RU2779677C1 - Tubular radiator - Google Patents

Abstract

FIELD: heating technology.

SUBSTANCE: invention relates to heating technology, namely to centralized water heating systems, can be used in the manufacture of tubular radiators. The tubular radiator contains interconnected upper and lower manifolds, hollow tubes and connection flanges. Each collector is made in the form of a set of rounded adapters in the form of a straight round pipe, excised by two cylinders of larger diameter perpendicular to the pipe axis in the same plane from each edge of the pipe, and the connection flanges are mounted on the extreme hollow tubes coaxially to the upper and lower collectors and are also made in the form of hollow tubes. The connection flanges and manifolds are arranged symmetrically relative to the common cross-sectional plane.

EFFECT: increase in the contact between the tube and the collector and a reduction in the loads between them, simplification of manufacturing through the use of laser welding.

1 cl, 8 dwg

Description

The invention relates to heating technology, namely to systems of centralized water heating, can be used in modern office and residential buildings with increased requirements for the interiors of the premises.

There are various types of heating devices: cast iron radiators, steel radiators, extruded aluminum radiators, tubular radiators, convectors (GOST 31311-2005).

One of the most common types of heating devices used in modern buildings are sectional aluminum and bimetallic radiators, for example, manufactured by ROYAL THERMO RUS (https://www.royal-thermo.ru/production/stages/).

The advantages of sectional radiators are a modular design that allows, under certain conditions, to increase the number of sections in consumer conditions, a modern design of curvilinear shapes, and a high rate of specific heat transfer per section. The disadvantages of sectional radiators include the likelihood of leaks at the joints of sections, the likelihood of depressurization when building sections by the consumer in the absence of the necessary tool for crimping a new assembly, the biggest drawback is the complexity of the technological process for manufacturing sectional aluminum radiators. The complexity of the technological process lies in the presence of actually metallurgical production, during the manufacture of the section, aluminum is melted, which requires input control of the aluminum alloy, the use of shaft and dosing automated furnaces, for feeding the alloy into molds, casting under pressure measured in thousands of tons, using robotic complexes that produce a limited number of sections in one operation, as well as significant production equipment is required for the manufacture of sectional radiators.

Manufacturers optimize the section shape to obtain maximum heat transfer, for example, see useful models No. 122469 "Sectional radiator", No. 123123 "Sectional radiator" or No. 144024 "Sectional type radiator and radiator section for its manufacture", containing sections of aluminum alloy, in each section - a vertical pipe that communicates with horizontal upper and lower collectors for the passage of the coolant, while the vertical pipe is made with two-sided symmetrical vertical fins connected to the front and rear panels, forming a stiffener, with heat-transferring vertical fins placed on its surface three ribs of different lengths. At the same time, the upper edge of the rear panel is finger-shaped and bent towards the upper manifold, the stiffening rib is made with external wavy protrusions; at the same time, the longitudinal sides of the heat transfer stiffeners are made narrower by two thirds of the length; and the upper edge of the rear rib has a continuation in the form of a curved wall, covering the upper collector and going under the inclined upper edge of the rear panel, with the formation of an asymmetric closed contour slightly shifted forward above the upper collector.

The main disadvantage of the described collector is the complexity of manufacturing, and also, due to design features, the collector is a dust collection point and increases the circulation of dust and allergens at the installation site.

The next two types of heating devices that do not require metallurgical production are convectors and tubular radiators.

Convectors are pipes with fins, carried out by planting a large number of lamellas on the tube when it is mandreled, for example, convectors of the Universal series manufactured by JSC Plant Universal (https://zavoduniversal.ru/catalog/production/konvektory/). Convectors heat the air by natural convection. The advantages of convectors are the speed of heating the premises, which is much higher than that of similar radiators, and, for convectors with a decorative cover, the minimum risk of burns. The disadvantages of convectors are the limited use in terms of the volume of the room, the risk of injury from the sharp edges of the lamellas in the absence of a decorative casing, the difficulty of cleaning, since it is a collection point for dust and allergens and increases the circulation of dust and allergens in the premises, the presence of noise due to the presence of expansion processes dissimilar metal pipes and lamellas, in addition have an archaic design. An example of the invention reflecting the general principle of the convector is described in patent No. 2369807.

