JP6535585B2 - Blackout detection system - Google Patents

Description

  The technology disclosed herein relates to a power failure detection system.

  The power supply system disclosed in Patent Document 1 includes a commercial power supply and a storage battery capable of supplying power to a thermal device. In this power supply system, normally, power is supplied from the commercial power source to the thermal equipment, and when the power supply from the commercial power source is stopped (power failure), the power supply from the storage battery is started. By this, power can be supplied from the storage battery to the thermal equipment at the time of a power failure.

JP, 2013-88060, A

  In the power supply system of Patent Document 1, since the power is supplied to the thermal device at both the normal time and the power failure time, the thermal device can not determine whether or not the power failure occurs. Thus, the present specification provides a technology that allows a thermal device to appropriately determine whether a power failure has occurred.

  The power failure detection system disclosed in the present specification is a system in which power is supplied through a general load system and a critical load system. This blackout detection system includes a commercial power supply capable of supplying power through a general load system and a critical load system, a storage battery capable of supplying power through a critical load system, a blackout detection device connected to the general load system, a critical load system And a control means for starting the power supply from the storage battery when the power supply from the commercial power source is stopped.

  The blackout detection device includes a plug to be plugged into an outlet of a general load system, a first power line and a second power line connected to the plug, and a measurement unit that measures voltage or frequency between the first power line and the second power line A power failure determination unit that determines a power failure based on the voltage or frequency measured by the measurement unit, and a communication unit that transmits a determination result determined by the power failure determination unit to a thermal device.

  According to such a configuration, power is normally supplied from the commercial power supply to the power failure detection device through the general load system, and power is supplied from the commercial power supply to the thermal equipment through the important load system. When the power supply from the commercial power supply is stopped (a power failure), the power can not be supplied through the general load system. Therefore, power is not supplied to the blackout detection device at the time of blackout. On the other hand, since power supply from the storage battery is started when there is a power failure, power can be supplied from the storage battery to the thermal equipment through the important load system. Therefore, power is supplied to the thermal equipment at both normal and power outages.

  Further, according to the above configuration, when a power failure occurs, power is not supplied to the power failure detection device through the general load system, so the voltage or frequency between the first power line and the second power line of the power failure detection device decreases (for example, The voltage between one power line and the second power line drops from 100 V at the normal time to 0 V at the power failure, or the frequency between the first power line and the second power line changes from 50 Hz at the normal time to 0 Hz at the power failure descend.). Then, the measuring unit measures the voltage or frequency, the power failure judging unit judges the power failure based on the measured voltage or frequency, and the communication unit transmits the judgment result to the thermal device. This allows the thermal device to appropriately determine whether or not a power failure has occurred.

  Alternatively, the blackout detection device is based on a measurement unit that measures the voltage or frequency between the first voltage line and the second voltage line connected to the outlet of the general load system, and the voltage or frequency measured by the measurement unit. And a communication unit for judging the power failure judgment unit and transmitting the judgment result to the thermal device.

  According to such a configuration, similarly to the above, since power will not be supplied through the general load system when there is a power failure, the voltage between the first voltage line and the second voltage line connected to the outlet of the general load system or The frequency decreases (for example, the voltage between the first voltage line and the second voltage line drops from 100 V at the normal time to 0 V at the time of a power failure, or the frequency between the first voltage line and the second voltage line However, it drops from 50Hz at normal times to 0Hz at power failure. Then, the measuring unit measures the voltage, the power failure judging unit judges the power failure based on the measured voltage, and the communication unit transmits the judgment result to the thermal device. This allows the thermal device to appropriately determine whether or not a power failure has occurred.

  In each of the power failure detection systems described above, the thermal device may be operable in the normal operation mode and the suppression operation mode in which the power consumption is suppressed more than the normal operation mode. The thermal device may switch between the normal operation mode and the suppression operation mode based on the determination result received from the communication unit.

  According to such a configuration, since the normal operation mode and the suppression operation mode can be switched based on the determination result determined by the power failure determination unit, the normal operation mode and the suppression operation mode can be appropriately switched.

  Also, the communication unit may transmit the determination result via the wireless router.

  According to such a configuration, the determination result of the blackout can be reliably transmitted to the thermal device.

It is a schematic diagram of the blackout detection system which concerns on an Example. It is a schematic diagram of a part of blackout detection system concerning an example. It is a schematic diagram of the blackout detection apparatus which concerns on an Example. It is a schematic diagram of a part of blackout detection system concerning an example. It is a schematic diagram of the thermal equipment concerning an example. It is a schematic diagram of a part of the blackout detection system which concerns on another Example. It is a schematic diagram of a part of the blackout detection system which concerns on another Example.

  As shown in FIG. 1, the blackout detection system 1 according to the embodiment includes a commercial power supply 2, a storage battery 3, a first distribution board 12, and a second distribution board 13. The blackout detection system 1 also includes a general load system 14 and an important load system 15. The blackout detection system 1 is a system for supplying power to electrical devices through the general load system 14 and the important load system 15. The blackout detection system 1 further includes a blackout detection device 16 and a thermal device 17.

  The commercial power source 2 is connected to an external power system. Electric power is supplied from an external power system to the commercial power supply 2. The commercial power supply 2 is connected to the general load system 14 via the first distribution board 12. The commercial power supply 2 supplies power to the general load system 14 via the first distribution board 12. The commercial power supply 2 is connected to the important load system 15 via the first distribution board 12 and the second distribution board 13. The commercial power source 2 supplies power to the important load system 15 via the first distribution board 12 and the second distribution board 13.

