WO2011069288A1 - Dispositif permettant le chauffage d'eau et la fourniture d'une alimentation en eau chaude, et procédé de fonctionnement d'un tel dispositif - Google Patents

Dispositif permettant le chauffage d'eau et la fourniture d'une alimentation en eau chaude, et procédé de fonctionnement d'un tel dispositif Download PDF

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Publication number
WO2011069288A1
WO2011069288A1 PCT/CN2009/075400 CN2009075400W WO2011069288A1 WO 2011069288 A1 WO2011069288 A1 WO 2011069288A1 CN 2009075400 W CN2009075400 W CN 2009075400W WO 2011069288 A1 WO2011069288 A1 WO 2011069288A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
pipe
outflow
water supply
tank
Prior art date
Application number
PCT/CN2009/075400
Other languages
English (en)
Inventor
Yanxin Li
Zhang Peng
Weiwei Wang
Markus Koch
Alexandros Zachos
Original Assignee
Vorwerk & Co. Interholding 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
Application filed by Vorwerk & Co. Interholding Gmbh filed Critical Vorwerk & Co. Interholding Gmbh
Priority to CN200980162794.9A priority Critical patent/CN102667358B/zh
Priority to PCT/CN2009/075400 priority patent/WO2011069288A1/fr
Priority to TW099142558A priority patent/TWI526657B/zh
Publication of WO2011069288A1 publication Critical patent/WO2011069288A1/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
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/18—Water-storage heaters
    • F24H1/185—Water-storage heaters using electric energy supply
    • 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
    • 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
    • F24H15/246—Water level
    • F24H15/248—Water level of water storage tanks
    • 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
    • F24H15/281—Input from user
    • 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
    • F24H15/305—Control of valves
    • F24H15/31—Control of valves of valves having only one inlet port and one outlet port, e.g. flow rate regulating valves
    • 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
    • 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

