JP2014105979A - Bathroom heater drier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bathroom heater drier which can possess a running cost display function in a relatively simple constitution even if the bathroom heater drier is the type that has a mist generation device.SOLUTION: The bathroom heater drier comprises: a heater drier main body 2 for heating and drying the inside of a bathroom; a mist generator 52 for generating mist and injecting it; and a heat source machine 36 for generating hot water and supplying it to the heater drier main body 2 and the mist generator 52. The bathroom heater drier also comprises: running cost calculation means 146 which calculates a running cost on the basis of a gas consumption amount of the heat source machine 36, a power consumption amount of the heater drier main body 2 and a tap-water consumption amount of the mist generator 52; and running cost display means 124 which displays the calculated running cost. The running cost calculation means 146 includes: non-stationary operation cost calculation means 152 which calculates a non-stationary operation cost; and a stationary operation cost calculation means 154 which calculates a stationary operation cost.

Description

  The present invention relates to a bathroom heating dryer used for heating, ventilating, or the like in a bathroom.

  In order to prevent a heat shock due to a temperature difference between a heated living room and a cold bathroom during bathing in winter, bathroom heating dryers for warming the bathroom are widely used in practice. In recent years, in this bathroom dryer / heater, in order to add a further function, what is equipped with the mist generator which acquires a sauna effect using a bathroom as a sauna space has prevailed. (For example, refer to Patent Document 1). This bathroom heating / drying machine includes a heating / drying machine main body attached to a ceiling of a bathroom, a heat source machine that generates hot water and supplies the heating / drying machine main body with hot water, and a mist generating device that generates mist. The dryer body has a heating heat exchanger for heating air using hot water, a circulation fan for circulating the air in the bathroom, and a ventilation fan for ventilating the air in the bathroom. The mist generator has a mist heat exchanger for heating water using hot water and a mist generating nozzle for generating mist. A general mist generating device includes a splash mist generating nozzle as a mist generating nozzle, and in an improved mist generating device, a splash mist generating nozzle and a micro mist generating nozzle (more finer than a splash mist generating nozzle). That generate mist).

  When the bathroom heater / dryer is operated in the splash mist mode (or the micro mist mode), the heat source unit, the heating / drying unit main body and the mist generating device are operated, the fuel gas is consumed in the heat source unit, and the electric power is supplied to the heating / drying unit main unit. Consumed, and tap water is consumed in the mist generator.

JP 2011-200431 A

  In recent years, as one of the environmentally friendly equipment, attention has been paid to equipment that displays the running cost so that it can be operated with energy conservation in mind, and the running cost is also displayed in the bathroom heater / dryer equipped with this mist sauna function. There is a demand for practical use of those with functions.

  However, this type of bathroom heater / dryer does not have a function of displaying the running cost and cannot display the running cost. If a running cost display function is to be added, a flow measuring device is required to measure the consumption of fuel gas consumed by the heat source unit, and the consumption of electric power consumed by the main body of the heating dryer. A power measuring device for measuring the volume is required, and a flow rate measuring device for measuring the consumption of tap water consumed by the mist generator is required, and the running cost is displayed on the bathroom heating dryer with mist sauna function. In order to provide the function, there are problems that the structure becomes complicated due to these measuring devices and the manufacturing cost becomes high.

  An object of the present invention is to provide a bathroom heater / dryer which can be provided with a running cost display function with a relatively simple configuration even if it is provided with a mist generator.

The bathroom heating dryer according to claim 1 of the present invention is a heating dryer body for heating and drying the inside of a bathroom, a mist generator for generating and discharging mist, and the heating dryer for generating hot water. A bathroom heating / drying machine comprising a main body and a heat source for supplying to the mist generating device,
Calculated by the running cost calculating means for calculating the running cost based on the gas consumption of the heat source unit, the power consumption of the heating dryer main body, and the tap water consumption of the mist generating device, and the running cost calculating unit And running cost display means for displaying the running cost.

In the bathroom heater / dryer according to claim 2 of the present invention, the running cost calculating means includes an unsteady operation cost calculating means for calculating an unsteady operation cost in an unsteady operation state in an initial stage of operation, and the unsteady operation cost. A steady operation cost calculating means for calculating a steady operation cost in a steady operation state after the operation state, and the mist generating device includes a splash mist generating nozzle for ejecting mist into the bathroom,
In the splash mist operation in which mist is ejected from the splash mist generating nozzle, the unsteady operation cost calculation means is based on the gas consumption amount of the heat source unit and the power consumption amount of the heating dryer main body in the unsteady operation state. And calculating the unsteady operation cost in the unsteady operation state, wherein the steady operation cost calculating means includes a gas consumption amount of the heat source unit in the steady operation state, a power consumption amount of the heating dryer body, and the mist generating device. The steady operation cost in the steady operation state is calculated based on the amount of tap water consumed, and the running cost calculating means calculates the unsteady operation cost and the steady operation cost calculating means calculated by the unsteady operation cost calculating means. Based on the steady operation cost calculated by And calculates the running costs.

Moreover, in the bathroom heater / dryer according to claim 3 of the present invention, the mist generating device includes a micro mist generating nozzle for ejecting micro mist,
In the micro mist operation in which mist is ejected from the micro mist generating nozzle, the unsteady operation cost calculation means includes the gas consumption amount of the heat source unit in the unsteady operation state, the power consumption amount of the heating dryer body, and the An unsteady operation cost in the unsteady operation state is calculated based on the tap water consumption of the mist generating device, and the steady operation cost calculation means is configured to calculate the gas consumption of the heat source unit in the steady operation state, the heating dryer Based on the power consumption of the main body and the tap water consumption of the mist generator, the steady operation cost in the steady operation state is calculated, and the running cost calculation means is the non-steady operation cost calculation means calculated by the non-steady operation cost calculation means. Based on the steady operation cost and the steady operation cost calculated by the steady operation cost calculation means, And calculates the running cost of Kuromisuto operating conditions.

In the bathroom heating / drying machine according to claim 4 of the present invention, the heating / drying machine main body includes a heating heat exchanger for heating the air in the bathroom by heat exchange with the hot water from the heat source machine. The mist generator includes a heat exchanger for mist that heats tap water by exchanging heat with hot water from the heat source machine, the supply side of the heat source machine, the heat exchanger for heating, and the mist The inflow side of the heat exchanger for heat is connected via a hot water return line, and the return side of the heat source unit and the outflow side of the heat exchanger for heating and the heat exchanger for mist are connected via a hot water return line. In relation to the inflow side of the heating heat exchanger, there is provided hot water going-out temperature detecting means for detecting the going-up temperature of hot water, and in relation to the outflow side of the heating heat exchanger. , Hot water return temperature detection to detect warm water return temperature Stage is provided, further, is provided with a steady state transition determining means for determining that a transition from said non-steady operation state to the steady operation state,
When a change in detected temperature difference per set time of the warm water return temperature detecting means and the warm water return detecting means becomes equal to or lower than a first predetermined temperature, the steady state transition determining means includes the heat source device, the heating dryer body, and the mist. It is determined that the generator has shifted from the unsteady operation state to the steady operation state.