  The first distribution board 12 is connected to a commercial power supply 2. As shown in FIG. 2, the first distribution board 12 includes one master breaker 121 and a plurality of branch breakers 122. The commercial power supply 2 and the main circuit breaker 121 are electrically connected by the power supply wiring 123. The main circuit breaker 121 and the plurality of branch breakers 122 are electrically connected by the branch wiring 124. Each of the plurality of branch breakers 122 and the plurality of outlets 141 is electrically connected by voltage lines (first voltage line 125 a and second voltage line 125 b).

  The general load system 14 includes a plurality of voltage lines 125 a and 125 b and a plurality of outlets 141. The general load 142 can be connected to each of the plurality of outlets 141. The general load 142 is connected to the general load system 14 via the outlet 141. The general load 142 is, for example, an electric device such as an air conditioner, a microwave oven, and a washing machine. The general load 142 is supplied with power only from the commercial power source 2 through the general load system 14. No power is supplied from the storage battery 3 to the general load 142. When the supply of power from the commercial power source 2 is stopped (a power failure), the general load 142 is not supplied with power. Each outlet 141 includes a pair of poles (a first pole 141a and a second pole 141b).

  In addition, the power failure detection device 16 can be connected to the outlet 141 of the general load system 14. The power failure detection device 16 is connected to the general load system 14 via the outlet 141.

  The power failure detection device 16 includes a housing 161, a plug 162, a pair of power lines (a first power line 163a and a second power line 163b), and an outlet 164, as shown in FIG. The power failure detection device 16 further includes a voltage measurement unit 165 (an example of a measurement unit), a power failure determination unit 166, and a communication unit 167.

  The plug 162 is inserted into the outlet 141 of the general load system 14. The plug 162 includes a pair of terminals (a first terminal 162a and a second terminal 162b). The first terminal 162 a of the plug 162 is connected to the first pole 141 a of the outlet 141, and the second terminal 162 b of the plug 162 is connected to the second pole 141 b of the outlet 141.

  A pair of power lines (first power line 163 a and second power line 163 b) are connected to the plug 162. The first power line 163 a is connected to the first terminal 162 a of the plug 162, and the second power line 163 b is connected to the second terminal 162 b of the plug 162. At the time of energization, the potential of either one of the first power line 163a and the second power line 163b becomes high and the other becomes low.

  The outlet 164 is connected to a pair of power lines (a first power line 163a and a second power line 163b). The outlet 164 includes a pair of poles (a first pole 164 a and a second pole 164 b). The first pole 164a of the outlet 164 is connected to the first power line 163a, and the second pole 164b of the outlet 164 is connected to the second power line 163b. The general load 142 can be connected to the outlet 164. The general load 142 is connected to the general load system 14 via the power failure detection device 16. Electric power is supplied to the general load 142 connected to the blackout detection device 16 from the commercial power source 2 through the general load system 14 and the blackout detection device 16.

  The voltage measurement unit 165 is connected to the first power line 163a and the second power line 163b. The voltage measurement unit 165 measures the voltage between the first power line 163a and the second power line 163b.

  The power failure determination unit 166 determines a power failure based on the voltage measured by the voltage measurement unit 165. When the voltage between the first power line 163a and the second power line 163b is equal to or lower than a predetermined voltage, the power failure determining unit 166 determines that a power failure has occurred (the power is not supplied from the commercial power supply 2). For example, the power failure determining unit 166 determines that a power failure has occurred when the voltage between the first power line 163a and the second power line 163b is 0V. On the other hand, when the voltage between the first power line 163a and the second power line 163b is equal to or higher than a predetermined voltage, the power failure determining unit 166 determines that there is no power failure. For example, when the voltage between the first power line 163a and the second power line 163b is 100 V, the power failure determining unit 166 determines that there is no power failure.

  The communication unit 167 transmits the determination result determined by the power failure determination unit 166 to the thermal device 17. The communication unit 167 transmits the determination result by wireless communication. Power is supplied from the battery 168 to the voltage measurement unit 165, the power failure determination unit 166, and the communication unit 167.

  The storage battery 3 shown in FIG. 1 is, for example, a lithium ion storage battery, and can store power. The storage battery 3 is connected to the important load system 15 via the second distribution board 13. The storage battery 3 supplies power to the important load system 15 via the second distribution board 13.

  The second distribution board 13 is connected to the commercial power supply 2 and the storage battery 3. As shown in FIG. 4, the second distribution board 13 includes one master breaker 131 and a plurality of branch breakers 132. The commercial power supply 2 and the main circuit breaker 131 are electrically connected by the power transmission wiring 126. The commercial power supply 2 and the storage battery 3 are electrically connected by the power transmission wire 126 and the charge wire 127. The power supplied from the commercial power source 2 is charged to the storage battery 3. The storage battery 3 and the master breaker 131 are electrically connected by the discharge wire 128. The storage battery 3 discharges the charged power. Further, the main circuit breaker 131 and the plurality of branch breakers 132 are electrically connected by the branch wiring 134. Each of the plurality of branch breakers 132 and the plurality of outlets 151 is electrically connected by voltage lines (third voltage line 135 a and fourth voltage line 135 b).