Definitions

  • the invention relates first of all to a device for heating water and providing a warm water supply, having a water tank and a heating means assigned thereto for heating a water supply present in the water tank, wherein the water tank has a water supply and a water outflow, wherein the water outflow is additionally both a hot water outflow and a cold water outflow.
  • Devices of the type under discussion are known. These are used in particular in kitchen or bathroom areas to provide hot water, furthermore in particular in connection with a water tapping point, for example a kitchen sink or a wash basin.
  • Devices of this kind comprise a water tank, which is supplied with cold water from the house main supply for providing hot water. The cold water held in the water tank is heated as a result of heating means acting indirectly or directly on the water supply in the water tank to a pre-determined temperature, where appropriate selected by the user.
  • Devices of this kind are furthermore known in the form of so-called under sink water heaters.
  • a technical problem to be addressed by the invention is to further improve a device of the type under discussion with due consideration to favourable energy efficiency.
  • the water tank can be filled following a corresponding activation of said shutoff. Heating of water and provision of a hot water supply accordingly takes place only when required, preferably by the shutoff being actuated by the user in a targeted manner. In a preferred arrangement this causes a back pressure of the cold water entering through the water supply into the water outflow to be obtained, which back pressure brings about the filling of the water tank.
  • the water tank is used exclusively on demand for heating a quantity of water preferably selected in advance by the user. This serves to counteract any microbial contamination in particular of the interior surfaces and base areas of the water tank.
  • a further preferred arrangement of the subject matter of the invention provides that the water supply pipe protrudes into the water outflow pipe, this being in such a way as to leave an opening cross-section forming the outflow opening between the water supply and water outflow pipes.
  • the water supply pipe protrudes to an axial extent into the water outflow pipe, which axial extent preferably corresponds to a factor of 0.5 to 3 times, more preferably a factor of 1 to 1.5 times that of the outside diameter of the water supply pipe. This further preferably guarantees that in when drawing only cold water this flows in a directed manner through the water supply into the water outflow and is passed via this to the tapping point (bypassing the water tank) .
  • the opening cross-section that is formed between the pipes for the water supply and the water outflow, in a preferred configuration using tubular pipework, is circular in shape.
  • the opening cross-section is further selected in terms of its area such that filling of the water tank is effected via the outflow opening so defined, and furthermore, in such a manner that after appropriate activation of the shutoff the water tank is filled up to to a height to be pre-determined in a reasonable time.
  • the opening cross-section is selected so that, as a result of back pressure, a through passage of water into the water tank with respect to the water flow quantity per unit time corresponds to a factor of 0.3 to 1, more preferably a factor of 0.5 to 0.7 times the water flow quantity per unit time when cold water alone is drawn.
  • the outside diameter of the water supply pipe opening into the water outflow pipe corresponds to 0.5 to 0.9 times, more preferably 0.7 to 0.8 times, that of the internal diameter of the water outflow pipe.
  • the water supply pipe opens concentrically in the water outflow pipe, so that an annular shaped opening cross-section is formed between the pipes.
  • the outflow opening of the water tank serves as an inlet port in the course of the filling process of said tank. Accordingly, the opening on the water tank side has a double function.
  • the water supply pipe passes through the water tank in a further preferred arrangement, more preferably with respect to an outline extent of the water tank in a central position. Accordingly, when the water tank is full and during the subsequent heating process, the water supply pipe is surrounded by the medium to be heated, as a result of which an exchange of heat takes place between the water column present in the water supply pipe and the quantity of water admitted into the water tank. Accordingly the water column present in the water supply pipe during the heating process is preferably also brought to the desired temperature at least up to the level of the water level within the water tank.
  • the water supply pipe in particular in the area where it penetrates the water tank, is preferably formed from a good heat-conducting material (for example from relatively thin-walled copper or plastic with a wall thickness of, e.g., 1 mm to 2 mm) .
  • a stop valve is assigned to the water supply pipe.
  • the water supply for filling the water tank can be obtained after appropriate closure of the shutoff provided behind the outflow opening of the water tank in the flow direction, by the cold water supply being shut off.
  • This stop valve also allows the corresponding supply to be regulated when only cold water is being drawn.
  • the additional shutoff downstream of the outlet of the water tank is further preferably formed likewise in the form of a stop valve. This serves, preferably in cooperation with the stop valve of the cold water supply, to fill the water tank and to empty it.
  • the invention further relates to a procedure for operating a device for heating water and providing a hot water supply, wherein the device has a water tank, a water supply and a water outflow, wherein further the water supply pipe discharges into the water outflow pipe, and a stop valve is provided in the water supply pipe before the discharge in the flow direction and in the water outflow pipe after the discharge opening in the flow direction.
