JPS6014959Y2 - Air blow direction reversal device - Google Patents

Description

[Detailed description of the invention] This invention enables efficient drying work by quickly and accurately reversing the direction of drying air used for dehumidifying and drying by simply reciprocating interlocking operation of two movable shafts. The present invention relates to an air blowing direction reversal/direction device that can be achieved.

Drying air obtained from a heat pump condenser is applied to grains thickly piled up in a drying room under static conditions, and the moisture is absorbed.The absorbed dry air is dehumidified by an evaporator and converted into dry air. In a dehumidifying dryer, dehumidifying and drying work can be easily performed by recirculating this drying air into the drying chamber while converting it into drying air in a condenser, so that the drying air always flows in a fixed direction. When the grain is on the ventilation side, it dries quickly.
The grains on the exhaust side are not completely dried, and the grains are not dried evenly.

Therefore, in order to uniformly dry the grains, the direction of the drying air obtained by the evaporator and condenser may be reversed at any time depending on the drying conditions.

However, if the drying air blowing direction is reversed, unless the installation order of the evaporator and condenser installed in the air blowing direction is changed, the circulating air will flow to the condenser and then to the evaporator. Not only does it generate drying air, but it also cannot dehumidify, making it impossible to accurately perform dehumidifying and drying work.

In view of the above, the present invention has a ventilation chamber in which a blower that blows air in one direction is housed, and a heat exchange air passage chamber in which an evaporator and a condenser are sequentially housed along the ventilation direction. The ventilation passage is partitioned, and ventilation ports are opened at the left and right boundary positions between the partitioned ventilation passage, the ventilation chamber, the heat exchange air passage chamber, and the ventilation chamber and the heat exchange air passage chamber, and the ventilation openings are interlocked with each other. The valves are opened and closed alternately in a zigzag pattern by on-off valves attached to two movable shafts that move back and forth.
To provide an air blowing direction reversal/direction device capable of achieving accurate dehumidification and drying work by always blowing the circulating air in the order of the evaporator and the condenser, no matter how the air blowing direction is reversed. The configuration of the device of the present invention will be described below with reference to various embodiments shown in the accompanying drawings.

In the drawings, reference numeral 1 denotes a ventilation passage formed by a vertical cylinder having a square cross-section, a cylindrical shape, or any other arbitrary cross-sectional shape, and the ventilation passage 1 has both ends thereof accommodated with grains and other dry materials. It is connected to a suitably configured drying chamber (not shown).

Inside the ventilation passage 1, there is a ventilation chamber 2 in which a blower 3 that can blow air in one direction is rotatably housed in an upper position.
In addition, the ventilation passage 1 is adjacent to a heat exchange air passage chamber 4 in which an evaporator 5 and a condenser 6 of a heat pump are housed in parallel at appropriate intervals along the air blowing direction in a lower position. Make sure to divide it into two halves.

And the partition walls at the left and right boundary positions of the respective partitioned ventilation passages 1, ventilation chamber 2, and heat exchange air passage chamber 4, as well as the left and right boundaries between the ventilation chamber 2 and the heat exchange air passage chamber 4? , 8.9 have ventilation holes 1G, 10', 11, 11', and 12°12', respectively.

A series of ventilation holes 10, 11.12 opened as described above.
10', 11', and 12' are each provided with one movable shaft 13.13' passing through the center position thereof, and the two movable shafts 13.13' have their upper ends connected to one They are integrally connected by connecting rods 14, 14, and the upper and lower ends are respectively fitted into guide rods 15, 15 which are fixed in a penetrating manner in the ventilation passage 1, so that the two movable shafts 13 and 13' can move up and down at the same time. It is formed so that it can be moved back and forth in the direction.

16. 16', 16' are on-off valves fixed to one movable shaft 13, respectively, and 17, 17'.

Reference numeral 17'' indicates on-off valves fixed to the other movable shaft 13', and the on-off valves 16, 16', 16'' and 17
．． 17' and 17' are the two movable shafts 13 when the drying air flows from the bottom to the top in the ventilation passage 1 as shown in FIG.
．． When moving downward in conjunction with 13', ventilation port 1
0.11', 12 are opened, paternal ventilation holes 10', 1
1 and 12' are opened and closed in a zigzag manner so that the openings and closing valves 17, 16', and 17' are closed.

Therefore, when the two movable shafts 13 and 13' are moved upward as shown in Fig. 2, the ventilation holes 10, 11' and 1
2 is closed by the on-off valves 16, 17', 16'', and the other ventilation ports 10', 11, 12' are open, so that the drying air flows in the ventilation path 1 from the top to the bottom so that the drying air is reversed. do.

