JP3394655B2 - Heat storage control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [0001] TECHNICAL FIELD The present invention relates to a room using a heat storage material.
Technology related to heating and cooling inside the building,
The present invention relates to a technique for controlling a heat storage process for a heat storage material. [0002] 2. Description of the Related Art Room temperature is controlled by heating or cooling the room.
For example, heat storage
Floor heating systems using materials are known. This is
Heat the flooring with the heat accumulated in the heating material and gradually release it from the floor.
This is a system for heating by heating. With this system
For example, a heat storage material and an electric heater are placed under the floor material.
The electricity is supplied to the electric heater late at night when the electricity rate is low, and the heat storage material
Heat storage to the floor material during the day by radiating heat from the heat storage material.
Warm. At this time, in the current system, predetermined storage is performed.
The heat control device controls the heat storage process for the heat storage material.
ing. FIG. 15 shows the control by the current heat storage control device.
FIG. Referring to FIG.
As a basic operation, the heat storage control device starts predetermined power supply.
At the time (22:00 in the figure), the power supply to the heater is started,
At a predetermined power supply end time (6:00 in the figure),
Stop energization. The power supply start and end times are
Usually, it is made to correspond to a late-night electricity discount time zone. Accumulation
The thermal control device further prevents overheating of the heat storage material.
As a result, the heat storage material reaches a predetermined upper limit temperature (35 ° C in the figure).
Power supply to the heater is interrupted when
You. This maximum temperature depends on the type of heat storage material and the floor heating system.
Raises indoor temperature during heating according to installation environment, etc.
It is determined from the viewpoint of not allowing too much. Depends on heater
If heating is interrupted, the temperature of the heat storage material will gradually decrease.
The heat control device determines that the temperature of the heat storage material
Resumes power supply to the heater when the temperature drops to 32 ° C)
It is supposed to. This is enough to make the heating
To keep the temperature of the heat storage material above a certain level.
is there. Thus, the heat storage control device determines the power supply end time
Until the above, the ON / OFF operation of the electric heater is repeated.
The temperature of the heat storage material is between the lower limit temperature and the upper limit temperature.
Heat storage within the temperature range (32 ° C to 35 ° C in the figure)
Controlling the course. Hereinafter, this control is referred to as a conventional ON / OFF control.
This is called OFF control. [0004] As shown in FIG.
In the conventional ON / OFF control as described above,
Normally, several ON / OFF operations are performed before the power supply end time.
Again, the energization of the heater other than the first
Is unnecessary. Therefore, unnecessary power is not
Is consumed, reducing heating costs and saving energy.
It was not always optimal from the viewpoint of. The present invention has been made to solve the above problems.
The heat storage time of the heat storage material is controlled to
Thermal storage control device that can reduce energy consumption, and
And to provide a temperature control system utilizing this.
Target. [0006] Means for Solving the Problems To solve the above problems,
For this reason, the heat storage control device according to the present invention
The heat or cold stored in the heat storage material after the elapse of the time period
Temperature control that regulates indoor temperature by radiating heat to the room
It is a heat storage control device for the node system, and the temperature of the heat storage material or
The temperature of the heat medium whose temperature changes depending on the temperature of the heat storage material
The temperature is measured at a predetermined time and calculated based on the measured temperature.
The heat storage in the heat storage material is started at the specified time
It is characterized by: Normally, heat storage material stores heat by heating.
Cooling allows the storage of cold heat.
ing. Heat storage material that can store heat for indoor heating
Can be used, and for cooling, it can store cold heat
Thermal storage materials (such as ice) can be used. [0008] In addition, the above-described time for performing heat storage in the heat storage material.
Examples of the inter-zone include late-night electricity rate discount periods.
I can do it. [The temperature changes depending on the temperature of the heat storage material]
Specific examples of the `` heat medium '' include, for example, indoor air and the like.
No. In addition, the heat storage control device of the present invention is installed in a floor heating system.
When applied to systems, floor materials and the like also apply. [0010] The heat storage control device according to the present invention has the above-described heat storage control device.
By measuring the temperature of the material or heating medium, the desired heating or
Determining the appropriate heat storage start time for cooling
I can do it. For this reason, as always,
Electricity starts at midnight power start time,
Compared to a control device that repeatedly interrupts and resumes heat storage,
It is possible to store heat in the heat storage material only for the necessary time.
Reduce the energy required for heat storage
Can be. [0011] The heat storage control device according to the present invention includes the above heat storage control device.
Based on the measured temperature of the material or heat medium at a given time
The heat storage start time at the time of heat storage is corrected, and the time after this correction
The next heat storage may be started. What
The correction of the heat storage start time is based on the measured temperature of the heat storage material or heat medium.
Degrees and a preset reference temperature (for example, the desired heating
Or the ideal temperature suitable for cooling)
Can be performed. According to the heat storage control device of this aspect,
As mentioned above, the energy required for heat storage can be reduced
In addition, the ideal heating state or the
Can correct the deviation from the ideal cooling condition next time.
To obtain the desired heating or cooling condition reliably and easily
Will be able to [0013] The heat storage control device according to the present invention comprises a heat storage material or
Based on the measured temperature of the heat medium, the storage required for heat storage in the heat storage material
The heat time is predicted, and the predicted heat storage time is calculated at the end of the time period.
Starts heat storage at the time calculated backward from the end time
May be. [0014] The heat storage control device of such an embodiment has the above-described configuration.
Perform desired heating or cooling from the temperature of the heat storage material or heat medium
Heat storage time required (usually heating or cooling the heat storage material
The heat storage time) and appropriate heat storage according to this heat storage time
Since the start time can be set, the energy required for heat storage
Energy can be reduced more than before. [0015] The heat storage control device according to this aspect further comprises:
Before the predetermined time to measure the temperature of the heat material or heat medium
Measure the temperature of the heat storage material or heat medium at the time and estimate the heat storage time
Minutes are calculated from the end time of the time zone.
Compensate based on the temperature measured here.
It is good to start heat storage every hour. In addition,
The correction of the time depends on the measured temperature of the heat storage material or heat medium and the preset time.