In the bathroom heating / drying machine according to claim 5 of the present invention, the heating / drying machine main body includes a heating heat exchanger for heating the air in the bathroom by heat exchange with hot water from the heat source machine. The mist generator includes a heat exchanger for mist that heats tap water by exchanging heat with hot water from the heat source machine, the supply side of the heat source machine, the heat exchanger for heating, and the mist The inflow side of the heat exchanger for heat is connected via a hot water return line, and the return side of the heat source unit and the outflow side of the heat exchanger for heating and the heat exchanger for mist are connected via a hot water return line. In relation to the outflow side of the heating heat exchanger, a hot water return temperature detecting means for detecting a return temperature of hot water is provided, and a steady state determining means for determining the steady operation state Is provided,
When the temperature difference per set time of the detection temperature of the warm water return detection means is equal to or less than a second predetermined temperature, the steady state determination means is that the heat source unit, the heating dryer body and the mist generating device are in the steady operation state. It is determined that it is.

  Furthermore, in the bathroom heating dryer according to claim 6 of the present invention, the unsteady operation cost calculating means sets a fixed amount for the gas cost based on the gas consumption amount of the heat source unit, and the electric power of the heating dryer main body. The power cost based on the consumption is calculated based on the power consumption per unit time and the operation time in the unsteady operation state, and the steady operation cost calculation means is the gas cost based on the gas consumption of the heat source unit. Is calculated based on the gas consumption per unit time and the operation time in the steady operation state, and the power cost based on the power consumption of the heating dryer main body is calculated based on the power consumption per unit time and the steady operation state. Calculated based on the operation time, and the tap water cost based on the tap water consumption of the mist generating device and tap water consumption per unit time and the steady state And calculating on the basis of the operation time of the rolling conditions.

  According to the bathroom heating dryer according to claim 1 of the present invention, the running cost calculating means is based on the gas consumption of the heat source unit, the power consumption of the heating dryer body, and the tap water consumption of the mist generating device. Since the running cost is calculated, the running cost when the bathroom heater / dryer is operated as a mist sauna can be calculated as required. By displaying the calculated running cost on the running cost display means, the mist sauna can be calculated. You can easily know the running cost when you drive. When calculating the running cost, for example, use the rated gas consumption per unit time for heat source equipment, use the rated power consumption per unit time for the heating dryer body, and for the mist generator The running cost can be calculated relatively easily by using the rated tap water consumption per unit time.

  Moreover, according to the bathroom heating dryer according to claim 2 of the present invention, in the splash mist operation in which mist is ejected from the splash mist generating nozzle, the unsteady operation cost calculating means is the heat source device in the unsteady operation state. The unsteady operation cost in the unsteady operation state is calculated based on the gas consumption amount and the power consumption of the heating dryer main body, and the steady operation cost calculation means is the gas consumption amount of the heat source unit in the steady operation state, the heating dryer Based on the power consumption of the main unit and the tap water consumption of the mist generator, the steady operation cost in the steady operation state is calculated, and the running cost calculation means calculates the running cost based on the unsteady operation cost and the steady operation cost. Therefore, the running cost in splash mist operation can be calculated relatively easily and according to the driving conditions. It can be.

  Moreover, according to the bathroom heating dryer according to claim 3 of the present invention, in the micro mist operation in which the mist is ejected from the micro mist generating nozzle, the unsteady operation cost calculating means is the heat source device in the unsteady operation state. Based on the gas consumption, the power consumption of the heating dryer main body, and the tap water consumption of the mist generator, the non-steady operation cost in the non-steady operation state is calculated, and the steady operation cost calculation means is a heat source in the steady operation state. Based on the gas consumption of the machine, the power consumption of the main body of the heating dryer and the consumption of tap water of the mist generator, the steady operation cost in the steady operation state is calculated. Since the running cost is calculated based on the operating cost, the running cost in micro mist driving is relatively easy and It can be calculated with reference to the rolling state.

  According to the fourth aspect of the present invention, there is provided a bathroom heater / dryer according to the present invention, wherein the hot water going-out temperature detecting means provided on the inflow side of the heating heat exchanger of the heating / drying machine main body and the heating heat exchange are provided. When a change in detected temperature difference per set time (for example, about 10 minutes) with the hot water return temperature detecting means provided in association with the outflow side of the vessel becomes equal to or lower than a first predetermined temperature (for example, about 5 ° C.) Since the state transition determining means determines that the heat source device, the heating dryer main body, and the mist generator have shifted to the steady operation state, it can be reliably determined that the transition has been made to the steady operation state. This transition determination to the steady operation state is to determine that the transition to the steady operation state has already been made, and the transition from the unsteady operation state to the steady operation state is performed before the set time, and this transition The operation state is switched at a time before the set time from the determination, and the bathroom heating dryer is operated in an unsteady operation state in a period before this time point, and is operated in a steady operation state in a period after this time point. .

  Moreover, according to the bathroom heating dryer according to claim 5 of the present invention, the set time of the detection temperature of the hot water return temperature detection means provided in relation to the outflow side of the heating heat exchanger of the heating dryer main body. When the temperature difference per 10 seconds (for example, about 10 seconds) becomes equal to or less than the second predetermined temperature (for example, about 2 ° C.), the steady state determination means sets the operation state of the heat source unit, the heating dryer body, and the mist generator to the steady operation state. From this point in time, the heat source unit, the heating dryer body, and the mist generator are operated in a stable operation state.

  According to the bathroom heating dryer according to claim 6 of the present invention, the gas cost based on the gas consumption amount of the heat source unit is set to a fixed amount in the unsteady operation state, and the power consumption amount of the heating drying unit main body is set. Since the power cost based on is calculated based on the power consumption per unit time and the operation time in the unsteady operation state, the unsteady operation cost can be easily calculated. Further, in the steady operation state, the gas cost based on the gas consumption amount of the heat source unit is calculated based on the gas consumption amount per unit time and the operation time in the steady operation state, and is based on the power consumption amount of the heating dryer main body. The power cost is calculated based on the power consumption per unit time and the operation time in the steady operation state, and the tap water cost based on the tap water consumption of the mist generator is calculated based on the tap water consumption per unit time and the steady state. Since the calculation is performed based on the operation time in the operation state, the steady operation cost can be easily calculated.

Sectional drawing which shows one Embodiment of the bathroom heating dryer according to this invention. The figure which shows the warm water control system in the bathroom heating dryer of FIG. The front view which shows the operation remote control which carries out operation control of the bathroom heating dryer of FIG. The block diagram which shows the control system which carries out operation control of the bathroom heating dryer of FIG. The figure which shows the relationship between the operating time at the time of splash mist driving | running | working a bathroom heating dryer, the consumption of gas / tap water / electric power, and the temperature difference of going back and forth. The flowchart which shows the flow of calculation of the running cost when carrying out the splash mist driving | operation of the bathroom heating dryer. The figure which shows the relationship between the operating time when a bathroom heating dryer performs micro mist operation, the consumption of gas / tap water / electric power, and the temperature difference of going back and forth. The flowchart which shows the flow of calculation of the running cost when the bathroom heating dryer performs the splash mist operation by other control.

