RU172122U1 - Removable sauna stove - Google Patents

Abstract

The utility model is intended for the equipment of metal bathing stoves and can be used to produce finely dispersed steam. The removable heater for the bathhouse stove is made in the form of a tank made without a bottom and equipped with a removable lid. A funnel is installed in the opening of the lid. A pair of opposite side walls of the vessel is made elongated. The shape of the lower parts of the second pair of opposite side walls of the heater follows the shape of the mounting support surface of the furnace. The removable closed heater is designed to heat stones (or other heat-accumulating material) in a closed volume protected from convective air flows, and obtaining superheated steam. Technical result - a removable heater of improved efficiency for the preparation of superheated steam is developed and by performing optimal teplopriema surfaces and heat retention.

Description

The utility model is intended for the equipment of bath metal furnaces and can be used to obtain fine steam.

It is widely known that a lot of metal bath stoves. In this case, the majority has an open heater, in which the stones are constantly blown by air currents. Due to the large heat transfer, the stones do not have time to warm up to a high temperature, so it is impossible to obtain steam of the required condition from an open heater: it must have a very high temperature and consist of very small drops. Such a pair is called finely divided (light): while in a steam room, a person easily breathes, the body warms up faster. It is not in vain that experienced steam workers try to get into the steam room first - at first, the “light” steam evaporates the heater. In order to realize the long-term generation of “light” steam, the furnace must have, in addition to the externally installed, a closed heater (see http://baniwood.ru/pech-dlya-bani-kutkin.html; http://baniwood.ru/pechi- feringer.html; http://baniwood.ru/pechi-trojka-dlya-bani-i-sauny.html; http://baniwood.ru/metalo-kamennye-pechi-dlya-bani-teklar.html). In a closed heater, stones are heated to 500 ° C and above. In an open heater up to 200-250 ° C. Pouring water on the overheated stones of a closed heater, and they get that very light and almost transparent steam, which connoisseurs of the Russian bath talk about. All of the above furnaces are equipped with an internal heater, located inside the housing, almost lowered into the furnace.

A disadvantage of the known furnaces is that the closed heater is located inside the furnace and is fixed inseparably, which makes it difficult to fill with stones (or other heat-intensive material) and maintenance (replacing stones, descaling the surface of the heater), increases the weight of the furnace during transportation.

A sauna stove is known, in the case of which there is an integral container with stones and electric heaters, circulation channels, in one of which a fan is installed to create an air flow through the stones and a device spraying water (for an analogue, see AS USSR No. 17575703, IPC 5 A61H 33/01, 1992).

This furnace has a complex structure. Electric heated sauna stoves are more expensive to use than wood-burning stoves; in addition, some users do not consider them completely safe.

Known heater stoves that burn solid fuel or gas, in which the stones are located on a horizontal or convex upper wall of the furnace, the so-called open heater (for analogues, see US patents No. 4299178, IPC 7 F23L 15/00; F24D 12/02; F24H 7/00, F23L 15/00; F24D 12/02; F24H 7/00, 1981, US 4073286, IPC 6 A61H 33/06, A61H 33/06, 1978, JP 2004267491, IPC 7 A61H 33/06, 2004, the book by V. Ryzhenko, “Baths. Saunas.” M.: Ripol classic, 2004, p. 69, Fig. 51).

In these furnaces, the contact area of stones with the heating surface of the furnace is limited by the horizontal surface of the upper wall of the furnace, therefore, for the rapid heating of stones, it is necessary to increase the surface area, which increases the area occupied by the furnace.

A steam bath furnace is known, comprising a casing, rectangular in cross section, a furnace in its lower part, above which there is a chamber with stones, having a vertical wall with which the stones come in contact and which, together with the outer wall of the casing, forms a channel for the exit of combustion products from the furnace. The camera with stones has an opening for radiating heat and steam to enter the room and the partition below the opening for holding stones, the opening has a door that opens to let the camera communicate with the atmosphere (analogue - US No. 2557656, IPC 4 А61Н 33/06, 1951).

In this furnace, the chamber with stones has a vertical wall opposite the opening for steam exit, and the closed chamber is heated not only from below, but also from the side of this chamber wall. However, the volume of stones is limited to one chamber, the contact area of the chamber with gases from the furnace is also limited only by the bottom and one side wall of the chamber, which reduces the rate of heating of the stones.

A well-known welded metal sauna stove containing a housing, a combustion chamber with a chimney, a heater, a water tank, a grate and a bowl for placing fuel, a door for loading fuel, a retractable ash pan, a chimney, a drain valve for releasing heated water. The furnace has a built-in tank for heating water with a water convector passing through the combustion chamber. The casing has a built-in upper and lower heater, the lower closed heater is located in the smoke chamber, the chimney is built into the smoke chamber and passes through the upper open heater (for an analogue, see RF patent PM No. 138705, IPC F24B 9/00 (2006.01) from 2014 .).

A disadvantage of the known furnace is that a closed (lower) heater is located inside the furnace and is permanently fixed, which increases the weight of the furnace during transportation. If such a design of water enters a closed heater, in a large volume, non-evaporated water remains inside the heater and begins to boil. Boiling water gives a coarse (heavy), unpleasant vapor, consisting of large particles, which makes the steam procedure not comfortable.

Known portable furnace containing a furnace with a grate and a fuel door and a heat sink, and the furnace and heat sink are made in the form of truncated cones installed by narrowing against each other with the possibility of mutual separation. A removable nozzle is installed between the cones of the furnace and the heat receiver (see RF patent No. 108824, IPC F24C 1/16 (2006.01), 2011).

