JPH0759994B2 - Floor-mounted air conditioner - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a floor-mounted air conditioner for measuring air conditioning and ventilation in a highly airtight and highly insulated house.

[Prior Art] As an air conditioner for air-conditioning a highly airtight and highly heat-insulated house that has a highly airtight and well-insulated construction, for example, as disclosed in JP-A-63-180026. There is something. As shown in FIGS. 7 and 8, this device has a configuration in which a fan coil unit 30, a heat exchange ventilation device 31, and a heat source device 32 are functionally connected to each other.
The fan coil unit 30 has a structure in which a cooling / heating coil 34 that performs a cooling or heating function by conduction of a heat medium is provided on each blowout side of two independent blowers 33, and is installed in a space above the ceiling in a house or the like. The heat exchange ventilator 31 includes a blower that sucks indoor air and a blower that sucks outdoor air, and supplies the outdoor air and the indoor air through the heat exchange element 35 and exhausts the air. The heat source device 32 is, for example, a cold / hot water generator, and is configured to generate a cooling heat medium or a heating heat medium in the cooling / heating coil 34 of the fan coil unit 30 to make it conductive.

Cooling or heating is performed by operating the heat source unit 32 and the fan coil unit 30. The air flow cooled or heated by one of the fans 33 of the fan coil unit 30 is supplied to the duct 36.
Is supplied to the room on the second floor in the house, for example, and the air flow cooled or heated by the other fan 33 is supplied to the room on the first floor in the house by another duct 36. A pressure gradient is set such that the pressure gradually decreases from the room to which the cooled or heated air is supplied toward the installation location of the fan coil unit 30, and the air flow goes around each room and the suction side of the fan coil unit 30. And is sucked into the fan coil unit 30 again and circulates in the house. Ventilation is performed by operating the heat exchange ventilation device 31, exhausting indoor air to the outside and supplying outdoor air to the room. The ventilation by the supply / exhaust is performed through the heat exchange element 35 so that the state quantities such as the temperature and the humidity in the room do not largely change even by the ventilation.

[Problems to be Solved by the Invention] In the above-described conventional air conditioner, the fan coil unit 30 and the heat exchange ventilation device 31 are independent of each other, and when the effective air conditioning of the entire house is measured, the installation positional relationship between them is This is often a problem, and there is a problem that it is difficult to configure a system that measures the effective air conditioning of the entire house. In addition, most of the fan coil units 30 are installed on the ceiling, and maintenance cannot be performed as expected in a general house.Moreover, there is a problem in that installation requires an inspection port on the structure side of the house, which increases costs. Contains.

The present invention has been made to solve such conventional problems, and an object of the present invention is to obtain a floor-installed air conditioner that is easy to install and has good maintainability and is capable of effective air conditioning of the entire house. It is a thing.

[Means for Solving the Problem] A floor-installed air conditioner according to the present invention is configured such that a heat medium from a heat source device is introduced into a main body casing that is box-shaped and can be placed on an installation plane such as a floor of a building. By incorporating a cooling and heating coil that fulfills the cooling or heating function, a device for cooling and heating by a blower for circulation, and a heat exchanger for heat exchange ventilation into a unit, the air duct system and heat for creating a cooling and heating atmosphere An air passage system for performing exchange ventilation is configured inside the main body casing, and the air supply inlet, which is the intake of outdoor air, has the outlet side of the air supply blower that sucks the outdoor air The suction side of an exhaust blower for exhausting air to the outside is connected to the exhaust outlet, which is the outlet.

Further, each of the intake air inlet, the intake air outlet, the indoor air intake inlet, and the exhaust outlet is provided at the top of the main body casing.

[Operation] In the present invention, for example, by simply placing the unit on a floor in a suitable place such as a room in a house where air is easily polluted or its vicinity,
Effective air conditioning of the house is possible, and the air supply after heat exchange and the indoor circulating air can be combined and converted with a large air volume, so the cooling and heating coil can be made small, facility construction and maintenance are easy, and it is easy to use It becomes a good air conditioner.

Further, since all the ports connected to the duct are concentrated on the top of the main body casing, installation work and maintenance can be efficiently and easily performed.

