EP2607811B1 - Accumulateur d'eau chaude avec dispositif de décharge de pression - Google Patents

Accumulateur d'eau chaude avec dispositif de décharge de pression Download PDF

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Publication number
EP2607811B1
EP2607811B1 EP12197561.9A EP12197561A EP2607811B1 EP 2607811 B1 EP2607811 B1 EP 2607811B1 EP 12197561 A EP12197561 A EP 12197561A EP 2607811 B1 EP2607811 B1 EP 2607811B1
Authority
EP
European Patent Office
Prior art keywords
hot water
water tank
tank
membrane
pressure relief
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.)
Not-in-force
Application number
EP12197561.9A
Other languages
German (de)
English (en)
Other versions
EP2607811A2 (fr
EP2607811A3 (fr
Inventor
Stefan Burghardt
Michael Gruber
Gebhard Mayer
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 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
Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP2607811A2 publication Critical patent/EP2607811A2/fr
Publication of EP2607811A3 publication Critical patent/EP2607811A3/fr
Application granted granted Critical
Publication of EP2607811B1 publication Critical patent/EP2607811B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F24H9/12—Arrangements for connecting heaters to circulation pipes
    • F24H9/13—Arrangements for connecting heaters to circulation pipes for water heaters
    • F24H9/133—Storage heaters
    • F24H9/136—Arrangement of inlet valves used therewith

