JP2788575B2 - Air supply and exhaust system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air supply / exhaust system for an object room.
For details of the device, a box-shaped chamber
Either air blowing or air suction from the target room
The air supply / exhaust port is formed with an opening, and the air supply / exhaust duct is
In the vicinity of a limited part of the mouth rim
The invention relates to a supply / exhaust device connected to the chamber .

[0002]

2. Description of the Related Art FIG. 4 shows an air conditioner using the above-described air supply / exhaust device. Chambers 4 and 5 are provided on both side walls of a target room 1, and air supply / exhaust ports 2 are provided in the chambers 4 and 5, respectively. 3 and the supply / exhaust ducts 6 and 9 with the fan 10 and the air conditioner 11 interposed are spread between the two chambers 4 and 5. The air As is blown out and supplied to the target chamber 1 and the room air Ar is sucked in from the second supply / exhaust port 3, and the air As is conveyed from the second supply / exhaust port 3 to the target chamber 1 by the reverse rotation of the fan 10. In this embodiment, room air Ar is sucked in from the first air supply / exhaust port 2 while being blown out.

[0003] In such an apparatus configuration in which the air supply / exhaust ports 2 and 3 are selectively used for blowing air into the target chamber 1 and sucking air from the target chamber 1, the ducts 6 and 9 and the chambers 4 and 3 are used. Due to space limitations in the installation of the air supply / exhaust port 5, the connecting portions of the air supply / exhaust ducts 6 and 9 to the chambers 4 and 5 are limited to a limited portion of the rims of the air supply / exhaust ports 2 and 3.
Position near the edge of the
Conventionally, as shown in the figure, the connection of the supply / exhaust ducts 6, 9 to the chambers 4, 5 of the opening surfaces of the supply / exhaust ports 2 and 3 against the uneven flow of the airflow caused by the eccentric arrangement to the air.
This has been dealt with by fixedly providing a baffle plate B made of a perforated plate or the like at a partial location near the portion .

[0004] That is, the connection of the supply / exhaust duct connection as described above.
Due to the biased arrangement toward a part of the rim, when the room air is sucked, there is a drift in which the suction airflow Ar concentrates on the portion of the opening surfaces of the air supply and exhaust ports 2 and 3 near the connection between the air supply and exhaust ducts 6 and 9. The baffle plate B is provided so as to prevent the occurrence of the air flow and the deviation of the indoor air flow distribution.

[0005]

However, when the baffle plate B as described above is provided, when the air supply / exhaust ports 2 and 3 are used for blowing air to the target chamber 1, the air supply / exhaust ports 2 and 3 are used. Baffle plate B against wind As
Becomes an obstacle, and the airflow As blown out to the target room 1 is disturbed,
This has led to problems such as turbulence and bias in the indoor airflow condition.

An object of the present invention is to make it possible to effectively achieve a uniform airflow distribution both at the time of air suction and at the time of air blow by a rational configuration.

[0007]

A first characteristic configuration of the air supply / exhaust device according to the present invention is that a box-shaped chamber is provided with an empty space for an object chamber.
Air blowing and air suction from the target room are performed alternatively.
The supply / exhaust port is formed with an opening, and the supply / exhaust duct is
In front of the proximate position to a limited part of the lip of the mouth
In the configuration connected to the chamber, the blade swings closed and oscillated by gravity to a closed position that restricts air suction into the air supply / exhaust port, and swings open against the gravity by air blown out from the air supply / exhaust port. The opening surface of the air supply / exhaust port
Connection of the supply / exhaust duct to the chamber
A stopper mechanism that is arranged side by side in a partial location near the portion and that prevents the blade from swinging in the opposite direction from the closed position against the gravitational force by the air sucked into the air supply / exhaust port and swinging. The operation and effect are as follows.

[0008]

In other words, according to the first characteristic configuration, when the air supply / exhaust port is used for sucking air from the target chamber, the blade moves to the closed position to restrict the air suction into the air supply / exhaust port. As a result, the above-mentioned stopper mechanism maintains the closed posture against the suction airflow.

