JPH09360A - Shelf having environmental condition adjusting function - Google Patents

Abstract

PURPOSE: To provide the subject shelf having a large number of shelf plates provided therein so as to provide intervals in an up and down direction, controlling the humidity in the shelf without receiving spatial restriction and capable of solving various problems caused by humidity. CONSTITUTION: The shelf is provided with sensors detecting the environmental conditions in shelves 1 to 5 and the environment conditioning devices 17 operated on the basis of the detection outputs of the environmental conditions from the sensors and adjusting at least the environmental conditions in the shelves so as to allow them to approach an objective environmental condition.

Description

Detailed Description of the Invention

[0001]

[Field of Industrial Application] The present invention has a function of adjusting environmental conditions suitable for storing the contents stored in shelves in a library, a cultural property preservation museum, an archive, a museum, a warehouse, a library, a hospital, an underground storage, etc. Concerning a shelf with an environmental condition adjustment function.

[0002]

2. Description of the Related Art A shelf in which a large number of shelves are installed at intervals in the vertical direction.
Documents, films, diskettes, tapes, etc. are stored. Environmental conditions, particularly humidity conditions, are important for maintaining good storage of these stored items, for example, paper. Especially,
With respect to a shelf installed in a room having a work space or an aisle space, a difference in temperature and humidity is likely to occur between the shelf and the space. This is because the shelves have a box shape and block the flow of air. Therefore, the shelves are wrapped in stagnant air, do not follow the air flow in other spaces, and the air on the shelves stagnates. Of this stagnant air, heavy air containing moisture accumulates at the bottom of the shelf and dry air accumulates at the top of the shelf, causing a problem due to the difference in temperature and humidity between these airs. In other words, the stored items stored in the lower part of the shelf will be deteriorated sooner or damaged due to stuffiness caused by the humidity directly or by humidity.

Even if an air conditioner is installed in a room and air conditioning is performed, such a phenomenon is somewhat different in degree because conditioned air does not easily flow in the shelves. However, it may occur in the same way.

On the other hand, the movement of the shelves in the basement is becoming more and more common due to the relaxation of the regulations on the basement, and the occurrence of mold in the underground dense library has become a problem. It is considered that the occurrence of this mold is largely due to the humidity environment. For mobile shelves, it is common to consolidate the shelves at the end of business hours when the shelves are not used, and in the shelves that are densely packed, it is difficult for the conditioned air of the air-conditioning system to flow, and for new buildings. In this room, the concrete floor takes about 3 years to dry, and during that time, a large amount of moisture is generated, which causes the storage environment of the shelves to be impaired.

As a measure against such a problem, a technique for installing a humidity control paper material on the lower surface of the shelf board (see Japanese Patent Laid-Open No. 5-28607), the passage space, the work space, etc. should be sufficiently large. There are technologies such as securing and evenly distributing aisles on the shelves with electric mobile shelves.

[0006]

However, the technique of (1) does not eliminate the cause of the humidity problem, but the effect depends on the degree of sealing of the shelf, and especially when the storage shelf is taken in and out, such as a moving shelf. There is also a question that there is a limit to moisture absorption by the humidity-controlled paper material if it is performed frequently. With regard to the technology of No. 2, there is a problem that the application of this technology is limited because the room is required to have a sufficient space.

The present invention adjusts the environmental conditions to minimize the influence of humidity on the shelves stored in the shelf, prevent biological damage, especially mold growth, and prevent early deterioration without being restricted by space. The purpose is to provide a functional shelf.

[0008]

Means for Solving the Problems In order to achieve the above object, the present invention is as follows. (1) In a shelf in which a large number of shelf boards are installed at intervals in the vertical direction, the environmental conditions in the shelf are It has a sensor for detecting, and an environmental conditioner that operates based on a detected output of the environmental condition from the sensor and adjusts at least the environmental condition in the shelf so as to approach the target environmental condition (claim 1 ).

(2) In the shelf with an environmental condition adjusting function described in (1), the shelf has a box shape as a whole, and one or more of the six surfaces forming a sealed or box shape are open. (Claim 2).

(3) In the shelf with the environmental condition adjusting function described in (1), the target environmental condition is a condition selected according to the characteristics of the items stored in the shelf (claim 3).

