JP2005279406A - Water reformer and production method therefor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water reformer which is capable of securing a large contact area with object water to be reformed, causes no stagnation and can be produced by a relatively simple method, and to provide a production method for the water reformer. <P>SOLUTION: The water reformer 1 is composed of ceramic filamentous bodies 2 which contains tourmaline 3 having a water reforming function, cavities formed inside the ceramic filamentous bodies 2 and voids 4 which are formed therein by three-dimensionally entangling a plurality of the ceramic filamentous bodies 2 and developing a net structure. The object water to be reformed is allowed to pass through the voids 4 and thereby, impurities such as scale, slime and rust are reformed. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a water reforming material and a method for producing the same, and more particularly to a water reforming material used for reforming water to be reformed such as circulating water circulating in a cooling tower and a method for producing the same. It is.

  Conventionally, in water systems, problems such as metal corrosion, slime due to growth of fungi, etc., scale generation due to calcium in water, etc. have occurred, especially air conditioning equipment related to large buildings such as factories and buildings In the open circulation type cooling water system used for refrigeration, freezer, etc., the generation of these impurities has been regarded as a problem.

  Here, the open-circulation type cooling tower sends outside air into the cooling tower by a ventilation fan installed inside, evaporates a part of the circulating water, cools the circulating water using the heat of vaporization, and cools it. The circulated water is supplied to a heat exchanger such as equipment.

  And since this circulating water is repeatedly used by circulating through the cooling tower and the heat exchanger, the circulating water is gradually concentrated by evaporation, and when used for a long time, harmful gases in the atmosphere absorbed in the circulating water And salt concentrations such as impurities increase. As a result, there arises a problem that corrosion in the cooling tower and piping, and scale due to growth of fungi and the like due to slime and calcium in water occur.

  Therefore, in order to prevent deterioration of water quality due to the generation of impurities, a process of introducing a chemical into the cooling tower is performed.

  In addition, a method of newly supplying makeup water to the cooling tower and diluting the salt concentration of impurities and the like and then releasing a part of the circulating water to the outside of the cooling tower (so-called blow) is performed. Thereby, salt concentration, such as impurities in circulating water, can be kept below fixed.

  Then, in addition to the above-mentioned supplementary water that keeps the salt concentration below a certain level, ceramic components such as tourmaline having a water reforming function are formed into small-diameter granules such as balls, cylinders, and tubes. Further, there is one that utilizes a water modifier obtained by further firing. In this case, a predetermined cartridge (housing) made of stainless steel or the like is loaded with a plurality of water modifiers, and the cartridge is installed in a circulating water path that circulates in the cooling tower. There is known a method in which a reforming material is brought into contact to modify the circulating water (see, for example, Patent Document 1). These circulations can be broadly classified into natural leaving methods and forced circulation methods.

  At this time, the efficiency related to the reforming of the circulating water by the water reforming material depends on the surface area of the water reforming material (in other words, the contact area with the circulating water). Smaller diameters are desired.

Utility Model Registration No. 2603706

  However, in the above-described treatment of adding chemicals, the chemical concentration increases due to long-term use, and there is a risk of environmental pollution.

  In addition, the water reforming material loaded in the cartridge is in a state in which the individual water reforming materials are closely packed (a dumpling shape), and is in contact with the surrounding water reforming material rather than the area in contact with the circulating water. In some cases, the area is larger and sufficient water reforming cannot be performed. Furthermore, when the water reforming material is in a dense state in the cartridge, the flow of the circulating water is obstructed, and the circulating water stays in the vicinity of the cartridge, so that sufficient reforming efficiency cannot be obtained. There was sex. Moreover, in order to produce a water-reducing material having a small diameter, a high degree of granulation technology is required, and a great production cost is required. Furthermore, if the diameter is too small, it may flow out of the loaded cartridge, and the water reforming material may diffuse into the cooling tower or the piping.

  Therefore, in view of the above circumstances, the present invention can take a large contact area between the ceramic component having a water reforming function and the circulating water, and further does not hinder the flow of the circulating water and It is an object to provide a manufacturing method thereof.

