EP0569732B1 - Chauffe-eau à gaz - Google Patents

Chauffe-eau à gaz Download PDF

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Publication number
EP0569732B1
EP0569732B1 EP93106194A EP93106194A EP0569732B1 EP 0569732 B1 EP0569732 B1 EP 0569732B1 EP 93106194 A EP93106194 A EP 93106194A EP 93106194 A EP93106194 A EP 93106194A EP 0569732 B1 EP0569732 B1 EP 0569732B1
Authority
EP
European Patent Office
Prior art keywords
valve
heat exchanger
connection
flow
water
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.)
Expired - Lifetime
Application number
EP93106194A
Other languages
German (de)
English (en)
Other versions
EP0569732A1 (fr
Inventor
Manfred Dipl.-Ing. Oehrlein (Fh)
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0569732A1 publication Critical patent/EP0569732A1/fr
Application granted granted Critical
Publication of EP0569732B1 publication Critical patent/EP0569732B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
    • F24D19/1015—Arrangement or mounting of control or safety devices for water heating systems for central heating using a valve or valves
    • F24D19/1021—Arrangement or mounting of control or safety devices for water heating systems for central heating using a valve or valves a by pass valve

Definitions

  • the invention is based on a gas-heated water heater according to the preamble of the main claim.
  • the amount of water circulating in the heating network is dependent on the flow characteristics in the heating network, which are influenced, for example, by thermostatic valves on the radiators, which increasingly reduce the passage cross-sections for the water as the heat requirement decreases. Without additional measures, this would lead to increased, disturbing flow noises and possibly also to high post-heating of the water in the heat exchanger and to an efficiency-reducing short-cycle operation of the device.
  • the overflow valve is a non-return valve with a fixed valve seat on a valve passage to the bypass and one slidably guided valve body, which is acted upon by the water pressure in the flow line against a closing spring force and lifts off the valve seat when the water pressure exceeds a predetermined value.
  • the arrangement according to the invention with the characterizing features of the main claim has the advantage that the overflow valve is a purely fluidic component that works exclusively due to flow effects, has no moving parts subject to wear and is insensitive to contamination.
  • the swirl chamber valve is installed with its tangential inlet and the axial outlet in the inlet line of the internal line system leading from the heat exchanger to the inlet connection. This ensures that the heat exchanger is also included in the internal short-circuit circuit controlled by the swirl chamber valve, so that increased post-heating or an efficiency-reducing short-cycle operation of the gas burner with increased flow resistance in the heating network is avoided.
  • FIG. 1 shows a hot water central heating system with a water heater according to the first exemplary embodiment
  • FIG. 2 shows in perspective the swirl chamber valve of the water heater according to FIG. 1
  • FIG. 3 shows a water heater according to the second exemplary embodiment.
  • the central heating system according to FIG. 1 has a water heater 10 surrounded by a dash-dotted line, which is provided with a gas burner 12 as a heating source.
  • a gas burner 12 Arranged above the gas burner 12 is a heat exchanger 14 which is acted upon by the combustion gases and which consists of a lamellar block with a water pipe coil 16 passed through it. This is inserted into an internal line system of the water heater 10, which connects a return connection 18 for an external heating network 20 to a flow connection 22.
  • the heating network 20 leads over a plurality of radiators 24 connected in parallel to one another, each of which is controlled by a thermostatic valve 26.
  • the internal line system of the water heater 10 has a first return line 28 which leads from the return connection 18 to the suction connection of a circulation pump 30.
  • the pressure connection of the circulation pump 30 is connected via a second return line 32 to the input of the heat exchanger 14, the output of which is connected via a first flow line 34 to the inlet connection 36 of a swirl chamber valve 38.
  • Swirl chamber valve 38 has two outlet ports 40, 42, one of which, 40, is connected to the flow connection 22 via a second flow line 44.
  • the other outlet connection 42 is connected via a bypass line 46 to the first return line 28 or to the suction side of the circulation pump 30.
  • the swirl chamber valve 38 which in the present context performs the function of an overflow valve, is shown in more detail in FIG. 2 of the drawing.
  • the valve has a circular cylindrical swirl chamber 50, into which the inlet connection 36 opens tangentially.
  • the outlet connector 40 opens out of the swirl chamber 50 at a central point.
  • the second, radially extending outlet connection 42 is attached to the swirl chamber 50 in addition to the mouth of the inlet connection 36.
  • the swirl chamber valve 38 works as follows: If there is a high heat requirement, that is to say when the thermostatic valves 26 are open and therefore low flow resistances in the heating network 20, a large amount of water can flow out of the valve to the flow connection 22.
  • the amount of water flowing tangentially into the swirl chamber 50 via the inlet connection 36 can build up a strong flow vortex 52, indicated in FIG. 2 by the dashed line, in this and in the axial outlet connection 40. This is able to shut off the radial outlet connection 42 almost completely, so that almost no water can flow back through the bypass line 46 to the suction side of the circulation pump 30.
  • the water heater according to FIG. 3 essentially corresponds to the device according to FIG. 1, so that the functionally identical parts are provided with the same reference numbers in both figures.
  • the swirl chamber valve 38 is inserted into the return line 32 between the circulating pump 30 and the heat exchanger and the heat exchanger 14 is connected to the flow connection 22 via a continuous flow line 56.

