JP2001311539A - Humidifying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To capable of making the reduction of blowing sound and safety compatible with each other. SOLUTION: In a humidifying device provided with a blower 4 situated in a state to be opposed to the internal part of an air inlet 2 and a humidifying element 5 to exert humidity on a flow of air forcibly fed by the blower 4, the blower 4 is mounted on an air inlet forming member 1a in which the air inlet 2 is formed and a given gap S is provided between the air inlet forming member 1a and the rotation part of the blower 4. For example, even when the air inlet 2 is formed in a slit shape being wide in a rift, insertion of a finger deep enough to make contact with the rotation part of the blower 4 is prevented from occurring.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a humidifying device used in a prefabricated refrigerator or the like.

[0002]

2. Description of the Related Art As a well-known humidifying device, a humidifying element made of a porous plate member is brought into contact with air in a state where water is sucked into the humidifying element, thereby giving a humidity to the air. There is a humidifier. In this case, humidification efficiency is limited because water must always flow through the humidification element, and water supply work or the like is required.

On the other hand, a humidifying device has been developed which comprises a water container in which water is stored and a number of hollow tubes having water vapor permeability and supported through the water container. In the case of this type of humidifier, since the water contained in the water container is vaporized and vaporized as water vapor into the hollow tube to give humidity to the air flowing through the hollow tube, the humidification efficiency is 100%. It becomes something close to. Further, when used in a prefabricated refrigerator, it is humidified at a low temperature, so the amount of humidification per unit time is limited, and water consumption is also limited, which is suitable for use in a prefabricated refrigerator.

[0004]

However, in the case of the above-mentioned humidifying device, it is necessary to dispose a blower for feeding air toward the humidifying element in an air inlet formed in a casing of the humidifying device. In order to prevent finger biting or the like by a blower, a protective net is provided at an air inlet. In terms of security, the finer the mesh of this protection net, the better, but if the mesh is too fine,
The suction resistance increases, and the sound of air passage becomes a problem.
When the mesh size is large, the passing sound can be reduced, but it is difficult to secure the security.

[0005] The present invention has been made in view of the above points, and an object of the present invention is to make it possible to achieve both the reduction of the blowing noise and the securing of safety.

[0006]

According to the first aspect of the present invention, as a means for solving the above-mentioned problems, a blower 4 disposed inside the air suction port 2 so as to be opposed to the air suction port 2 and a pressure supply by the blower 4 are provided. A humidifying element provided with a humidifying element 5 for imparting humidity to the air flow to be blown, wherein the blower 4 is attached to the suction port forming member 1a in which the air suction port 2 is formed, and the suction port forming member 1a A predetermined gap S is interposed between the fan and the rotating part of the blower 4.

With the above configuration, the rotating portion of the blower 4 is located at a position from the air suction port 2 with a predetermined gap S therebetween.
Even if is made into a slit shape with a large eye, the finger is not inserted until the finger touches the rotating part of the blower 4.
That is, even if the air suction opening 2 is widened to reduce the suction resistance by reducing the suction resistance, sufficient safety can be ensured.

According to the second aspect of the present invention, as a means for solving the above-mentioned problem, a blower 4 disposed inside the air suction port 2 so as to be opposed to the air suction port 2 is provided with a humidity And a humidifying element 5 for providing air blower, a blower supporting portion 2 that covers the air suction opening 2 and supports the blower 4 on the inner surface side of the air suction opening 2.
A support 23 having a support 3a is attached, and a predetermined gap S is interposed between the blower support 23a and the air inlet 2.

With the above configuration, the blower 4 is supported by the blower supporting portion 23a located at a position from the air suction port 2 with a predetermined gap S therebetween.
Even if the air inlet 2 has a large slit shape in the eyes, the air inlet 2 is not inserted until the finger touches the blower 4. In other words, even if the air suction port 2 is widened to reduce suction resistance by reducing the airflow passage noise,
Safety can be sufficiently ensured.

[0010] As in the invention of claim 3, claim 2
In the humidifier described above, when the area of the blower support portion 23a of the support base 23 is set to be larger than the suction area of the blower 4, a large space surrounded by the support base 23 is secured on the suction side of the blower 4. As a result, the wind speed passing through the air suction port 2 can be further reduced.