A defined reference temperature (for example, the desired heating or cooling
The ideal temperature suitable for
More can be done. By correcting as described above, the previous heating
Or from the ideal heating state or ideal cooling state that occurred during cooling
Can be corrected next time,
In addition to reducing the energy required for heat storage,
The desired heating or cooling condition can be reliably and easily obtained.
Become so. The heat storage control device according to the present invention is characterized in that
A plurality of times in the time is the temperature measurement time of the heat storage material or heat medium
(A) at one temperature measurement time
Measuring the temperature of the heat storage material or heat medium; (b)
Heat storage required for heat storage of the heat storage material based on this measured temperature
Estimating the time; (c) the estimated heat storage time
Is calculated from the end time of the time zone and the heat storage start candidate time
And (d) the heat storage start candidate time and temperature.
And the difference between the two times is within the specified tolerance.
Or the heat storage start candidate time is earlier than the temperature measurement time
Start the heat storage of the heat storage material when the time is
And the difference between the two times is determined
Is exceeded, and the heat storage start candidate time is
If the time is later than the measurement time, the next temperature measurement
The above processing may be performed every moment. When the temperature is measured only at a single measurement time
In this case, the heat storage start time based on the temperature at that measurement time is reached.
If it takes a long time for the
Prediction of the above heat storage time due to disturbances such as changes in temperature and wind speed
While the difference may be large, the heat storage control
The device has multiple temperature measurement times set and
If the difference between the fixed time and the heat storage start candidate time is large,
Based on the temperature of the heat storage material or heat medium at the time
By repeatedly finding the heat storage start candidate time
Since the above prediction error is reduced, heat is stored at a more appropriate time.
Can be started to determine the desired heating or cooling condition.
Real and easy to obtain. In the heat storage control device of this aspect,
(E) at a predetermined time before the time zone,
Or a step of measuring the temperature of the heat medium;
Prior to comparing the initial candidate time with the temperature measurement time,
Step of correcting candidate heat storage start time based on constant temperature
And in the step (d),
The time after correction is compared with the temperature measurement time.
May be. In this case, it occurs during the previous heating or cooling.
The deviation from the ideal heating condition or cooling condition
The desired heating or cooling condition.
It can actually be realized. Next, the temperature control system according to the present invention comprises:
(A) heat storage material, and (b) heat storage means for storing heat in the heat storage material
(C) any one of the heat storage control devices described above;
An electric power source that can supply electric power for heat storage to heat means
And the heat or cold stored in the heat storage material is radiated.
Temperature control system that adjusts the indoor temperature by
And the heat storage control device supplies power from the power source to the heat storage means.
To start the heat storage in the heat storage material.
Is characterized by the fact that This temperature control system stores heat from an electric power source.
Switch means for controlling the power supply to the means.
At this time, the heat storage control device
From a power source to a heat storage means by outputting a control signal to
May be started. The above-mentioned heat storage means includes a heat storage material.
A heating device (electric heater or the like), a cooling device, or the like is applicable. Ma
In addition, as the “electric power for heat storage”, the heat storage
Electric power required to store heat in the heat storage material, for example,
Heating power and cooling supplied to the resistance heating element of the electric heater
The driving power of the device corresponds to the driving power. Also the above switch
As means, for example, the input terminal to the power source, the heat storage means
Output terminals are connected to each other and control terminals
Are connected. [0024] BRIEF DESCRIPTION OF THE DRAWINGS FIG.
An embodiment of the present invention will be described in detail. In the description of the drawings
In the drawings, the same elements are denoted by the same reference numerals, and overlapping descriptions are given.
Is omitted. In addition, the dimensional ratios in the drawings
Do not match. (Embodiment 1) FIG. 1 shows a temperature according to the present invention.
1 is a schematic diagram illustrating a first embodiment of an adjustment system. This
Is a regenerative floor heating system,
The heat storage material 10, the electric heater 12, and the temperature sensor 14 are floor materials.
Buried in In FIG. 1, flooring is used as flooring material.
Raising material 1, gravel concrete 2, gravel concrete
2, a wire mesh 3, a heat insulating material 4, and
Concrete 5 is shown in each case. Heat storage material 10,
The electric heater 12 and the temperature sensor 14 are
It is buried in Port 2. As the heat storage material 10, any known material,
For example, concrete, paraffin, nitrate, sodium sulfate
Lithium decahydrate (NaSO_Four・ 10H_TwoO) as the main component
Can be used. This heat storage material 10
It is block-shaped, and in the case of this embodiment,
A plurality of heat storage material blocks 10 are embedded in the concrete 2.
Have been. In each block 10 of the heat storage material,
A number of electric heaters 12 are provided. This electric heater
12 heats the heat storage material 10 and stores heat in the heat storage material 10
It is for doing. This electric heater 12 is elongated
Multiple cylindrical heating elements are surrounded by an insulator to form a cable
Cable heater with heating power at both ends.
Lead wires for supply are connected. Each electric heater
The heater 12 is provided in parallel with the upper surface of the heat storage material block 10.
Buried in a plurality of grooves,
It is laid in the concrete 2. Heat storage material block
In the vicinity of 10, a temperature for measuring the temperature of the heat storage material 10 is shown.
The degree sensor 14 is mounted on the upper surface of the heat storage material block 10.
It is installed like this. In the present embodiment, the temperature sensor
The heat sink 14 is not provided for each block of the heat storage material.
It is installed at a rate of one every few blocks,
The temperature measured via the temperature sensor 14 is determined by a plurality of heat storage materials.
It is treated as a temperature common to blocks
You. Each electric heater 12 is provided with a gate circuit 24.
The power source 22 is electrically connected via the
2 can supply heat-generating power to each electric heater 12.
It is possible. The gate circuit 24 is connected to the power source 22
By permitting or prohibiting the energization of each electric heater 12,
The power supply to the power supply 12 can be controlled.
Heat storage controller 20 is connected to the control terminal of gate circuit 24
The heat storage control device 20 is connected to the power source 22 by a cable.
It is possible to switch ON / OFF of the power supply to the bull heater 12.
Can be. That is, the heat storage control device 20
When a predetermined control signal is sent to the gate circuit 24, the gate opens.
State or closed state, and energization of the electric heater is permitted or prohibited.
It has been stopped. The heat storage control device 20
Output from the temperature sensor 14
The electric signal is received, and the temperature of the heat storage material 10 is
The degree can be measured. In this embodiment,
Is one heat storage control device 2 for one temperature sensor 14.
