JP3047085U - Perforated block unit for humidifier - Google Patents

Abstract

(57) [Summary] In a porous block unit used for humidifying air conditioning, when units are stacked up and down to constitute a humidifier, a displacement between the upper and lower units is prevented from occurring, and a rearward humidifier is provided. Prevents scattering of water particles. SOLUTION: A strip-shaped corrugated sheet 1 made of an inorganic porous material is superposed so as to allow air to pass therethrough, and an upper frame 2, 2 ', a lower frame 3, 3', side frames 4a + 4a 'and 4b +.
In the perforated block unit fixed with a frame frame made of 4b ', side frame locking portions 5 having upper ends of side frames 4a + 4a' and 4b + 4b 'projecting from upper surfaces of upper frames 2 and 2'.
a and 5b, and if necessary, side frames 4a + 4
A porous block unit for a humidifier, characterized in that side frame cutouts 6a, 6b are provided with lower ends of a 'and 4b + 4b' positioned above lower surfaces of lower frames 3, 3 '.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a humidifier having a high humidifying efficiency for applying moisture to air using sensible heat of air.

[0002]

[Prior art]

 Conventional humidifiers that provide moisture to air are roughly divided into the following types. A method of evaporating water by heating it with a heat source. A method of spraying pressurized water into the passing air. A method of forming micro water droplets with high pressure air or ultrasonic waves and spraying or spraying them. A method in which air passes through a gas-permeable membrane that has been moistened with water.

[0003] Each of these methods has its own advantages and disadvantages. The problems are as follows. In the method of (1), a heat source is required, and the apparatus becomes complicated. In the above method, water droplets are generally created using a rotating disk or the like, but the droplets become large, and the humidification efficiency (water evaporation / watering amount) and saturation efficiency (actual humidification amount / theoretical humidification amount) Are both smaller. In addition, humidification space becomes large because it sprays in gas. The method described above requires a large amount of power, and when using ultrasonic waves, the ultrasonic vibrator tends to fail. Further, the evaporation residue in the water droplets becomes dusty. In the above method, in the method in which water is applied to a porous nonwoven fabric and air is passed through the film, the pressure loss increases when the film is made thicker, and the saturation efficiency becomes worse when the film is made thinner. In addition, when the membrane is immersed in the water tank and moistened, power is required, and there is a risk that bacteria attached to the membrane may propagate in the tank.

[0004] And, what can be said in common to the methods (1) to (4) is that, when the wind speed increases, the water droplets are scattered along with the airflow, and the precipitation substance existing in the water precipitates somewhere to become a scale. However, there is a problem that this diffuses into the air. The methods (1) to (4) have a fundamental drawback that one or both of the humidification efficiency and the saturation efficiency are low.

[0005] In order to solve such a problem of the conventional humidifier, the present inventors have proposed an inorganic porous material as disclosed in Japanese Patent Publication No. 3-66575 and Japanese Utility Model Publication No. 6-8420. A humidifier that humidifies by passing air while dropping water into a porous block body formed by stacking strip-shaped corrugated sheets made of a porous material so as to allow air to flow therethrough is provided. This humidifier is particularly high in humidification efficiency and saturation efficiency, and uses the sensible heat while passing the air to be treated to add moisture.For example, the humidifier is placed in a ventilation duct. If installed, efficient humidification is possible without the need for special power. Further, by alternately changing the wave direction of the strip-shaped corrugated sheet under specific conditions, water is temporarily supplied to the entire block body to prevent the growth of mold and various bacteria, and the air exit side of the block body is prevented. Thus, it is possible to prevent water droplets from scattering along with the airflow.

[0006] Such a porous block body is fixed to a frame made of stainless steel or the like to form a "porous block unit". Then, a plurality of porous block units (for example, five in the width direction and four in the upper and lower directions, a total of 20 units) are installed adjacent to each other so as to cover the cross-sectional area of the air passage, and a humidifier is configured. Each perforated block unit has dimensions that are convenient for handling in narrow places, for example, with an air intake surface of 200 to 300 mm square and a thickness of about 50 mm. For installation in the air passage, for example, a partition that secures the thickness of the perforated block unit is provided by passing some steel rods in the width direction or the up and down direction of the air passage, and the partition is provided there. Insert the units and arrange them adjacent to each other in the width and vertical directions. In this case, the partition of the steel bar restricts the movement of each unit in the ventilation direction, and there is no need to connect adjacent units. By unitizing the porous block in this way, it is possible to easily install and maintain the humidifier even in a narrow place.

