KR20190100684A - Heat storage panel for prefab heating floor with far-infrared ray, anion emission function and axial heat resistance - Google Patents

Abstract

The present invention relates to a heat storage panel for a prefabricated heating floor, which stores heat, allows the same to be maintained for a long time, is possible to increase energy efficiency, applies far-infrared ray and anion emission function and a sterilization function, and is possible to lead more pleasant life for a user. The present invention includes: a heat storage block main body comprising a mortar composition; and a heat storage pad embedded in the heat storage block main body, wherein the heat storage pad comprises: a paraffin sheet having the melting point in a temperature range from 30 to 55 °C and solidifying a glass fiber sheet by immersing the same into a paraffin compound storing heat while being liquefied; and a sealing bag preventing the liquefied paraffin compound from being leaked while surrounding and sealing the paraffin sheet.

Description

Heat storage panel for prefabricated underfloor floor with far infrared rays, negative ion release function and heat storage ability {HEAT STORAGE PANEL FOR PREFAB HEATING FLOOR WITH FAR-INFRARED RAY, ANION EMISSION FUNCTION AND AXIAL HEAT RESISTANCE}

The present invention relates to a prefabricated on-floor floor panel, and in particular, it is possible to accumulate heat to maintain a long time to increase energy efficiency, and at the same time, to provide far infrared rays, negative ion release and antibacterial function, so that the user can enjoy a more comfortable life. It relates to a heat storage panel for ondol floor.

In general, the heating construction method installed for the purpose of conventional indoor heating is to lay a heat insulating material on the base floor of the indoor and arrange the heat medium pipe in a zigzag shape, fill it with the height of gravel or sand and the heat medium pipe, and apply mortar on the top. I have done room heating.

In particular, apartment houses for the purpose of housing such as apartments or multi-family homes are installed by laying foaming concrete on the base floor layer constructed by interlaminar framing for floor heating, and embedding heating material supplied with hot water and then plastering the floor. In the case of construction in Korea, most of the houses are being constructed by the ondol method by such heating piping.

As described above, the floor method of heating the floor by the heating pipe can be largely classified into a wet method and a dry method.

First, the wet method is to place concrete on the floor, that is, the slab structure, and then install the heating pipe evenly over the floor so that the hot water flows on the concrete when it is hardened. After the concrete is poured on the floor, the floor is leveled to be flat, and after curing, a finishing material (for example, a sheet) is completed.

And, the dry method is completed by placing a heat insulating board (that is, an ondol panel) on the concrete floor surface for heating, and then installing a heating pipe in which hot water flows on the upper surface of the insulating board. do.

The wet method has a problem that it is very vulnerable to impacts between floor noise and vibration, and because the weight of the concrete is heavy and the concrete has to be laid over a certain thickness in order to bury the heating material, the self-load is very high. There was a problem that the time required to wait until the hardening after pouring, as well as difficult construction in winter. In addition, it is very difficult to find the leak point and difficult to maintain because it is necessary to remove the poured concrete to check for defects such as leakage of heating materials.

Therefore, in recent years, a lot of dry methods for making and constructing ondol floor panels have been proposed so as to supplement the disadvantages of the wet method. For example, prefabricated ondol, for example, registered utility model publication No. 0324292 (August 25, 2005.), registered utility model publication No. 0339209 (August 1, 2004.), and Patent Publication No. 2005-21749 (published on March 3, 2005). Techniques related to panels are disclosed.

However, the conventional ondol floor panels used in the dry process method need improvement in this regard because the energy efficiency is low because there is no function of accumulating heat and maintaining them for a long time.

Korea Patent Publication No. 1764160 (2017.07.27)

Accordingly, the present invention has been proposed to solve the conventional problems as described above, and the object of the present invention is to accumulate heat to maintain a long time to increase energy efficiency and at the same time to give far infrared rays, anion release and antibacterial function The present invention provides a heat storage panel for a prefabricated ondol floor that enables a user to enjoy a more comfortable life.