  In order to solve the above-mentioned problems, the water reforming material of the present invention has the following features: “A plurality of ceramic filaments containing a ceramic component having a water reforming function are three-dimensionally entangled, and the water to be reformed flows inside. It is mainly composed of “a network structure in which possible fixed voids are formed”.

  Here, the water to be reformed is water that generates scale, slime, rust, and the like, and corresponds to, for example, circulating water having a high salt concentration used for a long period in the cooling tower. The ceramic component having a water reforming function includes, for example, a silver ion-containing compound having a sterilizing effect, a tourmaline ore that prevents scale, and the like obtained by firing at about 700 ° C. to 800 ° C. It is done.

  Therefore, according to the water reforming material of the present invention, the ceramic filament containing the ceramic component having the water reforming function is formed so as to exhibit a three-dimensional network structure intricately entangled three-dimensionally. Thereby, a plurality of fixed voids are formed inside the water reforming material, and the water to be reformed can be passed through the voids and brought into contact with the surface of the ceramic thread-like body. At this time, since the ceramic thread-like body is formed with a three-dimensional network structure, the surface area (contact area) of the ceramic thread-like body in contact with the water to be modified has a conventional water-reforming material such as a spherical shape. Compared to the case of using the same volume as the water reforming material, it is greatly improved. Thereby, the impurity which reached | attained the space | gap inside a water modifier is reformed by the water reforming function of a ceramic component. As a result, it becomes possible to reform the water of the circulating water circulating through the cooling tower and the equipment. Further, as described above, since the water reforming material of the present invention has a plurality of fixed voids therein, even if it is installed in the middle of the circulation path, for example, in a state of being loaded in a cartridge, the circulating water Does not obstruct the flow.

  Further, the water modifier of the present invention is “the ceramic filamentous body contains at least one of tourmaline ore, shirasu, barley stone, granite, titanium oxide, apatite compound, and silver ion-containing compound. It does not matter.

  Here, the reforming target water is reformed by releasing a weak current into the reforming target water. Further, since shirasu, barley stone, granite, apatite compound, and titanium oxide-containing ceramics are porous, they have the property of adsorbing impurities and the like in the water to be modified and modifying the water. The silver ion-containing compound has a function of suppressing the growth of microorganisms.

  Therefore, according to the water modifier of the present invention, any one of tourmaline ore, shirasu, barley stone, granite, titanium oxide, apatite compound, and silver ion-containing compound is used as the ceramic component constituting the ceramic filament. . As a result, the water to be reformed is reformed by the water reforming function of these ceramic components.

  In general, tourmaline is known to be in an amorphous state when it is in contact with a high temperature of 1000 ° C. or higher, thereby deteriorating the above-described functions such as electrolysis. . Therefore, when heat treatment such as firing of ceramic components including tourmaline is performed, it is desirable to perform the heat treatment at 1000 ° C. or lower.

  Further, the water reforming material of the present invention may be “the ceramic thread-like body is configured to have a cavity inside”.

  Therefore, according to the water modifier of the present invention, a cavity is formed inside the ceramic thread. Here, a part of the cavity may communicate with the surface of the ceramic thread-like body, and the water to be modified may enter the cavity. Thereby, the surface area per unit volume can be further increased, and the efficiency of the water reforming function can be increased.

  The method for producing a water reforming material of the present invention is a method for producing a water reforming material for producing a water reforming material according to any one of claims 1 to 3, A preparation process for preparing a ceramic solution containing a ceramic component having a water reforming function at a predetermined mixing ratio, and a network structure in which a plurality of base filaments are intertwined three-dimensionally and have a large number of voids inside. An application step of applying the ceramic solution to the core material to be presented; and drying the core material to which the ceramic solution has been applied in the application step, and forming a ceramic layer of the ceramic component on the surface of the base filament of the core material A drying stratification step to be formed, and a firing step in which the core material is fired and the base thread-like body on which the ceramic layer is formed is converted into the ceramic thread-like body ”.

  Here, the ceramic solution contains a ceramic component having a water-reforming function, and for example, a powdered tourmaline and water mixed at a predetermined blending ratio to prepare a predetermined viscosity. It is done. In this case, other raw materials may be appropriately mixed in addition to tourmaline and water. In addition to water, organic solvents such as dimethylformamide, alcohols, and glycols may be used as the solvent.