As in the invention of claim 4, in the humidifier according to any one of claims 1, 2 and 3, the suction side of the humidification element 5 faces the discharge port 4a of the blower 4, When the rectifying plate 25 for diffusing the air from the blower 4 is provided, even if the distance between the discharge port 4 a of the blower 4 and the humidifying element 5 is shortened by the mounting structure of the blower 4, the function of the rectifying plate 25 causes the blower. 4 is diffused, and the distribution of air passing through the humidifying element 5 can be kept good.

According to a fifth aspect of the present invention, in the humidifying apparatus according to any one of the first to third aspects, the humidifying element 5 includes a water container 6 containing water and a water container. 6 is constituted by a large number of hollow tubes 7, 7,... Having a water vapor permeability and supported in the flow direction of air from the air suction port 2 toward the air outlet 3 with respect to the hollow tubes 7, 7,. The air flowing inside 7 is humidified by the water vapor that permeates and evaporates into the hollow tubes 7, 7,..., And a humidification efficiency of nearly 100% is obtained.

[0013]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

[0014] The humidifying device C, as shown in FIG. 1, delivery direction of the humidified air W ₂ is disposed alongside the refrigeration apparatus B to the inside prefabricated refrigerator A so as to be parallel to the blowing direction of the cool air W ₁ As shown in FIGS. 2 to 4, two opposing surfaces (ie, a back plate 1 a and a front plate 1
b) a substantially rectangular parallelepiped casing 1 having an air inlet 2 and an air outlet 3, a blower 4 disposed inside the air inlet 2 so as to face the air, and air blown by the blower 4 Two humidifying elements for imparting humidity to the flow,
5 is provided.

Each of the humidifying elements 5 is made of a rectangular parallelepiped water container 6 for storing water and a water vapor permeable material (for example, ethylene-tetrafluoroethylene copolymer) penetratingly supported by the water container 6. ) Made of a porous material whose main component is a porous material.
The two are arranged side by side in the casing 1 while being supported above. At this time, the humidifying elements 5 are arranged such that the hollow tubes 7, 7,... Are parallel to the flow direction of air from the air suction port 2 to the air outlet 3.

The air inlet 2 is, as shown in FIG.
The casing rear plate 1a is constituted by a large number of slit-like holes formed at the center. That is, in the present embodiment, the casing rear plate 1a is made of steel for the suction port forming member. The air outlet 3 is formed on substantially the entire surface of the casing front plate 1b, and has an opening having a height slightly higher than the height of the humidifying element 5 (in other words, an opening having a size capable of taking the humidifying element 5 in and out). ). In this way, when the humidifying elements 5 and 5 are replaced, the humidifying elements 5 and 5 can be replaced from the air outlet 3 formed in the casing front plate 1b. Become. Also, the hollow tubes 7, 7,... In the humidifying element 5 can be visually confirmed from the air outlet 3, so that it is easy to determine the replacement time and the like or to cause a failure. Also, the humidified air W _2, since that is the be blown out from the air outlet 3 consisting of a large opening, it is able to slow the velocity of the humidified air W _2, humidified storage object stored in prefabricated refrigerator A it is possible to prevent the occurrence of degradation of the storage product by striking air W ₂ directly.

The bottom plate 1d of the casing 1 is fixed with screws to the lower end portions of the casing back plate 1a and the casing side plates 1c, 1c, and functions as a drain pan having a rust-proof coating on the surface. As shown in FIG. 3, a piping chamber 10 partitioned by a partition 9 is formed in the casing 1.
An electromagnetic valve 11 for performing water supply control in a water supply line, and a storage tank 12 having a float switch (not shown) for temporarily storing water supplied to the humidifying element 5 and controlling opening and closing of the electromagnetic valve 11 are provided. . Sign 1
3 is a drain outlet.

Further, a hose connection portion 18 (see FIG. 3) to which a water supply hose 17 for supplying water to the water container 6 is connected is provided at the bottom of the water container 6 near the air outlet 3. Is provided. In this way, even when the humidifying element 5 is replaced, the water supply hose 17 can be easily removed from the hose connection portion 18 from the air outlet 3, and the replacement operation of the humidifying element 5 becomes easy. When the water supply hose 17 is removed, the water container 6
The water remaining inside is discharged, but the discharged water is received by the drain pan constituted by the casing bottom plate 1d, and does not leak out of the humidifier.

