JPS63286635A - Dry type dehumidifier combined with humidifier - Google Patents

Abstract

PURPOSE:To enable dehumidification and humidification of dry type, by providing an absorbent material in a flow passage, and by performing giving and absorbing of water content to and from the absorbent material by outdoor air or by indoor air which passes through the absorbent material. CONSTITUTION:An outdoor air flows through an air passage, and it is heated by a heater 10 to become a hot outdoor air of the temperature of +40 deg.C, passing through a solid absorbent material 11. At that time the humidity that has been absorbed by the solid absorbent material 11 is taken off from the material 11 by the hot air; as a result, the solid absorbent material 11 is recovered. The humidity absorbed by the solid absorbent material 11 flows through the air passage, and it is discharged to outdoors from a casing 1 through a discharqg port 5. When the room temperature is higher than the set humidity of an air humidity sensor, a controlling circuit equipped with a timer is actuated, dampers 4 and 6 are returned to their initial positions, the heater 10 stops operating, and a fan 9 is also stopped, while a fan 7 starts operating, and dry air is supplied to a room.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a dry dehumidification device for domestic or industrial use.

[Prior Art] Conventionally, air conditioners used in homes or industries include a humidifier unit, a dehumidifier unit, and a dehumidifier/humidifier unit.

To give a general explanation of the above devices, humidifiers include, for example, devices that apply ultrasonic vibrations to water to forcibly supply water molecules into the air, and devices that supply air to a filter wetted with water to humidify the air. Examples include devices that humidify water by heating it and turning it into steam, and devices that humidify by blowing out water in the form of a spray.

However, in any of the above humidifying devices, water is supplied directly from the tap, or
It is necessary to refill the water tank.

In particular, when water is supplied into the apparatus from a water tank, the water in the tank may rot and bacteria may grow in the tank.

Therefore, when you start using the device again, contaminated water will be supplied indoors.
There are health and hygiene problems.

Further, as a dehumidifying device, (a) a dehumidifying device that removes indoor moisture as dew in a cooler and collects it in the form of moisture. (b) A dehumidifier that absorbs moisture by attaching a dehumidifier to paper, etc. (c) A dehumidifying device that continuously performs regeneration and dehumidification by arranging dehumidifying material in an annular shape and rotating it can be mentioned.

However, the above device has the following problems.

In other words, in the dehumidifying device (a), a cooler is used to collect indoor moisture in the form of dew, but when the cooling fin temperature falls below 0°C, indoor moisture is collected and adheres to the cooler in the form of mist. However, there is a problem in that the dehumidification efficiency decreases, and if the water receiver for dehumidified water becomes full, it becomes a hassle to discard the water.

Further, in the dehumidifier (b), it is impossible to restore the dehumidifying ability of the dehumidifying material, so there is a problem that when the dehumidifying ability is exhausted, it must be replaced with a new one.

In the dehumidifying device (c), as shown in FIG. 4, the dehumidifying material is arranged in a cylindrical shape in a separately provided cylindrical pipe 41 and rotated.

A regeneration chamber 42 and a processing chamber 43 are provided within the cylindrical tube 41, and the boundary between these chambers is sufficiently sealed to prevent air leakage.

The regeneration chamber 42 and the processing chamber 43 are provided with an air passage 47 for solid adsorbent regeneration and a passage 48 for treated air, respectively, so that each air is continuously supplied into the cylindrical pipe 42. It is in a state of flowing.

Further, the cylindrical solid adsorbent is rotated by a drive motor 44, and continuously regenerates the solid adsorbent and
The structure is such that dry air can be supplied.

In the dehumidifying device as described above, the regeneration chamber 42 and the processing chamber 43 must be sufficiently sealed and the solid adsorbent must be constantly rotated, so the drive motor 44 is required, making the configuration of the device itself complicated. Furthermore, since the cylindrical tube is used as a regeneration chamber and a processing chamber, it is difficult to make the device compact.