0 is connected, and one temperature sensor 14 has jurisdiction.
A plurality of electric heaters embedded in a plurality of heat storage material blocks 10
The power supply to the temperature sensor 12 is connected to the temperature sensor 14.
The heat storage control device 20 performs the operation. A feature of the present invention is that the control of the heat storage control device 20 is performed.
In operation. Hereinafter, this control operation will be described. Note that
In the following, this embodiment will be described in order to distinguish it from other embodiments described later.
The heat storage control device in the form is represented by adding a suffix a to the reference numeral 20.
And [0029]The heat storage control device 20a according to the present embodiment includes:Ma
The temperature of the heat storage material 10 reaches the preset upper limit temperature
When the power supply to the electric heater 12 is interrupted,
When the temperature drops to the lower limit temperature
It has become. In conventional ON / OFF control, the upper limit temperature
Degree and minimum temperature, set the room temperature during heating appropriately
From the viewpoint, the temperature of the heat storage material 10 is within a temperature range suitable for heating.
This is set to maintain
Different from that. That is, in the present embodiment, the lower limit temperature
The temperature is higher than the temperature required for heating as in the past
Temperature is set to maintain
Set to prevent danger from overheating of heating material
Need to set to control the temperature at the time of heating
There is no. For this reason, the upper limit temperature of this embodiment is usually
Higher than the upper limit temperature for conventional ON / OFF control.
Is determined. The upper limit temperature is, for example, an abnormally high outside temperature.
Temperature that can be reached for the first time under exceptional conditions
Under normal circumstances, heating continues until midnight power end time.
However, the temperature of the heat storage material does not reach this upper limit temperature. Therefore,
The ON / OFF control performed by the control device of this embodiment is extremely
Only in exceptional circumstances, in this regard,
Several ON / OFF operations are performed during midnight power hours
It is different from the conventional ON / OFF control. The heat storage control device 20a according to the present embodiment
The following characteristic control is performed in addition to the ON / OFF control of
U. This control will be described with reference to FIGS.
You. Here, FIG. 2 illustrates the control operation of the heat storage control device 20a.
FIG. 3 is a time chart showing related times, and FIG.
It is a flowchart which shows the control operation of the heat control apparatus 20a.
You. In FIG. 2, T_sIs a discounted late-night power
Is the time at which the supply of_ePower supply at midnight
Time to end. For example, late-night rate discount
22: 00-6: 00, T_s= 22: 00, T_e= Like 6:00
Is set to Here, the midnight power end time T_eTo next
Midnight power end time T_eUp to the day cycle
Heat during midnight power hours during this cycle.
The material is stored, and the heating usage time after this time
Inside floor heating is performed by heat radiation from heat storage material inside
It has become. T in FIG._powIs T_sTo T_eFor up to
Time, that is, the midnight power supply time. T
_onMeans that the gate is opened and the power from the power source 22 is
Time at which the electric heater 24 is supplied, that is,
This indicates the time at which energization of the electric heater 24 is started. Energized open
Start time T_onTo midnight power end time T_eTime until
This is the energization time t set by the heat control device 20.
In FIG. 2, two days before and on the day are shown.
However, among the above-described energization times t, the previous day has “′”.
To distinguish it from that of the day. T1 is the temperature of the heat storage material
Is the time to measure the power, and this time is
(Time T_s~ Time T_e) Except for the heat storage material
During the time when heating is performed by heat radiation (heating use time)
Selected from For example, when heating is actually required
When the interzone is 6:00 to 17:00, which is shorter than the heating usage time zone
In this case, the temperature measurement time T1 is set to 17:00 which is the final time.
It is possible to do. The heat storage control device 20a according to the present embodiment
From the temperature of the heat storage material at measurement time T1,
The shortage is judged and the time corrected for the excess
Power start time T_onSet as Here, this control
Operation is abbreviated as feedback control (hereinafter abbreviated as "FB control").
You. ). This FB control is described with reference to FIG.
To be more specific, the heat storage control device 20a
At the time T1 during the heating use time zone of the day
14 to measure the temperature of the heat storage material 10 (step 1).
01). The heat storage material temperature thus obtained is represented by Q1.
Then, the control device 20a determines this temperature Q1
Quasi-temperature Q_fbCompared to the current, depending on the magnitude relationship
The time t is calculated (step 102). Specifically,
The energization time t of the day is calculated based on the equation. [0033] t = t '+ G_fb・ (Q_fb-Q1) ... (1) Here, t ': energizing time of the previous day G_fb: Gain (hr / ° C) Q_fb: FB reference temperature (° C) Q1: Temperature of heat storage material at temperature measurement time T1 (° C.) The above gain G_fbRaises the temperature of the heat storage material by 1 ° C
Represents the required heating time. This value depends on the type of heat storage material.
And the environment in which the heating system is installed.
In the present embodiment, a single fixed value is set to the gain G_fbUsed as
ing. The reference temperature Q_fbIs a suitable heating
Is an indicator of whether or not the floor heating system
It is set in advance according to the environment in which the system is installed. One example
For example, it is necessary to heat from 6:00 to 17:00,
When the quasi-time T1 is set to its final time of 17:00
The temperature at the reference time T1 is 30 ° C.