  The base thread-like body is formed in a thread shape (or string shape) and is formed so as to be able to bend flexibly, and examples thereof include natural fibers or synthetic fibers. And the core material which exhibits a three-dimensional network structure is constructed | assembled by intertwining the base filaments intricately. In addition, as a raw material of a base thread-like body, you may be comprised from metal fibers, such as steel wool, or paper other than the natural fiber and synthetic fiber mentioned above.

  Further, the coating step is to uniformly attach the ceramic solution to the above-described base filament, for example, a method in which the core material is immersed in the ceramic solution, or a method in which the ceramic solution is sprayed onto the core material using a spray. Etc.

  Therefore, according to the method for producing a water modifying material of the present invention, a ceramic solution containing a ceramic component having a water modifying function is prepared at a predetermined blending ratio, and the obtained ceramic solution exhibits a three-dimensional network structure. A ceramic layer is formed on the surface of the base filament by applying to the core material by dipping or the like and drying the core material. Furthermore, by firing the core material on which the ceramic layer is formed at a high temperature of, for example, about 700 ° C. to 800 ° C., the ceramic layer and the base filament are converted into a ceramic filament having a water reforming function. A material can be manufactured. Thus, the contact area with the water to be modified is increased by a relatively simple method in which a core material previously formed to exhibit a three-dimensional network structure is used and a ceramic solution is applied thereto. It becomes possible to manufacture the water modifier which has the outstanding effect | action described in any one of thru | or 3.

  Further, the water modifying material of the present invention is "the base filament that constitutes the core material uses at least one of a synthetic fiber or a natural fiber mainly composed of a thermoplastic resin, and the firing step includes: It may further include a “burn-out step of burning out the base filament”.

  Here, synthetic fibers composed mainly of a thermoplastic resin include, for example, olefinic resins such as polyethylene and polypropylene, and are easily pyrolyzed and carbonized by being treated at a high temperature. It can be burned out. Natural fibers include, for example, silk, cotton, hemp and the like, and have the property of being burnt down when processed at a high temperature like thermoplastic resins.

  Therefore, according to the method for producing a water modifying material of the present invention, the core material made of synthetic resin is burned out in the firing step. Thereby, the water modifier which has a cavity inside a ceramic filament is manufactured. As a result, the contact area between the ceramic and the water to be reformed increases, and the water to be reformed can be efficiently reformed.

  Moreover, the manufacturing method of the water modifier of the present invention may be “the preparation step further includes a cellulose derivative addition step of adding a cellulose derivative to the ceramic solution to prepare”.

  Here, in the application step, when the viscosity (viscosity) of the ceramic solution is low, even when the core material is applied, the adhesion to the surface of the base filament may not be sufficient. On the other hand, when the viscosity of the ceramic solution is too high, the ceramic solution may not sufficiently penetrate into the inside of the intertwined core material. As a result, it is assumed that the thickness of the ceramic layer formed on the surface of the base filamentous body by the coating process and the subsequent drying stratification process is not uniform or is not completely covered on the surface of the base filamentous body. Is done. Furthermore, the ceramic component blended in the ceramic solution has a greater specific gravity than water, and tends to precipitate at the bottom of the container. Therefore, it is necessary to adjust the viscosity of the ceramic solution and prevent precipitation.

  Here, the cellulose derivative is a kind of water-soluble polymer, and examples thereof include methyl cellulose, ethyl cellulose, carboxymethyl cellulose (CMC), and hydroxymethyl cellulose (HMC). These cellulose derivatives, particularly carboxymethylcellulose, are generally used to improve and maintain the properties of target liquids, as precipitation inhibitors for foods, thickeners for paints, and the like. is there.

  Therefore, according to the method for producing a water modifying material of the present invention, the method includes a cellulose derivative addition step of adding a cellulose derivative to the ceramic solution at a predetermined blending ratio. This makes it possible to improve the viscosity of the ceramic solution applied to the base filament and to prevent precipitation of the ceramic component.