[0007]

[Problems to be solved by the invention]

 However, even with a humidifier using such a perforated block unit, problems have become apparent in the course of experiencing various construction examples. In other words, there were cases where water particles scattered behind the humidifier. Such scattering of water particles could be prevented by optimizing the wave direction of the inorganic porous corrugated sheet as described above. When the present inventors investigated the cause in detail, the following things became clear. In other words, the scattering of the water particles in question does not occur directly from the air outlet of the porous block, but water that has leaked out of the unit from the gap between the frames of the vertically stacked units forms water droplets. This was caused by being blown backwards.

In order to prevent such generation of water droplets, for example, a method of joining the frame frames of adjacent units without gaps by welding or the like, or a method of sandwiching a gasket between adjacent frame frames with bolts or the like There is a method of fixing by using. However, such a method is not suitable for work in a narrow place such as inside a duct, and it takes a lot of time, especially when replacing units in maintenance management after construction, and the unit I can't take advantage of the benefits that I have. Thus, the present invention provides a humidifier provided with a porous block unit adjacent to the inside of the air passage, while maintaining the excellent workability and maintainability obtained by unitization, while preventing water particles from flowing downwind. The purpose is to provide means that can more reliably prevent scattering.

[0009]

[Means for Solving the Problems]

 In order to achieve the above object, the invention according to claim 1 is characterized in that strip-shaped corrugated sheets made of an inorganic porous material are overlapped so that air can be passed through them, the width of the boards is made thick, and the length of the boards is made high. In addition to forming a porous block whose width is the length determined by the number of superposed plates, this porous block is fixed by a frame frame in which the upper frame, side frames, and lower frame are joined, and water supplied from the upper surface is used. A porous block unit of a humidifier that allows air to flow in the thickness direction of the block body while allowing water to flow into the porous block body, wherein the upper end of the side frame protrudes from the upper surface of the upper frame. A perforated block unit of a humidifier in which a frame locking portion is provided on an upper portion of a frame frame, and the side frame locking portion locks a frame frame of an upper unit loaded on the unit. The feature of this unit is that a locking portion using a side frame member is provided at the upper part of the frame frame, and this locking portion restrains the next higher unit in the thickness direction and the width direction. ing.

A second aspect of the present invention is a porous block unit used in a humidifier similar to the first aspect, wherein the side frame cutout is formed by positioning the lower end of the side frame above the lower surface of the lower frame. A porous block unit of a humidifier provided at a lower portion of a frame frame, wherein a side frame locking portion of a lower unit on which the unit is loaded is engaged with the cutout portion of the side frame so that the lower frame is locked. . This unit is characterized in that a side frame cutout is provided at the lower part of the frame frame. The side frame locking portion of the next lower unit is engaged with the side frame cutout, and the thickness direction and the width are reduced. It is constrained in the direction.

A third aspect of the present invention is a porous block unit used for a humidifier similar to the first aspect, wherein the side frame engaging portion according to the first aspect is provided on an upper portion of the frame, and a lower portion of the frame is provided. A humidifier porous block unit provided with a side frame cutout according to claim 2.

[0012] The inventions of claims 4 to 6 specify that the structure of the frame is exactly upside down as in the case of claims 1 to 3, respectively. That is, the invention of claim 4 relates to a porous block unit used for a humidifier similar to claim 1, wherein a side frame locking portion in which the lower end of the side frame is projected from the lower surface of the lower frame is provided at the lower portion of the frame frame. A perforated block unit of a humidifier, wherein a frame frame of a lower unit on which the unit is loaded is locked by the side frame locking portion. In other words, a feature is provided in which a locking portion utilizing a side frame member is provided downward at the lower portion of the frame frame, and the locking portion performs the same locking function as that of the first aspect.

