JP3536982B2 - Vertical heat pump air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a vertical heat pump air conditioner.

[0002]

2. Description of the Related Art Conventionally, an air conditioner using cold and hot water has required a heat source for cold and hot water, a total heat exchanger, and the like.

[0003]

[0007] Therefore, it is bulky and the installation place is limited, it is difficult to install it indoors, and the equipment cost is high. Then, it aims at providing the vertical heat pump type air conditioner which solves these problems.

[0004]

To achieve the above object, a vertical heat pump air conditioner according to the present invention is provided with a U-shaped exhaust air passage provided with a condenser and an evaporator in a casing. U-shaped outside air blowing path, and a refrigerant circulation circuit, and the exhaust air path and the outside air blowing path are adjacent to each other so as to trace a U-shape, and the refrigerant circulation circuit is an exhaust air path and It was provided so as to extend over the air passage for outside air, and was provided so that it could be taken out and stored in the casing. Further, the air blowing direction of the exhaust air path and the air blowing path for the outside air are made the same, and devices such as a blower and a refrigerant circulation circuit C are arranged on one of the leeward side and the leeward side of the reversal part of both the air paths. And the other was only an air duct. Further, the refrigerant circulation circuit is fixed to a frame detachably mounted in the casing, and an opening for inserting and removing the frame with the refrigerant circulation circuit is formed in the casing. It was covered with a plate. Further, a slide mechanism for taking the frame with the refrigerant circulation circuit into and out of the casing is provided. Further, the fin tubes of the condenser and the evaporator were made elliptical tubes.

[0005]

1 to 5 show one embodiment of a vertical heat pump type air conditioner according to the present invention. This air conditioner has a U-shape in which a condenser 2 is provided in a casing 1. , A U-shaped outside air blowing path B provided with an evaporator 3, and a refrigerant circulation circuit C. The refrigerant circulation circuit C including the condenser 2, the evaporator 3, the compressor 4, and the like also has a receiver (not shown), an expansion valve, a switching valve for circulating the refrigerant, and the like. And heat radiation can be switched freely.

The refrigerant circulation circuit C is provided so as to extend over the exhaust air passage A and the outside air air passage B, and is provided so as to be able to be taken out and stored in the casing 1 (as indicated by a solid line and a virtual line). Specifically, the refrigerant circuit C is fixed to a frame 5 which is detachably mounted in the casing 1, and an opening 6 for inserting and removing the frame 5 with the refrigerant circuit C is formed in the casing 1. The opening 6 is covered with a detachable or openable / closable exterior plate 7, and a slide mechanism for taking the frame 5 with the refrigerant circuit C into and out of the casing 1 is provided. The slide mechanism may be configured by, for example, providing a plurality of wheels on the frame 5 and providing rails for guiding the wheels on the casing 1, and the configuration may be freely changed. In addition, the refrigerant circulation circuit C may be provided so as to be able to be taken out and stored in a configuration other than the illustrated example.

The exhaust air path A and the external air path B are adjacent to each other so as to follow a U-shape (so that the top and bottom are aligned and overlap each other), and the exhaust air path A and the external air Equipment such as a blower and a refrigerant circulation circuit C (compressor 4, condenser 2 and evaporator 3) on the one of the leeward side and the leeward side of the reversal part of both the ventilation paths A and B with the same blowing direction. The casings 1 are arranged in order in the blowing direction, and the other is formed only in the blowing path, and the casing 1 is formed in a vertically long shape to reduce the width.

[0008] A push-type blower 15 and a blower 14, a condenser 2 and an evaporator 3 are provided adjacent to each other in the exhaust air passage A and the outside air blow passage B, respectively, so that the volume occupied in the refrigerant circulation circuit C is provided. And minimize. Further, the blower 15, the blower 14, and the compressor 4 are arranged on the windward side of the condenser 2 and the evaporator 3, so that the temperature of the blown air due to the heat generation of the equipment is eliminated. A humidifier 9 is provided in the outside air blowing path B. The exhaust air path A and the outside air air path B may be defined by a partition plate or the like, and the partition plate disposed between the refrigerant circulation circuits C may be provided on either side of the frame 5 or the casing 1. The air blow direction is indicated by solid and dotted outline arrows. A drain pan is provided below the condenser 2 and the evaporator 3. Condenser 2 and evaporator 3
The fin tube 8 is preferably an elliptical tube (see FIG. 4), but may be a circular tube.

The casing 1 is formed with an outside air inlet 10, an air inlet 11, a return air inlet 12, and an exhaust port 13, and the outside air inlet 10 and the air inlet 11 are connected to each other through an air passage B for the outside air. Then, the return air inlet 12 and the exhaust port 13 are communicatively connected to each other through an exhaust air passage A. The return air inlet 12 is connected to the indoor through a duct, a suction port and the like, and the air supply port 11 is connected to the indoor through a duct and an outlet.