  Hereinafter, with reference to an accompanying drawing, one embodiment of the bathroom heating dryer according to the present invention is described. In FIG. 1, the illustrated bathroom heater / dryer includes a heater / dryer body 2, and the heater / dryer body 2 is attached to a ceiling of a bathroom, for example. A circulation flow path 4 and a ventilation flow path 6 are provided in the heating dryer main body 2. The circulation channel 4 is provided in the heating dryer main body 2 from the right part to the middle part in FIG. 1. The circulation channel 4 has a heating heat exchanger 8 for heating air and air in the bathroom. And a circulation fan 10 for circulating the air. The heating heat exchanger 8 has a first heat exchanging portion 12 extending substantially horizontally and a second heat exchanging portion 14 extending substantially vertically, and the first heat exchanging portion 12 is arranged below the circulation fan 10. The second heat exchange unit 14 is disposed inside the circulation fan 10. The first and second heat exchange units 12 and 14 have a plurality of hollow pipes, and hot water as a heating medium flows through these hollow pipes as described later.

  On the lower surface of the main body 2 of the heating dryer, there are provided an inlet 18 for inhaling air in the bathroom and an outlet 20 for blowing air into the bathroom. The upstream end of the circulation channel 4 is the inlet. 18 and a downstream end thereof is in communication with the outlet 20. In this embodiment, the downstream side portion of the circulation flow path 4 is vertically divided by a partition plate 22, an upper flow path portion 24 is defined above the partition plate 22, and a lower flow path portion 26 is defined below the partition plate 22. . When the circulation fan 10 rotates in the direction indicated by the arrow 16, the air in the bathroom is sucked through the suction port 20, flows through the circulation channel 4 as indicated by the solid line arrow, and a part of the sucked air is the upper channel part. 24, and the remainder flows through the lower flow path portion 26, and after these air merges, the air is blown out into the bathroom from the outlet 22 and thus the air in the bathroom is circulated in the circulation flow path 4 (upper flow path section 24 and The air that circulates through the lower flow path portion 26) and flows through the circulation flow path 4 in this way is heat-exchanged with warm water flowing through the heating heat exchanger 8 and heated.

  A louver 28 is provided at the outlet 20 to change the direction of the air blown out. The louver 28 is swingably supported around the swing shaft 30 and is swung by a louver motor 32 (see FIG. 4). The direction of the air blown out from the outlet 20 is adjusted by the louver 28.

  Moreover, the ventilation flow path 6 is provided in the heating-dryer main body 2 from the intermediate part of FIG. An exhaust port (not shown) is provided on the side surface (left side surface in FIG. 1) of the heating / drying machine main body 2, the upstream end of the ventilation channel 6 is communicated with the circulation channel 4, and the downstream end is exhausted. It is communicated to the mouth. A ventilation fan 34 is provided in the ventilation channel 6, and when the ventilation fan 34 rotates in a predetermined direction, the air in the bathroom is sucked through the suction port 18 and passes through a part of the circulation channel 4. 6 flows as shown by a broken line arrow, and is discharged to the outdoors from a discharge port (not shown).

  Referring also to FIG. 2, a heat source unit 36 is provided in association with the heating dryer body 2, and hot water as a heating medium generated by the heat source unit 36 is supplied to the heating dryer body 2. The heat source device 36 is composed of, for example, a gas hot water supply device, and includes a combustion burner 38 for combusting fuel gas to generate hot water and a feed pump 40 for supplying hot water. The supply side connection portion 42 of the heat source unit 46 is connected to the inflow side of the heating heat exchanger 8 via the hot water going-out line 44, and the return side connection portion 46 is connected to the heating heat exchange via the hot water return line 48. The hot water supply line 46 is connected to the outflow side of the vessel 8 and is provided with a thermal valve 50 for opening and closing the line 46. With this configuration, the hot water from the heat source device 36 is circulated through the hot water going-out line 44, the heating heat exchanger 8, and the hot water return line 48.

  The bathroom heater / dryer is further provided with a mist generating device 52 for obtaining a mist sauna effect. The mist generating device 52 includes a mist heat exchanger 54 (see FIG. 2), a splash mist generating nozzle 56, and a micro mist generating nozzle 58. The heat exchanger 54 for mist warms tap water to warm water, and the inflow side of the hot water system is connected to the warm water flow line 44 (specifically, upstream of the thermal valve 50 via the warm water flow line 60 for mist). And the outflow side of the hot water system is connected to the hot water return line 48 via the hot water return line 62 for mist, and the water proportional valve 61 for controlling the flow rate of hot water is arranged in the hot water return line 60 for mist. It is installed.

  The inflow side of the water system of the mist heat exchanger 54 is connected to a water pipe (not shown) via a water supply line 64, and the outflow side of the water system is connected to a drainage part (not shown) via a drainage line 66. Connected). The water supply line 64 is provided with a strainer 65 for removing impurities (such as rust) contained in tap water and a water supply electromagnetic valve 67 for opening and closing the water supply line 64. The drain line 66 is provided with a drain electromagnetic valve 69 for opening and closing the drain line 66.

  With this configuration, part of the hot water from the hot water return line 44 flows to the hot water return line 48 via the mist hot water return line 60, the mist heat exchanger 54 and the mist hot water return line 62. The tap water from the water pipe flows through the water supply line 64, the mist heat exchanger 54, and the drain line 66, and in the mist heat exchanger 54, the water of the water system is added by heat exchange with the hot water of the hot water system. It becomes warm and becomes warm water.

  The splash mist generating nozzle 56 is a nozzle that sprays splash mist (a mist having a particle size of about 50 to 100 μm), and is disposed in the vicinity of the outlet 20 of the heating dryer body 2 (see FIGS. 1 and 2). . The splash mist generating nozzle 56 is connected to a splash mist line 68 branched from a drainage line 66 (a part upstream of the part where the drainage electromagnetic valve 69 is disposed), and hot water flowing through the splash mistline 68 is splashed with the splash mist generating nozzle 56. Sprayed into the bathroom. The splash mist line 68 is provided with a splash mist electromagnetic valve 70 for opening and closing the line 68. When the water supply electromagnetic valve 67 and the splash mist electromagnetic valve 70 are open, and the drain electromagnetic valve 69 is closed. In addition, the tap water from the water supply line 64 is heated by the mist heat exchanger 54 and then fed to the splash mist generating nozzle 56.

  The micro mist generating nozzle 58 is a nozzle that sprays micro mist (a mist smaller than a splash mist and having a particle diameter of about 5 to 20 μm), and is provided in the circulation flow path 4 of the heating dryer body 2. It arrange | positions in the upper flow path part 24 (refer FIG. 1). The micro mist generating nozzle 58 is connected to a micro mist line 72 that branches from a drainage line 66 (specifically, a portion upstream of the branch portion of the splash mist line 68), and hot water that flows through the micro mist line 72 flows. Sprayed from the micro mist generating nozzle 58 into the upper flow path portion 24 of the circulation flow path 4. The micro mist line 72 is provided with a micro mist electromagnetic valve 74 that opens and closes the line 72. When the water supply electromagnetic valve 67 and the micro mist electromagnetic valve 74 are open and the drain electromagnetic valve 69 is closed. In addition, tap water from the water supply line 64 is heated by the heat exchanger 54 for mist and then fed to the micro mist generating nozzle 58.

  In this embodiment, the micro mist generating nozzle 58 is further configured as follows. A filter 76 is disposed on the downstream side of the micro mist generating nozzle 58 in the upper flow path portion 24 of the circulation flow path 4 when viewed in the air flow direction. The filter 76 cuts mist having a large particle size from the mist sprayed from the micro mist generating nozzle 58, and only the micro mist having a small particle size passes through the filter 76 and is sprayed into the bathroom from the outlet 20. .

