JPH0712426A - Heat source device for air conditioning - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a heat source device for cooling and heating, which prevents backflow of exhaust gas to the stop side combustion device. [Structure] A heating combustion device 3 and a cooling combustion device 2 are respectively provided, and a blowing device 8 for the combustion air supplied to the heating and cooling combustion devices is shared, and one combustion device is provided. By blowing the air that is blown when the gas is burned to the other combustion device that is the stop side,
Do not allow combustion exhaust gas to flow back to the stop side combustion device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling / heating heat source device using a cooling / heating combustion device as a heat source.

[0002]

2. Description of the Related Art Generally, in a home-use absorption refrigeration system including a regenerator, an absorber, a condenser, an evaporator, etc. using a gas combustion device as a heat source, size, cost and weight are important factors. Although there are restrictions on installation space, carry-in, installation, etc., conventional gas combustion equipment with a blower for cooling and combustion equipment of this type of absorption refrigeration system It has a configuration with. Further, in this case, as shown in FIG. 12, an exhaust stack c derived from the cooling combustion device b arranged in the lower part of the regenerator a and a heating combustion device arranged in the lower part of the heating heat exchanger d. Exhaust stack f derived from e
Are combined as a double structure so as to face the outer exhaust top g, and the combustion air blowers h and j are installed in parallel under the cooling combustion device b and the heating combustion device e, respectively. I am trying.

[0003]

However, in the heat source device for cooling and heating provided with the dedicated combustion device for cooling and heating as described above, the cooling combustion device is activated and the heating combustion device is stopped in the cooling operation. Therefore, in the heating operation, the heating combustion device is operated and the cooling combustion device is stopped.
That is, since the heat source is a one-sided use that uses a combustion device only for cooling during cooling and only for heating during heating, the other combustion device is not in use during that time, so not only is it useless, but the most problematic However, since the outlets of the exhaust pipes c and f are close to each other due to the double structure, the suction resistance of the fan is stronger than the resistance of the exhaust top g, and the exhaust gas once discharged to other exhaust pipes. Backflow occurs, and moisture in the exhaust gas causes condensation in the unused combustion device, causing rust and other defects in the parts.

In view of the above-mentioned circumstances, the present invention allows the blowing air from the combustion air blowing device used for the cooling combustion device and the heating combustion device to be constantly sent to both the combustion devices, so that the combustion device is not used. It is an object of the present invention to provide a heat source device for cooling and heating, which prevents backflow of the exhaust gas.

[0005]

SUMMARY OF THE INVENTION The present invention includes a heating combustion device and a cooling combustion device, respectively, and shares a blowing device for the combustion air supplied to the heating and cooling combustion devices. It is a thing.

[0006] Further, a heating combustion device and a cooling combustion device are respectively provided, and even during cooling, the air blowing device for the combustion air of the heating combustion device is rotated to burn the exhaust gas during cooling for heating. It is designed so that it does not flow back into the device.

Further, the heating combustor and the cooling combustor are respectively provided, and the exhaust cylinders arranged in the respective combustors have a double structure, and the exhaust top facing the tip of the exhaust cylinder is cooled. A partition plate is installed to shift the outlets of the exhaust gas and the heating exhaust gas so that one exhaust gas does not flow back to the other stop side combustion device.

[0008]

As described above, in the cooling / heating heat source device using the gas combustion device as the heat source, the combustion air supplied to the cooling combustion device for heating the regenerator during cooling operation is supplied to the cooling and heating devices. The exhaust gas that flows out through the cooling combustion device flows out from the same exhaust stack to the exhaust top by sending air from the common air supply system to both sides at the same time. Since the air blown from the combustion device flows, backflow of the exhaust gas to the heating exhaust stack is prevented.

Further, in the case where the cooling combustion device and the heating combustion device are each provided with a dedicated air blower, at the same time as the air is blown to the cooling burner during the cooling operation, the air is blown from the heating burner. By blowing air from the device, the exhaust gas and the blown air flow out from both of the exhaust tubes in the same manner as described above, so that backflow of the exhaust gas to the stop side exhaust tubes is prevented.

Further, in the cooling exhaust pipe and the heating exhaust pipe facing the exhaust top, the partition plate is arranged in front of the exhaust pipe opening of one (the heating exhaust pipe), and the other exhaust pipe (the cooling exhaust pipe) is exhausted. The exhaust gas is prevented from flowing back to the one exhaust stack.

[0011]

The present invention will be described below with reference to the drawings of the embodiments.