[Embodiment] All of FIGS. 1 to 4 show an embodiment of the present invention. FIG. 1 is a perspective view of a floor-mounted air conditioner, FIG. 2 is a side view thereof, and FIG. Is a plan view and FIG. 4 is a system configuration diagram showing application to a house. The main body 1 of this floor-installed air conditioner is of a cabinet type and is mounted on a stand 2. A duct cover 3 is provided above the front of the main body 1.
Is provided. The main body casing 4 forming the outer shell of the main body 1 is basically configured in a box shape that can be placed on an installation plane such as a floor of a building without the pedestal 2. A first air passage 8 having a supply air inlet 6 as a start end and a supply air outlet 7 as a end, which allows outdoor (mostly outdoor) air, that is, the outside air, to pass through the main body casing 4 through the duct 5. And the second air passage 11 having the indoor air intake 9 as the start end and the exhaust outlet 10 connected to the outside via the duct 5 as the end is independently configured. Part of the middle of the first air passage 8 and the second air passage 11 is configured so that heat can be exchanged by each air passage of the heat exchanger 12 incorporated in the main body casing 4. This heat exchanger
A cooling / heating coil 13 that forms cooling air or heating air by the conduction of the cooling heat medium or the conduction of the heating heat medium is interposed in the first air passage 8 downstream of 12. In the first air passage 8 near the air supply outlet 7 further downstream from the cooling / heating coil 13, two circulation fans 14 for forming an air flow in the first air passage 8 are provided in parallel. There is. The first air passage 8 on the suction side of the two circulation fans 14 is bifurcated, and the outlet side is connected to the two individual air supply outlets 7 provided side by side. That is, the first air passage 8 is divided into two systems on the outlet side. Further, the heat exchanger 12 and the heating / cooling coil in the first air passage 8
One end of the third air passage 15 that opens into the front surface of the main body 1 is connected to the other end of the third air passage 15. All the outlet ends and inlet ends of the ventilation system other than the third air passage 15, that is, the intake air inlet 6 and the two intake air outlets 7
As shown in FIG. 3, the indoor air intake 9 and the exhaust outlet 10 are collectively arranged on the top of the main body casing 4. More specifically, the exhaust air outlet 10 and the intake air intake 6 are arranged side by side in front and back on one side of the top, and the two air supply outlets 7 are arranged side by side in front of the top. The indoor air intake 9 is disposed between the two air supply outlets 7 near the rear of the ceiling. Therefore, the air intake 6 of the first air passage 8
The path 8a from the heat exchanger 12 to the heat exchanger 12 and the path 11a from the heat exchanger 12 of the second air passage 11 to the exhaust outlet 10 are parallel to the rear side and the front side at one side of the main body 1. Two air supply outlets 7 are arranged in a vertical direction from the heat exchanger 12 in the first air passage 8
And a path from the indoor air intake 9 of the second air passage 11 to the heat exchanger 12 are formed in the longitudinal direction on the front surface of the main body 1 in parallel with the front side and the back side. ing. A blower side of a supply air blower 16 that sucks outside air is connected to a supply air intake 6 of the first air passage 8 by a duct 5. A suction side of an exhaust blower 17 that sucks indoor air to the outside of the room is connected to the exhaust outlet 10 of the second air passage 11 by a duct 5. Further, the duct 5 is connected to each of the two air supply outlets 7 and the indoor air intake 9 to form an air conditioning system including a housing structure as shown in FIG.

The top of the main body 1 is covered with a detachable duct cover 3 attached to the front. The gantry 2 on which the main body 1 is mounted has a storage unit for installing the heat source unit 18, and the heat source unit 18 for heating the heat medium to be sent to the cooling / heating coil 13 is incorporated in this storage unit. The heat source unit 18 is FF when configuring a heating-only system.
A hot water boiler 18a or the like equipped with a combustor is acceptable, but when configuring an air conditioning system, a hot water boiler is used as the heat source unit 18.
A cooling unit 18b is installed in addition to 18a, and the hot water boiler 18a and the cooling unit 18b are connected to the heating / cooling coil 13 by piping. The heat source unit 18 may be an outdoor unit of a heat pump. In the figure, 19 is a drain receiver arranged below the heat exchanger 12, and 20 is an air filter.

The floor-installed air conditioner having the above-mentioned configuration is installed on the floor in a room where the air is easily polluted in the house or in the vicinity thereof, or on the installation plane of the sanitary room L ₁ having high air cleanliness as shown in FIG. 4, for example. By using duct piping and heat medium piping, it is possible to effectively air-condition the whole house, and except for duct piping, there is no need for ceiling construction for installation, and facility construction is simple. In addition, maintenance can be carried out easily and it is easy to use.

