KR100420008B1 - Energy storage type of heat accumultating material for a boiler - Google Patents
Energy storage type of heat accumultating material for a boiler Download PDFInfo
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- KR100420008B1 KR100420008B1 KR10-2001-0016067A KR20010016067A KR100420008B1 KR 100420008 B1 KR100420008 B1 KR 100420008B1 KR 20010016067 A KR20010016067 A KR 20010016067A KR 100420008 B1 KR100420008 B1 KR 100420008B1
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/08—Materials not undergoing a change of physical state when used
- C09K5/14—Solid materials, e.g. powdery or granular
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D11/00—Central heating systems using heat accumulated in storage masses
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Abstract
본 발명은 보일러용 에너지 저장형 축열물질에 관한 것으로서, 이산화규소(SiO2), 알루미늄(Al), 칼슘(Ca), 마그네슘(Mg), 칼륨(K), 나트륨(Na) 및 철(Fe) 등의 산화물과 물을 혼합하여 무기물 슬러리화하고, 이를 보일러용 축열물질로 사용하여 보일러를 소형화 할 수 있게 하고 설비비 및 유지관리를 저감할 수 있는 축열물질을 제공코자 한 것이다.The present invention relates to an energy storage type heat storage material for a boiler, and includes silicon dioxide (SiO 2 ), aluminum (Al), calcium (Ca), magnesium (Mg), potassium (K), sodium (Na) and iron (Fe). It is intended to provide a heat storage material that can be made into a slurry slurry by mixing oxides and water, etc., and using this as a heat storage material for a boiler to reduce the size of the boiler and to reduce equipment cost and maintenance.
즉, 본 발명은 부피비로 분말 형태의 이산화규소(SiO2)37~42%와 알루미늄(Al)3.8~7.8%, 칼슘(Ca)0.5~1.1%, 마그네슘(Mg)0.5~1.1%, 칼륨(K) 0.5~1.1%, 나트륨(Na)1.7~2.3% 및 철(Fe)0.3~0.9% 등의 산화물로 구성된 혼합물에 물46~56%을 넣고 교반하여 무기물 슬러리화 함으로서 축열률이 우수한 축열물질을 제조하여 이를 보일러에 적용함으로서, 보일러를 소형화하여 설비비 및 유지관리비를 저감할 수 있게 한 것에 요지가 있다.That is, the present invention is in the form of powder by volume of silicon dioxide (SiO 2 ) 37-42%, aluminum (Al) 3.8-7.8%, calcium (Ca) 0.5-1.1%, magnesium (Mg) 0.5-1.1%, potassium ( K) Heat storage material with excellent heat storage rate by adding 46 ~ 56% of water to a mixture composed of oxides such as 0.5 ~ 1.1%, Na (1.7) ~ 2.3% and iron (Fe) 0.3 ~ 0.9% and stirring it into slurry By manufacturing and applying it to a boiler, there is a point that it is possible to reduce the cost of equipment and maintenance by miniaturizing the boiler.
Description
본 발명은 보일러용 축열물질로 사용할 수 있는 에너지 저장형 축열물질에 관한 것으로서, 보다 구체적으로는 이산화규소(SiO2)와 알루미늄(Al), 칼슘(Ca), 마그네슘(Mg), 칼륨(K), 나트륨(Na) 및 철(Fe) 등의 산화물로 구성된 혼합물을 물과 혼합하여 무기물 슬러리화하고, 이를 보일러용 축열물질로 사용하여 보일러를 소형화 할 수 있게 하고 설비비 및 유지관리를 저감할 수 있는 축열물질을 제공코자 한 것이다.The present invention relates to an energy storage type heat storage material that can be used as a heat storage material for a boiler, and more specifically, silicon dioxide (SiO 2 ), aluminum (Al), calcium (Ca), magnesium (Mg), and potassium (K). , Mixture of oxides such as sodium (Na) and iron (Fe) with water can be mixed with water to make inorganic slurry, and it can be used as a heat storage material for boiler to make boilers smaller and to reduce equipment cost and maintenance. To provide a heat storage material.
