JP4832777B2 - Heat source control device - Google Patents

Description

  The present invention relates to a heat source control device, and more particularly to a heat source control device used in a cogeneration system.

Conventionally, the heat of a device having a heat source is effectively used for hot water supply or heating. In large-scale establishments, heat generated during power generation is effectively used as a heat source.
In recent years, generators that can use heat corresponding to homes and small businesses have been developed. And energy can be saved by effectively using the heat generated during power generation as a heat source.
On the other hand, there is also a device that can effectively use electricity and heat by using a heat-driven device that can generate electricity while generating heat.

The heat is generated with power generation. Therefore, electricity and heat are generated at the same time, and if a large amount of electric power is generated, this heat increases. However, the required amount of power and the required thermal energy are not necessarily related.
Usually, the fluctuation of the heat consumption is larger than the fluctuation of the power consumption. This is because large energy may be temporarily used such as hot water supply to the bath.

  For this reason, providing the heat storage part, such as a storage tank which stores heat energy temporarily with hot water, and using the heat stored in the heat storage part when the use of heat energy increases rapidly is performed. In addition to the generator, an auxiliary heat source such as a combustion device is provided to compensate for the shortage of heat when the use of thermal energy is further increased.

Prior art documents related to the invention of this application include the following.
Japanese Patent No. 2580504

  In Patent Literature 1, it is determined whether the resident is in a living state while getting up, absent or sleeping, and for each energy usage act from the measurement result of the energy usage act and the usage record data measurement unit, An energy load prediction device is described in which the average and variance of use start time, use duration, and use amount are obtained to determine energy use for each hour. And according to patent document 1, the prediction which can respond to the life pattern of various residents can be performed, and the thermal storage system effective for the energy supply equipment of an apartment house can be utilized.

  In the case of a generator (heat source) that uses heat corresponding to a home or a small-scale business, the fluctuation of the heat energy used is large. In particular, a large amount of heat energy is required in a short time when hot water is used such as when using a bath. In this case, the heat energy stored in the heat storage unit is used. However, if a larger heat energy than the heat energy stored in the heat storage unit is required, a heat source such as a combustion device provided separately from the generator Therefore, heat energy must be supplied. In such a case, the energy efficiency decreases due to the use of the heat source.

Therefore, the heat source to be used is predicted and the heat source is systematically operated in advance so as to store the heat energy in the heat storage unit in advance in case a large amount of heat energy is required. However, even when operated in this way, the use of heat energy may not be performed as expected.
Conversely, if the electricity generated by the heat source is not used effectively, the energy efficiency is reduced.

  On the other hand, even when electricity or heat that is not predicted is used, energy may be saved by using the user's electricity or heat in an appropriate time zone. However, it was difficult for the user to know when using electricity or heat would save energy.

  Therefore, the present invention can prompt the user to use electricity or heat in an appropriate time zone even when electricity or heat is used that is out of prediction of operation. An object of the present invention is to provide a heat source control device capable of realizing energy saving.

  One invention proposed in order to achieve the above-described object is to control the operation of a heat source that generates heat and generates power, and predicts the amount of heat and / or electricity used to operate the heat source. A heat source control device that performs operation plan creation means, power consumption confirmation means, power comparison means, and notification means, and the operation plan creation means creates an operation plan for a heat source and includes the operation plan. The operation of the heat source is controlled based on the electric power generated by the heat source, and the electric power generated by the heat source can be used by an external device. The power generation amount is compared with the electric power used, and the notification means notifies on the basis of the result of the power comparison means, and periodically emits sound. result In response, a heat source control device, characterized in that in which informs by changing the period.

In this heat source control device, the power generation means compares the power generation amount of the heat source with the power used for the predetermined device, and further notifies the notification means based on the comparison result. Therefore, the user can know whether or not the power consumption is low, and when the power consumption is low, the user can be encouraged to use electricity, thereby further saving energy.
Further, according to the present invention, since the notification means notifies the user by changing the period according to the result of the power comparison means, the notification can be made to the user without using a voiced word or the like. In addition, even when using voiced words or the like, the user can check when the content of the voice is difficult to hear.

