet and heated to a predetermined target heating temperature (for example, 60 ° C.) by the heat of combustion of the gas burner in the heat exchanger by the flow action of the heat medium circulation pump is the heat medium. It is configured to be circulated and supplied to the floor heating panel 1 through the circulation path 7.

The heat transfer pipe 7f is provided with a heat valve 8 that opens and closes the flow path to interrupt the flow of the heat transfer medium. And it is comprised so that a heating medium may be circulated and supplied to the floor heating panel 1 intermittently by opening and closing this thermal valve 8 by predetermined setting cycle time. Then, when the heating medium is intermittently circulated and supplied to the floor heating panel 1, the heating ratio of the floor heating panel 1 is changed by changing the duty ratio of the valve opening time of the thermal valve 8 in a plurality of stages. It is configured to adjust in stages.
The operation unit 6 is provided with a manually operated heating capacity setting unit 61 that selectively selects and sets the heating capacity of the floor heating panel 1 from a plurality of stages.

For example, the set cycle time is set to 20 minutes, and the duty ratio of the valve opening time (valve opening time / setting time) is “18 minutes / 20 minutes”, “16 minutes / 20 minutes”, “14 minutes / 20 minutes” ”,“ 12 minutes / 20 minutes ”,“ 10 minutes / 20 minutes ”,“ 8 minutes / 20 minutes ”, and“ 6 minutes / 20 minutes ”.
Then, the heating capacity setting section 61 of the operation section 6 has heating capacities of seven stages “1” to “7” corresponding to the duty ratios of the seven stages of valve opening time (the larger the number, the larger the heating capacity). Among them, any heating capability can be selected and set.

The control unit 5 is configured to open and close the thermal valve 8 at a duty ratio corresponding to the heating capability set by the heating capability setting unit 61 of the operation unit 6, and is set by the heating capability setting unit 61. The heat medium is intermittently circulated through the floor heating panel 1 at a duty ratio corresponding to the heating capacity.
That is, the floor heating panel 1, the heating medium circulation path 7 for circulating the heating medium to the floor heating panel 1, the heat source machine 2 that circulates and supplies the heated heating medium to the floor heating panel 1 through the heating medium circulation path 7, In addition, the floor heating panel 1 that is installed on the floor of the room to be heated R and is heated to heat the room to be heated R by a heat valve 8 or the like that intermittently circulates and supplies the heat medium to the floor heating panel 1. And a floor heating means M capable of adjusting the heating capacity of the floor heating panel 1 is configured.

Next, the operation method of the floor heating apparatus FH according to the present invention will be described.
In this embodiment, the controller 5 is configured to execute the driving method according to the present invention.
That is, the control unit 5 performs the learning operation in which the floor heating means M is operated with the heating capacity determined under a predetermined reference heating condition in a state where the other heating device AC capable of heating the heating target room R is not operated. To obtain a reference temperature profile, which is a transition with time in the temperature of the heating target room R from the start of the learning operation based on the detection information of the room temperature sensor 3, and the detection of the outside air temperature sensor 4 Based on the information, the learning driving process of acquiring the environmental temperature at the time of learning driving as the reference environmental temperature,
Before the floor heating means M is actually operated, the environmental temperature detected by the outside air temperature sensor 4 is acquired as the actual operating environment temperature, and the difference between the reference environmental temperature and the actual operating environment temperature and the reference temperature profile are obtained. A predicted temperature profile deriving step for deriving a predicted temperature profile based on
Based on the predicted temperature profile, when a predetermined set time has elapsed from the start of operation of the floor heating means M in the predicted temperature profile, a proper heating state in which the heating state of the heating target room R is appropriate is determined. A temperature range setting step for setting a temperature range for judgment,
Based on the detected temperature of the room temperature sensor 3 at the time when a predetermined set time has elapsed after the floor heating means M is operated under the reference heating condition and the operation is started, proper heating is performed when the detected temperature is within the determination temperature range. If the detected temperature exceeds the temperature range for determination, the operation state determination step for determining that the heating state of the heating target room R is an excessively excessive heating state is sequentially executed.
Based on the determination result in the operation state determination step, the heating capacity control for controlling the heating capacity of the floor heating panel 1 is executed.

  In this embodiment, the control unit 5 executes the learning operation until a temperature equilibrium state where the detected temperature of the room temperature sensor 3 is substantially in equilibrium is reached, and based on the detection information of the room temperature sensor 3, the learning operation is started. A reference temperature profile until the temperature equilibrium state is reached is derived.

Next, the control operation of the control unit 5 will be described.
As shown in FIG. 1, in addition to the above-described heating capacity setting unit 61, the operation unit 6 includes a normal operation switch 62 that commands the start and stop of normal operation (details will be described later) of the floor heating device FH. A synchro operation switch 63 for instructing start and stop of a synchro operation (details will be described later) for operating the floor heating device FH in association with an operation state of another air conditioner AC, a learning operation switch 64 for instructing a learning operation, A timer setting switch 65 for setting the start time and stop time of the timer operation, a display 66 for displaying various information, and the like are provided.

When the normal operation is instructed by the normal operation switch 62 or the normal operation is instructed by the normal operation switch 62, the control unit 5 reaches the start time set by the timer setting switch 65. The first cycle is a hot dash that continuously supplies a heating medium heated to a target heating temperature (for example, 70 ° C.) for hot dash that is higher than that of the subsequent cycle for a set cycle time. After the operation is performed, the thermal valve 8 is opened / closed at a duty ratio corresponding to the heating capacity set by the heating capacity setting unit 61 from the next cycle.
Then, the control unit 5 is instructed to stop operation when the normal operation switch 62 is instructed to stop by the normal operation switch 62 or the stop time set by the timer setting switch 65 is reached. Then, the heat source unit 2 is stopped, and the thermal valve 8 is closed to stop the floor heating means M.

