Beverage preparation device with in-line scale removal system and descaling method using such system

A technology for beverage preparation and equipment, which is applied in the field of automatically removing limestone scale in beverage preparation equipment, and can solve the problems of difficulty in controlling the scale removal agent and the effective amount of flushing liquid, etc.

Inactive Publication Date: 2011-02-23
NESTEC SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Another problem is that it is difficult to control t...

Method used

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  • Beverage preparation device with in-line scale removal system and descaling method using such system
  • Beverage preparation device with in-line scale removal system and descaling method using such system
  • Beverage preparation device with in-line scale removal system and descaling method using such system

Examples

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Embodiment Construction

[0049] figure 1 Shown is a beverage preparation device such as a coffee machine 1 comprising the main components forming a fluid circuit 2 and a built-in descaling system 3 according to the principles of the invention. The machine generally includes a water supply, which may be a water reservoir 4 . The water reservoir is in fluid communication with the water delivery means, ie the pressure pump 5 , via the first part 6 of the hose. The pump itself is in downstream fluid communication with an inline heating element such as a thermoblock 7 . The pump 5 and the heat block 7 may be joined together by a second portion 8 of hose. A flow meter 50 may be provided in the fluid circuit to detect the flow of liquid circulating in the circuit. Downstream of the thermoblock 7 there is provided a beverage production module 9 which receives heated water from the thermoblock via a third portion 10 of the hose. A control unit 11 is provided to control the switching of the pump and the the...

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PUM

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Abstract

Beverage preparation machine comprising : a fluid circuit (2) comprising a water reservoir (4), a water pump (5), a heating means (7), a beverage producing module (9), which are fluidically connected for circulating water from the reservoir to the beverage producing module, wherein an in-linedescaling system (3) is provided in the fluid circuit(2)comprising a dedicated compartment (15) intended for receiving a predetermined dose of a water soluble/dispersible descaling agent (19). The invention also relates to a method for automatically descaling and rinsing the fluid circuit (2).

Description

technical field [0001] The present invention relates to a beverage preparation machine designed with a descaling system for removing limestone scale deposited on fluid contact surfaces of the machine. The invention also relates to a method for automatically removing limestone scale in beverage preparation equipment using the system. Background technique [0002] A well known problem with any beverage preparation device having an integrated heater such as a thermoblock or heating cartridge is the tendency to deposit limestone scale on contact surfaces heated / heated using circulating water or steam. Scale mainly comes from water-insoluble solids, that is, calcium carbonate formed by the interaction and precipitation of calcium ions and carbonate ions. Deposition increases in hot water because calcium carbonate is less soluble in hot water than in cold water. The extent of deposition of calcium carbonate solids can therefore depend on the level of these ions in the water, als...

Claims

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Application Information

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IPC IPC(8): A47J31/60
CPCA47J31/60
Inventor C·S·布瑟马尔
Owner NESTEC SA
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