  The important load system 15 includes a plurality of voltage lines 135 a and 135 b and a plurality of outlets 151. The important load 152 can be connected to each of the plurality of outlets 151. The important load 152 is connected to the important load system 15 via the outlet 151. The important load 152 is, for example, an electric device such as a television, a refrigerator, or a light. In addition, there is also an important load connected to the important load system 15 without passing through the outlet 151. For example, the thermal device 17 (an example of the important load) is connected to the important load system 15 without the outlet 151. The important loads 152, 17 are supplied with power from either the commercial power supply 2 or the storage battery 3 through the important load system 15. When the supply of power from the commercial power supply 2 is stopped (power failure), power is supplied from the storage battery 3 to the important loads 152, 17.

  The second distribution board 13 includes a switch 139. The switch 139 can switch between a path where power is supplied from the commercial power supply 2 to the important load system 15 and a path where power is supplied from the storage battery 3 to the important load system 15. Under normal conditions, the switch 139 is input to the commercial power source 2 side. At the time of a power failure, the switch 139 is input to the storage battery 3 side. When the power supply from the commercial power supply 2 is stopped (power failure), the control device 100 switches the switch 139 from the commercial power supply 2 side to the storage battery 3 side. Further, when power is recovered from the commercial power supply 2 after recovery from a power failure, the control device 100 switches the switch 139 from the storage battery 3 side to the commercial power supply 2 side.

  The thermal device 17 is operable in the normal operation mode and the suppression operation mode. In the suppression operation mode, the operation of the thermal device 17 is suppressed. The power consumption of the thermal device 17 in the suppression operation mode is suppressed more than the power consumption of the thermal device 17 in the normal operation mode. When the thermal device 17 is operated in the normal operation mode, the power consumption is relatively large, and when the thermal device 17 is operated in the suppression operation mode, the power consumption is relatively small. The power consumption of the thermal device 17 is increased when the heat pump 50 described later is operating. When the operation of the heat pump 50 is suppressed, the power consumption of the thermal device 17 is suppressed. In the suppression operation mode of the thermal device 17, the operation of the heat pump 50 is suppressed. In the normal operation mode of the thermal device 17, the operation of the heat pump 50 is not suppressed.

  Next, an example of the thermal device will be described. In the present embodiment, a hot water supply heating device is used as the heat device. As shown in FIG. 5, the heat device 17 (hot water supply / heating device) includes a tank unit 4, a heat pump unit 6, a heat source unit 8, and a heat device control device 180.

  The heat pump unit 6 includes a heat pump 50 and a hot water supply water circulation pump 22. The heat pump 50 includes a refrigerant circulation path 52 for circulating a refrigerant (for example, HFC refrigerant such as R410A, natural refrigerant such as CO2, isobutane, propane, etc.), an air heat exchanger 54, a fan 56, and a compressor 62. , A hot water supply heat exchanger 51, a heating heat exchanger 53, and an expansion valve 60. In the heat pump 50, the air heat exchanger 54 constitutes an evaporator, and the hot water supply heat exchanger 51 and the heating heat exchanger 53 constitute a condenser.

  The air heat exchanger 54 exchanges heat between the outside air blown by the fan 56 and the refrigerant in the refrigerant circuit 52. The air heat exchanger 54 is supplied with the refrigerant in the low pressure low temperature liquid state after passing through the expansion valve 60. The air heat exchanger 54 heats the refrigerant by heat exchange between the refrigerant and the outside air. The refrigerant is vaporized by being heated and becomes a relatively high temperature, low pressure gaseous state.

  The refrigerant after passing through the air heat exchanger 54 is supplied to the compressor 62. That is, the compressor 62 is supplied with a relatively high temperature, low pressure gaseous refrigerant. As the refrigerant is compressed by the compressor 62, the refrigerant is in a high temperature / high pressure gas state. The compressor 62 feeds the compressed high-temperature high-pressure gaseous refrigerant to the hot water supply heat exchanger 51.

  The hot-water supply heat exchanger 51 is supplied with the high-temperature high-pressure gaseous refrigerant sent from the compressor 62. The hot water supply heat exchanger 51 performs heat exchange between the refrigerant in the refrigerant circulation path 52 and the water in the tank water circulation path 20 described later (an example of a heat medium, hereinafter also referred to as hot water supply water). The refrigerant that has passed through the hot water supply heat exchanger 51 is sent to the heating heat exchanger 53. The heating heat exchanger 53 exchanges heat between the refrigerant from the hot water supply heat exchanger 51 and the water from the second heating heating path 84 described later (this is an example of a heat medium, hereinafter also referred to as heating water). Do. The refrigerant loses heat and condenses as a result of heat exchange in the hot water supply heat exchanger 51 and / or the heating heat exchanger 53. As a result, the refrigerant is in a liquid state of relatively low temperature and high pressure.

  The expansion valve 60 is supplied with the refrigerant in the liquid state at a relatively low temperature and high pressure after passing through the heating heat exchanger 53. The refrigerant is depressurized by passing through the expansion valve 60 to be in a low temperature and low pressure liquid state. The refrigerant having passed through the expansion valve 60 is sent to the air heat exchanger 54 as described above.

  In the heat pump 50, when the compressor 62 is operated, the refrigerant in the refrigerant circulation path 52 circulates in the order of the compressor 62, the hot water supply heat exchanger 51, the heating heat exchanger 53, the expansion valve 60, and the air heat exchanger 54. . Thereby, the hot water supply water (heat medium) in the tank water circulation passage 20 is heated in the hot water supply heat exchanger 51 and / or the heating water (heat medium) from the second heating heating passage 84 in the heating heat exchanger 53 is It is heated. The hot water supply heat exchanger 51 and the heating heat exchanger 53 can also be referred to as a heating device 55 that uses the refrigerant as a heating fluid to heat the hot water and / or the heating water.