If it is 10 hours, the whole time zone (6: 00-17: 00)
When the heating can be performed properly, the reference temperature Q_fbTo
The temperature can be set to 30 ° C. as described above. And this group
Quasi-temperature Q_fbFor example, the effect of the type of heat storage material and the
It depends on the size, and more specifically, the floor heating system
The building where the is installed is located in a cold region or is relatively
It also depends on whether you are in a warm region. As is apparent from the above equation (1), the heat storage material
Temperature Q1 is the reference temperature Q_fbLower than the heat storage material 10
Time required to raise the temperature of the
Is added to the energization time t 'on the previous day. On the other hand, measurement of heat storage material
Constant temperature Q1 is the reference temperature Q_fbIf it is higher than
The time required to raise the temperature by the temperature difference between the two
It is subtracted from the energization time t 'of the previous day. example
If the reference temperature Q_fbIs 30 ° C and the measured temperature Q1 of the heat storage material is 2
7 ° C, gain G_fbIs 0.5 hr / ° C, 0.5 ×
(30-27) = 1.5 hr added to the energizing time t 'of the previous day
The calculated time is set as the energization time t of the day. Ma
When the measured temperature Q1 of the heat storage material is 32 ° C., 0.5 ×
(32−30) = 1.0 hr from the energizing time t ′ of the previous day
The subtracted time is set as the energizing time t of the day. This
The time that compensated for the excess or deficiency of the energizing time of the previous day
It will be set as the energizing time of the day. The energizing time for heating on the first day is stored
Set in advance considering the characteristics of the heat material and the surrounding environment
And good. Next, the heat storage control device 20a determines
During the midnight power supply, which is the upper limit of the energization time
Interval t_pow(Step 103). As a result,
The delivered energizing time t is t_powIn the following cases, this energization time
t is the midnight power end time T_eEnergized by calculating backward from
Time T_onIs calculated (step 104). For example, late at night
Power end time T_eIs 6:00 and the energizing time t is 6 hours
Is the energization start time T_onIs required to be 0:00. Then,
The heat control device 20a determines that the energization start time T_onTo gate
Signal to the gate circuit 24 to open the gate and
The power supply to the motor 12 is started. Thereby, the heat storage material 1
0 is started and heat is accumulated in the heat storage material 10.
(Step 105). On the other hand, the energization time t
Power supply time t_powAs a result, the energization time t becomes t_powYo
When it is larger, the heat storage control device 20a communicates as much as possible.
Power can be supplied to the electric heater 12 only for a time close to the power supply time t.
As shown in FIG._sOutput the gate signal to
To start energization of the electric heater 12 (step 10
6). In any case, after the energization is started, the heat storage control
The device 20a operates at the midnight power end time T_eA predetermined gate signal
Signal to the gate circuit 24 to close the gate and
The power supply to the heater 12 and the heat storage in the heat storage material 10 are terminated.
(Step 107). Note that the midnight power end time T_eUntil
When the temperature of the heat storage material 10 reaches the upper limit temperature, energization is interrupted.
Night power end time T_eIf you reach
The heat storage ends as it is. Thermal storage system of this embodiment
The control device 20a repeats the above control operation every day.
Become. As described above, the heat storage control device of the present embodiment
20a is always energized from the midnight power start time as in the past
Start, and simply turn ON / OFF the power to the heater
Unlike return control, the time required to obtain the required heat storage
Control the energization start time so that only the heater is energized
As a result, unnecessary power supply time can be reduced,
The amount of power can be reduced. The heat storage control device 2
0a indicates whether the energizing time of the previous day is appropriate for the appropriate energizing time.
Judge your foot and add this excess or deficiency time to the energizing time of the previous day or
Is subtracted to correct the energizing time of the previous day.
Since the energization start time of the day is determined from the energization time of
Correct the deviation from the ideal heating state when heating on the day on the day
The desired heating condition can be easily achieved.
Wear. The above FB control is performed at midnight if necessary.
Conventional heat storage material temperature within a predetermined temperature range
It may be combined with ON / OFF control. (Embodiment 2) The floor heating system of this embodiment
Only the control operation of the heat storage control device 20 is different from the above-described embodiment.
The arrangement of each component is shown in FIG.
The description is omitted because it is the same as that performed.
It should be noted that the storage of this embodiment is distinguished from the above-described embodiment.
The thermal control device is represented by the reference numeral 20 with a suffix b. FIG. 4 shows a heat storage control device 20b according to this embodiment.
5 is a time chart showing time related to the control operation of FIG.
FIG. 5 is a flowchart showing the control operation of the heat storage control device 20b.
It is a chart. The meaning of the symbols used in FIG.
Same as 2. As shown in FIG. 4, in the present embodiment,
Is the midnight power start time T_sIs set as the temperature measurement time T1.
Is defined. [0042]The heat storage control device 20b of the present embodiment includes:temperature
From the heat storage material temperature Q1 at the measurement time T1,
Estimate the energization time, and from this estimated energization time,
Start time T_onFeed-forward control to determine
(Hereinafter, abbreviated as “FF control”). See FIG.
Specifically, the heat storage control device 20b
Is a temperature measurement time T1 (in the present embodiment,
Force start time T_sbe equivalent to. ) Via the temperature sensor 14
The temperature of the heat storage material 10 is measured (Step 201). like this
Expressing the heat storage material temperature obtained as Q1 as
The control device 20b sets the heat storage material temperature Q1 to a predetermined reference temperature Q
_ffIs necessary for heat storage on the day according to the magnitude relationship.
The energization time t is predicted (step 202). This prediction
The charging time t is calculated based on the following equation. [0043] t = t_std+ G_ff・ (Q_ff-Q1) ... (2) Where t_std: Standard energizing time G_ff: Gain (hr / ° C) Q_ff: FF reference temperature (℃) Q1: Temperature measurement time T1 (= T_s)
Degree (℃) The above standard energization time t_stdIs the temperature measurement time T1
The temperature of the heat storage material at a predetermined reference temperature Q_ffso
In some cases, when electricity is required to perform the desired heating
Represents the interval. In addition, the above gain G_ffIs the temperature measurement
When the heat storage material temperature Q1 at time T1 is energized for heat storage
The degree of influence on the interval t is shown. Here, as a specific example, from 6:00 to 17:00
It is necessary to heat the room at the last time 1
At 7:00, if the temperature of the heat storage material 10 is 30 ° C or higher, heating is sufficient.
Minutes are assumed. Temperature of heat storage material 10 due to heat radiation
If the rate of decrease is 0.5 ° C / hr, at 17:00
The temperature becomes 30 ° C at the end of the night at 6:00
It is expected that the temperature of the heat storage material is 35.5 ° C.
Accordingly, the target temperature Q_gIt is good. 1
The temperature of the heat storage material, which was 30 ° C at 7:00, is
It is expected to drop to 27.5 ° C at 22:00
You. This 27.5 ° C. is taken as the reference temperature Q_ffIf set as
Standard energizing time t_stdMeans that the gain G is 0.5 hr / ° CAh
Then, T_std= 0.5 x (35.5-27.5)
= 4 hours. Next, at the time of the predicted energization based on the above equation (2),
After calculating the time interval t, the heat storage control device 20 b
Time t and midnight power supply time t which is the upper limit of energization time_powWhen
Are compared to determine the magnitude relationship between the two (step 20).