  When the user of the floor heating device FH causes the floor heating device FH to perform the learning operation, a command is given by the learning operation switch 64. The setting unit 61 sets the heating capacity of the floor heating panel 1 during the learning operation to the same heating capacity as the heating capacity of the floor heating panel 1 when performing the synchro operation.

When the learning operation is commanded by the learning operation switch 64, the control unit 5 executes the learning operation. As a reference heating condition for performing the learning operation, the first cycle is a hot dash operation, and from the next cycle, thermal operation is performed with a duty ratio corresponding to the heating capacity set by the heating capacity setting unit 61. It is defined as a condition for opening and closing the valve 8.
The control operation of the control unit 5 in this learning operation will be described based on the flowchart shown in FIG.
The control unit 5 determines whether or not a learning operation start condition that allows the start of the learning operation is satisfied when a preset learning operation start time (for example, 2:00 am) is reached (steps # 1 and # 2). . In Step # 2, it is repeatedly 2 that the change width of the temperature detected by the room temperature sensor 3 is within the change width for equilibrium state determination (for example, 1 ° C.) for a set time (for example, 5 minutes) for the room temperature change determination If it is confirmed once, it is determined that the learning driving start condition is satisfied.

When the control unit 5 determines that the learning operation start condition is satisfied in step # 2, the control unit 5 operates the floor heating unit M under the reference heating condition, and operates for a predetermined sampling time (for example, 1) while operating under the reference heating condition. Every minute), the room temperature sensor 3 detects the room temperature Trs (t) to be heated, and the outside air temperature sensor 4 detects the environmental temperature Tos (t) (steps # 3 to 5).
Next, the control unit 5 detects the detection temperature Trs (t) of the room temperature sensor 3 during the set time for the room temperature change determination within the equilibrium state determination change width and is detected by the room temperature sensor 3. When it is determined that the heating target room temperature Trs (t) is in a temperature equilibrium state that is substantially in equilibrium, the reference temperature profile Trs (t) is acquired, the reference environment temperature Tos (ave) is acquired, and then the heat source machine 2 is stopped and the thermal valve 8 is closed to stop the floor heating means M and finish the learning operation (steps # 6 to # 8).

The control unit 5 acquires the time-series heating target room temperature Trs (t0 to te) detected by the room temperature sensor 3 during the learning operation as the reference temperature profile Trs (t). Incidentally, the reference temperature profile Trs (t) is shown in FIG.
The control unit 5 averages the time-series environmental temperatures Tos (t0 to te) detected during the learning operation, and acquires the average value as the reference environmental temperature Tos (ave).
Here, t0 to te indicate times that change at sampling time intervals such as t0, t1, t2,. That is, Trs (t0 to te) represents a plurality of time-series data of Trs (t0), Trs (t1), Trs (t2),. Also, Tos (t0 to te) indicates a plurality of time-series data of Tos (t0), Tos (t1), Tos (t2),.

  The user of the floor heating device FH commands the floor heating device FH to perform the synchro operation, and commands the synchro operation switch 63. However, when the user commands the synchro operation switch 63, The heating capacity of the floor heating panel 1 in the synchronized operation is automatically set to the same heating capacity as that in the learning operation.

The control unit 5 is in a state in which the synchro operation is instructed by the synchro operation switch 63 or the start time set by the timer setting switch 65 in the state in which the synchro operation is instructed by the synchro operation switch 63. Synchronized operation is executed at the start of operation.
First, based on the flowchart shown in FIG. 3, the outline control operation | movement of the control part 5 of the whole synchro operation is demonstrated. Note that the first set time ts1 and the second set time ts2 are each set to a time sufficiently longer than the above-described sampling time. In this embodiment, both the first set time ts1 and the second set time ts2 It is set to the same time (20 minutes in this embodiment) as the set cycle time for periodically opening and closing the valve 8.
At the start timing of the synchro operation, the control unit 5 executes the predicted temperature profile derivation step to derive the predicted temperature profile, and subsequently executes the initial temperature range setting step to set the initial determination temperature range. After that, the operation of the floor heating means M is started by the hot dash operation determined by the reference heating condition. After the start, when the first set time ts1 elapses, the initial operation state determination step is executed, Heating capacity control for operating the floor heating means M is executed under conditions according to the determination result (steps # 11 to 17).

Subsequently, when the second set time ts2 has elapsed, the control unit 5 executes a normal temperature range setting step, sets a normal determination temperature range, and then executes a normal operation state determination step. At the same time, the heating capacity control for operating the floor heating means M is executed under conditions according to the determination result (steps # 18 to 21).
Thereafter, the control unit 5 waits for the second set time until the stop of operation is instructed by the sync operation switch 63 or the stop time set by the timer setting switch 65 is reached. Each time ts2 elapses, the normal temperature range setting step and the normal operation state determination step are executed in order, and the heating capacity control for operating the floor heating means M is executed under the conditions according to the determination result. When the stop is instructed, the heat source machine 2 is stopped, and the thermal valve 8 is closed to stop the operation of the floor heating means M (steps # 22 to 24).

Next, the control operation of each process in the synchro operation will be described.
First, the predicted temperature profile deriving step and the initial temperature range setting step will be described based on the flowchart shown in FIG.
In the predicted temperature profile deriving step, the control unit 5 detects the detected temperature Tor (t0) of the outside air temperature sensor 4 at the start of the synchro operation as the environmental temperature during actual operation, and detects the time series detected during the learning operation. A difference obtained by subtracting the reference environmental temperature Tos (ave) from the actual operating environment temperature Tor (t0) is added to each of the heating target room temperatures Trs (t0 to te). Thus, the time series predicted heating target room temperature Tre (t0 to te) is obtained, and the time series predicted heating target room temperature Tre (t0 to te) is set as the predicted temperature profile Tre (t) (step #). 31, 32). Incidentally, the predicted temperature profile is shown in FIG.