  The tank unit 4 includes a tank 10. The tank 10 stores hot-water supply water heated by the heat pump 50. The hot water supply water of the present embodiment is tap water. The tank 10 is of a closed type and is covered on the outside by a heat insulating material. Hot water supply water is stored in the tank 10 until the water is full.

  The upstream end of the tank water circulation passage 20 is connected to the lower part of the tank 10, the hot water supply heat exchanger 51 of the heat pump unit 6 passes through, and the downstream end is connected to the upper part of the tank 10. A hot water supply water circulation pump 22 of the heat pump unit 6 is interposed in the tank water circulation passage 20. In the heat pump unit 6, when the heat pump 50 is operated and the hot water supply water circulation pump 22 is driven, the hot water supply water at the lower part of the tank 10 is sent to the hot water supply heat exchanger 51 and heated. It is returned to the top. Inside the tank 10, a temperature stratification is formed in which a layer of high temperature hot water is stacked on a layer of low temperature hot water.

  The tap water introduction path 24 is connected at its upstream end to a tap water supply source 32 outside the heat device 17 (hot water supply heating device). The downstream side of the tap water introduction passage 24 is branched into a first introduction passage 24 a and a second introduction passage 24 b. The downstream end of the first introduction passage 24 a is connected to the lower portion of the tank 10. The downstream end of the second introduction passage 24 b is connected to the middle of the first hot water supply passage 36.

  An upstream end of the first hot water supply passage 36 is connected to the upper portion of the tank 10. As described above, in the middle of the first hot water supply passage 36, the second introduction passage 24b of the tap water introduction passage 24 is connected. A mixing valve 30 is interposed at the connection between the first hot water supply passage 36 and the second introduction passage 24b. The mixing valve 30 adjusts the ratio of the flow rate of the hot water for hot water flowing into the first hot water supply passage 36 from the top of the tank 10 and the flow rate of the low temperature tap water flowing into the first hot water supply passage 36 from the second introduction passage 24b. Do. The first hot water supply passage 36 downstream of the connection with the second introduction passage 24 b passes through the hot water supply heating passage 37 of the heat source unit 8 and is connected to the second hot water supply passage 39. The heat source bypass passage 33 is connected between the first hot water supply passage 36 and the second hot water supply passage 39. A bypass valve 34 is interposed in the heat source unit bypass passage 33. The downstream end of the second hot water supply passage 39 is connected to the hot water supply tap 38.

  The heat source unit 8 includes a cistern 70, a heating burner 82, and a hot water supply burner 81. The heating burners 82 and the hot water supply burners 81 can also be referred to as a gas heat source unit 150 that heats the heat medium. The cistern 70 is a container whose top is open and stores heating water inside. The heating water in this embodiment is, for example, tap water or antifreeze. The upstream end of the heating forward path 72 is connected to the cistern 70. A heating water circulation pump 74 is interposed in the heating forward path 72. When the heating water circulation pump 74 is driven, the heating water in the cistern 70 flows into the heating forward path 72.

  The downstream end of the forward heating path 72 is branched into a first heating heating path 73 and a low-temperature heating circuit 75. A low temperature heater 78 is attached to the low temperature heating circuit 75. The low-temperature heater 78 of this embodiment is, for example, a floor heater. The low temperature heater 78 heats using the heat of the supplied heating water. A heating burner 82 is interposed in the first heating heating path 73. The heating burner 82 heats the heating water in the first heating heating path 73. The downstream end of the first heating heating path 73 is branched into a high temperature heating circulation path 77 and a reheating circulation path 79. A high temperature heater 76 is attached to the high temperature heating circuit 77. The high temperature heater 76 of the present embodiment is, for example, a bathroom heater / dryer. The high temperature heater 76 heats using the heat of the supplied heating water. The low temperature heating circuit 75 and the high temperature heating circuit 77 join at their respective downstream ends and are connected to the upstream end of the second heating / heating path 84.

  The downstream end of the second heating and heating path 84 passes through the heating heat exchanger 53 of the heat pump unit 6 and is connected to the heating return path 96. The downstream end of the heating return path 96 is connected to the system turn 70 of the heat source unit 8.

  A reheating heat valve 83 and a reheating heat exchanger 97 are interposed in the reheating circulation path 79. The reheating heat valve 83 opens and closes the reheating circulation path 79. In the reheating heat exchanger 97, heat exchange is performed between the heating water flowing through the reheating circulation path 79 and the bath water flowing through the bath water circulation path 91. The downstream end of the reheating circulation path 79 is connected to the heating return path 96.

  The upstream end of the bathtub water circulation path 91 is connected to the bottom of the bathtub 98. The downstream end of the bathtub water circulation path 91 is connected to the side of the bathtub 98. A bathtub water circulation pump 99 is interposed in the bathtub water circulation path 91. When the bath water circulation pump 99 is driven, bath water drawn from the bottom of the bath 98 passes through the additional heat exchanger 97 and is returned to the side of the bath 98.

  A hot water supply burner 81 is interposed in the hot water supply heating path 37. The bathtub pouring path 40 is branched from the downstream side of the hot water supply burners 81 of the hot water supply heating path 37. A pouring solenoid valve 42 for opening and closing the bathtub pouring passage 40 is interposed in the bathtub pouring passage 40. The downstream end of the bathtub pouring passage 40 is connected to a bathtub water circulation pump 99.

