JP2005144316A - Dehumidification method and apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for regenerating a desiccant in a dehumidification apparatus. <P>SOLUTION: A desiccant (14) used to dehumidify humid air present inside a building (20) suffering from a flood is dehumidified. The collected humid air is released by using atmospheric air sucked from the overhead and surrounding of a heat exchanger (12) ignited with a diesel fuel. The humid air is sucked from the building (20) through a duct work (72) and the desiccant (14) by means of a blower (26). The desiccant (14) is dried by the atmospheric air sucked from the surrounding of the heat exchanger (12) through a duct work (70) by means of a blower (24). The desiccant (14) may be in the form of a silica gel wheel 90 (FIG.2). <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to air dehumidification and generally to the reviving industry, and more particularly to drying flooded buildings. Furthermore, the present invention relates to diesel fuel heated desiccant revival.

  Mobile dry dehumidifiers are increasingly being used to dry flooded buildings and reduce health problems due to the occurrence of early mold. Furthermore, as is well known, silica gel is often used as a desiccant in the wheel, in which humidified air is drawn from walls, flooring, concrete, etc. into the dehumidification chamber. The silica gel or other desiccant used absorbs moisture, but it is necessary to heat the desiccant to release the absorbed moisture. Therefore, this acts to optimize the operation in a continuous cycle, and the desiccant continuously absorbs moisture in the building. Where large dryers are used, the required thermal energy is generally provided by electrical heating or propane gas heating. However, both of these methods have problems in terms of reviving the desiccant.

  For example, the electric heating method requires a large amount of power that cannot be used in many damaged buildings. On the other hand, the use of a separate device with a generator adds an additional expense due to rental with associated high fuel costs. On the other hand, the propane gas ignition dehumidifier has a number of drawbacks. That is, a) specific permission is often required for transporting propane gas to the work site by trailer or other vehicle. b) Additional permission is required for work with propane gas at the work site itself. c) Propane gas resupply is not readily available when the building to be dried is at a remote location, or when resupply is required at midnight or Sunday. d) Ignition of the dehumidifier with propane gas produces a moisturizing effect that unnecessarily wets the processing air to be dried. e) Propane gas itself is highly flammable.

  In addition, as there is a continuing need to restore silica gel or other desiccants, these types of dehumidifiers are continuous whether run on a trailer bed or unloaded next to a building. Used.

  An aspect of the present invention is to seek the provision of a new and improved method of restoring the desiccant in these dehumidifiers.

  An aspect of the present invention is to seek to provide such a revival method without adding an offset limitation.

  A further aspect of the present invention is to seek to provide such a revival method that is readily available and economical to operate.

  In order to achieve the above-described object, the present invention basically employs a technical configuration as described below.

That is, the first aspect of the dehumidifying device according to the present invention is:
A device for dehumidifying the humidified air present in the building (20) from its external location, comprising a container (10), in a heat exchanger (12), a desiccant (14), in a first direction A first blower (24) for sucking air from outside the container above the heat exchanger through the desiccant; a second blower (26) for sucking the humidified air through the desiccant in the second direction; and diesel Dehumidifying the humidified air containing the means (18) for igniting the heat exchanger with fuel;
The second aspect is
The container (10) is placed on a large ground near the building (20) where the humidified air exists.
The third aspect is:
The container (10) is placed on a trailer or a track bed in the vicinity of the building (20) where the humidified air exists.
The fourth aspect is
The desiccant (14) comprises a silica gel mixture;
The fifth aspect is:
The desiccant (14) comprises a rotating silica gel wheel;
The sixth aspect is
The first and second blowers (24, 26) suck the atmosphere and the humidified air in the opposing direction through the desiccant (14).

In addition, the first aspect of the dehumidifying method according to the present invention is:
A method of dehumidifying the humidified air present in the building (20) from its external location, comprising the step of preparing a dehumidifying chamber (10) comprising a heat exchanger (12) and a desiccant (14);
Sucking air from outside the building above the heat exchanger through the desiccant in a first direction;
Sucking humidified air from inside the building through the desiccant in a second direction;
Igniting the heat exchanger with diesel fuel;
It dehumidifies the humidified air consisting of
The second aspect is
The desiccant (14) comprises a silica gel mixture;
The third aspect is:
The desiccant (14) contains a rotating silica gel wheel.

  As can be appreciated by those skilled in the art, diesel fuel used in the heat treatment can be used in virtually any diesel truck that functions as a vehicle. Diesel fuel provides more BTU (calorie) per gallon than propane gas, so less fuel is required to supply heat to the desiccant with diesel fuel than propane gas, which reduces costs when used. In addition, because the diesel fuel burns without generating moisture, the process air will be much more dried, and a reinstatement of the desiccant will be achieved faster, thereby increasing performance in operation. Since the desiccant dehumidifying device of the present invention functions more effectively, its structure reduces the power requirement of the resurrection blower that draws air through the heat exchanger. This results in a more compact machine for easier transportation.

  An apparatus according to the invention for dehumidifying humidified air present in a building from the outside comprises a container, which is a heat exchanger, a desiccant and above the heat exchanger through the desiccant in a first direction. A first blower for sucking air from outside the container, a second blower for sucking the humidified air through the desiccant in a second direction, and means for igniting the heat exchanger with diesel fuel. Yes. In one embodiment, the container is placed on a large ground near a building where humidified air is present. In the second embodiment, the container is placed on a trailer or truck bed that is transported to a work place near the building to be dehumidified. In these examples, the desiccant comprises a silica gel mixture, for example in the form of a rotating silica gel wheel. In operation, once heated, the atmosphere is sucked through the desiccant in the opposite direction as the humidified air is sucked. Thus, the heated atmosphere acts to release the moisture collected by the desiccant and revives for continuous use of the desiccant.

