JPH04114714A - Drying device - Google Patents

Abstract

PURPOSE:To rapidly make the humidity of a drying chamber lower and maintain its interior at a constantly low humidity by a method wherein a dehumidifying part, a regeneration part, an air passage and an air blowing part are provided using an adsorbing agent and a moisture absorbing sheet is attached to the interior of the drying chamber. CONSTITUTION:The flow of air in a drying space induced by an air blower 3 is supplied into a dehumidifying part 1 and, since this air is returned into a drying chamber 7 after dehumidifying thereof in the dehumidifying part 1, the humidity of the interior of the drying chamber 7 is reduced to a lower value extremely rapidly. At this time, a moisture absorbing sheet 8 attached to the wall of the drying chamber releases the moisture reserved therein up to this point, since the interior of the drying chamber is in a low humidity. As a result, the interior of the drying chamber and the moisture absorbing sheet 8 become dry rapidly and, at this point, the operation of a drying device is stopped. Supposing that the door of the drying chamber 7 is opened and closed, the interior humidity of the drying chamber 7 increases temporarily due to air ventilation. However, the increased portion of the moisture accompanied by such an air ventilation is absorbed immediately by the moisture absorbing sheet 8 in a drying condition and the interior of the drying chamber 7 can be maintained in a low humidity without resuming the dehumidifying operation.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a drying device that can maintain a stable dry state by using an adsorbent and providing a moisture absorbing sheet or the like on the wall surface of the drying chamber.

BACKGROUND OF THE INVENTION In recent years, drying apparatuses equipped with a dehumidifying section for dehumidifying moisture in a drying chamber have become mainstream.

As shown in FIG. 2, the conventional drying device includes a drying chamber 11 made of synthetic resin, a dehumidifying section 13 made of pellet-like adsorbent and a heater 12, and a damper for releasing moisture to the atmosphere during regeneration. The drying chamber 11 is composed of a control section 14 and a control section 15 that manages the operation of the heater 12, and the moisture in the drying chamber 11 reaches the dehumidification section 13 by diffusion and is adsorbed. Then, after a certain period of time has passed, the control unit 15 energizes the heater 12 to regenerate the adsorbent in the dehumidifying unit 13. This regenerated air is released to the atmosphere by opening the damper section 14, and the regeneration of the dehumidifying section 13 is completed. By repeating this adsorption and regeneration at regular intervals, the drying chamber 11 is kept in a low humidity state.

Problems to be Solved by the Invention In such a conventional drying device, the moisture inside the drying chamber 11 is
Since it is supplied to the dehumidifying section 13 by diffusion, it is difficult for the inside of the drying chamber 11 to reach a low humidity state, and even if the humidity decreases to some extent, it takes a very long time. Further, when the door of the drying chamber 11 is opened or closed, there is a problem that the humidity inside the chamber easily returns to the atmospheric state due to ventilation due to the opening and closing of the door, since the inner wall of the drying chamber 11 does not have a moisture absorbing effect.

The present invention solves the above problems, and provides a drying bag that can quickly bring the inside of the drying chamber to a low temperature state and maintain a stable low temperature condition even when the door of the drying chamber is opened and closed. is intended to provide.

Means for Solving the Problems In order to achieve the above object, the present invention provides a dehumidification section made of an adsorbent, a regeneration section comprising a heat source device having a heat exchanger provided upstream of the dehumidification section, and a dehumidification section made of an adsorbent. an air blowing section that sends air to the drying space and the regeneration section; an air passage section that communicates the air blowing section with the inlet and outlet of the drying space; and an air passage section that connects the air passage section with the circulation flow in the drying space and the circulation flow in the space other than the drying space. The apparatus includes a damper section for switching, a control section for controlling the regenerating section, the blower section, and the damper section, and a hygroscopic sheet pasted on the wall of a drying chamber that forms the drying space inside.

