EP2233858A2 - Accumulateur d'eau chaude doté d'un système de capteur - Google Patents

Accumulateur d'eau chaude doté d'un système de capteur Download PDF

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Publication number
EP2233858A2
EP2233858A2 EP10153917A EP10153917A EP2233858A2 EP 2233858 A2 EP2233858 A2 EP 2233858A2 EP 10153917 A EP10153917 A EP 10153917A EP 10153917 A EP10153917 A EP 10153917A EP 2233858 A2 EP2233858 A2 EP 2233858A2
Authority
EP
European Patent Office
Prior art keywords
sensor
temperature
water tank
hot water
temperature sensors
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP10153917A
Other languages
German (de)
English (en)
Other versions
EP2233858A3 (fr
EP2233858B2 (fr
EP2233858B1 (fr
Inventor
Bernd Schröder
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP2233858A2 publication Critical patent/EP2233858A2/fr
Publication of EP2233858A3 publication Critical patent/EP2233858A3/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/20—Arrangement or mounting of control or safety devices
    • F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
    • F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
    • F24H9/2021—Storage heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/18—Water-storage heaters
    • F24H1/20—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes
    • F24H1/201—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply
    • F24H1/202—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply with resistances
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/10—Control of fluid heaters characterised by the purpose of the control
    • F24H15/128—Preventing overheating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/212—Temperature of the water
    • F24H15/223—Temperature of the water in the water storage tank
    • F24H15/225—Temperature of the water in the water storage tank at different heights of the tank
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/355—Control of heat-generating means in heaters
    • F24H15/37—Control of heat-generating means in heaters of electric heaters
    • 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
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/04—Sensors
    • F24D2220/042—Temperature sensors
    • 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
    • F24D2240/00—Characterizing positions, e.g. of sensors, inlets, outlets
    • F24D2240/26—Vertically distributed at fixed positions, e.g. multiple sensors distributed over the height of a tank, or a vertical inlet distribution pipe having a plurality of orifices