통상 전기보일러는 오후 10시부터 익일 오전 8시까지의 시간대에 공급되는염가의 전기에너지를 이용하여 열을 저장하여 두었다가 주간 시간대에 저장된 열로 난방 등을 행할 수 있도록 구성되어 있다. 이때 심야 시간대에 많은 열을 효과적으로 저장할 수 있는 대책이 가장 우선적으로 수립되어야 하고, 다음으로 저장된 열의 사용 시에 필요한 만큼의 열량을 발생하면서도 비축된 열의 소모가 가급적 적어야 한다. 따라서 전기보일러에서는 효과적인 열 저장용 축열물질의 개발이 극히 중요하며, 이를 가장 효과적으로 이용할 수 있는 보일러 시스템의 설계가 수반되어야 한다.Normally, the electric boiler is configured to store heat using cheap electric energy supplied from 10 pm to 8 am the next day, and to heat the stored heat during the daytime. In this case, measures to effectively store a large amount of heat in the late night hours should be established first, and the amount of heat stored as much as necessary for the next use of the stored heat should be consumed as little as possible. Therefore, the development of effective heat storage regenerative material in the electric boiler is extremely important, and the design of the boiler system that can use it most effectively must be accompanied.
현재까지 극히 일부에서 연구 중에 있는 축열물질은 유해성 화학물질의 사용으로 인해 그 효과가 의문시되고 있고, 실제 허가 및 상업적 적용이 보류되고 있는 실정이며, 그 외에 보편적인 심야전기 보일러는 단순히 심야시간대의 전기를 이용하여 온수저장탱크내의 많은 양의 용수를 가열하였다가 비심야 시간대에 이를 사용하는 이상의 별다른 개발이 수반되지 않고 있다.To date, very few of the regenerative materials under investigation are questioned for their effectiveness due to the use of hazardous chemicals, and actual permits and commercial applications have been withheld. There is no significant development beyond heating a large amount of water in a hot water storage tank and using it during off-night hours.
따라서 난방장치는 그 규모가 대형화 될 수밖에 없고, 그 만큼 시설이나 설치비 및 운전비도 증가할 수 밖에 없으며, 특히 에너지원으로 사용되는 유류나 가스 등 부존자원이 없는 우리나라에서는 에너지 절약형 보일러의 개발이 절실하였던 것이다.Therefore, the heating system has to be enlarged in size, and the facility, installation cost, and operation cost also have to increase, and in particular, the development of energy-saving boilers is urgently needed in Korea, where there are no existing resources such as oil and gas used as energy sources. will be.
이에 본 발명에서는 상술한 바와 같은 기존의 보일러가 갖는 난제를 해결할 수 있는 보일러용 열 저장형의 무해성 축열물질을 물리 화학적인 방법으로 제조하여, 축열 효율을 향상시켜 보일러를 소형화 할 수 있도록 함으로써 시설비 및 유지관리비를 저감할 수 있도록 한 축열물질을 제조함에 본 발명의 기술적 과제를 두고 본 발명을 완성한 것이다.Therefore, in the present invention, by manufacturing a harmless heat storage material of the boiler heat storage type that can solve the problems of the existing boiler as described above by a physicochemical method, by improving the heat storage efficiency to make the boiler downsized, And to complete the present invention with the technical problem of the present invention to produce a heat storage material to reduce the maintenance cost.
도 1은 본 발명의 축열물질에 대한 흡열상태를 보이기 위한 그래프1 is a graph for showing an endothermic state for the heat storage material of the present invention
본 발명은 무해성 축열물질을 제조코자 한 것이다.The present invention is to produce a harmless heat storage material.
즉, 본 발명에서 제공코자 하는 축열물질은 부피비로 분말 형태의 이산화규소(SiO2) 37~42%와, 알루미늄(Al) 3.8~7.8%, 칼슘(Ca) 0.5~1.1%, 마그네슘(Mg) 0.5~1.1%, 칼륨(K) 0.5~1.1%, 나트륨(Na) 1.7~2.3% 및 철(Fe) 0.3~0.9% 등의 산화물로 구성된 혼합물을 고르게 혼합한 다음 이에 물 46~56%을 첨가하여 교반하는 공정을 통하여 무기물로 구성의 슬러리화 된 축열물질을 얻을 수 있는 것이다.That is, the heat storage material to be provided in the present invention is 37 to 42% in powder form of silicon dioxide (SiO 2 ), aluminum (Al) 3.8 to 7.8%, calcium (Ca) 0.5 to 1.1%, magnesium (Mg) A mixture of oxides such as 0.5 to 1.1%, 0.5 to 1.1% of potassium (K), 1.7 to 2.3% of sodium (Na), and 0.3 to 0.9% of iron (Fe) is evenly mixed, and then 46 to 56% of water is added thereto. Through the process of stirring to obtain a slurry heat storage material consisting of an inorganic material.
