WO2024135995A1 - Purificateur d'eau qui utilise la chaleur perdue provenant d'un élément thermoélectrique - Google Patents

Purificateur d'eau qui utilise la chaleur perdue provenant d'un élément thermoélectrique Download PDF

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Publication number
WO2024135995A1
WO2024135995A1 PCT/KR2023/013022 KR2023013022W WO2024135995A1 WO 2024135995 A1 WO2024135995 A1 WO 2024135995A1 KR 2023013022 W KR2023013022 W KR 2023013022W WO 2024135995 A1 WO2024135995 A1 WO 2024135995A1
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WIPO (PCT)
Prior art keywords
module
heat
thermoelectric element
preheating
water
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PCT/KR2023/013022
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English (en)
Korean (ko)
Inventor
예병효
박성민
이종환
김현구
정희도
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코웨이 주식회사
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Publication of WO2024135995A1 publication Critical patent/WO2024135995A1/fr

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  • the present invention relates to a water purifier that uses the waste heat of a thermoelectric element, and more specifically, to a water purifier that uses the waste heat of a thermoelectric element that uses energy more efficiently and improves cooling or heating efficiency.
  • these water purifiers include a direct connection type that connects directly to the faucet, and a storage type that puts water in a container and passes it through a filter.
  • a direct connection type that connects directly to the faucet
  • a storage type that puts water in a container and passes it through a filter.
  • the water purifier includes a filter that filters raw water, a purified water tank that stores the purified water filtered by the filter, guides the raw water to the filter, guides the purified water filtered by the filter to the purified water tank, and supplies the purified water in the purified water tank to the user's request. It has components such as a flow path that guides it to the discharge port when it is blown out.
  • These direct water purifiers employ instantaneous hot water heaters to instantaneously heat purified water, and these instantaneous hot water heaters can generate hot water corresponding to the target temperature in a short period of time due to the small flow rate of purified water accommodated therein.
  • a cooling module is provided in a direct water purifier to provide cold water.
  • Conventional water purifiers waste energy by dissipating heat generated when cooling purified water, and at the same time rely only on an instantaneous hot water heater to heat hot water. Because the arrival time was long, the waiting time for users to dispense hot water increased, and the flow rate of hot water provided was limited, so when users wanted to obtain a large amount of hot water, their needs could not be met, leading to complaints. It is being raised.
  • Korean Patent Publication No. 10-2015-0094360A is an invention regarding a water treatment device equipped with a cold water generator and a hot water generator. Purified water filtered while passing through the filter is heated through the hot water generator, cooled through the cold water generator, and then passed through the extraction member. A structure provided to users is disclosed.
  • the cold water generator only cools, and the hot water generator only heats, so the heat absorbed by the cold water generator when cooling purified water is not used elsewhere and is released as is.
  • the hot water generator only hot water is used. Since it depends on the calorific value of the generator, it takes time to heat up to the target hot water generation time, and there is a limit to generating a large amount of hot water, which is not enough to resolve user complaints.
  • Korean Patent Publication No. 10-127195B is an invention regarding a water purifier using a thermoelectric element, in which a preheating module is provided on the heating side of the first thermoelectric semiconductor that cools the cold water circulation module, and the water preheated in the preheating module is supplied to the hot water circulation module.
  • the structure is disclosed.
  • the first thermoelectric semiconductor cools the purified water
  • a preheating module is provided on the heating side where the heat generated by the cooling of the purified water is radiated, so that the purified water is heated through the heat radiated to the first thermoelectric semiconductor to preheat the purified water. and supplies preheated water to the hot water circulation module.
  • Korean registered patent KR10-1278420B is an invention regarding a water purifier using a thermoelectric element, and discloses a cooling circulation module connected to the cooling pad of the cold/hot module and a heating circulation module connected to the heating pad of the cold/hot module, wherein the cold/hot module absorbs heat on one side and heat absorption on the other side.
  • a structure is disclosed in which a cooling circulation module is provided on the cooling pad on the heat-absorbing side to dissipate heat, and a heating circulation module is provided on the heating pad on the heat-generating side, so that one cold and hot module is responsible for both cold and hot water.
  • it is a structure that is responsible for both cooling of cold water and heating of hot water with one cold and hot module. It is a structure in which waste heat generated from the cold and hot module is used as a heating source for hot water. However, the cold and hot modules are controlled by the cold and hot modules. There was no detailed description of how the heated water was circulated.
  • the water purifier using the waste heat of the thermoelectric element of the present invention is intended to solve the above problems.