  Accordingly, a method is provided for dehumidifying humidified air present in a building by providing a dehumidification chamber that includes a heat exchanger and a desiccant. Air is sucked in the first direction from the outside of the building where humidified air exists through a heat exchanger and a desiccant. The humidified air present in the building is sucked through the desiccant in the second direction, and the desiccant itself is dehumidified by the atmosphere above and around the heat exchanger. According to the present invention, the method includes igniting the heat exchanger with diesel fuel. In a preferred embodiment, the prepared dehumidification chamber contains a silica gel mixture and is in the form of a rotating silica gel wheel.

  These and other features of the invention will be more clearly understood from a consideration of the following description in conjunction with the accompanying drawings.

  With reference to FIGS. 1 and 2, the desiccant restoration apparatus of the present invention and the operation method thereof both use a container 10 having a heat exchanger 12 and a desiccant 14. Reference numeral 20 denotes a building, in which there is humidified air that the device of the present invention will dehumidify. The container 10 of the apparatus has a bottom surface 16 and is placed on a trailer or track bed in the vicinity of the building 20 once introduced into the work place. Alternatively, the container 10 is unloaded from the trailer or track bed onto the ground itself. Reference numeral 18 denotes a diesel fuel burner having an exhaust stack 22. As can be seen, the diesel fuel burner 18 heats the heat exchanger 12 from the inside.

  A first or resurrection blower 24 is routed from around via, for example, a 45.7 cm (18 inch) ductwork 70, above and around the diesel ignition heat exchanger 12 in a first direction as indicated by arrow 50. And the air passing through the desiccant 14 is sucked into the container 10. The moisture released by the heated air that has passed through the desiccant 14 is released to the outside of the container 10 as indicated by arrows 51-52. A second or process air blower 26 draws humidified air from within the building through similar ducting 72 and desiccant 14 in the second direction (indicated by arrow 60) and container as indicated by arrows 61-62. Prior to releasing dry air from 10, trap in it. Thus, the diesel ignition heat exchanger 12 dehumidifies the desiccant 14 that has collected moisture from the air in the wet building and reinstates it for continuous use of the desiccant 14. As explained so far, diesel fuel is readily available, burns cleanly and is efficient to operate. Furthermore, as a result, the desiccant dehumidifier can be rented for use at low cost, and the cost of returning the flooded building to its original state can be reduced.

  In the embodiment shown in FIG. 1, air from the outside of the container 10 is sucked through the desiccant 14 in a direction opposite to the direction sucked from the building through the desiccant 14 of the humidified air. Is shown in In such a method of use, the desiccant 14 comprising a silica gel mixture is particularly attractive for collecting moisture from the air in flooded buildings. FIG. 2 shows the desiccant 14 in the form of a rotating silica gel wheel 90 in a frame 92 within the container 10. Since the device used for diesel fuel ignition is highly efficient, the power requirement of the revival blower 24 that sucks in the atmosphere is considerably reduced and the size of the container 10 is reduced. The container can be permanently mounted on the trailer and can be transported to a moved work site for use.

  The method of using the present invention simply provides a dehumidification chamber with a heat exchanger and desiccant in either a silica gel mixture desiccant, or a rotating wheel or other method, and heat exchange through the desiccant in the first direction. It follows the step of sucking air from above the vessel and the outside of the building around it and the step of sucking humidified air from the building through the desiccant in the second direction. Through this process, the heat exchanger is ignited with diesel fuel. The described apparatus results in improved environmental drying being carried out quickly, easily and effectively, thereby eliminating severe health and / or carcinogenic problems associated with flooded buildings. Will be reduced.

FIG. 1 is a block diagram useful for understanding an apparatus and method for dehumidifying humidified air present in a building from its external location. It is a figure which shows the preferable structure of the used desiccant.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Container 12 Heat exchanger 14 Desiccant 18 Means for igniting heat exchanger 20 Building 24 First blower 26 Second blower

Claims (9)

  A device for dehumidifying the humidified air present in the building (20) from its external location, comprising a container (10), in a heat exchanger (12), a desiccant (14), in a first direction A first blower (24) for sucking air from outside the container above the heat exchanger through the desiccant; a second blower (26) for sucking the humidified air through the desiccant in the second direction; and diesel Apparatus for dehumidifying humidified air containing means (18) for igniting the heat exchanger with fuel.   The apparatus according to claim 1, wherein the container (10) is placed on a large ground in the vicinity of a building (20) where the humidified air is present.   The apparatus according to claim 1, characterized in that the container (10) is placed on a trailer or track bed in the vicinity of the building (20) in which the humidified air is present.   4. A device according to claim 1, wherein the desiccant (14) comprises a silica gel mixture.   4. A device according to claim 1, wherein the desiccant (14) comprises a rotating silica gel wheel.   The device according to any one of claims 1 to 5, wherein the first and second blowers (24, 26) suck the atmosphere and the humidified air in opposite directions through the desiccant (14). . A method of dehumidifying the humidified air present in the building (20) from its external location, comprising the step of preparing a dehumidifying chamber (10) comprising a heat exchanger (12) and a desiccant (14);
Sucking air from outside the building above the heat exchanger through the desiccant in a first direction;
Sucking humidified air from inside the building through the desiccant in a second direction;
Igniting the heat exchanger with diesel fuel;
A method characterized by dehumidifying the humidified air.   8. A method according to claim 7, wherein the desiccant (14) comprises a silica gel mixture.   9. A method according to claim 7 or 8, characterized in that the desiccant (14) comprises a rotating silica gel wheel.

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