Cooling or heating is performed by operating the heat source device 18, the cooling / heating coil 13, and the circulation blower 14. That is, the circulation blower 14
By the operation, the air flow is formed in a part of the first air passage 8 and the third air passage 15, and the air flow that passes through the cooling / heating coil 13 and becomes the cooling air or the heating air is supplied to each air supply outlet 7 Are blown out through the duct 5 into the room L ₂ of the house. There is a pressure gradient such that the pressure gradually decreases from the room L ₂ to which the cooled or heated air is supplied toward the installation location of the floor-mounted air conditioner, and the air that flows through the room L ₂ is opened in the front. It is sucked into the third air passage 15 from the circulating air intake 21 and circulates in the house. For ventilation, exhaust blower 17 and air supply blower
16 is operated, part of the indoor air is exhausted to the outside by the second air passage 11, and the outdoor air is passed through the first air passage 8 to the rooms L ₂ , L
It is implemented by supplying ₁ . Ventilation by this air supply / exhaust is a heat exchanger 12 incorporated in the main body 1 so that the state quantities such as the temperature and humidity in the room do not fluctuate due to ventilation.
Done through. The two circulation fans 14 can be operated individually, and the air conditioning operation can be performed only in the room L ₂ that requires air conditioning. When the open end of the duct 5 connected to the indoor air intake 9 is easily polluted with air in the house, for example, in a kitchen, this room becomes a negative pressure, so that efficient energy-saving differential pressure ventilation can be implemented. If it is installed in the sanitary room L ₁ with high cleanliness of air as shown in FIG. 4, cooling air or heating air with high cleanliness can be circulated and supplied to each room L ₂ . Structurally, the first air passage 8 and the third air passage 15 merge in front of the cooling / heating coil 13, and heat can be exchanged with a large amount of air, which is advantageous in that the cooling / heating coil 13 can be made small.
Further, since the two circulation fans 14 are provided in parallel, it is possible to perform air conditioning system by system, and it is easier to reduce the size of the entire system by using one large blower. Further, since all the outlet ends and the inlet ends of the ventilation system other than the third air passage 15 are collectively arranged in the top portion of the main body casing 4, the duct piping is easy to put together and the appearance is improved. .

Fig. 5 and Fig. 6 show application examples of floor-mounted air conditioners, respectively. In Fig. 5, the duct 5 between the exhaust outlet 10 and the exhaust blower 17 is accompanied by odor such as toilet. The duct 5a connected to the place is connected to exhaust air containing odor without passing through the main body 1. Further, FIG. 6 shows that the air flow from the air supply outlet 7 is introduced into the plenum chamber 22 and the multi-system duct 5b is connected to the plenum chamber 22 so that the air conditioning system on the second floor and the air conditioning system on the first floor are connected. It can be configured. In FIG. 6, 23 is a damper and 24 is an air supply bypass.

[Effects of the Invention] As is apparent from the description of the embodiments above, according to the present invention, effective installation of a house can be achieved simply by placing it on the floor in a suitable place such as a room where air is easily polluted or its vicinity. Air conditioning is possible, facility construction is easy, and an easy-to-use air conditioner with easy maintenance can be obtained. In particular, the first air passage, which is the air supply air passage, and the third air passage, which is the circulation air passage, merge in front of the cooling and heating coil, and heat can be exchanged with a large amount of air, so that the cooling and heating coil can be made smaller.

Further, since all the ports connected to the duct are concentrated on the top of the main body casing, there is an effect that installation work and maintenance can be performed efficiently and easily.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing the construction of a floor-installed air conditioner as an embodiment of the present invention, FIG. 2 is a side view of the same, and FIG. 3 is a plan view of the same. FIG. 4 is a system configuration diagram showing the same application example, FIGS. 5 and 6 are configuration diagrams showing other application examples of the floor-mounted air conditioner, and FIGS. 7 and 8 are conventional examples. It is a block diagram of an air conditioner, and a system block diagram. In the figure, 1 is a main body, 4 is a main body casing,
5 is a duct, 6 is a supply air inlet, 7 is a supply air outlet, 8 is a first air passage, 9 is an indoor air intake, 10 is an exhaust outlet, 11 is a second
An air passage, 12 is a heat exchanger, 13 is a cooling / heating coil, 14 is a circulation fan, 15 is a third air passage, 16 is an air supply blower, 17 is an exhaust air blower, and 21 is a circulating air intake. The same reference numerals in the drawings indicate the same or corresponding parts.

Claims (2)

[Claims] Claims: 1. A main body casing having a box shape and capable of being placed on an installation plane such as a floor surface of a building, having a start point of a supply air inlet for passing outdoor air sent through a duct, and a supply air outlet. And a second air passage having an indoor air intake as a starting end and an exhaust outlet communicating with the outside through a duct as an end, independently of each other. The middle of the two air passages is constituted by a heat exchanger incorporated in the main body casing to enable heat exchange between the air streams flowing through both air passages, and the above-mentioned air supply outlet side of the heat exchangers. A cooling / heating coil for cooling or heating is provided in the first air passage by conduction of a heat medium from a heat source device, and the first air passage is provided in the first air passage further on the air supply outlet side than the cooling / heating coil. An air blower for circulation that forms an air flow is provided in the heat exchanger and the cooling and heating coil. The third air passage for taking in the indoor air is connected to the first air passage, and the blow-out side of the air blower for sucking the outdoor air is connected to the second air passage at the air intake inlet of the first air passage. A floor-installed air conditioner characterized in that the intake side of an exhaust blower for exhausting air to the outside is connected to the exhaust outlet of the air passage. 2. The floor according to claim 1, wherein each of the intake air inlet, the intake air outlet, the indoor air intake inlet, and the exhaust outlet is provided at the top of the main body casing. Stationary air conditioner.