  • the water purifier using the waste heat of the thermoelectric element according to the embodiment of the present invention utilizes the waste heat generated when cooling purified water to achieve energy efficiency.
  • the task is to provide a water purifier with higher .
  • the task of providing a water purifier that uses waste heat from a thermoelectric element is to provide a water purifier that can provide a greater flow rate of hot water in a faster time.
  • the object of the present invention is to provide a water purifier that uses the waste heat of another thermoelectric element to increase energy efficiency by more effectively utilizing the waste heat generated when cooling purified water as a heating source for hot water.
  • thermoelectric element having one side forming a cooling surface and the other side forming a heat dissipation surface; a cold water module through which filtered purified water flows and which cools the purified water by contacting the cooling surface of the thermoelectric element; a heat dissipation module that contacts the heat dissipation surface and cools the heat dissipation surface by dissipating heat radiated from the thermoelectric element into the atmosphere; a preheating module that temporarily stores filtered purified water and heats the stored purified water by contacting the heat dissipation module, which is heated by waste heat emitted from the heat dissipation surface of the thermoelectric element; an instantaneous hot water module that receives heated purified water from the preheating module and heats the purified water preheated by the preheating module; a circulation pump that transfers purified water from the preheating module to the instantaneous hot water module or circulates purified water from the instantaneous hot water
  • the heat dissipation module includes a heat conduction block in contact with the heat dissipation surface of the thermoelectric element;
  • a heat pipe that contacts at least a portion of the heat-conducting block and absorbs heat from the heat-conducting block; It may include a cooling fan that cools the heat pipe.
  • the preheating module includes an inlet flow path through which purified water flows; a preheating unit that forms a preheating space in which purified water flowing from the inlet flow path is temporarily stored, and contacts the heat conduction block to transfer heat from the heat conduction block to preheat the purified water stored in the preheating space; It may include an outflow passage that guides purified water from the preheating unit to the instantaneous hot water module.
  • the control unit includes a temperature sensor that measures the temperature of purified water in the preheating module, and is provided to detect whether the thermoelectric element and the instantaneous hot water module are operating, and determine whether the thermoelectric element and the instantaneous hot water module are operating, and With the temperature measured by the temperature sensor, the rotation speed of the cooling fan of the heat dissipation module and whether the circulation pump operates can be controlled.
  • control unit may control the cooling fan to slow down or stop the rotation of the cooling fan.
  • control unit may operate the circulation pump to control the water preheated in the preheating module to be supplied to the instantaneous hot water module.
  • control unit may rotate or increase the rotation speed of the cooling fan and circulate purified water in the preheating module using the circulation pump.
  • the preheating unit may be a preheating tank provided to form the preheating space.
  • the preheating unit has one end connected to the inflow passage and the other end connected to the outflow passage, and is bent a plurality of times between the inflow passage and the outflow passage to form a preheating space in which purified water is preheated by contacting the heat conduction block. It may be a preheating pipe.
  • the water purifier using the waste heat of the thermoelectric element according to the present invention does not dissipate the waste heat generated from the thermoelectric element that cools the purified water as is, but utilizes it as a heating source to preheat hot water, thereby efficiently using wasted energy. There is a possible effect.
  • the water purifier using the waste heat of the thermoelectric element preheats the hot water with the waste heat generated when cooling the purified water, so the time to heat the hot water to the target temperature is shortened, so the user has to wait when dispensing hot water. This has the effect of improving user satisfaction by shortening the processing time.
  • a water purifier that uses the waste heat of a thermoelectric element preheats hot water using the waste heat generated when cooling purified water, so it can increase the flow rate of hot water, so even when the user wants a large amount of hot water, it can be consumed quickly. Since hot water can be provided, it has the effect of improving user satisfaction.
  • the water purifier using the waste heat of the thermoelectric element controls the rotation presence and rotation speed of the cooling fan that cools the thermoelectric element according to the temperature of the hot water to be preheated, so that the waste heat of the thermoelectric element is more effective in preheating the hot water. It has the effect of allowing energy to be used more efficiently by focusing it.
  • the water purifier using the waste heat of the thermoelectric element supplies the preheated hot water to the instantaneous hot water module when the temperature of the hot water to be preheated reaches the set temperature, and circulates the purified water in the preheating module to create new water.
  • the flow rate of hot water provided from the hot water module can be further increased by increasing the amount of preheated hot water without deteriorating the cooling performance of the cold water module.