A fifth aspect of the present invention is a porous block unit used for a humidifier similar to the first aspect, wherein the upper end of the side frame is located below the upper surface of the upper frame, so that the side frame cutout is provided. Is provided on the upper part of the frame frame, and the side frame locking portion of the upper unit loaded on the unit is engaged with the cutout of the side frame so that the upper frame is locked so that the porous block body unit of the humidifier is locked. It is. That is, this is characterized in that a side frame cutout is provided at the upper part of the frame frame, and the side frame cutout performs the same function as that of the second aspect.

According to a sixth aspect of the present invention, there is provided a porous block unit used in a humidifier similar to the first aspect, wherein the side frame engaging portion according to the fourth aspect is provided at a lower portion of the frame, and an upper portion of the frame is provided. A humidifier porous block unit provided with a side frame cutout according to claim 5.

[0015]

[Embodiment of the invention]

 FIG. 1 shows an example of a porous block unit according to the present invention. The porous block body 1 is formed by laminating a plurality of strip-shaped corrugated sheets of an inorganic porous material so that air flows in the direction of the arrow in the figure. The upper part is constrained by upper frames 2 and 2 ', and there is a sufficient gap between upper frames 2 and 2' so that water can be taken in from the upper surface. The lower part of the porous block body 1 is restrained by lower frames 3 and 3 ', and a sufficient gap is provided between the lower frames 3 and 3' so that water that has fallen inside flows out from the lower surface. The side surfaces of the porous block body are fixed by attaching side frames 4a and 4b. In the illustrated example, side frames 4a and 4b having a U-shaped cross section are attached to an upper frame and a lower frame.

FIG. 2 is an example of the porous block unit having the “side frame locking portion” and the “side frame cutout” of the present invention when viewed from the windward direction (front). When joining the side frames 4a, 4b and the upper frames 2, 2 ', the upper ends of the side frames 4a, 4b are projected upward from the upper surfaces of the upper frames 2, 2', so that the side frames are locked on the upper portions of the frame frames. Parts 5a and 5b are formed. When joining the side frames 4a, 4b and the lower frames 3, 3 ', the lower ends of the side frames are positioned above the lower surface of the lower frame, so that the side frame cutouts 6a, 6b are formed at the lower portion of the frame. It is formed.

When the unit having the side frame locking portion at the upper part of the frame frame is referred to as the lower unit, and the unit having the side frame cutout portion at the lower portion of the frame frame is referred to as the upper unit, when stacking them, The stop portion engages with the cutout of the side frame of the upper unit, and the side frame lock portion of the lower unit can lock the lower frame of the upper unit by, for example, its U-shaped cross section. it can.

As described above, the water particles scattered behind the humidifier and causing problems are not blown out from the air outlet of the porous block with the air to be processed, but are frame frames between the upper and lower units. The water that had leaked out of the unit through the gap was blown backwards. Further investigation revealed that such water seepage occurred where the stacking of the upper and lower units was shifted. FIG. 3 schematically shows a typical "shift" of the upper and lower units seen at a location where water seeps. When conventional units that do not have a locking function are stacked together, it has been difficult to reliably prevent such vertical displacement. On the other hand, in the present invention, since the side frame itself has a function of locking the upper (or lower) unit, there is no "shift" between the upper and lower units.

The term “lock” in the present invention means that the upper (or lower) unit is restrained in the thickness direction and the width direction, but not in the vertical direction. Therefore, when installing a humidifier on site, there may be a slight gap between the upper frame of the lower unit and the lower frame of the upper unit. However, it was found that even if such gaps were formed, they were very small intervals, so that they did not actually cause a problem. In other words, since the air passage resistance is very large compared to the inside of the porous block body, almost no air flow occurs in the small gap between the upper and lower units. In the present invention, it is not necessary to consider the gap between the upper and lower units as much as a problem with respect to the scattering of water particles generated between the frames of the upper and lower units, and it is sufficient that the gap is the same as that obtained by the conventional stacking method, and It was possible to achieve this by knowing that it was rather important to eliminate the "shift" in how the upper and lower units were stacked. That is, there is no need for a vertical locking function between the upper and lower units, and it is sufficient to provide a locking function for restricting only in the thickness direction and the width direction.