In addition, as a conventional dry dehumidification device, there is
There is a device as proposed in Japanese Patent No. 07733, but this device requires water for humidification, so
Piping equipment is required, and since the structure is similar to the dehumidifier in (c), the structure is complicated, such as installing a drive motor and sealing the regeneration chamber and processing chamber, making it compact. It is impossible to

Therefore, there is a problem that it cannot be applied in a narrow space.

[Problems to be Solved by the Invention] The present invention solves all the problems of the conventional dehumidifiers, humidifiers, and dehumidifiers as explained above, and does not require water replenishment during humidification. During dehumidification, the dehumidified water can be discharged outside as humidified air, and the purpose of this design is to provide a very compact dry dehumidification/humidification device that can be used even in narrow closed spaces.

[Means for solving the problems] The present invention provides an air passage provided inside a casing;
an outdoor air intake port and an outdoor air discharge port provided in the air passage; an indoor air intake port and an indoor air discharge port provided in the air passage; and the outdoor air intake port and the air passage. and the outdoor air outlet are in communication with the outdoors, the indoor air intake, the air passage, and the indoor air outlet are not in communication with the indoor air, and the outdoor air intake and when the air passage and the outdoor air outlet are not in communication with the outdoors,
an air passage opening/closing means for communicating the indoor air intake, the air passage, and the indoor air outlet with the indoor air, and a blowing means and a heating means in the air passage. The gist lies in a dry dehumidification/humidification device that is equipped with a solid adsorbent and is characterized in that it heats outdoor air or indoor air and then supplies it to the solid adsorbent depending on the dehumidification and dehumidification of the room.

[Function] In the present invention, in order to perform humidification or dehumidification, an adsorbent is arranged in a flow path, and means is provided for transferring moisture to and from the adsorbent by outdoor air or indoor air passing through the adsorbent. ing. For example, when dehumidifying a room, for example, when the indoor air intake, air passage, and indoor air outlet are in communication with the indoor air, the indoor air is forced into the metal casing through the indoor air intake. The indoor air enters the room, is blown through an air passage in the casing by a blower, for example, a blower fan, reaches the indoor air outlet, and is supplied into the room via the indoor air outlet.

At this time, the indoor air passes through the solid adsorbent provided in the air passage without being heated, and the moisture in the indoor air is adsorbed by the solid adsorbent and is supplied indoors as dry air. Ru.

If the above-mentioned indoor air intake, air passage, and indoor air outlet are not in communication with the indoor air, and the outdoor air intake and outdoor air outlet are in communication with the outdoors, the outdoor air can be aired from the outdoor air intake. is taken into the casing and heats the outdoor air.

The heated air is blown by a blower provided in the air passage, such as a blower fan, and reaches the outdoor air outlet, and is discharged outdoors through the outdoor air outlet. As the heated outdoor air passes through the solid adsorbent provided in the passage, the moisture that was adsorbed in the solid adsorbent in the above process is removed.
It is separated by the heated outdoor air and discharged outside through the outdoor air outlet.

That is, when the apparatus of the present invention operates as a dehumidifier, the above-described processes are performed alternately to maintain a substantially constant indoor dehumidification state.

In addition, when humidifying the room, the outdoor air intake, the air passage, and the outdoor air outlet are communicated with the outdoors, and the outdoor air enters the casing through the outdoor air intake, and the outdoor air is The air is blown through the air passage in the casing by a blower, for example, a blower fan, and reaches the outdoor air outlet, and is discharged outside through the outdoor air outlet.

At this time, outdoor air passes through the solid adsorbent provided in the air passage, moisture in the outdoor air is adsorbed by the solid adsorbent, and the moisture is temporarily retained in the solid adsorbent.

Next, the outdoor air intake, the air passage, and the outdoor air outlet are set to be in a state where they do not communicate with the outdoors, and the indoor air intake, the air passage, and the indoor air outlet are set to be in communication with the room, and the indoor air Indoor air is introduced into the casing through the inlet using a heating means, such as a heater,
The indoor air is heated.

The heated air is blown by a blower, such as a blower fan, provided in the air passageway, reaches the indoor air outlet, and is supplied into the room via the indoor air outlet.