  • Figure 1 is a diagram briefly illustrating the flow of internal purified water when the temperature of hot water in the preheating module of a water purifier using waste heat from a thermoelectric element according to an embodiment of the present invention is below the target temperature.
  • Figure 2 is a diagram showing whether the cooling fan operates and the flow of heat radiated from the thermoelectric element when the temperature of the hot water in the preheating module of the water purifier using waste heat from the thermoelectric element according to an embodiment of the present invention is below the target temperature.
  • Figure 3 is a diagram briefly illustrating the flow of internal purified water when hot water in the preheating module of a water purifier using waste heat from a thermoelectric element according to an embodiment of the present invention reaches the target temperature.
  • Figure 4 is a diagram briefly showing the flow of internal purified water when cooling purified water in the cold water module of a water purifier using waste heat from a thermoelectric element according to an embodiment of the present invention.
  • Figure 5 is a diagram showing whether the cooling fan operates and the flow of heat radiated from the thermoelectric element when cooling purified water in the cold water module of the water purifier using the waste heat of the thermoelectric element according to an embodiment of the present invention.
  • Figure 6 is a diagram showing an example of a preheating module of a water purifier using waste heat from a thermoelectric element according to an embodiment of the present invention.
  • Figure 7 is a diagram showing another example of a preheating module of a water purifier using waste heat from a thermoelectric element according to an embodiment of the present invention.
  • a component being “in front,” “rear,” “above,” or “below” another component means that it is in direct contact with the other component, unless there are special circumstances. This includes not only those placed at the “bottom” but also cases where another component is placed in the middle.
  • the fact that a component is "connected" to another component includes not only being directly connected to each other, but also indirectly connected to each other, unless there are special circumstances.
  • thermoelectric element 120 a water purifier 100 using waste heat of the thermoelectric element 120 according to an embodiment of the present invention will be described with reference to the drawings.
  • the water purifier 100 using the waste heat of the thermoelectric element 120 includes a thermoelectric element 120, a cold water module 130, a heat dissipation module 140, a preheating module 150, and an instantaneous hot water module 160. ), a circulation pump 170, and a control unit 180.
  • the thermoelectric element 120 is a device that generates a temperature difference by receiving power, and may be, for example, a Peltier device.
  • thermoelectric element 120 When power is applied to the thermoelectric element 120, a cooling surface 122 that is cooled on one side may be formed, and a heat dissipation surface 124 that generates heat may be formed on the other side.
  • heat is absorbed from one side, and the absorbed heat is dissipated from the other side.
  • the cold water module 130 receives purified water filtered by the filter 110, and is provided to contact the cooling surface 122 of the thermoelectric element 120 to cool the purified water to become cold water.
  • the cold water module 130 cools purified water by contacting one side, which is the cooling surface 122, of the thermoelectric element 120.
  • the thermoelectric element 120 may absorb heat from the cooling surface 122, cool the purified water, and then release the absorbed heat through the heat dissipation surface 124.
  • the heat dissipation module 140 may cool the thermoelectric element 120 by contacting the heat dissipation surface 124 and dissipating heat from the thermoelectric element 120 into the atmosphere.
  • thermoelectric element 120 the heat radiated from the thermoelectric element 120 is referred to as waste heat.
  • the preheating module 150 temporarily stores purified water filtered by the filter 110, and heats the stored purified water by contacting the heat dissipating module 140, which is heated by waste heat emitted from the heat dissipating surface of the thermoelectric element 120. It may be provided to do so.
  • the instantaneous hot water module 160 receives purified water heated by the preheating module 150, and may be provided to heat the purified water preheated by the preheating module 150.
  • the circulation pump 170 can transfer purified water heated in the preheating module 150 to the instantaneous hot water module 160, or circulate purified water from the instantaneous hot water module 160 to the preheating module 150. there is.
  • a flow path 102 that guides raw water to the filter 110 a flow path 104 that guides purified water filtered by the filter 110 to the cold water module 130, and purified water filtered by the filter 110.
  • a flow path 106 that guides the instantaneous hot water module 160 to the instantaneous hot water module 160 circulates the purified water of the instantaneous hot water module 160 to the preheating module 150, or circulates the purified water of the preheating module 150 to the instantaneous hot water module.
  • a flow path 108 that circulates to 160 may be provided.
  • a flow path 192 that guides the purified water of the cold water module 130 to the cold water extraction cock and a flow path 194 that guides the purified water of the instantaneous hot water module 160 to the hot water extraction cock may be provided.
  • the control unit 180 operates the circulation pump 170, the instantaneous hot water module 160, and the thermoelectric element 120 according to the operation of the cold water module 130 and the temperature of the purified water in the preheating module 150.
