JPH0258541B2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention provides a heat storage tank device that can utilize the heat stored in the heat storage tank according to changes in the desired heating temperature, such as at night or early in the morning, and can effectively utilize the heat stored in the heat storage tank. Regarding.

[Background technology]

An air conditioner that stores hot air obtained from an air-type solar heat collector or the like in a heat storage tank and air-conditions a room using the heat released from the heat storage tank is disclosed in the patent application filed by the present applicant, for example. It has been proposed in the specification, drawings, etc. of No. 59-39686.

However, in a conventional heat storage tank device using such a heat storage tank, heat radiation from the heat storage tank is used only during the night air conditioning time from when heating is required, such as after sunset, to before going to bed.

On the other hand, when people are in the room, relatively high-temperature warm air must be discharged in order to obtain a sufficient sensible temperature, and therefore, when the discharge temperature decreases, heat is stored in the heat storage tank. Sometimes, it is necessary to stop the air blowing until the next heat storage, and the heat storage utilization efficiency of the heat storage tank is poor.

Note that when the room temperature is low, such as early in the morning, the room can be preheated by blowing out warm air even if the temperature of the hot air is relatively low compared to the temperature of the hot air during nighttime air conditioning hours.

[Purpose of the invention]

In addition to the night air conditioning time from after sunset to before going to bed, the present invention also provides air conditioning during the early morning air conditioning time, such as before waking up.
The object of the present invention is to provide a heat storage tank device that can utilize low-temperature blown air by making heat radiation from the heat storage tank, increase the heat storage utilization efficiency of the heat storage tank, and solve the above-mentioned problems.

[Disclosure of the invention]

An embodiment of the present invention will be described below based on the drawings.

In the figure, a heat storage tank device 1 is a heat storage tank 2 of a house.
A fan F1 is provided in the duct 3 leading from the room R to the room R, and also includes a timer device 5 for operating the fan F1 during night air conditioning time A and early morning air conditioning time B, and a detector 6 for detecting the air outlet temperature. In this embodiment, the heat storage tank 2 can store hot air from an air-type solar heat collector C.

For example, the solar heat collector C is installed on a sloped roof 2 facing south.
Inside a box body 24, a transparent plate 23 made of a glass plate, synthetic resin, etc. is placed on top of a frame body 22 that stands up surrounding the sloped roof 21.
A heat collector 27 is disposed via a support piece 26 .

The heat collector 27 is made of a metal plate or synthetic resin plate with a black finish or a solar heat selective absorption film treatment, and is sometimes provided with vertically extending bent portions, fins, etc. to improve heat collection efficiency.

The box body 24 has an air outlet and an air inlet by opening the sloped roof 21 at an upper part and a lower part. A feeding duct 37 and a circulation duct 39 are connected to each other.

The feeding duct 37 extends downward, interposes another fan F2, and has a lower end.
An opening is formed on one inner surface of the cloth foundations 40 and 41 facing each other.

Further, a branch duct 12 is connected to the feed duct 37 below the room R, which is provided with a vent 11 that opens in the room R and has the fan F1 interposed therebetween. Note that the branch duct 12 and the lower portion of the branch duct 12 of the feed duct 37 form the duct 3 that communicates from the heat storage tank 2 to the room R.

Further, the circulation duct 39 extends into the underfloor space up to the inner surface of the cloth foundation 41, and the circulation duct 39 is provided with a vent 13 that opens above the room R.

The heat storage tank 2 is provided in the underfloor space in this example. In the heat storage tank 2, a solid heat storage material 50 such as gravel or crushed stone is loaded in a ventilated manner between ventilation plates 49, 49 which are provided with a gap between them and the cloth foundations 40, 41.

Note that a first damper 5 is provided in the vents 11 and 13.
1. A second damper 52 is provided, and a third damper 53 is provided below the feeding duct 37;
Further, a fourth damper 54 is provided above. Note that a fifth damper 55 is disposed above the circulation duct 39.