In order to achieve the above object, the heat storage panel for prefabricated ondol floor according to the technical idea of the present invention, a heat storage block body made of a mortar composition; A heat storage pad embedded in the heat storage block body, wherein the heat storage pad has a melting point in a temperature range of 30 to 55 ° C., and has a melting point and liquefied, and a paraffin compound solidified by impregnating a glass fiber sheet with a paraffin compound that accumulates heat. And, it is characterized in that the technical configuration consisting of a sealing bag to prevent the leakage of the liquefied paraffin compound while wrapping and sealing the paraffin sheet.

Here, the paraffin sheet may be characterized in that it is laminated in multiple stages.

In addition, the paraffin sheet may be formed by pressing in a heated state by a thermocompressor.

In addition, the sealing bag may be characterized in that the sheet made of aluminum surface coated with PET.

In addition, the paraffin compound is n- tetradecane, n-pentadecane, n-hexadecane, n-heptadecane, n-octadecane, n-nonadecane, n-icosane, n-docoic acid, n-tetracoic acid , n-hexacoic acid, n-octacoic acid, and at least one selected from n-triacontane.

In addition, the glass fiber sheet may be characterized by consisting of one selected from a glass surface mat, yarn cross, chopped strand mat, roving cross mat having a density of 100 ~ 200g / m ² .

In addition, the heat storage block body is 30 to 50% by weight of cement; 18-30 weight% of siliceous sand; 10-20% by weight of limestone; 5-10% by weight of calcium sulfoaluminate as a shrinkage reducing agent; 5-10% by weight of natural anhydrite; 0.1 to 5% by weight of a thickener, 0.1 to 5% by weight of a high fluidizing agent, and 0.5 to 5% by weight of an antifoaming agent as an additive; 10-20% by weight of one or two or more mixtures of calcite, biotite, biotite, elvanite, tourmaline, fluorite, obsidian, illite, olivine and hornblende as functional minerals for improving heat storage performance and enhancing far infrared rays and anion functions; It can be characterized in that it is prepared from a mixed self-horizontal mortar composition.

In addition, 0.1 to 15% by weight of an organic resin powder is added to the self-horizontal mortar composition to improve mechanical strength and water resistance, and the organic resin powder may be mixed with EVA or PVAc or acryl, which is manufactured in the form of an emulsifying powder resin. It may be characterized by consisting of one kind or a mixture of two or more kinds.

In addition, the fluidizing agent of the additive contained in the self-horizontal mortar composition is used at least one of melamine-based, naphthalene-based, polycarboxylic acid-based, the thickener is selected from ethyl cellulose-based, methyl cellulose-based, material separation inhibitor As an antifoaming agent, it can be characterized as using a vegetable antifoaming agent.

Further, in addition to the self-horizontal mortar composition, functional minerals composed of at least one of pyrophyllite, biotite, biotite, elvanite, tourmaline, fluorite, obsidian, illite, olivine and hornblende may have an average particle diameter of less than 1 mm, 1 to 2 mm, and 2 After mixing in a weight ratio of 30:30:40, each divided into a size of ~ 4mm, and then added in 30 to 50% by weight compared to the magnetic horizontal mortar composition, at least one of the mill scale and foundry snow 20 compared to the magnetic horizontal mortar composition The heat storage block body may be prepared from the secondary mortar composition to which ˜40 wt% is added.

Further, the primary premixing is performed by using a mixer having a capacity of 0.5 to 1.0 m 3 rotating the secondary mortar composition at 50 to 150 rpm, and the water of the secondary mortar composition to the secondary mortar composition is subjected to the primary premixing. After the addition, the secondary premixing may be performed using a mixer having a capacity of 0.5 to 1.0 m 3 rotating at 50 to 150 rpm.

In addition, the upper surface of the heat storage block body is formed with a pipe groove to allow the hot water pipe is seated, and a wider width than the pipe groove in the upper portion of the pipe groove is formed in the tape mounting groove, It may be characterized in that it further comprises a thermally conductive metal tape attached to cover and protect the hot water pipe.

Prefabricated ondol floor heat storage panel according to the present invention is able to increase the energy efficiency by using a paraffin compound to accumulate heat by a phase change in a certain temperature range and to maintain for a long time.

In addition, the present invention provides far-infrared, anion-releasing and antibacterial function to enable the user to live a more comfortable life.