  The present invention can be characterized in that the notification means can notify a result of comparison between the total power generation amount of the heat source and the total electric power used from the start of operation of the heat source to the end of operation.

  According to this feature, it is possible to notify the result of comparison between the total power generation amount of the heat source and the total electric power used from the start to the end of the operation of the heat source, so that each time the heat source is operated, the degree of energy saving is reduced. By confirming, it is possible to confirm the influence on the energy saving performance with respect to the user's own behavior, and further energy saving can be achieved by the cooperation between the heat source control device and the user.

  The present invention is characterized in that the notification means can notify at least one of a scheduled start time and a scheduled end time of the operation of the heat source performed based on the operation plan.

  According to this feature, it is possible to report at least one of the scheduled start time and scheduled end time of the operation of the heat source performed based on the operation plan, so that the user can use electricity in accordance with the operation of the heat source. Can be prepared and can save energy.

  In addition, an operation unit for performing a remote operation may be provided, and when the operation unit is operated, the scheduled operation time of the heat source may be notified.

  Furthermore, the heat generated by the operation of the heat source can be used as hot water, and when the hot water is used, the scheduled operation time of the heat source may be notified.

  One invention proposed in order to achieve the above-described object is to control the operation of a heat source that generates heat and generates power, and to operate the heat source by predicting the amount of heat and electricity to be used. A control device comprising an operation plan creation means and a notification means, wherein the operation plan creation means creates an operation plan for the heat source and controls the operation of the heat source based on the operation plan; In addition, the notification means is a heat source control device which notifies the user so as to prompt the user to use electricity or heat at an appropriate time.

  According to this heat source control device, the user is informed so as to prompt the user to use electricity or heat at an appropriate time by the informing means, so that further energy saving is possible.

The invention according to claim 1, which is proposed to achieve the above object, controls the operation of a heat source that generates heat and generates electric power, and predicts the usage amount of at least one of heat and electricity to operate the heat source. A heat source control device that includes an operation plan creation unit, a power consumption confirmation unit, and a notification unit, and the operation plan creation unit creates an operation plan for the heat source, and the heat source is based on the operation plan. The power consumption confirmation means can confirm the power consumption of the electricity generated by the heat source used by an external device, and the power consumption exceeds the minimum power consumption. If no controls to stop the heat source irrespective of the operation plan is a used power shortage stop mode, and is intended to reduce the minimum operating power nears the time to use the heat, the notification means During use power shortage stop mode, which is a heat source control device, characterized in that it is to notify the user of predetermined information.
Here, the predetermined information to be notified to the user includes information indicating that the power consumption is in a shortage stop mode, information indicating that the user is prompted to use electricity, and the like.

  According to the first aspect of the present invention, when the power consumption does not exceed a certain value, the power consumption shortage stop mode is set and control is performed to stop the heat source regardless of the operation plan. If it is not, it is possible to improve energy saving by not generating power. In addition, since the notification means notifies the user of predetermined information in the power usage shortage stop mode, it is possible to prompt the user to use electricity so that the power usage exceeds a certain value. Furthermore, when the user uses electricity, the power consumption shortage stop mode is canceled, the heat source is in an operating state, and energy can be saved by using the electricity generated by the heat source.

  The invention described in claim 2 is to notify the user of insufficient power, which is the difference between the used power and the minimum used power, in the case of the used power insufficient stop mode. It is a heat source control device.

According to the second aspect of the present invention, since the user is informed of a power shortage that is a difference between the power used and a constant value in the power usage shortage stop mode, the user can stop the power usage shortage. You can see how much electricity can be used to release the mode.
When this insufficient power is notified, it can be displayed directly in wattage, but it can also be displayed in a specific example of an appliance corresponding to the insufficient power.

