KR100275410B1 - Temperature control method in warm water heating apparatus - Google Patents

Abstract

The present invention relates to a temperature control method in a hot water heating device that performs heating by circulating hot water by connecting an outdoor unit and an indoor unit by a hot water return pipe and a hot water recirculation pipe. In order to solve the problem of causing discomfort, the first step of lowering the set temperature at the time of setting the "sleep" mode and the second step of operating for a predetermined time at the set temperature are repeated step by step until the set temperature reaches a predetermined temperature. And a temperature control method in the hot water heating device having a third step of operating a predetermined temperature after reaching the predetermined temperature, wherein the second step executes a "soft air blowing" operation when the room temperature is lower than the set temperature. When the room temperature became higher than the set temperature, the operation of "blowing stop" was carried out.

By doing so, it is possible to provide a quiet, comfortable airless heating, and to perform a "heavy air blow" when the room temperature is lowered by a predetermined value or more from the predetermined temperature. .

Description

TEMPERATURE CONTROL METHOD IN WARM WATER HEATING APPARATUS}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a temperature control method in a hot water heating device that connects an outdoor unit and an indoor unit by a hot water path pipe and a hot water path pipe, and circulates hot water to perform heating.

5 is a block diagram showing a conventional hot water heater, in FIG. 5, (1) is an outdoor unit, (2) is a combustor, (3) is an outdoor side heat exchanger, (4) is a hot water pipe. 14 is hot water, 15 is combustion gas passing part, 5 is hot water sensor, 16 is outlet hot water pipe, 6 is cistern tank, 7 is water cap, and 8 (9) ventilator, (9) circulation pump, (10) outlet hot water pipe, (11) hot water pipeline, (12) indoor unit, (17) blower, (13) indoor side heat exchanger, ( 18 is a blower, 19 is a room temperature sensor, 20 is an indoor unit control unit, 21 is an operation unit, 22 is an outdoor unit control unit, and 23 is a signal line.

FIG. 6 is a top view of the operation unit 21 of FIG. 5, and includes operation switches 27, operation switching switch 28, and room temperature setting switch 29 and "automatic", "strong", "weak" And the operation mode display lamps 30a to 30d and the set temperature display lamp 31 for " blowing stop " are provided.

Next, the operation of the conventional hot water heating device having the above configuration will be described.

When the operation switch 27 provided in the operation unit 21 of the indoor unit 12 is turned on, a control signal is sent to the outdoor unit controller 22 through the signal line 23, and the circulation pump 9 is operated to provide hot water. Hot water is circulated to the indoor side heat exchanger (13) via the reciprocating pipes (4) and (11).

In addition, the combustor 2 also starts combustion, and the outdoor unit controller 22 causes the hot water temperature passing through the outlet hot water pipe 16 detected by the hot water sensor 5 to be a set hot water temperature (about 75 ° C.). The amount of combustion of the combustor 2 is controlled.

On the other hand, in the indoor unit 12, the blower 18 is controlled according to each operation mode set by the indoor unit control unit 2, and warm air heating is performed.

Here, in the case where the operation mode capable of room temperature control, for example, the "automatic" operation mode is set, as shown in the room temperature control diagram of FIG. When low, perform "strong blowing" (part A), the room temperature rises higher than that, and perform "heavy blowing" (part B) until the set temperature T. Room temperature is maintained at the set temperature T by executing air flow rate control of " blowing stop " (part D) when the predetermined temperature is higher than the set temperature T (e.g., 1 to 2 DEG C). Doing.

In the conventional hot water heater, the room temperature control is performed as described above. Thus, as shown in part A of FIG. 7, room temperature fluctuations occur in a room being heated by a person's entrance and the like, and the room temperature is temporarily set to a temperature T. When the temperature is lowered by more than an arbitrary temperature, since the air volume becomes "strong air", there is a problem that the noise and the air volume increase rapidly and disturb the water surface or give an uncomfortable feeling due to the air blowing feeling.