  • a filling of the water tank is undertaken by back pressure of the supply water flowing beneath the flow opening into the water outflow pipe as a result of shutting off the water outflow pipe.
  • the water outflow serving also as the cold water outflow is shut off, e.g. by appropriate activation of a stop valve.
  • Two stop valves are preferably provided here, one for regulating the cold water supply and one for filling and emptying the water tank, which valves in a further preferred arrangement are coupled together, in particular with respect to the filling and emptying of the water tank.
  • These can furthermore be electromagnetically activatable valves, wherein preferably the actuation of the stop valve causing the back pressure is coupled to an actuation of the stop valve regulating the cold water supply. It is further preferred that on reaching a maximally predefined water level in the water tank an automatic shutoff of the cold water supply is caused by shutting off the corresponding shutoff means.
  • appropriate sensors are further provided in the water tank, moreover in a simpler configuration a sensor in the form of a float. The sensor is designed for generating a signal, which in a preferred configuration controls the stop valve in the cold water supply pipe.
  • the stop valve in the water outflow pipe preferably remains in the closed position.
  • hot water is preferably removed completely, so that thereafter the water tank is emptied.
  • the shutoff particularly in the case of the drawing of cold water, which takes place without rinsing of the water tank, is preferably achieved by closing off the valve arranged in the supply pipe. Accordingly, in a preferred configuration after a corresponding hot or cold water removal the system is in a dry state downstream of the cold water supply valve. No residual amounts of water therefore remain in the water tank, in the section of the supply pipe behind the associated stop valve or in the outflow pipe Alternatively the supply shutoff is effected by closure of both valves, with the valves furthermore preferably being under coupled control .
  • the outflow opening arranged in the water tank upstream of the discharge opening of the water supply pipe into the water outflow pipe is dimensioned such that when only supply water is passing through it, i.e. preferably cold water is passing through it, a suction effect is obtained with respect to the water tank.
  • the cold water flowing through the water supply pipe into the water outflow pipe provides thus provides a so-called water jet pump effect.
  • the water supply pipe in this arrangement protrudes into the water outflow, this being in such a way as to leave a preferably annular opening cross-section forming the outflow opening between the water supply and water outflow pipes.
  • the respectively indicated numerical bands also include - unless otherwise indicated in an example - all intermediate values, namely restricted in particular in 1/10 steps from the lower and / or upper limit up to the respective other limit. "And” in this context means that both limits are shifted by one or more tenths towards the limit, i.e. they are curtailed.
  • Fig. 1 in a partially section view a device of the type under discussion in a position with cold water flowing through;
  • FIG. 2 the enlarged area II in Fig. 1;
  • Fig. 3 the section along the line 111 - III in Fig. 2;
  • Fig. 4 a diagram corresponding to Fig. 1, but concerning an intermediate position in the course of filling a water tank;
  • Fig. 5 a sequential illustration to Fig. 3, concerning the filled position of the water tank;
  • Fig. 6 the device represented as in Fig. 1, but concerning the outflow of the water stored and heated in the water tank;
  • Fig. 7 a flow diagram to illustrate the method for operating the device.
  • a device 1 for heating water and providing a hot water supply is a device 1 for heating water and providing a hot water supply.
  • the device 1 has first of all a water tank 2. This possesses a tank base 3 and a surrounding tank wall 4, extending perpendicular to the plane of the base. The latter bears a tank cover 5, spaced vertically apart from the tank base 3, which extends in a plane lying at right angles to the height extension of the tank wall 4.
  • the water tanks 2 a preferably has a concentric configuration, wherein a vertical axis x of the water tank 2 is aligned parallel to the vertical extent of the tank wall 4.
  • the water tank 2 has a polygonal outline, e.g a square .
  • the tank base 3 extends at an angle to the centre of the ground, this preferably subtending an angle a to a horizontal plain of about 5°.
  • a heating means 6 is arranged on the underside of the tank base 3. In a preferred configuration this takes the form of an electric resistance headier. Further, the heating means 6 preferably has conductor tracks applied on a dielectric forming an isolation layer. These resistive conductor tracks are preferably applied on the dielectric using ceramic pastes by silk-screen printing, wherein further preferably a concentric arrangement of conductor tracks is provided with reference to the vertical axis x.
  • the tank base 3 is further preferably a component of the heating means 6, for which purpose this is constructed of stainless steel plate, on the underside of which the dielectric with the conductor tracks is applied.
  • a measurement sensor 7 is further preferably provided in the form of an NTC element with a resistance of e.g. ⁇ , ⁇ .
  • an outflow opening 8 is provided at the centre of the tank base 3 . This is formed by the free interior cross-section of a pipe 9 of a water outflow 10. This water outflow pipe 9 is joined in a sealed manner to the tank base 3 so as to leave the outflow opening 8, wherein a free end of the pipe 9 is flush with the surface of the tank base 3 facing into the tank interior.