Definitions

  • the invention relates to an electric hot water tank, in particular an open hot water tank, for the provision of hot water according to the preamble of patent claim 1.
  • Hot water tank instead of mounted with a special designed for non-pressurized hot water tank fitting with a normal fitting, which can cause the water tank is subjected to a line pressure and also burst.
  • the object of the invention is to provide a hot water tank, in particular an open hot water tank, for the provision of hot water, which continues to ensure safe operation for a user in the event of a possible overpressure situation.
  • the hot water tank according to the invention in particular designed as an open hot water tank, for providing hot water comprises a tank for storing the hot water, an inlet nozzle for supplying cold water into the tank, an outlet for removing the hot water from the tank, and a pressure relief device.
  • the pressure relief device is designed in such a way as to provide a fluid connection between inlet connection and outlet connection during a pressure relief.
  • the pressure relief device thus provides a fluid connection between inlet nozzle and outlet nozzle in the event of a fault, so that the water can flow through the outlet nozzle in case of failure.
  • the pressure relief device Upon reaching a predetermined positive pressure in the lines or in the tank, the pressure relief device can be activated, whereby the fluid connection can be provided.
  • the pressure relief device includes a discharge bypass.
  • the relief bypass can provide a fluid connection between inlet and outlet in case of overpressure. The flowing into the memory water can therefore flow through the outlet pipe, so that the hot water tank can not be destroyed by the resulting pressure.
  • the pressure relief device has a closure unit.
  • the closure unit is set up in order to be able to release the fluid connection in the event of an overpressure situation.
  • the closure unit comprises a membrane, wherein the membrane surface defined by the membrane runs perpendicular to a longitudinal axis of the relief bypass.
  • the membrane can thus activate or enable the pressure relief by tearing. This happens in the case of overpressure or the like, and the cold water can flow through the ruptured membrane via the bypass to the outlet nozzle. The user would then recognize that an error has occurred because the effluent water is cold
  • the invention is particularly suitable for providing a safe open hot water tank in the field of home appliance technology, which is reliably protected against overpressure and thus against bursting of his tank or its water pipes.
  • the closure unit is disposed within the relief bypass of the pressure relief device. As a result, the fluid connection can be easily opened or closed.
  • the relief bypass expediently has a holder for the closure unit. Consequently, the lock unit can be securely fixed in the bypass, and further, a modular structure can be provided.
  • the holder and the discharge bypass are integrally formed. Due to the integral design, the manufacturing costs can be lowered, so that the components can be produced in a simple step, for example by injection molding. Furthermore, by the integral or one-piece construction, the tightness and high pressure resistance can be ensured.
  • the membrane of the closure unit is designed to tear in the event of pressure release.
  • the membrane may have different wall thicknesses or different contours, which both have an influence on the tearing time. For example, a thick membrane will withstand higher pressures and consequently tear later. It is also conceivable that the membrane surface, which is afflicted with water pressure, is formed wavy.
  • the membrane is preferably made of an elastic material, e.g. TPE, manufactured.
  • the membrane comprises an elastic material, in particular a thermoplastic elastomers TPE, which is easy to produce, and if the closure unit is produced in a two-component process, the membrane can be molded fluid-tightly and securely onto the holding frame of the closure unit.
  • TPE thermoplastic elastomers
  • the closure unit preferably comprises a seal, which provides a fluid-tight mounting of the closure unit in the relief bypass.
  • the seal may be formed, for example, as a ring seal, which is attachable along the holding frame.
  • the ring seal has substantially a contour which is adapted to the holding frame.
  • a plurality of such seals are provided on the support frame. These can be arranged on both sides, i. Both sides of the discharge bypass (the side of the inlet nozzle and / or the side of the outlet nozzle) will thus be sealed.
  • the closure unit is designed to be interchangeable by a user.
  • a new, intact closure unit used without having to replace the entire hot water tank.
  • the holder for the closure unit and the relief bypass are integrally formed in and / or on the tank. Consequently, a compact design can be achieved, which is already fluid-tight in the production, without additional seals must be provided. It is also preferred that relief bypass, retainer, inlet ports and outlet ports all be integral with the tank (i.e., integral) in a plastic injection molding process.
  • FIG. 1 a portion of an open hot water tank 1 according to the invention with a preferred pressure relief device 2 is shown. To facilitate the following figuring the pressure relief device 2 is shown substantially enlarged.
  • the hot water tank 1 is used to provide hot water and is in lower or Top table construction installable. He has an indicated tank 4 for storing the hot water, an inlet nozzle 6 for supplying cold water to the tank 4, a discharge nozzle 8 for removing the hot water, a heating unit, not shown, for heating the cold water in the tank 4 and a control and regulating unit, not shown ,
  • the pressure relief device 2 is set up to allow a tank-side or downstream of the pressure relief device 2 downstream positive pressure in the hot water tank 1, in particular within the tank 4 and in the outlet 8 does not rise above an adjustable value.
  • the pressure relief device 2 is used for pressure relief of the downstream water-bearing elements in a possible overpressure.
  • the overpressure can occur if, for example, the outlet nozzle calcified and thus no hot water can be removed from the tank. In this case, cold water would continue to flow into the tank, whereby the pressure in the tank 4 would rise, which leads to a bursting of the plastic tank 4 usually.
  • the pressure relief device is set up to compensate or relieve this overpressure by diverting the cold water via the relief bypass 3 from the inlet connection 6 to the outlet connection 8.
  • the pressure relief device 7 In normal operation, i. no calcification or the like, the pressure relief device 7, a closure unit 7, which prevents the fluid connection between the inlet nozzle 6 and outlet 8.
  • the closure unit 7 is mounted inside the discharge bypass 3 and is fixed by means of a holder 9.
  • the closure unit 7 thus prevents the passage of water through the bypass 9, so that in normal operation cold water can flow into the tank 4 and the user can take hot water through the drain 8.
  • the closure unit 7 can be renewed. Thereafter, the hot water tank can be returned to normal operation. Consequently, the purchase of a complete hot water tank is dispensable.
  • the closure unit 7 is arranged perpendicular to the longitudinal axis 10 of the bypass 3, so as to achieve an effective response speed in case of failure. Consequently, the increased pressure in the tank 4 can be quickly detected, and the membrane 22 of the closure unit 7 can break immediately.
  • Fig. 2a and Fig. 2b show a possible embodiment of the closure unit with a membrane according to the present invention.
  • the closure unit 7 has a holding frame 20, which is annular in this embodiment of the invention.
  • a membrane 22 is clamped, which can be produced together with the holding frame 20 in a two-component injection molding process.
  • the membrane 22 may be made of a thermoplastic elastomer TPE, wherein the holding frame 20 is made of a plastic.
  • the holding frame 20 thus corresponds to the hard component.
  • the closure unit 7 is designed as a module which is non-positively insertable into the holder 9 of the relief bypass.
  • the rubber-elastic membrane 22 can tear in the event of overpressure in the water tank 4 and thus the cold water can flow through the bypass 3 to the outlet nozzle, so that the tank 4 or hot water tank can not be destroyed.
  • the closure unit 7 has a ring seal 21 which blocks the flow of water to the outlet connection 8.
  • the membrane 22 is intact and would rupture after the water pressure on the membrane surface exceeds a predetermined value.
  • This value can for example be preset by the wall thickness or the contour of the TPE material of the membrane.
  • the holder 9 is formed integrally with the tank 4. Consequently, the closure unit 7 can be easily replaced after the membrane 7 bursts.
  • a hot water tank in particular an open hot water tank, for providing hot water, with a tank for storing the hot water, with an inlet nozzle for supplying cold water into the tank and with a spout for removing the hot water from the tank, wherein between the inlet nozzle and the discharge nozzle, a pressure relief device is formed, which counteracts a bursting of the tank or container of the hot water tank in case of failure.