Moreover, when setting room temperature low, there also existed a problem that air on / off of air generate | occur | produced frequently and it was unpleasant.

An object of the present invention is to solve the problems described above, to provide a "sleep mode", when the operation switching to the "sleep" mode, the increase in air volume due to the increase in air volume or the discomfort caused by the feeling of blowing It is to provide a temperature control method in a hot water heating device.

Further, another object of the present invention is to provide a temperature control method in a hot water heating apparatus with less on / off of blown air even at low temperature setting, such as in the operation of "sleeping" mode.

Further, another object of the present invention is to provide a temperature control method in a warm water heating apparatus which can prevent a decrease in room temperature even if the predetermined temperature is greatly reduced during operation of the "sleep" mode, for example. It is.

It is still another object of the present invention to provide a temperature control method in a hot water heating apparatus capable of setting a room temperature at the time of sleep suitable for a person's sense of heat or building.

It is still another object of the present invention to provide a temperature control method in a hot water heating apparatus that makes it possible to reliably execute startup at startup in " medicine air. &Quot;

1 is an explanatory diagram of room temperature control in a warm water heating apparatus of the present invention;

2 is a block diagram showing Embodiment 1 of the warm water heating apparatus of the present invention;

3 is a plan view of the operation unit according to the first embodiment of the present invention;

4 is an explanatory diagram of hot water control showing a second embodiment of the present invention;

5 is a block diagram of a conventional hot water heating device,

6 is a plan view of the operation unit of the conventional hot water heater,

7 is an explanatory diagram showing conventional room temperature control.

※ Explanation of code ※

1 outdoor unit, 2 combustor, 3 outdoor side heat exchanger, 4 hot water return pipe, 5 hot water sensor, 9 circulation pump, 11 hot water circuit, 12 indoor unit, 13 indoor heat exchanger, 18 blower fan, 19 room temperature sensor, 24 Outdoor side control unit, 25 Indoor side control unit.

The hot water heating device according to the present invention is a hot water heating device having a "sleeping" mode, and when the operation is switched to the "sleeping" mode, each of several set temperatures of low temperature is gradually operated for a predetermined time and then operated at a predetermined temperature. When the room temperature falls below the set temperature or the predetermined temperature at the several set temperatures and the predetermined temperature, the "soft air blowing" operation is executed, and when the room temperature rises above the set temperature or the predetermined temperature, the "blowing stop" is performed. To drive. Moreover, when room temperature falls more than predetermined value (delta) or more from predetermined temperature, it carries out a "heavy air blow" operation.

In the hot water heating apparatus according to the present invention, the hot water temperature setting of the hot water is changed to a low level when the operation is switched to the "sleeping" mode.

Embodiment of the Invention

Example 1

Hereinafter, Example 1 of the warm water heating device of the present invention will be described.

2 is a configuration diagram showing Embodiment 1 of a warm water heating device of the present invention. In addition, about the same part as the conventional structure shown in FIG. 5, the same code | symbol is attached | subjected and description is abbreviate | omitted and only a different part is demonstrated.

In Fig. 2, reference numeral 25 denotes an indoor unit controller electrically connected to operation switches and display lamps of the operation unit 26 provided on the ceiling surface of the room temperature sensor 19, the blower 18, and the indoor unit 12. Is an outdoor unit controller electrically connected to the indoor unit controller 25 and the signal line 23 and electrically connected to the hot water sensor 5, the combustor 2, and the circulation pump 9.

FIG. 3 is a plan view of the operation unit 26 of FIG. 2 and shows operation switches 27 such as the operation switch 27, the operation switching switch 28, the room temperature setting switch 29, and the like. And operation mode display lamps 30a to 30e for displaying operation modes such as " blowing stop " and " sleep ", and a set temperature display lamp 31 for displaying a set temperature of room temperature.

