JP2007085658A - Heating device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem wherein, in a heat pump water heater having a floor heating function with a heat pump as the heating source, hot water becomes short when operated by midnight power only. <P>SOLUTION: When a heating operation is started by a floor heating remote controller 21 which is set for midnight power only, a display is performed on a display part for urging a user to change the setting. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to temperature control of a hot water floor heater.

  Conventionally, the floor heating apparatus using this kind of hot water is often used as a gas water heater in a general area, and a hot water boiler using oil in a cold area as a heat source. However, in recent years, in the field of water heaters, heat pump water heaters using CO2 refrigerant have been released and are rapidly spreading due to low running costs and environmentally friendly products. A multi-function type with a heating function has appeared.

  The heat pump water heater has a hot water storage tank of 370L and 460L, is heated using cheap electricity at midnight, and is further multiplied by the high efficiency of heat pump operation, which is about 1/5 the cost of a gas water heater The hot water supply can be covered.

  A conventional heat pump water heater to which this type of heating function has been added is one that divides a floor heating panel of one room into a plurality of regions and heats each region, and includes a floor heating panel, an electromagnetic three-way valve, A heat circulation circuit including a heat exchanger capable of exchanging heat and a heat exchanger capable of exchanging heat with hot water stored in a hot water storage tank is provided (see, for example, Patent Document 1).

  Hot water is circulated in the heat circulation circuit, and the floor heater panel is used to exchange heat from the heat exchanger that can exchange heat with the heat pump or hot water stored in the hot water tank and heat exchanger that can exchange heat. Dissipate heat.

In addition, an electromagnetic on-off valve is provided corresponding to each floor heating panel, and when the floor heating panel is started up, the duty ratio of each electromagnetic on-off valve is adjusted by adjusting the duty ratio of each electromagnetic on-off valve. The steady state of the heating panel was maintained.
JP 2002-364866 A

  By the way, the heat pump water heater to which the heating function is added has a heating load added to the conventional hot water supply load in the type to which the heating function is added. There are many cases, and the shortage is compensated by daytime driving. If the user is set to use only midnight power to reduce running costs when the amount of hot water used is low in summer, etc., there is a high risk of running out of water if heating is performed in that setting in winter.

  The present invention solves the above-mentioned conventional problem, and when the user has set to use only midnight power, when performing heating operation, a display prompting to change the setting of the water heater is performed when operating the remote control for the heating terminal. The purpose is to make the user aware of the hot water shortage.

Heat pump type heating means for heating water flowing in the circulation path by a pump, a terminal part heated by hot water in the circulation path heated by the heating means, and a terminal part for operating / stopping the terminal part Remote control, and the heating means has a setting that operates only during midnight power hours and a setting that also operates during daytime hours, and when the setting of the heating means is a setting that operates only during midnight power hours, the terminal unit When the remote controller is operated to start operation, the display unit is urged to change to a setting for driving during daytime hours.

When the user is set to use only midnight power, when the heating operation is carried out, a warning prompting the user to change the setting of the water heater when the remote control for the heating terminal is operated will be noticed to prevent the user from running out of hot water Can do.

  A first invention is a heat pump type heating means for heating water flowing in a circulation path by a pump, a terminal part heated by hot water in the circulation path heated by the heating means, and an operation of the terminal part A remote control for the terminal unit that performs the stop, the heating means has a setting that operates only during midnight power hours and a setting that also operates during the daytime hours, and the setting of the heating means is set to operate only during midnight power hours In this case, when the operation is started by operating the terminal remote controller, the heating device prompts the display unit to change to a setting for driving in the daytime time zone.

  As a result, when the user is set to use only midnight power, when the heating operation is performed, a notification prompting the user to change the setting of the water heater is displayed when operating the remote control for the heating terminal. Can be prevented.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 shows a configuration diagram of a heating device according to a first embodiment of the present invention.

  In FIG. 1, the heating device includes a heat pump unit 1 for heating hot water and a tank unit 2 for storing the hot water. The heat pump unit 1 includes a compressor 15, an evaporator 16, and a heat exchanger 17, and heats the hot water by radiating heat with the heat exchanger 17 using a refrigerant circulating inside.

  The tank unit 2 includes a hot water storage tank 3 for storing hot water heated by the heat pump unit 1, and low temperature water at the lower portion of the hot water storage tank 3 is supplied to the heat pump unit 1 through the boiling pump 4, and the heat exchanger 17 is Boil through. The boiled hot water is returned to the upper part of the hot water storage tank 3.