1 is a cross-sectional view for explaining the configuration of the heat storage panel for prefabricated ondol floor according to an embodiment of the present invention
Figure 2 is a flow chart for explaining a method for manufacturing a prefabricated ondol floor panel according to an embodiment of the present invention

With reference to the accompanying drawings will be described in detail for the prefabricated ondol floor heat storage panel according to the embodiments of the present invention. As the inventive concept allows for various changes and numerous modifications, particular embodiments will be illustrated in the drawings and described in detail in the text. However, this is not intended to limit the present invention to the specific form disclosed, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. In describing the drawings, similar reference numerals are used for similar elements. In the accompanying drawings, the dimensions of the structure is shown to be larger than the actual size for clarity of the invention, or to reduce the actual size to understand the schematic configuration.

In addition, terms such as first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component. On the other hand, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

1 is a cross-sectional view for explaining the configuration of a heat storage panel for a prefabricated ondol floor according to an embodiment of the present invention.

As shown, the heat storage panel for prefabricated ondol floor according to an embodiment of the present invention comprises a heat storage block body 110, a heat storage pad 120, a thermal conductive metal tape 130, a predetermined temperature range In addition to improving energy efficiency by the heat storage pad 120 having a unique configuration that allows heat to be accumulated and maintained for a long time by phase change, the heat storage block body 110 is provided with far infrared rays, anion emission and antibacterial function. It is configured to lead a more comfortable life.

Hereinafter, the heat storage panel for a prefabricated ondol floor according to an embodiment of the present invention will be described in detail with reference to the above components.

The heat storage block body 110 is formed in the shape of a flat hexahedron so as to be assembled to each other to form a whole ondol floor when looking at its shape and the hot water pipe 10 is seated on the top surface of the heat storage block body 110 The pipe groove 111 and the thermally conductive metal tape 130 formed in a wider width than the pipe groove 111 in the upper portion of the pipe groove 111 to cover and protect the hot water pipe 10 are easily installed. Tape seating groove 112 is formed to.

The heat storage block body 110 is basically 30 to 50% by weight of cement, 18 to 30% by weight of silica sand, 10 to 20% by weight of limestone, 5 to 10% by weight of calcium sulfoaluminate as a shrinkage reducing agent, and 5 to 10% of anhydrous gypsum. 10% by weight, 0.1-5% by weight thickener, 0.1-5% by high fluidizing agent, 0.5-5% by weight defoamer, minerals of your company, biotite, biotite, elvan, tourmaline, pyrite, obsidian, illite, One or two or more mixtures of olivine and hornblende are prepared from a self-horizontal mortar composition containing 10 to 20% by weight.

Attention in the configuration of the heat storage block body 110 is a functional mineral as a 325 mesh particle size of one or two or more of the serpentine, biotite, biotite, elvan, tourmaline, fluorite, obsidian, illite, olivine, hornblende It is included in a high specific gravity of 10 to 20% by weight, thereby having a heat storage performance, far infrared rays and anion release function.

For the heat storage block body 110, 0.1-15% by weight of an organic resin powder is further added to the self-horizontal mortar composition to improve mechanical strength and water resistance. Here, the organic resin powder is composed of one or two or more kinds of EVA or PVAc, acrylic, which is manufactured in the form of an emulsifying powder resin.

In addition to the self-horizontal mortar composition for the heat storage block body 110, a functional mineral consisting of at least one of feldspar, biotite, biotite, elvan, tourmaline, fluorite, obsidian, illite, olivine, hornblende has an average particle diameter of 1 mm Less than, 1 to 2mm, 2 to 4mm sized in a state of 30:30:40, respectively, mixed in a weight ratio of 30 to 50% by weight compared to the self-horizontal mortar composition, at least one of the mill scale and casting snow 20 to 40% by weight relative to the self-horizontal mortar composition is added.

The heat storage pad 120 serves to continuously maintain the warmth of the ondol floor while maintaining the accumulated state for a long time by receiving heat from the hot water pipe 10. To this end, the heat storage pad 120 has a melting point in a temperature range of 30 to 55 ° C., and a paraffin sheet 121 solidified by impregnating a glass fiber sheet with a paraffin compound that accumulates heat and liquefies heat, and the paraffin sheet 121. While encapsulating and sealing, the liquid crystal paraffin compound is formed of a sealing bag 122 to prevent leakage.

