DE202009000591U1 - Aqua Ofenbox - Google Patents

Abstract

Aqua furnace box, consisting of a cuboid flat housing, a lamellar water heat exchanger is arranged obliquely in the housing and the finned water heat exchanger via a flow and return line to a hot water system (heating or service water) can be connected, in which the finned water heat exchanger is flowed through by a stream of hot air, which is generated by a blower.

Description

The The invention relates to an aqua furnace box and a furnace according to the claims 1 and 5.

An Aqua-Ofenbox is for example from the DE 30 1 751 A1 known. An oven with a warm air jacket is out of the DE 18 71 346 U known.

furnaces or stoves from the prior art often have no Water heating and can be just with stoves often only heat one room in one floor. You can no hot water for showering or bathing produce, let alone Water heating energy for heating radiators, floor, Wall heaters, etc. supply.

The Aqua oven box as a retrofit kit, of course for new stoves without water heating, is Can be used at any time as it can be pre-assembled at the factory. The Aqua-Ofenbox sucks the hot air, which is in the warm air jacket or convective jacket or in the warm air chamber, over a special blower (fan) and presses or guides them through a lamellar water heat exchanger, which cools the hot air and converts it into water heating power, back in the stove.

The generated water heating power can directly into the return an existing central heating system (oil, gas, pellets, etc.) be fed and thus causes a return increase and supporting domestic water production of the plant. The won water heating power can also directly for industrial water and / or for direct connection for several z. B. radiator or other customers are used, and this without the otherwise DIN required safety devices, such as safety heat exchangers, thermal drain safety device, buffer tank, fresh water line and direct connection to a drain, etc.

The described blower is via a thermostat controlled, the first at an existing temperature of 40 ° C. the blower turns on in the convection jacket, when it falls below turns off the fan, so when not firing the Stove automatically the Aqua-Ofenbox out of service is set.

The Thermostatically controlled blower pushes the warm Air through the lamellar water heat exchanger up to max. 80 ° C Temperature on the suction side and leads the cooled Air recirculated air back into the convection jacket (warm air jacket) of the oven. With approx. 80-grained intake air, the return air temperature is at about 50 ° -60 ° C, depending on the size the finned heat exchanger, which is usually 2- or 3-row. At higher intake temperature, z. B. over 80 ° C switches the thermostat-controlled fan and it can therefore no higher water temperature come, let alone the generated heating water is over 80 ° C warm. Thus, the heating water temperature never becomes reach the boiling point range, ie around 100 ° C or in the range of the "cooking temperature".

Of the Lamella water heat exchangers can usually be made of aluminum fins at a small distance of about 2 mm to 3 mm and copper snakes with Diameter of 8 mm to 12 mm exist. Due to the small distances the slats achieve a large absorber area, up to 80% of the stated heating capacity of a stove in Water heating capacity converts.

Should the stove usually have 8 KW heating power, so can through the Aqua-Ofenbox this radiation and Konvektionsheizleistung in Wasserheizleistung be converted and about 6 KW for heating customers, z. As radiators, even in the lower or above lying floor or used for industrial water.

The Aqua-Ofenbox thus achieves a reduction of convection heat, since the stoves are usually in rooms of 20 m ² -30 m ² living space and thus overheat these rooms.

By The Aqua Oven Box solves this problem and the stove thus heats several rooms or small houses completely.

Of the Stove with the Aqua-Ofenbox is thus also for energy-saving houses, the with z. B. heat pumps are equipped, ideally suited. The existing convection openings are at the stove lockable, so that the Aqua-Ofenbox in pure recirculation mode works.

The Aqua stove box is usually on the back of the stove to the masonry, so mounted to the wall and is thus "invisible". By regulation, stoves must be 20 cm in front of the Wall to be mounted. Thus, the Aqua oven box, which is about 12 cm-15 cm deep, easily to the back wall of the stove be screwed. The width is about 40 cm-45 cm and the height about 50 cm-60 cm.

Consequently The Aqua-Ofenbox can be used on all conventional stoves be mounted, and these will be by closing the Convection openings to radiation ovens with a Heating power of about 2 KW, thus suitable for allergy sufferers.

The generated water heating power is how already described, by a heating pump, which rinses through the finned heat exchanger, in the "takers", z. B. radiator, fed directly. In front of the lamellar water heat exchanger, a Tacco setter is installed, which regulates the flow rate and ensures a constant flow rate. The heating pump is controlled by an installation sensor, so that the heating pump does not start until the corresponding heating water temperature is available.

The Heating pump, the Tacco setter and the investment sensor for The control of the heating pump can, but must not part of the Aqua-Ofenbox. You can also by the specialist fitter when connecting to the "consumer", z. As radiator or existing central heating supplied and be mounted.

After opening the convection openings on the stove and disassembly of the Aqua stove box is the stove in its original Condition shifted back and can thus be operated "as before".

The Aqua oven box can thus also to another z. B. new stove be mounted on the back wall. It is only for assembly necessary, in the stove, so in the back wall of the so-called Convection mantle top and bottom, z. B. with an electric Tin snips to cut a rectangular recess and already you can mount the Aqua-Ofenbox. The openings can after Disassembly of the Aqua-Ofenbox simply closed again with 2 sheet metal parts become. Since these are on the back wall of the stove, they are thus "invisible".

By the upper recess is sucked in the hot air - through the fan -, then through the lamellar water heat exchanger guided and back into the lower recess in the stove hot air jacket led back. In pure recirculation system or operation So is constantly hot air through the finned heat exchanger led and this "hot air" in Water heating energy converted.

The Installation of the Aqua-Ofenbox to a stove only needed a few hours and every market stove becomes too an effective genuine "secondary heating" for a house or depending on the isolation of the house and of course also the size, to the main heating.

fuels stoves are mostly wood, wood briquettes, lignite briquettes, Pellets etc.

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 301751 A1 [0002]
• - DE 1871346 U [0002]

Claims (6)

Aqua oven box, consisting of a cuboid flat housing, with a finned water heat exchanger is arranged obliquely in the housing and the lamellar water heat exchanger via a Supply and return line to a hot water system (heating or service water) can be connected, in which the lamellar water heat exchanger of flows through a stream of hot air, which of a Blower is generated. Aqua furnace box according to claim 1, wherein the fan controlled by a thermostat. Aqua oven box according to claim 1, wherein the Aqua furnace box factory installed. Aqua oven box according to claim 1, wherein the Aqua furnace box can be mounted on existing stoves on site. Oven with a warm air jacket in conjunction with the Aqua oven box according to claims 1 to 4, wherein the Aqua-Ofenbox with the warm air jacket of the furnace through openings is connected and the lamellar water heat exchanger of the Aqua-Ofenbox flowing hot air flow from the fan the hot air jacket of the furnace is sucked in and after cooling the hot air and warming of the hot water in the lamella water heat exchanger pushed back into the warm air jacket. Oven according to claim 5, wherein the Aqua-Ofenbox on the back of the furnace to the warm air jacket mountable is.