  According to a third aspect of the present invention, a notification blocking unit is provided, wherein the notification blocking unit can switch between a notification enabling state and a notification blocking state, and notification by the notification unit is not performed in the notification blocking state. The heat source control device according to claim 1, wherein the heat source control device is provided.

  According to the third aspect of the present invention, since the notification blocking means that can be set to the notification blocking state is provided, when the user who does not need to use the heat source control device uses the notification, the notification is not performed. Can be

  The heat source control device of the present invention realizes energy saving by encouraging the user to use electricity and heat in an appropriate time zone even when the use of electric power or heat quantity that is not predicted is used. be able to.

  Hereinafter, specific examples of the present invention will be described. FIG. 1 is a block diagram showing a thermal system in the first embodiment of the present invention. FIG. 2 is a schematic diagram showing a thermal system in the first embodiment of the present invention. FIG. 3 is a schematic diagram showing a specific example of the thermal system in the first embodiment of the present invention. FIG. 4 is a flowchart showing the criterion for determining the power usage insufficient stop mode. FIG. 5 is a graph showing the minimum power consumption. 6 and 7 are conceptual diagrams showing the display unit.

As shown in FIG. 1, the heat source control device 1 according to the first embodiment of the present invention includes a heat consumption confirmation unit 10, a reference value update unit 11, a reference value storage unit 12, an operation plan creation unit 13, and a power consumption confirmation. Means 14, power comparison means 14a, and notification means 15 are provided.
The heat source control device 1 is a control device provided in the heat system 8, and the heat system 8 is provided with a heat source 16, a storage unit 17, and a heat energy use device 18, and the heat source 16 is a heat source control device. It is operated while being controlled by 1.

  The heat source control device 1 predicts in advance the amount of heat used by the user and operates the heat source 16 based on the prediction. Specifically, based on the reference predicted value W stored in the reference value storage unit 12, an operation plan is created by the operation plan creation unit 13 and the heat source 16 is operated. Then, the reference predicted value W stored in the reference value storage unit 12 is updated using the heat consumption amount Q or the like confirmed by the heat consumption amount confirmation unit 10.

  The consumed heat quantity confirmation means 10 measures the physical quantity related at regular intervals, thereby consuming the consumed heat quantity in a predetermined device (hot water supply device 19, bath device 20, heating device 21) that uses the heat generated by the heat source 16. Q can be confirmed.

The reference value update unit 11 determines whether or not to update the reference prediction value W based on the reference prediction value W or the actual value of the heat consumption Q, and calculates the reference prediction value W when updating. The reference predicted value W recorded in the reference value storage means 12 is updated. The reference prediction value W is used to create an operation plan as will be described later.
In the present embodiment, the reference prediction value W is repeatedly used as required by repeatedly using the reference prediction value W preceding the reference cycle. Here, the reference period is arbitrary, but is one week in the embodiment of the present invention.

This reference period has a plurality of periods as components, and in this embodiment, this period is one day, and the reference period has seven periods. This period consists of a plurality of unit periods. This unit period is one hour, and there are 24 unit periods in one period.
Further, the reference prediction value W has 24 data per day, and data is provided for each time. And the heat consumption Q confirmed by the heat consumption confirmation means 10 corresponds to the reference prediction value W, and the heat consumed every hour can be confirmed.

The reference predicted value W has 24 data for each time for each day of the week, and a total of 168 data is recorded by the reference value storage means 12. In other words, the reference prediction value W has data for each unit period.
The reference prediction value W may be updated to the value of the heat consumption Q corresponding to the day of the week and the time by satisfying certain conditions. In such a case, the reference prediction value W can be set to a value close to the heat consumption amount Q during the same day in the past. When the thermal system 8 is used, the initial value S is used instead of the reference predicted value W that is the reference period before.
It should be noted that the standard time of the day does not have to be midnight, but can be based on another time such as 3:00 am.