Since the porous block unit of the present invention does not have a function of locking in the vertical direction, the humidifier can be easily stacked in the same manner as before in the construction of the humidifier. In addition, unit replacement work in maintenance management can be performed extremely easily as before. Also, since the side frame is used as it is as the locking member, the production of the porous block unit can be performed simply and at low cost in almost the same manner as before. In addition, since the position of the side frame locking part also serves as a mark, there is no mistake in vertical direction during construction.

As the side frame used for the perforated block unit, in the example of FIG. 1 described above, a single member having a U-shaped cross section is shown. The shape of the side frame is not particularly limited as long as the unit (or one step below) can be locked in the thickness direction and the width direction. For example, if a side frame (see FIG. 5 described later) formed by joining a side frame member on the windward side (front side) and a side frame member on the leeward side (rear side) with a rivet or the like is used, the unit can be efficiently manufactured. I can do it. That is, first, the frame member 2-4a-3-4b on the leeward side and the frame member 2'-4a'-3'-4b 'on the leeward side are separately assembled by welding or the like, and then the inorganic porous material is formed. A porous block body, which is an aggregate of strip-shaped corrugated sheets of material, is sandwiched between the above-mentioned leeward side frame member and the leeward side frame member, and finally the corresponding leeward and leeward side frame members are riveted to each other. If they are joined together, the workability of unit production is improved.

As the inorganic porous material constituting the porous block body, a paper mainly composed of inorganic fibers made of alumina silica fiber, silica fiber, alumina fiber, various glass fibers, natural inorganic fibers, and the like by an ordinary method is required. If so, it is only necessary to attach several pieces and then to corrugate. As the adhesive for bonding, an inorganic adhesive based on colloidal silica or sodium silicate can be used. In order to provide the necessary strength, the curing treatment is preferably performed twice or more in some cases. The addition of porous powder such as silica fine powder or diatomaceous earth to the curing agent is effective in adjusting the pore structure of the corrugated wall, ie, the water content, the amount of water flowing down, and the amount of water evaporation. It is. A corrugated sheet processed and treated from paper using alumina silica fiber, silica fiber, alumina fiber, and natural inorganic fiber as the paper material is treated at 800 to 1300 ° C to form a sintered inorganic porous corrugated sheet. can do.

[0023]

【Example】

 An operation test was conducted by incorporating a humidifier constituted by a porous block unit into the air conditioner shown in FIG. In FIG. 4, reference numeral 11 denotes a filter, 12 denotes a heat exchanger, 13 denotes the humidifier, and 14 denotes a fan, which are integrally accommodated in a casing. Reference numeral 15 denotes an air supply port, and reference numeral 16 denotes a return air port. The humidifier 13 is set on the downstream side of the heat exchanger 12, and the drain pan 17 of the heat exchanger and the drainage receiver of the humidifier 13 are used in common. Is discharged. 19 is a water supply pipe, 20 is a water supply strainer, 21 is a pressure reducing valve, 22 is a solenoid valve, and 23 is a control panel.

[Conventional Example] First, the humidifier 13 was constituted by a conventional porous block unit, that is, a unit having no locking function between the upper and lower sides. As disclosed in Japanese Utility Model Publication No. 6-8420, the porous block body of each unit is formed by alternately stacking porous corrugated sheets having different wave ridge directions, and has a height of 200 mm, a width of 200 mm, and a thickness of 200 mm. A 50 mm-thick corrugated plate assembly was used. The humidifier 13 was constituted by arranging these porous block units in three rows and adjacently arranged in six rows in the width direction. Then, the fan 14 was operated while supplying water to the inside of the humidifier 13 from the water supply header provided at the upper part of the humidifier 13 to perform the humidification air conditioning operation for 24 hours. At that time, the test was performed under severe conditions such that the wind speed before and after the humidifier was 10 m / sec at the maximum. As a result, scattering of water particles was observed behind the humidifier. In the humidifier 13, there were several places where the upper and lower units were slightly misaligned in the way they were stacked. Of these, water particles were scattered from two places where the misalignment was relatively large. all right. It is considered that these “shifts” are caused by wind pressure and vibration during operation.