  Further, the partition plate 22 is provided with a water collection portion 78, a communication passage 80 extending downward is provided in the water collection portion 78, and an electromagnetic opening / closing valve 81 is provided in the communication passage 80. An evaporation heat exchanger 82 is disposed below the communication path 80 in the lower flow path portion 26 of the circulation flow path 4. The evaporating heat exchanger 82 is disposed in the mist hot water return line 62, and the return hot water after flowing through the mist heat exchanger 54 flows to the hot water return line 48 through the evaporating heat exchanger 82. With this configuration, the hot water (or water) flowing down from the filter 76 is collected in the water collecting section 78, flows through the communication passage 80, and flows down to the evaporating heat exchanger 82, and evaporating heat exchanger. The mist evaporated by the heat from the hot water flowing through 82 flows into the bathroom from the outlet 20 together with the heated air flowing through the lower flow path portion 26. In this embodiment, the evaporation heat exchanger 82 is provided in order to use the warm water (or water) flowing down from the filter 76. However, the evaporation heat exchanger 82 is omitted and the warm water (or water) is omitted. ) May be drained.

  This bathroom heater / dryer is provided with hot water going-out temperature detecting means 84, hot water return temperature detecting means 86, mist hot water temperature detecting means 88, and bathroom temperature detecting means 90 in order to detect various temperatures. The warm water going temperature detecting means 84 is for detecting the temperature of the warm water supplied from the heat source unit 36 to the heating heat exchanger 8 (going temperature), and in the warm water going line 44, the mist hot water going line 60. It is arrange | positioned upstream from the connection site | part. The hot water going-out temperature detecting means 84 may be arranged on the downstream side (upstream side of the thermal valve 50) of the hot water going-out line 44 from the connection portion with the mist hot water going-out line 60. The warm water return temperature detection means 86 is for detecting the temperature (return temperature) of warm water returning from the heating heat exchanger 8 to the heat source unit 36, and the warm water return line 62 in the warm water return line 48. It is arrange | positioned downstream from the connection site | part. The hot water return temperature detection means 86 may be arranged upstream of the connection portion with the mist hot water return line 62 in the hot water return line 48.

The mist hot water temperature detecting means 88 is for detecting the temperature of the hot water supplied to the splash mist generating nozzle 56 and the micro mist generating nozzle 58, and is located downstream of the mist heat exchanger 54 (this form). Then, it is arrange | positioned by the part between the connection parts of the heat exchanger 54 for mist and the micro mist line 72). The bathroom temperature detection means 86 is for detecting the temperature in the bathroom, and is disposed in the vicinity of the lower surface of the heating dryer body 2. Detection signals from the hot water going-out temperature detection means 84, the hot water return temperature detection means 86, the mist hot water temperature detection means 88 and the bathroom temperature detection means 90 are sent to a controller 92 which will be described later. The operation remote controller 93 shown in FIG. The operation remote controller 93 includes operation mode setting means 94 for setting the operation mode of the bathroom heating dryer. In this embodiment, the operation mode setting means 94 includes a heating switch 96 for setting the heating operation mode, and a drying operation. A drying switch 98 for setting a mode, a ventilation switch 100 for setting a ventilation operation mode, a cool air switch 102 for setting a cool air operation mode, a splash switch 104 for setting a splash mist operation mode, and a micro switch 106 for setting a micro mist operation are provided. ing.

  The operation remote controller 93 further sets a stop switch 108 for stopping the operation of the bathroom heating dryer and an angular position of the louver 28 (that is, sets an air direction of air blown from the louver 28), an operation time. A time setting switch 112 for setting the temperature and a temperature setting switch 114 for setting the bathroom temperature are provided. The time setting switch 112 includes an up switch 116 for increasing the set operation time by a predetermined time (for example, 1 minute) and a down switch 118 for decreasing the set operation time by a predetermined time (for example, 1 minute). The temperature setting switch 78 includes an up switch 120 for increasing the set bathroom temperature by a predetermined temperature (for example, 1 ° C.) and a down switch for decreasing the set bathroom temperature by a predetermined temperature (for example, 1 ° C.). And switch 122.

  The operation remote controller 93 further includes a display unit 124 and a transmission / reception unit 126 (see FIG. 4). The display means 124 is calculated by the operation mode set by the operation mode setting means 94, the set operation time set by the time setting switch 112, the set bathroom temperature set by the temperature setting switch 114, and further calculated as described later. The running cost and the like are displayed, and the transmission / reception means 126 displays an operation mode signal set by the operation mode setting means 94, a set time signal set by the time setting switch 112, a set temperature signal set by the temperature setting switch 114, A set wind direction signal set by the wind direction switch 110, a stop signal set by the stop switch 108, and the like are transmitted to the controller 92 (see FIG. 4), and a running cost signal (described later) is received from the controller 92.

  In this embodiment, the bathroom heating dryer is controlled by the controller 92 shown in FIG. The illustrated controller 92 includes, for example, a control unit 128 constituted by a microprocessor, a temperature difference calculation unit 130, a temperature difference change calculation unit 132, a temperature rise determination unit 134, a steady state transition determination unit 136, an abnormal signal generation unit 138, a time count. Means 140, time calculation means 142, and transmission / reception means 144 are provided. The control means 128 controls the heat source device 36, the heating / drying machine main body 2 and the mist generating device 52 as described later, and the temperature difference calculation means 130 controls the temperature of the outgoing hot water (inflow side hot water) of the heating heat exchanger 8 ( That is, a temperature difference between the temperature detected by the warm water going temperature detection means 84) and the temperature of the return warm water (outflow side hot water) (that is, the detection temperature of the warm water return temperature detection means 86) is calculated as described later, and the temperature difference change The calculating means 132 calculates a change in temperature difference between the inflow side and the outflow side of the heating heat exchanger 8 as described later, and the temperature rise determination means 134 is set to a set time (for example, about 5 to 20 seconds). As an example, if the temperature difference (set by the temperature difference calculation means 130) per 10 seconds (set to 10 seconds) is equal to or higher than the set temperature (for example, set to around 5 ° C.), the hot water is heated as required. It is determined that the The steady state transition determining means 136 determines the transition to the steady operation state using a temperature difference change per set time (for example, set to about 7 to 12 minutes, for example, set to 10 minutes). When the temperature difference change is equal to or lower than a first predetermined temperature (for example, set to about 3 to 7 ° C. and set to 5 ° C. as an example), it is determined that the bathroom heater / dryer has shifted to a steady operation state. The abnormal signal generating means 138 generates an abnormal signal in the case described later, the time measuring means 140 measures the time, the time calculating means 142 calculates the time as described later, and the transmitting / receiving means 144 is operated by the operation remote controller 93. The transmission / reception means 126 transmits / receives various signals. In this embodiment, the determination of the temperature rise of the hot water supplied from the heat source unit 36 is performed together with the determination of the transition to the steady operation state. However, the temperature rise determination of the hot water may be omitted. The difference calculation means 130 and the temperature rise determination means 134 can be omitted.