3). As a result, the predicted energization time t becomes the midnight power supply time t.
_powIf it is less than or equal to, the control device 20 b
t is the midnight power end time T_ePower supply start time T
_onIs calculated (step 204), and the time T_onGate to
A signal is sent to the gate circuit 24 to pass the signal to the electric heater 12.
Power is started (step 205). On the other hand,
The time t is the midnight power supply time t_powIf it exceeds
The device 20b is used only for a time as close as possible to the estimated energizing time t.
In order for the electric heater 12 to be energized,
Later (that is, at time T1), the power supply to the electric heater 12 is turned off.
(Step 206). In either case,
After the start, the heat storage control device 20 b
Time T_eOutput a predetermined gate signal to close the gate,
The energization of the air heater 12 is terminated (step 20).
7). As described above, the heat storage control device 2 of the present embodiment
0b is necessary for the heat storage material to reach a desired target temperature.
Predicts the energization time to the heater and allows for this estimated energization time
The heater will be energized for as short a time as possible
Set the energization start time as follows. Therefore, as in the past,
ON / OF of electricity supply to heater simply from night power start time
Unlike the control that repeats F, the useless energizing time is reduced.
Power consumption can be reduced. Ma
In addition, by estimating the required energization time,
State can be achieved easily and reliably. Note that the FF control described above can be implemented if necessary.
O with the upper limit temperature set higher than before as in Embodiment 1.
It may be combined with N / OFF control,
To keep the temperature of the heat storage material in the
It may be combined with conventional ON / OFF control. Izu
In this case, too, the power consumption is reduced by reducing the unnecessary power-on time.
Thus, the above-described effect of being obtained can be obtained. (Embodiment 3) Next, refer to FIG. 6 and FIG.
The third embodiment of the present invention will be described.
The floor heating system of the present embodiment is also controlled by the heat storage control device 20.
Only the control operation is different from the above-described embodiment.
The arrangement of components and the like are the same as those shown in FIG. Book
In the heat storage control device of the embodiment, reference numeral 20 is appended with a suffix c.
Represent. FIG. 6 shows a heat storage control device 20c according to this embodiment.
5 is a time chart showing time related to the control operation of FIG.
FIG. 7 is a flowchart showing the control operation of the heat storage control device 20c.
It is a chart. In FIG. 6, T1 is the first temperature measurement.
The fixed time, T2, represents the second temperature measurement time. Also,
T_s, T_e, T_on, T, t ', t_powMeans in FIG. 2 and
This is the same as in FIG. [0050]The heat storage control device 20c of the present embodiment includes:temperature
From the heat storage material temperature Q2 at the measurement time T2,
Expected energization time t as in the case_ffAnd calculate the temperature
FB control from heat storage material temperature Q1 at temperature measurement time T1
Predicted energization time t by the same method as_ffCorrection value Δ
t_fbIs calculated, and the final energization time t is calculated by adding the two.
Put out. Then, based on the energization time t,
Time T_onSet. Hereinafter, this control operation will be described in detail.
You. Here, for easy understanding, the energizing time t
A description will be given from the principle of calculating. In this embodiment, the embodiment
The energization time required for heat storage is predicted by the FF control of state 2,
In addition to this, to find a more appropriate energization time,
Calculate the correction value for the energization time and add the two to the final
Power supply time. This correction value is calculated according to the FB system of the first embodiment.
As well as the heat storage material temperature measured on the day, and the correction of the previous day
It is calculated based on the value. As shown in FIG. 7, the heat storage of this embodiment
First, the control device 20c performs a predetermined time during the heating use time zone.
At time T1, the temperature of the heat storage material 10 is measured via the temperature sensor 14.
(Step 301). Next, the control device 20c
Measured heat storage material temperature Q1 and current day correction value Δt
_fb′ Using the current-carrying time correction value t_fbIs calculated.
Step 302). This correction value Δt_fbIs calculated from the following equation.
It is. [0053]       Δt_fb= Δt_fb'+ G_fb・ (Q_fb-Q1) ... (4) Where Δt_fb': Power-on time correction value of the previous day G_fb: Gain (hr / ° C) Qfb: FB reference temperature (° C) Q1: Temperature of heat storage material at temperature measurement time T1 (° C.) This equation (4) is used in the FB control of the first embodiment (1)
Similar to the equation, the predetermined reference temperature Q_fbAnd measurement temperature Q1
And the previous day's power supply time correction value Δt_fb´ negligence
Corrected foot is the current-time correction value Δt of the day_fbToss
Things. That is, the heat storage material temperature Q1 is equal to the reference temperature Q.
When the temperature is lower than fb, the temperature of the heat storage material is the temperature difference between the two.
The time required to raise
Is added. Also, the measured temperature Q1 is higher than the reference temperature Qfb.
When the temperature is high, the temperature of the heat storage material is increased by the temperature difference between the two.
The time required to make the
It is. The first day of heating is Δt_fb'Can be 0
Wear. Next, the heat storage control device 20c operates at the time of temperature measurement.
Hour T2 (this is the midnight power start time T_sbe equivalent to. )
The temperature of the heat storage material 10 is measured via the temperature sensor 14 (s
Step 303), the estimated energizing time t is calculated from the measured temperature Q2.
_ffIs calculated (step 304). This calculation is given by the following equation
It is performed based on. [0055] t_ff= T_std+ G_ff・ (Q_ff-Q2) ... (5) Where t_std: Standard energizing time G_ff: Gain (hr / ° C) Q_ff: FF reference temperature (℃) Q2: Temperature measurement time T2 (= T_s)
Degree (℃) The method of calculating the estimated energization time is the same as in the second embodiment.
Therefore, duplicate description will be omitted. Next, the heat storage control device 20c operates as described above.
Estimated energization time t_ffTo the energization time correction value Δt_fb
To obtain the final energization time t (step 30).