FIGS. 1 to 5 show an absorption refrigerating apparatus provided with a heat source device for cooling and heating in which a single air blower is used as the air blower used in the cooling combustion device and the heating combustion device. Figure 1
In FIG. 1, reference numeral 1 denotes a regenerator having a gas combustion heat source combustion device 2 arranged at a lower portion thereof, and a heating hot water heat exchanger 4 having a heating combustion device 3 arranged at a lower portion thereof in parallel with the regenerator 1. The exhaust stack 5 of the cooling combustion device 2 and the heating combustion device 3 are arranged.
Of the exhaust tube 6 has a parallel two-layer structure, and the tip is connected to an exhaust top 7 that faces the outside, and air is supplied to the cooling combustion device 2 and the heating combustion device 3. 8 is a common type in which one is arranged. Further, in FIG. 2, 9 is a condenser communicating with the upper part of the regenerator 1,
A refrigerant pipe 10 shown in the figure connected to the condenser 9 is connected to a refrigerant tank 11 so that the refrigerant liquid once accumulated in the refrigerant tank 11 is guided to an evaporator 12 and dispersed. An absorber 13 communicates with the evaporator 12, and the absorber 13 includes a regenerator 1
The concentrated liquid pipe 14 separately connected from the above is connected to spray the concentrated liquid so as to absorb the refrigerant vapor, and the diluted liquid (solution) obtained in the absorber 13 is introduced into the solution tank 15 and regenerated through the diluted liquid pipe 16. A circulation path for returning to the vessel 1 is formed, and an absorption type refrigeration system is constructed with the entire configuration thereof.

Explaining this action, first, in the cooling operation of the absorption refrigeration system which is an absorption refrigeration cycle, the solution of the regenerator 1 is boiled by heating the combustion device 2 which is a gas combustion burner as a heat source. The concentrated liquid and the refrigerant vapor are separated, and the rising refrigerant vapor is guided to the condenser 9 to be condensed into a liquid refrigerant.

In this case, the combustion air is supplied to the cooling combustion device 2 by the common (single) blower device 8 shown in FIG. 1, which also supplies the combustion air to the heating combustion device 3. As shown in FIGS. 3 to 5, this blower device 8 is connected to a feed port 8d of a flow dividing housing 8a provided with two blower ports 8b and 8c facing both combustion devices 2 and 3. .

The exhaust gas that has been blown into the cooling combustion device 2 and burned is discharged to the exhaust stack 5 facing the exhaust top 7. At this time, the air blown from the air blower 8 also flows to the heating combustion device 3 on the stop side, and is similarly discharged to the exhaust top 7 via the exhaust pipe 6. Therefore, the exhaust gas from the cooling exhaust pipe 5 does not flow back to the heating exhaust pipe 6.

Here, the refrigerant vapor from the regenerator 1 is fed as a liquid refrigerant in the condenser 9 to the refrigerant tank 11 and temporarily stored therein, and the refrigerant liquid from the refrigerant tank 11 is sprayed by the refrigerant pump 17 in the evaporator 12. The heat transfer pipe 19 for cold water pipe inside is cooled by using the latent heat of vaporization of the refrigerant liquid.
This cold water is guided to the indoor unit 20 for cooling. On the other hand, the refrigerant vapor evaporated in the evaporator 12 communicates with the absorber 13
The refrigerant vapor flows to the absorber 13, and the concentrated liquid introduced from the regenerator 1 that is sprayed to the absorber 13 is dispersed and absorbed by the concentrated liquid dispersion pipe 21 and is collected as a dilute liquid in the solution tank 15. The dilute liquid is pumped by the solution pump. At 22, the solution is returned to the regenerator 1 to circulate the solution. In the figure, 23 is a solution heat exchanger.

FIG. 6 shows another embodiment in which the cooling combustion device and the heating combustion device are respectively provided with dedicated blowers. In the case where the cooling combustion device 2 is provided with the air blower 8A and the heating combustion device 3 is provided with the air blower 8B as described above, for example, both the air blowers 8A and 8B are simultaneously driven during the cooling operation. Air is sent to the device 2 and the heating combustion device 3, and at the same time, the regenerator 1 is heated by performing gas combustion only by the cooling combustion device 2. That is, since the air is also sent to the air blower 8B on the side that does not burn gas, the exhaust gas flows out from the exhaust pipe 5 and also from the exhaust exhaust pipe 6 for heating. There is no backflow.

In addition, the one shown in FIGS. 7 to 11 is also provided with a blower device dedicated to each of the cooling combustion device and the heating combustion device, and a backflow preventing partition plate is attached in front of one of the exhaust pipes. An example is shown. In this case, the structure of the exhaust top 7 having a double structure is such that the tip end of the cooling exhaust pipe 5 is penetrated to the upper part of the insertion port 24 provided in the dish-frame-type rear top main body 7a, and the exhaust end of the exhaust pipe 5 is exhausted. The mouth 5a is placed in front of the dish frame type rear top body 7a. Also, the dish frame type front top body 7
A semi-cutout type insertion port 25 is provided in the upper part of b, and the front end exhaust port 5a of the exhaust pipe 5 is made to face the insertion port 25. Further, the lower portion of the insertion port 25 is used as a backflow prevention partition plate 26, while the tip end exhaust port 6a of the heating exhaust pipe 6 is made to face the lower part of the insertion port 24 of the dish frame type rear top main body 7a. The dish top 7c is arranged at the front position of the dish frame type front top body 7b. That is, the tip exhaust port 5 of the cooling exhaust pipe 5
a is set at a position where the tip exhaust port 6a of the heating exhaust tube 6 is displaced, and the partition plate 26 is positioned in front of the tip exhaust port 6a of the heating exhaust tube 6 at a predetermined distance. Reference numeral 27 denotes ventilation holes formed in the frame portions of the dish frame type rear top body 7a and the dish frame type front top body 7b.