  In the initial temperature range setting step, the control unit 5 uses the predicted temperature Tre (ts1) when the first set time ts1 has elapsed from the start of operation of the floor heating means M in the predicted temperature profile Tre (t) as shown in FIG. ) And the temperature obtained by adding the allowable temperature change width ΔT to the predicted temperature Tre (ts1) as the upper limit temperature Tmax, and the temperature obtained by subtracting the allowable temperature change width ΔT from the predicted temperature Tre (ts1) as the lower limit temperature Tmin. An initial determination temperature range to be set is set (step # 33). Incidentally, the temperature change allowable width ΔT is set to 1 ° C., for example.

Next, based on the flowchart shown in FIG. 5, description will be added about the initial operation state determination step and the heating capacity control based on the determination result of the initial operation state determination step.
When the first set time ts1 has elapsed since the start of the operation of the floor heating means M, the room temperature sensor 3 detects the heating target room temperature Trr (ts1) after the first set time ts1 has elapsed, and the heating target room temperature Trr. (Ts1) is compared with the temperature range for initial determination to determine the heating state (steps # 41 and 42).
In step # 42, when it is determined that the heating target room temperature Trr (ts1) after the elapse of the first set time ts1 is within the initial determination temperature range, it is determined that the heating state is appropriate, and the floor heating of the next cycle is performed. The heating capacity of the panel 1 is set to the heating capacity determined by the reference heating condition (that is, the heating capacity set by the heating capacity setting unit 61), and the process returns (steps # 43 and 44). Then, in the heating capacity control of the next cycle, the thermal valve 8 is opened and closed at a duty ratio corresponding to the heating capacity (that is, the heating capacity set by the heating capacity setting unit 61) determined by the reference heating condition. Manipulate. That is, as the condition maintenance control, the condition maintenance control for maintaining the heating capacity at the heating capacity determined by the reference heating condition and continuing the operation of the floor heating means M is executed.

  In step # 42, when it is determined that the heating target room temperature Trr (ts1) after the elapse of the first set time ts1 is higher than the upper limit temperature Tmax of the initial determination temperature range, it is determined that the state is an excessive heating state, and the next The heating capacity of the floor heating panel 1 in the cycle is set to the heating stop, and the process returns (steps # 45 and 46). In the heating capacity control of the next cycle, the thermal valve 8 is closed and the heating operation of the floor heating panel 1 is stopped. That is, as the heating capacity lowering control, the heating capacity lowering control for controlling the operation of the floor heating means M so as to stop the heating operation of the floor heating panel 1 is executed.

  If it is determined in step # 42 that the heating target room temperature Trr (ts1) after the elapse of the first set time ts1 is lower than the lower limit temperature Tmin of the initial determination temperature range, it is determined as an underheating state and the next The heating capacity of the floor heating panel 1 in the cycle is set to one stage higher than the heating capacity determined by the reference heating condition, and the process returns (steps # 47 and 48). In the heating capacity control of the next cycle, the thermal valve 8 is opened / closed at a duty ratio corresponding to the heating capacity one stage higher than the heating capacity set by the heating capacity setting unit 61. That is, as the heating capacity increase control, the heating capacity increase control for controlling the operation of the floor heating means M is executed so as to increase the heating capacity beyond the heating capacity determined by the reference heating condition.

Next, based on the flowcharts shown in FIGS. 6 to 8, heating based on the determination results of the first normal temperature range setting step, the first normal operation state determination step, and the first normal operation state determination step A description of capability control will be added.
When the control unit 5 determines that the heating state is appropriate in the initial operation state determination step (step # 50 in FIG. 6), as illustrated in FIG. 14, the first set time ts1 detected by the room temperature sensor 3 has elapsed. Assuming that the temperature of the heating target room R has changed from the heating target room temperature Trr (ts1) along the predicted temperature profile Tre (t), the second set time ts2 has elapsed since the first set time ts1 has elapsed. The temperature at the time point (that is, the time point at which the time of ts1 + ts2 has elapsed) is derived as the appropriate predicted temperature Ta (+ ts2). Here, in order to simplify the description, “ts1 + ts2” is abbreviated as “+ ts2” in the following description and drawings.
Then, the temperature obtained by adding the temperature variation allowable width ΔT to the predicted predicted arrival temperature Ta (+ ts2) as the upper limit temperature Tmax, and the temperature obtained by subtracting the temperature variation allowable width ΔT from the predicted predicted arrival temperature Ta (+ ts2) is the lower limit. A temperature range for normal determination as the temperature Tmin is set (step # 51 in FIG. 6).

  When the control unit 5 determines that the overheating state is present in the initial operation state determination step (step # 50 in FIG. 6), as illustrated in FIG. 15, the first set time ts1 detected by the room temperature sensor 3 has elapsed. Assuming that the temperature of the heating target room R has changed from the heating target room temperature Trr (ts1) along the predicted temperature profile Tre (t), the second set time ts2 has elapsed since the first set time ts1 has elapsed. The temperature at the time point (that is, when the time of ts1 + ts2 has elapsed) is derived as the excessive predicted temperature Tb (+ ts2). The temperature obtained by adding the temperature change allowable range ΔT to the excessive predicted temperature Tb (+ ts2) is set as the upper limit temperature Tmax, and the temperature range twice the allowable temperature change ΔT from the excessive predicted temperature Tb (+ ts2). A temperature range for normal determination is set with the temperature obtained by subtracting the lower limit temperature Tmin being set (step # 52 in FIG. 6).