[Example of Invention] Next, all of these units were removed and replaced with the porous block unit according to the present invention. The structure and dimensions of the perforated block (corrugated plate assembly) of each unit were the same as in the above conventional example. The number and arrangement of the units used are the same. However, for the lower and middle units of the three-tiered stack, use units with side frame locking parts provided at the top of the frame frame. Did not occur.

FIG. 5 shows the appearance of the porous block unit used in the middle stage. The side frame is integrally formed by joining the leeward member 4a '(4b') and the leeward member 4a '(4b') with the rivet 7. At the upper part of the frame, side frame locking portions 5a and 5b having a protruding length of 8 mm are provided. At the lower portion of the frame, side frame cutouts 6a and 6b each having a cutout length of 9 mm are provided. Reinforcement lines 8 were joined to the left and right side frames on the windward and leeward sides to increase the strength. The upper frames 2, 2 ', the lower frames 3, 3', the side frames 4a + 4a ', 4b + 4b', and the reinforcing wires 8 are all made of stainless steel. The upper unit has the same structure as that of the middle unit except that the side frame locking unit is not provided on the upper part of the frame. The lower unit has the same structure as that of the middle unit except that a side frame notch is not provided below the frame.

The humidifier 13 was constituted by such a porous block unit, and a humidifying air-conditioning operation was performed for 24 hours under the same conditions as in the conventional example. As a result, no water particles were scattered behind the humidifier, despite the test under severe conditions such as a maximum wind speed of 10 m / sec. After that, an additional 240 hours of humidification air conditioning operation was performed, but no water particles were scattered. Thus, it was confirmed that the humidifier using the porous block unit of the present invention can stably prevent water particles from scattering backward for a long time. In addition, units could be easily replaced.

[0028]

[Effect of the invention]

 If a humidifier is configured by using the porous block unit according to the present invention, it is possible to reliably prevent a “shift” in how the upper and lower units are stacked. This has made it possible to stably prevent water particles from flying backward, which has been a problem in the past, for a long period of time, and to provide clean humidified air with high reliability. Moreover, since it is easy to provide compatibility with the conventional perforated block unit, it can be updated to the perforated block unit of the present invention without making any changes to the air conditioner body, and Can be easily replaced as before. Further, the present invention employs a simple method of providing a locking portion using a side frame member, so that an increase in the manufacturing cost of the porous block unit can be avoided. In addition, the advantages obtained with the conventional porous block unit, such as high saturation efficiency with low airflow resistance, suppression of the growth of mold and various bacteria, and simplification of the humidifier device configuration, etc. The benefits can be enjoyed as they are. As described above, the present invention is a simple method in the field of humidification and air conditioning, and has a great effect of improving reliability.

[Brief description of the drawings]

FIG. 1 is an assembly view of a porous block unit which is an example of the present invention.

FIG. 2 is a view of a perforated block unit having side frame locking portions and side frame cutouts as an example of the present invention, viewed from the windward side.

FIG. 3 is a partial side view of a humidifier schematically showing a state of “displacement” in a way of stacking between upper and lower units when a conventional porous block unit is stacked.

FIG. 4 is a perspective view showing an example of an air conditioner incorporating a humidifier provided with a perforated block unit.

FIG. 5 is a perspective view of the porous block unit according to the present invention used in the middle stage in the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Perforated block body 2 Upper frame 3 Lower frame 4a, 4b Side frame 5a, 5b Side frame locking part 6a, 6b Side frame cutout part 13 Humidifier

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[Procedure amendment]

[Submission date] October 1, 1997

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claim 3

[Correction method] Change

[Correction contents]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] Claim 6

[Correction method] Change

[Correction contents]

Claims (6)

