JPH07275640A - Air dehumidifier - Google Patents

Abstract

PURPOSE: To efficiently dehumidify air with a simple structure by two check valves to an air duct and furnishing a closed air circuit connected to the outside air to the one valve opening by one air flow direction and another closed air circuit connected to an enclosure to the other valve. CONSTITUTION: Valves, especially two check valves 22 and 23 automatically opened in the opposite direction, are provided to the inlet end 14 and outlet end 15 of air ducts A to D. The outside air 19 is sucked into an air circuit 30 by a fan from the inlet end 14, then passed through the opening 20 of the check valve 22 automatically opened in the air flow direction, passed through an air dehumidifying matrix 3, then passed through the opening 21 controlled by the check valve 23 opened outward and forced out toward the outside. In the case of a backward fan, the air from an enclosure 24 is introduced into a duct from the opening, passed through the dehumidifying matrix 3 and returned to the enclosure 24 through an opening 12 controlled by a check valve 31. The process is controlled by a control unit 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION An air dehumidifier combined with a fresh air supply comprising a fan, a fixed air dehumidifying matrix, an air heating means, and a control means for reversing the air flow through the air dehumidifying matrix. An air flow circuit is provided from outside the enclosure to be dehumidified to return to the enclosure through an air dehumidification matrix, and in the reverse air flow to be dried from outside the enclosure to an outer space through air heating means.

[0002]

BACKGROUND OF THE INVENTION Compared to so-called air conditioning systems, air dehumidifiers are used indoors in such a way that people feel comfortable or that corrosion or mildew of articles stored in or in the enclosure is suppressed. It is known as an energy-saving device that regulates the humidity of air. More specifically, in an enclosure in which electronic data processing and control devices (eg computers) and their components (eg chips and microprocessors) are installed, or in equipment for manufacturing such devices and components, foods, condiments. Thin moisture films should also be avoided in storage and production facilities for perishable items such as herbs, herbs and dried mushrooms, and in enclosures for other dry items.

Further, the function of the air lock is improved by a simple and energy-saving type air dehumidifier. The energy savings by means of an air dehumidifier are due in particular to the fact that the room temperature can be adjusted even lower in dry enclosures that are individually dehumidified.

Known conventional air dehumidifiers are provided with a cylindrical structure of an air dehumidification matrix, the air being constantly dried into one or more segments during the rotation of the cylinder where the air stream passes through the axial method. The individual streams of air passing through the stream, while regenerating the air dehumidifying matrix, pass through the other cylindrical segment.

[0005]

In this way, the two oppositely flowing air streams passing through the cylindrical air dehumidifying matrix are sealed to each other in the area of the cylinder, which makes them easy to operate and maintain. There are none and the cost will be required. However, in particular the energy loss stems from the fact that there is always heat flowing from the heated barrel segment to the unheated segment.
Intermittently operated air dehumidifiers are also known in which air from an enclosure to be dried is drawn through an air dehumidification matrix over a period of time, for example 2-6 minutes. And then dehumidified) and then back to the enclosure, whereupon the air from outside the dehumidified enclosure is drawn through the air dehumidification matrix for another period of 1-2 minutes for its regeneration. And then discharged outside the enclosure to drain the removed moisture. These air dehumidifiers have low power requirements, but have the disadvantage that the intermittent switching operation of the dehumidified air flow causes problems for the user as far as adaptation to noise is concerned. The user is constantly disturbed and restless by the air flow switching operation. The regeneration stage only requires about 1/4 of the total process cycle time. That is, the device will operate for 1.5 minutes during the regeneration phase and 4.5 minutes as an air dehumidifier. In a short regurgitation cycle, regurgitation may need to occur every 3 seconds, for example. SUMMARY OF THE INVENTION It is an object of the invention to provide an air dehumidification device which also guarantees a constant continuous air flow, can be manufactured in a simple manner and consumes less energy, in combination with a fresh air supply.

[0006]

The air dehumidifier of the present invention is capable of accommodating various air dehumidification media with respect to its cycle and its internal structure prevents or minimizes the production of bacteria and viruses. To suppress it, the construction is as simple as possible, i.e. a smooth laminar duct is provided. Therefore, the air dehumidifier of the present invention,
It is also suitable for distributed applications.

The invention consists of an air dehumidifier which also comprises a fresh air supply consisting of several airflow ducts arranged adjacent to each other and independent of each other, at least a part of said ducts being a common partition. Air having a wall, wherein in said air flow duct, a fixed air dehumidifying matrix, a fan, an air heating means and an air flow reversing means are individually arranged and at each end axially spaced apart from one another At the inlet and outlet ends of the flow duct,
A valve, in particular two check valves which are automatically actuated in opposite directions, is provided, a valve actuated by one of the air flow directions is provided with a closed circulation of air which is connected to the atmosphere and the other air The flow direction actuated valve is provided with another closed air circulation connected to the enclosure, the air in the circulation is dehumidified and program controlled to optimally operate all air flow ducts with each other. A control unit for performing is provided.