Definitions

  • the present invention relates to a hot water tank for heating water, with a sensor system for measuring temperature, which has at least two temperature sensors.
  • German Offenlegungsschrift is known from the prior art DE 851 99 21 U1 in which a temperature sensor of a water heater with two inserted into a single protective tube from the open end of temperature sensor cartridges is disclosed. Through the one temperature sensor cartridge, a temperature controller is switched. The other temperature sensor cartridge switches a temperature limiter. The cartridges are arranged one above the other in the protective tube.
  • a detection device for the usable state of charge of a hot water storage heater with a temperature measurement over the height of the storage container is known. Over the height of the storage container several temperature sensors are distributed, the top is switched off during loading and the bottom when unloading.
  • elongated temperature sensor is arranged, which is constructed in the manner of a tubular heater, wherein a metal jacket tube, a resistance wire with temperature-dependent resistance is embedded. Another temperature sensor is located near the hot water outlet.
  • the invention has for its object to provide a comparison with the prior art improved hot water tank for heating water by means of electrical energy.
  • a sensor system for temperature measurement is to be provided, which should enable both the measurement of an averaged temperature of the hot water storage tank contents and the measurement of the temperatures of partial volumes of the hot water storage tank contents.
  • the sensor system should be easily adaptable to hot water storage tanks with different capacities.
  • a hot water tank for heating water by means of electrical energy is a device to understand in which water can be heated and stored, for example, under-table, over-table and wall units are included.
  • the hot water tank can have at least one water tank.
  • An inventive hot water tank can be designed both pressure-resistant and non-pressure.
  • a sensor system for temperature measurement means a system of temperature sensors that can be used to determine a water temperature. If temperature sensors in a sensor chain are connected in series, this is to be understood as meaning a series of temperature sensors in which at least one first and one last temperature sensor can be connected to a readout unit, and the temperature sensors are connected to one another in a series connection.
  • the invention is particularly suitable for the heating of fresh water.
  • the heated water can be used, for example, for body cleansing, dishwashing or drinking water.
  • the invention is suitable in particular for hot water storage tanks, which can heat water to a temperature of at least 15 ° C (degrees Celsius), particularly preferably at least 50 ° C, particularly preferably at least 60 ° C.
  • the invention is particularly suitable for hot water storage, which can heat water to a temperature of not more than 100 ° C, more preferably not more than 75 ° C, particularly preferably not more than 65 ° C.
  • an overall temperature of the water contained in the hot water tank can be determined. This can be done via the temperature sensors, which are arranged in different areas within the water tank of the hot water tank, and which are connected in series in a sensor chain starting with a first temperature sensor to a last temperature sensor of the sensor chain in series. In this case, a mean value of the individual temperatures can be determined by serial readout of the temperatures.
  • the solution according to the invention also makes it possible to determine the temperature of the water from the areas in which at least one temperature sensor is arranged.
  • the temperature determined by a single sensor which can also be arranged in the sensor chain, can be read out.
  • the reading of the individual temperature sensors can also be referred to as a parallel readout of the temperature sensors.
  • a connection of the temperature sensor e.g. the first connection can be used.
  • the water temperature at the water outlet or the water inlet can be output, whereby an improved control of the heating elements can be made possible.
  • the sensor system for hot water tank with different capacities can be used, since the temperature sensors of the sensor chain can be adapted to a wide variety of geometric specifications of the hot water tank. This requires only an adjustment of the mechanical attachment of the temperature sensors, with constant connection of the sensor system.
  • the sensor system has at least three temperature sensors.
  • the sensor system has at least four, five or six temperature sensors.
  • the temperature sensors of a preferred embodiment of the invention are connected in series in a sensor chain, wherein the first and the last temperature sensor can be connected to a readout unit.
  • the sensor system has connections outside the water tank via which the readout unit, which can be arranged outside the water tank, can be connected to the temperature sensors.
  • the temperature sensors of the sensor chain are arranged so that the sensor chain has no ring shape. In the sensor chain, it is possible with particular preference for any desired number of temperature sensors to be arranged. Through the sensor chain an adaptation to different tank shapes and / or tank volumes of a hot water tank is possible.
  • the sensor system can also extend vertically in a vertical extension of the hot water tank.
  • a hot water tank Under a vertical extension of a hot water tank, a hot water tank is to be understood with a water tank that is higher than wide. In such an arrangement, heated water may be at a higher elevation than cold water, which may result in water layers of different temperature that may be detected by individual temperature sensors of the sensor chain.
  • the temperature sensors of the sensor system may be arranged in the interior of the water tank of the hot water tank, but it is also conceivable that the temperature sensors are arranged on the outside of the water tank.
  • the sensor system can have further temperature sensors which are not arranged in the sensor chain. This can advantageously be achieved that the sensor system can be adapted to a wide variety of configurations of the water tank of the hot water tank.
  • temperature sensors could be used for a safety shutdown, which can prevent overheating when the tank drains due to leakage.
  • the temperature sensors of the sensor chain are preferably arranged in a sensor tube.
  • the sensor tube is closed.
  • all temperature sensors of the sensor system can be arranged in the sensor tube.
  • the sensor tube can protect the temperature sensors from, for example, mechanical stress that may occur during installation in the hot water storage tank during installation or from corrosion by the water in the hot water storage tank.
  • the sensor tube is advantageously designed mechanically stable and waterproof.
  • the temperature sensors are connected to one another within the sensor tube.
  • the temperature sensors of the sensor chain are connected together in series within the sensor tube. In this way, the interconnection of the sensors can be made possible without leading out of connections from the sensor tube, which enables a minimization of the connections of the sensor system.
  • the temperature sensors of the sensor chain are arranged in the longitudinal direction of the sensor tube.
  • the sensor chain advantageously extends along the sensor tube, so that the points at which a water temperature can be determined can be determined by the shape of the sensor tube.
  • the sensor tube in the form of a straight rod.
  • the sensor system can also be used for existing hot water storage.
  • a sensor tube with a straight shape allows easy manufacture and assembly, since the temperature sensors are inserted, for example, only in the sensor tube or the sensor tube with included temperature sensors can be easily integrated into a commercial hot water tank.
  • Embodiments of the invention are also conceivable in which the sensor tube can assume any geometry.