Next, the operation of the first embodiment of the present invention having the above configuration will be described using the room temperature control diagram in FIG.

First, when the operation switch 27 of the operation unit 26 of the indoor unit 12 is turned on, a control signal is sent from the control unit 25 to the control unit 24 of the outdoor unit 1 via the signal line 23, and the outdoor unit ( 1) The hot water is circulated in the indoor unit 12 by the operation of the circulation pump 9 through the hot water passage pipe 11 and the hot water return pipe 4, and the indoor unit 12 side of the blower 18 Warm air heating is performed by driving.

In normal heating, the operation mode is set to the "automatic" mode or the like by switching the operation changeover switch 28 of FIG. 3, the room temperature is detected by the room temperature sensor 19, and the feedback (feedback) control is performed. By this, the blowing amount is sequentially changed from, for example, "strong" to "medium" to "weak" to "stop", and the room temperature is maintained at an arbitrary set temperature.

As shown in Fig. 1, when the operation mode switch 28 is operated to switch to the sleep mode at the time t1, the first predetermined time (about 2 hours) is a predetermined temperature (14 ° C). The room temperature is automatically set and operated at 18 ° C. of + α ° C. (+ 4 ° C.). Then, the next constant time (about 2 hours) is automatically set to room temperature at 16 ° C of predetermined temperature (14 ° C) + β ° C (2 ° C) and operated. After that, the room temperature is automatically set to 14 deg.

In addition, the room temperature control for maintaining the set temperature at this time is basically performed only with "weak air blowing" and "blowing stop".

That is, at time t1, the room temperature is about 20 ° C. higher than the initial set temperature of 18 ° C., so the air blowing stops. After that, when the room temperature drops to about 18 ° C., the initial setting temperature, `` Stop blowing '' will be executed alternately. When the first predetermined time elapses and the time reaches t2, the room temperature setting is switched to 16 ° C, which is the second set temperature. However, at this time, the room temperature is near 18 ° C higher than the second set temperature, 16 ° C. Stop ", and then, when the room temperature drops to the vicinity of the second set temperature of 16 ° C, " medicine wind " and " blowing stop " are repeated. After the time t3, "weak air blowing" and "blowing stop" are alternately carried out in the same manner as above to keep the temperature near the final set temperature of 14 ° C, and the room temperature is kept at about 14 ° C, which is a predetermined temperature.

On the other hand, when the outside air temperature is very low, there is a case where the heating capacity is insufficient in the "medical air blowing", and the room temperature falls by a predetermined value δ ° C (about 1 ° C in this embodiment) by more than the predetermined temperature (14 ° C). Thus, heating is performed by "mid-air" only when room temperature falls more than predetermined temperature (14 degreeC) more than predetermined temperature (14 degreeC), and the fall of room temperature is prevented.

In this way, when the operation is switched to the "sleep mode" mode, the room temperature setting is gradually lowered every predetermined time, and the control is performed so that the room temperature is gradually lowered to the predetermined temperature by alternately performing "weak air blowing" and "ventilation stop". At the same time, because the outside air temperature is very low and the heating capacity is insufficient and the room temperature becomes the lower limit temperature, `` mid-air blowing '' is executed. You can run

Example 2

Next, Example 2 of the present invention will be described.

In Example 1, the temperature of the hot water supplied to the hot water flow path piping 4 via the outdoor side heat exchanger 3 of the outdoor unit 1 was set to a constant (for example, about 75 ° C.), but this embodiment 2 In the " sleep mode " operation, the temperature of the hot water supplied to the hot water heating pipe 11 is changed. 4 is an explanatory diagram showing the hot water temperature control thereof.

As shown in FIG. 4, when the operation is switched to the “sleep” mode by the operation unit 26 of the indoor unit 12, the signal is transmitted from the indoor unit control unit 25 to the outdoor unit control unit 24 via the signal line 23. The hot water temperature setting of the hot water is changed from 75 ° C to 65 ° C.