An air dehumidifier having a relatively large air flow cross section has a large range of variations in its operation because it can be subdivided into several small air flow ducts which can be positioned side by side with respect to each other or with respect to each other. In this way, the control unit can be program-controlled to provide a continuous supply of fresh air, but it can be provided with another opening which can be actuated by the program-control, said opening being provided with a regeneration air stream. As a backflow of warm air in the enclosure and / or a flap to supply fresh air at a predetermined time interval and flow rate. This subdivided arrangement makes it possible, for example, to change the type of dehumidifying gel depending on the climatically required dehumidifying function.

Furthermore, in terms of temperature, the individual airflow ducts can be adapted in a more favorable manner, for example by suitable cycle intervals (eg according to claim 4 of the patent) to successive process steps. The present invention comprises a further improved air dehumidifying matrix, the effective body of which is provided with a particulate material, preferably silica gel, which is contained between air-permeable walls, in particular porous or screen walls. . The effective particulate body of the air dehumidification matrix was maintained in place so that it was not moved relative to the air passing between the supporting surfaces, each one of the surfaces being stamped to hold particulate matter. Surface structures, for example corrugated structures, are provided. Alternatively, the active particulate body of the air dehumidifying matrix can be adhered to the support surface by means of a high temperature resistant adhesive. For a clearer understanding of the present invention, a preferred embodiment will now be described in detail with reference to the accompanying drawings.

[0010]

1 and 2, the partition wall 7 isolates the ambient air 19 from the air dehumidifying enclosure 24, whereby the closed air circulation 30 connected to the ambient air 19 is
It is formed via an air conduit 29 through each of the air flow ducts AD. The fan 4 is arranged to be driven by an electric motor 28 in the air flow ducts A to D of the air dehumidifier 10 which are separated from each other by a partition wall 13. The rotation direction of the fan or the blade adjustment can adjust the direction of the air flow in each of the air flow ducts A to D by the air flow reversing means 5, and reverse the air flow in the opposite direction at an arbitrary time and at an optimum time interval. can do. Backflow of airflow can also be achieved by reorienting the fan, instead of reversing the rotation of the fan or using reversible vanes.

In FIG. 1, the air stream is passed through the air heating means 6 and subsequently through the air dehumidifying matrix 3. In the individual process stages of the air dehumidifier, namely the regeneration stage in its airflow duct, shown in FIG. 1, the ambient air 19 is drawn into the air circulation 30 from the inlet end 14 by the operation of the fan and then the air. Controlled by a check valve 23 which is drawn in through the opening 20 of a check valve 22 which opens automatically in the direction of flow and subsequently passes through the air dehumidifying matrix 3 towards the outlet end 15 and then outwards. It is swept outward through the opening 21. During that time, the switch of the air heating means 6 is turned on. In order to avoid merging with each other and losing energy, the outlet end 15 and the inlet end 14
Are separated from each other.

In the case of the reverse fan 4 (FIG. 2), the air from the enclosure 24 is drawn into the interior 11 of the airflow duct through an opening 26 operated by a check valve 25 which opens automatically inward. Check valve 31 that automatically opens outward through the air dehumidifying matrix 3
Return to the enclosure that keeps the air dry through the opening 12 controlled by. At that time, the switch of the air heating means 6 is turned off.

With respect to the air circulation 17 connected to the enclosure 24, the moisture content of the air in the air dehumidifying matrix 3 is absorbed by means of silica gel material provided on the surface of the matrix. This silica gel has different effectiveness, and those with high effectiveness are expensive. The air thus dried returns to the enclosure 24.

The air dehumidifying matrix 3 contains, as an effective dehumidifying agent, silica gel having a heat resistance up to 95 ° C., another air desiccant such as a ceramic type, or another absorbent such as lithium chloride. Matrix 3
Can also be arranged as a molecular strainer, or can be provided with an absorbent that is adhered to the metal surface by a heat resistant adhesive. If a particulate material or other particulate dehumidifying agent is used, the particulate material is prevented from moving with respect to the passing air, for example by frictional contact between corrugations, and in combination with a facing plate having a smooth surface. It is maintained at the predetermined position by matching. Alternatively, it may be arranged as a dehumidifying bed in a compartment having a mesh sieve or an orifice plate. The particle size of the granular material is, for example, less than 0.6 mm. It is also convenient to keep the particulate substances or particles in place within the absorbent cotton or thread web, mesh or freeze, for example by means of adhering them together.