(4) In the shelf with the environmental condition adjusting function described in (3), the target environmental conditions are relative humidity of 50% to 70%.
% (Claim 4).

(5) In the shelf with an environmental condition adjusting function described in (1), the environment conditioner is arranged outside or inside the shelf, and the sensor is arranged inside the shelf (claim 5).

(6) In the shelf with an environmental condition adjusting function described in (5), the dry dehumidifier which is an environmental conditioner has an inlet for sucking air in the room where the shelf is installed and an exhaust for discharging the regulated air. An outlet is provided, and the conditioned air from this outlet is discharged into the shelf at the bottom of the shelf (claim 6).

(7) In the shelf with the environmental condition adjusting function described in (6), the dry dehumidifier discharges the vaporized moisture generated in accordance with the dehumidification process in addition to the discharge port for discharging the dehumidified air. And the vaporized moisture from the second outlet is discharged toward the ceiling or the passage side of the room in which the shelves are installed (claim 7).

(8) In the shelf with an environmental condition adjusting function described in (1) to (7), a plurality of movable shelves are used (claim 8).

(9) The shelf with an environmental condition adjusting function described in (1) has an indicator for displaying the environmental condition in the shelf (9).

[0017]

The humidity inside the shelf is controlled by physical means.
The effect of humidity is minimized by convection, and problems caused by various humidity are solved. In addition, the humidity adjustment function was added by taking in vaporized humidity as needed.

[0018]

【Example】

[Outline] This example is an example of a moving shelf among the shelves. The present invention is not limited to the movable shelves described in the following embodiments, but is also applicable to fixed shelves or shelves in which fixed shelves and movable shelves are combined. As an environmental harmony device,
Use a dry dehumidifier. Then, inside the rack moving rack, a sensor for detecting relative humidity is provided as an environmental condition on the lower wall side where humidity is most likely to be high. The detection output of this sensor is output according to the humidity in the shelf. In response to this detection output, that is, when the humidity does not meet the storage conditions in the shelf storage, the dry dehumidifier starts to operate, sucks the air in the upper part of the shelf, and dehumidifies it. , Process air that is warmer than room temperature air is discharged from the bottom of the shelf.

Such convection, which is close to natural convection due to air intake and exhaust of the dry dehumidifier, is generated between the inside and the top and bottom of the shelf to keep the relative humidity constant. This minimizes the effect of humidity and improves the storage environment for stored items. If necessary, a fan or a fan is provided as an auxiliary means for promoting convection.

Further, the moisture taken in by the dry dehumidifier is vaporized and discharged into the room, and then returned to the inside of the shelf to humidify the inside of the shelf and adjust the humidity in the upper and lower parts of the shelf. By doing so, the environmental range of a commonly used indoor air conditioner can be expanded to the inside of the shelf, and the environmental conditions inside the shelf can be adjusted. In this sense, the dry dehumidifier and the sensor in this example can be positioned as the support means of the air conditioner. Further, even when the air conditioner is stopped on a holiday, by driving the dry dehumidifier and the sensor of this example, it is possible to maintain good environmental conditions in the shelf. In addition, the environment inside the shelf can be adjusted to a constant level even in a room without an indoor air conditioner. In this example, since the air flow is close to natural convection, air friction has little effect on the stored items.

The dry dehumidifier is placed on the top plate of the shelf or on the underframe. Placement on the top is less subject to space restrictions. As a duct for the exhaust air from the dry dehumidifier to the lower part of the shelf, a dedicated duct may be used, or panels, columns, various reinforcing members constituting the shelf may be used.

The sensor is installed at the highest humidity location in the shelf. The sensor may be of a type that outputs humidity information, or may be a type that outputs an electrical ON signal when the set humidity value is reached. The output of the sensor is
It is also possible to provide a system in which a microcomputer as a control means is inputted to perform a process of determining whether or not the dry dehumidifier should be operated, and then a command to operate the dry dehumidifier is issued.

If a humidity feedback system based on sensor detection is constructed, the humidity inside the shelf can be maintained within a certain range centered around a predetermined target value. You can

For example, the humidity is 60% for watercolors, 50% for oil paintings, and 40-50% for picture books (temperature 20 ° C). In addition, the growth of worms is promoted under the condition of 70% (temperature of 25 ° C), and in order to suppress it, it is set within 60% (after fumigation treatment).
If the target environmental condition is about 50% to 60% relative humidity at 25 to 25 ° C., it is advantageous for sterilization and preservation of paper. In the library, there is an example in which it is set to 55% (22 ° C). Due to the antibacterial effect, generation of mold can be prevented and damage to the shelves stored in the shelf can be avoided.

