DE3320065A1 - Kettle or the like for domestic purposes - Google Patents

Abstract

According to the invention, the kettle or the like is provided with an apparatus for removing the harmful salts from the water for domestic cooking or drinking purposes, in particular nitrates or oxalates.

Description

Kettle or the like for household purposes

Description: The invention relates to a kettle od. Like. For household purposes. Below are all kinds of for ingestion, heating and / or cooking for drinking purposes or the preparation of food or beverages certain household water containers, i.e. apart from household water boilers e.g.

also household water dispenser, furthermore also other household cookware For taking up and preparing food with cooking liquid such as household pots or pans understood.

It is known that the water used in the household can be boiled and / or For drinking purposes, due to the environmental pollution, in particular, considerable amounts of pollutants contains harmful salts, including nitrates and oxalates. Nitrates For example, nitrites can turn into nitrites in the human body convert to nitrosamines. The latter are considered carcinogens for human health especially dangerous. In some cases, groundwater already has more than the permissible concentrations of nitrates. Oxalates are also undesirable in human diet.

It is known per se to soften industrial water for technical purposes or desalinate. Also the seawater desalination for the production of fresh water is known. The systems provided for this are complex and expensive.

The object of the present invention is to provide precautionary or

Take protective measures in an effective manner and with little Expenditure on human exposure to pollutants, especially nitrates and / or to prevent oxalates in cooking and / or drinking water.

This object is achieved according to the invention in that one has a kettle Od. Like. For household purposes of the type mentioned with a device for Removal of harmful salts from water, especially nitrates and / or oxalates.

This solution has the advantage that inevitably that too only that water that is used for drinking or cooking, i.e. by the consumer drunk or used in the preparation of the food and thereby possibly is also partly consumed with the food, of harmful salts, So in particular from the harmful nitrates, oxalates or the like. Is freed. The specially designed and used desalination device can therefore limit to these capacities. Not all of the water used in the household needs to go through the desalination device, which would be unprofitable.

The advantages of applying the inventive concept to drinking water are obvious.

The removal of harmful salts such as nitrates or the like.

from cooking water to be used for the preparation of food Has the advantage that the food to be cooked with such desalinated water its harmful salts due to the higher salt concentration gradient, like nitrates, can give off to the water or the cooking liquid, whereby the Content of harmful salts in the food is reduced. It can be useful for cooking not only freed from harmful salts right from the start To use water, but also during the cooking process of the cooking liquid constantly withdrawing harmful salts such as nitrates. Even if so the cooking liquid, which after the. Invention of harmful salts, such as nitrates, are withdrawn, not consumed, the measure according to the invention has an effect In this way, it is advantageous that the food to be cooked has lower amounts of salt pollutants having.

In a special water desalination to be carried out according to the invention there will also be a risk of accumulation of harmful salts, such as nitrates, even if in individual components of the food, the water or the cooking liquid Tolerance values are not exceeded, reduced. The application of the inventive concept In the case of cooking water, the overall result is a reduction in the pollution of the food and optionally the cooking liquid such as sauce.

The desalination device can, for example, be in the inlet opening or the outlet opening or in the water receiving space of the kettle or the like. be arranged.

It is also possible to use the desalination device in a continuous or to arrange a circulating flow of water, e.g. when it is heated.

A distinction can therefore be made between a batch process in e.g. Kettle, tea kettle or saucepan and a continuous process, e.g. with a cooking water dispenser.

While in the batch process, the circulating flow of the water or the Cooking liquid is only possible due to the thermal change continuous process e.g. a boiling water dispenser a partial flow of the water constant also through thermal change or through the addition of mechanical Energy, e.g. in the form of a pump.

The desalination device may preferably be a filter such as an adsorption filter and / or have membrane filters. However, activated carbon is also used as an adsorption filter Filter paper or

like. To be considered. The desalination takes place by means of a membrane filter e.g. through reverse osmosis.

It is also possible to use the desalination device, for example to equip an ion exchanger.

The desalination device can in a further embodiment of the Idea of the invention for denitrification, e.g. microorganisms fixed on membranes and / or have enzymes.

In a simple embodiment, the desalination device has Invention the form of an exchangeable solid body or liquid or vapor permeable Container that is in the water receiving space, an inlet opening or an outlet opening is arranged.

The desalination device can, for example, be an insert or plug-in body in the form of a cuboid, cylinder, bowl, bag, cartridge or Like. Be designed The single figure illustrates the inventive concept on the basis of a kettle in section.

A desalination device is located in the water receiving space 3 of a water boiler 1 2 arranged in the form of an interchangeable cuboid body, which is supported by a removable cover 4 can be inserted into the inside of the boiler and qeqen a new bodies can be exchanged, for example for water softening is known per se.

Just like with a kettle or other water dispenser the idea of the invention can also be applied to a saucepan, for example, about the water entered there for the preparation of food or the water from it resulting cooking liquid and thus also the food itself during cooking to remove harmful salts, such as nitrates or oxalates in particular.

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Claims (8)

Kettle or the like for household purposes Claims: 1. Kettle od. The like. For household purposes, characterized rc h a device for removal the harmful salts of water, especially nitrates and / or Oxalates. 2. kettle or the like according to claim 1, characterized in that that the desalination device is arranged in its inlet or outlet opening. 3. kettle or the like according to claim 1 or 2, characterized in that that the desalination device in a continuous or circulating stream of the water, e.g. when it is heated. 4. Kettle od. The like. According to any one of claims 1 to 3, characterized characterized in that the desalination device includes a filter such as an adsorption filter and / or membrane filter. 5. Kettle od. The like. According to any one of claims 1 to 4, characterized characterized in that the desalination device has an ion exchanger. 6. Kettle od. The like. According to any one of claims 1 to 5, characterized characterized in that the desalination device is used for denitrification e.g. on membranes has fixed microorganisms and / or enzymes. 7. Kettle od. Like. According to one of claims 1 to 6, characterized characterized in that the desalination device is in the form of a replaceable fixed Body or liquid and / or vapor permeable container in the water receiving space, an inlet opening or outlet opening is arranged. 8. Kettle od. The like. According to one of claims 1 to 7, characterized characterized in that the desalination device as an insert or plug-in body in the form of a cuboid, cylinder, sphere, bag, cartridge or Like. Is designed for the water receiving space.