  • the amount of heat transferred to the preheating module 150 among the heat radiated from the heat dissipation module 140 can be controlled as needed.
  • the heat dissipation module 140 may include a heat conduction block 142, a heat pipe, and a cooling fan 148.
  • the heat conduction block 142 is provided to contact the heat dissipation surface 124 of the thermoelectric element 120 and may be made of an alloy material such as copper or aluminum with excellent heat conductivity.
  • one side of the heat conduction block 142 is provided on the heat dissipation surface of the thermoelectric element 120, and the other side may be in contact with the preheating unit 154 of the preheating module 150.
  • the heat pipe may be provided to contact the heat conduction block 142 and absorb heat from the heat conduction block 142. Additionally, the heat pipe 144 may be in direct contact with the preheating module 150 in some sections as needed.
  • the heat pipe is a component that moves heat while circulating on its own through a phase change of absorbed heat.
  • the heat pipe extends upward from the heat conduction block 142, and a cooling fan 148 is provided on the extended upper side. It can be.
  • the cooling fan 148 is provided to adjust whether or not it rotates and the number of rotations according to the control of the control unit 180, and may be provided to cool the heat pipe.
  • a heat dissipation fin 146 is installed at the point where the cooling fan 148 of the heat pipe is installed to maximize the heat dissipation area, thereby allowing the heat pipe to cool more smoothly.
  • the preheating module 150 may include an inflow passage 152, a preheating unit 154, and an outlet passage 158.
  • the inflow passage 152 forms a passage through which purified water flows
  • the preheating unit 154 forms a preheating space in which purified water flowing from the inflow passage 152 is temporarily stored, and the heat conduction block 142 Alternatively, it may be provided to contact the heat pipe and transfer heat from the heat conduction block 142 to preheat the purified water stored in the preheating space.
  • the outflow passage 158 may guide purified water from the preheating unit 154 to the instantaneous hot water module 160.
  • the preheating unit 154 stores inflowed purified water and has a larger cross-sectional area than the inlet flow path 152 and the outlet flow path 158, so it is a tank-shaped preheating tank 155 where the inflowed purified water stays.
  • the preheating portion 154 may be formed continuously with the inflow passage 152 and the outflow passage 158, and may be formed continuously with the heat conduction block 142 or the heat. It may be a preheating pipe 156 that is bent multiple times in an area in contact with the pipe to increase the area in contact with the heat pipe 144 or the heat conduction block 142.
  • purified water is supplied to the preheating unit 154 through the inlet flow path 152, is preheated in the preheating part 154 by waste heat of the thermoelectric element 120, and is supplied through the outlet flow path 158. It can be discharged to the instantaneous hot water module 160.
  • control unit 180 includes a temperature sensor 182 that measures the temperature of purified water in the preheating module 150, detects whether the thermoelectric element 120 and the instantaneous hot water module 160 are operating, and It may be provided to control the operation of the cooling fan 148 and the circulation pump 170.
  • control unit 180 determines whether the thermoelectric element 120 and the instantaneous hot water module 160 are operating and the temperature measured by the temperature sensor 182, and the cooling fan (The amount of heat transferred to the preheating module 150 among the heat radiated from the heat dissipation module 140 can be adjusted by controlling the number of rotations 148 and whether the circulation pump 170 operates.
  • control unit 180 may have a target preheating temperature set for the preheating module 150. As shown in FIGS. 1 and 2, the preheating module 150 measured by the temperature sensor 182 ), the amount of heat radiated to the atmosphere among the waste heat radiated from the heat dissipation surface of the thermoelectric element 120 decreases and the amount of heat transferred to the preheating module 150 increases, The control unit 180 may reduce the rotation speed of the cooling fan 148 or stop the rotation of the cooling fan 148.
  • the cooling fan 148 when the cooling fan 148 is stopped or the rotation speed of the cooling fan 148 is reduced, the heat radiated to the atmosphere by the cooling fan 148 among the heat radiated from the thermoelectric element 120 decreases, and the heat radiated to the atmosphere by the cooling fan 148 decreases.
  • the amount of heat transferred to the preheating module 150 increases, allowing purified water in the preheating module 150 to be quickly heated to the target temperature.
  • the control unit 180 operates the circulation pump 170. It can be controlled so that purified water preheated to the temperature set in the preheating module 150 is supplied to the instantaneous hot water module 160.
  • the instantaneous hot water module 160 can heat hot water to the set temperature in a faster time, and as a result, more hot water can be provided in the same time. Therefore, more hot water can be provided to the user in a faster time.
  • thermoelectric element 120 can cool the thermoelectric element 120 by absorbing waste heat from the heat dissipation surface of the thermoelectric element 120.
  • the control unit 180 operates and rotates the cooling fan 148 or increases the number of rotations of the cooling fan 148 and circulates the cooling fan 148.
  • the pump 170 can be operated to circulate purified water in the preheating module 150.
  • thermoelectric element 120 can be cooled by absorption.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Water Treatment By Sorption (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)