Since a dry dehumidifier is used as an environment-friendly apparatus, compared to the case where a wet dehumidifier is used, the work of discarding water is unnecessary, and the accumulated water has little influence on the stored items.

When a shelf is installed in a room where the air conditioner is fully equipped, the air conditioner usually processes unnecessary humidity in the shelf and the air conditioner is stopped on a holiday or at night. By operating the dry dehumidifier of this example below, the effect of conditioned air by the air conditioner can be maintained.

As the shelves, there are movable shelves, self-standing shelves, laminated shelves, and the like in which a plurality of shelves are vertically installed at intervals, and the shelves are box-shaped as a whole. The present invention is widely applied to a hermetically sealed one with a front door, or one of the six faces forming a box shape or one having a plurality of faces open.

[Specific Example] A specific example will be described with reference to the drawings. Figure 1
FIG. 4 illustrates a case where the present invention is applied to a movable rack. In these figures, the mobile shelf is designated by reference numeral 1.
As shown in FIGS. 5 to 5, it is composed of five shelves. Since each of these shelves has a common configuration, the configuration of the shelf 1 will be described as a representative. Therefore, the same reference numerals are used for the components of each shelf.

The underframe 7 is a plate-like member provided horizontally at the bottom of the shelf 1, and the underframe 7 is provided with wheels (not shown) for rail movement. The plate-shaped A panel 1 is arranged so as to be vertically raised from both ends of the underframe 7.
0 and a plate-shaped B panel 11 are provided respectively. A
The top plate 1 is provided on the upper end of the panel 10 and the upper end of the B panel 11.
2 are installed.

In this way, the underframe 7, the A panel 10, the B panel 11, the top plate 12 and the like are formed. A column 14 is provided in the vertical direction between the base frame 7 and the top plate 12 between these members. A panel 1
A large number of shelf boards 15 are installed between the 0 and the B panel 11 at intervals in the vertical direction.

In such a structure, the shelves 1 to 5 are box-shaped as a whole, and one or a plurality of the six surfaces forming the box-shape are open. A handle 16 is provided on the A panel 10. When the handle 16 is rotated, the shelves 1 to 6 move along the rails 8 and 9.

In order to secure a space, these shelves 1 to 5 are generally brought close to one end side as shown in FIG. 1 and are in a dense state so as to contact each other.
Therefore, the condition is such that convection of the air in the shelf is unlikely to occur.

As for the partition 13, the partition 13 may be included in all of the shelves 1 to 5, or only the shelf 1 and the shelf 5, which are the shelves at both ends, may be partition 13.
It is also possible to adopt a configuration including. Shelf 1 and Shelf 6 at both ends,
Further, by putting a partition plate 13 in the central shelf 3, a dry dehumidifier 1
A closed space may be created for each table.

As shown in FIG. 1, when the shelves are moved to one end side, in the structure in which all the shelves are provided with the partition 13, a sheltered space surrounded by the partition 13 is formed in all of the shelves, and both ends are formed. In the configuration in which the partition 13 is provided only for the shelves, one sealed space surrounded by each partition 13 of the shelves at both ends is formed. Therefore, a sensor or a dry dehumidifier is provided depending on how the closed space is formed according to how the partition 13 is provided.

In this example, a dry dehumidifier 17 as an environmental conditioner is installed on each top plate 12 of the shelves 2 and 4. Since the installation modes of the dry dehumidifier 17 and its peripheral devices are the same for the shelf 2 and the shelf 4, the shelf 2 will be described as a representative. As the dry dehumidifier 17, for example, Dryboy 800 (trade name of Kankyo Co., Ltd.) is used. This dry type dehumidifier 17 has an intake port 17a, an exhaust port 17b, a
Has a discharge port 17c.

As shown in FIG. 2, the air in the room is taken into the dry dehumidifier 17 through the suction port 17a. The air taken in passes through a filter provided in the dry dehumidifier, and the dehumidified process air is discharged from the discharge port 17b. The discharge port 17b follows the path in the panel 10 as shown by a two-dot chain line in FIG. 2 through a duct (not shown), and is opened under the underframe 7.