  • the first terminal of each temperature sensor of the sensor chain can be connected to a readout unit.
  • a readout unit This advantageously makes it possible for each temperature sensor to be individually readable, as a result of which the temperature detected by each temperature sensor can be determined.
  • the terminals of the temperature sensors can be connected to a read-out unit by being led out of the water tank through a line to a connection. If only the first and the last sensor of the sensor chain can be connected to a readout unit, then only one measurement of a total temperature can be made possible.
  • the determined temperature of this measurement may correspond to an averaging of the temperatures detected by the individual temperature sensors.
  • temperature sensors which are arranged between the first and the last temperature sensor of the sensor chain, can be connected to a read-out unit, it can advantageously be made possible for the temperatures determined by individual temperature sensors to be read out.
  • this can be used to measure the temperature of partial volumes of the water contained in the hot water storage tank, e.g. be made possible by layers of water.
  • the temperature at the water outlet of the water tank can be determined in order to be able to conclude a comparison with the averaged water temperature on the available amount of hot water. For example, if the temperature at the water outlet is high, but the average temperature is low, it can be concluded that there is less available hot water than at high water temperature at the water outlet and high average total temperature.
  • the number of temperature sensors can be increased without increasing the number of connections. This can be achieved that the sensor system for different hot water tanks with the same Readout unit is used. If, however, each temperature sensor is to be individually readable, advantageously only one connection to the already existing connections of the sensor system must be added when inserting a temperature sensor into the sensor chain.
  • each temperature sensor can optionally be used for control and / or display functions.
  • the path are arranged at the temperature sensors, from a first half of a water tank of the hot water tank in a second half of the water tank.
  • the distance are arranged at the temperature sensors, from a first third, preferably quarter, preferably eighth to a last third, preferably quarter, preferably eighth of the height of the water tank of the hot water tank.
  • the height of the water tank is to be understood as the longest extent of the interior of the hot water tank.
  • the route is to be understood, which begins with the first temperature sensor of the sensor chain and ends with the last temperature sensor of the sensor chain.
  • the distances between the temperature sensors of the sensor chain can be selected so that the distance at which temperature sensors are arranged can be adapted for hot water storage tanks with different capacities.
  • the middle sensor is particularly preferably in the middle of the hot water tank, the first sensor particularly preferably at the water inlet, and the last sensor is particularly preferably arranged at the water outlet, e.g. the water inlet in the first quarter and the water outlet in the last quarter of the water tank can be arranged.
  • the water outlet e.g. the water inlet in the first quarter and the water outlet in the last quarter of the water tank can be arranged.
  • Temperature sensors preferred according to the invention are manufactured from a resistance wire with temperature-dependent resistance.
  • the temperature sensors of PTC resistors, so-called PCT resistors made in which the resistance increases with increasing temperature.
  • the temperature sensors Thermistor resistors, so-called NTC resistors are made, in which the resistance decreases with increasing temperature.
  • the sensor system is arranged separately from a heating element on the hot water tank.
  • a necessary safety distance between the sensor system and a heating element can be maintained so that overheating of the sensor system can be avoided.
  • the temperature sensors of the sensor system can be arranged independently of the heating element on the hot water tank.
  • the hot water tank on a Walkerflansch on which the sensor system is arranged is arranged.
  • This allows the advantageous use of the sensor system for already available on the market hot water tank.
  • the use in an assembly is made possible, which allows a cost-effective production and easy installation.
  • the present invention makes it possible to detect the water temperature of a hot water storage tank with simple structural and cost-effective means, whereby both an overall temperature and temperatures of partial volumes can be detected. In this way, a sensor system can be provided that can be used for hot water storage tanks with different capacities.
  • a hot water tank 1 is shown for heating water in a sectional view from one side.
  • Fig. 2 shows a sensor system 2 for temperature measurement for the hot water tank 1 from Fig. 1 in a sectional view.
  • the sensor system 2 is arranged on a heating flange 12 of the hot water tank 1 separated from the heating element 11, so that between the heating element 11 and sensor system 2 a safety distance is maintained in order to avoid overheating of the sensor system 2.
  • the sensor system 2 has three temperature sensors 5, 6, 14 made of a resistance wire with temperature-dependent resistance.
  • the three temperature sensors 5, 6, 14 are connected in series in a sensor chain and are arranged in a sensor tube 7, wherein they are interconnected within the sensor tube 7 and arranged in the longitudinal direction of the sensor tube 7.
  • the sensor tube 7 has the shape of a straight rod.
  • the first terminal 3 of the first temperature sensor 5 is, like all other terminals connectable via the terminal contacts 13 of the sensor system 2 to a reading unit, not shown for reasons of representation.
  • the second terminal 4 of the first temperature sensor 5 is connected to the first terminal 3 of the next, so the second temperature sensor 14, which also to the not shown Readout unit is connectable.
  • the second terminal 4 of the second temperature sensor 14 is connected to the first terminal 3 of the next, so the last temperature sensor 6, which is connectable to the readout unit, not shown.
  • the second terminal 4 of the last temperature sensor 6 can also be connected to the reading unit, not shown.
  • the sensors can be read both serially and in parallel.
  • a temperature can be determined which corresponds to the averaging of the temperatures which are detected by the individual temperature sensors. For this purpose, the resistance of the entire sensors connected in series can be determined. In the parallel readout of the sensors, the temperature detected by the individual temperature sensors can be determined. For this purpose, the resistance of each individual temperature sensor can be determined.
  • the temperature sensors 5, 6, 14 of the sensor chain define a path that starts with the first temperature sensor 5 and ends with the last temperature sensor 6. This distance extends from the first half 8 of the water tank 9 to the second half 10 of the water tank 9.
  • the first temperature sensor 5 is at the water inlet 15 in the first quarter 16 of the water tank
  • the last temperature sensor 6 is at the water outlet 17 in the water tank last quarter 18 of the water tank 9 arranged.
  • the heating element 11 can be controlled via the first temperature sensor 5.
  • the present invention makes it possible to detect the water temperature of a hot water storage tank with simple structural and cost-effective means, whereby both an overall temperature and temperatures of partial volumes can be detected. In this way, a sensor system can be provided that can be used for hot water storage tanks with different capacities.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
EP10153917.9A 2009-03-13 2010-02-18 Accumulateur d'eau chaude doté d'un système de capteur Not-in-force EP2233858B2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009001557A DE102009001557A1 (de) 2009-03-13 2009-03-13 Warmwasserspeicher mit Sensorsystem