  As an effect of the present invention, a water reforming material having a network structure can be produced by three-dimensionally entanglement of a ceramic filament containing a ceramic component having a water reforming function. Thereby, the ceramic component contained in the ceramic filament and the water to be modified come into contact with each other, and impurities such as scale contained in the water to be modified in the cooling tower can be separated and removed. In addition, because of the structure exhibited by the water reforming material of the present invention, a large contact area with the water to be reformed and a space through which the water to be reformed pass can be secured without causing retention of the water to be reformed. High reforming efficiency can be desired.

  Hereinafter, a water reforming material 1 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4. Here, FIG. 1 is an explanatory view showing the configuration of the water reforming material 1 of the present embodiment, FIG. 2 is an enlarged view schematically showing the water reforming material 1, and FIG. FIG. 4 is an explanatory view showing an example of use of the water modifier 1.

  As shown in FIGS. 1 and 2, the water reforming material 1 of the present embodiment has a mesh structure in which a plurality of ceramic thread bodies 2 and a plurality of ceramic thread bodies 2 are intertwined to form a three-dimensional network structure. It is mainly composed of voids 4 formed inside the structure.

Here, the ceramic thread-like body 2 is a fired body obtained by firing a ceramic component containing a powdered tourmaline 3 having an excellent water reforming function into a thread shape, and is formed in a substantially tubular shape having a cavity 5 therein. . Therefore, a lot of tourmaline 3 exists on the surface of the ceramic filament 2.

  Therefore, the water reforming material 1 of the present embodiment is formed in a three-dimensional manner by the ceramic thread-like body 2 and thus has a structure in which water easily enters the internal void 4. Thereby, the water reforming material 1 can be arranged so as to come into contact with the water to be reformed and the reforming action by the tourmaline 3 can be obtained. As a result, the water to be reformed can be reformed. In addition, since the water modifying material 1 of the present embodiment is configured to exhibit a three-dimensional stitch structure, the surface area of the ceramic thread-like body 2 per unit volume can be increased. Thereby, the contact area with the water to be reformed described above is increased, and the water reforming efficiency can be greatly increased as compared with conventional water reforming materials such as a spherical shape. In addition, since the water flow is not hindered by the gap 4, even if it is installed in a place where water stagnation is likely to occur, such as a water tank, the water to be reformed can be promptly placed inside the water reforming material 1. Compared with a water reforming material that requires a certain amount of water flow as in the prior art, the place of use is not limited. Further, since the ceramic thread-like body 2 is formed in a substantially tubular shape having the cavity 5 therein, the surface area of the ceramic thread-like body 2 per unit volume can be further increased, and the efficiency of the water reforming function can be increased. It is.

  Next, the manufacturing method 20 of a water modifier is demonstrated mainly based on FIG. Here, the water modifying material 1 is manufactured by previously immersing a core material that becomes the core of the ceramic thread-like body 2 in a ceramic solution containing tourmaline 3, and further drying and firing. Details will be described.

  Here, as the core material, a mesh-like PET resin material having a porosity of 98% is used in this embodiment. In such a mesh-like PET resin material, a plurality of PET fibers are intricately entangled three-dimensionally. That is, the base filament is formed in a three-dimensionally complex entanglement, and has substantially the same shape as the water reforming material 1 shown in FIG. Therefore, the illustration of the core material is omitted here. In addition, the ceramic thread-like body 2 in FIG. 1 substantially shows the configuration of the base thread-like body.

  First, a ceramic solution for applying a core material is prepared (preparation step S1). Specifically, it is prepared by mixing powdered tourmaline 3 adjusted to an average particle size of 3.0 μm with a ceramic component as a base, and further adding water. At this time, in order to adjust the viscosity of the ceramic solution, by adding an appropriate amount of carboxymethyl cellulose (CMC) as a thickener, the adhesion to the base filament when the core material is immersed is improved, and the ceramic solution It becomes possible to uniformly disperse the ceramic components therein.

  And a core material is immersed in the ceramic solution prepared in preparation process S1 (application | coating process S2). As a result, the ceramic solution enters the voids inside the core material, and the voids are filled with the ceramic solution. As a result, the ceramic solution adheres to all the surfaces of the base filaments constituting the core material.