By doing so, the treated air that has been dried and warmed slightly warmer than room temperature is used.
May be released at the site below. When this discharge is performed, this dry air has the property of rising, so it goes up through the underframe 7 and through the gap between the bottom shelf and the underframe 7, and As for each of the shelves 15 formed in the above, ascending through the gaps between the shelves 15 with the columns 14 in between and ascending, and again being sucked from the suction port 17a, convection close to natural convection occurs in the shelves. As means for promoting this convection, it is advisable to appropriately form holes for air circulation in the longitudinal direction of the underframe 7 and the shelf plate 15 over an appropriate range. Alternatively, a pipe having a hole for air circulation may be provided on or under the floor, and the air may be discharged to this pipe or the like.

By driving the dry dehumidifier 17, the moisture accumulated in the filter in the dry dehumidifier is vaporized by the drying heater, and the second outlet 1 shown in FIGS.
It is designed to be discharged from 7c. The second outlet 17c is set toward the ceiling or aisle side of the room in which the shelves are installed.

Since the vaporized moisture discharged from the second outlet 17c is warmer than room temperature air, it stays near the ceiling of the room until it rises and the temperature drops. When the temperature is lowered, it is lowered to the opposite of the process air, and the process air humidifies the inside of the dried shelf. Of the vaporized humidity, unnecessary humidity is processed by the air conditioner while the air conditioner installed in the room is operating. When the air conditioner is not working, such as on holidays and at night, it works to maintain the harmonious air effect.

The discharge of the treated air from the discharge port 17b and the discharge of the vaporized moisture from the second discharge port 17c are performed by the operation of the switching valve in the dry dehumidifier 17 which is interlocked with the switching of the operating state of the dry dehumidifier. For example, after the processing air is discharged for 6 minutes, the vaporized moisture is discharged for 4 minutes, so that it is intermittently switched and driven.

Further, the dry dehumidifier 17 is repeatedly operated and stopped based on the output of the sensor for detecting the environmental condition in the shelf. In FIG. 2, the sensor is shown at 18. Sensor 1
Install 8 in the place with the highest humidity. In this example, the place where the humidity is highest is the lower surface portion of the underframe 7, and therefore, it is installed at that portion. Alternatively, as will be described later, sensors are arranged at three locations, that is, the humidity at the upper part of the shelf, the humidity after the lower part of the shelf, and the humidity at the handle frame side of the underframe part, so that the humidity information of each part is obtained. You can also In this case, if even one of the three sensors is out of the target range, the dry dehumidifier is activated.

The output of the sensor 18 is input to the control means 19. The control means 19 operates a motor that drives the dry dehumidifier 17. The sensor 18 outputs an ON signal at the humidity setting value, and the dry dehumidifier 17 operates based on this ON signal. The humidity set value at which the sensor 18 outputs an ON signal can be arbitrarily selected.

The set value suitable for storing paper is 50%.
It is advisable to set the humidity within the range of -60%. In this example, since the dry dehumidifiers 17 are provided on the shelves 2 and 4, the sensors 18 are also provided in pairs with the respective dry dehumidifiers.

Alternatively, a temperature sensor and a humidity sensor are provided in the shelf, and based on the outputs of these sensors, the temperature display, the humidity display, the temperature and the humidity are taken into consideration, and the level at which mold is likely to occur in the shelf is increased. It is also possible to display a certain display or the like by means of visually appealing.
The indicator as this display means may be provided at a position where the shelf can be easily seen, or may be provided at a wall portion near the shelf, an appropriate place in the room, or the like. In FIG. 3, an indicator 3 provided on the shelf 1
An example of 0 is shown. This indicator 30 is 50 cm to 21 from the floor
It is desirable to provide it at a height of 0 cm.

When a sensor is provided for each shelf, an indicator may be provided for each shelf provided with these sensors, or only one indicator may be provided for the shelf with the worst environmental conditions and the display of that shelf and the environment The conditions may be displayed. The display should be blue for the safety level, red for the bad environment level, and the like, and the color should be changed according to the situation so that it can be easily visually recognized.

