JP3908602B2 - Heating system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention provides a heating apparatus that uses hot water boiled by an electric water heater or a heater water heater, and can automatically switch to heating of another system when a shortage of capacity occurs.
[0002]
[Prior art]
Conventionally, in this type, as disclosed in, for example, Japanese Patent Publication No. 51-43701, hot water stored using cheap late-night power is used as heating in winter. It was intended to expand the range.
[0003]
[Problems to be solved by the invention]
By the way, with this conventional device, even if an auxiliary heater is provided, the heating capacity is limited, and if the temperature of the hot water in the hot water storage tank decreases due to the progress of heating, it is fatal that heating cannot be continued. The major problem is how to overcome this drawback.
[0004]
[Means for Solving the Problems]
This invention pays attention to this point, and in order to solve the above-mentioned drawbacks, in particular, the construction thereof includes a hot water storage tank for storing hot water heated by a heat source such as an electric heater or a heat pump unit, and the hot water in the hot water storage tank. In which the first heating means for heating is used directly or indirectly through a heat exchanger, and the second heating means is provided separately from the first heating means, and the first heating means is provided. Help guide that detects the capacity reduction of the means and starts operation of the second heating means, stops the first heating means, starts heating the hot water in the hot water storage tank by the heat source, and switches to heating by the first heating means again Means are provided.
[0005]
As a result, when there is a shortage of capacity during the heating by the first heating means using the hot water stored in the electric water heater or the heat pump water heater, the first heating means is stopped and automatically the second heating means of another system. Since the heating can be continued and the heating can be continued, the user can always use the device without anxiety that the heating stops.
[0006]
Also, when switching from the first heating means to the second heating means, if this switching is displayed on the display means, the user knows why the first heating means has stopped and the second heating has been started. It is easy to use without giving the user a sense of discomfort or distrust.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Next, a heating apparatus according to the present invention will be described with reference to an embodiment shown in FIGS.
Reference numeral 1 denotes a hot water storage tank connected to a water supply pipe 2 at the bottom and a hot water supply pipe 4 connected to a hot water tap 3 provided in a suitable place such as a kitchen at the top. A heat pump 5 is connected to a heat source 5 comprising a heat pump unit. Hot water in the hot water storage tank 1 is circulated through a heat pump circuit 7 having a circulation pump 6 to store it as hot water.
[0008]
The heat pump unit as the heat source 5 includes a compressor (not shown), a condenser constituting a heat exchanger 8 with hot water, a decompressor (not shown), and an evaporator (not shown) in this order. A heat pump circuit is configured by being connected.
[0009]
The heat pump circulation circuit 7 is composed of a heat pump forward pipe 9 connected to the bottom of the hot water storage tank 1 and a heat pump return pipe 10 connected to the upper part of the hot water storage tank 1. The cold water is heated by exchanging heat in the heat exchanger 8 of the heat source 5 through the heat pump forward pipe 9, and the heated hot water is returned to the upper part of the hot water storage tank 1 through the heat return pipe 10. The hot water is stored in the hot water storage tank 1 from above.
[0010]
A plurality of hot water storage temperature sensors 11 are vertically provided on the outer peripheral surface of the hot water storage tank 1 at predetermined intervals. The hot water storage temperature sensors 11a, 11b, 11c, and 11d are arranged from the top. The remaining hot water storage amount (heat storage amount) is detected depending on whether the eye has detected a temperature equal to or higher than a predetermined temperature, and the hot water in the hot water storage tank 1 is detected by detecting the temperature of the hot water storage temperature sensors 11a to 11d. It is used as a material for determining the temperature distribution.
[0011]
Reference numeral 12 denotes a first heating means comprising a floor heating device, and a heating circulation comprising a heating heat exchanger 13 provided in the upper part inside the hot water storage tank 1, a heating forward pipe 15 having a heating circulation pump 14, and a heating return pipe 16. It communicates through the circuit 17 and circulates the heat medium to exchange heat with hot water in the hot water storage tank 1 to raise the temperature and heat the room where the first heating means 12 is laid.