  Thereafter, the core material is pulled up from the ceramic solution and dried (dry stratification step S3). At this time, by pulling up the core material from the ceramic solution, the ceramic solution adheres only to the surface of the base filament, and the ceramic solution filled in the voids is removed. Here, in the manufacturing method 20 of the water reforming material of this embodiment, after naturally drying at room temperature in advance and removing most of the water contained in the ceramic solution, the temperature is further around 120 ° C. for about 2 hours. Dry heat treatment is performed. Thereby, the ceramic solution adhering to the surface of the base filament can be completely dried, and a ceramic layer made of a ceramic component containing tourmaline 3 can be formed on the surface.

  Then, the core material which passed through dry stratification process S3 is baked using a baking furnace (baking process S4). As a result, since the ceramic layer formed on the surface of the base filament is processed at a high temperature of about 800 ° C., the ceramic component is sintered, and the shape of the core material is kept almost unchanged. Converted. Thereby, the water modifier 1 which has the ceramic thread-like body 2 intricately intertwined and has a large number of voids 4 inside can be manufactured. In particular, since the ceramic thread-like body 2 contains tourmaline 3 having an excellent water reforming function, the water reforming can be further promoted by contacting the circulating water 11 of the cooling tower with the surface of the ceramic thread-like body 2. it can.

  In addition, the base filament which comprises a core material is formed from the fiber which uses PET resin as a raw material as mentioned above. Therefore, by treating at a high temperature around 800 ° C., the base filament is thermally decomposed and burned out. As a result, after firing, the portion occupied by the base filament before firing becomes the cavity 5. In the present embodiment, the firing temperature is set to about 800 ° C., but this is because when the tourmaline 3 contained in the ceramic layer is heated to a high temperature of 1000 ° C. or higher, the crystal of the tourmaline 3 is destroyed. This is because it becomes amorphous (amorphous), loses functions such as electrolysis, and impairs the water reforming action.

  Therefore, according to the water reforming material production method 20 of the present invention, the water reforming material 1 having a three-dimensional network structure with an increased contact area with the circulating water 11 can be produced by a relatively simple method. It becomes possible. In particular, since a conventionally used mesh-like PET resin material can be used as the core material of the water reforming material 1, labor and cost for preparing the core material in advance are not required. In addition, it is possible to burn out the base filament and form the ceramic filament 2 having the cavity 5 therein, and to increase the contact area between the water modifier 1 and the circulating water 11.

  Next, the usage method in the case of using the water modifier 1 in a cooling tower is demonstrated based on FIG.

  Here, the cooling tower 10 using the water modifier 1 will be described in detail. The cooling tower 10 is provided connected to the inlet pipe 12 and the inlet pipe 12 for collecting the circulating water 11 that is warmed by being supplied to a heat exchanger (not shown) such as an air conditioner or a refrigerator. 11, a sprinkling pipe 13 for sprinkling water 11, a filler 14 provided at the lower part of the sprinkling pipe 13, and a circulating material 11 sprinkled from the sprinkling pipe 13, and an upper part of the water inlet pipe 12. The circulating water 11 to be brought into contact with the outside air and cooled, the water tank 16 for storing the circulating water 11 provided at the lower part of the filler 14 and cooled by the fan 15, and between the filler 14 and the water tank 16 And a buffer material 17 for preventing water droplets or the like of the circulating water 11 from dropping directly from the filler 14 into the water tank 16, and a drain pipe for supplying the circulating water 11 stored in the water tank 16 to the external heat exchanger again. Mainly composed of 18 and To have.

  And the water modifier 1 is mounted and used for the above-mentioned water tank 16 (refer FIG. 4). At this time, since the water reforming material 1 does not impede the flow of the circulating water 11, it is possible to maintain a quick water flow (see the arrow in FIG. 4). The water reforming material 1 is loaded and placed in a container 19 through which the circulating water 11 can pass. At this time, it is possible to prevent the water reforming material 1 from swinging in the water tank 16, and even when a fragment of the water reforming material 1 is generated due to long-term use, the fragment is discharged from the water discharge pipe 18. Can be prevented.

  Thereby, the circulating water 11 stored in the water tank 16 passes through the gap 4 formed inside the three-dimensional network structure of the water reforming material 1. At this time, impurities P such as scale, slime, and rust contained in the circulating water 11 come into contact with the surface of the ceramic filament 2. As a result, the circulating water 11 is modified by the tourmaline 3 contained in the ceramic filament 2.