The space between the two sides of the humidifying elements 5 and 5 and the casing side plate 1c and between the partition wall 9 prevents the air from the blower 4 from bypassing the humidifying elements 5 and 5. Bypass prevention plate 14, 1
4 are provided. The humidifying elements 5, 5
An upper bypass prevention plate 15 for preventing air from the blower 4 from bypassing the humidifying elements 5 and 5 is also provided between the upper surface of the casing 1 and the casing top plate 1d.

Both end portions of the element mounting base 8 are fixed to the lower ends of the left and right bypass prevention plates 14 and 14 with screws. A rear portion of the element mounting base 8 is attached to the casing bottom plate 1d. A lower bypass prevention plate 16 is formed integrally with the humidifying elements 5 and 5, which abuts against the humidifying elements 5 and 5 to contact the humidifying elements 5 and 5. This eliminates the need to weld a member such as a bypass prevention plate to the casing bottom plate 1d functioning as a drain pan, so that rust-preventive painting can be performed completely, and the function as a drain pan is maintained for a long time. be able to. At the lower end of the bypass preventing plates 14 and 14 on the partition 9 side and located on the leeward side of the humidifying elements 5 and 5, a casing bottom plate 1d functioning as a drain pan is provided.
A notch hole 19 is formed to guide the drain that accumulates in the pipe chamber 10 toward the pipe chamber 10 where the drain outlet 13 is provided. In this way, as will be described later, the residual water discharged when the water supply hose 17 is removed when the humidifying element 5 is replaced is received by the casing bottom plate 1d functioning as a drain pan, and then the notch hole 19 is closed. It is easily moved to the piping chamber 10 side through it, and is discharged from the drain discharge port 13.

On the other hand, as shown in FIGS. 3 and 5, the blower 4 is an axial flow blower in which an impeller 21 is directly connected to a fan motor 20, and a fan guide 22 that covers the outer periphery of the impeller 21. And the fan motor 20 are integrally connected. The blower 4 includes the fan guide 22 on a U-shaped support base 23 fixed to the inner surface of the air suction port 2 formed on the casing back plate 1a constituting the suction port forming member. It is attached by screwing. That is, a gap S having a size corresponding to the height of the support base 23 is formed between the air suction port 2 and the impeller 21 of the blower 4. Note that the fan guide 22 and the support base 23 of the blower 4 may be formed as an integrally molded product, and the integrally molded product may be directly attached to the casing back plate 1a which is the suction port forming member. Reference numeral 24 denotes an opening formed in the support 23. In this way, even when the slit width of the air suction port 2 is increased to suppress the suction resistance, the finger pressed against the air suction port 2 can be used by the impeller 21.
Therefore, it is possible to achieve both reduction of the blowing noise and securing of safety.

By the way, as described above, when the blower 4 is mounted on the support 23 fixed to the inner surface of the casing back plate 1a, the space between the discharge port 4a of the blower 4 and the back of the humidifying elements 5, 5 is increased. You will get closer. Then, the air from the blower 4 is humidified by the humidifying element 5,
There is a risk of passing through a limited range of five. Therefore, in the present embodiment, the discharge port 4 of the blower 4
a, the upper and lower bypass prevention plate 1
As shown in FIG. 6, a rectifying plate 25 for diffusing the air from the blower 4 on the back side of the humidifying elements 5 and 5 is attached between the humidifying elements 5 and 5. The rectifying plate 25 covers fixing portions 25a and 25b which are fixed to the upper and lower bypass preventing plates 15 and 16 with screws, and covers the back side of the connecting portion of the humidifying elements 5 and 5 between the fixing portions 25a and 25b. And a rectifying portion 25c having two rectangular openings 26, 26 arranged in a row. In this way, the air from the blower 4 is diffused in the rectifying portion 25c of the rectifying plate 25, and passes through the hollow tubes 7, 7,.
Maximum humidification efficiency can be secured.