[0012]
Reference numeral 18 denotes a second heating means comprising a heating air conditioner installed in the same room as the first heating means 12, and the first heating means 12 can continue the heating operation when the hot water temperature in the hot water storage tank 1 decreases. When it disappears, the operation is automatically started to change to the first heating means 12 and the room heating is continued.
[0013]
A remote control device 19 controls the hot water storage tank 1 and the heat source 5 and the first heating means 12 in association with each other by operating the heat source 5 and the heat pump circulation circuit 7 by using low-cost power having a time measuring function. Hot water is stored in the hot water storage tank 1 and hot water supply by the hot water storage temperature sensors 11a to 11d is detected to detect the lack of capacity due to the lack of heat for heating and heating, and the heat source 5 and the hopping circuit 7 are forced even during daytime. The hot water is stored in the hot water storage tank 1 by operating automatically.
[0014]
2 will be described in detail with reference to a block diagram of an electric circuit shown in FIG. 2. Hot water storage temperature sensors 11a to 11d and an operation unit 21 are connected to an input side of a capacity determination unit 20 composed of a microcomputer. Judging the lack of capacity during hot water supply and heating from the detected temperatures of the temperature sensors 11a to 11d, stopping the heating circulation pump 14 connected to the output side to interrupt the heating operation by the first heating means 12, As described above, the heating-side circulation pump 6 on the output side is driven to start replenishment of the heating capacity in the hot water storage tank 1.
[0015]
When the heating by the first heating unit 12 is interrupted, the capacity determination unit 20 transmits an operation start signal from a wireless transmission unit 22 connected to the output side, and this signal is provided in the second heating unit 18. The receiving unit 23 receives the operation and operates the second heating unit 18 to continue the heating operation, and the capacity determination unit 20 displays the switching state of the heating with the display unit 24 in characters and voices. The ability determination unit 20, the transmission unit 22, and the reception unit 23 constitute help guide means 25.
[0016]
Next, the operation of this embodiment will be described.
If the heating circulation pump 14 is driven so as to use the heat of the hot water storage tank 1 that has been stored by using inexpensive late-night power for heating, high-temperature water and heat in the hot water storage tank 1 are heated by the heating heat exchanger 13. If the medium exchanges heat and dissipates this heat by the first heating means 12 which is floor heating, extremely economical and good heating can be performed.
[0017]
Then, when the heating in the first heating means 12 continues and the hot water temperature in the hot water storage tank 1 decreases and the heating capacity becomes insufficient, the capacity determination unit 20 of the help guide means 25 detects the hot water storage temperature sensors 11a to 11d. Judging by the detected temperature, the heating operation by the first heating means 12 is temporarily stopped.
[0018]
Furthermore, the capacity determination unit 20 drives the heat pump circulation pump 6 to start replenishment of the heating capacity to the hot water storage tank 1, transmits an operation start signal from the wireless transmission unit 22, and performs heating via the reception unit 23. The second heating means 18 which is a general air conditioner is started to operate.
[0019]
As a result, when heating with hot water boiled using midnight power, when the hot water temperature falls and the heating capacity is insufficient, the second heating means 18 of a completely different system is temporarily operated, thereby heating. Can be used without any anxiety or dissatisfaction to the user because the heating is interrupted, and it can be used with good ease of use and at the same time as the first heating means 12 is stopped. When the heat circulation circuit 7 starts operation, the heating capacity in the hot water storage tank 1 is recovered by heating with hot water, and when the temperature rises to a predetermined temperature, the help guide means 25 again starts heating from the second heating means 18 to the second heating means 18. It can be switched to heating by one heating means 12.
[0020]
Further, when switching from the heating by the first heating means 12 to the heating by the second heating means 18, for example, the display means 24 displays a letter “the heating means has been switched” to indicate to the user the heating means. It is possible to inform that the user has been automatically switched, to accurately inform the user of the current situation, and to always use the device without any distrust.
[0021]
Next, another embodiment of the present invention shown in FIGS. 3 and 4 will be described. The same parts as those in the first embodiment are denoted by the same reference numerals, and only different points will be described.