Here, the paraffin sheet 121 is formed in a form in which several sheets are pressed through a process of being pressed at a temperature of 45 to 50 ° C. for 10 seconds by a thermocompressor in a sealing bag 122 in a state in which 3 to 10 sheets are stacked in multiple stages. . The glass fiber sheet used in the paraffin sheet 121 serves as a medium for catching the paramin compound while maintaining the form of the paraffin sheet 121 and has a density of 100 to 200 g / m ² . It consists of one selected from chopped strand mat and roving cross mat.

In addition, the paraffin compound in the paraffin sheet 121 is n- tetradecane, n-pentadecane, n-hexadecane, n-heptadecane, n-octadecane, n-nonadecane, n-icosan, n-doco At least one selected from acid, n-tetracoic acid, n-hexacoic acid, n-octacoic acid, and n-triacontane. In the case of such a paraffin compound is heated to a temperature of 50 ~ 55 ℃ to liquefy and impregnated glass fiber sheet to solidify at room temperature.

On the other hand, the sealing bag 122 of the heat storage pad 120 is composed of a sheet coated with aluminum on the PET to have a material having a relatively high thermal conductivity while being able to withstand at a high temperature of 100 ℃ or more. In addition, when the paraffin sheet 121 is wrapped in the sealing bag 122 to seal the vacuum, air is removed from the inside of the sealing bag 122 and the sealing bag 122 is in a state of being in close contact with the paraffin sheet 121. desirable.

The thermally conductive metal tape 130 is attached to the tape seating groove 112 formed on the top surface of the heat storage block body 110 to cover and protect the hot water pipe 10.

Subsequently, the composition and the detailed description of each raw material used in the prefabricated ondol floor heat storage panel according to the embodiment of the present invention are as follows.

First, general portland cement is used as a binder to maintain the overall strength in the self-horizontal mortar composition used in the heat storage block body 110, wherein the addition amount is preferably 30 to 50% by weight. If the added amount is less than 30% by weight, the mechanical strength is lowered. If the added amount is more than 50% by weight, the amount of the material for providing heat storage and functionality is relatively reduced, so that the heat storage property, far infrared rays, and anion release effect are deteriorated.

It is preferable to use silica sand and limestone as the strength enhancer, and silica sand is suitable for Nos. 6 to 7 in general specifications, and the addition amount is preferably 20 to 30% by weight, and the mechanical strength may be lowered if it is less than 20% by weight. The lower surface also decreases the amount of heat storage and far-infrared rays, negative ions release effect of the addition of materials for the heat storage and functional provision relatively. Limestone is suitable for particles of 100 ~ 200 mesh size, and the addition amount is preferably 10-20% by weight, and less than 10% by weight may lower the mechanical strength. The amount of addition decreases, reducing heat storage, far infrared rays and anion release effects.

It is preferable to use calcium sulfo aluminate and natural anhydride gypsum, and calcium sulfo aluminate is pulverized with a roller mill so that specific surface area is 3,000 ~ 4,000c⒡⒭. desirable. When added in such a range, it is possible to form a stable hydrated mineral to not only provide excellent strength, but also to ensure physical stability since there is no dry shrinkage at all. On the other hand, if less than 5% by weight, the strength and dry shrinkage is weak, and if more than 10% by weight may lead to a price increase. Natural anhydrous gypsum is preferably pulverized to a specific surface area of 3,000 to 8,000 cm / g to add 5 to 10% by weight. Natural anhydrous gypsum is hydrated with the calcium sulfoaluminate to ethrinzite (3CaO · Al ₂ O ₃ · ₃ CaSO ₄ · 32H ₂ O) to further promote the production of high strength early, and serves to prevent shrinkage by the expansion pressure of the hydrate. In addition, dicalcium silicates in calcium sulfoaluminate minerals produce calcium silicate hydrate (hereinafter referred to as CSH) to maintain high strength even at long-term age. If natural anhydrous gypsum is less than 5% by weight, the early strength development performance is lowered, if it exceeds 10% by weight it is difficult to see a better effect than the addition within the above range.