이상과 같이 간단한 공정을 통하여 얻을 수 있는 본 발명의 축열물질은 화학적으로 무해성이면서, 물과 혼합하였을 때 이산화규소를 포함하는 각 무기물의 격자 내부 및 입자간극에 물을 보유하는 성질이 있고, 외부에서 열이 공급되면 각 구성물질자체 뿐 아니라 보유된 수분의 온도 상승으로 인해 흡열 및 축열 능력에 따른 잠열효과가 우수하게 되는 것이다.The heat storage material of the present invention, which can be obtained through a simple process as described above, is chemically harmless and retains water in the intergranular and particle gaps of each inorganic material containing silicon dioxide when mixed with water. When the heat is supplied from, the latent heat effect according to the endothermic and heat storage capacity is excellent due to the temperature rise of each component as well as the retained moisture.
실험예Experimental Example
상기한 본 발명으로 제조되는 10℃의 축열물질 20.60mg을 250℃로 가열한 바, 도 1에 도시된 바와 같이 외부열의 공급에 따라 약 50℃ 근처에서 1차의 흡열을 일으키고, 87℃ 이상의 온도범위에서 2차로 흡열을 일으킴을 확인할 수 있었고,흡열 및 축열 능력에 따른 잠열효과가 우수하게 되는 것이다.20.60mg of the 10 ° C. heat storage material prepared according to the present invention was heated to 250 ° C., as shown in FIG. 1, the first endotherm occurred at about 50 ° C. according to the supply of external heat, and the temperature of 87 ° C. or higher. It could be confirmed that the endothermic causes secondary in the range, the latent heat effect according to the endothermic and heat storage ability is excellent.
실시예 1.Example 1.
보일러 내에 가열되는 물의 양이 195ℓ가 되도록 파이프를 설치하여 물을 채우고, 파이프와 외벽간 체적이 340ℓ가 되도록 축열부를 만들어 이 부분에 본 발명 축열물질을 충전하였다.A pipe was installed to fill the water so that the amount of water heated in the boiler was 195 L, and a heat storage part was made to have a volume of 340 L between the pipe and the outer wall, thereby filling the heat storage material of the present invention.
상기 축열물질을 10KW 용량의 심야전기를 사용하여 5시간 가동하여 가열된 물의 온도가 90℃가 되도록 한 다음 전원을 차단하고, 분당 16ℓ의 속도로 6℃의 냉수를 외부로부터 연속적으로 시수하여, 축열부에서 열을 받아 온수로 배출시키며 5분 간격으로 배출온수의 온도를 측정하여 열량을 계산한 다음 기존의 일반 심야 전기용 온수 보일러에 의한 열량과 비교하여 효율을 대비하였다.The heat storage material was operated for 5 hours using a 10 KW late night electric power so that the temperature of the heated water became 90 ° C., and then the power was cut off. The heat was collected from the department and discharged into hot water, and the calorie was calculated by measuring the temperature of the discharged hot water at 5 minute intervals, and then compared with the heat generated by a conventional midnight electric hot water boiler, the efficiency was compared.
최초 측정시 물의 온도는 90℃였고, 2시간 15분 동안 28회에 걸쳐 측정한 최종 물의 온도는 24℃였다.The temperature of the water at the time of the initial measurement was 90 ° C., and the temperature of the final water measured at 28 times over 2 hours 15 minutes was 24 ° C.