[Utility model registration claims] 1. A strip corrugated sheet made of an inorganic porous material, which is overlapped so that air can pass through it, the width of the sheet is set to a thickness, the length of the sheet is set to a height, and the length is determined by the number of sheets to be overlapped. Is formed in a porous block body having a horizontal width, and the porous block body is fixed by a frame frame in which an upper frame, a side frame, and a lower frame are joined, and water supplied from the upper surface is dropped into the porous block body. A porous block unit of a humidifier that allows air to pass in the thickness direction of the block,
A side frame locking portion in which the upper end of the side frame protrudes from the upper surface of the upper frame is provided on the upper portion of the frame frame, and the frame frame of the upper unit loaded on the unit is locked by the side frame locking portion. Perforated block unit for humidifier. 2. A strip corrugated sheet made of an inorganic porous material, which is overlapped so as to allow air to pass through, the width of the sheet is set to a thickness, the length of the sheet is set to a height, and the length is determined by the number of sheets to be overlapped. Is formed in a porous block body having a horizontal width, and the porous block body is fixed by a frame frame in which an upper frame, a side frame, and a lower frame are joined, and water supplied from the upper surface is dropped into the porous block body. A porous block unit of a humidifier that allows air to pass in the thickness direction of the block,
By positioning the lower end of the side frame above the lower surface of the lower frame, the side frame cutout is provided at the lower portion of the frame frame, and the side frame locking portion of the lower unit on which the unit is loaded is engaged with the side frame cutout. A perforated block unit of a humidifier, the lower frame of which is locked. 3. A strip corrugated sheet made of an inorganic porous material is superposed so as to allow air to pass through, the width of the sheet is set to a thickness, the length of the plate is set to a height, and the length is determined by the number of superposed sheets. Is formed in a porous block body having a horizontal width, and the porous block body is fixed by a frame frame in which an upper frame, a side frame, and a lower frame are joined, and water supplied from the upper surface is dropped into the porous block body. A porous block unit of a humidifier that allows air to pass in the thickness direction of the block,
The side frame locking portion according to claim 1 is provided on an upper portion of the frame frame,
A perforated block unit of a humidifier provided with the side frame cutout portion according to claim 2 in a lower portion of the frame frame. 4. A length determined by the number of superposed strips, wherein the strip-shaped corrugated sheets made of an inorganic porous material are overlapped so as to allow air to pass through, and the width of the strips is set to the thickness, the length of the strips is set to the height, and Is formed in a porous block body having a horizontal width, and the porous block body is fixed by a frame frame in which an upper frame, a side frame, and a lower frame are joined, and water supplied from the upper surface is dropped into the porous block body. A porous block unit of a humidifier that allows air to pass in the thickness direction of the block,
A humidifier in which a side frame locking portion in which the lower end of the side frame protrudes from the lower surface of the lower frame is provided at a lower portion of the frame frame, and the side frame locking portion locks a frame frame of a lower unit on which the unit is loaded. Perforated block unit. 5. A strip corrugated sheet made of an inorganic porous material, which is overlapped so as to allow air to pass through, a width of the sheet is set to a thickness, a length of the sheet is set to a height, and a length determined by the number of stacked sheets. Is formed in a porous block body having a horizontal width, and the porous block body is fixed by a frame frame in which an upper frame, a side frame, and a lower frame are joined, and water supplied from the upper surface is dropped into the porous block body. A porous block unit of a humidifier that allows air to pass in the thickness direction of the block,
The upper end of the side frame is positioned below the upper surface of the upper frame, so that the side frame cutout portion is provided on the upper portion of the frame frame, and the side frame locking portion of the upper unit stacked on the unit is connected to the side frame cutout portion. The porous block unit of the humidifier in which the upper frame is locked by engaging with the block. 6. A strip corrugated sheet made of an inorganic porous material is superposed so as to allow air to pass through, and the width of the sheet is set to a thickness, the length of the plate is set to a height, and the length is determined by the number of superposed sheets. Is formed in a porous block body having a horizontal width, and the porous block body is fixed by a frame frame in which an upper frame, a side frame, and a lower frame are joined, and water supplied from the upper surface is dropped into the porous block body. A porous block unit of a humidifier that allows air to pass in the thickness direction of the block,
The side frame locking portion according to claim 4 is provided at a lower portion of the frame frame,
A perforated block unit of a humidifier provided with the side frame cutout according to claim 5 above a frame frame.