RU2729639C1 - Heat accumulating loading attachment system in furnaces - Google Patents

Abstract

FIELD: furnaces; construction.SUBSTANCE: invention relates to design of furnaces and construction for heat accumulation and / or shielding of infrared radiation by furnaces, as well as decorative cladding. System for attachment of heat accumulating loading in furnaces is characterized by arrangement of heat accumulating load on side and / or rear surfaces of furnace and its elements and consists of supports attached in rows to housing on sides of furnace, on which rods or winding incombustible cords, cables and wires are freely lying. In the distance between the rods, wrapped with incombustible cords, ropes or wires and the furnace housing, heat accumulating load is placed with the size larger than this distance at least in one section.EFFECT: providing uniform load of heat accumulating load at thermal expansion without excess pressure and increasing convenience of furnace servicing, simplification and universality of design.1 cl, 4 dwg

Description

The invention relates to the field of furnace design and construction for heat accumulation and / or screening of infrared radiation by furnaces, as well as decorative cladding.

It is known that to increase heat accumulation and / or screening of excessive infrared radiation of furnaces, furnace linings and lining with stones, insulators, and other heat-accumulating materials are used. Likewise, the lining and lining of the stove with heat-accumulating materials screens the strong infrared radiation from the body or the furnace of the stove.

Covers and facings are especially relevant for sauna stoves, where the heat storage loading of the stove allows achieving thermal inertness (accumulation of thermal energy) for steam generation. For example, when pouring water on hot stones of the facing or facing.

Stoves often have an external heater formed by metal elements located around the perimeter of the device, where stones are placed to provide protection from hard infrared radiation and are a source of so-called "soft" heat (for example, patent RU182654 U1, published on August 27, 2018).

Problems in the prior art are the destruction of the heater body, the elements of the heat storage charge itself, due to the pressure arising due to thermal expansion and pressure above the stacked charge elements.

With stones stacked on top of each other (elements of heat storage loading), their replacement and maintenance is problematic. The problem lies in the need for a complete bulkhead of the heater's heat storage load, even if it is necessary to remove and replace the cracked stone at the bottom of the heater.

Known sauna stove RU (11) 180 744 (13) U1 publ. 06/22/2018 in which an additional heater filled with heat storage loading is located on one side and / or rear of its surfaces, made in the form of flat rectangles enclosed by a metal mesh of bars, forming a mesh box-fence for laying stones (heat storage loading).

Used in this invention, the solution of the additional heater is the closest to the claimed one and is chosen as a prototype.

The common thing with the prototype is that the heat-storing tab is also located on the side of the furnace and receives heat from the heating of the furnace body.

The disadvantages of the prototype are:

• Destruction of the fill due to the occurrence of excessive pressure on the loading and the construction of rigid rectangles fenced with a metal mesh of bars due to thermal expansion of the loading and the rigidity of the metal enclosing structure

• Large labor costs - to replace or clean the stone lying below the bookmark, you will have to get all the stones out of the rectangle

• Non-versatility of application on other furnaces

• Great complexity of the design during manufacture.

The tasks to be solved by the claimed invention are to obtain a universal design for fastening the heat storage charge on the furnace, without problems of destruction of the furnace, its components and elements of the heat storage charge itself (destruction occurs due to pressure due to uneven thermal expansion of materials), as well as simplification of the design and increasing simplicity service.

EFFECT: provision of uniform load of heat storage charge during thermal expansion without excessive pressure and increased convenience of furnace maintenance, design simplification and versatility.

Solving the problems and obtaining the technical result by the claimed invention is achieved due to the fact that the system of fastening the heat storage charge in the furnaces consists of supports (Fig. 1, 1) attached in rows to the body (2) on the sides of the furnace, on which the rods (3) lie freely, and between the bars and the body, the heat storage charge (4) is placed under its own weight. The rods can be replaced with wires wrapped around the supports, non-flammable cords and cables. The supports attached in rows to the furnace body have recesses or locks (5) to prevent the rods from displacing under the influence of their own weight pressure from the heat storage charge. The invention can be applied to any side of the oven, including all sides.

Supports installed in rows around the perimeter of the furnace body with a recess for free stacking of the bar can be made of a simple metal bolt (6) and a nut (7) welded or attached to the opposite side of the head to the furnace body. Between the head of the bolt and the screwed-on nut, a distance is left for laying around the perimeter of the bars. the bolt and nut act as a lock for the bars to prevent the bars from displacing under the influence of their own weight pressure from the heat storage charge (z.p.2 of the formula). This embodiment is shown in FIG. 1, ill. 8.

