JPH0246877Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to an air circulation system for a drying room.
In particular, it relates to improvements in air exhaust passages in ventilation systems.

[Background technology and its problems]

BACKGROUND ART In recent years, a drying room has been provided in a part of a room, such as a bathroom, and various air circulation systems for this drying room have been considered.

This air circulation system generally employs a dryer equipped with a heat exchanger such as a heat pump. Such an air circulation system includes a blower path that sucks and circulates the air in the drying chamber, and a heat absorber and a heat radiator of a heat pump are placed in this air path, with the heat absorber on the upstream side. In addition to absorbing heat, this absorbed thermal energy is radiated from a radiator to the air in the air passage, and the air heated by this heat radiation is further heated by an electric heater, etc., and then returned to the drying room. Known (1987-
Publication No. 80992).

According to the above system, the heat pump's suction and radiator are placed in the ventilation path through which the circulating air from the drying room flows. However, a heating source such as an electric heater is required, which poses a problem in that energy saving cannot be achieved.

Therefore, from the perspective of energy conservation, it is conceivable to heat the drying room by introducing exhaust heat from a heating room such as the living room of a house into the drying room as external air, but the amount of heat supplied as exhaust heat is small. In order to keep the drying room at a high temperature, the problem is how to make the external air supplied to the drying room as high as possible, and how to reduce the amount of heat carried away by the air exhausted from the drying room. becomes.
In order to reduce the amount of heat dissipated by this exhaust air, it is possible to arrange a heat absorber of the heat pump in the flow path of the exhaust air to absorb heat. Therefore, a device with high heat absorption efficiency is desired.

[Purpose of invention]

The purpose of this invention is to raise the temperature of the drying chamber by increasing the heat absorption efficiency of the air discharged from the drying chamber and using the heat obtained by this heat absorption to heat the external air supplied to the drying chamber. The purpose is to provide an air circulation system for the drying room that can be maintained.

[Means and actions for solving problems]

Therefore, the present invention supplies external air such as high-temperature air from the living room to the drying room, absorbs heat from the air exhausted from the drying room through the heat absorber of the heat pump, and then discharges it outdoors. An air circulation system for a drying room that increases the thermal efficiency of the heat absorber by forming a passage through which a predetermined amount of the air after heat absorption passes through the heat absorber again, and The device is characterized in that it is disposed in an introduction path provided with a recirculation path for returning a part of the air after passing through the external air introduction path to the upstream side of the external air introduction path.

In other words, the present invention returns a desired amount of air after heat has been absorbed by the heat absorber to the intake side of the cooler, and combines this air with the air taken in from the drying room to reduce the amount of air to be heat exchanged. The objective is to achieve the above objective by securing a sufficient amount of heat to obtain a large amount of thermal energy, and applying this thermal energy to the external air supplied to the drying chamber to enable the supply of high-temperature air. .

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings.

FIG. 1 shows the overall configuration of an air circulation system for a drying room according to this embodiment. In this figure, a drying room 1 is provided as a dedicated room that defines a part of a house, and inside this drying room 1 there are 2 laundry items.
is hung. A ventilation device 4 is suspended on one side near the ceiling 3 of the drying chamber 1 for sucking air in the drying chamber 1 and discharging it outdoors. This ventilation device 4 opens on the drying room 1 side and
An intake port 5 for sucking the air inside, and a fan 6 that acts to draw air from the intake port 5.
, a heat absorber 9 of the heat pump 8 that absorbs heat and dehumidifies the air sent by the fan 6, and an exhaust pipe 10 that exhausts the air after it has been absorbed and dehumidified via the heat absorber 9 to the outdoors. Between this exhaust pipe 10 and the heat absorber 9, the heat absorption,
It includes a passage 11 that circulates a predetermined amount of dehumidified air toward the intake port 5, and a drain collector 12 that collects water produced when the heat absorber 9 dehumidifies the air.

A heater 13 , which is a radiator of the thermal energy absorbed by the heat absorber 9 , is disposed within an outside air introduction pipe 14 as an introduction path provided behind the ceiling 3 . The tip side of the duct 16 extending from the right end side in the figure of this outside air introduction pipe 14 is a blower for outside air that exchanges heat with the air in the living room, or a heat exchanger (not shown) that supplies warm air using the temperature of hot water in the hot water system. The air heated by the heat exchanger or the like can be introduced through the duct 16. One end of an intake pipe 18 is opened between this duct 16 and the heater 13, and the other end is connected to an opening 17 in the ceiling 3, whereby a part of the air in the drying chamber 1 is It is configured so that it can be sucked into the introduction tube 14. Further, a fan 19 is provided near the heater 13 of the introduction pipe 14 for blowing air from the drying chamber 1 taken in through the intake pipe 18 and external air sent from the duct 16 toward the heater 13 side. There is.
An air supply pipe 21 is connected to the left side of the outside air introduction pipe 14 in the drawing, and this air supply pipe 21 is connected to an opening 22 in the ceiling 3. Therefore, air heated by the heater 13 is supplied into the drying chamber 1 via the air pipe 21.