Note that the on-off valves 16 and 16' shown in FIGS. 1 and 2
, 16' and 17, 17', and 17' are both flat plate-shaped with the peripheral edge slightly bent toward the ventilation hole, and the ventilation holes are 10°10' and 11.11' respectively. ,1
2. Backing 1 for airtightness on the 12' opening edge
8...... is attached and an on-off valve 16.16'
, 16', 17. 17', 17' are biased bombs 1, respectively.
It is attached to three movable shafts 13, 13' via 9.

The other embodiment shown in FIG. 3 has an on-off valve 16.16.
', 16', 17.17' and 17'' are both formed in a mortar shape, and the embodiment shown in FIG. 4 has ventilation holes 10, 10', 11 and 11'.

12.12' and on-off valves 16, 16', 16''.

17. This is a case where both 17' and 17' are formed into a rectangular shape.

Next, the operation of the present invention will be explained.

Now, if the two movable shafts 13 and 13' are lowered as shown in Fig. 1, the ventilation ports 10, 11', and 12 will be opened, and the other ventilation ports 10', 11, and 12' will be open/closed. 17,16'
, 17", the mouth is closed.

Therefore, the blower 3 is operated to blow air in the direction of the arrow, and at the same time, the evaporator 5 and condenser 6 are also operated.

As a result, the air flows from the bottom to the top in the ventilation passage 1, so that the drying air that has been subjected to the drying action in the drying chamber (not shown) is sucked into the lower part of the ventilation passage 1. ,
First, it hits the evaporator 5 to dehumidify and dry it, and then hits the condenser 6, where it becomes dry air at an appropriate temperature and is blown upward in the ventilation passage 1 in a zigzag shape by the blower 3, leaving the drying room. It performs a circulation function that dries the material to be dried.

However, there may be cases where it is desired to reverse the blowing direction of the circulating drying air to the opposite direction depending on the accumulated state of the materials to be dried.

In such a case, if the two movable shafts 13 and 13' are pulled up at the same time, the previously opened ventilation holes 10, 11', and 12
is closed by the on-off valve 16.17'16'', and at the same time, the other ventilation port 10' is closed.

11, 12' are reversely opened.

As a result, the drying air that had been blown in a fixed direction by the blower 3 is smoothly blown inside the ventilation passage 1 while being reversed from the upper side to the lower side. At this time, the drying air is first blown against the evaporator 5 to be dehumidified, and then blown against the condenser 6 to become drying air at an appropriate temperature and supplied into the drying chamber, thereby uniformly drying the material to be dried.

In short, since the present invention has the above-described specific configuration, one of the ventilation ports 10, 11', 12 is moved downward in conjunction with the two movable shafts 13, 13'.
and open the other ventilation port 10', 11. 12' is closed by the on-off valves 17.16', 17'', and air can be smoothly blown upward from the downward direction in the ventilation passage 1. When moved upward, the ventilation ports 1G', 11.
12' and close the other ventilation openings 10, 11', 12 with on-off valves 16, 17', 16'' to redirect air in the opposite direction to the previous air blowing direction. Regardless of whether the wind is in the forward or reverse direction, it always hits the evaporator 5 and the condenser 6 in that order to accurately dehumidify and raise the temperature, making it easier to dry the material to be dried. It has a great feature that it can be achieved efficiently.

[Brief explanation of drawings]

The drawings show each embodiment of the device of the present invention, and Fig. 1 is a longitudinal sectional front view with a portion cut away when air is blown from the bottom to the top inside the ventilation duct, and Fig. 2 shows the inside of the ventilation duct. Part 3 is a longitudinal sectional front view with a partial cutaway when air is blown from the top to the bottom.
FIG. 4 is an enlarged partially cutaway perspective view showing a second embodiment of the on-off valve, and FIG. 4 is an enlarged partially cutaway perspective view showing a third embodiment of the on-off valve. 1... Ventilation duct, 2... Ventilation chamber, 3...
...Blower, 4...Heat exchange air duct room, 5...
...Evaporator, 6...Condenser, 10.10'
, 11.11', 12.12'... Ventilation opening, 1
3, 13'...Movable axis, 16, 16', 16"
, 17.17', 17''-...Opening/closing valve.

Claims (1)

[Scope of utility model registration request] The ventilation passage is partitioned by arranging a ventilation chamber housing a blower for blowing air in one direction in the ventilation passage and a heat exchange air passage chamber housing an evaporator and a condenser in sequence along the ventilation direction, Ventilation ports are opened at the left and right boundary positions between the partitioned ventilation passage, the ventilation chamber, and the heat exchange air passage chamber, as well as between the ventilation chamber and the heat exchange air passage chamber, and the ventilation openings move back and forth in conjunction with each other. An air blowing direction reversal/direction device characterized in that the opening and closing opening is alternately opened and closed in a zigzag pattern by an opening/closing valve attached to a movable shaft of a book.