  The thermal device control device 180 controls the operation of each component of the tank unit 4, the heat pump unit 6, and the heat source unit 8.

  The thermal equipment 17 (hot water supply and heating apparatus) can perform a heat storage operation, a hot water supply operation, a heating operation, a hot water operation, a reheating operation, an antifreeze operation, and the like as follows.

(Heat storage operation)
In the heat storage operation, the hot water for hot water storage in the tank 10 is heated by the heat pump 50, and the hot water for hot water supply is returned to the tank 10. When executing the heat storage operation, the thermal device control device 180 drives the compressor 62 and the fan 56 to operate the heat pump 50 and drives the hot water supply water circulation pump 22.

  By driving the compressor 62, the refrigerant in the refrigerant circulation path 52 circulates in the order of the compressor 62, the hot water supply heat exchanger 51, the heating heat exchanger 53, the expansion valve 60, and the air heat exchanger 54. In this case, the refrigerant in the refrigerant circulation path 52 passing through the hot water supply heat exchanger 51 is in a high temperature / high pressure gas state. Further, the hot water supply water in the tank 10 circulates in the tank water circulation passage 20 by driving the hot water supply water circulation pump 22. That is, the hot water supply water present in the lower part of the tank 10 is introduced into the tank water circulation passage 20, and the introduced hot water supply water is heated by the heat of the refrigerant in the refrigerant circulation passage 52 when passing through the hot water supply heat exchanger 51. The heated water for hot water supply is returned to the top of the tank 10. Thereby, the hot water for hot water supply is stored in the tank 10. When the inside of the tank 10 is in a full storage state filled with high temperature hot water, the heat storage operation is ended.

(Hot water supply operation)
The hot water supply operation is an operation for supplying the hot water supply water in the tank 10 to the hot water supply tap 38. The hot water supply operation can also be performed in parallel with the above-described heat storage operation. When the hot water supply tap 38 is opened, tap water flows into the lower part of the tank 10 from the tap water introduction passage 24 (first introduction passage 24 a) by the water pressure from the tap water supply source 32. At the same time, the hot water supply water at the upper part of the tank 10 is supplied to the hot water supply tap 38 via the first hot water supply passage 36.

  When the temperature of the hot water supply water supplied from the tank 10 to the first hot water supply passage 36 is higher than the hot water supply set temperature, the thermal device control device 180 drives the mixing valve 30 to set the first introduction passage 24 b to the first Introduce tap water to the hot water supply passage 36. Therefore, the hot water supply water supplied from the tank 10 and the tap water supplied from the second introduction passage 24 b are mixed in the first hot water supply passage 36. The thermal device control device 180 adjusts the degree of opening of the mixing valve 30 so that the temperature of the hot water supply water supplied to the hot water supply tap 38 matches the hot water supply set temperature. On the other hand, when the temperature of the hot water supply water supplied from the tank 10 to the first hot water supply passage 36 is lower than the hot water supply set temperature, the thermal device control device 180 passes the first hot water supply passage 36 by the hot water supply burner 81 Heat the water. The thermal device control device 180 controls the output of the hot water supply burner 81 such that the temperature of the hot water supply water supplied to the hot water supply plug 38 matches the hot water supply set temperature.

(Heating operation)
In the heating operation, heating water is heated by the heat pump 50, and heating is performed by the low-temperature heater 78 or the high-temperature heater 76 using the heating water that has reached a high temperature. When the user instructs execution of the heating operation, the thermal device control device 180 causes the heating water circulation pump 74 to rotate. Further, the thermal device controller 180 drives the compressor 62 and the fan 56.

  By driving the compressor 62, the refrigerant in the refrigerant circulation path 52 circulates in the order of the compressor 62, the hot water supply heat exchanger 51, the heating heat exchanger 53, the expansion valve 60, and the air heat exchanger 54. In this case, the refrigerant in the refrigerant circuit 52 passing through the heating heat exchanger 53 is in a high temperature / high pressure gaseous state. Further, by driving the heating water circulation pump 74, the heating water in the cistern 70 is circulated through the second heating heating path 84. The heating water circulating in the second heating / heating path 84 is heated by the heat of the refrigerant in the refrigerant circulation path 52 when passing through the heating heat exchanger 53. The heating water heated by the heating heat exchanger 53 is supplied to the low-temperature heater 78 and the high-temperature heater 76 through the system turn 70. Furthermore, the thermal device controller 180 operates the heating burner 82 as needed. As a result, the high-temperature heater 76 is supplied with water for heating that has become even higher due to the heating by the heating burner 82. In the heating operation, the temperature of the heating water supplied to the low temperature heater 78 is the low temperature heating set temperature, and the temperature of the heating water supplied to the high temperature heater 76 is the high temperature heating set temperature. The operation of the heat pump 50 and the output of the heating burner 82 are adjusted.