That is, with these blades in the closed position,
The air is sucked in the blade side-by-side portion of the air supply / exhaust opening , that is, the air supply / exhaust
The air suction at a partial location near the connection to the chamber is restricted, thereby preventing a drift in which the suction air flow concentrates on a portion near the connection of the air supply / exhaust duct in the opening surface of the air supply / exhaust port.

When the air supply / exhaust port is used for blowing air into the target chamber, the above-mentioned blade is opened and swung against the gravity by the air blown from the air supply / exhaust port, and is kept in the open position.
By this opening posture, air can be smoothly blown from the air supply / exhaust port to the target chamber without obstructing the group of blades arranged in parallel.

[0011]

As a result of the above effects, according to the present invention, according to a first characterizing feature of the present invention, the connection to the chamber of the supply and exhaust ducts,
Proximity to a limited portion of the inlet / outlet rim
While a structure in which disposed location, the airflow distribution in the sheet discharge port, can also be made uniform at any time of intake air from the time and the target chamber air blown into the target chamber, and thus, supply and exhaust operation Throughout the entire period, the airflow condition in the room can be made favorable without any turbulence or bias, and the air-conditioning performance for the target room can be greatly improved.

[Second characteristic configuration of the present invention] A second characteristic configuration of the air supply / exhaust device according to the present invention resides in that the air supply / exhaust duct is provided in the chamber in a direction extending from the connection side of the air supply / exhaust duct to the opposite side. The rectifying means for equalizing the airflow distribution is provided.

In other words, according to the second characteristic configuration, the air flow to the target chamber is achieved by the synergistic effect of equalizing the air flow distribution by the blades and equalizing the air flow distribution by the rectifying means in the chamber. In addition, the airflow distribution in each of the cases where air is sucked from the target chamber can be made more uniform.

[0014]

Next, an embodiment will be described.

FIG. 1 shows a drying cabinet for agricultural products and marine products. A first supply / exhaust port 2 is provided on substantially the entire side wall of the drying chamber 1, and a second supply / exhaust port is provided on the substantially entire side wall facing the drying chamber. The drying process is performed on the storage items in the refrigerator by indoor air conditioning using the air supply / exhaust ports 2 and 3.

T is a moving shelf for storing the drying object.

A first box-shaped first air supply / exhaust port 2 is formed .
Chamber 4 and the same box in which the second air supply / exhaust port 3 is formed.
Is connected to the second chamber 5 via a ceiling air passage 6, an upper damper room 7, a dehumidifying unit equipment room 8, and a lower damper room 9, and by operating the axial fan 10 in a normal rotation. The air is blown out from the first air supply / exhaust port 2 to the drying chamber 1 and air is blown into the drying chamber 1 from the second air supply / exhaust port 3 to air-condition the drying chamber 1, and conversely, the axial flow fan 10 is operated in reverse. The drying chamber 1 is air-conditioned by blowing air from the second air supply / exhaust port 3 to the drying chamber 1 and sucking the room air from the first air supply / exhaust port 2. It is assumed that

The ceiling air passage 6 serving as a supply / exhaust duct for the first chamber 4 is connected to the upper end of the first chamber 4 due to its arrangement, and a lower damper serving as a supply / exhaust duct for the second chamber 5. The chamber 9 is also a dehumidifying unit 11
Because of the arrangement of the air supply and exhaust ducts 6 and 9 for the respective chambers 4 and 5,
Is an end of each of the chambers 4 and 5, and is located near a limited portion of the rim of each of the air supply and exhaust ports 2 and 3.
To be the location, of the opening surface of each intake and exhaust ports 2 and 3, connections to the chamber 4 and 5 of the supply and exhaust ducts 6,9
The air flow formed by the free hanging blades v is provided at a partial location near the upper portion (that is, a portion near the upper edge in the first air supply / exhaust port 2 and a portion near the lower edge in the second air supply / exhaust port 3). An adjusting mechanism 12 is provided.