  The controller 92 includes a running cost calculation unit 146, a first memory 148, and a second memory 150. The running cost calculation unit 146 includes an unsteady operation cost calculation unit 152 and a steady operation cost calculation unit 154. . The unsteady operation cost calculating means 152 calculates the unsteady operation cost in the unsteady operation state as follows, and the steady operation cost calculation means 154 calculates the steady operation cost in the steady operation state as follows. The running cost calculation means 146 calculates the running cost based on the non-steady operation cost and the steady operation cost.

  The first memory 148 stores information such as unsteady operation time, steady operation time, unsteady operation cost, steady operation cost, and running cost, and some or all of the information is stored for each operation of the bathroom heating dryer. Updated. In addition, the second memory 150 includes gas consumption per unit time, power consumption per unit time, tap water consumption per unit time, gas unit price, electricity unit price, tap water unit price, and unsteady operation. The gas consumption fee at the time is registered.

  An outline of the splash mist operation and the micro mist operation in this bathroom heater / dryer is as follows. Referring mainly to FIG. 1 and FIG. 2, in the splash mist operation, the heating / drying machine main body 2, the heat source machine 36 and the mist generating device 52 are operated. That is, the heat source device 36 (that is, the combustion burner 38 and the feed pump 40) is operated, the heat valve 50 of the heating dryer body 2 is operated, and the proportional valve 61 and the water supply valve 67 of the mist generating device 52 are further operated. Actuated. Accordingly, warm water from the heat source device 36 (for example, warm water of about 80 ° C.) flows through the warm water return line 44, the heating heat exchanger 8 of the heating dryer body 2 and the warm water return line 48, and also flows through the warm water return line 44. Part of the flowing warm water flows to the warm water return line 48 through the warm water return line 60 for mist, the heat exchanger 54 for mist, the heat exchanger 82 for evaporation, and the warm water return line 62 for mist, and is generated by the heat source unit 36. Hot water is circulated through the heating dryer body 2 and the mist generator 52.

  When the temperature detected by the warm water going temperature detection means 84 reaches a predetermined warm water temperature (for example, 60 ° C.), the circulation fan 10 of the heating / drying machine main body 2 is activated, and the circulation fan 10 causes the air in the bathroom to be circulated through the circulation channel 4. The air heated by heat exchange with the hot water in the heating heat exchanger 8 is blown out from the outlet 20 and the interior of the bathroom is warmed.

  When the inside of the bathroom is thus warmed and the temperature detected by the bathroom temperature detecting means 90 becomes equal to or higher than a predetermined bathroom temperature (for example, 25 ° C.), the water supply electromagnetic valve 67 and the splash mist electromagnetic valve 70 of the mist generating device 52 are activated. Then, the tap water supplied through the water supply line 64 is heated by exchanging heat with warm water in the mist heat exchanger 54, and the warmed warm water is drained by the drain line 66 and the splash mist line 68. Then, the water is supplied to the splash mist generating nozzle 56 and is ejected from the splash generating nozzle 56 into the bathroom, and a sauna effect is obtained by the splash mist using the bathroom as a sauna space.

  In the micro mist operation, the heating / drying machine main body 2, the heat source unit 36, and the mist generating device 52 are operated in substantially the same manner as described above. The heat source machine 36 and the heating / drying machine main body 2 are operated in the same manner as described above, and further, the micro mist electromagnetic valve 74, the proportional valve 61, and the water supply electromagnetic valve 67 of the mist generating device 52 are operated. Accordingly, hot water (for example, hot water of about 80 ° C.) from the heat source device 36 is circulated through the heating dryer main body 2 and the mist generating device 52 in the same manner as described above. Further, tap water from the water supply line 64 is supplied to the micro mist generating nozzle 58 through the mist heat exchanger 54, the drain line 66 and the micro mist line 72, and the micro mist generating nozzle 58 supplies the circulation flow path 4 (upper flow path). Sprayed into the part 24). At this time, since the circulation fan 10 is not operated, the micro mist ejected from the micro mist generating nozzle 58 does not flow through the filter 76 but flows through the filter 7 and the partition plate 22 and is collected in the water collecting section 78. It is done.

  When the temperature detected by the warm water going temperature detection means 84 reaches a predetermined warm water temperature (for example, 60 ° C.), the circulation fan 10 of the heating / drying machine main body 2 is activated, and the circulation fan 10 causes the air in the bathroom to be circulated through the circulation channel 4. The micro mist from the micro mist generating nozzle 58 is contained in the air that is circulated through the circulation flow path 4 (upper flow path portion 24), and the heated air containing the micro mist blows out from the blow-out port 20. Further, the electromagnetic on-off valve 81 is activated to be in an open state, and the water collected in the water collecting section 78 flows downward to the surface of the evaporating heat exchanger 82 through the communication passage 80, and this evaporating heat exchanger 82 is A sauna effect is obtained by micromist using the bathroom as a sauna space by being evaporated in the flow and included in the air flowing through the circulation channel 4 (lower channel part 26) and blown out from the outlet 20. The large mist sprayed from the micro mist generating nozzle 58 flows down the surface of the filter 76 and is collected in the water collecting section 78 without passing through the filter 76.

  In this bathroom heater / dryer, the running cost in the splash mist operation (or micro mist operation) is calculated as follows. In the splash mist operation (or micro mist operation), as described above, the heat source device 36, the heating / drying device main body 2, and the mist generating device 52 are operated, and the running cost calculation means 146 is configured to calculate the gas consumption amount of the heat source device 36, The running cost is calculated based on the power consumption of the heating dryer body 2 and the tap water consumption of the mist generator 52.

  In the splash mist operation of the bathroom heating dryer, the relationship between the time from the start of operation and the gas consumption, power consumption and tap water consumption is as shown in FIG. The gas consumption fluctuates greatly until the temperature difference between the temperature of the inflow-side hot water and the temperature of the return hot water (outflow-side hot water) stabilizes, and when this temperature difference stabilizes, the gas consumption does not fluctuate and remains almost constant. It becomes. For this reason, the bathroom heater / dryer is operated in an unsteady operation state until the temperature difference between the outgoing hot water temperature (inflow side temperature) and the return hot water temperature (outflow side temperature) of the heating heat exchanger 54 is stabilized. When the temperature difference is stabilized, the running cost is calculated assuming that the bathroom heater / dryer is operated in a steady operation state.

  In this embodiment, the temperature difference between the temperature of the return hot water of the heating heat exchanger 8 (detection temperature of the warm water going-out temperature detection means 84) and the temperature of the return hot water (detection temperature of the warm water return temperature detection means 86) is changed. The ratio, that is, the change degree of the temperature difference per set time (for example, 10 minutes) as the measurement time is used, and this change in temperature difference (degree of change in temperature difference) is equal to or lower than the first predetermined temperature (eg, 5 ° C.). Then, the degree of heat exchange between the water and the hot water in the heating heat exchanger 8 is low, and the steady state transition determination means 136 determines that the transition to the steady operation state has already been performed. Calculate the running cost as described later by processing that the bathroom heater / dryer has switched from the unsteady operation state to the steady operation state at the time (T1) before the measurement time (10 minutes before in this embodiment) from (T2). To do.