  When the control unit 5 determines that the state of underheating is in the initial operation state determination step (step # 50 in FIG. 6), as shown in FIG. 16, after the first set time ts1 detected by the room temperature sensor 3 has elapsed. Assuming that the temperature of the heating target room R has changed from the heating target room temperature Trr (ts1) along the predicted temperature profile Tre (t), the second set time ts2 has elapsed since the first set time ts1 has elapsed. The temperature at the time point (that is, the time point at which the time of ts1 + ts2 has elapsed) is derived as the underestimated predicted arrival temperature Tc (+ ts2). Then, a temperature obtained by adding a temperature width twice as large as the allowable temperature change width ΔT to the underestimated predicted arrival temperature Tc (+ ts2) is set as an upper limit temperature Tmax, and the allowable temperature change width ΔT from the appropriate predicted arrival temperature Tc (+ ts2). A normal determination temperature range is set in which the temperature obtained by subtracting is set to the lower limit temperature Tmin (step # 53 in FIG. 6).

When the controller 5 determines the proper heating state in the initial operation state determination step, or when it is determined that the underheating state is the underheating state, in the normal operation state determination step, the first second time after the first set time ts1 has elapsed. When the set time ts2 elapses, the room temperature sensor 3 detects the heating target room temperature Trr (+ ts2) after the first second set time ts2 elapses, and the heating target room temperature Trr (+ ts2) is used for normal determination. The heating state is determined by comparing with the temperature range (steps # 54 and # 55 in FIG. 7).
In step # 55, when it is determined that the heating target room temperature Trr (+ ts2) after the first second set time ts2 has elapsed is within the normal determination temperature range, it is determined that the heating state is appropriate, and the next cycle The heating capacity of the floor heating panel 1 is set to the same heating capacity as that of the immediately preceding cycle (corresponding to the current heating capacity) (steps # 56 and 57 in FIG. 7). In the heating capacity control in the next cycle, the thermal valve 8 is opened / closed at the same duty ratio as that in the immediately preceding cycle. That is, as the condition maintenance control, the condition maintenance control for maintaining the heating capacity at the current heating capacity and continuing the operation of the floor heating means M is executed.

If it is determined in step # 55 that the heating target room temperature Trr (+ ts2) after the first second set time ts2 has elapsed is higher than the upper limit temperature Tmax of the normal determination temperature range, it is determined that the state is an overheated state. The heating capacity of the floor heating panel 1 in the next cycle is set to a heating capacity one step lower than the heating capacity in the previous cycle (corresponding to the current heating capacity) (steps # 58 and # 5 in FIG. 7). In the heating capacity control of the next cycle, the thermal valve 8 is opened and closed at a duty ratio corresponding to the heating capacity one stage lower than the heating capacity of the immediately preceding cycle. That is, as the heating capacity lowering control, the heating capacity lowering control for controlling the operation of the floor heating means M is executed so that the heating capacity is lower than the current heating capacity.
In step # 55, when it is determined that the heating target room temperature Trr (+ ts2) after the first second set time ts2 has elapsed is lower than the lower limit temperature Tmin of the normal determination temperature range, it is determined that the state is underheating. The heating capacity of the floor heating panel 1 in the next cycle is set to a heating capacity that is one step higher than the heating capacity in the previous cycle (corresponding to the current heating capacity) (steps # 60 and 61 in FIG. 7). In the heating capacity control of the next cycle, the thermal valve 8 is opened / closed at a duty ratio corresponding to the heating capacity one stage higher than the heating capacity of the immediately preceding cycle. That is, as the heating capacity increase control, the heating capacity increase control for controlling the operation of the floor heating means M so as to increase the heating capacity beyond the current heating capacity is executed.

The control unit 5 determines the normal operation state even when it is determined as the overheating state in the initial operation state determination step, similarly to the case where it is determined as the proper heating state or the underheating state in the initial operation state determination step. The process is executed, and the room temperature sensor 3 detects the heating target room temperature Trr (+ ts2) after the first second set time ts2 has elapsed, and the heating target room temperature Trr (after the first second set time ts2 has elapsed) + Ts2) is compared with the temperature range for normal determination to determine the heating state (steps # 62 and 63 in FIG. 8).
In step # 63, when it is determined that the heating target room temperature Trr (+ ts2) after the first second set time ts2 has elapsed is within the normal determination temperature range, it is determined that the heating state is appropriate, and the next cycle The heating capacity of the floor heating panel 1 is set to the same heating capacity as that of the immediately preceding cycle (corresponding to the current heating capacity), and the process returns (steps # 64 and 65 in FIG. 8). Since the heating operation of the floor heating panel 1 is stopped by determining the overheating state in the initial operation state determination step, in the heating capacity control of the next cycle, the valve closing state of the thermal valve 8 is maintained, The heating operation is stopped. That is, as the condition maintenance control, the condition maintenance control for maintaining the heating capacity at the current heating capacity and continuing the operation of the floor heating means M is executed.

  If it is determined in step # 63 that the heating target room temperature Trr (+ ts2) after the first second set time ts2 has elapsed is higher than the upper limit temperature Tmax of the normal determination temperature range, it is determined that the state is an overheated state. A message for determining that the other heating device AC is in operation and then prompting the user to confirm whether or not the other heating device is in operation, for example, “other heating device Is displayed on the display 66, and then the heating capacity of the floor heating panel 1 of the next cycle is set to the heating stop and the process returns (step # 66 in FIG. 8). 69). Since the heating operation of the floor heating panel 1 is stopped in the initial operation state determination step, the heating operation of the floor heating panel 1 is stopped. Therefore, in the heating capacity control of the next cycle, the closed state of the thermal valve 8 is maintained. The heating operation is stopped. That is, as the heating capacity lowering control, the heating capacity lowering control for controlling the operation of the floor heating means M so as to stop the heating operation of the floor heating panel 1 is executed.