  • the water outflow pipe 9 leads to a water tapping point site, not shown .
  • a pipe 11 is provided for a water supply 12.
  • This pipe 11 is formed, as is also preferably the pipe 9, as a tube with a circular cross-section.
  • the pipe 11 penetrates the water tank 2 centrally, accordingly the pipe axis with coincides with the vertical axis x of the water tank 2.
  • the pipe 11 thus penetrates the tank cover 5 and with its free end facing vertically downwards is immersed into the pipe 9 of the water outflow 10.
  • the outside diameter a of the pipe 11 of the water supply 12 corresponds in the embodiment shown of the pipe 9 of the water outflow 10 to about 0.8 times the free internal diameter.
  • An annular opening cross-section is accordingly formed in the area of the outflow opening 8 in the case of a concentric discharge opening of the pipe 11 in the pipe 9.
  • the pipe 11 of the water supply 12 is immersed by an amount c into the pipe 9 of the water outflow 10, which amount c corresponds in the embodiment shown to about 1.3 times the outside diameter a of the pipe 11.
  • a stop valve 13 is provided in the pipe 11 of the water supply 12 in front of the outflow opening 8 in the flow direction.
  • a further stop valve 14 of the same type is positioned downstream in the pipe of 9 the water outflow 10.
  • Both valves in the embodiment shown are constructed as shutoff flaps, but can alternatively also be slider-style and / or adjustable valves for regulating flow rate quantities.
  • Both stop valves 13 and 14 are further preferably electrically controllable, in particular electromagnetically activated, for which purpose a corresponding actuator unit 15 is provided. This acts on a stop valve, further preferably on both stop valves, wherein the corresponding control can be effected automatically according to given parameters, or alternatively by user intervention .
  • a corresponding actuator unit 15 is provided.
  • the device 1 is interposed between the building cold water supply and the tapping point site, the pipe 11 of the water supply 12 being directly connected to the building cold water supply.
  • the device 1 is further designed so that from the tapping point site either supply water, i.e. usually cold water KW from the building cold water supply, or heated warm water WW in the water tank 2 can be taken from the tapping point site.
  • the stop valve 13 and the stop valve 14 are both closed. Starting from this initial position G, the choice is made (symbolised in fig. 7 with S) whether cold or hot water is to be drawn via the tapping point, not shown. Accordingly, different flows are selected K (cold water) and/or W (hot water)
  • both stop valves 13 and 14 of the pipe 11 for the water supply 12 and the pipe 9 for the water outflow 10 are opened in accordance with the illustration in Fig. 1.
  • the opening of the stop valves 13 and 14 preferably takes place at the same time, due to coupling of the actuation devices acting on the valves, and further preferably via the actuation unit 15, for which the latter has e.g. a corresponding activation button "cold water” .
  • the stop valves 13 and 14 can also be arranged so that these are arranged in proximity to each other, and in a further configuration of the same are e.g. free to be activated manually in the form of sliding valves.
  • the water tank 2 is first of all filled with inflowing water - here cold water KW .
  • the stop valve 13 on the water supply side is first of all to be opened from its valve-locked initial position G, this preferably being controlled by the actuator unit 15, or alternatively manually by user intervention. Via the opened stop valve 13, water from the supply - cold water KW - flows through the pipe 11 for the water supply 12 into the pipe 9 for the water outflow 10, is dammed as a result of the closed stop valve 14 on the water outflow side and, upon a further flow of supply water through the annular outflow opening 8 in the base of the water tank 2, enters the tank.
  • the water tank 2 is successively filled , up to a fill level desired by the user, further preferably up to a maximum height, which is monitored by a level sensor 16. If the water level in the water tank 2 reaches a maximum, then an appropriately generated signal from the level sensor 16 triggers a closure of the stop valve 13 on the water supply side.
  • the closure of the supply side stop valve 13 is followed by the heating of the water supply stored in the water tank 2 by means of the heating means 6 provided on the base.
  • the temperature is monitored via the measurement sensor 7. If the water temperature that is preset or alternatively pre-selected by the user is reached, then an appropriately generated signal from the measurement sensor 7 leads to the heating means 6 being switched off, whereupon the warm water WW is ready to flow out.
  • the opening of the stop valve 14 can take place automatically, in a self -activated manner, depending on a signal generated by the measurement sensor 7, that the selected water temperature is reached.
  • the opening of the water outflow side stop valve 14 takes place due to user intervention, this being done manually if the valve is configured as e.g. a slider valve, but more preferably automatically as a result of the pressing of a button or the like in the area of the actuator unit 15.
  • any remaining moisture within the water tank 2, in particular resting on the tank base 3, is removed as part of a subsequent drawing of cold water as a result of a suction effect.
  • the water from the supply flowing through the pipe 11 for the water supply 12 into the pipe 9 for the water outflow 10 acts in this context in the manner of a water jet pump, wherein a negative pressure via the annular opening cross-section of the outflow opening 8 acts at least on the immediate surroundings of the base of the outflow opening 8.