  In relation to this, the unsteady operation cost calculation means 152 calculates the unsteady operation cost in the unsteady operation state, and the steady operation cost calculation means 154 calculates the steady operation cost in the steady operation state. In this embodiment, in order to calculate the unsteady operation cost relatively easily in accordance with the operation state of the bathroom heating dryer, the gas consumption fee (G1) in the heat source unit 36 is uniformly a fixed amount (for example, 6 Yen) (the gas consumption in the unsteady operation state is small compared to the gas consumption in the steady operation state, the operation time in the unsteady operation state is substantially constant, and the gas consumption amount at this time is also substantially constant. Therefore, the gas consumption amount in the unsteady operation state can be made constant and the gas consumption fee can be made uniform), and the electric power consumption fee (D1) of the heating dryer body 2 is The rated power consumption per unit time, that is, the rated power consumption per unit time of the circulation fan 10 and the louver motor 32, is used. The power consumption charge (D1) can be calculated based on the unit price of charge, and is calculated by D1 = (rated power consumption per unit time) X (operating time in an unsteady operation state) X (power charge unit price) Is done. In this splash mist operation, the splash mist is hardly ejected from the splash mist generating nozzle 56 until the temperature in the bathroom reaches a set bathroom temperature (for example, 25 ° C.). The tap water consumption fee (S1) in the mist generating device 52 may not be generated.

  In addition, in order to calculate the steady operation cost relatively easily in accordance with the operation status of the bathroom heater / dryer, the gas consumption rate (G2) is stable because the gas consumption is stable. That is, the rated gas consumption per unit time of the combustion burner 45) can be used to calculate based on the rated gas consumption, the operating time in the steady operation state, and the unit price of the gas charge. This gas consumption charge (G2) Is calculated by G2 = (rated gas consumption per unit time) X (operation time in a steady operation state) X (gas charge unit price). For the power consumption fee (D2), the rated power consumption per unit time of the heating / drying machine body 2, that is, the rated power consumption per unit time of the circulation fan 10 and the louver motor 32 is used. It can be calculated on the basis of the consumption amount, the operation time in the steady operation state, and the unit price of electricity, and this power consumption fee (D2) is D2 = (rated power consumption per unit time) X (operation in the steady operation state) Time) X (electric power unit price) is calculated. Furthermore, since the splash mist is ejected from the splash mist generating nozzle 56 of the mist generating device 52 in the steady operation state, the rated water consumption per unit time of the mist generating device 52 is used for the tap water rate (S2). Can be calculated based on this rated tap water consumption, operating time in steady operation and unit price of tap water, and this tap water consumption rate (S2) is S2 = (rated water per unit time) It is calculated by water consumption) X (operation time in a steady operation state) X (tap water charge unit price).

  Next, mainly with reference to FIG. 2, FIG. 4 and FIG. 6, the flow of the running cost calculation in the splash mist operation of the bathroom heating dryer described above will be described. When the splash mist switch 104 of the operation remote controller 93 is turned on (step S1), the unsteady operation of the bathroom heater / dryer is started (step S2). In this unsteady operation, the heat source device 36 is activated to generate hot water (step S3), the heating dryer body 2 is activated (step S4), and the mist generator 52 is activated (step S5). Accordingly, the hot water generated by the heat source device 36 is circulated through the heating heat exchanger 8 of the heating / drying machine main body 2 and also circulated through the mist heat exchanger 54 and the evaporation heat exchanger 82 of the mist generator 52. Is done. Further, the circulation fan 10 is activated to circulate the air in the bathroom through the circulation channel 4, and the air is heated by the heating heat exchanger 8 during the circulation.

  When the unsteady operation is performed in this way, the time measuring means 104 is activated to start time measurement (step S6). Further, the warm water going-out temperature detection means 84 detects the temperature of the inflow side hot water of the heating heat exchanger 8 (step S7), and the hot water return hot water detection means 86 detects the temperature of the outflow side hot water of the heating heat exchanger 8. (Step S8), detection signals from the warm water going-out temperature detecting means 84 and the hot water return temperature detecting means 86 are sent to the controller 92.

  When the detection signal is sent in this way, the temperature difference calculation means 130 of the controller 92 causes the warm water return temperature of the heating heat exchanger 8 (detected temperature of the warm water return temperature detection means 84) and the warm water return temperature (warm water return temperature). The temperature difference (detected temperature of the detecting means 86) is calculated, and when this temperature difference (the calculated value of the temperature difference calculating means 130) does not reach the set temperature (for example, 5 ° C.) or more, the process proceeds from step S9 to step S10. In step S10, it is determined whether the temperature rise confirmation time (for example, set to about 20 minutes) has elapsed since the start of the unsteady operation. If the temperature rise confirmation time has not elapsed, the process returns to step S9. After a lapse of time, heat exchange with air in the heat exchanger 8 for heating is insufficient and the temperature rise of the air is small (in other words, heat exchange in the heat exchanger 8 for heating is insufficient and the temperature of the warm water is low). The process proceeds to step S11 assuming that some abnormality has occurred in the generation of hot water.

  In step S11, the abnormal signal generation unit 102 of the controller 92 generates an abnormal signal, and the control unit 128 stops the calculation of the running cost based on the abnormal signal (step S12), and further displays an error display for calculating the running cost. (Step S13), the calculation of the running cost is completed in this way.

  In step S9, when the temperature difference between the warm water return temperature and the warm water return temperature of the heating heat exchanger 8 reaches the set temperature (5 ° C. or more), the temperature rise determination means 134 normally generates warm water in the heat source unit 36. Then, it is determined that heat exchange is normally performed in the heating heat exchanger 8. Then, the process proceeds from step S9 to step S14. In step S14, the temperature difference change calculating means 132 calculates a temperature difference change between the warm water going temperature and the warm water return temperature at the measurement time t (for example, 10 minutes), and this temperature difference change is calculated as the first predetermined temperature ( For example, if it exceeds 5 ° C., the process proceeds from step S14 to step S15. In step S15, it is determined whether or not a transition determination time (for example, set to about 20 minutes) has elapsed after the temperature rise determination means 134 has determined that heat has been exchanged normally, and this transition determination time has elapsed. If not, the process returns to step S14, and steps S14 and S15 are repeatedly performed until the transition determination time elapses. However, when the transition determination time elapses, some abnormality occurs in the hot water circulation system and the heat exchanger for heating is used. If the heat exchange with the air is insufficient at 8 and the temperature rise of the air is small, the process proceeds to step S11. Thereafter, the above-described steps S11 to S13 are performed, and the calculation of the running cost is terminated halfway, and an error display is displayed. Is done.

  In step S14, when the change in temperature difference between the warm water return temperature and the warm water return temperature of the heating heat exchanger 8 at the measurement time t (10 minutes) becomes 5 ° C. or less, the steady state transition determination means 136 includes the heat source device 36, the heating It is determined that the operation of the dryer main body 2 and the mist generating device 52 is normally performed, the temperature in the bathroom rises as required, and has already shifted to the steady operation state (step S16). The determination of transition to the steady operation state is made before the determination time T2 before the measurement time t (that is, at the start of the measurement time in this determination), after the unsteady operation of the bathroom heater / dryer is completed, and then switched to the steady operation state. Indicates that it has been changed.

  In relation to this determination result, the time calculation means 142 of the controller 92 calculates the unsteady operation time T1 (T1 = T2-t) that has been operated in the unsteady state from the start of operation (step S17). The operation time T1 is registered in the first memory 148 of the controller 92 (step S18), and accordingly, the steady operation start time is registered (step S19).