  In Step # 63, when it is determined that the heating target room temperature Trr (+ ts2) after the first second set time ts2 has elapsed is lower than the lower limit temperature Tmin of the normal determination temperature range, it is determined that the state is underheating. The heating capacity of the floor heating panel 1 in the next cycle is set to a heating capacity one step higher than the heating capacity in the previous cycle (corresponding to the current heating capacity) (steps # 70 and 71 in FIG. 8). In the heating capacity control of the next cycle, the thermal valve 8 is opened / closed at a duty ratio corresponding to the heating capacity one stage higher than the heating capacity of the immediately preceding cycle. That is, as the heating capacity increase control, the heating capacity increase control for controlling the operation of the floor heating means M so as to increase the heating capacity beyond the current heating capacity is executed.

  Next, based on the flowcharts shown in FIGS. 9 and 10, the second and subsequent normal temperature range setting step, the second and subsequent normal operation state determination step, and the second and subsequent normal operation state determination step The heating capacity control based on the determination result will be described. The second and subsequent normal temperature range setting steps and the second and subsequent normal operation state determination steps are further performed after the first set time ts1 and the first second set time ts2 have elapsed after the start of operation. 2 is executed every time the set time ts2 elapses (that is, every time ts1 + nts2 (n is a natural number of 2 or more) elapses). Here, in order to simplify the description, “ts1 + nts2” is abbreviated as “+ nts2” in the following description and drawings.

When the controller 5 determines that the heating state is appropriate in the previous normal driving state determination step, the controller 5 determines that the heating state is appropriate in the first normal driving state determination step (step # 50 in FIG. 6). 51), a temperature range for normal determination is set (steps # 80 and 81 in FIG. 9).
Further, when the controller 5 determines that it is in an overheated state in the immediately preceding normal operation state determination step, the control unit 5 is similar to the case where it is determined in the first normal operation state determination step that it is in an overheated state (step # in FIG. 6). 50, 52), the temperature range for normal determination is set (steps # 80, 82 in FIG. 9).
Further, when the controller 5 determines the underheating state in the immediately preceding normal operation state determination step (step # 80), the control unit 5 (as in the case of determining the underheating state in the first normal operation state determination step) ( Steps # 50 and 52 in FIG. 6 are set, and a temperature range for normal determination is set (steps # 80 and 83 in FIG. 9).

Subsequently, when the second second set time ts2 has elapsed (that is, when the time ts1 + nts2 has elapsed), the control unit 5 uses the room temperature sensor 3 to perform the heating target room after the second second set time ts2 has elapsed. The temperature Trr (+ nts2) is detected, and the heating target room temperature Trr (+ nts2) is compared with the normal temperature determination temperature range to determine the heating state (steps # 84 and 85 in FIG. 10).
In step # 85, when it is determined that the heating target room temperature Trr (+ nts2) after the second second set time ts2 has elapsed is within the normal determination temperature range, it is determined that the heating state is appropriate, and the next cycle The heating capacity of the floor heating panel 1 is set to the same heating capacity as that of the immediately preceding cycle (corresponding to the current heating capacity) (steps # 86 and 87 in FIG. 10). In the heating capacity control in the next cycle, the thermal valve 8 is opened / closed at the same duty ratio as that in the immediately preceding cycle. That is, as the condition maintenance control, the condition maintenance control for maintaining the heating capacity at the current heating capacity and continuing the operation of the floor heating means M is executed. However, when the heating operation of the floor heating panel 1 is stopped in the immediately preceding cycle, the stopped state is continued.

  If it is determined in step # 85 that the heating target room temperature Trr (+ nts2) after the second second set time ts2 has elapsed is higher than the upper limit temperature Tmax of the normal determination temperature range, it is determined that the state is an overheating state. The heating capacity of the floor heating panel 1 in the next cycle is set to a heating capacity one step lower than the heating capacity in the immediately preceding cycle (corresponding to the current heating capacity) (steps # 88 and 89 in FIG. 10). In the heating capacity control of the next cycle, the thermal valve 8 is opened and closed at a duty ratio corresponding to the heating capacity one stage lower than the heating capacity of the immediately preceding cycle. That is, as the heating capacity lowering control, the heating capacity lowering control for controlling the operation of the floor heating means M is executed so that the heating capacity is lower than the current heating capacity. However, when the heating capacity of the immediately preceding cycle is the lowest heating capacity, the thermal valve 8 is closed to stop the heating operation of the floor heating panel 1, and the heating operation of the floor heating panel 1 is stopped in the immediately preceding cycle. If is stopped, the stopped state is continued.

  In step # 85, when it is determined that the heating target room temperature Trr (+ nts2) after the second second set time ts2 has elapsed is lower than the lower limit temperature Tmin of the normal temperature determination temperature range, it is determined that the state is underheating. The heating capacity of the floor heating panel 1 in the next cycle is set to a heating capacity one step higher than the heating capacity in the previous cycle (corresponding to the current heating capacity) (steps # 90 and 91 in FIG. 10). In the heating capacity control of the next cycle, the thermal valve 8 is opened / closed at a duty ratio corresponding to the heating capacity one stage higher than the heating capacity of the immediately preceding cycle. That is, as the heating capacity increase control, the heating capacity increase control for controlling the operation of the floor heating means M so as to increase the heating capacity beyond the current heating capacity is executed. However, when the heating operation of the floor heating panel 1 is stopped in the immediately preceding cycle, the thermal valve 8 is opened / closed at a duty ratio corresponding to the lowest heating capacity.

  That is, in this embodiment, when the control unit 5 determines that the heating state is the proper heating state in the operation state determination step in the execution of the heating capacity control, the heating capacity set in the reference heating condition or the current heating capacity is set. If the condition maintenance control for maintaining and continuing the operation of the floor heating means M is executed and it is determined in the operation state determination step that the state is an overheating state, the heating capacity of the floor heating panel 1 is determined as the reference heating condition. The heating capacity lowering control is performed to control the operation of the floor heating means M so as to lower the heating capacity or the current heating capacity or to stop the heating operation of the floor heating panel 1.