(Hot water operation)
The hot water driving is a driving to hot water the bathtub 98. When the user instructs the start of the hot water heating operation, the thermal device 17 (hot water supply and heating device) starts the hot water heating operation. In the hot water operation, the pouring solenoid valve 42 is opened. When the pouring solenoid valve 42 is opened, tap water flows into the lower portion of the tank 10 from the tap water introduction passage 24 (first introduction passage 24 a) by the water pressure from the tap water supply source 32. At the same time, the hot water for hot water supply in the upper part of the tank 10 is supplied to the bath tub 98 via the first hot water supply path 36, the bathtub pouring bath 40, and the bath water circulation path 91. In the hot water heating operation, the temperature of the water supplied to the bathtub pouring water passage 40 is adjusted to the hot water heating setting temperature in the same manner as the hot water supply operation. When the amount of water supplied to the bath 98 reaches the hot water setting water amount, the hot water operation is ended.

(Repulse operation)
The reheating driving is a driving for repelling the bathtub water stored in the bathtub 98. When the user instructs the start of the reheating operation, the thermal device 17 (hot water supply heating device) starts the reheating operation. In the reheating operation, the bathtub water circulation pump 99 is driven. Further, the reheating heat valve 83 is opened, and the heating water circulation pump 74 is driven. Thus, bath water is sucked from the bottom of the bath 98 and heated by heat exchange with the heating water in the additional heat exchanger 97. The heated bath water is returned to the side of the bath 98. In the reheating operation, the heating water is heated by the heating burner 82.

(Freezing prevention operation)
The antifreeze operation prevents the hot water supply water in the hot water supply heat exchanger 51 and the tank water circulation passage 20 and the water for heating in the heating heat exchanger 53, the second heating heating passage 84 and the heating return passage 96 from freezing. Driving. Since the hot water supply heat exchanger 51 and a part of the tank water circulation passage 20 are disposed outdoors, there is a risk that the hot water supply water may freeze if the hot water supply water stays in the inside for a long time with the outside air temperature low. There is. Therefore, when there is a possibility that the hot water supply water may freeze, the thermal device 17 (hot water supply / heating device) drives the hot water supply water circulation pump 22. Thereby, the hot water supply water inside the hot water supply heat exchanger 51 and the tank water circulation passage 20 can be replaced with the hot water supply water from the tank 10, and the hot water supply water can be prevented from freezing due to long-term retention. Similarly, since the heating heat exchanger 53, the second heating heating path 84, and part of the heating return path 96 are disposed outdoors, heating water remains in the interior for a long time with the outside air temperature low. And, there is a risk that the water for heating will freeze. Then, when there is a possibility that the water for heating may freeze, the thermal equipment 17 (hot water supply heating device) drives the water circulation pump 74 for heating. As a result, the heating water inside the heating heat exchanger 53, the second heating heating path 84 and the heating return path 96 is replaced with the heating water from the cistern 70, and the heating water freezes due to long-term retention. It can prevent.

  Next, the operation of the power failure detection system will be described. In the above-described blackout detection system 1, power is normally supplied from the commercial power source 2. The power supplied from the commercial power source 2 is supplied to the general load system 14 through the first distribution board 12. Then, the power is supplied to the blackout detection device 16 and the plurality of general loads 142 through the general load system 14.

  Further, the power supplied from the commercial power supply 2 is supplied to the important load system 15 through the first distribution board 12 and the second distribution board 13. Then, this power is supplied to the thermal equipment 17 and the plurality of important loads 152 through the important load system 15. The thermal device 17 is operating in the normal operation mode.

  Further, in the above-described blackout detection system 1, when the power supply from the commercial power supply 2 is stopped (when the blackout occurs), the power is not supplied from the commercial power supply 2 to the general load system 14 and the important load system 15. For example, when a power failure occurs due to a lightning strike or the like, power is not supplied from the commercial power source 2.

  In the event of a power failure, the control device 100 switches the switch 139 in the second distribution board 13 from the commercial power supply 2 side to the storage battery 3 side. When the switch 139 is switched, power is supplied from the storage battery 3 to the important load system 15 through the second distribution board 13. This power is supplied to the thermal equipment 17 and the plurality of important loads 152 through the important load system 15.

  At the time of a power failure, power is not supplied to the power failure detection device 16 through the general load system 14, so the voltage between the first power line 163 a and the second power line 163 b of the power failure detection device 16 decreases. For example, the voltage between the first power line 163a and the second power line 163b decreases from 100 V at the time of energization to 0 V at the time of power failure.

  In the blackout detection device 16, the voltage measuring unit 165 measures the voltage between the first power line 163a and the second power line 163b, and the blackout judging unit 166 judges the blackout based on the voltage measured by the voltage measuring unit 165. Do. When the voltage between the first power line 163a and the second power line 163b decreases, the power failure determining unit 166 determines that a power failure has occurred (no power is supplied from the commercial power supply 2) based on the voltage. In the power failure detection device 16, the communication unit 167 transmits the determination result determined by the power failure determination unit 166 to the thermal device 17.

  When the thermal device 17 receives the determination result of the power failure from the communication unit 167, the thermal device 17 operates in the suppression operation mode. More specifically, the thermal device control device 180 switches the operation of the thermal device 17 from the normal operation mode to the suppression operation mode. For example, the thermal device control device 180 suppresses the operation of the heat pump 50 of the thermal device 17.

  Thereafter, when the power is recovered from the power failure and returned to the normal state, power is supplied from the commercial power source 2. The power supplied from the commercial power source 2 is supplied to the general load system 14 through the first distribution board 12. Then, the power is supplied to the blackout detection device 16 and the plurality of general loads 142 through the general load system 14. When power is restored from the power failure, power is supplied to the power failure detection device 16, so that the voltage between the first power line 163a and the second power line 163b of the power failure detection device 16 increases. For example, the voltage between the first power line 163a and the second power line 163b increases from 0 V at the time of power failure to 100 V at the time of energization.

