JPH0260570A - Apparatus for partitioning laver drying building - Google Patents

Abstract

PURPOSE:To obtain stable laver drying conditions by forming partitions of a laver drying air circulation area in a laver drying building and constructing the area so as to avoid any influence on moist air in the above-mentioned area and outside air from external conditions, such as outside wind. CONSTITUTION:Upper spaces of a laver drying chamber 7 and heating chambers 8 and (8a) in a laver drying building 1 are partitioned to form a laver drying air circulation area 12 through a shielding member 11, such as vinyl sheet or plate material. The outside air is fed from outside air introduction ports 4 and (4a) through other areas of the building 1, then introduced from air suction passages 13 and (13a) provided under the laver drying air circulation area 12, then around sides of the air heating chambers 8 and (8a), passed through the laver drying air circulation area 12 by driving with suction fans 14 and (14a) from the lower side and subsequently discharged to the exterior.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention, which is in the field of industrial application, relates to a partition in a seaweed drying building. It is installed in the partition H position to obtain a good amount of seaweed drying air.

``Prior art'' As is well known, when drying seaweed, hot air with appropriate temperature and humidity under certain conditions is uniformly and constantly applied, depending on various conditions such as the type of seaweed, its hardness and softness, and the time of collection. Supplying the seaweed to a drying room and drying it thoroughly is considered the key to stable quality.

In general, the following values are considered appropriate for the temperature and humidity inside the nori drying room.

In order to specifically realize the conditions for the seaweed drying air shown above, not only the temperature but also the humidity must be automatically controlled, which is not easy to do manually.

By the way, the above-mentioned temperature control can be achieved relatively easily by turning on and off a burner installed in an air heating chamber connected to the seaweed drying chamber.

However, since it is possible to control the temperature fairly accurately, it is actually possible to control the temperature in the nori drying room using this method.
The current situation is that it is being done properly.

On the other hand, humidity control is considered to be extremely difficult due to various conditions, environments, etc.

In other words, when drying seaweed, approximately 37
~42g of water is evaporated. in this way,
Since a large amount of water is evaporated from raw seaweed, the air that is ultimately discharged from the seaweed drying room contains a considerable amount of moisture and is usually referred to as humid air. Therefore, when maintaining the drying conditions mentioned above, this humid air containing a large amount of moisture is discharged outside the nori drying building, and fresh air with low humidity is used instead. It is necessary to inhale from the inlet. In this way, by smoothly replacing humid air with outside air, seaweed drying air optimal for drying seaweed is generated, and high-quality dried seaweed can be stably produced.

However, the outside air that becomes part of the seaweed drying air,
It constantly fluctuates depending on external conditions.

That is, as the outside weather changes every moment, its temperature, humidity, and wind speed fluctuate. In addition, the entrances and exits of the nori drying building are opened when people come in and out, and other items are brought in, so there is a risk of excess outside air entering the building, or conversely, damp air being discharged from the required nori drying room. The current situation is that it fluctuates in a variety of ways depending on various conditions such as washing away, and it is difficult to handle it.

Furthermore, the humid air discharged from the seaweed drying room also varies depending on the air flow inside the seaweed drying building, the introduction of outside air, etc., and smooth exhaustion to the outside of the seaweed drying building cannot always be expected.

As mentioned above, the exhaust of outside air and humid air fluctuates depending on external conditions, and the control of the nori drying air is not limited to the nori drying room itself, but also the flow of the nori drying air surrounding it. Since it has to be comprehensive, including replacing humid air with outside air, it is difficult to manage, and in reality, improvements are only one-dimensional.

Furthermore, the following may be considered as other factors. That is, the humidity inside the seaweed drying building fluctuates due to careless handling of water in the pretreatment process. Specifically, when the frequency of washing the seaweed cage increases in what is usually called a woodland (generally when there is nori residue attached to the seaweed cage), water ultimately becomes The use of this product causes the humidity inside the nori drying building to become trapped, resulting in a situation of excessive humidity.

Fluctuations in humidity during such daily work cannot be overlooked.

The following technical documents can be found here and there.