Therefore, the first, second, fourth, and fifth dampers 5
1, 52, 54, and 55, the hot air from the solar heat collector C passes through the supply duct 37 and the branch duct 12, and is discharged from the vent 11 into the room R. It can be recycled to the solar heat collector C through the solar heat collector C.

Further, by closing only the first and second dampers 51 and 52 and driving the fan F2, the hot air from the solar heat collector C is transferred to the solid heat storage material 5 of the heat storage tank 2.
Heat can be stored to 0. Also, the first, second, and third dampers 5
When only 1, 52, and 53 are opened and the fan F1 is operated, the warm air that has exchanged heat with the heat stored in the heat storage tank 2 passes through the duct 3 and is discharged from the vent 11 into the room R. It can be air conditioned. Further, the exhaust gas can be circulated to the heat storage tank 2 from the vent 13 through the circulation duct 39.

The branch duct 12 is provided with the detector 6 that detects the temperature of hot air blown out from the heat storage tank 2, and in this embodiment, the air outlet of the solar heat collector C is also equipped with a sensor 6 that detects the temperature inside the solar heat collector C. A detector 14 for detection is provided, and the detectors 6 and 14 are connected to a control device 15 that houses the timer device 5, respectively.

The control device 15, together with the timer device 5 and the detectors 6 and 14, constitutes an electric circuit shown in FIG.

The detectors 6 and 14 are thermistors or the like, and their resistance value decreases as the temperature rises. In addition, resistors r1, r2, and r3 are connected in series to the detectors 6 and 14, and changes in potential between them are detected by an operational amplifier.
Convey to OP1 and OP2. In addition, operational amplifier OP1,
OP2 is a reference potential from resistors r, r and a detector 6,
After comparing the potentials from the detectors 6 and 14,
As the potential of becomes large, relays R1 and R2 are activated via amplification transistors TR1 and TR2.
can be driven respectively. In this way, the detectors 6, 14
operates relays R1 and R2 via operational amplifiers OP1 and OP2 by detecting a temperature determined according to resistors r1 to r3. Note that the a contact R1 of the relay R1 has the fan F1, the first, second, third
dampers 51, 52, and 53 are connected in parallel. Note that a timer T and its time limit contact TR are connected to the a contact R1, which drives the fan F1 for a short time and opens the dampers 51, 52, and 53 when the heating switch S1 is turned on.

Also, connect another fan F to the a contact R2 of relay R2.
2, third, fourth, and fifth dampers 53, 54, 55
are connected in parallel.

The timer device 5 is, for example, a 24-hour timer and switches the detector 6 between a line 16 with a resistance r1, a line 17 with no resistance, and a line 18 with a resistance r3.

The resistor r1 cooperates with the detector 6 to turn on the relay R1 when the necessary relatively high hot air can be blown during the night air conditioning time A, which is from after sunset to before going to bed, for example from 16:00 to 22:00. It is set to work. Further, the resistor r3 is set so as to discharge warm air at a relatively low temperature, which is necessary during early morning air conditioning time B, which is between 4:00 and 6:00, for example, before waking up.

The timer device 5 connects the line 16 to the detector 6 during the night air conditioning time A, and also connects the line 16 to the detector 6 during the night air conditioning time A and the early morning air conditioning time B, for example from 10 p.m.
The line 17 is connected to the line 17 during the stop time H up to 9:00 pm, and changes over time as if it is in contact with the line 18 during the early morning air conditioning time B.

On the other hand, the resistance value of the resistor r3 of the detector 14 is set so that the relay R2 is operated at a temperature that allows high-temperature air sufficient to store heat in the heat storage tank 3 to be sent to the heat storage tank 2. .

In Fig. 2, S0 is the main switch, D
is a rectifier circuit.

[Effect]

Then, the main switch S0 is turned on.