5). That is, t = t_ff+ Δt_fb      … (6) It is. After that, the heat storage control device 20c
Time t and midnight power supply time t_powAnd compare the two
A small relationship is determined (step 306). As a result,
Time t is midnight power supply time t_powControl if
The device 20c operates at the midnight power end time T_eReverse t hours minutes from
To calculate the energization start time T_onIs calculated (step
307), this time T_onOutput a gate signal to the
The energization of the data 12 is started (step 308). one
On the other hand, the energization time t is the midnight power supply time t_powIf exceeds
Means that the control device 20c is as close as possible to the energization time t
So that the heater can be energized only during
Is started (step 309). In any case
After the start of energization, the heat storage control device 20c terminates
Time T_eOutput a predetermined gate signal to close the gate,
The energization of the electric heater 12 is terminated (step 31).
0). Here, the components of the control operation according to the present embodiment are described.
Show body examples. In this example, the midnight power start time T_s22: 0
0, midnight power end time T_e6:00, midnight power supply time t
_pow8 hr, gain G 0.5 hr / ° C., FB group
Quasi-temperature Q_fb30 ° C, FF reference temperature Q_ffAt 27 ° C, standard
Energizing time t_stdIs set to 4 hours. It is necessary to heat for practical use
Assuming 6: 00-17: 00 as a time zone with
The time 17:00 is set as the temperature measurement time T1. Also, the second
Is the midnight power start time T2._sSame as 22:
00. First, to heat the first day, the heat storage control device
20c is the energization start time T_s(= Temperature measurement time T2)
At 22:00, the temperature of the heat storage material 10 is measured, and
Estimated thermal conduction by substituting the obtained heat storage material temperature Q2 into the above equation (5).
Time t_ffIs calculated. Assume that the measurement temperature Q2 is 25 ° C.
Then, t_ff= 4 + 0.5 × (27-25) = 5 (hr)
Becomes The control device 20c determines t_ff
To the energization time correction value Δt_fbTo calculate the energization time t
However, for heating on the first day, the energization time correction value Δt_fbTo 0
The above-mentioned estimated energization time t_ff(= 5hr) when energized
It is assumed that the interval is t. Next, the control device 20c determines the energization time
t is the midnight power supply time t_pow(= 8hr)
However, in this example, t <t_powTherefore, the control device 20c
Is the midnight power end time T_eFrom 6:00 which is the energizing time t
1:00 which is calculated backward for a certain 5 hours is the energization start time T_onAs
calculate. Thereafter, the control device 20c sends the gate signal at 1:00.
Signal to the gate circuit 24 to open the gate and the power source 2
2 to start energization to the electric heater 12. After this,
At 6:00 which is the end time of the midnight power, the control device 20c
Sends a predetermined gate signal to the gate circuit 24 to
Closes the heater, energizes the heater 12 and stores heat in the heat storage material 10
To end. After this, the first day of the floor
Heating is performed. Next, for heating on the second day, the control device 20
c measures the temperature of the heat storage material 10 at 17:00,
The energization time correction value Δt based on Q1 and the above equation (4)_fbTo
calculate. Assuming that the measurement temperature Q1 is 27 ° C.,
Energization time correction value Δt_fb'Is 0, so Δt_fb= 0
+ 0.5 × (30−27) = 1.5 (hr). This
After that, the control device 20c changes the temperature of the heat storage material 10 at 22:00.
Measured, and preliminarily calculated based on the measured temperature Q2 and the above equation (5).
Measurement time t_ffIs calculated. Measurement temperature Q2 is 23 ° C
Then, t_ff= 4 + 0.5 × (27-23) = 6
(Hr). The control device is Δt_fb(= 1.5hr)
And t_ff(= 6 hr) and the energization time t (= 7.5)
hr), the energization time t and the time of midnight power supply
Interval t_pow(= 8 hr), where t <t
_powTherefore, the control device 20c determines the midnight power end time
T_eReverses 7.5 hours of energization time t from 6:00
22:30 calculated is the energization start time T_onCalculated at 22:30
A gate signal is output to start energizing the electric heater 12.
Let Further, it is assumed that the measured temperature Q2 is 21 ° C.
And t_ff= 4 + 0.5 × (27-21) = 7 (hr)
8.5 hours is calculated as the energization time t.
If t> t_powTherefore, the control device 20c
To start energizing the heater. In each case, midnight
Power supply ends at 6:00, which is the power end time, and after that,
The floor heating on the second day is performed by the heat radiation of the heat material. Heating three
After the day, the same control operation as described above is performed. As described above, the heat storage control device of the present embodiment
20c reserves an energizing time necessary to obtain a desired heat storage amount.
Measure and determine whether the power
To be added or subtracted from the estimated energizing time of the day.
The time obtained by correcting the predicted energization time is calculated as the energization time
ing. Just by predicting the energizing time as in the second embodiment,
Rather than adding a correction
, It is possible to perform more appropriate heat storage,
As a result, the desired heating state can be realized more reliably.
it can. The control according to the present embodiment is performed if necessary.
As in Embodiment 1, the upper limit temperature is set higher than before.
It may be combined with ON / OFF control, or at midnight power
To keep the heat storage material temperature in the interzone within a predetermined temperature range
May be combined with the conventional ON / OFF control. (Embodiment 4) Next, refer to FIG. 8 and FIG.
The fourth embodiment of the present invention will be described.
The floor heating system of the present embodiment is also controlled by the heat storage control device 20.
Only the control operation is different from the above-described embodiment.
The arrangement of components and the like are the same as those shown in FIG. Less than
Below, the heat storage control device of the present embodiment is denoted by reference numeral 20 with a suffix.
It is denoted by d. FIG. 8 shows the control operation of the heat storage control device 20d.
FIG. 9 is a time chart showing related times, and FIG.
It is a flowchart which shows the control operation | movement of 20 d of heat control apparatuses.
You. In FIG. 8, T1 is the temperature measurement time for FB control,
Ti (i = 2, 3, 4,...) Is the temperature measurement time for FF control
Represents Also, T_s, T_e, T_on, T, t ', t_powMeaning
The taste is the same as in the above embodiment. The control performed by the heat storage control device 20d of this embodiment
The operation isClaim 1And an embodiment.
This is an improvement of the control operation of the state 3. The details are described below.
This will be described in detail. The heat storage control device 20d of the present embodiment is
FB control temperature measurement time T1 during the heating use time zone
The temperature of the heat storage material 10 is measured via the temperature sensor 14 (see FIG.