It is possible to control the operation of the dry dehumidifier by manual operation based on the display of this indicator, and also in the case of automatically controlling the dry dehumidifier, the indication of the presence or absence of the operation and the environmental condition. It is possible to check whether or not the dry dehumidifier is operating normally by making a determination in conjunction with the display of.

[Experimental Results] Experimental results will be described. Experiment (1) Location: Data room on the 2nd floor Condition: Room air conditioner operation (cooling weak) Start by raising the humidity to 75% Experiment date and time: 21st November 1994 (3 days) Result: About Fig. 6 Recorded the humidity inside the shelf without a dry dehumidifier over time. (A) shows the humidity at the upper part of the shelf, (B) shows the humidity after the lower part of the shelf, and (C) shows the humidity at the handle side of the underframe. It can be seen from FIG. 6 that the maximum difference in humidity between the upper and lower shelves is about 12%. The humidity has dropped to a minimum of 45% due to the operation of the room air conditioner. Regarding FIG. 7, a dry dehumidifier is installed on the moving shelf according to the configuration described in [Specific Example] above. The humidity range could be adjusted to 50% -60%. Even if the room humidity drops to 45% due to the operation of the room air conditioner,
Humidity in the shelf could be reduced to 50%.

From the experiment (1), it is clear that when the present invention is not carried out, the curves (a), (b) and (c) are spaced apart from each other, that is, in the shelf. While the difference in humidity was remarkable, in the case of implementing the present invention (a),
The curves of (b) and (c) converge to indicate that the humidity difference in the shelf disappeared. Therefore, according to the present invention,
It can be said that problems due to the difference in humidity are unlikely to occur.

Experiment (2) Condition: Room air conditioner operation (cooling weak) Experiment date: November 21, 1994 Result: About Fig. 8 Recorded humidity inside shelf without dry dehumidifier installed . (A) shows the humidity at the upper part of the shelf, (B) shows the humidity after the lower part of the shelf, and (C) shows the humidity at the handle side of the underframe. From FIG. 8, the maximum humidity difference between the upper and lower shelves is about 12.5%. Regarding FIG. 9, a dry dehumidifier is installed on the moving shelf in accordance with the configuration described in [Specific Example] above. There is almost no difference in humidity between the upper and lower shelves.

It is clear from the experiment (2) that although the experiment was performed with the room air conditioner operating, the humidity difference inside the moving rack without the dry dehumidifier was 10%. As described above, the effect of the room air conditioner does not reach the inside of the moving shelf. Therefore, even when the air conditioner is installed, the effect cannot be expected for the shelves. Therefore, the present invention can prevent problems caused by the difference in humidity.

Experiment (3) Condition: Comparison of operation and stop of room air conditioner (cooling weak) Experiment date and time: 24 days from November 21, 1994 (3 days) Result: About Fig. 10 Installed dry dehumidifier Record the humidity inside the shelf over time. Room air conditioner is not operating at all. (I)
Shows the humidity at the top of the shelf, (b) shows the humidity after the bottom of the shelf, and (c) shows the humidity at the handle side of the underframe. Regarding FIG. 11, a dry dehumidifier is installed on the moving shelf according to the configuration described in [Specific Example] above. Although the difference in humidity between the upper and lower shelves is about 10%, it can be said that it is almost converged.

It is clear from the experiment (3) that in FIG. 10, the minimum humidity is reduced to about 45% as shown by the symbol P, and the humidity difference is remarkable between the upper and lower parts of the shelf. On the other hand, in FIG. 11, as indicated by reference sign P ′,
It converges at the top and bottom of the shelf, and the humidity is about 52%. It is considered that this is due to the effect of humidification due to the vaporized moisture discharged from the second outlet 17c.

Experiment (4) Condition: Room air conditioner operation (heating slightly weak) Books are loaded on the shelf Humidity increased to 80% and started Experiment date: November 29, 1994 to December 5 (8 days) Result: About Fig. 12 The humidity inside the shelf where the dry dehumidifier was not installed was recorded over time. (A) shows the humidity at the upper part of the shelf, (B) shows the humidity after the lower part of the shelf, and (C) shows the humidity at the handle side of the underframe. The humidity difference between the upper and lower shelves is 12%.
The maximum humidity is 90% and the minimum humidity is 40%. Regarding FIG. 13, a dry dehumidifier is installed on the moving shelf according to the configuration described in the above [Specific Example]. The humidity difference between the upper part and the lower part of the shelf is 5%, which is converged.