That is, there is a humidity adjustment device in the seaweed drying equipment of JP-A No. 61-18517, the gist of which is a variable steam amount type steam generator that sends a predetermined amount of steam into the known +m moss drying equipment. The aim is to maintain the humidity in the moss drying room at a substantially constant level each time through automatic control of these and the burner, etc.

Other Utility Model Publication No. 57-53196 proposed by the present applicant
There is a continuous dryer for seaweed equipped with an automatic air volume control device.The gist of this is that it includes a humidity detector that detects the humidity in the seaweed drying chamber, and a control circuit that manually inputs the detected value from this humidity detector. The system is configured to vary the air volume of the fan by controlling a variable speed motor using a command signal from the circuit.
The feature is that humidity is controlled by adjusting the air volume of the fan.

``Problems to be Solved by the Invention'' As described above, conventional humidity control can certainly be expected to achieve considerable results in controlling humidity in a seaweed drying room, and is thought to be useful for producing high-quality dried seaweed.

However, since no measures have been taken to ensure that the seaweed drying air flows only in divided basins or to smoothly replace humid air with outside air, the improvements are only marginal.

In addition, the air used to dry the seaweed is affected by the external conditions mentioned above, and it is considered difficult to always produce stable dried seaweed.

Therefore, when we specifically examine the flow of seaweed drying air (the flow of humid air and outside air), we find that the shape, size, and direction of the seaweed drying building (the relationship between the wind direction and the seaweed drying building, the outside air intake The conditions vary depending on the shape and dimensions of the breather, the model, size, position and spacing of the seaweed drying room installed in the seaweed drying building, the gap between the seaweed drying room and the inner wall, etc. This is where accurate control is considered difficult.

For example, as shown in Figure 5 and Figure 61!1, the inside of the seaweed drying building is affected by the direction of the outside wind, and the wind blows from the left side as shown in Figure 5. If we assume that the wind is blowing (of course, the direction of the wind changes depending on the time and weather), there will be wind inside the nori drying building as shown by the chain line, and the humid air exhausted from the nori drying room will flow into the air heating room. Flowing in the direction of , more humid air than necessary is
The air is re-supplied to the heating chamber. Therefore, the required amount of outside air is not supplied, and humid air is supplied to the air heating chamber. As a result, there is a possibility that the optimal supply of seaweed drying air into the seaweed drying chamber cannot be ensured.

In the example shown in Figure 6, the opposite phenomenon occurs; the air heating chamber is filled with outside air, and a large amount of low-humidity air is supplied to the air heating chamber, while the required humid air is not supplied to the air heating chamber. figure.

As a result, there is a possibility that the optimal supply of seaweed drying air into the seaweed drying chamber may not be ensured.

As mentioned above, such differences occur even if we look only at the wind direction and the arrangement of the nori drying room.In addition, some places take some consideration in the handling of the woodyards mentioned above, but Most of them do not use any method.

In view of the above, the present invention divides and forms a seaweed drying air circulation area that is not affected by external conditions in a seaweed drying building, so that the wind direction of moist air in this seaweed drying air circulation area is not affected by outside wind. In addition, the outside air is introduced by bypassing the side of the air heating chamber and is drawn in from a predetermined position from below via an intake fan, allowing for smooth exhaustion of humid air and effective utilization, as well as effective use of humid air and outside air. The aim is to ensure smooth replacement with

``Means for Solving the Problems'' Therefore, the present invention divides the air circulation area for drying seaweed by using a shielding member in the upper air gap of the seaweed drying room and the air heating chamber (in the seaweed drying building). By doing so, the humid air in this nori drying air circulation area is not affected by the wind direction inside or outside the nori drying building or other external conditions, and the outside air is introduced by bypassing the side of the air heating chamber.
The i-structure allows the air to be smoothly sucked into the designated position from below via an intake fan, allowing effective use of humid air and outside air by exhausting humid air and smoothly replacing humid air with outside air. The goal is to generate optimal seaweed drying air.

Furthermore, as shown in the psychrometric diagram of FIG. 7, when drying conditions for obtaining good dried seaweed are displayed, it is thought that the shaded area E corresponds to this. However, there is no guarantee that good dried seaweed will be produced even within this narrow area.