  The operation plan creation means 13 creates an operation plan based on the reference predicted value W stored in the reference value storage means 12. The operation plan is performed using the reference predicted value W for the day of the week on which the operation plan is created. When the operation plan is created, the reference predicted value W may be used as it is, but the operation plan can also be created using the planned calorific value Ty calculated by correcting the reference predicted value W under certain conditions. And control of the heat source 16 is performed based on this operation plan, and the heat source 16 will be in an operation state for a fixed time.

  The heat source 16 is connected to a power load 22 of an apparatus provided outside that uses the power generated by the heat source 16. The used power E used by the power load 22 can be confirmed by the used power confirmation means 14. Moreover, the power consumption confirmation means 14 can also confirm the total amount of power used at an arbitrary time.

In addition, the power comparison unit 14 a can compare the used power E confirmed by the used power confirmation unit 14 with the amount of power generated by the heat source 16.
And in the heat source control apparatus 1, as a result of the comparison by the power comparison means 14a, when the use power E confirmed by the use power confirmation means 14 is smaller than the minimum use power E0, the heat source 16 is set as the use power shortage stop mode. Control is performed to stop the operation. In other words, even if the heat source 16 is to be operated in the operation plan created by the operation plan creating means 13, the heat source 16 is controlled to stop when the operation power shortage stop mode is entered.
That is, as shown in FIG. 4, in the operation plan created by the operation plan creation means 13, it is the time zone where the heat source 16 is scheduled to be operated, but the power consumption E is smaller than the minimum power consumption E0. Advances from STEP 1 to STEP 3 through STEP 2 to enter a power usage shortage stop mode.
Thus, since the heat source 16 is stopped when the use power shortage stop mode is set, it is possible to prevent the power generated by the heat source 16 from being effectively used and to improve the energy efficiency.

It should be noted that a fixed value may be used as the minimum power consumption E0 for determining whether or not the power consumption shortage stop mode is set, and a value that varies depending on conditions can be used.
An example in which the value of the minimum power consumption E0 is changed according to conditions will be described with reference to FIG. An operation plan is created and the heat source 16 is operated so that the amount of heat (planned heat amount value Ty) used by the hot water supply device 19 or the bath device 20 is generated and stored in advance. At this time, energy is easily wasted if electricity is not used during operation of the heat source. Therefore, in the case of the power consumption E that is equal to or lower than the minimum power consumption E0, the power consumption shortage stop mode is set.
Further, if the heat source 16 is operated in advance, there is heat radiation until the time for using heat, so the minimum power consumption E0 is increased, and the minimum power consumption E0 is decreased as the time for heat usage is approached. In addition, when the heating device 21 is used, the amount of heat corresponding to the heating device 21 is used and waste is reduced. Therefore, the minimum power consumption E0 is made smaller than when the heating device 21 is not used.
Furthermore, a learning function can also be provided for the minimum power consumption E0 and can be changed so as to save energy.

The notification unit 15 notifies the user of predetermined information related to the heat source control device 1 by displaying or emitting sound.
In the notification means 15 in the present invention, information on whether or not the heat source 16 is operating at the present time, and the comparison result between the power generation amount of the heat source 16 and the used power E confirmed by the used power confirmation means 14 at the current time. Information about what is happening, information about when the heat source 16 is scheduled to start and end, information about whether the heat source 16 is stopped due to the power shortage stop mode, Information for encouraging the use of electricity, the value of the insufficient power that is the difference between the used power E and the minimum used power E0 in the case of the used power shortage stop mode, from the start of operation of the heat source 16 to the end of operation, As a result of comparison between the total power generation amount of the heat source 16 and the total power used by the power load 22, it is possible to notify the user of such information and the like.

The notification means 15 may be any method as long as it can notify the user. For example, the notification means 15 may be a method of transmitting information by displaying information on a character or graphic and using a display or the like. A method of transmitting information by voice and transmitting information by voice can be used.
The timing of transmission of information by the notification means 15 may be performed at any time, and notification may always be performed by displaying it, but it is also possible to notify only when a predetermined condition is met. Specifically, the heat source control device 1 may be provided with an operation unit (remote control) that can be remotely operated, and the notification unit 15 notifies information when the operation unit is operated by the user. it can. Further, it is possible to detect the use of hot water by operating a currant or the like provided in the hot water supply device 19 and operate the notification means 15 by this detection.