  The boiled hot water is taken out from the upper part of the hot water storage tank 3 and discharged from the faucet 18, and is radiated through the heating heat exchanger 5 and the bathtub heat exchanger 19. The radiated hot water is returned to the lower part of the hot water storage tank 3. In FIG. 1, a heat dissipation circuit is formed which is connected from the upper part of the hot water storage tank 3 to the lower part of the hot water storage tank 3 via the heating heat exchanger 5 or the bathtub heat exchanger 19. Moreover, in the heat dissipation circuit, the heat exchanger 5 for heating and the heat exchanger 19 for bathtub are connected so as to be in parallel with each other, and if heat can be radiated from one heat exchanger, both heat exchangers It is possible to dissipate heat at the same time.

  The heat dissipated through the bathtub heat exchanger 19 is used to boil in addition to boiling the bathtub 20. The heat radiated through the heating heat exchanger 5 functions as floor heating through the heating panel 13 (13a and 13b).

Floor heating is performed by a heating circuit formed by a heat exchanger 5 for heating, a heating circulation pump 8, a heating return thermistor 9, a heating forward thermistor 10, an expansion tank 11, a thermal valve 12, and a heating panel 13. In the temperature control of the floor heating, the heating circulation pump 8 is turned on to circulate hot water, and the flow rate of the heating heat exchange pump 6 is controlled according to the temperature of the heating forward thermistor 10 so that the target hot water temperature is reached. Is working.

  The floor heating panel 13 is connected to two systems 13a and 13b, and is installed so that the floor heating panels 13a and 13b are arranged in parallel by branching the heating circuit in parallel. Further, thermal valves 12 (12a, 12b) are connected to the floor heating panels 13a and 13b, respectively. The expansion tank 11 absorbs expansion and contraction of the heating water.

  In addition to the above, the temperature control of the floor heating is performed by controlling the circulation amount of hot water flowing through the heat dissipation circuit. That is, the heating heat exchange pump 6 and the heating heat exchange outlet thermistor 7 are provided on the heat radiation circuit, the temperature of the circulating hot water is detected by the heating heat exchange outlet thermistor 7, and the heating heat exchange pump 6 is rotated according to the detected temperature. Control the number.

  Further, the floor heating temperature can be arbitrarily set by the user using the floor heating remote controller 21. FIG. 2 is an external view of the floor heating remote controller 21 according to the first embodiment of the present invention, and the floor heating remote controller 21 includes a temperature setting unit 14 for setting the floor temperature.

  About the heating apparatus comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, boiling by the heat pump unit 1 boils the entire amount of the hot water storage tank 3 at midnight when the electricity bill is inexpensive. In the case of setting only midnight power “midnight only”, the subsequent boiling is not performed, and when the hot water in the hot water storage tank 3 is used up, hot water supply, hot water filling, hot water boiling increases, and heating operation cannot be performed. In the setting of “Omakase” to increase the daytime boiling, the heat pump unit 1 automatically increases the amount of hot water in the hot water storage tank 3 and the hot water temperature does not fall below a certain level so that the hot water does not run out. In addition, the setting of boiling is switched with a kitchen remote control (not shown).

  When the operation of turning off / on the floor heating remote controller 21 corresponding to the floor heating panel 13a is operated by setting only midnight power, and the floor heating operation is started, as shown in FIG. Please leave the amount of hot water to be boiled with the kitchen remote control per day "and prompt the user to change the setting.

  INDUSTRIAL APPLICABILITY The present invention is effective in preventing hot water from running out using a heat pump of a system that performs heating using hot water as a heating source.

The block diagram of the heating apparatus in embodiment of this invention External view of floor heating remote controller in the embodiment of the present invention The display figure of the floor heating remote control in embodiment of this invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Tank unit 2 Heat pump unit 5 Heat exchanger for heating 6 Heating heat exchange pump 8 Heating circulation pump 10 Heating thermistor 12 Thermal valve 13 Floor heating panel 21 Floor heating remote control

Claims (1)

Heat pump type heating means for heating water flowing in the circulation path by a pump, a terminal part heated by hot water in the circulation path heated by the heating means, and a terminal part for operating / stopping the terminal part Remote control, and the heating means has a setting that operates only during midnight power hours and a setting that also operates during daytime hours, and when the setting of the heating means is a setting that operates only during midnight power hours, the terminal unit A heating device that urges the display unit to change to a setting that also operates during daytime hours when the remote controller is operated to start operation.