During the regeneration phase according to FIG. 1 with the fan 4 in the reverse direction, ie in the opposite direction of the air flow 30, the outside air 19 passing through the opening 20 controlled by the check valve 22 which automatically opens inward, is, for example, It is heated by an electrically heated air heating means. Moisture absorbed in the matrix is expelled by the heated warm air. In this way the air dehumidifying matrix 3 is regenerated for the subsequent absorption of moisture.

A fresh air flap 16 is provided which is selectively switched to provide fresh air intermittently.
This flap is opened by another program, for example at the end of the regeneration phase or between the regeneration and drying phases,
Fresh air can also be supplied to the enclosure 24. At the same time, the latent heat content at the end of the regeneration stage is used for preheating the fresh air, so that the fresh air is also predried.

The control unit 9 comprises a separate airflow duct A
Control alternating programs of each airflow process stage of ~ D and their optimal conditions. Depending on the effectiveness requirements of the dehumidifier and the efficiency of the dehumidifying gel, the individual regeneration steps can be carried out in some combination. Since the airflow rate during the dehumidification stage can be controlled or adjusted differently than during the regeneration stage, various optimizations can be achieved depending on the moisture content within the enclosure 24 and the properties of the silica gel.

For example, in FIG. 3 (one above the time line t)
Shows three airflow ducts (indicated by solid lines) which act as air dehumidifiers by means of a program of the control unit 9, while a fourth individual airflow duct (timeline t
Below, indicated by the dotted arrow pointing backwards) is in the regeneration phase. 4 and 5, another process program is shown in analog.

[Brief description of drawings]

1 shows an air dehumidifier of the invention, showing four airflow ducts and an airflow duct at the front of the longitudinal section.

2 is an air flow duct according to FIG. 1 shown in longitudinal section, but showing the air flow being counter-flowed in the opposite direction;

FIG. 3 is a possible airflow backflow program, combining four airflow ducts with each other.

FIG. 4 is a possible airflow backflow program, combining three airflow ducts with each other.

FIG. 5 is a possible airflow backflow program combining two airflow ducts with each other.

[Explanation of symbols]

3 Air Dehumidification Matrix, 4 Fan, 5 Air Flow Reversing Means 6 Air Heating Means, A to D Air Flow Ducts.

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[Procedure amendment]

[Submission date] April 14, 1994

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

[Figure 1]

[Fig. 2]

[Figure 3]

[Figure 5]

[Figure 4]

Claims (8)

[Claims] 1. In an air dehumidifier, which also comprises a supply of fresh air, consisting of several airflow ducts arranged next to one another and independent of one another, at least part of said ducts having a common partition (13). In the air flow duct, a fixed air dehumidifying matrix (3), a fan (4), an air heating means (6) and an air flow reversing means (5) are individually arranged and at each end. At the inlet and outlet ends (14, 15) of the airflow ducts which are axially spaced apart from each other, there are provided valves, in particular two non-return valves which operate automatically in opposite directions, one of which The valve operated by the air flow direction is provided with a closed circulation part (30) of air connected to the outside air, and the valve operated by the other air flow direction is closed closed of another air connected to the enclosure. Division (17) Is provided for dehumidifying the air in the circulation part, and a control unit (9) for performing program control so as to optimally operate all the air flow ducts with each other is provided. 2. The air dehumidifier according to claim 1, wherein the control unit (9) performs program control so that air is continuously supplied to the enclosure, that is, the air dehumidification circulation section. 3. A further controllable opening is provided which has a flap for backflowing the warm air of the enclosure as a regeneration air stream and / or a flap for supplying ambient air at a predetermined time interval and flow rate. An air dehumidifier that also serves as fresh air supply according to claim 1. 4. The control unit (9) provides program control so that the switches of the air heating means (6) are switched off at a predetermined time interval before individually reversing the air flow of the fan. The air dehumidifying device according to any one of claims 1 to 3, wherein 5. Airflow duct (A, B, C or D)
2. An air dehumidifier according to one of the preceding claims, characterized in that the adjacent sides are insulated from each other, in particular in the area of the air dehumidifying matrix (3) and the air heating means. 6. The active body of the air dehumidifying matrix (3) is characterized in that it is provided with a particulate substance, preferably comprising silica gel, which is enclosed between air-permeable walls, in particular porous or screen walls. Claim 1 above
An air dehumidifier according to any one of 5 to 5. 7. An effective particulate body of an air dehumidifying matrix (3) is maintained in its position so as not to be moved by the air passing between the supporting surfaces, one of the surfaces being particulate matter. An air dehumidifying device according to any one of claims 1 to 5, which is provided with a stamped surface structure for holding a corrugated structure. 8. An air dehumidifier according to claim 1, wherein the effective particulate body of the air dehumidification matrix (3) is adhered to the support surface by means of a high temperature resistant adhesive.