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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)
  • Fluid Mechanics (AREA)
  • Devices For Dispensing Beverages (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Domestic Plumbing Installations (AREA)

Abstract

L'invention concerne un dispositif (1) permettant le chauffage d'eau et la fourniture d'une alimentation en eau chaude, qui comprend un réservoir d'eau (2) et un moyen de chauffage (6) attribué au réservoir d'eau (2) afin de chauffer une alimentation en eau présente dans le réservoir d'eau, le réservoir d'eau (2) comprenant une alimentation en eau (12) et un écoulement d'eau (10), l'écoulement d'eau (10) étant en outre à la fois un écoulement d'eau chaude et un écoulement d'eau froide, caractérisé en ce que le tuyau (11) pour l'alimentation en eau (12) se déverse dans le tuyau (9) pour l'écoulement d'eau (10) et en ce qu'en coupant l'écoulement d'eau (10) en aval de l'ouverture de déversement, le réservoir d'eau (2) peut être rempli.
PCT/CN2009/075400 2009-12-08 2009-12-08 Dispositif permettant le chauffage d'eau et la fourniture d'une alimentation en eau chaude, et procédé de fonctionnement d'un tel dispositif WO2011069288A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN200980162794.9A CN102667358B (zh) 2009-12-08 2009-12-08 用于加热水和提供热水供给的装置及其操作方法
PCT/CN2009/075400 WO2011069288A1 (fr) 2009-12-08 2009-12-08 Dispositif permettant le chauffage d'eau et la fourniture d'une alimentation en eau chaude, et procédé de fonctionnement d'un tel dispositif
TW099142558A TWI526657B (zh) 2009-12-08 2010-12-07 對水加熱及設置熱水供應之裝置，及該裝置之操作方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2009/075400 WO2011069288A1 (fr) 2009-12-08 2009-12-08 Dispositif permettant le chauffage d'eau et la fourniture d'une alimentation en eau chaude, et procédé de fonctionnement d'un tel dispositif

Publications (1)

Publication Number Publication Date
WO2011069288A1 true WO2011069288A1 (fr) 2011-06-16

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2009/075400 WO2011069288A1 (fr) 2009-12-08 2009-12-08 Dispositif permettant le chauffage d'eau et la fourniture d'une alimentation en eau chaude, et procédé de fonctionnement d'un tel dispositif

Country Status (3)

Country Link
CN (1) CN102667358B (fr)
TW (1) TWI526657B (fr)
WO (1) WO2011069288A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2971532A (en) * 1956-04-05 1961-02-14 Smith Corp A O Water heater fitting for delivering two temperatures of heated water
JPS62108933A (ja) * 1985-11-08 1987-05-20 Matsushita Electric Ind Co Ltd 給湯装置
DE8910514U1 (fr) * 1988-09-09 1989-10-19 Joh. Vaillant Gmbh U. Co, 5630 Remscheid, De
CN2085929U (zh) * 1990-12-26 1991-10-02 申朗 二次加热工作的水热管淋浴器
CN1378059A (zh) * 2001-04-04 2002-11-06 路英梅 一种不结水垢且耐高压的加热水的方法与装置
CN1455209A (zh) * 2002-04-29 2003-11-12 吴明明 微波热水器

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2971532A (en) * 1956-04-05 1961-02-14 Smith Corp A O Water heater fitting for delivering two temperatures of heated water
JPS62108933A (ja) * 1985-11-08 1987-05-20 Matsushita Electric Ind Co Ltd 給湯装置
DE8910514U1 (fr) * 1988-09-09 1989-10-19 Joh. Vaillant Gmbh U. Co, 5630 Remscheid, De
CN2085929U (zh) * 1990-12-26 1991-10-02 申朗 二次加热工作的水热管淋浴器
CN1378059A (zh) * 2001-04-04 2002-11-06 路英梅 一种不结水垢且耐高压的加热水的方法与装置
CN1455209A (zh) * 2002-04-29 2003-11-12 吴明明 微波热水器

Also Published As

Publication number Publication date
TWI526657B (zh) 2016-03-21
CN102667358A (zh) 2012-09-12
TW201139953A (en) 2011-11-16
CN102667358B (zh) 2014-12-31

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