As shown in FIGS. 2 and 3, the specific structure of the airflow adjusting mechanism 12 is as follows. Of the air supply / exhaust ducts 6, 9 to the chambers 4, 5 of the opening surfaces of the air supply / exhaust ports 2, 3.
A large number of them are arranged vertically at a partial location near the connecting portion .

The structure in which the swinging end of each blade v is brought into contact with the swinging shaft of the adjacent blade v from the indoor side in the closed position is defined as a stopper mechanism s. , 3 is prevented by the stopper mechanism s from opening and oscillating in the opposite direction from the closed position by the suction air Ar, and each blade v is formed of a perforated plate having an appropriate aperture ratio. The suction of air to the attachment target supply / exhaust ports 2 and 3 is limited by providing resistance to the suction by the perforated blades v in the vertically closed posture.

That is, when the supply / exhaust ports 2 and 3 to be attached are used for sucking air, as shown in FIG. By giving appropriate restrictions to the air intake of the air supply and exhaust ports 2,
3 prevents the air flow Ar from concentrating at a portion near the connection between the supply / exhaust ducts 6 and 9 to the chambers 4 and 5 with respect to the chambers 4 and 5, and prevents the air supply / exhaust ports 2 to be attached.
When the blades 3 are used for blowing air, as shown in FIG. 2B, the blades v are opened and swung with respect to the blowing air As from the target supply / exhaust ports 2 and 3, so that these blades are rotated. Air is smoothly blown out from the target supply / exhaust ports 2 and 3 to the drying chamber 1 without causing the parallel arrangement group of v to be an obstacle. In both the case of blowing air and the case of sucking air from the drying chamber 1, the air flow state of the drying chamber 1 is always good without being disturbed or biased by making the air flow uniform throughout the opening surface.

In FIG. 1, rectifying vanes 13 and 14 are arranged side by side in the direction extending in the respective chambers 4 and 5 between the connection side of the supply / exhaust ducts 6 and 9 and the opposite side (in this example, the vertical direction). The airflow distribution in each of the chambers 4 and 5 is equalized in the direction between the connection side of the supply / exhaust ducts 6 and 9 and the opposite side thereof by the rectifying blades 13 and 14, so that the air supply / exhaust ports 2 and 3 have the same configuration. The air flow distribution is made uniform.

The row of rectifier blades 14 in the second chamber 5 is reciprocally oscillated at a predetermined cycle by a drive mechanism 15 as shown by a chain line in the drawing, thereby achieving more uniform air flow distribution. I do.

D1 to D4 are each constituted by a bendable plate-like body, and open and close two air paths in a bidirectional manner in a bent state by a cordage I connected to both ends in a bent state. The first damper D1 has an external shut-off position for closing the upper external opening a in the upper damper chamber 7 in a state where the indoor air passage of the upper damper chamber 7 is opened, and a first damper D1.
(Closed or nearly closed)
To open and close the upper external opening a of the upper damper chamber 7 with the internal shut-off position, and the second damper D2 is
With the indoor air passage of the upper damper room 7 open, the upper damper room 7 is opened.
And an internal shutoff opening the lower external opening b of the upper damper chamber 7 with the indoor air passage of the upper damper chamber 7 closed (fully or almost fully closed). It is supposed to be slid open and closed over the position.

On the other hand, the third damper D3 is provided in the lower damper chamber 9
When the indoor air path of the lower damper chamber 9 is opened and the upper external opening c is closed, the lower damper chamber 9 is closed (fully or almost fully closed). The lower damper chamber 9 opens and closes the lower outer opening d in the lower damper chamber 9 in a state where the indoor air passage of the lower damper chamber 9 is opened. Sliding opening / closing operation between an external shut-off position to be closed and an internal shut-off position to open a lower external opening d of the lower damper chamber 9 in a state where the indoor air passage of the lower damper chamber 9 is closed (in a state where the lower damper chamber 9 is fully or almost fully closed). There is to do.

The first to fourth dampers D1 to D1
By the operation of D4, the following air path forms can be selected and executed.