이 시간동안 배출된 온수의 양은 2,200ℓ였으므로 열량은 다음과 같이 계산된다.The amount of hot water discharged during this time was 2,200ℓ, so the calorific value is calculated as
시수되는 물의 유입온도 : 6℃Inlet temperature of fresh water: 6 ℃
배출되는 온수의 평균온도 : ΣTn/ n = 1,022℃/28 = 36.5℃ ≒ 37℃Average temperature of hot water discharged: ΣT n / n = 1,022 ℃ / 28 = 36.5 ℃ ≒ 37 ℃
가열되는 물의 평균 온도차이 △T = 37 - 6 = 31℃Mean temperature difference of water to be heated ΔT = 37-6 = 31 ℃
발생 총 열량 Q = 물의 양 ×비열 ×온도차이Total heat generated Q = amount of water × specific heat × temperature difference
= 2200 × 1 × 31 = 68,200 Kcal= 2200 × 1 × 31 = 68,200 Kcal
심야전기 보일러 기준열량은 270Kcal/평이므로 본 열량에 의한 난방면적은 68,200/270 = 252.6평이고, 또 난방에 필요한 비심야 시간량은 14시간이므로 본 열량에 의한 시간당 난방면적은 252.6/14 = 18평에 해당한다.Since the standard heat capacity of the midnight electric boiler is 270 Kcal / pyeong, the heating area by this heat amount is 68,200 / 270 = 252.6 pyeong, and the non-night time required for heating is 14 hours, so the heating area per hour by this heat amount is 252.6 / 14 = 18 Corresponds to the rating.
따라서 일반 심야전기용 온수 보일러에 의한 열량으로는 평균 6평을 난방할 수 있으므로 이에 대비하여 본 발명에 의한 축열물질을 사용한 경우는 약 3배의 효율이 가능함을 알 수 있었다.Therefore, the average amount of heat by the hot water boiler for a midnight electricity can heat 6 pyeong on average. In contrast, when the heat storage material according to the present invention was used, it was found that about 3 times the efficiency was possible.
실시 예 2.Example 2.
실시 예 1.에서와 동일한 장치를 사용하여 시행한 실시 예 2로서 다음과 같다.Example 2 Example 2 was carried out using the same apparatus as in Example 1.
최초 측정시 물의 온도는 95℃였고, 2시간 40분 동안 34회에 걸쳐 측정한 최종 물의 온도는 21℃였다. 이 시간동안 배출된 온수의 양은 1,600ℓ였으므로 열량은 다음과 같이 계산된다.The temperature of the water at the time of the initial measurement was 95 ° C., and the temperature of the final water measured at 34 times over 2 hours 40 minutes was 21 ° C. Since the amount of hot water discharged during this time was 1,600 liters, the calorific value is calculated as follows.
시수되는 물의 유입온도 : 4℃Inlet temperature of fresh water: 4 ℃
배출되는 온수의 평균온도 : ΣTn/ n = 1,530℃/34 ≒ 45℃Average temperature of hot water discharged: ΣT n / n = 1,530 ℃ / 34 ≒ 45 ℃
가열되는 물의 평균 온도차이 △T = 45 - 4 = 41℃Average temperature difference of water to be heated ΔT = 45-4 = 41 ℃
발생 총 열량 Q = 물의 양 ×비열 ×온도차이Total heat generated Q = amount of water × specific heat × temperature difference
= 1,600 × 1 × 41 = 65,600 Kcal= 1,600 × 1 × 41 = 65,600 Kcal
심야전기 보일러 기준열량은 270Kcal/평이므로 본 열량에 의한 난방면적은 65,600/270 = 243평이고, 또 난방에 필요한 비심야 시간량은 14시간이므로 본 열량에 의한 시간당 난방면적은 243/14 = 17.4평에 해당한다.Since the standard heat capacity of the midnight electric boiler is 270 Kcal / pyeong, the heating area by this heat amount is 65,600 / 270 = 243 pyeong, and the non-night time required for heating is 14 hours, so the heating area per hour by this heat amount is 243/14 = 17.4 Corresponds to the rating.
따라서 일반 심야전기용 온수 보일러에 의한 열량으로는 평균 6평을 난방할 수 있으므로 이에 대비하여 본 발명에 의한 축열물질을 사용한 경우도 약 3배의 효율이 가능함을 알 수 있었다.Therefore, the average amount of heat by a hot water boiler for a midnight electricity can heat 6 pyeong on average, and in contrast, it can be seen that the efficiency of about 3 times is possible even when the heat storage material according to the present invention is used.
본 발명에서는 보일러용 축열물질에 국한하여 설명하였으나, 이를 다양한 산업분야에 적용하여 축열하는 용도로 사용할 수 있음은 당연한 것이다.In the present invention, but described only for the heat storage material for the boiler, it is natural that it can be used for heat storage by applying this to various industrial fields.