Further, the humidifying elements 5 and 5 have their front upper end portions pressed by an element pressing plate 27 fixed by screws 29 to a mounting bracket 28 fixed to a casing top plate 1e. It is to be fixed on a mounting table 8, and a predetermined distance D is maintained between the air outlet 3 and the humidifying elements 5, 5. The interval D
Are hollow tubes 7, which constitute the humidifying element 5,
Even if the water in the water container 6 jumps out when the 7... Are damaged, it is desirable that the dimensions are such that the water does not scatter outside the humidifier. The element holding plate 27 includes:
As shown in FIG. 2, FIG. 3 and FIG. 27b and the holding plate main body 27
a upper pressing portions 27c, 27c which are located at the lower ends of the front pressing portions 27b, 27b and are in contact with the front end of the upper surface of the humidifying element 5, and the pressing portions 27c, 27c at the upper end of the pressing plate main body 27a. Mounting portions 27d, 2 cut obliquely to the portion corresponding to the central portion between
7d, a screw hole 30a into which the screw 29 is inserted, and a head portion 29a of the screw 29 that is continuous with the screw hole 30a in the horizontal direction.
And a guide hole 30b having a size from which the hole can escape. Therefore, when the element holding plate 27 is slid in the direction of the arrow P (see FIGS. 2 and 7) after the screw 29 is loosened, the head 29a of the screw 29 can be detached from the guide hole 30b, and the screw 29 is completely removed. The element holding plate 27 can be removed without screwing off. By doing so, the element pressing plate 27 can be removed while the screws 29 remain on the casing top plate 1e (specifically, the mounting bracket 28) side, and the screws 29 drop when the element pressing plate 27 is removed. It will not be lost.

As shown in FIG. 2, the humidifying device C having the above-described structure includes hanging brackets 31, 31 attached to both side surfaces 1c, 1c of the casing 1, and a ceiling 32 of the prefabricated refrigerator A.
To be supported by supporting bolts 33, 33. Further, in the case of the humidifier C having the above configuration, the water contained in the water container 6 permeates into the hollow tubes 7, 7,.
7 ・ ・ ・ Humidification efficiency is close to 100% because the air flowing inside is humidified, and when used in the prefabricated refrigerator A, it will be humidified at a low temperature. Since the amount of humidification is limited and the consumption of water is limited, it is only necessary to provide a water supply tank 34 for supplying water to the humidification elements 5 and 5 on the upper surface of the ceiling 32, which requires water supply work. do not do. Code 35, 3
6 is a double nut, 37 is a single nut, 38 is an L-shaped reinforcing member, and 39 is a silicone sealant.

The humidifier configured as described above has the following functions and effects.

The air W pressure-fed by the blower 4 is humidified by the steam permeated and vaporized in the hollow tubes 7, 7,... In the course of passing through the hollow tubes 7, 7,. As a result, the humidified air W _{2 is} blown out from the air outlet 3 formed in the front plate 1 b of the casing 1 to humidify the room (for example, inside the prefabricated refrigerator A).

In the above description, the humidifying device used in the prefabricated refrigerator is described as an embodiment, but the present invention can of course be applied to a humidifying device used for other purposes.

[0028]

According to the first aspect of the present invention, the air inlet 2
In a humidifying device comprising a blower 4 arranged inwardly facing the air and a humidifying element 5 for imparting humidity to the air flow fed by the blower 4, the blower 4 is connected to the air inlet 2 The air suction port 2 is attached to a suction port forming member formed with a gasket, and a predetermined gap S is interposed between the suction port forming member and the rotating portion of the blower 4, so that the air suction port 2 is, for example, large. Even if it has a slit shape, it will not be inserted until the finger touches the rotating part of the blower 4, so the eyes of the air suction port 2 are widened to reduce the suction resistance and reduce the blow-through sound. However, there is an effect that safety can be sufficiently secured.

According to the second aspect of the present invention, the blower 4 is provided to face the inside of the air suction port 2, and the humidifying element 5 for imparting humidity to the air flow fed by the blower 4.
In the humidifier provided with the above, a support base 23 having a blower support portion 23a that covers the air suction port 2 and supports the blower 4 is attached to the inner surface side of the air suction port 2, and the blower support portion 23a and the air suction port 2
For example, even if the air suction port 2 is formed into a large slit shape with a predetermined gap S interposed therebetween,
Since the finger is prevented from being inserted until it touches the blower 4, even if the eyes of the air suction port 2 are widened to reduce the suction resistance and reduce the air passing sound,
There is an effect that safety can be sufficiently ensured.