  Thereafter, when the stop switch 108 of the operation remote controller 93 is turned on in the steady operation state of the bathroom heating dryer, the process proceeds from step S20 to step S21, and the steady operation of the bathroom heating dryer ends (the heat source machine 36, the heating dryer). The main body 2 and the mist generator 52 are deactivated). Thus, the time calculation unit 142 of the controller 92 calculates the operation time in the steady operation state based on the operation time until the end of the steady operation and the operation time of the non-steady operation timed by the time measuring unit 140 (step S22). The operation time in the steady operation state is registered in the first memory 148 (step S23).

  When the operation of the bathroom heater / dryer is thus completed, the non-stationary operation cost calculation means 152 performs the gas consumption fee (G1) based on the gas consumption amount of the heat source unit 36 in the unsteady operation state and the electric power of the heater / dryer main body 2. An unsteady operation cost (H1: H1 = G1 + D1) is calculated based on the power consumption fee (G1) based on the consumption, and the calculated unsteady operation cost is registered in the first memory 148 (step S24). The cost calculating means 154 includes a gas consumption fee (G2) based on the gas consumption amount of the heat source unit 36 in a steady operation state, a power consumption fee (G2) based on the power consumption amount of the heating dryer body 2, and the mist generator 52. The steady operation cost (H2: H2 = G2 + D2 + S2) is calculated based on the tap water consumption fee (G3) based on the tap water consumption, and the calculated steady operation cost is It is registered in the first memory 148 (step S25). The running cost calculation means 146 is based on the non-steady operation cost (H1) by the non-steady operation cost calculation means 152 and the steady operation cost (H2) by the steady operation cost calculation means 154, that is, the running cost (R: R = H1 + H2) is calculated, and the calculated running cost is registered in the first memory 148 (step S26). This running cost information is transmitted from the controller 92 to the operation remote controller 93 and displayed on the display means 124 ( Step S27).

  Next, in the micro mist operation of the bathroom heater / dryer, the relationship between the time from the start of operation and the gas consumption, power consumption and tap water consumption is as shown in FIG. Similarly, the gas consumption greatly fluctuates until the temperature difference between the temperature of the outgoing hot water (inflow side hot water) of the heating heat exchanger 8 and the temperature of the return hot water (outflow side hot water) becomes stable. When the gas becomes stable, the gas consumption does not fluctuate substantially and becomes almost constant. Therefore, as in the case of the splash mist operation, the bathroom heater / dryer is used until the temperature difference between the warm water going-out temperature (inflow side temperature) and the warm water return temperature (outflow side temperature) of the heating heat exchanger 54 is stabilized. Is operated in an unsteady operation state, and after the temperature difference is stabilized, the bathroom heater / dryer is operated in a steady operation state, and the running cost is calculated on the assumption that it is operated in this way.

  Also in the micro mist operation, as easily understood by comparing FIG. 5 and FIG. 7, the warm water going temperature of the heating heat exchanger 8 (the detected temperature of the warm water going temperature detecting means 84) and its warm water return temperature. The change rate of the temperature difference with respect to (the detected temperature of the hot water return temperature detection means 86), that is, the change degree of the temperature difference per set time (for example, 10 minutes) as the measurement time is used. When the temperature difference change degree is equal to or lower than a first predetermined temperature (for example, 5 ° C.), the degree of heat exchange with the hot water in the heating heat exchanger 8 is low, and the steady state transition determining means 136 has already been in steady operation. It is determined that the state has been changed.

  In this micro mist operation, as described above, tap water is supplied to the micro mist generating nozzle 58 through the water supply line 64, the mist heat exchanger 54, the drain line 66 and the micro mist line 72 from the start of the operation of the bathroom heater / dryer. The rest of the configuration and control other than this configuration are the same as in the above-described splash mist operation, and the running cost calculation and display flow is also the same as in the splash mist operation shown in FIG. Same as flow.

  In this micro mist operation, in the unsteady operation state, the heat source unit 36, the bathroom dryer main body 2, and the mist generating device 52 are operated. G1), the non-stationary operation cost (H1) is calculated based on the power consumption fee (G1) of the heating dryer body 2 and the consumption fee of tap water. In addition, about the gas consumption rate (G1) at this time, it can be made uniform, About the power consumption rate (D1) of the heating-dryer main body 2, the rated power consumption per unit time of the heating-dryer main body 2, It can be calculated on the basis of the operation time in the unsteady operation state and the unit price of the electricity charge, and the tap water consumption fee (S1) is the rated tap water consumption per unit time of the mist generator 52, the unsteady operation state. It can be calculated based on the operation time and the unit price of tap water.

  In the steady operation state, as in the splash mist operation, the heat source unit 36, the bathroom dryer main body 2, and the mist generating device 52 are operated. Therefore, the steady operation cost calculation means 154 includes the gas consumption fee of the heat source unit 36 ( G2) can be calculated based on the rated gas consumption per unit time of the heat source unit 36, the operation time in the steady operation state, and the gas unit price, and the power consumption rate (D2) of the heating dryer body 2 The heating dryer main body 2 can be calculated on the basis of the rated power consumption per unit time, the operation time in the steady operation state, and the unit price of the electric power charge. It can be calculated based on the rated tap water consumption per unit time, the operation time in the steady operation state, and the unit price of tap water.

  As mentioned above, although one Embodiment of the bathroom heating dryer according to this invention was described, this invention is not limited to this embodiment, A various deformation | transformation or correction is possible, without deviating from the scope of the present invention. .

  For example, in the above-described embodiment, the description has been made by applying the present invention to a configuration in which both the splash mist operation and the micro mist operation are performed. However, the present invention is not limited to this, and either the splash mist operation or the micro mist operation is performed. The present invention can be similarly applied to a configuration in which one of the operations is performed.

  In the above-described embodiment, the steady state transition determining unit 136 determines that the bathroom heater / dryer has transitioned to the steady operation state, but instead of such steady state transition determination, the steady state determination unit ( (Not shown), and it may be determined by the steady state determination means that the bathroom heater / dryer is in a steady operation state as follows. In this case, the temperature difference change calculating means 132 and the steady state are determined. The transition determining unit 136 can be omitted, and the temperature difference calculating unit 130 calculates the temperature difference of the hot water return temperature of the heating heat exchanger 8. In this embodiment, the same reference numerals are used to describe the same components as those in the above-described embodiment.

  In this embodiment, it is determined that a steady state has been reached using the temperature change of the return hot water (outflow side hot water) of the heating heat exchanger 8 of the heating dryer body 2. In FIG. 8, the flow from step S31 to step S36 in the splash mist operation of the bathroom heater / dryer of this embodiment is the same as the flow from step S1 to step S6 (see FIG. 6) of the above-described embodiment.

  In such an unsteady operation state, the warm water return temperature (outflow side temperature) of the heating heat exchanger 8 is detected (step S37), and the temperature difference calculation means 130 detects the warm water return temperature (warm water return temperature detection). The temperature difference (for example, the temperature difference between the temperature 10 seconds before and the current temperature) is calculated, and when the return temperature difference does not reach 5 ° C. or more, the process proceeds from step S38 to step S39. The flow from Step S39 to Step S42 is the same as the flow from Step S10 to Step S13 in FIG.