That is, other conditions cannot be controlled uniformly due to, for example, the quality of the raw algae, the characteristics of the seaweed dryer, the characteristics of the seaweed drying building, etc., and within the above-mentioned area that corresponds to the conditions in each case, Moreover, it is necessary to select a limited area.

In order to cope with such cases, the present invention creates an isolated nori drying circulation area, and uses a humidity sensor installed in the nori drying room or an attached W control device to supply humid air to the conditions of nori algae, etc. It is configured to be controlled as desired by setting, and has a structure that allows for precise exhaustion or circulation of humid air, and smooth intermingling of humid air and outside air.

"Function" Next, the present invention will be described in detail. The seaweed drying building is provided with a seaweed drying air circulation area defined by a shielding member. If the ventilation flow path is blocked because of this (this condition is the so-called lack of humidity or proper humidity. Also, in the case of electric shutters, if the shutter is closed) , the exhaust of humid air is almost completely blocked. Therefore, as a general rule, outside air is not introduced, and this humid air is circulated without being affected by the outside wind, and most of the humid air is circulated to the air heating chamber.

In addition, if natural ventilation is required, open the ventilation flow path (in the case of electric shutters, leave the shutter open).This will allow moist air to flow out due to the difference in specific gravity due to the difference in air temperature. The air is exhausted to the outside of the seaweed drying building through the ventilation channel, while outside air is introduced through the windows of the seaweed drying building and other lines, bypasses the 1115 side of the air heating chamber, and is aired from below via an intake fan. introduced into the heating chamber.

In addition, if the humidity removal is not sufficient even with the natural ventilation described above (this applies to cases where dehumidification is insufficient), the exhaust fan installed in the drying flow path is driven to perform forced ventilation and remove the necessary amount of air. In addition to exhausting this (negative air flow path to the outside of the seaweed drying building), the outside air is also exhausted through the windows of the seaweed drying building,
The required amount is introduced from between the lines, etc., bypasses the side of the air heating chamber, and is introduced into the air heating chamber from below via an intake fan. As a result, the inside of the seaweed drying room is maintained at an appropriate level of humidity, which contributes to the production of high-quality dried iH seaweed.

Note that the humidity control in the seaweed drying chamber (mentioned above) is automatically controlled via a humidity sensor installed in the nori drying chamber (not shown) and a control device attached to this, and in response to this humidity control, Opening/closing the ventilation flow path, driving/stopping the exhaust fan is #! Executed meticulously.

As a result, as described above, the humid air can be exhausted or circulated, or the humid air can be smoothly replaced with outside air.

"Example" The present invention will be specifically explained below with reference to one embodiment of the present invention.

1 is a ventilation flow path 2 and a ventilation fan 3 (not shown, but a ventilation fan in which an electric shutter and a fan operate separately;
Alternatively, a ventilation fan that operates simultaneously with a wind pressure shutter and a fan may be used. ), and outside air inlet 4.4
a. A seaweed drying building equipped with an entrance/exit 5. This seaweed drying building 1 is equipped with various seaweed manufacturing machines, such as a papermaking machine 6, a seaweed drying room 7, front and rear air heating chambers 8.8a,
Burners 9.9 as chimneys 10, 10a, etc. are provided, respectively. Although the ventilation channel 2 is not shown, i! In some cases, the door is opened and closed using a bushing board, and in other cases, the degree of closure is automatically controlled.

Although not shown, various ventilation structures may be used, such as a case in which a pair of ventilation fans 3 are provided through a shielding member in a single ventilation flow path 2 provided facing toward the ridge of the seaweed drying building 1. It is of course possible to use the tit passage 2 as well as the ventilation passage 2 of a conventional general seaweed drying building 1.