Abstract

Est divulgué un purificateur d'eau qui utilise la chaleur perdue provenant d'un élément thermoélectrique. Un purificateur d'eau qui utilise la chaleur perdue provenant d'un élément thermoélectrique selon un aspect de la présente invention peut comprendre : un élément thermoélectrique présentant une surface de refroidissement formée sur un côté et une surface de dissipation de chaleur formée sur l'autre côté ; un module d'eau froide à travers lequel s'écoule l'eau purifiée filtrée et qui refroidit l'eau purifiée par la mise en contact de l'eau purifiée avec la surface de refroidissement de l'élément thermoélectrique ; un module de dissipation de chaleur qui entre en contact avec la surface de dissipation de chaleur et refroidit la surface de dissipation de chaleur en dissipant la chaleur émise par l'élément thermoélectrique dans l'atmosphère ; un module de préchauffage qui stocke temporairement de l'eau purifiée filtrée et chauffe l'eau purifiée stockée par la mise en contact de l'eau purifiée stockée avec le module de dissipation de chaleur qui est chauffé par la chaleur perdue émise par la surface de dissipation de chaleur de l'élément thermoélectrique ; un module d'eau chaude instantanée qui reçoit de l'eau purifiée qui a été chauffée par le module de préchauffage et chauffe l'eau purifiée qui a été préchauffée par le module de préchauffage ; une pompe de circulation qui transfère l'eau purifiée du module de préchauffage au module d'eau chaude instantanée ou fait circuler l'eau purifiée du module d'eau chaude instantanée au module de préchauffage ; et une partie de commande qui commande la pompe de circulation, le module d'eau chaude instantanée, l'élément thermoélectrique et le module de dissipation de chaleur en fonction du fonctionnement du module d'eau froide et de la température de l'eau purifiée dans le module de préchauffage.
PCT/KR2023/013022 2022-12-20 2023-08-31 Purificateur d'eau qui utilise la chaleur perdue provenant d'un élément thermoélectrique WO2024135995A1 (fr)

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KR10-2022-0179347 2022-12-20
KR1020220179347A KR20240097365A (ko) 2022-12-20 2022-12-20 열전소자의 폐열을 이용하는 정수기

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07217915A (ja) * 1994-01-27 1995-08-18 Takenaka Komuten Co Ltd 熱電併給システム
US20080098750A1 (en) * 2006-10-27 2008-05-01 Busier Mark J Thermoelectric cooling/heating device
JP5194619B2 (ja) * 2007-08-02 2013-05-08 富士電機株式会社 冷却加熱装置
KR20130119251A (ko) * 2012-04-23 2013-10-31 주식회사 레보테크 열전소자를 이용한 이동식 온냉 겸용 에어컨
KR20150094360A (ko) * 2014-02-11 2015-08-19 주식회사 동양매직 열전 소자를 이용한 정수기의 냉온 장치
KR20220001841A (ko) * 2020-06-30 2022-01-06 코웨이 주식회사 수처리 장치

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07217915A (ja) * 1994-01-27 1995-08-18 Takenaka Komuten Co Ltd 熱電併給システム
US20080098750A1 (en) * 2006-10-27 2008-05-01 Busier Mark J Thermoelectric cooling/heating device
JP5194619B2 (ja) * 2007-08-02 2013-05-08 富士電機株式会社 冷却加熱装置
KR20130119251A (ko) * 2012-04-23 2013-10-31 주식회사 레보테크 열전소자를 이용한 이동식 온냉 겸용 에어컨
KR20150094360A (ko) * 2014-02-11 2015-08-19 주식회사 동양매직 열전 소자를 이용한 정수기의 냉온 장치
KR20220001841A (ko) * 2020-06-30 2022-01-06 코웨이 주식회사 수처리 장치

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