EP2336653A2 - Transmission de pression dans un collecteur d'eau potable - Google Patents

Transmission de pression dans un collecteur d'eau potable Download PDF

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Publication number
EP2336653A2
EP2336653A2 EP10194078A EP10194078A EP2336653A2 EP 2336653 A2 EP2336653 A2 EP 2336653A2 EP 10194078 A EP10194078 A EP 10194078A EP 10194078 A EP10194078 A EP 10194078A EP 2336653 A2 EP2336653 A2 EP 2336653A2
Authority
EP
European Patent Office
Prior art keywords
water
pressure
pressurized
service
hot 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.)
Withdrawn
Application number
EP10194078A
Other languages
German (de)
English (en)
Inventor
Gerald Holtz
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 EP2336653A2 publication Critical patent/EP2336653A2/fr
Withdrawn legal-status Critical Current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
    • F24D17/00—Domestic hot-water supply systems
    • F24D17/0026—Domestic hot-water supply systems with conventional heating means
    • F24D17/0031—Domestic hot-water supply systems with conventional heating means with accumulation of the heated water

Definitions

  • the invention relates to a method for service water supply, in particular for providing a pressurized service water, according to the preamble of claim 1.
  • the invention relates to a pressure device for a service water supply, in particular for a service water supply with a water heater, according to the preamble of claim 4th
  • the invention relates to a service water supply device for the provision of pressurized service water according to the preamble of claim 9.
  • service water supply facilities are known in which a centralized service water storage is designed as an accumulator.
  • This accumulator is made of a material that withstands pressure loads of up to 10 bar.
  • the invention has for its object to build a water heater easier and cheaper.
  • the invention has for its object to provide a method, a pressure device and a service water supply device in which the hot water tank is exposed to lower pressures, without thereby resulting in a reduced pressure to a consumer when used.
  • the process according to the invention for service water supply comprising the steps of supplying a pressurized cold water, heating the cold water and providing a pressurized hot water, characterized in that the pressure of the supplied pressurized cold water is reduced before heating.
  • a pressure reduction of the supplied cold water upstream of an inlet into the process water reservoir is carried out at a point upstream of an inlet into a process water reservoir for storing and / or providing a service water, that is to say a hot water.
  • the pressure of the heated, pressure-reduced cold water is increased after the heating. After the pressure reduction and before heating, the cold water has a reduced pressure. With the reduced pressure, the cold water is heated to a desired temperature for the hot water. Only after heating the pressure of the hot water is increased to provide a corresponding pressurized hot water at the user.
  • the pressure reduction and the pressure levels take place outside of the hot water tank.
  • the pressure of the supplied, pressurized cold water is transferred to the provided, pressure-reduced hot water.
  • the transfer of the pressure takes place in one version directly.
  • the pressure is transferred from the pressurized cold water directly via the pressure device to the pressure-reduced hot water. In between, the water is heated with reduced pressure.
  • the transfer of the pressure takes place indirectly, that is via temporary storage and / or delayed.
  • the pressure device according to the invention for a service water supply in particular for a service water supply with a water heater, comprising a water supply unit, is supplied to the pressurized water, and a water discharge unit, is discharged at the pressurized water, characterized in that a pressure transmission device is provided, which is a pressure reducer to reduce the pressure of the supplied, pressurized water before delivery to the hot water discharge unit.
  • the pressure reduction is preferably carried out in the feed before a water heater.
  • the pressure transmission device has a pressure booster in order to reduce the pressure of the reduced pressure water before delivery by the water delivery unit.
  • the pressure increase is preferably carried out in the discharge direction behind the hot water tank.
  • An embodiment of the printing device according to the invention further provides that the pressure reducer is coupled to the Drucker Eckr to transfer the pressure of the supplied water to the heated, pressure-reduced water.
  • the transmission is preferably direct.
  • the transfer takes place with a time delay and / or after a buffering of the pressure in a corresponding pressure accumulator.
  • a further advantageous embodiment of the present invention provides that the pressure transmission device has at least two cylinders, which are connected via a double-acting piston and / or two oppositely connected pistons, for pressure transmission.
  • a further embodiment of the present invention provides that a line system is provided with adjusting elements for an inflow and outflow of the water.
  • the hot water supply device for the provision of pressurized service water, comprising a cold water supply for supplying pressurized cold water, a hot water discharge for providing pressurized hot water, a water storage for storing domestic water and a heating unit for heating stored in the water storage process water, characterized in that at least a printing device according to the invention is provided.
  • the water reservoir is designed as a pressureless water storage.
  • the DHW cylinder does not have to withstand increased pressure conditions due to pressure reduction, it can be designed in any geometric design (square, triangular, etc.).
  • the storage walls do not need z.
  • the pressure transmission allows the simplest designs, especially for very large volume storage. Because when storing with very large volume, the high water pressure is a particular problem, due to the high load on the storage walls.