The disadvantage of this solution is that a removable heat receiver (you can call this element of a portable furnace a removable heater), in which there are heat-accumulating elements, are not able to provide the preparation of superheated steam. This is because the heat received through the bottom from the furnace heats up not only the heat-accumulating elements, but also escapes into the atmosphere through the open top of the heat receiver. In addition, the bottom of the removable heat sink does not have an optimal heat sink surface.

No information was found for similar devices in the search process.

The technical task is to create a new product - a removable heater for preparing superheated steam.

The task is achieved due to the fact that the removable heater for the bathhouse furnace, according to the utility model, is made in the form of a container without a bottom, provided with a removable lid with a funnel, and a pair of opposite side walls of the vessel is made elongated.

The shape of the lower parts of the second pair of opposite side walls of the heater repeats the shape of the mounting support surface of the furnace.

EFFECT: removable heater of increased efficiency is developed for preparing superheated steam due to the implementation of optimal heat-receiving surfaces and heat preservation.

The implementation of a removable heater provides ease of carrying and ease of installation on the body of any furnace, for example, in the most heated area. The most effective installation of the removable heater on the hottest surface of the top of the furnace body and the abutment of the lower part of the heater’s capacity to the covered surface of the furnace, which is ensured by the lower part of the vessel repeating the shape of the furnace surface. In the place of contact of the lower parts of the side walls of the heater with the installation plane of the furnace, gaps are formed that are necessary for the steam to escape and the flow of non-evaporated water and should not overlap.

The implementation of a removable heater in the form of a tank without a bottom, equipped with a removable lid with a funnel, with exit slots in the places of adjoining of the side walls with the surface of the furnace, allows to increase the efficiency of producing steam with high temperature, because the closed volume of the heater provides maximum heating of the heat carriers laid in the heater. And the presence of exit slots at the bottom of the closed volume also eliminates convection.

The absence of a heater bottom eliminates an additional partition that impedes heat transfer.

A removable lid provides heat storage in the tank and the ability to conveniently lay or replace heat-retaining elements that need to be placed as tightly as possible, providing an empty space for the funnel. If the removable heater is placed in the open heater zone, then, after closing the cover of the removable heater, the open heater is filled with heat-accumulating elements, the severity of which ensures a tight fit of the cover and which additionally heat the removable heater from all sides.

The essence of the claimed technical solution is illustrated in FIG. 1-3.

FIG. 1 - removable heater;

FIG. 2 is a perspective view of a removable heater;

FIG. 3 - installation of a removable heater on the sauna stove.

The removable heater (see Fig. 1, 3) for the bathhouse furnace is made in the form of a container 1 made without a bottom and equipped with a removable cover 2. A funnel 4 is installed in the opening 3 of the cover.

A pair of opposite side walls 5 of the tank is made elongated and these sides cover the sides of the furnace surface.

The shape of the lower parts 6 of the second pair of opposite side walls 7 of the heater 1 repeats the shape of the mounting bearing surface of the furnace 8.

The removable closed heater is designed to heat stones (or other heat-accumulating material) in a closed volume, protected from convective air currents, and to produce superheated steam.

In the design of the furnace 8 (see Fig. 2), the removable closed heater 1 may preferably be located inside the open heater 9. The removable heater is installed on the upper mounting support surface 10 of the furnace 8. Water is dosed into the removable closed heater through a funnel 4 and evaporates, steam goes through an open heater. Steam and excess water, which did not have time to evaporate, leave through the provided slots 11 formed between the side walls 5, 7 of the heater and the surface of the furnace.

The capacity of 1 removable closed heater and funnel 4 are made of stainless steel.

The capacity 1 of the removable closed heater has a removable cover 2. After removing it, it is convenient to place the stones 1 that are required to be placed as tightly as possible in the tank installed on the furnace, providing an empty space for the funnel 4. Closing the cover 2 of the removable heater can fill the open heater by laying the stones and on the cover 2 of the removable heater.

The quality of steam is affected by the mass of stones and their temperature. Stones in heaters heat up to different temperatures: in an open heater up to 250-300 ° С; in a removable closed heater you can heat the stones to 500 ° C. By combining the supply of water to various areas of the open heater and into the closed heater, the consumer can receive steam of various temperature and create a variety of "steam cocktails."

In the tank 1 of the removable closed heater, a device is provided for irrigation with water of the heat storage elements, made in the form of a funnel 4. To release steam through the open bottom part 12 of the tank 1, when it is installed on the furnace, exit slots 11 are formed located between the side walls 6, 7 of the heater and the surface 10 ovens.

The funnel opening is calibrated so that the water has completely evaporated. The steam rises upward around the heated stones, and is turbulently distributed throughout the entire heater. The presence of a closed lid 2 does not allow the steam to exit through the top of the heater. The excess pressure that occurred during the formation of steam squeezes through the slots 11 superheated steam.

The heat storage elements can be Rashig rings in the form of short ceramic tubes with a diameter of 15–20 mm, heat-consuming, with a developed contact surface and high vapor permeability. Ceramics with this geometry, being in a closed volume of the tank, will quickly accumulate heat and quickly recover this heat in the intervals between use (after 10-15 minutes).

Field tests showed the high efficiency of the proposed design: increasing the heat transfer of a removable closed heater, increasing ease of use, expanding the range of applications of a removable closed heater.

A removable heater can be used for all types of bath stoves.

The device can be manufactured on modern equipment using existing technologies.

Claims (2)

1. A removable heater for the bathhouse furnace, made in the form of a container without a bottom, provided with a closed removable lid with a funnel, and a pair of opposite side walls of the vessel is made elongated. 2. A removable heater according to claim 1, characterized in that the shape of the lower parts of the second pair of opposite side walls of the heater repeats the shape of the mounting support surface of the furnace.

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