  As a result, the circulating water 11 containing the impurities P is reformed. Moreover, generation | occurrence | production of red rust and red water in a cooling tower and piping can be prevented.

  The present invention has been described with reference to a preferred embodiment. However, the present invention is not limited to this embodiment, and as described below, improvements and designs can be made without departing from the scope of the present invention. It can be changed.

  That is, in the water reforming material 1 of the present embodiment, the ceramic filament 2 containing the tourmaline 3 has been presented. However, the present invention is not limited to this. For example, the modification is performed by magnetically treating the water to be reformed. It may also contain a magnetic material such as magnetite, and other materials having a water reforming function such as shirasu, barleystone, granite, titanium oxide, apatite compound, and silver ion-containing compound. It is also possible to use a mixture of a plurality of these ceramic components. Thereby, a synergistic effect is acquired and the water reforming material provided with a plurality of water reforming functions can be manufactured.

  Furthermore, although what used PET resin as a raw material was shown, it is not limited to this, For example, even if using natural fibers, such as silk, cotton, and linen, or paper I do not care. Even in this case, the core material is burned out by the firing step, and it is possible to form a ceramic thread having a cavity. It is also possible to use metal fibers such as steel wool as the core material. Thereby, since metal fiber etc. remain in the ceramic thread-like body after firing, the strength against the impact of the water modifier can be improved. Furthermore, when using magnets such as ferrite magnets, water can be treated magnetically.

  In addition, a network structure in which the base filaments are three-dimensionally intricately entangled is shown as the structure of the core material, but the present invention is not limited to this, and a honeycomb-shaped three-dimensional network structure is formed. It doesn't matter. Even in this case, it is possible to manufacture a water reforming material in which many fixed voids in which the water to be reformed can flow are formed.

  In addition, carboxymethyl cellulose (CMC) has been presented as a thickener to be added to the ceramic solution. However, the present invention is not limited thereto, and examples thereof include cellulose derivatives such as methyl cellulose, ethyl cellulose, and hydroxymethyl cellulose (HMC). It doesn't matter.

It is explanatory drawing which shows the structure of a water modifier. It is an enlarged view which shows a water reforming material typically. It is a flowchart which shows the manufacturing method of a water modifier. It is explanatory drawing which shows the usage example of a water modifier.

Explanation of symbols

1 Water modifier 2 Ceramic thread 3 Tourmaline (ceramic component)
4 Cavity 5 Cavity 11 Circulating water (Reformation target water)
20 Manufacturing method of water modifier S1 Preparation step S2 Impregnation step S3 Dry stratification step S4 Firing step

Claims (6)

  A plurality of ceramic filaments containing a ceramic component having a water reforming function are three-dimensionally entangled, and exhibit a network structure in which fixed voids that allow the water to be reformed to flow are formed. Water reforming material. The ceramic thread-like body is
The water reforming material according to claim 1, comprising at least one of tourmaline ore, shirasu, barleystone, granite, titanium oxide, apatite compound, and silver ion-containing compound. The ceramic thread-like body is
The water reforming material according to claim 1 or 2, wherein the water reforming material has a cavity inside. A method for producing a water reforming material for producing the water reforming material according to any one of claims 1 to 3,
A preparation step of preparing a ceramic solution containing a ceramic component having a water reforming function at a predetermined blending ratio;
A plurality of base filaments are entangled three-dimensionally, and an application step of applying the ceramic solution to a core material having a network structure having a large number of voids inside,
A drying and stratification step of drying the core material coated with the ceramic solution in the coating step, and forming a ceramic layer made of the ceramic component on the surface of the base thread-like body of the core material;
A method for producing a water reforming material, comprising: a firing step of firing the core material and converting the base thread-like body on which the ceramic layer is formed into the ceramic thread-like body. The base filaments constituting the core material are:
At least one of a synthetic fiber mainly composed of a thermoplastic resin or a natural fiber is used,
The firing step includes
The method for producing a water reforming material according to claim 4, further comprising a burning-out step of burning out the base filament. The preparation step includes
The method for producing a water reforming material according to claim 4 or 5, further comprising a cellulose derivative addition step of preparing the ceramic solution by adding a cellulose derivative.

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