At this time, the heated indoor air passes through the solid adsorbent provided in the air passage, so the moisture that was adsorbed in the solid adsorbent in the process described above is now heated. As a result, sufficiently humidified air is supplied into the room through the room air outlet.

That is, when the apparatus of the present invention is operated as a humidifier, the above-described processes are performed alternately in an attempt to keep the humidity in the room almost constant at all times.

As explained above, the dehumidification/humidification device of the present invention operates as a dehumidification device or a humidification device by switching the switch of the control circuit built into the device, for example, a sequencer. Note that when operating as a dehumidifier or humidifier, the method of taking in and discharging outdoor air and taking in and discharging indoor air is to adjust the flow path in the air passage. For example, but not limited to, a damper or the like may be installed in the indoor air intake and the air passage, respectively.

In the embodiments to be described later, as shown in FIG. 3, which will be explained in detail, a damper 4 may be disposed at the indoor air intake port 2, and a damper 6 may be disposed within the air passage. In the above case, the provided dampers are mechanically interlocked so that they open and close at the same time.

Alternatively, a damper may be installed at each air intake port and each air discharge port as an opening/closing means.

In the above case, the dampers provided at the outdoor air intake and the outdoor air outlet are electrically or mechanically interlocked so that they open and close at the same time. Similarly, the indoor air intake and the dampers provided at the indoor air intake are opened and closed at the same time.

In addition, when using the device of the present invention, for example, an indoor humidity sensor is separately provided and electrically linked with the device of the present invention, and when the device of the present invention is used as a humidifying device, the setting of the indoor humidity sensor is required. If the indoor humidity exceeds the humidity,
A stop signal for stopping the device is applied to a control circuit within the device, and the device is stopped.

In addition, when using the device of the present invention as a dehumidifier, if the indoor humidity falls below the humidity sensor setting,
A signal for stopping the device is applied to a control circuit within the device, and the device is stopped.

Therefore, until a stop signal is sent from the sensor, the device will operate according to the sequence stored in the control circuit when acting as a dehumidifier and similarly when acting as a heating device. It operates according to a sequence stored in the control circuit.

Note that various modifications can be made to the present invention, and an opening/closing means that also opens and closes the outdoor air intake and the indoor air intake, such as a damper, can also be used to open and close the outdoor air intake and the indoor air intake. an opening/closing means that also opens and closes the outdoor air outlet and the indoor air outlet;
For example, it is also possible to install a damper to open and close the outdoor air outlet and the indoor air outlet.

Further, in the present invention, as the ventilation means, for example, a ventilation fan may be disposed at a position where ventilation can be effectively performed, and the number and location thereof are not limited.

Note that the heating means, for example, a heater, is disposed upstream of the adsorbent in the air passage in the casing.

Furthermore, when using the device of the present invention as a dehumidifying device, indoor air may be introduced as air for regenerating the solid adsorbent. The inlet is in communication with the indoors and outdoors, and the indoor air outlet, air passage, and outdoor air intake are in a state where they are not in communication with the outdoors or indoors, and the indoor air is heated and blown to pass through the solid adsorbent. A control circuit may be constructed to absorb moisture in the adsorbent and discharge it as humidified air from the outdoor air outlet.

That is, in the present invention, various control circuits suitable for various uses are possible, and with this circuit, the operation and stop of the opening/closing means, heating means, and blowing means can be set in accordance with the required conditions. Is possible.

In addition, the indoor space described in the present invention also refers to a space in which living things or exhibits that require humidity control exist, in addition to the living space of humans.

Furthermore, in the present invention, if a solid adsorbent as shown below is used, moisture can be adsorbed and desorbed more easily.

That is, a solid adsorbent containing 70% or more of the Si source in terms of SiO2, or 30% or more of the Si source and 40% or less of chloride in terms of SiO2 may be used.

The above adsorbent will be explained in detail below.

(Si Source) FIG. 1 shows the relationship between the amount of 5i02 obtained by converting the silica gel content into Sin and the amount of moisture absorption when silica gel is used as the Si source.

As shown in FIG. 1, by setting the content of the Si source to 70% or more in terms of SiO□, the amount of moisture absorption is significantly improved.