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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)
  • Details Of Fluid Heaters (AREA)

Claims (10)

  1. Chauffe-eau électrique à accumulation (1), notamment un chauffe-eau ouvert à accumulation, destiné à fournir de l'eau chaude, comprenant un réservoir (4) pour le stockage de l'eau chaude, comprenant une tubulure d'arrivée (6) pour l'amenée d'eau froide dans le réservoir (4), comprenant une tubulure de sortie (8) pour le prélèvement de l'eau chaude hors du réservoir (4), et comprenant un dispositif de décharge de la pression (2), le dispositif de décharge de la pression (2) étant réalisé de manière à fournir une liaison fluidique entre la tubulure d'arrivée (6) et la tubulure de sortie (8) pendant une décharge de la pression, le dispositif de décharge de la pression (2) comprenant un by-pass de décharge (3), et le dispositif de décharge de la pression (2) comprenant une unité de fermeture (7), caractérisé en ce que l'unité de fermeture (7) comprend une membrane (22), la surface de membrane (23) définie par la membrane (22) s'étendant perpendiculairement à un axe longitudinal (10) du by-pass de décharge (3).
  2. Chauffe-eau à accumulation (1) selon la revendication 1, caractérisé en ce que ..... est disposé à l'intérieur du by-pass de décharge (3) du dispositif de décharge de la pression (2).
  3. Chauffe-eau à accumulation (1) selon la revendication 1, caractérisé en ce que le by-pass de décharge (3) présente une attache (9) pour l'unité de fermeture (7).
  4. Chauffe-eau à accumulation (1) selon la revendication 3, caractérisé en ce que l'attache (9) et le by-pass de décharge (3) sont réalisés de manière intégrale.
  5. Chauffe-eau à accumulation (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que la membrane (22) de l'unité de fermeture (7) est réalisée pour se déchirer en cas de décharge de la pression.
  6. Chauffe-eau à accumulation (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que la membrane (22) comprend une matière élastique, notamment un élastomère thermoplastique TPE.
  7. Chauffe-eau à accumulation (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que la membrane (22) est fixée à un cadre de maintien (20) de l'unité de fermeture (7) au moyen d'un procédé à deux composants.
  8. Chauffe-eau à accumulation (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que l'unité de fermeture (7) comprend un joint (21).
  9. Chauffe-eau à accumulation (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que l'unité de fermeture (7) est réalisée de manière interchangeable par un utilisateur.
  10. Chauffe-eau à accumulation (1) selon l'une quelconque des revendications précédentes 3 à 9, caractérisé en ce que l'attache (9) est réalisée pour l'unité de fermeture (7) et en ce que le by-pass de décharge est réalisé de manière intégrale à l'intérieur et/ou sur le réservoir (4).
EP12197561.9A 2011-12-21 2012-12-17 Accumulateur d'eau chaude avec dispositif de décharge de pression Not-in-force EP2607811B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011089447A DE102011089447A1 (de) 2011-12-21 2011-12-21 Warmwasserspeicher mit Druckentlastungseinrichtung

Publications (3)

Publication Number Publication Date
EP2607811A2 EP2607811A2 (fr) 2013-06-26
EP2607811A3 EP2607811A3 (fr) 2015-12-23
EP2607811B1 true EP2607811B1 (fr) 2017-03-15

Family

ID=47594391

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12197561.9A Not-in-force EP2607811B1 (fr) 2011-12-21 2012-12-17 Accumulateur d'eau chaude avec dispositif de décharge de pression

Country Status (2)

Country Link
EP (1) EP2607811B1 (fr)
DE (1) DE102011089447A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108613372A (zh) * 2018-06-15 2018-10-02 骆德育 一种带承压水箱保护装置的承压储水热水器
CN108759095A (zh) * 2018-06-15 2018-11-06 骆德育 一种承压水箱保护装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018115980A1 (de) * 2018-07-02 2020-01-02 Truma Gerätetechnik GmbH & Co. KG Frostschutzvorrichtung für Wasserversorgungsvorrichtung in Freizeitfahrzeugen
DE202019001248U1 (de) * 2019-03-15 2020-06-19 Gebr. Kemper Gmbh + Co. Kg Vorrichtung zur Druckentlastung eines Wassersystems und Anschlussmodul mit einer solchen Vorrichtung
CN113310220B (zh) * 2021-06-02 2022-09-20 常州工业职业技术学院 一种零冷水控制***、控制方法及可读存储介质

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2210555A (en) * 1934-12-12 1940-08-06 Podolsky Jacob Boiler relief device
CH362823A (de) * 1957-03-22 1962-06-30 Siemens Ag Sicherungseinrichtung für Warmwasserspeicher in Überlaufform
US4607615A (en) * 1985-03-28 1986-08-26 Boals Wayne S Automatic control system for water heaters
DE19501320A1 (de) * 1995-01-18 1996-07-25 Forbach Gmbh Offener Warmwasserspeicher
US6021808A (en) * 1998-01-21 2000-02-08 Dulac; Lawrence M. Fluid supply shut off valve system and fluid monitoring device for use with same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108613372A (zh) * 2018-06-15 2018-10-02 骆德育 一种带承压水箱保护装置的承压储水热水器
CN108759095A (zh) * 2018-06-15 2018-11-06 骆德育 一种承压水箱保护装置
CN108759095B (zh) * 2018-06-15 2023-08-25 骆德育 一种承压水箱保护装置

Also Published As

Publication number Publication date
EP2607811A2 (fr) 2013-06-26
DE102011089447A1 (de) 2013-06-27
EP2607811A3 (fr) 2015-12-23

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