  When the voltage between the first power line 163a and the second power line 163b increases, the power failure judging unit does not have a power failure (the power is supplied from the commercial power supply 2) based on the voltage measured by the voltage measuring unit 165 166 makes a decision. Further, the communication unit 167 transmits the determination result determined by the power failure determination unit 166 to the thermal device 17.

  The thermal device 17 operates in the normal operation mode when it receives the determination result of energization from the communication unit 167. More specifically, the thermal device control device 180 switches the operation of the thermal device 17 from the suppression operation mode to the normal operation mode. For example, the thermal device control device 180 cancels the suppression operation of the heat pump 50 of the thermal device 17.

  The configuration and operation of the power failure detection system 1 according to the embodiment have been described above. As described above, the blackout detection system 1 according to the embodiment includes the commercial power supply 2 capable of supplying power through the general load system 14 and the important load system 15, and the storage battery 3 capable of supplying power through the important load system 15. , A power failure detection device 16 connected to the general load system 14, and a thermal device 17 connected to the important load system 15. In addition, the power failure detection system 1 includes the control device 100 that starts the power supply from the storage battery 3 when the power supply from the commercial power supply 2 is stopped. The power failure detection device 16 includes a plug 162 inserted into the outlet 141 of the general load system 14, and a first power line 163 a and a second power line 163 b connected to the plug 162. Further, the power failure detection device 16 measures a voltage between the first power line 163a and the second power line 163b, and a power failure judging unit 166 which judges a power failure based on the voltage measured by the voltage measuring unit 165. And a communication unit 167 that makes a judgment by the power failure judging unit 166 and transmits the judgment result to the thermal device 17.

  According to such a configuration, power is normally supplied from the commercial power source 2 to the power failure detection device 16 through the general load system 14, and power is supplied to the thermal equipment 17 through the important load system 15. If a power failure occurs (if the power supply from the commercial power supply is stopped), the power failure detection device 16 is not supplied with power through the general load system 14. Then, the voltage between the first power line 163a and the second power line 163b of the power failure detection device 16 decreases (for example, the voltage between the first power line 163a and the second power line 163b becomes 100V from 100V when the power is supplied and 0V when the power is lost). Lower). In the power failure detection device 16, the voltage measurement unit 165 measures the lowered voltage, the power failure determination unit 166 determines the power failure based on the measured voltage, and the communication unit 167 transmits the determination result to the thermal device 17. Thus, the thermal device 17 can appropriately determine whether or not a power failure has occurred.

  On the other hand, at the time of a power failure, power can be supplied from the storage battery 3 to the thermal equipment 17 through the important load system 15. Therefore, power can be supplied to the thermal device 17 in any of the normal time and the power failure time.

  In the power failure detection system 1 according to the embodiment, the thermal device 17 can operate in the normal operation mode and the suppression operation mode in which the power consumption is suppressed more than the normal operation mode, and the judgment result received from the communication unit 167 The normal operation mode and the suppression operation mode are switched based on that.

  According to such a configuration, the operation mode of the thermal device 17 can be appropriately switched based on the determination result determined by the power failure determination unit 166.

  As mentioned above, although one Example was described, a specific aspect is not limited to the said Example. In the following description, the same components as those in the above description will be assigned the same reference numerals and descriptions thereof will be omitted.

  In the above embodiment, the power failure detection device 16 is configured to include the plug 162 inserted into the outlet 141 of the general load system 14, but the present invention is not limited to this configuration. As shown in FIG. 6, a power failure detection device 18 according to another embodiment is disposed in the first distribution board 12. The voltage measurement unit 165 is connected to the first voltage line 125 a and the second voltage line 125 b. The voltage measuring unit 165 measures the voltage between the first voltage line 125a and the second voltage line 125b. The first voltage line 125 a and the second voltage line 125 b are connected to the branch breaker 122 and the outlet 141.

  The power failure detection device 18 according to this embodiment includes a voltage measurement unit 165 that measures a voltage between the first voltage line 125 a and the second voltage line 125 b connected to the outlet 141 of the general load system 14, and a voltage measurement unit A power failure judging unit 166 which judges a power failure based on the voltage measured by 165, and a communication unit 167 which is judged by the power failure judging unit 166 and transmits the judgment result to the thermal equipment 17. For example, power may be supplied to the voltage measurement unit 165, the power failure determination unit 166, and the communication unit 167 from a storage battery via a second distribution board (not shown).

  According to such a configuration, since power is not supplied to the general load system 14 when there is a power failure, the voltage between the first voltage line 125a and the second voltage line 125b decreases (for example, the first voltage line 125a and the second voltage line 125b). The voltage between the voltage lines 125b drops from 100 V during energization to 0 V during power failure). In the power failure detection device 18, the voltage measurement unit 165 measures the lowered voltage, the power failure determination unit 166 determines the power failure based on the measured voltage, and the communication unit 167 transmits the determination result to the thermal device 17. Thus, the thermal device 17 can appropriately determine whether or not a power failure has occurred.

  Further, the method of wireless communication by the communication unit 167 is not particularly limited. As shown in FIG. 7, the communication unit 167 may transmit the determination result to the thermal device 17 via the wireless router 173. The wireless router 173 is a device for relaying exchange of data between a plurality of different networks.

  According to such a configuration, since the wireless router 173 is interposed, the determination result can be transmitted reliably.