  In this step S38, when the return temperature difference of the heating heat exchanger 8 becomes 5 ° C. or more, it is assumed that warm water is normally generated in the heat source unit 36 and the warm water return temperature is increased, and the process proceeds to step S43. In step S43, it is determined whether or not the difference between the return temperatures is equal to or lower than a second predetermined temperature (for example, set to about 2 ° C.), and steps S43 and S44 are performed until the return temperature difference is equal to or lower than the second predetermined temperature (2 ° C.). Is repeatedly performed, and when such a state is performed for a stationary determination time (for example, set to about 20 minutes), it is determined that some abnormality has occurred in the hot water circulation system, and the process proceeds from step S44 to step S40. S42 is performed.

  In this step S43, when the temperature difference of the warm water return temperature of the heating heat exchanger 8 (detected temperature of the warm water return temperature detection means 86) becomes 2 ° C. or less, the heat source device 36, the heating dryer body 2 and the mist generating device 52. As a result, the steady state determination means (not shown) determines that the operation is in a steady operation state, and the operation of the bathroom heater / dryer in the unsteady state ends ( Step S45).

  In this way, after the unsteady state operation of the bathroom heater / dryer is finished, the steady state operation is started, and then the unsteady operation cost and the steady state operation state of the unsteady operation state after the bathroom heater / dryer operation is finished. The steady operation cost is calculated, and the flow from step S45 to step S54 is substantially the same as the flow from step S17 to step S27 in the above-described embodiment. The running cost can be calculated and displayed.

2 Heating / drying machine body 8 Heat exchanger for heating 44 Hot water return line 48 Hot water return line 52 Mist generator 54 Mist heat exchanger 56 Splash mist generating nozzle 58 Micro mist generating nozzle 60 Hot water return line for mist 62 Hot water return for mist Line 82 Evaporating heat exchanger 84 Hot water going-out temperature detection means 86 Hot water return temperature detection means 92 Controller 93 Operation remote control 130 Temperature difference calculation means 132 Temperature difference change calculation means 134 Temperature rise determination means 136 Steady state transition determination means 146 Running cost calculation Means 152 Unsteady operation cost calculation means 154 Steady cost calculation means

Claims (6)

A heating dryer body for heating and drying the inside of the bathroom, a mist generating device for generating and discharging mist, a heat source device for generating hot water and supplying the heated dryer body and the mist generating device, A bathroom heating dryer comprising:
Calculated by the running cost calculating means for calculating the running cost based on the gas consumption of the heat source unit, the power consumption of the heating dryer main body, and the tap water consumption of the mist generating device, and the running cost calculating unit And a running cost display means for displaying the running cost. The running cost calculation means includes an unsteady operation cost calculation means for calculating an unsteady operation cost in an unsteady operation state at an initial stage of operation, and a steady operation cost for calculating a steady operation cost in a steady operation state after the unsteady operation state. The mist generator includes a splash mist generating nozzle that ejects mist into the bathroom,
In the splash mist operation in which mist is ejected from the splash mist generating nozzle, the unsteady operation cost calculation means is based on the gas consumption amount of the heat source unit and the power consumption amount of the heating dryer main body in the unsteady operation state. And calculating the unsteady operation cost in the unsteady operation state, wherein the steady operation cost calculating means includes a gas consumption amount of the heat source unit in the steady operation state, a power consumption amount of the heating dryer body, and the mist generating device. The steady operation cost in the steady operation state is calculated based on the amount of tap water consumed, and the running cost calculating means calculates the unsteady operation cost and the steady operation cost calculating means calculated by the unsteady operation cost calculating means. Based on the steady operation cost calculated by Bathroom heater dryer according to claim 1, characterized in that for calculating the running costs. The mist generating device includes a micro mist generating nozzle that ejects micro mist,
In the micro mist operation in which mist is ejected from the micro mist generating nozzle, the unsteady operation cost calculation means includes the gas consumption amount of the heat source unit in the unsteady operation state, the power consumption amount of the heating dryer body, and the An unsteady operation cost in the unsteady operation state is calculated based on the tap water consumption of the mist generating device, and the steady operation cost calculation means is configured to calculate the gas consumption of the heat source unit in the steady operation state, the heating dryer Based on the power consumption of the main body and the tap water consumption of the mist generator, the steady operation cost in the steady operation state is calculated, and the running cost calculation means is the non-steady operation cost calculation means calculated by the non-steady operation cost calculation means. Based on the steady operation cost and the steady operation cost calculated by the steady operation cost calculation means, Bathroom heater dryer of claim 1 or 2, characterized in that to calculate the running cost of Kuromisuto operating conditions. The heating dryer body includes a heating heat exchanger that heats the air in the bathroom by exchanging heat with the hot water from the heat source unit, and the mist generator is connected to the hot water from the heat source unit. Including a heat exchanger for mist that heats tap water by heat exchange of the heat source, the supply side of the heat source unit and the inflow side of the heat exchanger for heating and the heat exchanger for mist are connected via a hot water outgoing line. The return side of the heat source unit and the outflow side of the heat exchanger for heating and the heat exchanger for mist are connected via a hot water return line, and in relation to the inflow side of the heat exchanger for heating, A hot water return temperature detection means for detecting the warm water return temperature is provided, and a hot water return temperature detection means for detecting the return temperature of the hot water is provided in relation to the outflow side of the heating heat exchanger. Furthermore, from the unsteady operation state, Steady state transition determining means for determining that a transition to the operation state is provided with,
When a change in detected temperature difference per set time of the warm water return temperature detecting means and the warm water return detecting means becomes equal to or lower than a first predetermined temperature, the steady state transition determining means includes the heat source device, the heating dryer body, and the mist. The bathroom heating dryer according to claim 2 or 3, wherein the generator determines that the unsteady operation state has shifted to the steady operation state. The heating dryer body includes a heating heat exchanger that heats the air in the bathroom by exchanging heat with the hot water from the heat source unit, and the mist generator is connected to the hot water from the heat source unit. Including a heat exchanger for mist that heats tap water by heat exchange of the heat source, the supply side of the heat source unit and the inflow side of the heat exchanger for heating and the heat exchanger for mist are connected via a hot water outgoing line. The return side of the heat source unit and the outflow side of the heat exchanger for heating and the heat exchanger for mist are connected via a hot water return line, and related to the outflow side of the heat exchanger for heating, A hot water return temperature detection means for detecting the return temperature of the hot water is provided, and further a steady state determination means for determining the steady operation state is provided,
When the temperature difference per set time of the detection temperature of the warm water return detection means is equal to or less than a second predetermined temperature, the steady state determination means is that the heat source unit, the heating dryer body and the mist generating device are in the steady operation state. The bathroom heating / drying machine according to claim 2, wherein the bathroom heating / drying machine is determined.   The unsteady operation cost calculation means is a fixed amount for the gas cost based on the gas consumption of the heat source unit, and the power cost per unit time for the power cost based on the power consumption of the heating dryer main unit and the power consumption The steady operation cost calculation means calculates the gas cost based on the gas consumption of the heat source unit based on the gas consumption per unit time and the operation time of the steady operation state. The power cost based on the power consumption of the heating / drying machine main body is calculated based on the power consumption per unit time and the operation time in the steady operation state, and the tap water consumption of the mist generator Is calculated based on the consumption of tap water per unit time and the operation time in the steady operation state. Bathroom heater Drying machine according to any of claims 2-4.

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