As an additive, the fluidizing agent for the self-leveling function is preferably used by mixing one or more of melamine-based, naphthalene-based, and polycarboxylic acid-based compounds, preferably adding 0.1-5% by weight, and adding less than 0.1% by weight. If the magnetic level falls and exceeds 5% by weight, bridging may occur.

It is preferable to add 0.5 to 5% by weight of the antifoaming agent using the vegetable as a bubble removing agent, if less than 0.5% by weight, the defoaming effect is inferior and even if more than 5% by weight, the bubble removal effect is not enhanced.

The thickener which prevents material separation is preferably used by mixing one or more of ethyl cellulose or methyl cellulose and adding 0.1 to 5% by weight. When added less than 0.1% by weight, the material separation performance is lowered, and when it exceeds 5% by weight, the slump is lowered and the self leveling is lowered.

The functional mineral added to enhance the heat storage effect, far infrared rays and anion effects is selected from at least one of feldspar, biotite, biotite, elvan, tourmaline, ore, obsidian, illite, olivine and hornblende with a particle size of 325 mesh. It is preferable to add by adding, and it is preferable to add 10-20 weight%. If it is less than 10% by weight, the heat storage capacity, far infrared rays, and anion emission amount fall, and if it exceeds 20% by weight, the strength may be reduced.

The organic resin powder added for the purpose of improving mechanical strength and water resistance is preferably used by mixing one or more of an emulsifying type EVA, PVAC, and acrylic resin powder, and the amount of the additive is preferably added in an amount of 0.1 to 15 wt%. . If less than 0.1% by weight, it is difficult to see the effect of mechanical strength enhancement, and the addition of more than 15% by weight will increase the price.

With the composition of the heat storage block body 110, the functional mineral added in order to enhance the heat storage effect, far infrared rays, and anion effect is different from having a 325 mesh particle size added to the magnetic horizontal mortar. , Tourmaline, fluorite, obsidian, illite, olivine, hornblende is preferably used by mixing one or more than 1mm, 1 ~ 2mm, 2 ~ 4mm in the weight ratio of 30:30:40, respectively, It is useful for manufacturing a high specific heat storage block body 110 due to the closest filling. The addition amount is preferably 30 to 50% by weight based on the self-horizontal mortar composition, and less than 30% by weight may reduce the heat storage and far-infrared anion-releasing function, and if it exceeds 50% by weight, the mechanical strength of the structure itself may be lowered.

It is preferable to use mill scale, casting snow, etc. for the high specific gravity material. Mill scale is a layer of oxide generated on the surface of steel by oxygen in air when hot rolling steel. Here, casting snow (鑄 物 屑) refers to the processing waste that occurs during the cutting of the casting. Mill scale and foundry snow is preferably added 20 to 40% by weight relative to the self-horizontal mortar composition. If the added amount is less than 20% by weight, the heat storage effect may be reduced, and when the amount exceeds 40% by weight, the strength may be lowered.

The paraffin compound for manufacturing the heat storage pad 120 serves to further enhance the heat storage property of the heat storage block body 110 and n-tetradecane, n-pentadecane, n-hexadecane, n-heptadecane, n At least one or more selected from octadecane, n-nonadecane, n-icoic acid, n-docoic acid, n-tetracoic acid, n-hexacoic acid, n-octacoic acid, and n-triacontane It is preferable to use a gin mixture and have a melting temperature of 30 to 55 ° C., and the glass fiber sheet is a glass surface mat, yarn cross, chopped strand mat, or roving cross mat having a density of 100 to 200 g / m ² . It is preferable that the paraffin sheet 121 having the paraffin compound impregnated into the glass fiber sheet has a single thickness of about 1 mm, and preferably has a 3 to 10 layer structure. If the three-layer structure is less than the heat storage performance can be brought down, if the 10-layer structure exceeds the thickness of the heat storage block body 110 due to the thickness of the heat storage pad 120 can be relatively thin to reduce the mechanical strength. The thickness of the high thermal conductivity aluminum coated PET bag for sealing the paraffin sheet 121 is preferably 0.1 to 0.2 mm, and the hot plate press for the final thermocompression is preferably at a temperature of 45 to 50 ° C. and a press pressure of 3 to 5 Kg / cm ² .