When notifying the user whether or not the heat source 16 is operating at the current time using the notification means 15, the notification is made only when the heat source 16 is operating and when the operation of the heat source 16 is stopped. It is possible to prevent notification.
Also, the content of the notification is changed according to the comparison result between the power consumption E and the amount of power generated by the heat source 16 by the power comparison means 14a, and the fact that the heat source 16 is operating and the usage status of the power consumption E are combined. Can be notified. The content of the notification is changed by changing the voice information to be notified, changing the sound quality of the voice information or the generation interval.

For example, on the basis of the amount of power generated, when the power consumption E is the same or large, a satisfactory voice (such as a bird's tweet or a pleasant melody) is emitted, and when the power consumption E is slightly small, a normal voice is emitted. When the power consumption E is very small, information indicating unsatisfactory sound is emitted, so that information can be transmitted to the user even with sound images.
Furthermore, when the electric power used E is small with respect to the amount of power generated, the use of this electricity can improve energy efficiency and save energy. Please use a message that prompts the user to use electricity. Then, a message such as “Please use advantageous electricity during power generation” can be issued between the information on the result of comparison between the power generation amount and the power consumption E. Further, these sounds can be periodically emitted, for example, such a message is issued once after the comparison result information is issued twice.

  Moreover, although the period (number of times per time) of sound generation can be arbitrarily changed, it can be changed according to the amount of power E used. For example, on the basis of the amount of power generation, when the used power E is the same or large, the period (interval) for generating sound is lengthened, and when the used power E is slightly small, the period (interval) for generating sound is slightly shortened, When the power consumption E is considerably small, the period (interval) of sound generation may be further shortened. Further, it is possible to notify by changing the volume of the voice.

  And when using the alerting | reporting means 15 to alert | report when the operation start scheduled time and completion | finish scheduled time of the heat source 16 are notified, it can carry out using the display part 50 as shown in FIG. . The display unit 50 is provided with an indicator lamp 50a corresponding to each time, and the indicator lamp 50a corresponding to the time of operating the heat source 16 planned by the operation plan is turned on to display other time zones. The lamp 50a is turned off. The user can confirm the scheduled operation start time and the scheduled operation end time of the heat source 16 by looking at the display unit 50. Then, the user can see when it is appropriate to use electricity or heat by looking at the display unit 50, and inform the user to prompt the use of electricity or heat at an appropriate time by the notification means 15. can do.

  In addition, when the heat source 16 is in operation, it is not necessary to notify the scheduled start time of the operation of the heat source 16, so only information about when the scheduled end time is notified. Moreover, in the heat source control apparatus 1 of this invention, the display of the display part 50 is updated on the basis of midnight or 3:00 am. In the example shown in FIG. 6, the heat source 16 is operated from 19:00 to 22:00.

Further, as described above, even if the heat source is scheduled to be operated by the operation plan created by the operation plan creation means 13, if the power consumption E is smaller than the minimum power consumption E0, the power consumption shortage stop mode is set, and the heat source 16 Is stopped. For this reason, the heat source 16 displayed on the display unit 50 or the like is stopped at the operation time, which is different from the display unit 50, which may be mistaken for failure.
Therefore, the notification means 15 of the present invention can notify the user whether or not the heat source 16 is stopped in the used power shortage stop mode, and the difference from the used power E in the used power shortage stop mode. It is possible to notify the amount of power that should be used in order to display the value of the insufficient power that is and to get out of the used power shortage stop mode. In this case, a display unit 51 as shown in FIG. 7 can be used. In the example of FIG. 7, the display unit 51 displays “Reasonable power is available for another 300 W”.