As in the invention of claim 3, claim 2
In the humidifier described above, when the area of the blower support portion 23a of the support base 23 is set to be larger than the suction area of the blower 4, a large space surrounded by the support base 23 is secured on the suction side of the blower 4. As a result, the wind speed passing through the air suction port 2 can be further reduced.

As in the invention of claim 4, in the humidifying device according to any one of claims 1, 2 and 3, the suction side of the humidifying element 5 faces the discharge port 4a of the blower 4, When the rectifying plate 25 for diffusing the air from the blower 4 is provided, even if the distance between the discharge port 4 a of the blower 4 and the humidifying element 5 is shortened by the mounting structure of the blower 4, the function of the rectifying plate 25 causes the blower. 4 is diffused, and the distribution of air passing through the humidifying element 5 can be kept good.

As in the fifth aspect of the present invention, in the humidifying apparatus according to any one of the first to third aspects, the humidifying element 5 comprises a water container 6 containing water and a water container. 6 is constituted by a large number of hollow tubes 7, 7,... Having a water vapor permeability and supported in the flow direction of air from the air suction port 2 toward the air outlet 3 with respect to the hollow tubes 7, 7,. The air flowing inside 7 is humidified by the water vapor that permeates and evaporates into the hollow tubes 7, 7,..., And a humidification efficiency of nearly 100% is obtained.

[Brief description of the drawings]

FIG. 1 is a plan view showing a state where a humidifier according to an embodiment of the present invention is used in a prefabricated refrigerator.

FIG. 2 is a front view showing an attached state of the humidifying device according to the embodiment of the present invention.

FIG. 3 is a vertical sectional side view of the humidifier according to the embodiment of the present invention.

FIG. 4 is a sectional view taken along line IV-IV of FIG. 3;

FIG. 5 is a front view showing a blower mounting portion in the humidifying device according to the embodiment of the present invention.

FIG. 6 is a rear view showing a main part on the rear side of the humidifying element in the humidifying device according to the embodiment of the present invention.

FIG. 7 is an enlarged front view of an element pressing plate in the humidifying device according to the embodiment of the present invention.

[Explanation of symbols]

1 is a casing, 1a is a suction port forming member (back plate), 1
b is a front plate, 1c is a side plate, 1d is a bottom plate, 1e is a top plate, 2
Is an air inlet, 3 is an air outlet, 4 is a blower, 5 is a humidifying element, 6 is a water container, 7 is a hollow tube, 23 is a support base, 23a is a blower support, 25 is a rectifying plate, S is a gap, W is air, W ₂ is humidified air.

Claims (5)

[Claims] An air blower (4) disposed inwardly of an air suction port (2), and a humidifying element (5) for imparting humidity to an air flow compressed by the blower (4). A humidifying device comprising: a suction port forming member (1a) in which the blower (4) is formed with the air suction port (2);
And a predetermined gap (S) is interposed between the suction port forming member (1a) and the rotating part of the blower (4). 2. A blower (4) disposed inward of an air inlet (2) and a humidifying element (5) for imparting humidity to an air flow fed by the blower (4). A humidifier provided with an air inlet (2) on an inner surface side of the air inlet (2) and covering the air inlet (2) and the blower (4).
A support base (23) having a blower support portion (23a) on which the blower support portion (23a) is supported is attached.
A humidifier characterized in that a predetermined gap (S) is interposed between a) and the air suction port (2). 3. The humidifier according to claim 2, wherein the area of the blower support portion (23a) in the support stand (23) is set larger than the suction area of the blower (4). 4. A rectifying plate (25) is provided on the suction side of the humidifying element (5) to face the discharge port (4a) of the blower (4) and to diffuse air from the blower (4). The humidifier according to any one of claims 1, 2 and 3, wherein: 5. The humidifying element (5) is moved from the air inlet (2) to the water outlet (3) with respect to the water container (6) containing water and the water container (6). 5. A structure as claimed in claim 1, wherein the hollow tube is provided with a plurality of hollow tubes having a water vapor permeability and supported in the direction of air flow. The humidifying device as described.