From the experiment (4), it is clear that when the present invention is not carried out, the curves (a), (b) and (c) are spaced apart from each other, that is, in the shelf. In contrast to the remarkable difference in humidity, when the present invention was carried out, the curves of (a), (b), and (c) converged even if the shelves were full of books, and the humidity in the shelf It shows that there is no difference.

[0055]

According to the present invention, it is possible to minimize the influence of humidity on the shelves stored in the shelf, prevent biological damage, particularly mold growth, and prevent premature deterioration, without being restricted by space.

[Brief description of drawings]

FIG. 1 is a perspective view of a shelf with an environmental condition adjusting function as an embodiment of the present invention.

FIG. 2 is a front view of a shelf with an environmental condition adjusting function as one embodiment of the present invention.

FIG. 3 is a side view of a shelf with an environmental condition adjusting function as one embodiment of the present invention.

FIG. 4 is a plan view of a shelf with an environmental condition adjusting function as one embodiment of the present invention.

FIG. 5 is a perspective view of a dry dehumidifier suitable for implementing the present invention.

FIG. 6 is a graph showing changes in humidity at the top and bottom of a shelf with the passage of time.

FIG. 7 is a graph showing changes in humidity at the top and bottom of a shelf with the passage of time.

FIG. 8 is a graph showing changes in humidity at the top and bottom of the shelf with the passage of time.

FIG. 9 is a graph showing changes in humidity at the top and bottom of the shelf with the passage of time.

FIG. 10 is a graph showing changes in humidity at the top and bottom of a shelf with the passage of time.

FIG. 11 is a graph showing changes in humidity at the top and bottom of a shelf with the passage of time.

FIG. 12 is a graph showing changes in humidity at the top and bottom of a shelf with the passage of time.

FIG. 13 is a graph showing changes in humidity at the top and bottom of a shelf with the passage of time.

[Explanation of symbols]

 1 Shelf 2 Shelf 3 Shelf 4 Shelf 5 Shelf 17 Dry Dehumidifier 18 Sensor

Claims (9)

[Claims] 1. A shelf, which comprises a plurality of shelf boards arranged at intervals in the vertical direction, and operates based on a sensor for detecting an environmental condition in the shelf and a detection output of the environmental condition from the sensor. A shelf with an environmental condition adjusting function, which further comprises at least an environmental conditioner that adjusts the environmental condition in the shelf so as to approach the target environmental condition. 2. The shelf with an environmental condition adjusting function according to claim 1, wherein the shelf has a box shape as a whole, and one or more of the six surfaces forming a closed or box shape are open. A shelf with an environmental condition adjustment function that is characterized by being 3. A shelf with an environmental condition adjusting function according to claim 1, wherein the target environmental condition is a condition selected according to the characteristics of the items stored in the shelf. shelf. 4. The shelf with an environmental condition adjusting function according to claim 3, wherein the target environmental condition is a relative humidity of 50% to 70%. 5. The shelf with an environmental condition adjusting function according to claim 1, wherein the environmental conditioner is arranged outside or inside the shelf and the sensor is arranged inside the shelf. . 6. The shelf with an environmental condition adjusting function according to claim 5, wherein the dry dehumidifier, which is an environmental conditioner, has an inlet for sucking air in the room in which the shelf is installed and an outlet for discharging the regulated air. A shelf with an environmental condition adjusting function, characterized in that the adjusted air from this outlet is discharged into the shelf at the bottom of the shelf. 7. The shelf with an environmental condition adjusting function according to claim 6, wherein the dry dehumidifier has, in addition to an outlet for discharging dehumidified air, a second dehumidifier for discharging vaporized moisture generated in accordance with dehumidification processing. A shelf with an environmental condition adjusting function, which has a discharge port, and the vaporized moisture from the second discharge port is discharged toward a ceiling or a passage side of a room in which the shelf is installed. 8. A shelf with an environmental condition adjusting function according to any one of claims 1 to 7, wherein the shelf is a plurality of movable shelves. 9. The shelf with an environmental condition adjusting function according to claim 1, further comprising an indicator for displaying an environmental condition in the shelf.