9, step 401), this measured temperature Q1 and energization of the previous day
Time correction value Δt_fb′ Using the current-carrying time correction value t_fb
Is calculated (step 402). For this calculation,
Equation (4) is used. The control operation up to this point is
The same as in embodiment 3. Next, the heat storage control device 20d is used for the FF control.
Temperature measurement time T2 (this is the midnight power start time T_sTo
equal. ), The temperature of the heat storage material 10 is measured (step 40).
3) From the measured temperature Q2, the estimated energization time t_ffCalculate
(Step 404). This calculation is based on the above equation (5).
It is performed according to. Subsequently, the control device 20d sets the estimated energization time
t_ffTo the energization time correction value Δt_fbAt the time of final energization
Is determined (step 405), and the midnight power end time T
_eThe energization start time T is calculated by calculating_on
Is calculated (step 406). Thereafter, the control device 20
d is the energization start time T_onAnd current time T2
(Step 407). As a result of this comparison, T_onIs the current time
If the time is before time T2, energize as long as possible
In order to secure time, the control device 20d immediately starts the heater 1
2 is started (step 410). On the other hand, T_on
Is the time after the current time T2, the control device 20d
Is the time T_onAnd the time difference between the time T2
(T_on-Ti) is compared with a predetermined allowable value α (step
408). As a result, the time difference (T_on−Ti) is the allowable value α
If it is below, the control device 20d immediately sends the
(Step 409). In any case
After that, the heat storage control device 20d outputs the midnight power end time.
T_eThe gate is closed and the power supply to the electric heater 12 is terminated.
(Step 411). In addition, the time difference (T_on−
If Ti) is larger than the allowable value α, the control device 20d
Sets the temperature of the heat storage material 10 at the next measurement time T3 for FF control.
After the measurement, the same processing as described above is repeated. In the third embodiment, the measurement start time T_onIs measured
If the time is much later than the time T2, the power is turned off.
Start time T_onUnusual weather, outside temperature and wind
Energization start time T due to disturbance such as speed_onPrediction is accuracy
Could be bad. In contrast, this embodiment
In the state, a plurality of measurement times (T2, T3, ...) are set,
The energization opening calculated from the heat storage material temperature at these measurement times
Start time T_onIs almost equal to the measurement time (immediately
Until the time difference falls within the allowable value α)
To measure the temperature at each measurement time.
Since the time is calculated again, energize at a more appropriate energization start time.
Once started, suitable heat storage can be performed. The above control is performed as in the first embodiment.
ON / OFF control with the upper limit temperature set higher than before
It may be combined, or the heat storage material temperature is set within a predetermined temperature range.
Combined with conventional ON / OFF control to fit
Is also good. The present inventor has proposed a floor heating system according to the present embodiment.
The effect of was confirmed by conducting experiments. The experiment was done in March 1996.
Go to a reinforced concrete one-story house from May to May
Was. In the experiment, gain G = 25 min / ° C (=
0.417 hr / ° C), FB reference temperature Q_fb= 27 ° C,
FF reference temperature Q_ff= 25 ° C. At midnight power start
Time T_sIs 22:00, midnight power end time T_e6 o'clock, FB control
Temperature measurement time T1 is 17:00, and each FF control temperature
The measurement time Ti (i = 2, 3,...) Is 10 minutes after 22:00.
It is set at each time every minute, and the allowable value α is set to 5 minutes.
ing. In this experiment, a conventional type was used for the above control.
Storage control that performs control combining ON / OFF control of
The device was used. In other words, the temperature range of the heat storage material
The corresponding upper limit temperature and lower limit temperature are set in advance,
As described above, the heat storage control device turns off the power supply to the heater.
When the heat storage material temperature reaches this upper limit temperature
Closes the gate to stop energizing the heater,
When the temperature of the heat storage material reaches the lower
The electricity is restarted. The upper limit temperature is 35.
0 ° C. and the lower limit temperature are set to 32.0 ° C. Also,
This heat storage control device uses only the conventional ON / OFF control.
It can be performed independently and can be compared with the control of this embodiment.
It is working. From the above experimental period, from April 12 to April 24
The following table shows the experimental results up to the day. [0073] [Table 1]In this table, the “Date” column is
The period from time to 22:00 of the next day is shown. That is, the date
"4/12-4/13" in the column
It shows the period from 22:00 to 22:00 on April 13.
You. “ON / OFF” in “Control method” column is conventional ON
/ OFF control, and “FB + FF” is the embodiment
Control combined with conventional ON / OFF control
(Hereinafter, simply the (FB + FF) control of the present embodiment will be described.
Call. ). "Average temperature" is 1 from 6:00
It is the average temperature of the room temperature up to 8 o'clock,
"Warm" averaged the floor surface temperature from 6:00 to 17:00
Temperature. "Electrification time" is during the period shown in the date column
Is the total energizing time to the heater. Conventional ON / O
In FF control, ON / OFF operation is usually repeated several times.
However, in this case, the total ON time
"Between." “Power consumption” is turned off by energizing the heater.
Represents the power consumed. No. 1 by the conventional ON / OFF control. 1
6 to 6 and the (FB + FF) control of this embodiment
No. Comparing the data of Nos. 7 to 12 shows that
Overall power consumption with (FB + FF) control
It can be seen that is suppressed. A more detailed comparison is made between the two control methods.
Therefore, the temperature conditions on the day and the day before are close to each other. 4 and N
o. 8 data, outside air temperature, heat storage material temperature, floor surface
Temperature (floor temperature), room temperature, and accumulated power
These are shown in FIGS. In each figure,
The data related to the (FB + FF) control of the form is indicated by a solid line,
The data related to the conventional ON / OFF control is indicated by a broken line.
I have. As shown in FIG. 11, the conventional ON / OFF
In the OFF control, the heating is performed at 22:00, which is the midnight power start time.
Energization of the battery is started, and thereafter, the upper limit temperature of 35.0 ° C.
Between 3 and the lower limit temperature of 32.0 ° C.
Repeated. On the other hand, (FB + FF) control of the present embodiment
Then, the power supply starts at 2:00 and the temperature of the heat storage material
After the temperature rises monotonously, the upper limit temperature is reached and the power supply stops.