Therefore, for example, during cooling operation, the regenerator 1 is heated by operating the combustion device 2 to boil the solution to separate it into a refrigerant vapor and a concentrated liquid. At this time, the combustion air is supplied to the combustion device 2. This is performed by driving the dedicated blower 8A. Therefore, the exhaust gas passes through the cooling exhaust pipe 5 and the dish-frame-type rear top body 7a, and reaches the front dish-frame-type front top body 7b.
Flowing out from the front end exhaust port 5a, and is discharged outward (in the atmosphere) from the vent holes 27 provided in the upper and lower frames of the dish frame type front top body 7b. In this case, the front end exhaust port 6a of the heating exhaust cylinder 6 on the stop side faces the inside of the backflow prevention partition plate 26 formed at the lower end portion of the dish-frame-type front top body 7b, and serves as a discharge path for the cooling exhaust gas. On the other hand, since it has a kind of shielding plate configuration, the cooling exhaust gas flowing in the vertical direction does not flow back to the heating exhaust pipe 6 side around the backflow prevention partition plate 26. Of course, if necessary, the air blower 8A for cooling is driven at the same time as the air blower 8A for cooling is driven as in the above embodiment.
It is more preferable that the air is discharged from the front end exhaust port 6a of the heating exhaust pipe 6 by also driving.

[0020]

As described above, the heat source device for cooling and heating according to the present invention is of a common type in which the air blowing device for the cooling combustion device and the heating combustion device is a single air blowing device, and even in the combustion of one combustion device. Either the air is blown to both sides at the same time, or even if the cooling and heating combustors have their own air blowers, the air is blown at the same time, or both exhaust pipes are offset and a partition plate is combined to burn one side. Even if the gas combustion of the equipment is performed, the backflow of exhaust gas to the remaining combustion equipment on the stop side can be blocked, so that dew condensation does not occur on each component such as the combustion equipment on the stop side, the burner of the blower, the motor, etc., and malfunction occurs. Can be eliminated, and there is an effect that the overall defects can be reduced.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a heat source device for cooling and heating in which a cooling combustion device and a heating combustion device are provided in parallel according to an embodiment of the present invention.

FIG. 2 is a schematic diagram of an absorption refrigeration system including the heat source device.

FIG. 3 is a plan view of a shunt casing part of the common blower.

FIG. 4 is a front view of a distribution casing of the blower.

FIG. 5 is a rear view of the flow dividing casing of the blower.

FIG. 6 is an explanatory view showing another embodiment in which a cooling device and a heating device are provided with dedicated blowers.

FIG. 7 is an explanatory view showing another embodiment in which a dedicated air blower is provided for the cooling combustion device and the heating combustion device, and a partition plate is arranged on the exhaust top.

FIG. 8 is a front view of an exhaust top.

FIG. 9 is a cross-sectional plan view of the main part.

10 is a sectional view taken along line AA of FIG.

FIG. 11 is a sectional view taken along line BB in FIG.

FIG. 12 is an explanatory diagram showing the arrangement of a cooling combustion device and a heating combustion device of a conventional absorption refrigeration system.

[Explanation of symbols]

 1 Regenerator 2 Cooling Combustor 3 Heating Combustor 4 Hot Water Heat Exchanger 5 Exhaust Cylinder 5a Tip Exhaust Port 6 Exhaust Cylinder 6a Tip Exhaust Port 7 Exhaust Top 8 Blower 9 Condenser 12 Evaporator 13 Absorber 26 Partition Plate

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yukio Akita 2-18 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Inventor Takeshi Arai 2-18-18 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Machinery Co., Ltd. (72) Inventor Kiyoto Kobayashi 2-18 Keihan Hondori, Moriguchi City, Osaka Sanyo Electric Co., Ltd. (72) Katsuyuki Tsuno 2-18 Keihan Hondori, Moriguchi City, Osaka Sanyo Electric Co., Ltd. (72) Inventor Keiyo Kasahara 2-18 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Inventor Toshiki Takahashi 2-18-2 Keihanhondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd.

Claims (3)

[Claims] 1. A heat source for cooling and heating, comprising: a combustion device for heating; and a combustion device for cooling, respectively, and sharing a blowing device for combustion air supplied to the heating and cooling combustion devices. apparatus. 2. A combustion device for heating and a combustion device for cooling are provided respectively, and a blower for combustion air of the heating device for heating is rotated even during cooling, so that exhaust gas during cooling is burned for heating. A heat source device for cooling and heating, which does not flow back into the device. 3. A combustion device for heating and a combustion device for cooling are respectively provided, and an exhaust pipe portion provided in each combustion device has a double structure, and cooling is performed on an exhaust top facing a tip of the exhaust pipe portion. A heat source device for cooling and heating, which is equipped with a partition plate for shifting the outlets of the exhaust gas and the heating exhaust gas so that one exhaust gas does not flow back to the other stop side combustion device.