이상에서 살펴본 바와 같이 본 발명은 이산화규소(SiO2) 37~42%와 알루미늄(Al) 3.8~7.8%, 칼슘(Ca) 0.5~1.1%, 마그네슘(Mg) 0.5~1.1%, 칼륨(K) 0.5~1.1%, 나트륨(Na) 1.7~2.3% 및 철(Fe) 0.3~0.9% 등의 산화물로 구성된 혼합물에 물 46~56%을 첨가하여 교반하는 간단한 공정으로 무기물 슬러리로 되는 축열물질을 제조할 수 있는 것으로, 본 발명을 보일러에 적용할 경우 축열율이 우수하므로 보일러를 소형화 할 수 있음은 물론이고 이로 인하여 설비비나 운전비용 등을 저감할 수 있는 등의 효과가 기대되며 본 발명에서 얻어지는 축열물질을 다양한 산업분야에 적용하여 사용할 경우 기대 이상의 에너지 절약효과를 득할 수 있을 것이다.As described above, the present invention provides 37 to 42% of silicon dioxide (SiO 2 ) and 3.8 to 7.8% of aluminum (Al), 0.5 to 1.1% of calcium (Ca), 0.5 to 1.1% of magnesium (Mg), and potassium (K). A heat storage material is prepared as an inorganic slurry by a simple process of adding 46-56% of water to a mixture of oxides such as 0.5 to 1.1%, 1.7 to 2.3% of sodium (Na), and 0.3 to 0.9% of iron (Fe). If the present invention is applied to the boiler, the heat storage rate is excellent, so that the boiler can be miniaturized, and thus, the effect of reducing the equipment cost and the operating cost is expected, and the heat storage obtained in the present invention. If the material is applied to various industries, energy savings will be more than expected.
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| KR10-2001-0016067A KR100420008B1 (en) | 2001-03-27 | 2001-03-27 | Energy storage type of heat accumultating material for a boiler |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100683864B1 (en) * | 2006-04-12 | 2007-02-22 | 김재복 | Massager Bed |
| KR101589417B1 (en) | 2015-09-08 | 2016-01-27 | 백진순 | Hot water heating systems using thermal oil as heat accumulation substance |
| KR20170029959A (en) | 2015-09-08 | 2017-03-16 | 백진순 | Combined hot water heating systems using thermal oil as heat accumulation substance |
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| JPS5922985A (en) * | 1982-07-30 | 1984-02-06 | Hitachi Ltd | Heat-accumulating material |
| KR920702712A (en) * | 1989-06-23 | 1992-10-06 | 원본미기재 | Calcium Chloride Hexahydrate Preparation Used for Low Temperature Heat Storage |
| US5423996A (en) * | 1994-04-15 | 1995-06-13 | Phase Change Laboratories, Inc. | Compositions for thermal energy storage or thermal energy generation |
| JPH10147774A (en) * | 1996-11-20 | 1998-06-02 | Kanto Denka Kogyo Co Ltd | Heat storage material composition and its production |
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| US4006734A (en) * | 1974-11-26 | 1977-02-08 | British Steel Corporation | Storage heater bricks |
| JPS5710675A (en) * | 1980-06-23 | 1982-01-20 | Daikin Ind Ltd | Heat-storing material composition |
| JPS5922985A (en) * | 1982-07-30 | 1984-02-06 | Hitachi Ltd | Heat-accumulating material |
| KR920702712A (en) * | 1989-06-23 | 1992-10-06 | 원본미기재 | Calcium Chloride Hexahydrate Preparation Used for Low Temperature Heat Storage |
| US5423996A (en) * | 1994-04-15 | 1995-06-13 | Phase Change Laboratories, Inc. | Compositions for thermal energy storage or thermal energy generation |
| JPH10147774A (en) * | 1996-11-20 | 1998-06-02 | Kanto Denka Kogyo Co Ltd | Heat storage material composition and its production |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100683864B1 (en) * | 2006-04-12 | 2007-02-22 | 김재복 | Massager Bed |
| KR101589417B1 (en) | 2015-09-08 | 2016-01-27 | 백진순 | Hot water heating systems using thermal oil as heat accumulation substance |
| KR20170029959A (en) | 2015-09-08 | 2017-03-16 | 백진순 | Combined hot water heating systems using thermal oil as heat accumulation substance |
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| KR20020076074A (en) | 2002-10-09 |
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