The amount of moisture absorbed in the experiment shown in Fig. 1 above was determined by using colloidal alumina as a binder and using a honeycomb-shaped molded body with a size of 50 x 50 x 50 mm as shown in Fig. 2 at a temperature of 30'C1 relative. 7 with 80% humidity
The test piece was left in an ambient atmosphere for 24 hours, and the amount of moisture absorbed was determined from the change in weight of the test piece before and after the experiment.

In addition, in the above experiment, silica gel was used as the Si source, but the Si source may be arbitrarily selected from silica sand, siliceous zeolite, diatomaceous earth, silicate clay, shirasu, porous glass, silica gel, etc. be able to.

In particular, silica gel is advantageous in terms of performance and economy.

Note that the above-mentioned Si source can be produced manually in the form of powder or granules.

(Chloride) The present inventor also found that the moisture absorption ability can be significantly improved by adding 40% or less of chloride to a material containing 30% or more of Si source in terms of SiO□. I gained knowledge.

In other words, by containing 40% or less of chloride in the material, droplets of chloride aqueous solution are not generated on the surface of the moisture absorbent material.
This makes it possible to maintain the performance of the dehumidifying material over a long period of time without causing the problem of corrosion caused by droplets.

Incidentally, examples of the chloride include lithium chloride, calcium chloride, etc., and lithium chloride is particularly preferred from the viewpoint of economical efficiency.

That is, although silica gel itself is known as an excellent moisture adsorbent, it has a drawback in that its adsorption performance is low when the air used has low humidity. Therefore, in order to maintain high adsorption capacity even when air humidity is low, it is useful to include chloride as a means of improving adsorption performance within the above range, and it is particularly useful for industrial use. It is preferable to contain lithium chloride from an economic standpoint.

In order to incorporate chloride into the material, for example, the material may be molded into a desired shape, dried and/or fired after molding, and the molded product is impregnated with an aqueous solution of chloride and dried.

The method of impregnating with the aqueous chloride solution is not limited either, and any conventional method may be used.

In the method explained above, after obtaining a porous silica molded body,
This is a method of supporting chloride on this molded body, but mixing and
A method may also be used in which chloride is added from the time of kneading and then molded.

In addition, as another component of the above-mentioned solid adsorbent, there is a binder, and there are no particular restrictions on the binder used here. It is possible to use it.

Typical organic binders include MC,
CMC, starch, CMS (carboxymethyl starch), HEC (hydroxyethyl cellulose), HPC
(hydroxypropyl cellulose), sodium ligninsulfonate, calcium ligninsulfonate, polyvinyl alcohol, polyacrylic acid ester, phenol resin, melamine resin, etc. Inorganic binders include, for example, colloidal silica, colloidal alumina, colloidal Examples include titanium, silicates, metal alkoxides, bentonite, kaolinite, sepiolite, attapulgite, and aluminum phosphate.

It should be noted that there is no problem in using two or more of these binders in combination, if necessary.

[Example] The present invention will be specifically explained below by giving examples.

FIG. 3 is an explanatory diagram showing the dehumidification/humidification device according to the present invention.

In FIG. 3, 1 is a metal casing, and an air passage is formed inside this casing 1.

This casing 1 is provided with an indoor air intake port 2 and an indoor air discharge port 3, and a damper 4 for opening and closing is installed on this air intake port 2. It is mechanically interlocked with a damper 6 that also opens and closes the air passages of the air outlet 3 and the outdoor air outlet 5, and is operated by a drive motor (not shown).

Further, a blower fan 7 is installed in the air passage between the indoor air outlet 3 and the damper 6, and is used for blowing indoor air.

Further, 8 is an outdoor air intake port, and the outdoor air is supplied by a blower fan 9 provided near the outdoor air intake port.
It is introduced into the casing 1.

10 is a heater provided in the air passage; 11
is a solid adsorbent made of silica gel.

The dehumidifying and humidifying device configured as described above can easily switch between dehumidifying and humidifying functions using a switch (not shown) provided on the front of the casing 1, and as shown in FIG. For example, if the humidity is lower than the set humidity of a separately provided humidity sensor (not shown), the apparatus is stopped by an electrical signal from the humidity sensor.