The first heating means 12 is composed of a fan condenser comprising a radiator 26 and a hot air fan 27. The heating forward pipe 15 is provided with a forward temperature sensor 28, and the heating return pipe 16 is provided with a return temperature sensor 29. The capacity determination unit 20 determines that the heating capacity is insufficient at the temperature of either the return temperature by the return temperature sensor 28 or the return temperature by the return temperature sensor 29.
[0022]
The second heating means 18 is composed of a forced air supply / exhaust type hot air heater using oil as fuel, and the transmission unit 22 and the reception unit 23 are connected to each other by a signal line. The start signal is reliably transmitted, and the start and stop of the operation of the second heating means 18 are smoothly performed.
[0023]
Therefore, in this embodiment, the going-out temperature of the hot water detected by the going-out temperature sensor 28 during the heating operation by the first heating means 12 is input to the ability judging unit 20 of the help guide means 25, and this temperature is lowered to increase the heating ability. When it is determined that there is a shortage, the energization of the heating circulation pump 14 and the hot air fan 27 is stopped, the heating operation of the first heating means 12 is stopped, and the operation start signal from the transmission unit 22 is received via the signal line. It is sent to the unit 23 to start the heating operation of the second heating means 18, and the same effect can be obtained.
[0024]
In addition, in this invention, the 2nd heating means 18 may be a hot water heating apparatus of another system other than this, and any heating apparatus may be used as long as it is completely independent from the first heating means 12.
[0025]
【The invention's effect】
As described above, according to the present invention, when there is a shortage of capacity during the heating by the first heating means using the hot water stored in the electric water heater or the heat pump water heater, the first heating means is automatically stopped. Since the second heating means of another system can be operated and heating can be continued, inexpensive and efficient heating can be obtained, and without giving the user anxiety that heating will stop. It can always be used with peace of mind.
[0026]
Also, when switching from the first heating means to the second heating means, if this switching is displayed on the display means, the user knows why the first heating means has stopped and the second heating has been started. It is easy to use without giving the user a sense of discomfort or distrust.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of a heating apparatus with an embodiment of the present invention.
FIG. 2 is a block diagram of the main electric circuit.
FIG. 3 is a schematic configuration diagram of a heating apparatus with another embodiment.
FIG. 4 is a block diagram of an essential electric circuit in FIG. 3;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Hot water storage tank 5 Heat source 11a-d Hot water storage temperature sensor 12 1st heating means 13 Heating heat exchanger 18 2nd heating means 20 Capacity determination part 22 Transmission part 23 Reception part 24 Display means 25 Help guide means

Claims (6)

A hot water storage tank that stores hot water heated by a heat source such as an electric heater or a heat pump unit, and first heating that uses the hot water in the hot water storage tank directly or indirectly through a heat exchanger. in those constituting the unit, said the first heating means comprises a second heating means of another system, the second to the heating means operation is started by detecting the capacity reduction of a first heating means, the first heating A heating apparatus comprising: a help guide means for stopping the means, starting the heating of the hot water in the hot water storage tank by the heat source, and switching to the heating by the first heating means again . The help guide means is configured to determine whether the heating capacity is insufficient from the temperature distribution of the hot water in the hot water storage tank or the warm water going to the first heating means and the return temperature, and a signal from the capacity judging section. A transmission unit that transmits an operation start signal to the device by wire or wireless, and a reception provided in the second heating unit that receives the operation start signal from the transmission unit by wire or wireless and starts operation of the second heating unit The heating device according to claim 1, wherein the heating device is configured with a portion. 3. The heating apparatus according to claim 1, further comprising display means for displaying when the help guide means is activated and the second heating means starts operation. The heating apparatus according to claim 1 or 2, wherein the second heating means comprises an air conditioner. The heating apparatus according to claim 1 or 2, wherein the second heating means comprises a heater using gas, oil or electricity as fuel. The heating apparatus according to claim 1 or 2, wherein the second heating means is constituted by a hot water heating apparatus of another system.

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