Subsequently, the manufacturing method of the prefabricated underfloor panel by the Example of this invention is demonstrated. 2 is a flowchart illustrating a method of manufacturing a prefabricated underfloor panel according to an embodiment of the present invention.

As shown in FIG. 2, the method of manufacturing a prefabricated underfloor panel according to an exemplary embodiment of the present invention undergoes a mortar pouring and curing process for preparing a self-horizontal mortar composition and a heat storage pad, respectively, and combining them. In more detail, it consists of the following steps:

First, as the above-mentioned weight percent specific gravity by weight of the above-mentioned weight% specific gravity, organic mineral powder, thickener, high fluidizing agent, antifoaming agent, functional mineral having 325 mesh particle size, organic resin powder as portland cement, silica sand, limestone, calcium sulfoaluminate, natural anhydrous gypsum, and other additives. After the step of preparing a self-horizontal mortar composition by mixing.

Subsequently, functional minerals consisting of one or more mixtures of serpentine, biotite, biotite, elvan, tourmaline, fluorite, obsidian, illite, olivine and hornblende are divided into sizes of 1 mm or less, 1 to 2 mm, and 2 to 4 mm. After mixing at a weight ratio of 30:30:40, respectively, 30 to 50 wt% of the self-horizontal mortar composition is added and mixed.

Then, the final premixing step of mixing at least one of the mill scale or foundry snow by adding 20 to 40% by weight relative to the magnetic horizontal mortar composition.

Thereafter, 20-25 wt% of water is added to the premixed heat storage mortar composition using a 0.5-1.0 ㎥ volume rotating mixer at 50 to 150 rpm to prepare a high flow magnetic horizontal wet mortar. .

Thereafter, the paraffin compound is heated to a temperature of 50 to 55 ° C. to liquefy and the glass fiber sheet is impregnated to solidify at room temperature to prepare a paraffin sheet 121. Here, the paraffin sheet 121 is manufactured a plurality for the next step.

Thereafter, 3 to 10 sheets of paraffin sheets 121 prepared in the previous step were laminated and the sealed bags 122 made of a material having a relatively high thermal conductivity and capable of withstanding a plurality of laminated paraffin sheets 121 at a high temperature of 100 ° C. or higher. And vacuum packing.

Thereafter, the step of manufacturing a heat storage pad 120 having a multi-stage laminated structure by pressing the paraffin sheet in a vacuum-packed state at a temperature of 45 ~ 50 ℃ 10 seconds using a thermocompressor in the previous step.

Thereafter, the high-flow self-horizontal mortar composition is first poured into a silicon mold prepared by using a pump, and then the heat storage pad 120 prepared in the previous step is placed on the first-poured self-horizontal mortar composition and then placed on the secondary. Proceed with the pouring process.

Thereafter, the silicon mold containing the self-horizontal mortar composition and the heat storage pad 120 that proceeded up to the second casting is placed on a vibration table and processed for 10 to 20 seconds.

Thereafter, primary curing for 2 hours at room temperature 25 ℃, forced curing for 2 hours at 90% or more at 80 ℃ humidity, demolding, and proceeds to the third step of natural curing at room temperature in the third. Thereby, the prefabricated ondol floor panel according to the embodiment of the present invention excellent in far-infrared and anion-releasing effect and heat storage property is completed. The prefabricated ondol floor panel manufactured in this way may be inspected and shipped.

The result obtained through the above-described series of steps can be usefully used as a heat storage panel for a prefabricated underfloor having excellent heat storage function, far infrared ray, and anion release effect according to the application.

Subsequently, the experimental example, the comparative example, and the test result comparing these will be described.

Experimental Example 1

In Experimental Example 1, 45% by weight of Portland cement, 20% by weight of silica sand No. 7, 10% by weight of blue tin limestone, 10% by weight of calcium sulfoaluminate, 5% by weight of natural anhydrous gypsum, and 0.1% by weight of hydroxypropylmethylcellulose , 0.2% by weight of SP20 of Chemicon Co., Ltd., 1.0% by weight of P841 of Chemicon Co., Ltd., 3% by weight of AP221 of Yeongwoo Chemtech Co., Ltd. The self-horizontal mortar composition of was prepared.