  • the solution according to the invention allows the use of any container as a hot water tank, if the container is made of drinking water suitable material. Due to the fact that the storage walls do not have to be made of steel, the water storage tank can be produced more cheaply and easily.
  • a hot water supply device 100 according to the invention with a pressure device 10 according to the invention is shown.
  • Fig. 1 schematically shows the structure of the service water supply device 100 with the printing device 10.
  • the service water supply device 100 is designed to provide pressurized hot water WW and includes a cold water supply 2 for supplying pressurized cold water KW, a hot water discharge 3 for providing pressurized hot water WW, a water storage 1 for storing of domestic water BW and a heating unit EW for heating stored in the water tank 1 domestic water BW.
  • the pressure device 10 is designed for a service water supply, in particular for a service water supply with a hot water tank 1.
  • the pressure device 10 comprises a water supply unit or a cold water supply 2, with which pressurized (cold) water KW is supplied, and a water discharge unit or the hot water discharge 3, is discharged at the pressurized (hot) water WW. Further, a pressure device 10 is provided which has a pressure reducer to reduce a pressure p0 of the supplied pressurized water KW to a low pressure p1 before discharge by the hot water discharge unit 3.
  • a pressure reducer to reduce a pressure p0 of the supplied pressurized water KW to a low pressure p1 before discharge by the hot water discharge unit 3.
  • the Fig. 2a to 2e show schematically in cross-sectional view an embodiment of the printing device 10 in five different states.
  • the pressure device 10 comprises two pistons 12b, 12, which are interconnected by means of a linkage 12a.
  • the pistons 12b, 12c are each arranged in a cylinder 13, in which they move freely from left to right and from right to left.
  • the pressure device 10 comprises a line system 14. Via the line system 14 and the pistons 12b, 12c, water is led away as a liquid medium to the service water storage 1 and away from the service water storage 1 to taps 3a.
  • the piston 12b is pressurized with the cold water KW on a cold water side. This is effected via corresponding adjusting elements 15 on the cold water side.
  • This pressure p0 is transmitted to the hot water side piston 12b due to the fact that the two pistons 12b, 12c are interconnected by a linkage 12a.
  • the piston 12b transmits the pressure p0 (about 3 bar) to the hot (service or hot) water present there, which flows to the taps 3a.
  • the pressurized cold water KW flows into only the right part of the cylinder 13a.
  • the cold water KW in the left part of the cylinder 13 a is pressed due to the fact that the piston 12 a moves to the left without pressure in the hot water tank 1.
  • hot water WW flows without pressure from the hot water tank 1 in the right part of the hot water side cylinder 13b.
  • check valves 15a formed adjusting elements 15 prevent the hot under pressure (3 bar) standing water WW can flow into the hot water tank 1 on the one hand and further passes into the part of the cylinder 13b, which is depressurized.
  • the pistons 12a, 12b move simultaneously from right to left, and the right part of the cylinder 13a is thus charged with pressurized cold water, and the left part of the cold water cylinder 12a is discharged into the service water reservoir 1.
  • the hot water cylinder 13b turn the left, pressurized part of the cylinder 13b is discharged and the right part is loaded with hot water from the hot water tank 1 without pressure.
  • the process is reversed by opening and closing the flow paths of the cold water by means of the adjusting elements 15 in the pressure transmission.
  • the flow path for the under pressure (3 bar) standing cold water KW is closed in the right part of the cylinder 13a.
  • the flow path for the pressurized cold water KW is opened in the left part of the cylinder 13a.
  • the left part of the cylinder 13a is under pressure and the right part is depressurized.
  • FIG. 3 schematically shows in a cross-sectional view of the service water supply with a second embodiment of the printing device 1.
  • the printing device 1 comprises four cylinders 13 each having a piston 12b, 12c. Each piston 12b, 12c is thus located in a separate cylinder 13.
  • the principle of pressure transmission does not change here; it is analogous to the method described above.
  • the two cold water side pistons 12b are each connected via a linkage 12a to the corresponding hot water side piston 12c.
  • the linkage 12a are also connected to each other via a transverse strut 12d.
  • the adjusting elements 15 cause the same supply and discharge of water, as described above.

Landscapes

  • 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)
  • Devices For Dispensing Beverages (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
EP10194078A 2009-12-09 2010-12-08 Transmission de pression dans un collecteur d'eau potable Withdrawn EP2336653A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200910057628 DE102009057628A1 (de) 2009-12-09 2009-12-09 Druckübertragung bei einem Brauchwasserspeicher

Publications (1)

Publication Number Publication Date
EP2336653A2 true EP2336653A2 (fr) 2011-06-22

Family

ID=43795198

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10194078A Withdrawn EP2336653A2 (fr) 2009-12-09 2010-12-08 Transmission de pression dans un collecteur d'eau potable

Country Status (2)

Country Link
EP (1) EP2336653A2 (fr)
DE (1) DE102009057628A1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3742603A1 (de) * 1987-12-16 1989-06-29 Grohe Armaturen Friedrich Vorrichtung zum volumenausgleich bei ueberlaufwarmwasserspeicher
AT395212B (de) * 1988-05-10 1992-10-27 Vaillant Gmbh Warmwasserspeicher
AT397855B (de) * 1988-11-10 1994-07-25 Vaillant Gmbh Beheizbarer warmwasserspeicher

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Also Published As

Publication number Publication date
DE102009057628A1 (de) 2011-06-16

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