This will be described with reference to the flowchart of FIG. 4. First, in STEP 1, it is determined whether or not it is a time zone for operating the heat source 16 according to the operation plan, and if it is a time zone for operating the heat source 16 in the operation plan, STEP 2. Proceed to Then, in STEP2, it is determined whether or not the used power E used by the power load 22 is smaller than the minimum used power E0. If it is smaller, the used power shortage stop mode is set, and the shortage power is displayed (STEP3, STEP4).
On the other hand, if it is not the time zone in which the heat source 16 is operated in the operation plan or if the used power E is greater than the minimum used power E0, the process proceeds to STEP 5 and normal default display is performed.

As described above, if the heat source 16 is not operated due to insufficient power consumption and the heat source 16 is not operated, energy efficiency is reduced and it is difficult to save energy. However, in the heat source control device 1 of the present invention, in such a case, the user uses electricity. And the operation stop of the heat source 16 can be released, so that energy saving can be realized.
Furthermore, the content displayed on the display unit 51 can also display a specific example of the electrical appliance corresponding to the insufficient power. For example, it is possible to display “You can use good electricity by using electricity for one air conditioner”.

  The display units 50 and 51 can be provided in an operation unit (remote control) for performing remote operation. In such a case, it is easy for the user to confirm the display contents.

And the alerting | reporting means 15 can alert | report the result of having compared the total electric power generation amount of the heat source 16, and the total electric power used. The total amount of power generated by the heat source 16 may be the amount of power actually generated, or the amount of power obtained by multiplying the rated power generation capacity of the heat source 16 by time. Further, the total power used is used by the power load 22 and is obtained by integrating the power used E. And by notifying this result, the user can feel more energy saving.
Further, immediately after the operation of the heat source 16 is stopped, the total power generation amount and the total electric power used can be compared and the result can be notified. By doing in this way, the influence on energy-saving property with respect to one's action can be confirmed quickly, and further energy saving can be aimed at by cooperation with the heat source control apparatus 1 and a user.

  As a specific example of the result of comparison between the total power generation amount and the total power consumption, the ratio of the total power usage to the total power generation amount or the power amount obtained by subtracting the total power usage from the total power generation amount may be used.

As shown in FIG. 1, the heat source control device 1 is connected to the heat source 16 and can control the heat source 16.
The heat source 16 is a generator that can be controlled from the outside, and is a device that cools heat generated during power generation with cooling water and can extract the cooling water as heat energy. Then, the generated heat is directly supplied, or the water in the storage unit 17 and the thermal energy using device 18 is heated through a heat exchanger or the like.
As the heat source 16, a fuel cell, a gas engine or the like is used.

  Moreover, the electric power generated by the heat source 16 is consumed by an electric power load 22 such as a television or a refrigerator. The electricity generated by the heat source 16 is basically used by the power load 22, but the surplus electricity that is not used by the electrode load 22 is heated by heating the water in the storage unit 17 with a heater or the like. Be heated.

The storage unit 17 is specifically a tank having a heat retaining function, and the water in the storage unit 17 is heated by the heat generated by the heat source 16 as described above.
The thermal energy using device 18 performs heating or the like using water heated by the heat generated by the heat source 16 or heated water supplied from the storage unit 17, and specifically, as shown in FIG. The hot water supply device 19, the bath device 20, and the heating device 21. The hot water supply device 19 is a device that supplies hot water generated by using the heat generated by the heat source 16, and more specifically, a hot water tap, a shower, or the like. The bath apparatus 20 is provided with a bathtub, can circulate water in the bathtub, and can refill it, and can supply hot water to the bathtub. The heating device 21 circulates water having a temperature higher than room temperature through a circulation path, and performs heat exchange indoors to perform heating.

As shown in FIG. 2, the heat source 16, the storage unit 17, and the thermal energy use device 18 are connected by a pipe 24. The thermal energy generated by the heat source 16 can be temporarily stored in the storage unit 17 and can be used by the thermal energy usage device 18.
Moreover, the piping 24 is connected so that water flows in the direction shown by the arrow of FIG. 2, and the movement of thermal energy is possible. The pipe 24 may have a configuration through a heat exchanger or the like in the middle, and may not have a directly connected flow path.

