JPH0486477A - drying equipment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a drying device using an adsorbent.

2. Description of the Related Art As shown in FIG. 2, a conventional drying device of this type has an adsorption section 3 filled with granular adsorbent 2 and a heat source device 4 inside a main body 1 of the drying device, and a drying chamber 5 at the bottom. Communication port 6 communicated with
It also has an exhaust lower at the top that is open to the atmosphere.
The communication port 6 and the exhaust lower were opened and closed by an F section damper 8 and an upper damper 9 operated by the force of a solenoid or a shape memory alloy (not shown). Note that 10 is the door of the drying chamber 5, and IOA is the object to be dried.

In the above configuration, when the main power of the drying device is turned on, the drying device continuously operates repeating the following adsorption process and desorption process at regular intervals.

(2) In the adsorption step, the heat source device 4 stops operating, the lower damper 8 is open, and the upper damper 9 is closed.

In such a state, the air containing moisture in the drying chamber 5 is diffused and the moisture is adsorbed by the granular adsorbent 2 filled in the adsorption section 3, so that the air becomes dry air. Therefore, the object to be dried 10A placed in the drying chamber 5 will be dried.

(2) In the desorption process, the heat source device 4 is energized and generates heat, and the lower damper 8 is closed and the upper damper 9 is open. In this case, the air inside the dry LIF main body 1 is heated and rises. When this heated air passes through the adsorption section 3, the moisture adsorbed on the adsorption material 2 is desorbed and discharged from the exhaust lower.

Problems to be Solved by the Invention However, in the above-mentioned configuration, the operation continues even when the internal humidity reaches a certain value, resulting in continuous operation, resulting in unnecessary operation. In other words, energy-saving operation is not performed.

Additionally, since the drying equipment is operated continuously, the equipment that makes up the drying equipment tires quickly (and therefore has a short lifespan).

The present invention solves these conventional problems, and aims to achieve four cost-saving operations of a drying device and extend the life of the device.

Means for Solving the Problems In order to solve the above problems, the drying apparatus of the present invention is provided with a drying section for drying the material to be dried, which has a door, a circulation inlet, and a circulation outlet. A circulating air passage communicating with the inlet and the circulation outlet is provided, and a dehumidifying part having an adsorbent, a regeneration part having a heat source for regenerating the dehumidifying part, and an air blowing part for blowing air to the dehumidifying part are respectively provided in the circulating air path, and A switching means is provided to connect the circulation air path to the circulation inlet and circulation outlet of the drying section when drying the material to be dried, and to connect the circulation air path to a place other than the drying section when regenerating the dehumidification section. Further, the drying section is provided with a humidity detecting means for detecting humidity and a door opening/closing detecting means for detecting opening/closing of the door of the drying section, and the humidity detecting means detects when the humidity of the drying section exceeds a predetermined constant value. or when the door opening/closing detection means detects that the door of the drying section is opened or closed, a control section is provided that regenerates the dehumidifying section for a predetermined period of time by interlocking the switching means, the regeneration section, and the ventilation section. It is something.

Effect of the present invention With the above-described configuration, when the humidity detection means detects that the humidity in the drying section exceeds a certain value, or when the door opening/closing detection means detects that the door of the drying section is opened or closed,
The switching means, the regeneration section, and the blowing section are linked to regenerate the dehumidifying section having adsorption for a predetermined period of time.

EXAMPLE Hereinafter, an example of the present invention will be described based on the accompanying drawings. FIG. 1 is a cross-sectional perspective view of one embodiment of the present invention.