Therefore, in the present invention, a seaweed drying air circulation area 12 is defined within the seaweed drying building 1 using a shielding member 11 made of vinyl, board, or the like. To explain a desirable example of this using the illustrated example, the upper surface space of the seaweed drying chamber 7 and the air heating chamber 8.8a is designed so that the humid air is not influenced by other external conditions such as outside wind. Use a shielding structure. In addition, the outside air passes through other areas of the seaweed drying building 1 through the outside air inlet 4.4a of the seaweed drying building 1, and then heats the air through intake passages 13, 13a provided at the lower part of the seaweed drying air circulation area 12. It bypasses the side of the chamber 8.8a and is smoothly drawn into a predetermined position from below via the intake fans 14, 14a.

In order to more precisely control the drying conditions inside the seaweed drying chamber, the air circulation section @12 is divided into an air heating chamber 8 on the front side and an air heating chamber 8a on the rear side via a shielding member 11a. It is also possible to do so.

Next, to explain the present invention in detail, when the seaweed drying chamber 7 is started, the inside of the seaweed drying chamber 7 is largely in a state of insufficient humidity, and as a general rule, the ventilation channel 2 is closed and cold. ing. Therefore, almost all of this humid air is recycled to the air heating chamber 8.8a, and in principle, outside air is not introduced during this recycling process.

After that, approximately 2/3 to 3/3 of the raw seaweed was left in the seaweed drying room 7.
4, but the humidity inside the nori drying chamber 7 is a little excessive, so the ventilation flow path 2 is opened via a humidity sensor, etc. (In the case of an electric shutter, open the shutter.) This allows for natural drying. Moving on to ventilation, a part of the humid air is exhausted to the outside of the moss drying building 1 via ventilation flow #I2,
Further, most of the air is circulated through the seaweed drying air circulation area 12 and is then circulated and supplied to the air heating chamber 8.8a. At the same time, outside air is introduced from the outside air inlet 4.4a in an amount approximately equivalent to the amount of humid air exhausted, and then passes through other areas of the seaweed drying building 1 and enters the intake passage 13 from the lower part of the seaweed drying air circulation area 12. .13a to the air heating chamber 8.8a.

If the humidity inside the seaweed drying room 7 increases further and becomes excessive, the above-mentioned natural ventilation will not be sufficient, so the ventilation fan 3 will be driven to switch to forced ventilation. When the ventilation fan 3 is driven in this way and forced ventilation is performed, the necessary amount of humid air is exhausted outside the seaweed drying building 1 through the ventilation channel 2, and other humid air is discharged in the same manner as described above. Air heating chamber 8 at the root
．． 8a is supplied in circulation. At the same time, approximately the same amount of outside air as the required amount introduced through the outside air inlet 4.4a is supplied to the air heating chamber 8.8a through the same route as described above.

Then, the natural ventilation and/or forced ventilation (opening/closing of the ventilation channel 2, driving and stopping of the ventilation channel 7), etc. are automatically controlled via the humidity control, and the drying of the seaweed is successively repeated.

After that, when finishing the seaweed manufacturing work, - When the raw seaweed in the seaweed drying chamber 7 decreases during boat fishing and the remaining amount is approximately 27a, the humidity tends to decrease, so the ventilation fan 3 is activated. is stopped and shifted to natural ventilation, and some of the humid air enters the ventilation flow v! The air is exhausted as described above through I2, and most of it is circulated and supplied to the air heating chamber 8.8a. At the same time, outside air is also supplied to the air heating chamber 8.8a by the same route as described above.

After that, the amount of raw seaweed in the seaweed drying room 7 further decreased to almost 1/4.
When the remaining amount reaches a certain level, the humidity will further decrease, so close the ventilation flow path 2 (close the electric shutter),
The situation is similar to that at startup, and almost all of the humid air is circulated and supplied to the air heating chamber 8.8a to cope with the lack of humidity.

"Effects of the Invention" As described in detail above, the present invention divides the seaweed drying air circulation area in the seaweed drying building, and this til! The structure is such that the humid air and outside air in the moss drying air circulation area are not affected by the outside wind or other external conditions mentioned above. This is very important because it is possible to supply stable and optimal seaweed drying air to the seaweed drying room and produce high quality raw seaweed, and it is also possible to easily control and automate the seaweed drying air. It is beneficial for

As described above, since the exhaust or circulation of humid air and the introduction of outside air can be controlled reliably and efficiently, the optimal amount of nori drying air can be supplied into the nori drying room, producing high-quality dried nori. It is highly useful for reducing WilH by effectively circulating air and efficiently controlling the drive of ventilation or intake fans, burners, etc.