  Further, in the above embodiment, the voltage measuring unit 165 (an example of the measuring unit) measures the voltage between the first power line 163a and the second power line 163b, and based on the voltage measured by the voltage measuring unit 165, the blackout judging unit 166 was the structure which judges a power failure. Alternatively, the voltage measurement unit 165 measures the voltage between the first voltage line 125a and the second voltage line 125b, and the power failure determination unit 166 determines a power failure based on the voltage measured by the voltage measurement unit 165. The However, it is not limited to this configuration. In another embodiment, a frequency measurement unit (another example of the measurement unit) may be used instead of the voltage measurement unit 165. The measurement target may not be a voltage but an AC frequency. In this configuration, the frequency measuring unit (not shown) measures the frequency between the first power line 163a and the second power line 163b, and the blackout judging unit 166 judges the blackout based on the frequency measured by the frequency measuring unit. . Alternatively, the frequency measurement unit measures the frequency between the first voltage line 125a and the second voltage line 125b, and the power failure determination unit 166 determines a power failure based on the frequency measured by the frequency measurement unit.

  As mentioned above, although the specific example of this invention was described in detail, these are only an illustration and do not limit a claim. The art set forth in the claims includes various variations and modifications of the specific examples illustrated above. The technical elements described in the present specification or the drawings exhibit technical usefulness singly or in various combinations, and are not limited to the combinations described in the claims at the time of application. In addition, the techniques exemplified in the present specification or the drawings can simultaneously achieve a plurality of purposes, and achieving one of the purposes itself has technical utility.

1: blackout detection system 2: commercial power supply 3: storage battery 4: tank unit 6: heat pump unit 8: heat source unit 10: tank 12: first distribution board 13: second distribution board 14: general load system 15: important Load system 16: blackout detection device 17: thermal equipment 18: blackout detection device 20: tank water circulation passage 22: water circulation pump 24 for hot water supply: tap water introduction passage 24a: first introduction passage 24b: second introduction passage 30: mixing valve 32 : Tap water supply source 33: Heat source machine bypass passage 34: Bypass valve 36: First hot water supply passage 37: Hot water supply heating passage 38: Hot water supply valve 39: Second hot water supply passage 40: Bathtub pouring water passage 42: Hot water supply solenoid valve 50: Heat pump 51: Hot water supply heat exchanger 52: Refrigerant circulation path 53: Heating heat exchanger 54: Air heat exchanger 55: Heating device 56: Fan 60: Expansion valve 62: Compressor 70: Sister 72: heating outward path 73: first heating heating path 74: heating water circulation pump 75: low temperature heating circuit 76: high temperature heater 77: high temperature heating circuit 78: low temperature heater 79: reheating circuit 81: burner for hot water supply 82: heating burner 83: reheating heat valve 84: second heating heating path 91: bath water circulation path 96: heating return path 97: reheating heat exchanger 98: bath 99: bath water circulation pump 100: control device 121: main trunk Breaker 122: branch breaker 123: power wiring 124: branch wiring 125a: first voltage line 125b: second voltage line 126: power transmission wiring 127: charge wiring 128: discharge wiring 131: main breaker 132: branch breaker 134: branch wiring 135a : First voltage line 135 b: First voltage line 139: Switch 141: Outlet 141 a: First pole 141b: second pole 142: general load 150: gas heat source 151: outlet 152: important load 161: housing 162: plug 162a: first terminal 162b: second terminal 163a: first power line 163b: second power line 164: Outlet 164a: first pole 164b: second pole 165: voltage measurement unit 166: power failure determination unit 167: communication unit 168: battery 173: wireless router 180: control device for thermal equipment

Claims (4)

A blackout detection system in which power is supplied through a general load system and an important load system,
A commercial power supply capable of supplying power through the general load system and the important load system;
A storage battery capable of supplying power through the important load system;
A power failure detection device connected to the general load system;
A thermal device connected to the important load system;
And control means for starting power supply from the storage battery when power supply from the commercial power supply is stopped,
The blackout detection device
A plug which is plugged into the outlet of the general load system;
First and second power lines connected to the plug;
A measurement unit that measures a voltage or a frequency between the first power line and the second power line;
A power failure determination unit that determines a power failure based on the voltage or frequency measured by the measurement unit;
A power failure detection system, comprising: a communication unit that is judged by the power failure judging unit and transmits a judgment result to the thermal device. A blackout detection system in which power is supplied through a general load system and an important load system,
A commercial power supply capable of supplying power through the general load system and the important load system;
A storage battery capable of supplying power through the important load system;
A power failure detection device connected to the general load system;
A thermal device connected to the important load system;
And control means for starting power supply from the storage battery when power supply from the commercial power supply is stopped,
The blackout detection device
A measurement unit configured to measure a voltage or a frequency between a first voltage line and a second voltage line connected to an outlet of the general load system;
A determination unit that determines a power failure based on the voltage or frequency measured by the measurement unit;
A power failure detection system, comprising: a communication unit that makes a judgment by the judgment unit and transmits the judgment result to the thermal device.   The thermal device is operable in a normal operation mode and a suppression operation mode in which power consumption is suppressed from the normal operation mode, and the normal operation mode and the suppression operation mode are based on the determination result received from the communication unit. The power failure detection system according to claim 1 or 2, wherein The power failure detection system according to any one of claims 1 to 3, wherein the communication unit transmits the determination result via a wireless router.

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