After adding 1% or less, 1 ~ 2mm, 2 ~ 4mm size, the serpentine mixed to have a weight ratio of 30:30:40, respectively, to 30% by weight of the magnetic horizontal mortar composition and 20% by weight of the mill scale compared to the magnetic horizontal mortar composition Further addition made a secondary mortar composition.

Thereafter, 22 wt% of water was added to the entire secondary mortar composition, followed by mixing at 50 rpm for 10 minutes using a paddle mixer to prepare a wet mortar.

On the other hand, many paraffin sheets were manufactured by heating paraffin wax whose melting temperature is 52 degreeC, and melt | dissolving in a container, after impregnating and cooling a glass surface sheet of density 100g / m <^{2> in} the melted paraffin wax. Thus prepared 5 sheets of paraffin sheets were laminated in a 0.1mm thick aluminum coated PET bag and sealed by vacuum thermocompression bonding. Then, the heat storage pad was pressurized at a pressure of 3Kg / cm ² by maintaining a temperature of 45 ° C. Completed.

Subsequently, in the state in which 60% of the target pour amount of the target mortar was poured on the standardized silicone mold, the heat storage pad was placed thereon, and the remaining 40% of the wet mortar was poured on the vibration table, followed by vibration treatment for 10 seconds.

Thereafter, natural curing at room temperature for 2 hours, and then put in a separate curing room for 2 hours forced curing under conditions of temperature 80 ℃, humidity 95%, demolded and cured again at room temperature for 7 days to heat prefabricated heat storage panel Was completed.

Experimental Example 2

It was prepared in the same manner as in Experimental Example 1, but was replaced with biotite in place of the serpentine.

Experimental Example 3

It was prepared in the same manner as in Experimental Example 1, but was replaced by foundry snow instead of mill scale.

Experimental Example 4

Experimental Example 1 was prepared in the same manner, but was prepared by laminating paraffin sheets for heat storage pads in 8 layers.

Comparative Example

Fire-proof material used in general construction was prepared by pouring the same standard as the experimental example.

The heat storage panel manufactured by the above Experimental Example and the panel prepared by the Comparative Example were heated under the same conditions as those of ordinary ondol flooring to measure the time to rise to 80 ° C, and maintained at 80 ° C for 30 minutes, and then cooled. The heat storage effect was compared and measured by measuring the temperature at a predetermined time. Table 1 summarizes the results of the heat storage performance test of each Experimental Example and Comparative Example.

division Reach time up to 80 ℃ (min) Temperature by time after cooling for 30 minutes at 80 ℃ 30 minutes 60 minutes 90 minutes Experimental Example 1 12 67 59 48 Experimental Example 2 13 65 57 45 Experimental Example 3 12 67 58 48 Experimental Example 4 15 72 62 52 Comparative example 19 47 32 27

As a result, as shown in Table 1, Experimental Example 1, Experimental Example 2, and Experimental Example 3 showed similar results, but Experimental Example 4, in which the thickness of the heat storage pad was increased by increasing the number of laminations of the paraffin sheet, was performed. It can be seen that the heat storage effect is superior to that of the experimental example. This confirms that the heat storage pad effectively increases the overall heat storage performance together with the heat storage block body.

However, in Experimental Example 4, the temperature rise time is longer than that in the other Experimental Examples.

As can be seen from the above results, it was confirmed that the heat storage effect of the experimental example was incomparably superior to that of the comparative example, which means that the heat storage panel for prefabricated ondol floor including the heat storage panel can lead to high energy saving effect. It is.

Although the preferred embodiment of the present invention has been described above, the present invention may use various changes, modifications, and equivalents. It is clear that the present invention can be applied in the same manner by appropriately modifying the above embodiments. Accordingly, the above description does not limit the scope of the invention as defined by the limitations of the following claims.

