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Hot water unit

A technology of water heaters and waterways, applied in household heating, heating methods, household heating, etc., can solve the problems of mutual influence and chemical reaction between hard materials and nursing materials, and achieve the purpose of improving and prolonging the life of appliances Effect

Inactive Publication Date: 2009-12-30
BSH BOSCH & SIEMENS HAUSGERAETE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] If now water hardness-reducing substances and care substances that modify the subjective perception of water are added using fine metering dosers, there is the danger that the hardness-reducing substances and care substances influence each other or react chemically with each other

Method used

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  • Hot water unit

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Embodiment Construction

[0028] In the following description of preferred embodiments of the invention, the same reference numerals designate the same or similar components.

[0029] figure 1Shown is a water heater 1 with at least one water inlet pipe 2 a , at least one water outlet pipe 3 , at least one heating device 4 , at least one wall connection 5 and a consumption point 6 . Before reaching the water heater 1 , the water flows laterally through the device 7 for metering additional material at the wall connection 5 . With the aid of this device 7 for metering, different substances can be dosed to the water as required in order to chemically change the quality of the water. The water into which the mixture is incorporated reaches the heating element 4 within the water heater 1 . There the water is heated and flows through the outlet pipe 3 to the filter device 8 . From the filtration device 8 the water reaches the point of consumption 6 . A second device 10 for metering additional material is ...

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Abstract

The invention relates to a hot water unit (1) with a water line, comprising at least one water inflow (2), which leads from a wall connection (5) to the hot water unit (1), and at least one water outflow (3), which leads from the unit to a water discharge point (6), and at least one heating device (4) positioned between said water inflow (2) and water outflow (3), wherein the hot water unit (1) has, at its water inflow (2), at least one means for dosing (7) additives for chemically changing the water quality. The hot water unit (1) according to the invention is characterized in that at least one second means (10) for dosing additives for chemically changing the water quality is arranged in the water line. The hot water unit (1) according to the invention permits, in an effective manner and at low cost, a level of water quality which meets increased consumer demands, while the unit at the same time has a longer service life.

Description

technical field [0001] The invention relates to a water heater. Background technique [0002] Various types of domestic water heaters are known in the prior art, such as continuous flow water heaters, hot water storage or small water heaters. All these utensils have a common problem that they have a tendency to calcify inside the utensil, which is caused by the water hardness present in the hot water. Water hardness can be described as the accumulation of alkaline earth metal ions decomposed in water. Water hardness consists of temporary or carbonate hardness and permanent hardness. Hydrogen carbonates present in water form insoluble calcium or magnesium carbonates with calcium or magnesium ions. These deposits form especially on heat sources such as heating elements and lead to overheating over the long term and can damage these elements. The so-called non-carbonate hardness, or permanent hardness, is caused by anions such as chlorides and sulfates, is formed independen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F5/08C02F103/42
CPCC02F1/68E03C1/046C02F5/08C02F1/685C02F2209/055C02F2209/005C02F1/42C02F2209/40C02F1/001C02F1/283F24D19/0092C02F2103/42C02F1/44
Inventor M·海尔梅尔H·库斯塔特舍K·雷伯格
Owner BSH BOSCH & SIEMENS HAUSGERAETE GMBH
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