When the solar radiation is large and hot air with a high temperature suitable for storing heat in the heat storage tank 2 can be discharged, the detector 14 detects the temperature, and relay R2 is activated as described above.
Close the a contact R2 of the fan F2, damper 53,
By opening 54 and 55, warm air from the solar heat collector C is sent to the heat storage tank 2 and the heat is stored therein.

On the other hand, during the night air conditioning time A after sunset, by turning on the heating switch S1, the fan F1,
The dampers 51, 52, and 53 are opened to blow out hot air from the heat storage tank 2 through the vent 11, and the detector 6 detects the temperature of the air blown out.

When the air outlet temperature is higher than the temperature required during the night air conditioning time A set by the resistor r1, as described above, the a of the relay R1 is
Close contact R1, fan F1, damper 51,5
By opening 2 and 53, hot air continues to be discharged. Note that the return air circulates through the vent 13.

Further, after continuing to discharge high-temperature air during the night air conditioning time A, after the night air conditioning time A ends, the timer device 5 switches to the line 17 and stops the operation of the fan F1.

Note that when the temperature of the blown air detected by the detector 6 falls below the set temperature by the end of the night air conditioning time A, the operational amplifier OP1 opens the a contact R1 to stop the fan F1. When the stop time H ends and the timer device 5 switches to the line 18 for the early morning air conditioning time B, as shown in FIG. Discharge can be performed by turning on the a contact R1. Note that when the amount of residual heat stored is large, high-temperature air can also be discharged.

In the early morning air conditioning time B, the air volume of the fan F1 may be changed, and in this way, the residual heat in the heat storage tank 2 is used to enable air conditioning at a relatively low temperature in the early morning, and the heat storage in the heat storage tank 2 is utilized. Increase efficiency.

In addition, during night air conditioning time A in living rooms, etc., a room temperature of about 16 to 20 degrees Celsius is normally desired, but in early mornings when the outside air temperature is low and the room temperature is dropping,
Furthermore, it is known that between 6 and 8 am in the early morning, you can feel relatively warm at a room temperature of 10°C or higher, and that air at a similar temperature can be used for heating in the early morning. There is.

〔Effect of the invention〕

As described above, the heat storage tank device of the present invention enables air conditioning using heat radiation from the heat storage tank during the night air conditioning period from after sunset to before going to bed, and also allows air conditioning to be stopped after the night air conditioning period ends and utilizes the residual heat. This makes it possible to perform low-temperature heating during the early morning air conditioning hours, such as before waking up, making it possible to effectively utilize the heat stored in the heat storage tank, and improving the livability of the house as heating can be performed during the early morning air conditioning hours. It can have many effects such as.

In the heat storage tank device of the present invention, thermally deformable metals such as bimetals and shape memory alloys can be used as detectors, and the night air conditioning time and early morning air conditioning time can be freely changed, and each set temperature can be changed. The device of the present invention can be modified in various ways, such as by making it adjustable.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing one embodiment of the present invention;
The figure is a circuit diagram thereof, and FIG. 3 is a diagram illustrating changes in outlet temperature during night air conditioning time and early morning air conditioning time. 2... Heat storage tank, 3... Duct, 5... Timer device, 6... Detector, 11, 13... Vent, 1
4...Detector, 15...Control device, A...Night air conditioning time, B...Early morning air conditioning time, C...Solar heat collector, F1...Fan.

Claims (1)

[Claims] 1. In addition to installing a fan in the duct leading from the heat storage tank of the house to the room to ventilate the warm air from the heat storage tank into the room, it is also installed during the night air conditioning time when heating is required at night, etc. and during the early morning air conditioning time when heating is required in the early morning. A timer device that can operate the fan, and a detector that detects the temperature of the air blown out from the heat storage tank and stops the operation of the fan until the early morning air conditioning time when the blown air temperature falls below a predetermined temperature during the night air conditioning time. Heat storage tank device.