Function In the drying device of the present invention, with the above configuration, when the damper section forms an air path communicating with the drying space, the air in the drying space induced by the blowing section is supplied to the dehumidifying section. This supplied air is dehumidified in the dehumidifying section and then returned to the drying chamber, so that the inside of the drying chamber becomes a low humidity state in an extremely short period of time. At this time, the moisture-absorbing sheet on the wall of the drying chamber releases the moisture that had been stored until then, since the inside of the drying chamber is in a low temperature state. As a result, both the inside of the refrigerator and the moisture-absorbing sheet can be brought to a dry state in a short time. At this point, the operation of the dryer is stopped. If the door of the drying cabinet is opened and closed, the temperature inside the drying cabinet will increase over time due to ventilation. However, since the moisture accompanying this ventilation is immediately absorbed by the dry dehumidifying sort, the inside of the drying chamber can maintain a low humidity state without restarting the dehumidifying operation.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to FIG. As shown in the figure, a regeneration section 2 consisting of an electric heater with a heat exchanger is provided upstream of a dehumidifying section 1 made of an adsorbent, and an air blowing section 3 consisting of an air blower and a duct is provided upstream of the dehumidifying section 1. The outlet of the blower section 3 and the outlet of the regeneration section 2 are communicated with the drying space through an air path 4. A damper section 5 is provided which is opened when the dehumidifying section 1 is regenerated to switch between the drying space and the other spaces. In addition, the playback section 2,
The blower section 3 and the damper section 5 are configured to be controlled by a control section 6, and the drying chamber 7 serving as a drying space is
The air passage 4 communicates with the dehumidifying section I, and the inner wall of the drying chamber 7 has a
A moisture absorbing sheet 8 is stretched.

Next, the operation of the configuration of this embodiment will be explained. In the drying device of the present invention, when the damper section 5 constitutes the air passage 4 communicating with the drying space and the inside air circulation air passage with the above configuration, the air in the drying space induced by the air blowing section 3 is transferred to the dehumidifying section l. is supplied to

This supplied air is dehumidified in the dehumidifying section 1 and then returned to the drying chamber 7. The inside of the drying chamber 7 reaches a low temperature state in an extremely short time. In this case, the moisture-absorbing sheet 8 stretched on the wall of the drying chamber releases the moisture that had been stored in the moisture-absorbing sheet 8 because the inside of the drying chamber is in a low humidity state. As a result, both the inside of the refrigerator and the moisture absorbing sheet 8 become dry in a short time. At this point, the operation of the dryer is stopped. The decision to stop operation is based on the number of times the operation is repeated, the operating time, the humidity inside the refrigerator, etc. If the door of the drying chamber 7 is opened and closed at this point, the humidity inside the drying chamber 7 will decrease due to ventilation. Increases over time. However, since the moisture accompanying this ventilation is immediately absorbed by the dry moisture absorbing sheet 8, the inside of the drying chamber 7 can maintain a low humidity state without restarting the dehumidifying operation.

Effects of the Invention As is clear from the above embodiments, according to the present invention, while using an adsorbent, a dehumidification section, a regeneration section, an air passage section, and a ventilation section are provided, and furthermore, by placing a moisture absorption sheet in the drying chamber, A drying device that provides the following effects can be provided.

(1) Dry air can be created by forcibly blowing the humid air inside the drying chamber with a blower.

By supplying the second dry air into the drying chamber, the inside of the drying chamber can be quickly brought into a low humidity state.

(2) By placing a moisture-absorbing sheet on the inner wall of the drying chamber, sudden changes in humidity inside the chamber, such as when the door is opened and closed, can be absorbed. As a result, there is no need to restart the dehumidification operation every time the humidity changes due to door opening/closing, etc., resulting in energy savings.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a drying device according to an embodiment of the present invention, and FIG. 2 is a sectional view of a conventional drying device. l... Dehumidification section, 2... Regeneration section, 3...
...Blower section, 4...Air passage section, 5...
・Damper section, 6... Control section, 7... Drying chamber, 8... Moisture absorption sorting. Name of agent: Patent attorney Akira Okaji and two others Kiyoshi Kanmisaki

Claims (1)

[Claims] A dehumidifying section made of an adsorbent, a regenerating section comprising a heat source device having a heat exchanger provided upstream of the dehumidifying section, a blowing section that sends air to the dehumidifying section and the regenerating section, and the blowing section and a drying space. an air passage section that communicates the inlet and outlet of the air passage section, a damper section that switches the air passage section between a circulating flow in the drying space and a circulating flow in a space other than the drying space, and a control that controls the regeneration section, the blower section, and the damper section. A drying device comprising: a drying chamber having a drying space formed therein;