When the indoor humidity becomes higher than the set humidity, the device receives an electrical signal from the humidity sensor and turns on as shown in FIG. 5 and starts operating. The dampers 4 and 6 are in the position shown by the solid line, and the indoor air intake 2, the air passage, and the indoor air outlet 3 are in communication with the room, and the blower fan 7 is operated to supply indoor air to the air intake. 2 into the casing 1. This indoor air flows through the air passage and passes through the solid adsorbent 11. The solid adsorbent 11 absorbs moisture in the indoor air, and then the absorbed indoor air is supplied into the room via the indoor air outlet 3.

A control circuit (not shown) equipped with a timer activates the dampers 4 and 6 after 7 minutes as shown in FIG. The air passage and the outdoor air outlet 5 are brought into communication with the outside, and the heater 10 is activated.

That is, after seven minutes have elapsed, the blower fan 7 stops, and the blower fan 9 conversely operates, and outdoor air is taken into the casing 1 through the outdoor air intake port 8.

This outdoor air flows through the air passage, becomes warm air with the outdoor air temperature +40°C by the heater 10, and is heated by the solid adsorbent 11.
pass through. At this time, the moisture adsorbed by the solid adsorbent 11 in the previous process is removed from the solid adsorbent 1, 1- by the warm air, and as a result, the solid adsorbent 11 is regenerated.

Moisture absorbed by the solid adsorbent 11 flows through the air passage and is discharged from the inside of the casing 1 to the outside through the outlet 5 for outdoor air.

The above state is maintained for 3 minutes by the control circuit equipped with the timer, and if the indoor humidity is lower than the set humidity of the humidity sensor, the device receives a stop signal from the humidity sensor and stops. becomes.

Conversely, when the indoor humidity is higher than the set humidity of the humidity sensor, the control circuit equipped with the timer operates, and the dampers 4 and 6 return to the position indicated by the solid line and the heater 10 stops operating. The blower fan 9 also stops, and the blower fan 7 starts operating, supplying dry air into the room.

As described above, the dehumidifying device of the present invention constantly maintains the indoor humidity at a constant level by repeatedly supplying dry air indoors and regenerating the solid adsorbent.

Next, when the present device operates as a humidifying device, if the indoor humidity is lower than the set humidity of the humidity sensor, the present device enters the ON state as shown in FIG. 5 and starts operating. The dampers 4 and 6 are at the positions indicated by the dotted lines, and the outdoor air intake port 8, the air passage, and the outdoor air outlet port 5 are in communication with the outside, and the blower fan 9 is operated, so that the outdoor air is removed from the air intake. It is introduced into the casing 1 through the inlet 8.

This outdoor air flows through the air passage and passes through the solid adsorbent 11. This solid adsorbent 11 absorbs moisture in the outdoor air, and then this dried outdoor air is discharged outdoors through the outdoor air outlet 5.

A control circuit (not shown) equipped with a timer activates dampers 4 and 6 after 3 minutes as shown in Fig. 6, and the dampers 4 and 6 move to the positions indicated by the solid lines in Fig. 3, and the indoor air intake port 2 and The air passage and the indoor air discharge port 3 are in communication with the room, and the heater 10 is activated.

That is, after three minutes have elapsed, the blower fan 9 stops, and the blower fan 7 conversely operates, and indoor air is taken into the casing 1 through the indoor air intake port 2.

This indoor air flows through the air passage, becomes warm air with the indoor air temperature +40°C by the heater 10, and is heated by the solid adsorbent 11.
pass through. At this time, the moisture adsorbed by the solid adsorbent 11 in the previous process is removed from the solid adsorbent 11 by the warm air, and as a result, the solid adsorbent 11 is regenerated.

Indoor air containing moisture absorbed by the solid adsorbent 11 flows through the air passage as humidified air, and is supplied into the room from within the casing 1 via the indoor air outlet 3.

The above state is maintained for 7 minutes by the control circuit equipped with the timer, and if the indoor humidity is lower than the set humidity of the humidity sensor, the device repeats the above process.