Reference numeral 11 indicates a circulating air passage, and 12 indicates a damper which is a switching means for switching the circulating air passage 11. Reference numeral 3 denotes an adsorbent material which is a dehumidifying part molded into a corrugated shape, and 14 represents an air blower part for supplying air to the adsorbent material 13. 15 is a heat source machine which is a regeneration unit for heating the air supplied to the adsorbent 13, and 16 is a damper 12 and a blower unit! 4. A control unit that controls the heat source device 15. 17 is a mechanical part casing of the drying section 18, 19 is a humidity detection section which is a humidity detection means, and 20
is the door of the drying section 18. And 21 is the door 20 of the drying section
This is a motion detection unit which is a door opening/closing detection means for detecting opening/closing of the door. Next, the operation of the embodiment will be explained. In the above configuration, the humidity detection section 19 detects the humidity inside the drying section 18 and detects that it exceeds a set value, or the operation detection section 21 detects that the door 20 of the drying section 18 is opened or closed. When this is detected, drying starts the following cycle of ``desorption step - adsorption step'' and continues until the humidity inside the refrigerator reaches a certain value or a certain period of time has elapsed.

■ Desorption process In the desorption process, first operate the damper 12 disposed in the circulation air passage 11 to switch the air passage to outside air circulation, and then
4 and start the heat source 8115. Through this operation, the outside air supplied by the blower section 14 is heated by the heat source device 15 to become hot air, which is then supplied to the adsorbent material 13, which desorbs the moisture adsorbed by the adsorbent material 13. Discharge outside of 18.

(2) Adsorption Step In the adsorption step, first, the damper 12 disposed in the circulation air path 11 is operated to switch the air path to circulation within the drying section 18, and then the blower section 14 is started. At this time, the operation of the heat source device 15 is stopped. As a result of this operation, when the air in the drying section 18 supplied by the blowing section 14 passes through the adsorbent 13, the moisture contained therein is adsorbed by the adsorbent 13, becoming dry air, and the air is returned to the drying section 18. It is squirted inside. By carrying out the cycle operation of the desorption process and adsorption process as explained above, it becomes possible to maintain a dry state in the drying section 18 at a constant humidity or lower at all times. Moreover, the operation is performed automatically when necessary and for an appropriate amount of time.

Therefore, there is a labor saving effect, and since the equipment or parts constituting the drying device are operated only when necessary, the life of the drying device is extended as a result.

In addition to the effects of the invention, the drying apparatus of the present invention provides the following effects. Since the drying device is operated only when the humidity inside the drying section exceeds a certain value or when the door of the drying section is opened or closed, the operating time can be shortened. Therefore, power consumption can be reduced, and the life of the equipment or parts constituting the drying section can be extended.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional perspective view of a drying device according to an embodiment of the invention, and FIG. 2 is a cross-sectional view of a conventional drying device. 11...Circulation air path, 12...Damper, 13...Adsorbent, 14...Blower section,
15...Heat source machine, 16...Control unit, 1
8...Drying section, 19...Humidity detection section,
21...Motion detection section.

Claims (1)

[Claims] A drying section having a door, a circulation inlet, and a circulation outlet for drying objects to be dried is provided, a humidity detection means for detecting the humidity of the drying section, and a door opening/closing detection means for detecting opening and closing of the door of the drying section. A dehumidifying part having an adsorbent, a regeneration part having a heat source for regenerating the dehumidifying part, and the dehumidifying part each having a circulating air passage provided in the drying part and communicating with a circulation inlet and a circulation outlet of the drying part. A blowing section that blows air to the drying section is provided in each of the circulation air passages, and when drying the object to be dried, the circulation air passage is communicated with a circulation inlet and a circulation outlet of the drying section, and when regenerating the dehumidifying section. is provided with a switching means for communicating the circulation air path with a part other than the drying section, and the humidity detecting means detects that the humidity in the drying section exceeds a predetermined constant value, or the door of the drying section is closed. A drying device comprising: a control unit that regenerates the dehumidifying unit for a predetermined period of time by interlocking the switching unit, the regenerating unit, and the air blowing unit when the door opening/closing detection unit detects that the door opening/closing detection unit detects that the door opening/closing detection unit has opened or closed the door.