When the bolt structure is welded to the furnace body, the bolt head is attached to the furnace body to increase the strength of the joint and increase the contact area. two nuts are used to clamp the bar. This embodiment is shown in FIG. 1, ill. nine.

If there is no possibility of welding, the support from the bolt (6) can be fixed in the hole in the furnace body (2) using the nut (7). This embodiment is shown in FIG. 1, ill. ten.

Another option for making supports is sheet metal cut into rectangles with a small recess at the edge for laying the bar.

This embodiment is shown in FIG. 1, ill. eleven.

In brick ovens, it is possible to produce corner bricks with chamfers for the subsequent laying of rods and heat storage loading. It is also possible to use metal supports in brick ovens, according to the schemes described above.

The rods can be made of rebar bent at the corners or welded at the corners if the system is used on several adjacent sides of the furnace. The height between the rows is determined by the desired fraction of the used heat storage load (stones), and the horizontal distance between the supports and their number is determined by the rigidity of the structure. So, for example, when using a system of fastening stones on three adjacent sides of a rectangular furnace (Fig. 2, 2), five supports (1) can be used per row: two at the corners of the lateral sides, one on the back (middle) side, when using a single P -shaped bar (3) per row. An example of the implementation by the authors of a system for fastening a heat storage charge on three adjacent sides of a rectangular furnace without a heat storage charge is shown in Fig. 3. In FIG. Figure 3 shows the components of the fastening system in the form of supports (Fig. 3, 1) attached to the furnace body (2) in rows of sheet metal with a recess for the rods (5), and metal rods (3) laid in the recesses of the supports (5). In an example of implementation, with small dimensions of a rectangular furnace, four supports are used per row (1): two on the back (middle) side, one on the sides of the furnace when using a single U-shaped rod per row (3).

The bar can be replaced with a stretched cord, or a wire stretched in order on the supports.

The multiple fabrication options shown make it easy to manufacture the invention in different ways, even at home, without using welding.

The heat-accumulating load is laid in order, leaning the bookmark element tightly against the body with the flattest side. Pressing the insert element against the furnace body is achieved due to the element's own weight and the stop between the body and the bar. Pressing the flat side of the bookmark element under its own weight against the hot furnace body gives a denser and greater contact of the laid stone with the heated furnace body, which allows the heat-accumulating bookmark to produce better heat removal from the heated furnace surface.

The position of the stone does not go astray and does not change under the loading and pressure of the stones placed above, due to the fact that the stones are placed in rows independent of each other. This allows both maintenance and installation of the elements of the heat storage charge, regardless of

With the proposed laying of stones, it is possible to replace any stone in any row without disassembling and taking out all the other stones available.

Stones laid in free-lying rods do not have a load leading to premature destruction due to thermal expansion of the bookmark due to the mobility of free-lying rods.

The insertion of the heat storage charge into the furnace realized by the authors, shown in Fig. 3 is shown in FIG. 4, where as a heat storage charge (Fig. 4, 4). The furnace body (2) is practically hidden behind the heat storage charge. The visible elements were the supports (1) attached to the furnace body (2) in rows of sheet metal with a recess for rods (5) and metal rods (3) laid in the recesses of the supports (5).

New in the claimed invention is the construction of fastening the heat storage charge to the furnaces, consisting of a heat storage charge, which is loosely stacked in order under its own weight, leaning against the furnace body between the rod lying freely on supports at a distance from the furnace body and the furnace body.

The claimed invention makes it possible to extend the life of the heat-storage charge due to the absence of excessive pressure / constriction during thermal expansion, to increase the convenience of cleaning and maintaining the heater. Due to the variability of the execution of the invention, it is universal, i.e. applicable for various furnace designs. And a small number of elements (support and bar) that can be made in various options without using special equipment allow you to simply make the invention in various options, even at home, which is a confirmation of the simplicity of the design and ease of manufacture.

The authors have made prototypes that have shown positive results during testing.

Claims (2)

1. The system of fastening the heat storage charge in furnaces, characterized by the location of the heat storage charge on the side and / or rear surfaces of the furnace and its elements, characterized in that it consists of supports attached in rows to the body on the sides of the furnace, on which rods are freely laid or non-combustible cords are wrapped , ropes, wires, in the distance between which and the furnace body a heat storage charge is placed with a size larger than this distance at least in one section. 2. The system of fastening the heat storage charge according to claim 1 is characterized in that the supports attached to the furnace body in rows have recesses or locks.

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