Publications (4)

Publication Number Publication Date
EP2233858A2 true EP2233858A2 (fr) 2010-09-29
EP2233858A3 EP2233858A3 (fr) 2011-07-27
EP2233858B1 EP2233858B1 (fr) 2013-10-23
EP2233858B2 EP2233858B2 (fr) 2018-06-27

Family

ID=42154243

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10153917.9A Not-in-force EP2233858B2 (fr) 2009-03-13 2010-02-18 Accumulateur d'eau chaude doté d'un système de capteur

Country Status (3)

Country Link
EP (1) EP2233858B2 (fr)
CN (1) CN101839553B (fr)
DE (1) DE102009001557A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012044092A2 (fr) 2010-09-30 2012-04-05 Woongjin Coway Co., Ltd Réservoir d'eau chaude présentant une fonction anti-surchauffe
WO2014087162A1 (fr) * 2012-12-04 2014-06-12 Isis Innovation Limited Capteur, dispositif de commande et système
DE102014015054A1 (de) * 2014-10-15 2016-04-21 Stiebel Eltron Gmbh & Co. Kg Warmwasser-Speicher

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105696650B (zh) * 2016-03-30 2018-06-01 唐若权 带热水供应的智能供水系统
AT523312B1 (de) * 2019-12-27 2022-12-15 Austria Email Ag Haltevorrichtung für einen Temperaturfühler, Tauchrohr mit einer solchen Haltevorrichtung sowie Vorrichtung mit einem solchen Tauchrohr
CN114088245A (zh) * 2021-11-17 2022-02-25 成都海光微电子技术有限公司 温度检测装置及检测方法

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DE8519921U1 (de) 1985-07-10 1985-08-22 Stiebel Eltron Gmbh & Co Kg, 3450 Holzminden Temperaturfühler
DE4401539C2 (de) 1994-01-20 1999-04-29 Stiebel Eltron Gmbh & Co Kg Erfassungseinrichtung für den nutzbaren Ladezustand eines Warmwasserspeichers

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DE4401539C2 (de) 1994-01-20 1999-04-29 Stiebel Eltron Gmbh & Co Kg Erfassungseinrichtung für den nutzbaren Ladezustand eines Warmwasserspeichers

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012044092A2 (fr) 2010-09-30 2012-04-05 Woongjin Coway Co., Ltd Réservoir d'eau chaude présentant une fonction anti-surchauffe
EP2622281A4 (fr) * 2010-09-30 2016-09-07 Coway Co Ltd Réservoir d'eau chaude présentant une fonction anti-surchauffe
EP2622281B1 (fr) 2010-09-30 2019-03-27 Coway Co., Ltd. Réservoir d'eau chaude présentant une fonction anti-surchauffe
WO2014087162A1 (fr) * 2012-12-04 2014-06-12 Isis Innovation Limited Capteur, dispositif de commande et système
US20150323391A1 (en) * 2012-12-04 2015-11-12 Malcolm Duncan McCulloch Sensor, controller and system
AU2013353845B2 (en) * 2012-12-04 2018-06-07 Oxford University Innovation Limited Sensor, controller and system
EP3546847A3 (fr) * 2012-12-04 2019-12-25 Oxford University Innovation Ltd. Capteur de temperature et contrôle de température liquide
US10739210B2 (en) 2012-12-04 2020-08-11 Oxford University Innovation Limited Sensor, controller and system
US11733106B2 (en) 2012-12-04 2023-08-22 Oxford University Innovation Limited Sensor, controller and system
DE102014015054A1 (de) * 2014-10-15 2016-04-21 Stiebel Eltron Gmbh & Co. Kg Warmwasser-Speicher
DE102014015054A8 (de) * 2014-10-15 2016-08-11 Stiebel Eltron Gmbh & Co. Kg Warmwasser-Speicher

Also Published As

Publication number Publication date
EP2233858A3 (fr) 2011-07-27
CN101839553A (zh) 2010-09-22
EP2233858B2 (fr) 2018-06-27
CN101839553B (zh) 2014-07-23
EP2233858B1 (fr) 2013-10-23
DE102009001557A1 (de) 2010-09-23

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