Conversely, if the indoor humidity is higher than the humidity sensor setting, the device stops.

In addition, the specifications of the device of the present invention described above are as follows:
Source: 100V Indoor circulation air volume: 60rn"/hr Outdoor circulation air volume: 30rr?/hr Heater electric capacity: 300W Solid adsorbent dimensions: 60'nm x 130'mm x (
Silica gel 50'mm (390c c
)Honeycomb dimensions) Equipment dimensions: 466'mm x 270 LmmXl
The dehumidification and humidification conditions in a 3rn' closed room of a device with a diameter of 11' mm or more were investigated.

FIG. 7 and FIG. 8 show the results of an investigation when the device of the present invention was used in the above-mentioned closed room.

That is, as shown in Fig. 7, when the device of the present invention is used as a dehumidifying device, when the temperature outside is 24°C x 65% RH, the indoor humidity is 93% before the device starts, but after 40 minutes was 6.0%, indicating a good dehumidifying effect.

Furthermore, as shown in Fig. 8, when the device of the present invention is used as a humidifier, when the temperature outside is 24°C x 65% RH, the indoor humidity is 22% before the device starts, but after 33 minutes, It was 93%, indicating a good humidifying effect.

[Effects of the Invention] As explained above, according to the present invention, during dehumidification,
Since the moisture generated by dehumidification can be discharged outside as humidified air, there is no need to dispose of the dehumidified water droplets, and no water is required during humidification, making it possible to achieve good humidification. Moreover, it can be made into an extremely compact device.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the relationship between the amount of 5i02 obtained by converting the silica gel content into SiO2 and the amount of moisture absorption when silica gel is used as the Si source, and FIG. It is a figure showing a molded object. FIG. 3 is an explanatory diagram of the dry dehumidification/humidification device of the present invention. Fourth
The figure is a schematic diagram of a conventional rotor type dehumidifier. Fifth
7 and 6 are sequence diagrams of the apparatus of the present invention, and FIGS. 7 and 8 are diagrams showing the results of investigation of the functions of the apparatus of the present invention. 1...Casing, 2...Indoor air intake, 3.
...Indoor air discharge port, 4.6...Damper, 7,9
...Blower fan, 8...Outdoor air intake, 10.
...Heater, 11...Solid adsorbent, 5...Outdoor air outlet, 41...Cylindrical pipe, 42...Regeneration chamber, 4
3... Processing chamber, 44... Drive motor, 45...
Filter, 46... Heater, 47... Regeneration air passage, 48... Processing air passage. Fig. 1 5iOz name 4 quantity (!tf%) 1 Fig. 2 ↓ Fig. 3 Fig. 4 Fig. Processing outlet (dry air) Fig. 5

Claims (4)

[Claims] (1) An air passage provided inside the casing, an outdoor air intake and an outdoor air outlet provided in the air passage, and an indoor air intake and indoor air outlet provided in the air passage. When the discharge port, the outdoor air intake port, the air passage, and the outdoor air discharge port are in communication with the outdoors, the indoor air intake port, the air passage, and the indoor air discharge port does not communicate with the indoor air, and when the outdoor air intake, the air passage, and the outdoor air outlet do not communicate with the outdoors, the indoor air intake, the air passage, and the indoor air and an air passage opening/closing means for communicating the discharge port of the air passage with the room, and a blowing means, a heating means, and a solid adsorbent are disposed in the air passage, and the air passage has a means for opening and closing the air passage, and a blowing means, a heating means, and a solid adsorbent are disposed in the air passage. A dry dehumidification/humidification device characterized by heating outdoor air or indoor air and then supplying the air to a solid adsorbent according to the humidification. (2) Solid adsorbent absorbs 70% Si source in terms of SiO_2
(The same shall apply below weight%) or S
i source is 30% or more in terms of SiO_2 and chloride is 40%
A dry dehumidifying and humidifying device according to claim 1 contained below. (3) Claim 2 in which the chloride is lithium chloride
The dry dehumidifier and humidifier described in section. (4) The dry dehumidification device according to any one of claims 1 to 3, wherein the solid adsorbent is honeycomb-shaped silica gel.