As a result, the combustion amount of the combustor 2 is controlled so that the temperature of the hot water detected by the hot water sensor 5 becomes the set temperature changed to a low temperature, and the low temperature hot water is sent to the indoor unit 12. Since the hot water temperature is lowered, the output of the warm air sent by the blowing fan 18 in the "medicine air" becomes lower, so that the on / off frequency of the air blow can be reduced, so that the noise fluctuation and the warm wind fluctuation are less. Comfortable heating suitable for sleep is possible.

Example 3

Next, Example 3 of the present invention will be described.

In the third embodiment, when the room temperature drops by a predetermined value δ or more from the predetermined temperature during the "sleeping" mode operation, "mid-air blowing" is executed and the hot water temperature setting of hot water is changed to high.

In the second embodiment, when the outside air temperature drops sharply during the operation in the "sleeping" mode, when the room temperature drops by a predetermined value δ (about 1 ° C.) or more from the predetermined temperature (14 ° C.), it becomes a “heavy air blow”. The capacity may be insufficient and room temperature may fall. At this time, in the case of Example 2, "strong blowing" is required, but according to the third embodiment, since the hot water temperature of hot water is set high, the heating output is high and the drop in room temperature can be prevented even if the "strong blowing" is not performed. Therefore, the heating suitable for the water surface can be achieved without increasing the noise.

Example 4

Next, Example 4 of the present invention will be described.

In the fourth embodiment, the predetermined temperature (14 ° C.), which is the basis of the room temperature setting, can be arbitrarily changed during the operation of the “sleep” mode.

In the "sleep mode" mode, heating is performed based on a predetermined temperature (14 ° C). However, the optimum temperature varies depending on individual differences or buildings. Therefore, if the user can arbitrarily change to a predetermined temperature suitable for each situation, it is possible to appropriate heating according to individual differences or buildings of the sense of temperature.

Example 5

Next, Example 5 of the present invention will be described.

In the fifth embodiment, the "heavy breeze" start or the "strong blow" start or a combination thereof is started temporarily at the time of "weak air" start. Even when low speed of "weak air" is started by temporarily starting by "heap wind", "strong air", or a combination thereof, and returning to "weak air" after starting. It is possible to carry out a start, and the air volume of the "medicine air" can be reduced as much as possible. As a result, the heating capacity of the "medical air blowing" can be reduced and the on-off frequency of the air blowing can be reduced to a minimum, and it is possible to realize a quieter and more comfortable heating during sleep.

As described above, according to the present invention, since the room temperature setting is gradually carried out at the time of the operation switching to the "sleep mode" mode, the temperature is gradually lowered, and the operation is performed only with "weak air blowing" and "air blowing stop". Heating can be performed.

In addition, when the room temperature falls below the predetermined temperature by a predetermined value or more, " mid-air blowing " is performed so that the decrease in the room temperature can be prevented.

In addition, according to the present invention, since the hot water temperature setting of the hot water is lowered during the operation switching to the "sleeping" mode, it is possible to perform a comfortable heating with less on-off frequency of blowing.

Claims (3)

After setting the sleep mode, the first step of lowering the set temperature and the second step of operating at the set temperature for a predetermined time are repeated step by step until the set temperature reaches a predetermined temperature. A temperature control method in a hot water heating device having a third step of operating to maintain the predetermined temperature, In the second step, when the room temperature is lower than the set temperature, the operation of "weak air" is performed, and when the room temperature is equal to or higher than the set temperature, the "heating stop" operation is performed. Temperature control method in The method of claim 1, The temperature control method in the warm water heating device, characterized in that the "mid-air blowing" operation is executed when the room temperature falls below the predetermined temperature by the second step. The method of claim 1, In the first step, the temperature control method of the hot water heating apparatus, characterized in that the hot water temperature setting of the hot water is lowered.