A tubular radiator consists of two collector pipes with flanges for connecting communications, between which there are vertical hollow tubes, for example, a tubular radiator of the Harmony series manufactured by KZTO Radiator LLC (https://www.kzto.ru/garmoniy). The radiator has a simple design, implemented at a machine-building enterprise, an additional cavity inside the radiator tube provides air convection, which increases heat transfer compared to tubular radiators, in which the tubes are made in the form of cylinders. The disadvantages of these tubular radiators are the asymmetry of the radiator with a single-row version, or the increased thickness of the radiator with a two-row version, as well as the presence of a minimum connection contact between the tube and the collector, which leads to the appearance of significant stresses in this place, including those directed downwards along the tubes. A significant disadvantage is also the design of the tube, which requires the use of a laser welding machine with additional degrees of freedom due to the narrowing of the diameter of the inlet and outlet of the outer surface of the tube.

The closest in terms of essential features is the above-mentioned tubular radiator of the Harmony series manufactured by KZTO Radiator LLC, described in utility model patent No. RU 23954, which is taken as a prototype and contains two horizontal collectors with connecting elements at the ends, the cavities of which are connected between themselves by a number of vertical columns, which are made in the form of coaxially located outer and inner pipes, forming an annular cavity connected with the cavities of the collectors through holes made in the side wall of the outer pipe adjacent to the collectors. Due to the absence of sharp design elements, the risk of injury is eliminated, as well as the complexity of cleaning, since dust and allergen collection points are excluded. The radiator operates silently due to the absence of expansion processes of dissimilar metals of pipes and lamellas. The disadvantages of the known tubular radiator device are the insufficient strength of the connection of the tubes and radiator collectors, the complexity of manufacturing a hollow tube and the product as a whole.

The problem to be solved by the invention is:

- increasing the strength of the connection of tubes and radiator manifolds,

- simplification of the design of a hollow tube when manufactured using equipment with fewer degrees of freedom,

- creation of a simple symmetrical single-row design of a tubular radiator.

The technical result from the implementation of the proposed technical solution is:

- improving the quality of the tubular radiator, by increasing the contact between the tube and the collector and reducing the loads between them;

- for the manufacture of a hollow tube, it is sufficient to use a laser welding machine with two degrees of freedom in a horizontal plane;

- improving the aesthetic and operational qualities due to the approximation of the design of a tubular radiator to the type of a sectional radiator and its connection to centralized heating networks.

The problem is solved, and the technical result is achieved due to the fact that in a well-known tubular radiator containing interconnected upper and lower manifolds, hollow tubes and connection flanges, each hollow tube is made in the form of two pipes of different diameters inserted into each other and hermetically connected along the upper and lower contours, while the upper and lower parts of the inner pipe are made with expansion to the size of the outer pipe, and each collector is made in the form of a set of round adapters, each of which is located coaxially and connects two adjacent hollow tubes, each round adapter is made in in the form of a straight round pipe, cut by two cylinders of larger diameter, perpendicular to the axis of the pipe in the same plane from each edge of the pipe, and the connection flanges are installed on the outermost hollow tubes coaxially to the upper and lower manifolds and are also made in the form of hollow tubes, while the connection flanges and manifolds arranged symmetrically with respect to a common plane sectional speed.

The execution of each hollow tube in the form of two tubes of different diameters inserted into each other, with the expansion of the upper and lower parts of the inner tube to the size of the outer tube sealed along the upper and lower contour of the tubes, provides ease of welding along the ends of the tube along a circular path using a laser welding machine with two degrees of freedom in the horizontal plane.

Execution of collectors in the form of a set of rounded adapters, each of which is located coaxially and connects two adjacent hollow tubes, while each rounded adapter is made in the form of a straight round pipe, cut by two cylinders of a larger diameter, perpendicular to the axis of the pipe in one plane from each edge of the pipe, provides a large contact patch between the hollow tube and the round adapter, which reduces internal stresses in the tubes and joints, as well as the likelihood of a welded joint failure. The likelihood of leaks at the joints of sections and depressurization when building sections is reduced. The quality of the tubular radiator is improved.