Note that numerals 24 and 25 in the figure represent the heat absorber 9 and heater 13 in the heat pump 8, respectively.
This is heat medium piping.

Next, the operation of this embodiment will be explained.

The humid air that circulates inside the drying chamber 1 is taken in through the intake port 5 by the rotation of the fan 6 in the ventilation device 4, and is sent to the heat absorber 9 of the heat pump 8. The air sent to this heat absorber 9 absorbs heat there, is cooled and dehumidified, and this cooled air is
The flow is divided into the exhaust pipe 10 and the passage 11. The air that has flowed into the exhaust pipe 10 is discharged outdoors and is passed through the passage 1.
1 is returned to the intake port 5 side of the ventilation device 4. The air returned here merges with the air in the drying chamber 1 taken in from the intake port 5, and then flows into the cooler 9.
The air is sent to the air, where it absorbs heat again, cools it, and dehumidifies it.

On the other hand, the thermal energy obtained by the heat absorption is radiated by the heater 13 of the heat pump 8 provided in the outside air introduction pipe 14, and due to this heat radiation,
The air taken in from the duct 16 and the intake pipe 18 and combined is heated. This heated high-temperature air is sent into the drying chamber 1 from the air pipe 21,
The laundry 2 is quickly dried by the action of this high temperature air.

According to this embodiment, the following effects can be obtained. After heat-exchanging the exhaust air from the drying chamber 1, instead of exhausting all of the heat-exchanged air, a predetermined amount is returned to the air inlet 5 side of the ventilation device 4 through the passage 11, and is returned to the drying chamber. Since the heat pump 18 is configured to be sent to the heat absorber 9 of the heat pump 18 again together with the exhaust air of the heat pump 1, a sufficient amount of air to be heat exchanged can be secured, and the heat absorption effect of the heat pump 8 can be dramatically improved. In other words, by circulating the exhaust air, almost 100% of the thermal energy that was previously wasted along with the exhaust air can be utilized. Therefore, since the amount of heat radiated from the heater 13 can be increased, the amount of heat dissipated from the air pipe 21 to the drying chamber 1 can be increased.
The temperature of the air supplied into the drying chamber 1 can be increased, and the inside of the drying chamber 1 can be maintained at a high temperature.
The drying efficiency within the drying chamber 1 can be improved. Furthermore, since the passage 11 can be formed with a simple structure, there is no risk of complicating the device.

In addition, the outside air introduction pipe 14 is provided with an intake pipe 18 for taking in air from the drying chamber 1, and is configured to merge with the air from the duct 16, so that the amount of air passing through the heater 13 increases. It is possible to effectively use the heat radiation energy from the
Also from this point of view, it is possible to increase the temperature inside the drying chamber 1.

Furthermore, in this embodiment, since a heat pump is employed as the heat exchanger, the heat efficiency is higher than that of an electric heater, etc., and energy saving can also be achieved. In addition, heat can be supplied economically without the problem of heat dissipation from piping, which occurs when hot water is used as a heat exchange method.

In addition, in the embodiment, the heater 13
An example has been described in which all of the air heated in is supplied into the drying chamber 1 via the air pipe 21.
For example, as shown in FIG. 2, an air return passage 27 as a recirculation path is formed between the heater 13 and the air pipe 21, and the air once warmed through this air return passage 27 is formed. A part of the fan 19
It may be returned to the side and heated again by the heater 13 of the heat pump 10.

With such a configuration, the temperature of the drying chamber air supplied from the air pipe 21 into the drying chamber 1 can be made higher, so that the drying efficiency of the drying chamber 1 can be further improved. can be added.

Furthermore, although the drying room 1 has been described as a dedicated independent room, a non-residential space such as a bathroom can also be used as the drying room.

[Effect of idea]

According to the present invention as described above, the heat absorption efficiency of the air discharged from the drying chamber can be increased, and the thermal energy obtained by this heat absorption can be used to heat the external air supplied to the drying chamber. This has the effect of providing an air circulation system for the drying room.

[Brief explanation of the drawing]

FIG. 1 is an overall configuration diagram showing one embodiment of an air circulation system for a drying room according to the present invention, and FIG. 2 is a sectional view showing a part of another embodiment of the present invention. 1... Drying room, 4... Ventilation system, 8... Heat pump, 9... Heat absorber, 11... Passage, 13...
Heater, 14... Outside air introduction pipe as an introduction path, 1
8...Intake pipe, 21...Air supply pipe, 27...Air return passage as a recirculation path.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) High-temperature air is supplied from the outside to the drying chamber, and the heat of the air discharged from the drying chamber is absorbed through the heat absorber of the heat pump, and then the cooled air is supplied. An air circulation system for a drying room that discharges air to the outdoors, the air circulation system forming a passage through which a predetermined amount of the air after absorbing heat passes through the heat absorber again, and passing through the heater of the heat pump. An air circulation system for a drying room, characterized in that the air circulation system for a drying chamber is disposed in an introduction path provided with a recirculation path for returning a part of the air after drying to the upstream side of the external air introduction path. (2) Utility Model Registration The air circulation system for a drying room according to claim 1, characterized in that the introduction path is connected to an intake duct capable of introducing a part of the air from the drying room.