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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)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
  • Fluid-Driven Valves (AREA)

Claims (2)

  1. Chauffe-eau à gaz comprenant un branchement de colonne montante (22) et un branchement de retour (18) pour un circuit de chauffage à eau chaude (20) et un circuit de conduite interne reliant les deux branchements, comprenant un échangeur de chaleur (14), une pompe de circulation (30) et un clapet de débordement, commandant l'un des deux branchements du réseau de chauffage (20) et, le cas échéant également, la dérivation (46) court-circuitant l'échangeur de chaleur, après indication de la perte de charge dans le réseau de chauffage (20), caractérisé en ce que le clapet de débordement est en forme de clapet à chambre à tourbillon (38) ayant une entrée tangentielle (36) et une sortie axiale (40) montées dans un segment (32, 16, 34, 44) ou (32, 16, 56), reliant le côté de pression de la pompe de circulation (30) au branchement de colonne montante (22) du circuit interne, et dont la sortie radiale (42) est reliée au côté aspiration de la pompe de circulation (30) par la dérivation (46).
  2. Chauffe-eau selon la revendication 1, caractérisé en ce que l'entrée tangentielle (36) et la sortie axiale (40) du clapet à chambre à tourbillon (38) sont montées dans la colonne montante (34, 44) reliant l'échangeur de chaleur (14) au branchement de colonne montante (24) dans le système de conduite interne.
EP93106194A 1992-05-15 1993-04-16 Chauffe-eau à gaz Expired - Lifetime EP0569732B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4216069A DE4216069A1 (de) 1992-05-15 1992-05-15 Gasbeheizter Wassererhitzer
DE4216069 1992-05-15

Publications (2)

Publication Number Publication Date
EP0569732A1 EP0569732A1 (fr) 1993-11-18
EP0569732B1 true EP0569732B1 (fr) 1995-12-13

Family

ID=6458951

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93106194A Expired - Lifetime EP0569732B1 (fr) 1992-05-15 1993-04-16 Chauffe-eau à gaz

Country Status (3)

Country Link
EP (1) EP0569732B1 (fr)
DE (2) DE4216069A1 (fr)
ES (1) ES2081158T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106482353A (zh) * 2016-11-18 2017-03-08 广东万家乐燃气具有限公司 一种热水器及其冲浪模式洗浴控制方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1547210A (fr) * 1966-12-30 1968-11-22 Bendix Corp Valve à fluide tourbillonnaire
CH666111A5 (de) * 1985-04-29 1988-06-30 Landis & Gyr Ag Heizungsanlage mit einem kondensationskessel.

Also Published As

Publication number Publication date
ES2081158T3 (es) 1996-02-16
EP0569732A1 (fr) 1993-11-18
DE4216069A1 (de) 1993-11-18
DE59301141D1 (de) 1996-01-25

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