Further, a first set time ts1, which is the first set time after the start of operation, is set as the predetermined set time.
And the control part 5 sets the temperature range for initial determination for determining an appropriate heating state in the initial temperature range setting process as a temperature range setting process at the time of the 1st setting time ts1, and the operation state determination When it is determined in the initial operation state determination step when the first set time ts1 as a step has passed, based on the temperature detected by the room temperature sensor 3 when the first set time ts1 has passed, that the heating state is appropriate When the condition maintenance control is executed and it is determined that the state is an excessive heating state, the heating capacity reduction control is executed.

In addition, when the second set time ts2 has elapsed after the first set time ts1 has elapsed,
A normal temperature range setting step of setting a normal determination temperature range for determining an appropriate heating state at the time when the second set time ts2 has elapsed based on the predicted temperature profile;
Based on the detected temperature of the room temperature sensor 3 at the time when the second set time ts2 has elapsed, if the detected temperature is within the normal determination temperature range, it is determined that the heating state is appropriate, and the detected temperature is determined as normal. When the temperature range is exceeded, the normal operation state determination step for determining that it is in an overheating state is executed in order,
When it determines with it being an overheating state in both processes of an initial operation state determination process and the 1st normal operation state determination process, it is comprised so that it may determine with the state where other heating apparatus AC is drive | operating. Will be.

  Further, the control unit 5 sequentially executes the normal temperature range setting process and the normal operation state determination process every time the second set time ts2 elapses after the first set time ts1 elapses, thereby determining the normal operation state. When it is determined that the heating state is appropriate in the process, the condition maintenance control is executed, and when it is determined that the heating state is excessive, the heating capacity reduction control is executed.

When the control unit 5 determines that the heating state is appropriate in the initial operation state determination step or the immediately preceding normal operation state determination step, the upper limit of the normal determination temperature range is determined in the normal temperature range setting step. The temperature Tax is
The second set time when the temperature of the room to be heated R changes along the predicted temperature profile from the detected temperature of the room temperature sensor 3 at the time when the first set time ts1 has passed or when the immediately preceding second set time ts2 has passed. Set a temperature higher by a predetermined temperature change allowable width ΔT on the high temperature side than the predicted predicted arrival temperature at the time when ts2 has elapsed,
The lower limit temperature Tmin of the temperature range for normal judgment is
Set the temperature lower by the temperature change tolerance ΔT on the low temperature side than the predicted temperature reached at the appropriate time,
In the initial operation state determination step or the immediately preceding normal operation state determination step, when it is determined that the state is an overheating state, in the normal temperature range setting step, the upper limit temperature Tax of the normal determination temperature range is set,
The second set time when the temperature of the room to be heated R changes along the predicted temperature profile from the detected temperature of the room temperature sensor 3 at the time when the first set time ts1 has passed or when the immediately preceding second set time ts2 has passed. Set the temperature higher by the temperature change allowable width ΔT on the high temperature side than the predicted temperature at the time of overheating when ts2 has elapsed,
The lower limit temperature Tmin of the temperature range for normal judgment is
The temperature is set to be lower by a temperature range wider than the temperature change allowable range ΔT on the low temperature side (twice ΔT in this embodiment) with respect to the predicted reached temperature during overheating.

  In addition, when the control unit 5 determines that the temperature detected by the room temperature sensor 3 is lower than the initial determination temperature range in the initial operation state determination step and the heating state of the heating target room R is an excessively small underheating state, and In the normal operation state determination step, when it is determined that the temperature detected by the room temperature sensor 3 is below the normal determination temperature range and is in an underheating state, the heating capacity of the floor heating panel 1 is determined by the reference heating condition. The heating capacity increase control is performed to control the operation of the floor heating means M so as to increase the current heating capacity or the current heating capacity.

In addition, when the control unit 5 determines that the underheating state is in the initial operation state determination step or the immediately preceding normal operation state determination step, the lower limit of the normal determination temperature range is determined in the normal temperature range setting step. The temperature Tmin,
The second set time when the temperature of the room to be heated R changes along the predicted temperature profile from the detected temperature of the room temperature sensor 3 at the time when the first set time ts1 has passed or when the immediately preceding second set time ts2 has passed. Set the temperature lower by the temperature change allowable width ΔT on the low temperature side than the predicted temperature at the time of underheating when ts2 has elapsed,
The upper limit temperature Tmax of the temperature range for normal judgment is
The temperature is set to be higher by a temperature range wider than the temperature change allowable range ΔT on the high temperature side (twice ΔT in this embodiment) with respect to the predicted temperature at the time of underheating.

[Another embodiment]
Next, another embodiment will be described.
(A) The form for executing the temperature range setting step and the operation state determination step is the form described in the above embodiment, that is, when the first set time has elapsed after the start of operation, the initial temperature range setting step and the initial operation state And the normal temperature range setting step and the normal operation state determination step are repeatedly executed every time the second set time elapses after the first set time elapses. It is not something.
For example, only the initial temperature range setting process and the initial operation state determination process may be executed. Or after performing an initial temperature range setting process and an initial driving | running state determination process, the form which performs a normal temperature range setting process and a normal driving | running state determination process only once may be sufficient.

(B) The execution mode of the learning operation is not limited to the mode described in the above embodiment, that is, the mode of execution until the temperature detected by the room temperature sensor 3 reaches a temperature equilibrium state where the temperature is substantially in equilibrium. For example, it may be executed while a preset set time elapses. In this case, the set time may be set to a time corresponding to a period until the temperature equilibrium state is reached, or may be set to a time corresponding to a period after the temperature equilibrium state is reached.

(C) The heating capacity reduction control when it is determined that the overheating state is determined in the initial operation state determination step is limited to the control exemplified in the above embodiment, that is, the control mode for stopping the heating operation of the floor heating panel 1. For example, a control form in which the floor heating means M is controlled so as to lower the heating capacity of the floor heating panel 1 to be lower than the heating capacity defined by the reference heating condition can be adopted.