  Further, as shown in FIG. 2, the heat system 8 measures the temperature T2 and the amount V of hot water used in the heat energy use device 18, the water supply thermistor 10 a that measures the introduced water temperature T <b> 1. A hot water thermistor 10b and a hot water flow sensor 10c are provided. And the above-mentioned heat consumption confirmation means 10 is computed and calculated based on these detection data.

A specific apparatus of the thermal system 8 is shown in FIG.
In the thermal system 8, the hot water storage tank 17 a that is the storage unit 17 and the heater 16 a that is the heat source 16 form a circulation path 61 by the pipe 24. The hot water storage tank 17 a is connected to a water supply path 62 and a hot water supply path 63, which are pipes 24. Water supplied from the water supply path 62 is heated in the hot water storage tank 17 a and hot water is discharged through the hot water supply path 63. The

  The thermal system 8 is provided with a flow sensor 64 and a temperature sensor 65. The flow sensor 64 of the thermal system 8 can confirm the amount V of hot water to be supplied, and the temperature sensor 65 can detect the temperature T1 of the hot water to be introduced, the temperature T2 of the hot water to be supplied, and the temperature in the hot water storage tank 17a. It can be confirmed and used as the heat consumption confirmation means 10 described above.

The hot water storage tank 17a can store heat as hot water. The amount of heat can be confirmed by the temperature sensor 65 or the like.
In the hot water storage tank 17a of the thermal system 8, the amount of heat can be confirmed by the volume of the hot water portion in the hot water storage tank 17a, the temperature of the portion, and the temperature of the entire hot water.

Next, control by the heat source control device 1 will be described using the heat system 8 having the heat source control device 1.
When the heat source 16 having the power generation function of the thermal system 8 is activated, the heat source 16 generates heat while generating power, and recovers heat by the cooling water.
Further, the water temperature T1 introduced by the water supply thermistor 10a, the hot water thermistor 10b and the hot water flow rate sensor 10c, the temperature T2 of the hot water used in the thermal energy use device 18 and the amount V thereof are measured every hour.
Then, the heat consumption amount Q is calculated by the heat consumption amount confirmation means 10 calculated from the water temperature T1, the temperature T2 and the amount V of the hot water. The consumed heat quantity Q is an estimated consumed heat quantity calculated from a predetermined physical quantity. Specifically, the water temperature T1 introduced into the thermal system 8, the temperature T2 of hot water used in the thermal energy use device 18, and the temperature thereof. The amount of heat that can be obtained from the amount V and is considered to have been consumed by the thermal system 8.

  The operation of the heat source 16 is operated according to the operation plan created by the operation plan creation means 13. This operation plan is created based on the reference predicted value W.

  The reference predicted value W is updated by the reference value update means 11 under a certain condition. This update is performed according to the procedure shown in FIG. Note that whether or not to update the reference predicted value W is determined using the corresponding heat consumption Q or the like.

  Although the operation plan is created by the operation plan creation means 13, the planned heat value Ty for each hour is calculated by using the actual value of the heat consumption Q on the previous day and the like based on the reference predicted value W. In the operation plan, the heat source 16 is actuated systematically and the heat is stored in the storage unit 17 so that the heat consumption amount of the planned heat amount value Ty for each hour can be supplied.

  In this way, since the operation plan is created so that the heat quantity of the planned calorific value Ty for each hour can be supplied and the heat source 16 is operated, it is automatically performed based on the prediction based on the heat quantity learned by the user based on the actual use. Thus, the heat source 16 is operated, and the user can use electricity or heat (hot water) efficiently generated and generated by the heat source 16.

  And in the heat source control apparatus 1 of this embodiment, since it can alert | report the information whether the heat source 16 is drive | operating at the present time by the alerting | reporting means 15, it can be known whether it is generating electric power at this time, and the heat source 16 More energy can be saved by using the electric power generated by the operation.