In this vertical heat pump type air conditioner, the outside air taken in from the outside air inlet 10 is heat-exchanged by the evaporator 3 and, if necessary, the humidifier 9 is operated to supply air from the air supply port 11 and simultaneously return the air. The circulating refrigerant in the condenser 2 is exchanged with the return air (exhaust air from the inside) taken in from the air intake port 12 to absorb or radiate heat, and is exhausted to the outside from the exhaust port 13. In this way, the heat exchange load of the condenser 2 can be reduced by using the exhaust heat, and the effect as if using the total heat exchanger can be obtained in the condenser 2. In addition, when performing the outdoor air cooling operation or the ventilation operation, the compressor 4 may be stopped.

It is to be noted that the air conditioner of each of the above embodiments can be used as an outside air processing air conditioner, and the installation location can be freely changed.

[0012]

According to the first aspect of the present invention, the air conditioner has a simple structure and is easy to manufacture. No separate heat source for cold and hot water is required. Since the condenser can be operated using exhaust heat from indoors, the heat exchange capacity is high and the refrigerant circulation circuit can be downsized to save energy, eliminating the need for extra parts such as a total heat exchanger.
The entire air conditioner can be made compact, installation space can be reduced, and equipment and running costs can be reduced. One vertical heat pump type air conditioner can perform an outside air treatment cooling / heating operation, an outside air cooling operation, and a ventilation operation, and does not require a separate air treatment air conditioner or the like. Only the refrigerant circulation circuit is taken out of the casing without removing the entire casing, so that the refrigerant recovery operation and maintenance can be easily performed, and installation and storage are not troublesome. Further, by replacing only the refrigerant circuit, the cost can be reduced at the time of renewal.
Since the air circulation path for exhaust and the air circulation path for outside air are adjacent to each other and the refrigerant circulation circuit is provided so as to straddle the air circulation path, the refrigerant circulation circuit becomes compact. The exhaust air passage and the outside air air passage are U-shaped and are adjacent to each other so as to follow the U-shape. Therefore, the width can be reduced, and the air-blowing distance can be increased without increasing the bulk of the air conditioner, resulting in noise. It has a large energy attenuation and low noise, and can be easily installed near the room. According to the invention of claim 2, since equipment such as a blower and a refrigerant circulation circuit is collected on one of the leeward side and the leeward side of the reversing portion of the two air passages, only the outer surface of the casing corresponding to the one is provided. Even if it is surrounded by obstacles such as walls, the equipment can be easily taken out and stored in the casing 1, the workability of maintenance is good, and the installation place is not limited. According to the third aspect of the present invention, since the refrigerant circulation circuit is integrated with the frame, there is no trouble in taking out and storing, and the workability is good.
According to the invention of claim 4, the frame with the refrigerant circulation circuit can be easily taken out and stored by the slide mechanism. According to the invention of claim 5, even when used at a high wind speed, the pressure loss does not increase and the heat exchange capacity does not decrease, so that a small-sized evaporator and condenser can be used, and the air conditioner can be made much more compact. At normal wind speeds, pressure loss is reduced and heat exchange efficiency is improved, so that a small blower can be used and noise can be reduced.

[Brief description of the drawings]

FIG. 1 is a front sectional view showing an embodiment of the present invention.

FIG. 2 is a side sectional view of FIG.

FIG. 3 is a perspective view.

FIG. 4 is a sectional view of a fin tube group.

[Explanation of symbols]

1 casing 2 condenser 3 Evaporator 5 frames 6 opening 7 Exterior plate 8 Fin tube A Exhaust air duct B Blower path for outside air C refrigerant circuit

──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-5-149580 (JP, A) JP-A-4-306429 (JP, A) JP-A-61-1939 (JP, A) JP-A-57-1979 188946 (JP, A) JP-A-8-312994 (JP, A) JP-A-61-191892 (JP, A) JP-A-2002-364874 (JP, A) JP-A-63-22527 (JP, U) Kaisho 49-14346 (JP, U) Jikken 47-17167 (JP, Y1) (58) Field surveyed (Int. Cl. ⁷ , DB name) F24F 1/02 331

Claims (5)

(57) [Claims] 1. A casing having a condenser provided in a casing.
And a U-shaped outside air blowing path B provided with an evaporator 3 and a refrigerant circuit C. The exhausting air path A and the outside air blowing path B are And a refrigerant circuit C is provided so as to extend across the exhaust air passage A and the outside air air passage B, and is provided so as to be freely taken out and stored in the casing 1. Type air conditioner. 2. An exhaust air passage A and an outside air air passage B have the same air blowing direction, and a blower or a refrigerant circulation circuit is provided on one of a leeward side and an leeward side of a reversal part of both the air passages A and B. The vertical heat pump air conditioner according to claim 1, wherein devices such as C are arranged, and the other is provided only with an air passage. 3. A refrigerant circulation circuit C is fixed to a frame 5 detachably mounted in the casing 1, and an opening 6 for inserting and removing the frame 5 with the refrigerant circulation circuit C is formed in the casing 1. The vertical heat pump air conditioner according to claim 1 or 2, wherein the opening (6) is covered with a detachable or openable / closable exterior plate (7). 4. The vertical heat pump type air conditioner according to claim 3, further comprising a slide mechanism for moving the frame 5 with the refrigerant circuit C into and out of the casing 1. 5. A vertical heat pump type air conditioner according to claim 1, wherein the fin tubes 8 of the condenser 2 and the evaporator 3 are elliptical tubes.