(D) In the above embodiment, when it is determined in the initial operation state determination step or the normal operation state determination step that the underheating state is set, the floor heating is performed so that the heating capacity of the floor heating panel 1 is increased from the current heating capacity. Although the heating capacity increase control for controlling the operation of the means M has been executed, such heating capacity increase control may be omitted. In that case, a message for prompting the user to check whether the window or door of the room R to be heated is not open, for example, a message such as “Is the window or door open?” Is displayed on the display 66. You may display.

(E) The mode for setting the normal temperature determination temperature range set in the normal temperature range setting step is not limited to the mode exemplified in the above embodiment. For example, in the above embodiment, the reference temperature of the normal determination temperature range is determined from the detected temperature of the room temperature sensor 3 when the first set time ts1 or the immediately preceding second set time ts2 has elapsed. Although the temperature at the time when the second set time ts2 in the case where the temperature of the heating target room R has changed along (t) has passed, the time at which the second set time ts2 in the predicted temperature profile Tre (t) has passed It is good also as temperature. Further, the temperature range of the normal determination temperature range can be changed and set as appropriate.

(F) The specific example of the heating source of the floor heating panel 1 is not limited to the example illustrated in said embodiment. For example, when the heat medium flow pipe 12 through which the heat medium heated by the heat source device 2 flows is used as the heating source of the floor heating panel 1 as in the above embodiment, a gas burner is used as the heat source device 2 as the heat source. And those using an electric heat pump as a heat source can be used.
An electric heating means such as a heating wire may be used as a heating source for the floor heating panel 1.

  As described above, it is possible to provide a floor heating apparatus operating method and a floor heating apparatus capable of operating the space to be heated appropriately so as to be able to appropriately heat the heating target space even when operated together with other heating apparatuses. .

1 Floor heating panel 3 Room temperature sensor (space temperature detection means)
4 Outside air temperature sensor (environmental temperature detection means)
5 Control unit (control means)
AC Other heating device M Floor heating means R Heating target room (heating target space)

Claims (8)