The implementation of the connection flanges installed on the outermost hollow tubes coaxially to the upper and lower manifolds, as well as the arrangement of the hollow tubes, connection flanges, and manifolds symmetrically with respect to the common cross-sectional plane, ensures that the design of the tubular radiator approaches the general view of the sectional radiator, including due to the unification of the connection of communications with coolant. Due to the layout design, the tubular radiator operates silently.

As a result of the patent search, no technical solution with the distinctive features of the claimed invention was found. The proposed technical solution for a tubular radiator is new, since the set of distinctive essential features for a tubular radiator is not known from the prior art, it has an inventive step, since it does not explicitly follow from the prior art.

The essence of the proposed technical solution is illustrated by drawings, which show:

in fig. 1 - tubular radiator (isometric view);

in fig. 2 - tubular radiator (front view);

in fig. 3 - tubular radiator (top view);

in fig. 4 - tubular radiator (right view);

in fig. 5 - round adapter (top view);

in fig. 6 - round adapter (right view);

in fig. 7 - round adapter (isometric view);

in fig. 8 - hollow tube (section by a plane).

In FIG. 1 shows an example of a tubular radiator with five hollow tubes, similar to the tubular radiator of the present invention with a different number of hollow tubes. The tubular radiator contains hollow tubes 1, round adapters 2, connection flanges 3. Each hollow tube 1 is connected to four round adapters 2, except for the outermost hollow tubes. The outermost hollow tubes 1 are connected to two round adapters 2 and two connection flanges 3.

A tubular radiator containing interconnected upper and lower manifolds, hollow tubes and connection flanges, characterized in that each hollow tube is made in the form of two pipes of different diameters inserted into each other and hermetically connected along the upper and lower contours, while the upper and the lower part of the inner tube is made with expansion to the size of the outer tube, and each collector is made in the form of a set of rounded adapters, each of which is located coaxially and connects two adjacent hollow tubes, each rounded adapter is made in the form of a straight round tube cut by two cylinders of a larger diameter , perpendicular to the axis of the pipe in one plane from each edge of the pipe, and the connection flanges are installed on the outermost hollow tubes coaxially to the upper and lower manifolds and are also made in the form of hollow tubes, while the connection flanges and manifolds are located symmetrically relative to the common section plane.

The device works as follows.

Interconnected hollow tubes 1, round adapters 2 and connection flanges 3 form sealed cavities, the coolant, flowing through one connection flange 3, passes through all hollow tubes 1 and round adapters 2, giving off heat to the outer planes of the tubular radiator and providing heating of the room with thermal radiation, an additional effect is achieved due to air convection through the inner surface of the hollow tubes 1. The second connection flange 3 serves to exit the coolant into the central heating systems, a tap (not shown in Fig.) can be installed on the third connection flange to bleed air from the tubular radiator, a plug is installed on the fourth connection flange 3 (not shown in the figure). The tubular radiator can be connected to the heating system in any way available for connecting a sectional radiator: side, diagonal, bottom.

Thus, the tubular radiator according to the claimed technical solution is easier to manufacture due to the design of a hollow tube and a symmetrical single-row design of a tubular radiator, provides a reliable connection of hollow tubes, manifolds and rounded adapters, and also provides aesthetic and operational qualities for connecting at the level of sectional radiators .

Claims (1)

Tubular radiator containing interconnected upper and lower manifolds, hollow tubes and connection flanges, differing the fact that each hollow tube is made in the form of two pipes of different diameters, inserted into each other and hermetically connected along the upper and lower contours, while the upper and lower parts of the inner tube are made with expansion to the size of the outer tube, and each collector is made in the form of a set rounded adapters, each of which is located coaxially and connects two adjacent hollow tubes, each rounded adapter is made in the form of a straight round pipe, cut by two cylinders of a larger diameter, perpendicular to the pipe axis in the same plane from each pipe edge, and the connection flanges are installed on the extreme hollow tubes are coaxial to the upper and lower manifolds and are also made in the form of hollow tubes, while the connection flanges and manifolds are located symmetrically relative to the common sectional plane.

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