Have been. As is clear from the comparison between the two,
In the form of (FB + FF) control, heat is stored with minimum energization time
Is performed and there is no repetition of ON / OFF of the electric heater
Therefore, compared to the conventional ON / OFF control, the total energizing time is
Less is needed. In fact, as shown in FIG.
The power consumed in the form of (FB + FF) control is
Approximately 30% reduction compared to power consumption in ON / OFF control
Have been. This is also shown in the “Electrification time” column in the table above.
It is as expected. As shown in FIGS. 12 and 13,
In addition, heating by the control of the present embodiment and the conventional ON / OF
Heating by F control, floor surface temperature (floor temperature) and indoor temperature
There is almost no difference. As shown in the table above,
ON / OFF control, average bed temperature is 27.8 ℃, this embodiment
By controlling the state, the average bed temperature was 27.6 ° C., and the difference was 0.
2 ° C. Therefore, both heating effects are equivalent. The embodiments of the present invention have been described in detail.
However, the present invention is not limited to the above embodiment,
Various modifications are possible. For example, the heat storage system according to the present invention
The control device can be applied to heating systems other than floor heating.
It can also be applied to cooling systems.
You. In cooling systems, ice is used as heat storage material.
Good to be. Further, the heat storage control device according to the present invention provides a heat storage control device.
Depends on heat storage material temperature, such as flooring and room air instead of wood
And measure the temperature of the heat medium whose temperature changes.
The above control may be performed based on the constant temperature. Above implementation
The control method that uses the temperature of the heat storage material like the form is already
Temperature measuring means for measuring the temperature of the heat storage material is installed.
This is suitable when applied to a temperature control system that is in use.
Also, the floor material temperature (including floor surface temperature, etc.) and indoor temperature
Has the following advantages. sand
That is, the temperature in the room during heating depends only on the temperature of the heat storage material.
Heat storage material
Temperature and the temperature of the heat storage material
Both floor materials and indoor air temperature affected by outside temperature
Performing control based on the
To obtain the desired heating condition more accurately.
it can. [0080] As described above in detail, according to the present invention,
The temperature changes depending on the temperature of the heat storage material or the heat storage material.
By measuring the temperature of the heating medium, the desired heating or heating
Determining the appropriate heat storage start time for cooling
Can store heat in the heat storage material for the minimum necessary time.
The energy required for heat storage
Can also be reduced.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram showing a first embodiment of a temperature control system according to the present invention. FIG. 2 is a time chart showing time related to a control operation of the heat storage control device of the first embodiment. FIG. 3 is a flowchart illustrating a control operation of the heat storage control device according to the first embodiment. FIG. 4 is a time chart showing time related to a control operation of a heat storage control device according to a second embodiment. FIG. 5 is a flowchart illustrating a control operation of the heat storage control device according to the second embodiment. FIG. 6 is a time chart showing time related to a control operation of the heat storage control device according to the third embodiment. FIG. 7 is a flowchart illustrating a control operation of the heat storage control device according to the third embodiment. FIG. 8 is a time chart showing time related to a control operation of the heat storage control device of the fourth embodiment. FIG. 9 is a flowchart illustrating a control operation of the heat storage control device according to the fourth embodiment. FIG. 10 is a diagram showing the results of an experiment performed on the fourth embodiment, showing a change over time in the outside air temperature. FIG. 11 is a diagram showing the results of an experiment performed on the fourth embodiment, showing the time change of the heat storage material temperature. FIG. 12 is a diagram showing the results of an experiment performed on the fourth embodiment, and shows the time change of the floor surface temperature (bed temperature). FIG. 13 is a diagram illustrating a result of an experiment performed on the fourth embodiment, and illustrates a temporal change of a room temperature. FIG. 14 is a diagram illustrating a result of an experiment performed with respect to the fourth embodiment, and illustrates a temporal change in integrated power. FIG. 15 is a diagram for explaining a conventional heat storage control method. [Description of Signs] 1 ... Finishing material for flooring, 2 ... Concrete for gravel, 3 ... Wire mesh, 4 ... Heat insulation, 5 ... Concrete, 10 ... Heat storage material, 12 ... Electric heater, 14 ... Temperature sensor, 20 ... Heat storage control device , 22 ... power source, 24 ... gate circuit. Attorney-at-law Yoshiki Hasegawa, Adult Ikeda

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-292719 (JP, A) JP-A-2-293544 (JP, A) JP-A-4-15421 (JP, A) JP-A-63-1988 135746 (JP, A) (58) Field surveyed (Int. Cl. ⁷ , DB name) F24D 11/00 F24H 7/02 602 F24H 7/02 603

Claims (1)

(57) [Claim 1] A temperature control system for controlling the temperature in a room by radiating heat or cold stored in a heat storage material during a predetermined time period after the time period has elapsed. The heat storage control device for the, the standard energization time of the heat storage material, the temperature of the heat storage material or the temperature of the heat medium whose temperature changes depending on the temperature of the heat storage material, the temperature is the energization time required for heat storage The gain indicating the degree of influence and the reference temperature of the heat storage material or the heat medium are preset, and a predetermined time before the time zone and a plurality of times during the time zone are the temperatures of the heat storage material or the heat medium. The heat storage material or heat medium is set in advance as a measurement time, and at a predetermined time before the time period.
Measuring the temperature of said gain the measured temperature to a value obtained by subtracting from the reference temperature
And add the previous energization time correction value to this
Calculating an energization time correction value; measuring the temperature of the heat storage material or the heat medium at one of the temperature measurement times during the time period; and setting the gain to a value obtained by subtracting the measured temperature from the reference temperature.
, And adding the standard energizing time to the heat storage material
Calculating the energization time required for storing heat in the battery, and adding the energization time and the current energization time correction value.
Calculating the predicted energization time this time, calculating the estimated energization time back from the end time of the time zone to obtain an energization start candidate time, and measuring the temperature with one of the energization start candidate times. Comparing the time with the time, and starting the energization when the energization start candidate time is earlier than the temperature measurement time, or when the difference between the two times is within a predetermined allowable value. When the difference between the two times exceeds a predetermined allowable value and the energization start candidate time is a time later than the temperature measurement time, the process is performed at the next temperature measurement time. A heat storage control device, characterized in that: