JP2012092997A - Hot water supply space heating system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hot water supply space heating system which is constituted by combining an electric heat pump with an other heating device, enables hot water supply/space heating at higher energy efficiency without causing the shortage of a hot water supply/space heating capacity and does not exceed a maximum amount of contract electric power (or contract electric current).SOLUTION: The hot water supply space heating system includes: a combustion heat source machine 20 heating hot water supply hot water and a space heating circulation heat medium by combustion; a heat pump device 10 heating the supply hot water and the space heating circulation heat medium; an electric power consumption detection means 70 capable of detecting electric power or an electric current supplied to be consumed from an electric power supply device 60 to a plurality of electric power load facilities including the heat pump device 10; control means (11, 21, 51); and at least one of a space heating radiator 30 and a hot water supply device 50. The control means controls electric power supply to the electric heat pump 12 so that the electric power consumption detected by the electric power consumption detection means 70 does not exceed a preset threshold.

Description

  The present invention relates to a hot water supply and heating system having a combustion heat source machine equipped with, for example, an oil burner and the like, and an electric heat pump as heating sources.

In recent years, various heating systems have been used. For example, a heating system using a heating circulation heat medium such as hot water has been widely used, such as a floor heating system. Further, a hot water supply / heating system in which a hot water supply device is further added to the heating system is also widely used.
In recent years, hot water supply and heating systems tend to place importance on environmental performance, and there is a demand for hot water supply and heating systems that have high energy efficiency and can contribute to a reduction in carbon dioxide emissions.
On the other hand, in the conventional hot water supply and heating system, importance is placed on reducing the cost of heating. For example, in the conventional technique described in Patent Document 1, the hot water supply and heating system provided with a combustion heater (oil burner) and an electric heat pump. The apparatus has two circulation paths configured in parallel with a hot water circulation path for heating hot water in a hot water storage tank with an electric heat pump and a hot water circulation path for heating with a combustion heater. And in the midnight time zone when the electricity bill is cheap, the hot water is heated with the electric heat pump, the hot water is heated with the combustion heater in other time zones, and when the capacity is insufficient, the hot water is heated with both the electric heat pump and the combustion heater. A hot water heater is disclosed.

JP 2005-273958 A

When comparing the energy efficiency of the combustion heater and the energy efficiency of the electric heat pump, the energy efficiency of the electric heat pump is generally higher than the energy efficiency of the combustion heater. Although the energy efficiency of combustion heaters cannot exceed 100%, some of the recent electric heat pumps that use the temperature of the atmosphere reach about 400-500% depending on the conditions, and the energy of the commercial electricity itself that is the driving source Energy efficiency exceeding 100% is realized in primary energy efficiency considering efficiency (about 30 to 40%).
However, if a hot water supply / heating system is configured with only an electric heat pump with emphasis only on energy efficiency, the capacity and temperature level required for heating may be insufficient, or the primary energy efficiency of the electric heat pump may depend on the energy of the combustion heater depending on conditions. Since it may be lower than the efficiency, it is preferable to provide a hot water supply and heating system that combines an electric heat pump and another heating device.

In the prior art described in Patent Document 1, a combustion heater and an electric heat pump are arranged in parallel, and hot water is generated using an electric heat pump in a midnight time zone (for example, from 23:00 to 7:00) where electricity charges are low. ing. However, it is generally expected that the time zone that requires more hot water is often before the midnight time zone (from around 18:00 to around 23:00 until the end of bathing). . For this reason, in the prior art described in Patent Document 1, the operating rate of the combustion heater having low energy efficiency tends to be high, and the operating rate of the electric heat pump having high energy efficiency tends to be low. That is, although heating can be performed with higher energy efficiency, there is a possibility that heating is performed with relatively low energy efficiency.
Moreover, in the prior art described in patent document 1, in the hot water supply / heating system provided with two heat sources, a combustion heater and an electric heat pump, since the electric power supplied to the electric heat pump is great, a plurality of such hot water supply / heating systems are included. If the total power supplied from a distribution board supplying power to a power load facility (for example, an air conditioner or a microwave oven) exceeds the maximum power (contract power) that can be supplied from the distribution board, The breaker is activated and power supply to all power load facilities is stopped.

  The present invention was devised in view of the above points, and in a hot water supply / heating system that combines an electric heat pump and another heating device, hot water supply with higher energy efficiency without lack of hot water supply / heating capability. It is an object to provide a hot water supply and heating system that can be heated and does not exceed the maximum amount of contract power (or contract current).

In order to solve the above problems, the hot water supply / heating system according to the present invention takes the following means.
First, the first invention of the present invention is that a combustion heat source unit having combustion heating means capable of heating each of hot water supply hot water and heating circulation heat medium by combustion, and each of hot water supply hot water and heating circulation heat medium are electrically connected. Heat pump that can be heated using a heat pump circulating heat medium heated by a heat pump and a heat pump heat exchanger, and power that is supplied from a power supply device to a plurality of power load equipment including the heat pump device and consumed Or a power consumption detecting means or current consumption detecting means capable of detecting current, and a control means for controlling at least the heat pump device, a heating radiator that radiates heat using the heating circulation heat medium, and a water supply source It has at least one of a hot water supply device capable of mixing and discharging the supplied hot water and the hot water hot water by mixing means. That.
Moreover, when it has the said heating radiator, the operating state setting means in which the user can set the operating state of the said heating radiator, the said heating circulation heat medium from the said heating radiator, the said heat pump apparatus, and the said A first circulation path that returns to the heating radiator via a combustion heat source unit, and when the hot water supply device is provided, the user can set the operating state of the hot water supply device. An operation state setting means; a second circulation path for returning water from the hot water supply device to the hot water supply device via the combustion heat source unit; and water supply from the hot water supply device to the heat pump. And a third circulation path that returns to the hot water supply device via the device.
And the control means supplies the electric heat pump to the electric heat pump so that the power consumption detected by the power consumption detection means or the current consumption detected by the current consumption detection means does not exceed a preset threshold value. It is a hot water supply and heating system that controls supply power or supply current.

In this 1st invention, when it has a heating radiator, it arranges a heat pump device and a combustion heat source machine in series in the 1st circulation path, heats a heating circulation heat carrier, and has higher energy It becomes possible to heat with efficiency. Moreover, when it has a hot water supply apparatus, it produces | generates hot water supply hot water using a combustion heat source machine in a 2nd circulation path, and produces | generates hot water supply hot water using a heat pump apparatus in a 3rd circulation path, Hot water can be supplied with higher energy efficiency.
In addition, for driving an electric heat pump that consumes a large amount of power (or current consumption), a plurality of power load equipment including a heat pump device can be installed from a distribution board at home by using power consumption detection means (or current consumption detection means). By detecting the consumed power (or current) and driving it so as not to exceed a preset threshold, heating operation or hot water supply operation is performed so as not to exceed the maximum amount of contract power (or contract current). Can do.

Next, the second invention of the present invention is a combustion heat source unit having combustion heating means capable of heating each of hot water hot water and heating circulation heat medium by combustion, and each of hot water supply hot water and heating circulation heat medium. A heat pump that can be heated using a heat pump circulating heat medium heated by an electric heat pump and a heat pump heat exchanger, and a power supply device that is supplied to a plurality of power load equipment including the heat pump device and consumed. Mixing means of power consumption detection means or consumption current detection means capable of detecting electric power or current, a heating radiator that radiates heat using the heating circulation heat medium, water supplied from a water supply source and hot water supply hot water in a mixing means The hot water supply device that can be mixed and discharged, and the heating circulation heat medium from the heating radiator to the heat pump device and the combustion heat source machine, A first circulation path for returning to the chamber radiator, a second circulation path for returning the water supply from the water supply source to the hot water supply apparatus from the hot water supply apparatus via the combustion heat source unit, and water supply from the water supply source A third circulation path that returns from the hot water supply device to the hot water supply device via the heat pump device, an operating state setting means that allows a user to set operating states of the heating radiator and the hot water supply device, and the combustion heating Combustion control means for controlling the means, heat pump control means for controlling the electric heat pump, and hot water supply control means for controlling the hot water supply apparatus.
Further, the combustion control means and the heat pump control means are connected so as to communicate with each other via a first communication line, and the combustion control means and the hot water supply control means communicate with each other via a second communication line. The combustion control means and the operating state setting means are connected so that they can communicate with each other via a third communication line, and the power consumption detection means or It is connected so that the combustion control means can take in the detection signal of the consumption current detection means.
When the operation state is set by the user, the operation state setting unit transmits setting information including the set operation state to the combustion control unit, and the combustion control unit receives the received setting information. Transmitted to the heat pump control means, the combustion control means detects power consumption or current consumption based on a detection signal from the power consumption detection means or the current consumption detection means, and includes the detected power consumption or current consumption The consumption information is transmitted to the heat pump control means, and the heat pump control means supplies the electric heat pump so that the power consumption or current consumption based on the received consumption information does not exceed a preset threshold value. It is a hot water supply and heating system that controls electric power or supply current.

According to the second aspect of the invention, the heat pump device and the combustion heat source device are arranged in series in the first circulation path to heat the heating circulation heat medium, and the heating radiator is heated with higher energy efficiency. It becomes possible. Moreover, hot water supply hot water is produced | generated using a combustion heat source machine in a 2nd circulation path, and hot water supply hot water is produced | generated using a heat pump apparatus in a 3rd circulation path, and hot water supply can be supplied with higher energy efficiency. It becomes possible to do.
In addition, for driving an electric heat pump that consumes a large amount of power (or current consumption), a plurality of power load equipment including a heat pump device can be installed from a distribution board at home by using power consumption detection means (or current consumption detection means). By detecting the consumed power (or current) and driving it so as not to exceed a preset threshold, heating operation or hot water supply operation is performed so as not to exceed the maximum amount of contract power (or contract current). Can do.

  Next, a third invention of the present invention is the hot water supply / heating system according to the first invention or the second invention, wherein the control means or the heat pump control means does not exceed a preset threshold value. In addition, when the supply power or supply current to the electric heat pump is reduced or stopped, the combustion heat source machine is a hot water supply / heating system in which the heating amount is increased in accordance with the heating reduction amount by the electric heat pump.

  According to the third aspect of the invention, when the driving force (supply power, supply current, etc.) of the electric heat pump is reduced or stopped so as not to exceed a preset threshold value, the heating amount is reduced, but the reduced heating amount is reduced. It can be compensated appropriately with a combustion heat source machine.

  Next, 4th invention of this invention is the hot-water supply heating system which concerns on either of the said 1st invention-3rd invention, Comprising: The said operation state setting means is the said several electric power from the said electric power supply apparatus. It is possible to set a maximum supply amount that is the maximum value of electric power or current that can be supplied to the load facility, and the input maximum supply amount is transmitted to the control means or the heat pump via the combustion control means The control means or the heat pump control means transmits the power to the control means, the power consumption detected by the power consumption detection means or the current consumption detected by the current consumption detection means received maximum supply amount It is a hot water supply and heating system that controls supply power or supply current to the electric heat pump so as not to exceed.

  According to the fourth aspect of the present invention, it is easy to input the maximum supply amount (for example, contract current) from the operation state setting means so that the maximum amount of contract power (or contract current) is not exceeded by driving the electric heat pump. Can be set to

  Next, a fifth invention of the present invention is a hot water supply / heating system according to any one of the first to fourth inventions, wherein the operating state setting means has a display means, and the control When the supply power or supply current to the electric heat pump is reduced or stopped, the means or the heat pump control means directs the limited operation information indicating the reduction or stop to the operation state setting means. The hot water supply and heating system is configured to transmit or transmit to the operation state setting unit via the combustion control unit, and the operation state setting unit displays the received limited operation information on the display unit.

According to the fifth aspect of the invention, when the electric heat pump is in a limited operation so as not to exceed the maximum amount of contract power (or contract current), the operation state setting means displays that the limited operation is being performed. By doing this, it is possible to notify the user that the limited operation is being performed.
This encourages the user to stop using other power load equipment to prioritize the efficiency of the hot water heating and heating system, or to stop the hot water supply heating system to give priority to the use of other power load equipment. It is convenient because it can prompt.

It is a figure explaining one embodiment of hot water supply heating system 1 of the present invention. 4 is a flowchart illustrating an example of a processing procedure of an operation state setting unit 40. 3 is a flowchart illustrating an example of a processing procedure of a combustion control means 21. 4 is a flowchart illustrating an example of a processing procedure of a heat pump control unit 11.

EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated using drawing. FIG. 1 shows an embodiment of a hot water supply / heating system 1 of the present invention.
● [Overall configuration of hot water supply / heating system 1 (Fig. 1)]
As shown in FIG. 1, a hot water supply / heating system 1 includes a heat pump device 10, a combustion heat source unit 20, a heating radiator 30, an operating state setting means 40, a hot water supply device 50, a distribution board 60, a power consumption detection means 70, and the like. It is configured.
The first circulation path for circulating the heating circulation heat medium (for example, hot water) is formed by the heating circulation heat medium pipes H31, H12, and H23, and the heating circulation heat medium is transferred from the heating radiator 30 to the heat pump device 10. It returns to the heating radiator 30 via the combustion heat source unit 20 (the heating circulation heat medium circulates in the heating circulation heat medium pipes H31, H12, and H23 in FIG. 1 in the direction of the one-dot chain line).
The second circulation path for circulating the hot water supply hot water is formed by the hot water supply hot water pipes H52 and H25. The water supply from the water supply source supplied from the water supply pipe H5a is supplied from the hot water supply device 50 via the combustion heat source unit 20. Then, the hot water is returned to the hot water supply apparatus 50 (hot water hot water circulates in the hot water hot water pipes H52 and H25 in FIG.
The third circulation path for circulating the hot water supply hot water is formed by the hot water supply hot water pipes H51 and H15, and the water supply from the water supply source supplied from the water supply pipe H5a is passed through the heat pump device 10 from the hot water supply device 50. The hot water supply hot water circulates in the hot water supply hot water pipes H51 and H15 in FIG.

The heating radiator 30 is, for example, a floor heating device provided on the floor of the room R, and a heating circulation heat medium (for example, hot water) output from the combustion heat source unit 20 is input via the heating circulation heat medium pipe H23. The heat is radiated into R, and the heated circulation heat medium after heat radiation is output to the heat exchanger 13 through the heating circulation heat medium pipe H31.
The operation state setting means 40 is provided on the wall of the room R, etc., and the heating operation starting means for setting ON / OFF of the operation of the heating radiator 30 by the user, and the heating temperature setting means for setting the heating temperature numerically. (Or heating capacity setting means for selecting the set temperature at the capacity stage (strong, medium, weak, 1, 2, 3, 4, 5, etc.)) Hot water supply operation starting means for setting ON or OFF of the hot water supply operation Hot water supply temperature setting means for setting the hot water supply temperature numerically, hot water pressure setting means for setting the hot water temperature and hot water temperature, input means for the maximum current that can be supplied by the distribution board at home, setting state and operating state, etc. Display means, and control means such as a CPU.

The combustion heat source device 20 is a device that burns fossil fuels such as gas and oil to heat hot water supply hot water and a heating circulation heat medium, through a heating heat valve 29a, heat exchangers 23a and 23b, and a heat exchanger. Combustion heating means 22 (combustion burner or the like) for heating hot water supply hot water and heating circulation heat medium, combustion control means 21, fuel supply piping 22H, circulation pumps 24a and 24b, and the like are provided. And the combustion control means 21 is provided with control means, such as CPU, and controls the combustion heating means 22, the heating thermal valve 29a, and the circulation pumps 24a and 24b. The combustion heat source unit 20 is supplied with electric power from the distribution board 60 through the electric power line P62. Further, a part of the electric power supplied to the combustion heat source unit 20 is supplied to the operation state setting means 40 through the power line P64.
Further, the combustion control means 21 is connected so as to be communicable with the operation state setting means 40 via the third communication line L3, and is communicable with the heat pump control means 11 via the first communication line L1. And connected so as to be communicable with the hot water supply control means 51 via the second communication line L2, and captures the detection signal of the power consumption detection means 70 via the fourth communication line L4. Can do.

The heat pump device 10 includes a heat pump control means 11, an electric heat pump 12, a heat exchanger 13, circulation pumps 15a and 15c, and the like. And the heat pump control means 11 is provided with control means, such as CPU, and controls the electric heat pump 12 and the circulation pumps 15a and 15c. In addition, power is supplied to the heat pump device 10 from the distribution board 60 through the power line P61.
The heat exchanger 13 uses a heat pump circulation heat medium (for example, CO ₂ or R410A (alternative CFC refrigerant)) that circulates the heating circulation heat medium input from the heating circulation heat medium pipe H31 in the heat pump circulation heat medium pipe Hh. Then, the heated circulating heat medium is output to the heated circulating heat medium pipe H12 toward the combustion heat source unit 20.
The electric heat pump 12 can heat the heat pump circulating heat medium and adjust the flow rate of the heat pump circulating heat medium.

  The hot water supply device 50 includes a hot water supply control means 51, a hot water storage tank 52, a hot water supply hot water mixing means 53, a water supply pipe H5a supplied from a water supply source, a hot water supply pipe H5b for discharging mixed hot water, and the like. The hot water supply control means 51 is provided with control means such as a CPU. For example, the hot water supply control means 51 is controlled according to the operation amount of the hot water hot water mixing means 53 (for example, a mixing plug that mixes and outputs cold water and hot water). Hot water heated by the combustion heat source unit 20 via the circulation path or hot water heated by the heat pump device 10 via the third circulation path is stored in the hot water storage tank 52 or mixed with cold water to supply hot water. Or output from H5b. In addition, electric power is supplied from the combustion heat source unit 20 to the hot water supply device 50 through the power line P25.

The distribution board 60 is a device (power supply device) that distributes electricity supplied to each home from the power supply source 80 through the power line P68 to each room, etc., and has an ampere breaker and contracts as the maximum supply current. It is configured to automatically turn off the electricity when the contracted current is exceeded. Therefore, the distribution board 60 shown in FIG. 1 supplies electric power to various power load equipment in addition to the power load equipment including the heat pump device 10 shown in FIG. (The illustration is omitted). Note that electricity supplied from the power supply source 80 is supplied to the distribution board 60 via the power line P68, the power consumption detecting means 70, and the power line P67.
The power consumption detection means 70 (or current consumption detection means) generates a detection signal that can detect the sum of the power (or current) used in all the power load facilities to which power is supplied from the distribution board 60. Output. The combustion control means 21 can capture this detection signal via the fourth communication line L4 and obtain the total supply power (or total supply current) supplied from the distribution board 60.

With the above configuration, when the user activates the heating radiator 30 and desires the heating operation, the user operates the operation state setting unit 40 to set the activation (ON) of the heating operation of the heating radiator 30; Set desired heating temperature, operation time, etc. Then, the input information including the heating activation (ON), the heating set temperature, and the like is transmitted from the operation state setting means 40 to the combustion control means 21 via the third communication line L3 and via the first communication line L1. It is transmitted from the combustion control means 21 to the heat pump control means 11. The combustion control means 21 and the heat pump control means 11 that have received the input information control the combustion heating means 22 and the electric heat pump 12 based on the received input information.
When the user activates the hot water supply device 50 and desires hot water supply, the user operates the operating state setting means 40 to set the hot water supply operation start (ON) of the hot water supply device 50 and set the desired hot water supply temperature. To do. Then, input information including hot water supply start (ON), hot water supply set temperature, and the like is transmitted from the operation state setting means 40 to the combustion control means 21 via the third communication line L3, and the first communication line L1 and the second communication line L1. Is transmitted from the combustion control means 21 to the heat pump control means 11 and the hot water supply control means 51 via the communication line L2. The combustion control means 21, the heat pump control means 11, and the hot water supply control means 51 that have received the input information control the combustion heating means 22, the electric heat pump 12, and the hot water hot water mixing means 53 based on the received input information.

The electric heat pump 12 consumes a relatively large amount of power. For example, when it is used simultaneously with other power load equipment that consumes a large amount of power, such as a microwave oven or an air conditioner, a current exceeding the contract current flows to the distribution board 60 to supply power May be cut off automatically (ampere breaker will fall).
Therefore, in the hot water supply and heating system 1 of the present application, the electric heat pump 12 is controlled while monitoring the supply power from the distribution board 60 to the full power load facility, and the supply of power from the distribution board 60 is cut off. (Prevents the ampere breaker from falling).
Hereinafter, regarding the operation for preventing the interruption of the power supply, the respective processing procedures of the operation state setting means 40, the combustion control means 21, and the heat pump control means 11 will be described.

● [Processing procedure of the operation state setting means 40 (FIG. 2)]
Next, an example of the processing procedure of the operation state setting means 40 will be described using the flowchart shown in FIG. This process is executed, for example, every predetermined time or every time a message is received.
The operation state setting means 40 determines whether or not the maximum current information (maximum supply amount) has been input from the user in step S10. The maximum current information is, for example, the contract current (or contract power) of the distribution board 60. For example, when the contract current is 60 [A], “60” is input using the maximum current input means. When the maximum current information is input (Yes), the process proceeds to step S10a. When the maximum current information is not input (No), the process proceeds to step S10b.
When the process proceeds to step S <b> 10 b, the operating state setting unit 40 determines whether or not the maximum current information has already been transmitted to the combustion control unit 21. If it has been transmitted (Yes), the process proceeds to step S12. If it has not been transmitted (No), the process returns to step S10.
When it progresses to step S10a, the driving | running state setting means 40 transmits the input maximum current information to the combustion control means 21, and progresses to step S12.

In step S12, the operation state setting means 40 determines whether or not there is an input related to the hot water supply operation from the user. Note that the input relating to the hot water supply operation includes, for example, an input for instructing activation (ON) or stop (OFF) of the hot water supply apparatus 50, an input of a hot water supply temperature, an input of a hot water bath and a hot water temperature of a bath in a bathroom, and the like. When there is an input (Yes), the process proceeds to step S12a, and when there is no input (No), the process proceeds to step S14.
When it progresses to step S12a, the driving | running state setting means 40 transmits the input information containing the input information to the combustion control means 21, and progresses to step S14.
The operation state setting means 40 determines whether or not there is an input related to the heating operation from the user in step S14. The input related to the heating operation is, for example, an input for instructing activation (ON) or stop (OFF) of the heating radiator 30, an input of the heating temperature, an input of an operation time, and the like. When there is an input (Yes), the process proceeds to step S14a, and when there is no input (No), the process proceeds to step S16.
When it progresses to step S14a, the driving | running state setting means 40 transmits the input information containing the input information to the combustion control means 21, and progresses to step S16.

The operating state setting means 40 determines whether or not information is received from the combustion control means 21 in step S16. When there is information reception (Yes), the process proceeds to step S16a, and when there is no information reception (No), the process ends.
When the process proceeds to step S16a, when the information instructed to be displayed on the display unit is received, the information is displayed on the display unit. For example, when the output of the electric heat pump 12 is restricted so as not to exceed the contract current, when the information indicating that the output is restricted (restricted operation information) is received, it is set that the output is being restricted. Displayed on the display means of means 40 to inform the user that the output limiting operation is being performed.
This encourages users to stop using other power load equipment (such as air conditioners and microwave ovens) to prioritize the efficiency of the hot water heating and heating system, and hot water supply to prioritize the use of other power load equipment. This is convenient because it can prompt the user to stop the heating system.

● [Processing procedure of combustion control means 21 (FIG. 3)]
Next, an example of the processing procedure of the combustion control means 21 will be described using the flowchart shown in FIG. This process is executed, for example, every predetermined time or every time a message is received.
The combustion control means 21 determines whether or not the maximum current information is received from the operation state setting means 40 in step S20. When the maximum current information is received (Yes), the process proceeds to step S20a, and when the maximum current information is not received (No), the process proceeds to step S20b.
When the routine proceeds to step S20b, the combustion control means 21 determines whether or not the maximum current information has already been transmitted to the heat pump control means 11. If it has been transmitted (Yes), the process proceeds to step S22. If it has not been transmitted (No), the process returns to step S20.
When the process proceeds to step S20a, the combustion control unit 21 transmits the received maximum current information to the heat pump control unit 11, and the process proceeds to step S22.

In step S22, the combustion control means 21 takes in a detection signal from the power consumption detection means 70 (or current consumption detection means), and based on the detection signal, supplies all the supplied power (or all (Supply current) is obtained and the process proceeds to step S22a.
In step S22a, the combustion control means 21 transmits the current total supply power (or total supply current) to the heat pump control means 11, and proceeds to step S24.
In step S24, the combustion control means 21 determines whether or not there is an input related to the hot water supply operation from the user. Note that the input relating to the hot water supply operation includes, for example, an input for instructing activation (ON) or stop (OFF) of the hot water supply apparatus 50, an input of a hot water supply temperature, an input of a hot water bath and a hot water temperature of a bath in a bathroom, and the like. When there is an input (Yes), the process proceeds to step S24a, and when there is no input (No), the process proceeds to step S26.
When it progresses to step S24a, the combustion control means 21 transmits the input information containing the input information to the heat pump control means 11, and controls the combustion heat source unit 20 (related to the second circulation path and the third circulation path). The process proceeds to step S26.

In step S26, the combustion control means 21 determines whether or not there is an input related to the heating operation from the user. The input related to the heating operation is, for example, an input for instructing activation (ON) or stop (OFF) of the heating radiator 30, an input of the heating temperature, an input of an operation time, and the like. When there is an input (Yes), the process proceeds to step S26a, and when there is no input (No), the process proceeds to step S28.
When it progresses to step S26a, the combustion control means 21 transmits the input information containing the input information to the heat pump control means 11, and controls the combustion heat source machine 20 (controls the location regarding the 1st circulation path), Proceed to step S28.

The combustion control means 21 determines whether or not information is received from the heat pump control means 11 in step S28. If information has been received (Yes), the process proceeds to step S28a. If no information has been received (No), the process ends.
When the process proceeds to step S28a, when the information instructed to be displayed on the display means is received, the information is displayed on the display means. For example, when the output of the electric heat pump 12 is limited so as not to exceed the contract current, when the information indicating that the output is limited is received, the display unit of the operation state setting unit 40 indicates that the output limiting operation is being performed. To notify the user that the output limiting operation is in progress. In addition, when it is received from the heat pump control means 11 that the output limiting operation is being performed, the heating amount of the combustion heat source unit 20 is increased according to the heating reduction amount by the limiting operation of the electric heat pump, and the insufficient heating amount is compensated. .

● [Processing procedure of heat pump control means 11 (FIG. 4)]
Next, an example of the processing procedure of the heat pump control means 11 will be described using the flowchart shown in FIG. This process is executed, for example, every predetermined time or every time a message is received.
The heat pump control means 11 determines whether or not maximum current information has been received from the combustion control means 21 in step S30. When the maximum current information is received (Yes), the process proceeds to step S30a, and when the maximum current information is not received (No), the process proceeds to step S30c.
When the process proceeds to step S30c, the heat pump control unit 11 determines whether or not the maximum current information has already been set (stored). If it has been set (Yes), the process proceeds to step S30a. If it has not been transmitted (No), the process returns to step S30.
When the process proceeds to step S30a, the heat pump control unit 11 sets (stores) the received maximum current information in itself, and the process proceeds to step S30b.
When the process proceeds to step S30b, the heat pump control means 11 obtains the maximum allowable power (P1) (or maximum allowable current) that can be supplied to the electric heat pump 12, sets (stores) the maximum allowable power (P1), and performs step S32. Proceed to For example, when the maximum current information is 60 [A], the maximum allowable power P1 = 20 [A] is set.

When the process proceeds to step S32, the heat pump control unit 11 determines whether or not the total supply power information (the total power (or total current currently supplied from the distribution board 60)) has been received from the combustion control unit 21. To do. If received (Yes), the process proceeds to step S32a. If not received (No), the process proceeds to step S32c.
When the process proceeds to step S32c, the heat pump control unit 11 transmits transmission request information for requesting transmission of all supply power information to the combustion control unit 21, and returns to step S32.
When the process proceeds to step S32a, the heat pump control unit 11 determines that the total supply power based on the received total supply power information (the total power (or total current currently supplied from the distribution board 60)) is a predetermined power ( It is determined whether it is less than Pa (contract current etc.). When it is less than the predetermined power (Yes), the process proceeds to step S32b, and when it is not less than the predetermined power (No), the process proceeds to step S38b.
When the process proceeds to step S32b, the heat pump control unit 11 uses the power that can be supplied to the electric heat pump 12 based on the received total supply power information, the maximum allowable power (P1), and the maximum current information. A certain current allowable power (P2) (or current allowable current) is obtained, and the process proceeds to step S34. The current allowable power (P2) is determined so as to satisfy the current allowable power (P2) ≦ the maximum allowable power (P1).

When it progresses to step S34, the heat pump control means 11 determines whether the information regarding the hot water supply operation was received from the combustion control means 21. FIG. If received (Yes), the process proceeds to step S34a, and if not received (No), the process proceeds to step S36.
When the process proceeds to step S34a, the heat pump control means 11 controls the electric heat pump 12 with power equal to or lower than the current allowable power (P2) based on the received information (input information) (so as not to exceed a preset threshold value). Control), and the process proceeds to step S36.
When it progresses to step S36, the heat pump control means 11 determines whether the information regarding heating operation was received from the combustion control means 21. FIG. If received (Yes), the process proceeds to step S36a, and if not received (No), the process proceeds to step S38.
When the process proceeds to step S36a, the heat pump control means 11 controls the electric heat pump 12 with power equal to or lower than the current allowable power (P2) based on the received information (input information) (so as not to exceed a preset threshold value). Control), and the process proceeds to step S38. In addition, when performing both hot water supply operation and heating operation, the amount of heat by the electric heat pump necessary for hot water supply and the amount of heat by the electric heat pump necessary for heating are added, and the power corresponding to the added heat amount is equal to or less than the current allowable power (P2). The electric heat pump 12 is controlled with the power of (control so as not to exceed a preset threshold value).

When the process proceeds to step S38, the heat pump control unit 11 controls the electric heat pump 12, and the current allowable power (P2) (or the electric power (or current) that can be supplied to the electric heat pump 12 when there are no restrictions. It is determined whether or not an output limiting operation that limits the power with the current allowable current) or less is being performed. If it is restricted (Yes), the process proceeds to step S38a. If it is not restricted (No), the process is terminated.
When it progresses to step S38a, the heat pump control means 11 transmits the output control driving | operation information which shows that the output control driving | operation of the electric heat pump 12 is performed to the combustion control means 21, and complete | finishes a process.
When the process proceeds to step S38b, the heat pump control unit 11 stops the operation when the electric heat pump 12 is operating, and continues the stopped state when the electric heat pump 12 is not operating, and ends the process.

Note that the processing procedure of the hot water supply control means 51 is the same as the conventional one, and will be described briefly.
First, in step S24a in FIG. 3, input information related to the hot water supply operation (operation activation, hot water supply temperature, hot water instruction, hot water temperature, etc.) is transmitted from the combustion control means 21 to the hot water supply control means 51.
When the hot water supply control means 51 receives the input information related to the hot water supply operation from the combustion control means 21, the hot water supply control means 51 controls the mixing ratio of the hot water storage tank 52 and the mixing ratio of the hot water hot water mixing means 53 based on the received input information. Hot water is output from the pipe H5b, or hot water is charged to the bathtub.

● [Other hot water and heating systems]
In the above description, the example of the hot water supply and heating system 1 configured by the heating radiator 30, the operation state setting means 40, the heat pump device 10, the combustion heat source device 20, the hot water supply device 50, the power consumption detection means 70, and the like has been described.
Conventionally, with respect to the hot water supply / heating system 1, a hot water supply / heating system in which the heat pump device 10 is omitted (hereinafter referred to as a conventional heating device) has been widespread. In the conventional heating apparatus, the operation state setting means 40 and the combustion control means 21 are connected by the third communication line L3, and the combustion control means 21 and the hot water supply control means 51 are connected by the second communication line L2. , Each sending and receiving messages.
Therefore, the hot water supply / heating system 1 described in the present embodiment can be realized without wasting the conventional heating device only by adding the heat pump device 10 and the power consumption detection means 70 to the conventional heating device (which will be retrofitted). Thus, the heat pump device 10 and the power consumption detection means 70 can be added as follows.

First, the heat exchanger 13 is attached to the heating circulation heat medium pipe from the heating radiator 30 to the combustion heat source unit 20. And the communication line (3rd communication line L3) between the driving | running state setting means 40 and the combustion control means 21 is left as it is, and the combustion control means 21 and the electric heat pump 12 are connected by the 1st communication line L1. To do.
In this case, a control program for controlling the electric heat pump 12 is incorporated in the combustion control means 21 in advance, and the control program for controlling the electric heat pump 12 is started by connecting the first communication line L1 or switching the changeover switch or the like. It is configured to let you.
Alternatively, the control program of the combustion control means 21 is rewritten or exchanged from a program for controlling the combustion heating means 22 to a program for controlling the combustion heating means 22 and the electric heat pump 12.
As described above, the heat exchanger 13, the electric heat pump 12, and the power consumption detection means 70 constituting the heat pump device 10 constitute a hot water supply / heating system (for retrofitting).

The hot water supply and heating system 1 of the present invention is not limited to the appearance, configuration, processing, and the like described in the present embodiment, and various modifications, additions, and deletions can be made without departing from the scope of the present invention. For example, the configuration of the combustion heat source unit 20 is not limited to the combustion heat source unit 20 described in the present embodiment.
In the description of the present embodiment, an example in which the heating radiator 30 is floor heating has been described, but the heating radiator 30 is not limited to floor heating.
In the description of the present embodiment, an example in which the heating circulation heat medium is hot water has been described, but the heating circulation heat medium is not limited to hot water.
Moreover, the process of the operation state setting means 40, the process of the combustion control means 21, and the process of the heat pump control means 11 are not limited to the processes described in the present embodiment, and various changes, additions and deletions can be made. Is possible.
Further, the above (≧), the following (≦), the greater (>), the less (<), etc. may or may not include an equal sign.
The numerical values used in the description of the present embodiment are examples, and are not limited to these numerical values.
In the description of the present embodiment, the control means includes a combustion control means 21 that controls the combustion heat source unit 20, a heat pump control means 11 that controls the heat pump apparatus 10, and a hot water supply control means 51 that controls the hot water supply apparatus 50. Although the example has been described, the combustion heat source device 20, the heat pump device 10, and the hot water supply device 50 may be controlled by one control means.

DESCRIPTION OF SYMBOLS 1 Hot water supply heating system 10 Heat pump apparatus 11 Heat pump control means 12 Electric heat pump 13 Heat exchanger 20 Combustion heat source machine 21 Combustion control means 22 Combustion heating means 23a, 23b Heat exchangers 24a, 24b Circulation pump 30 Heating radiator 40 Operating state setting means DESCRIPTION OF SYMBOLS 50 Hot-water supply apparatus 51 Hot-water supply control means 52 Hot water storage tank 53 Hot-water supply hot water mixing means 60 Distribution board (electric power supply apparatus)
70 Power consumption detection means 80 Power supply source H31, H12, H23 Heating circulation heat medium piping H52, H25 Hot water supply hot water piping H51, H15 Hot water supply hot water piping Hh Heat pump circulation heat medium piping L1 1st communication line L2 2nd communication line L3 Third communication line L4 Fourth communication line P61, P62, P64, P67, P68, P25 Power line

Claims (5)

A combustion heat source machine having combustion heating means capable of heating each of hot water supply hot water and heating circulation heat medium by combustion;
A heat pump device capable of heating using a heat pump circulating heat medium and a heat pump heat exchanger each heated hot water and a heating circulating heat medium heated by an electric heat pump;
Power consumption detection means or current consumption detection means capable of detecting the power or current that is supplied from a power supply device to a plurality of power load facilities including the heat pump device and consumed; and
Control means for controlling at least the heat pump device,
There is at least one of a heating radiator that radiates heat using the heating circulation heat medium, and a hot water supply device that can mix and discharge the hot water supplied from a water supply source and the hot water hot water by mixing means. And
When the heating radiator is provided, the operating state setting means that allows the user to set the operating state of the heating radiator, the heating circulation heat medium from the heating radiator to the heat pump device, and the combustion heat source And a first circulation path that returns to the heating radiator via a machine,
In the case of having the hot water supply device, the operation state setting means by which a user can set the operation state of the hot water supply device and the water supply from the water supply source are passed from the hot water supply device through the combustion heat source machine. A second circulation path for returning to the hot water supply device, and a third circulation path for returning the water supplied from the water supply source to the hot water supply device from the hot water supply device via the heat pump device,
The control means supplies power to the electric heat pump so that the power consumption detected by the power consumption detection means or the current consumption detected by the current consumption detection means does not exceed a preset threshold value. Or control the supply current,
Hot water heating system. A combustion heat source machine having combustion heating means capable of heating each of hot water supply hot water and heating circulation heat medium by combustion;
A heat pump device capable of heating using a heat pump circulating heat medium and a heat pump heat exchanger each heated hot water and a heating circulating heat medium heated by an electric heat pump;
Power consumption detection means or current consumption detection means capable of detecting the power or current that is supplied from a power supply device to a plurality of power load facilities including the heat pump device and consumed; and
A heating radiator that radiates heat using the heating circulation heat medium;
A hot water supply apparatus capable of mixing and discharging the hot water supplied from a water supply source and the hot water hot water by mixing means;
A first circulation path for returning the heating circulation heat medium from the heating radiator to the heating radiator via the heat pump device and the combustion heat source unit;
A second circulation path for returning water supplied from the water supply source from the hot water supply device to the hot water supply device via the combustion heat source unit;
A third circulation path for returning the water supply from the water supply source to the hot water supply device via the heat pump device from the hot water supply device;
An operating state setting means that allows a user to set the operating state of the heating radiator and the hot water supply device;
Combustion control means for controlling the combustion heating means;
Heat pump control means for controlling the electric heat pump;
Hot water supply control means for controlling the hot water supply device,
The combustion control means and the heat pump control means are connected via a first communication line so that they can communicate with each other,
The combustion control means and the hot water supply control means are connected by a second communication line so as to be able to communicate with each other,
The combustion control means and the operating state setting means are connected via a third communication line so that they can communicate with each other,
A fourth communication line is connected so that the combustion control means can capture the detection signal of the power consumption detection means or the current consumption detection means;
When the operation state is set by a user, the operation state setting unit transmits setting information including the set operation state to the combustion control unit, and the combustion control unit transmits the received setting information to the heat pump. To the control means,
The combustion control means detects power consumption or current consumption based on a detection signal from the power consumption detection means or current consumption detection means, and consumption information including the detected power consumption or current consumption is detected by the heat pump control means. To
The heat pump control means controls the supply power or supply current to the electric heat pump so that the power consumption or current consumption based on the received consumption information does not exceed a preset threshold.
Hot water heating system. The hot water supply and heating system according to claim 1 or 2,
When the control means or the heat pump control means reduces or stops the supply power or supply current to the electric heat pump so as not to exceed a preset threshold value, the combustion heat source unit performs heating by the electric heat pump. Increase the heating amount according to the reduction amount,
Hot water heating system. It is the hot-water supply heating system as described in any one of Claims 1-3,
The operation state setting means can set a supply maximum amount that is a maximum value of power or current that can be supplied from the power supply device to the plurality of power load facilities, and the input supply maximum amount is determined by the control means. Or to the heat pump control means via the combustion control means,
The control means or the heat pump control means is configured so that the power consumption detected by the power consumption detection means or the current consumption detected by the current consumption detection means does not exceed the received maximum supply amount. Control the power or current supplied to the heat pump,
Hot water heating system. It is the hot-water supply heating system as described in any one of Claims 1-4,
The operating state setting means has a display means,
When the control means or the heat pump control means reduces or stops the supply power or supply current to the electric heat pump, the operation state setting means indicates limited operation information indicating that the supply power or supply current is reduced or stopped. Transmitted toward the operation state setting means via the combustion control means,
The operation state setting means displays the received limited operation information on the display means.
Hot water heating system.

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