In addition, the present invention is configured to introduce humid air through the intake passage provided at the bottom of the moss drying air circulation area 11, so that the outside air does not reach the nori drying chamber and is reliably introduced into the air heating chamber. The drying air should not have a negative effect on the temperature and humidity of the seaweed drying air in the seaweed drying room and the fresh seaweed, and would not impede the flow of humid air through the ventilation channel.

Furthermore, it can be easily installed in conventional seaweed drying buildings of this kind (the structure explained in the above example) and similar seaweed drying buildings, and is excellent in versatility and low cost.

Furthermore, even when water is used in response to increased water levels, the humidity in the nori drying air circulation area within the nori drying building is not affected, making it possible to maintain appropriate humidity control, which is very beneficial.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a front view of a nori drying building divided by shielding members to provide a nori drying air circulation area, and FIG. 2 is a view of the nori drying building and nori. Figure 3 is a schematic plan view illustrating air transition between the drying air circulation area and the drying air circulation area, Figure 4 is a schematic plan view illustrating air transition between the seaweed drying building and the seaweed drying air circulation area, and Figure 4 is a diagram showing the seaweed drying building and seaweed. FIGS. 5 and 6 are schematic side views illustrating the transition of air to and from the dry air circulation area; FIGS. 5 and 6 are schematic front views illustrating the transition of air between the nori drying building and the nori drying room, respectively; Figure 7 shows humid air in normal conditions. 1: ill moss drying building 2: ventilation channel 3: ventilation fan 4.4a: outside air intake 5: entrance/exit
6: Paper making machine 7: i# moss drying room 8.8a: Air heating room 9,
9a: Burner lOl 10 a: Chimney 1】
, 1]a: Shielding member 12: Seaweed drying air circulation area 13, 13a: Intake passage 14, 14a: Intake funnel

Claims (6)

[Claims] (1) A seaweed drying building with a ventilation flow path equipped with a ventilation fan includes a seaweed machine, a seaweed drying room, an air heating room connected to the seaweed drying room, and a seaweed drying room installed on the discharge port side of the seaweed drying room. A peeling machine, etc. is installed, and the upper space of the nori drying room and air heating room is divided into a nori drying air circulation area through shielding members such as vinyl sheets and board materials. is where the ventilation flow path is located and is separated and independent from other areas of the nori drying building,
The outside air introduced into the seaweed drying building is introduced through an intake passage provided in the seaweed drying air circulation area, and the humid air inside the seaweed drying room is heated when the ventilation flow path is open and/or A partition device for a seaweed drying building, characterized in that when a ventilation fan is operating, air is exhausted outdoors through a seaweed drying air circulation area. (2) The ventilation fan provided in the ventilation flow path is a rooftop ventilation fan, and at least one fan is provided at the front and rear of the nori drying building in the direction of the ridge. Partition device. (3) The ventilation fans installed in the ventilation flow path are rooftop ventilation fans, and at least one is installed at the front and rear of the nori drying building in the direction of the ridge, and these rooftop ventilation fans before and after are controlled separately. The drying of seaweed according to claim 2, wherein the seaweed drying air circulation area is divided through a shielding member so that moist air is separately exhausted from the two rooftop ventilation fans. Building partition device. (4) A partitioning device for a seaweed drying building according to claim 2 or 3, wherein the ventilation flow path is opened and closed by a shielding plate. (5) The ventilation fan provided in the ventilation flow path is a ventilation fan with an electric shutter, and at least one fan is provided at the front and rear of the nori drying building in the direction of the ridge. Building partition device. (6) The ventilation fans installed in the ventilation channels are electric shutter-type ventilation fans, and at least one fan is installed at the front and rear of the nori drying building in the direction of the ridge. A patent claim in which the seaweed drying air circulation area is divided through a shielding member so that the fans are controlled separately and the humid air is separately exhausted from the two electric shutter type ventilation fans. A partitioning device for a seaweed drying building according to item 5.