A floor heating apparatus provided with a floor heating panel that is installed on the floor of the space to be heated and operates to heat the space to be heated, and is provided with a floor heating means capable of adjusting the heating capacity of the floor heating panel. Driving method,
Space temperature detection means for detecting the temperature of the space to be heated;
Environmental temperature detection means for detecting the temperature of the outside air or the temperature of the location that fluctuates according to the temperature of the outside air as the environmental temperature; and
Performing a learning operation of operating the floor heating means with a heating capacity determined under a predetermined reference heating condition in a state where another heating device capable of heating the space to be heated is not operated, the space temperature Based on the detection information of the detection means, a time series heating target detected by the space temperature detection means is a reference temperature profile that is a transition with time in the temperature of the heating target space from the start time of the learning operation. A learning operation step of acquiring the room temperature as a reference environmental temperature based on the detection information of the environmental temperature detection means, and acquiring the environmental temperature during the learning operation as a reference environmental temperature.
Prior to actual operation of the floor heating means, the environmental temperature detected by the environmental temperature detection means is acquired as the actual operating environment temperature, and the difference between the reference environmental temperature and the actual operating environment temperature and the Based on the reference temperature profile, as a predicted temperature profile , a time-series predicted heating target room temperature obtained by adding a difference obtained by subtracting the reference environmental temperature from the actual operating environment temperature to each of the time-series heating target room temperatures. the predicted temperature profile deriving step of deriving a,
Based on the predicted temperature profile, for determining a proper heating state in which the heating state of the space to be heated is appropriate at a time when a predetermined set time has elapsed from the start of operation of the floor heating means in the predicted temperature profile. A temperature range setting step for setting a temperature range for judgment,
The detected temperature is within the determination temperature range based on the temperature detected by the space temperature detecting means at the time when the predetermined set time has elapsed after the floor heating means is operated under the reference heating condition. Is determined to be in the proper heating state, and when the detected temperature exceeds the determination temperature range, the operation state determination is performed to determine that the heating state of the heating target space is an excessively excessive heating state. Execute the process in order,
Based on the determination result in the operation state determination step, execute heating capacity control for controlling the heating capacity of the floor heating panel ,
In the execution of the heating capacity control, when it is determined in the operation state determination step that the heating state is appropriate, the floor heating unit maintains the heating capacity defined in the reference heating condition or the current heating capacity. If the condition maintenance control for continuing the operation is performed and it is determined in the operation state determination step that the overheated state is present, the heating capacity of the floor heating panel is determined according to the reference heating condition or An operation method of a floor heating apparatus that executes heating capacity lowering control for controlling the operation of the floor heating means to lower the current heating capacity or to stop the heating operation of the floor heating panel . As the predetermined set time, a first set time that is the first set time after the start of operation is set,
In the initial temperature range setting step as the temperature range setting step, an initial determination temperature range for determining the appropriate heating state at the time when the first set time has elapsed,
In the initial operation state determination step when the first set time has elapsed as the operation state determination step, the appropriate heating state based on the detected temperature of the space temperature detection means when the first set time has elapsed The operation method of the floor heating apparatus according to claim 1, wherein the condition maintaining control is executed when it is determined that the heating capacity is reduced, and the heating capacity reduction control is executed when it is determined that the state is the overheating state . When the second set time elapses after the first set time elapses,
A normal temperature range setting step for setting a normal determination temperature range for determining the appropriate heating state at the time when the second set time has elapsed based on the predicted temperature profile;
Based on the detected temperature of the space temperature detecting means at the time when the second set time has elapsed, when the detected temperature is within the normal determination temperature range, it is determined that the heating state is appropriate, and the detected temperature When the normal temperature determination temperature range is exceeded, the normal operation state determination step for determining that the overheating state is in order,
The method according to claim 2 , wherein when it is determined that the overheating state is in both the initial operation state determination step and the normal operation state determination step, it is determined that the other heating device is in operation. The operation method of the described floor heating apparatus. After the elapse of the first set time, each time the second set time elapses, the normal temperature range setting step and the normal operation state determination step are sequentially executed.
The condition maintaining control is executed when it is determined in the normal operation state determination step that the heating state is appropriate, and the heating capacity reduction control is executed when it is determined that the state is the overheating state. 3. A method for operating the floor heating apparatus according to 3. In the initial operation state determination step or in the immediately preceding normal operation state determination step, when it is determined that the proper heating state, the upper limit temperature of the normal determination temperature range in the normal temperature range setting step,
When the temperature of the space to be heated has changed along the predicted temperature profile from the temperature detected by the space temperature detection means at the time when the first set time has elapsed or the immediately preceding second set time has elapsed. 2 Set the temperature higher than the predicted predicted arrival temperature when the set time has elapsed by a predetermined temperature change tolerance on the high temperature side,
The lower limit temperature of the temperature range for normality determination,
Set the temperature lower by the allowable temperature change width on the low temperature side than the predicted temperature at the appropriate time,
In the initial operation state determination step or the immediately preceding normal operation state determination step, if it is determined that the overheating state, in the normal temperature range setting step, the upper limit temperature of the normal determination temperature range,
When the temperature of the space to be heated has changed along the predicted temperature profile from the temperature detected by the space temperature detection means at the time when the first set time has elapsed or the immediately preceding second set time has elapsed. 2) Set the temperature higher than the predicted temperature at the time of overheating at the time when the set time has elapsed by a temperature change allowable width higher on the high temperature side,
The lower limit temperature of the temperature range for normality determination,
The operation method of the floor heating apparatus according to claim 4, wherein a temperature lower by a temperature range wider than the temperature change allowable range is set on a low temperature side with respect to the predicted overheating time . In the initial operation state determination step, when the temperature detected by the space temperature detection means falls below the initial determination temperature range and it is determined that the heating state of the space to be heated is an excessively underheated state, and When it is determined that the detected temperature of the space temperature detecting means is below the normal temperature range for temperature detection in the under-heating state in the hourly operating state determination step, the heating capacity of the floor heating panel is determined based on the reference heating condition. The operation method of the floor heating apparatus of Claim 4 or 5 which performs the heating capacity increase control which controls the action | operation of the said floor heating means so that it may increase rather than the heating capacity currently determined or the present heating capacity . In the initial operation state determination step or the immediately preceding normal operation state determination step, when it is determined that the underheating state, the normal temperature range setting step, the lower limit temperature of the normal determination temperature range,
When the temperature of the space to be heated has changed along the predicted temperature profile from the temperature detected by the space temperature detection means at the time when the first set time has elapsed or the immediately preceding second set time has elapsed. 2 Set the temperature lower than the predicted reached temperature at the time of underheating at the time when the set time has elapsed by a predetermined temperature change tolerance on the low temperature side,
The upper limit temperature of the temperature range for normal judgment is
The operation method of the floor heating apparatus according to claim 6 , wherein the temperature is set to be higher by a temperature range wider than the allowable temperature change range on the high temperature side with respect to the predicted reached temperature during underheating . A floor heating apparatus provided with a floor heating panel that is installed on the floor of the space to be heated and operates to heat the space to be heated, and is provided with a floor heating means capable of adjusting the heating capacity of the floor heating panel. Because
Space temperature detection means for detecting the temperature of the space to be heated;
Environmental temperature detection means for detecting the temperature of the outside air or the temperature of the portion that varies according to the temperature of the outside air as the environmental temperature;
Control means for controlling the operation,
The control means is
Performing a learning operation of operating the floor heating means with a heating capacity determined under a predetermined reference heating condition in a state where another heating device capable of heating the space to be heated is not operated, the space temperature Based on the detection information of the detection means, a time series heating target detected by the space temperature detection means is a reference temperature profile that is a transition with time in the temperature of the heating target space from the start time of the learning operation. A learning operation step of acquiring the room temperature as a reference environmental temperature based on the detection information of the environmental temperature detection means, and acquiring the environmental temperature during the learning operation as a reference environmental temperature.
Prior to actual operation of the floor heating means, the environmental temperature detected by the environmental temperature detection means is acquired as the actual operating environment temperature, and the difference between the reference environmental temperature and the actual operating environment temperature and the Based on the reference temperature profile, as a predicted temperature profile, a time-series predicted heating target room temperature obtained by adding a difference obtained by subtracting the reference environmental temperature from the actual operating environment temperature to each of the time-series heating target room temperatures. Predicting temperature profile deriving step,
Based on the predicted temperature profile, for determining a proper heating state in which the heating state of the space to be heated is appropriate at a time when a predetermined set time has elapsed from the start of operation of the floor heating means in the predicted temperature profile. A temperature range setting step for setting a temperature range for judgment,
The detected temperature is within the determination temperature range based on the temperature detected by the space temperature detecting means at the time when the predetermined set time has elapsed after the floor heating means is operated under the reference heating condition. Is determined to be in the proper heating state, and when the detected temperature exceeds the determination temperature range, the operation state determination is performed to determine that the heating state of the heating target space is an excessively excessive heating state. Execute the process in order,
Based on the determination result in the operation state determination step, execute heating capacity control for controlling the heating capacity of the floor heating panel,
The control means is
In the execution of the heating capacity control, when it is determined in the operation state determination step that the heating state is appropriate, the floor heating unit maintains the heating capacity defined in the reference heating condition or the current heating capacity. If the condition maintenance control for continuing the operation is performed and it is determined in the operation state determination step that the overheated state is present, the heating capacity of the floor heating panel is determined according to the reference heating condition or A floor heating apparatus that performs heating capacity lowering control for controlling the operation of the floor heating means to lower the current heating capacity or to stop the heating operation of the floor heating panel .

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