110: heat storage block body 111: piping groove
112: tape seating groove 120: heat storage pad
121: paraffin sheet 122: sealing bag

Claims (12)

A heat storage pad for prefabricated ondol floors, which is embedded in the prefabricated ondol floors and accumulates heat,
A paraffin sheet solidified by impregnating a glass fiber sheet with a paraffin compound having a melting point in the temperature range of 30 to 55 ° C. and accumulating heat, and sealing to prevent leakage of the liquefied paraffin compound while sealing the paraffin sheet. Heat storage pad for prefabricated ondol floors, characterized in that the bag. The method of claim 1,
The paraffin sheet is a prefabricated thermal storage pad, characterized in that the multi-layer laminated. The method of claim 2,
The paraffin sheet is a prefabricated ondol floor heat storage pad, characterized in that formed by pressing in a heated state by a thermocompressor. The method of claim 2,
The sealing bag is a heat storage pad for prefabricated ondol floor, characterized in that the sheet made of a surface coated with aluminum on PET. The method of claim 1,
The paraffin compound is n-tetradecane, n-pentadecane, n-hexadecane, n-heptadecane, n-octadecane, n-nonadecane, n-icosane, n-docoic acid, n-tetracoic acid, n -A heat storage pad for prefabricated underfloor, comprising at least one selected from hexacoic acid, n-octacoic acid, and n-triacontane. The method of claim 1,
The glass fiber sheet is a heat storage pad for prefabricated ondol floor, characterized in that consisting of one selected from glass surface mat, yarn cross, chopped strand mat, roving cross mat having a density of 100 ~ 200g / m ² . A heat storage block body made of a mortar composition;
The heat storage panel for a prefabricated ondol floor comprising a; heat storage pad of any one of claims 1 to 6 embedded in the heat storage block body. The method of claim 7, wherein the heat storage block body,
30-50% by weight of cement;
18-30 weight% of siliceous sand;
10-20% by weight of limestone;
5-10% by weight of calcium sulfoaluminate as a shrinkage reducing agent;
5-10% by weight of natural anhydrite;
0.1 to 5% by weight of a thickener, 0.1 to 5% by weight of a high fluidizing agent, and 0.5 to 5% by weight of an antifoaming agent as an additive;
10-20% by weight of one or two or more mixtures of calcite, biotite, biotite, elvanite, tourmaline, fluorite, obsidian, illite, olivine and hornblende as functional minerals for improving heat storage performance and enhancing far infrared rays and anion functions; The heat storage panel for a prefabricated ondol floor, characterized in that the self-horizontal mortar composition is mixed. The method of claim 8,
In order to improve mechanical strength and water resistance to the self-horizontal mortar composition, an organic resin powder is further added by 0.1 to 15% by weight, and mixed, wherein the organic resin powder is one of EVA, PVAc, and acryl, which is manufactured in the form of an emulsifying powder resin. Or heat storage panel for prefabricated ondol floor, characterized in that consisting of two or more kinds of mixtures. The method of claim 8,
As the fluidizing agent of the additive contained in the self-horizontal mortar composition, at least one of melamine-based, naphthalene-based, and polycarboxylic acid-based compounds is used, and the thickener is selected from ethyl cellulose-based and methyl cellulose-based ones as a material separation inhibitor. The antifoaming agent is a heat storage panel for a prefabricated ondol floor, characterized in that a vegetable antifoaming agent was used. The method of claim 8,
In addition to the self-horizontal mortar composition, functional minerals composed of at least one of feldspar, biotite, biotite, elvanite, tourmaline, fluorite, obsidian, illite, olivine and hornblende have an average particle diameter of less than 1 mm, 1 to 2 mm, and 2 to 4 mm. After mixing by weight ratio of 30:30:40, respectively, divided by the size is added to 30 to 50% by weight compared to the self-horizontal mortar composition, at least one of the mill scale and foundry snow 20 to 40 compared to the self-horizontal mortar composition A heat storage panel for a prefabricated underfloor, characterized in that a heat storage block body is prepared from a secondary mortar composition to which a weight% is added. The method of claim 11,
The upper surface of the heat storage block body is formed with a pipe groove to allow the hot water pipe is seated, and a wider width than the pipe groove in the upper portion of the pipe groove is formed, the tape mounting groove,
And a thermally conductive metal tape attached to the tape seating groove to cover and protect the hot water pipe.

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