A full circulation mode in which the entire amount of the return air Ar from the drying chamber 1 is circulated in each of the normal rotation operation and the reverse rotation operation of the axial fan 10.

In the normal operation of the axial fan 10, the external air Ao introduced from the upper external opening c in the lower damper chamber 9.
Is dehumidified by the dehumidifying unit 11, and the dehumidified outside air As is supplied from the first supply / exhaust port 2 to the drying chamber 1, and the entire amount of return air Ar from the second supply / exhaust port 3 is transferred to the lower side of the lower damper chamber 9. In the reverse operation of the axial flow fan 10, the external air Ao introduced from the lower external opening b in the upper damper chamber 7 is dehumidified by the dehumidifying unit 11, and the dehumidified external air As is discharged. Is supplied from the second supply / exhaust port 3 to the drying chamber 1 and the return air A from the first supply / exhaust port 2 is supplied.
The entire outside air form in which the entire amount of r is exhausted to the outside from the upper outer opening a of the upper damper chamber 7.

In the normal rotation operation of the axial fan 10, the second
A part of the return air Ar from the air supply / exhaust port 3 is exhausted to the outside through the lower external opening d of the lower damper chamber 9, and the remaining external air Ao from the remaining external air Ar and the upper external opening c in the lower damper chamber 9. Is dehumidified by the dehumidification unit 11,
The dehumidified air-fuel mixture As is supplied from the first air supply / exhaust port 2 to the drying chamber 1, or conversely, in the reverse rotation operation of the axial fan 10, a part of the return air Ar from the first air supply / exhaust port 2 is transferred to the upper damper. The air is exhausted from the upper external opening a of the chamber 7 to the outside, the remaining part of the return air Ar and the lower external opening b in the upper damper chamber 7
A dehumidified air-fuel mixture As and a dehumidified air-fuel mixture As and a dehumidified air-fuel mixture As supplied to the drying chamber 1 from the second air supply / exhaust port 3.

In these partial outside air introduction modes,
By adjusting the sliding position of the damper in an intermediate state between the external shut-off position and the internal shut-off position, the ratio of the circulating air to the introduced external air is adjusted to an appropriate value according to the external air condition, the indoor condition, and the like.

Further, in the normal rotation operation of the axial fan 10, the external air A introduced from the upper external opening a of the upper damper chamber 7
o in the first air supply / exhaust port 2 without being dehumidified by the dehumidification unit 11
To the drying chamber 1 and exhaust the entire amount of return air Ar from the second air supply / exhaust port 3 to the outside through the lower external opening d of the lower damper chamber 9, or conversely, the reverse operation of the axial fan 10 In the second embodiment, the outside air Ao introduced from the lower external opening d of the lower damper chamber 9 is dehumidified by the
An external air ventilation mode in which the supply / exhaust port 3 is supplied to the drying chamber 1 and the entire amount of return air Ar from the first supply / exhaust port 2 is exhausted to the outside through the upper external opening a of the upper damper chamber 7.

On the other hand, in the dehumidifying unit 11, the indoor unit 11B for performing the air dehumidifying process is provided with the dehumidifying heat exchanger 1B.
6, reheat heat exchanger 17, and those heat exchangers 16,
There as an interior structure in wind tunnel 19 side by side fan 18 for ventilating the dehumidified air Ar in series with 17, which
On the other hand, the outdoor unit 11A has a heat exchanger 20 for absorbing and dissipating heat.
Further, a fan 21 is provided for ventilating the outside air Ao.

As the operation of the dehumidifying unit 11, the following cooling dehumidifying operation, heating dehumidifying operation, and dehumidifying operation are selectively performed by switching the refrigerant flow mode.

That is, in the cooling and dehumidifying operation, the dehumidifying heat exchanger 16 functions as an evaporator while the reheating heat exchanger 1 is operated.
7 and the heat exchanger 20 for heat absorption and radiation function as a condenser,
Therefore, while radiating heat to the outside with the heat exchanger 20 for absorbing and releasing heat,
The air Ar is cooled and dehumidified by the heat exchanger 16 for dehumidification, and the cooled dehumidified air is reheated and controlled by the heat exchanger 17 for reheating.