  Further, when the heat source 16 is operating at the current time point, the notification means 15 can know the result of comparing the amount of power generated by the heat source 16 and the power consumption E. Can be used to further improve energy saving. For example, what can change the use time of electricity, such as washing and ironing, can be changed when power consumption E is low.

  Further, the notification means 15 can confirm when the scheduled start time and the scheduled end time of the operation of the heat source 16 are by the display unit 50 as shown in FIG. For this reason, the user can set up what can change the use time of electricity to be in the operation time zone of the heat source 16, so the power consumption E is reliably increased during the operation time zone of the heat source 16. be able to.

  In addition, since the notification means 15 can determine whether or not the heat source 16 is stopped in the used power shortage stop mode, the heat source 16 is not mistaken for a failure when the heat source 16 is stopped in the used power shortage stop mode. . Moreover, since the value of the insufficient power that is the difference between the used power E and the minimum used power E0 can be displayed in the case of the above-described insufficient power consumption stop mode, the use of the insufficient power is promoted to improve the energy saving performance. be able to.

  Then, the notification means 15 allows the user to know the result of comparison between the total power generation amount of the heat source 16 and the total power consumed by the power load 22 during the period from the start of operation of the heat source 16 to the end of operation. It is possible to make the person aware of energy saving performance.

  Since the notification by the notification means 15 is performed when an operation unit (remote control) that can be operated remotely is operated or when a curan provided in the hot water supply device 19 is operated, unnecessary notification is eliminated. It is possible to reduce wasteful power for notification.

  Furthermore, a notification blocking unit that prevents notification by the notification unit 15 of the heat source control device 1 can be provided. The notification blocking means is a dip switch or the like, and can switch between a notification enabling state and a notification blocking state. And when the user who does not need notification uses the heat source control apparatus 1, it can prevent notification by a notification prevention means.

  And about the alerting | reporting means 15 of the heat source control apparatus 1, you may enable it to alert | report so that a user may use use of heat at an appropriate time. For example, when the heat source 16 is in operation and heat is not sufficiently stored in the storage unit 17, when the user tries to fill the bath with a hot water switch, “If the hot water is filled at XX, it is more energy-saving. It is possible to report such as “If you wait for the time, it will save energy”.

It is the block diagram which showed the thermal system in the 1st Embodiment of this invention. It is the schematic diagram which showed the thermal system in the 1st Embodiment of this invention. It is the schematic diagram which showed the specific example of the thermal system in the 1st Embodiment of this invention. It is the flowchart which showed the criterion of the use electric power shortage stop mode. It is the graph which showed the minimum electric power used. It is the conceptual diagram which showed the display part. It is the conceptual diagram which showed the display part.

DESCRIPTION OF SYMBOLS 1 Heat source control apparatus 10 Consumption heat amount confirmation means 11 Reference value update means 12 Reference value storage means 13 Operation plan preparation means 14 Power consumption confirmation means 14a Power comparison means 16 Heat source

Claims (3)

A heat source control device that controls the operation of a heat source that generates heat and generates power, and that operates the heat source by predicting the amount of heat and electricity used,
An operation plan creation means, a power consumption confirmation means, and a notification means, the operation plan creation means creates an operation plan of the heat source, and controls operation of the heat source based on the operation plan. The used power confirmation means can confirm the used power used by an external device from the electricity generated by the heat source. When the used power does not exceed the minimum used power, the used power shortage stop mode is used. It is those with it controls so as to stop the heat source irrespective of the operation plan, and to reduce the minimum operating power nears the time to use the heat,
The said notification means alert | reports predetermined information to a user in the use power shortage stop mode, The heat source control apparatus characterized by the above-mentioned.   The heat source control device according to claim 1, wherein in the use power shortage stop mode, the user is notified of a shortage power that is a difference between the use power and the minimum use power.   2. A notification blocking unit is provided, wherein the notification blocking unit can switch between a notification enabling state and a notification blocking state, and the notification unit does not perform notification in the notification blocking state. Or the heat source control apparatus of 2.

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