In the heating and dehumidifying operation, the dehumidifying heat exchanger 1 is used.
6 and the heat exchanger for heat radiation 20 function as an evaporator, while the heat exchanger for reheating 17 functions as a condenser. Thus, the heat exchanger for heat radiation 20 absorbs heat from the outside and heat exchange for dehumidification. While cooling and dehumidifying the air Ar with the vessel 16,
The temperature of the cooled dehumidified air is reheated by the reheat heat exchanger 17.

In the operation for exclusive use of dehumidification, the heat exchanger for dehumidification 16 is operated in a state where the heat exchanger for heat radiation and absorption is stopped.
While the heat exchanger 17 functions as an evaporator, the reheat heat exchanger 17 functions as a condenser, and in the state where heat exchange with the outside by the heat pump is cut off, the air A is passed through the dehumidification heat exchanger 16.
r is cooled and dehumidified, and the cooled dehumidified air is reheated by the reheat heat exchanger 17.

[Another Embodiment] Next, another embodiment will be described.

[0038] Instead of forming the blade v a porous plate, a gap of suitable size to allow air passage between and what vanes v in the closed position may be provided with a, also and its gap structure and the porous plate structure They may be combined.

In closing and swinging the blade v by gravity, a weight may be used instead of the weight of the blade v.

The stopper mechanism s for preventing the blades v from opening and oscillating in the opposite direction by the suction air Ar can employ various structures instead of the contact structure between the blades v as in the above-described embodiment.

The rectifying means 13, 1 is provided in the chambers 4, 5.
In the case where 4 is provided, the specific structure of the rectifying means can be variously changed.

The air supply / exhaust device according to the present invention is applicable not only to air conditioning in a drying cabinet but also to air supply / exhaust for various purposes in various fields.

Incidentally, reference numerals are provided in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configuration of the attached drawings by the entry.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a drying cabinet.

FIG. 2 is an enlarged sectional view of a blade structure.

FIG. 3 is a partially enlarged front view of the blade structure.

FIG. 4 is a device configuration diagram showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Target room 2, 3 Supply / exhaust port 4, 5 Chamber 6, 9 Supply / exhaust duct 13, 14 Rectifier Ar Ar intake air As Blow air s Stopper mechanism v Blade

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ identification code FI F26B 21/00 F26B 21/04 D 21/04 F24F 1/02 441C (58) Fields surveyed (Int.Cl. ⁶ , DB name) ) F24F 13/15 F26B 9/06

Claims (2)

(57) [Claims] An object is provided in a box-like chamber (4), (5).
Blowing air into chamber (1) and sucking air from target chamber (1)
Opening the air supply and exhaust ports (2) and (3) that selectively perform
And forming the supply and exhaust ducts (6) and (9) with the supply and exhaust ports (2),
Neighboring position for a limited part of the rim of (3)
A supply / exhaust device connected to the chambers (4) and (5) , wherein the supply / exhaust port closes and swings by gravity to a closed position that restricts air suction into the supply / exhaust ports (2) and (3); The blade (v) that opens and swings against the gravity by the air (As) blown out from the air supply / exhaust ports (2) and (3) is moved to the air supply / exhaust port.
(2) The air supply / exhaust duct of the opening surfaces of (3)
(6) and (9) for the chambers (4) and (5)
The blades (v) are arranged side by side at a partial location near the connection portion, and the blades (v) are swung open from the closed position in the opposite direction against the gravity by the suction air (Ar) into the air supply / exhaust ports (2) and (3). A supply / exhaust device provided with a stopper mechanism (s) for preventing movement. 2. A rectifier in the chambers (4) and (5) for equalizing an airflow distribution in the chamber in a direction extending between a connection side of the supply / exhaust ducts (6) and (9) and a side opposite to the connection side. 2. The air supply / exhaust device according to claim 1, further comprising means (13) and (14).