RU2752443C1 - Convector - Google Patents

Abstract

FIELD: community heating systems.SUBSTANCE: invention relates to the field of heating of buildings and structures for industrial and civil purposes, in particular to a convector. The convector includes a section containing a pipe for the passage of the coolant through the section, external heat exchange panels and located between them T-shaped rib formed by the upper and lower shelves, and horizontal ribs with through holes made in them, as well as side plates with a hole for pipes. The convector is made of aluminum or aluminum alloys. The external heat exchange panels are made at an angle to the inner cavity of the section. The pipe has a finned inner surface and is connected to a vertical rib diametrically located to the T-shaped rib. The through holes in the horizontal ribs are made of rectangular shape. The side plates contain at least one vertical slot, which includes a step made at the end of the T-shaped rib.EFFECT: increased intensity of heat exchange, simplification of the design and reduction of its overall dimensions, increase reliability, manufacturability and corrosion resistance.7 cl, 5 dwg

Description

The invention relates to the field of heating buildings and structures for industrial and civil purposes, in particular to a convector.

The purpose of the heater is to transfer heat from the coolant to the air that fills the room. According to the method of heat transfer, heating devices are conventionally divided into radiators and convectors.

Radiators transfer heat both by radiation and convection. Their disadvantages are their large size, low operating pressure (up to 6 bar), a large volume of coolant and heating of nearby objects.

Convectors transfer heat primarily by convection. In addition, they require less heating medium to fill the system. The design of the convectors allows them to withstand higher network pressures (up to 30 bar).

The most common design of the convector is a pipe with ribs pressed onto it and has such disadvantages as unaesthetic appearance, contamination of the intercostal space.

Known section of the radiator for a water heating system (RF patent for utility model No. 86710, IPC F24H 1/00, published 09/10/2009), containing a manifold for the passage of the coolant through the section and a heat exchange element having side panels located along the longitudinal axis of the collector, passing into the shelves perpendicular to them into the inside of the section with the formation of a longitudinal slot and ribs located between the side panels to increase the heat transfer area, including the main ribs and an additional rib located along the collector along its axis, having a T-shaped profile, the horizontal component of which runs along the longitudinal slot with a gap relative to the inner surfaces of the shelves perpendicular to the side panels, and the width of the horizontal component of the T-shaped profile is greater than the width of the longitudinal slot, characterized in that the main ribs are located along the side panels between their inner walls and the vertical component of the additional rib, symmetrically the longitudinal axis of the collector, and are made in the form of corrugations with a trapezoidal cross-section with large bases facing the vertical component of the T-shaped profile.

This solution is aimed at increasing the heat output of the P005 profile. The area of contact of the corrugated tape (insert) with the profile is not indicated. Due to the long length of the tape, it is most likely fixed in several places with the profile, and not along the entire length. Accordingly, the main method of heat transfer remains through air, that is, convection from the heating of the main profile, through the central collector. The presence of an additional element in the convection holes significantly increases the risk of filling the profile with dust, in addition, the channels may clog, which, in turn, reduces the heat transfer characteristics of the entire convector.

There is a known mounted heating convector (RF patent for utility model No. 101156, IPC F24H 3/00, F24H 3/06, published on 01/10/2011), installed on a heat conduit with a coolant, includes rigidly fixed cooling fins located along the axis of the heat conduit with a coolant, and contains a one-piece hollow body made in the form of a single whole with cooling fins placed in it. The device can be additionally equipped with means for assembling and connecting with a heat conductor, as well as at least two removable compensating gaskets made of metals or alloys with high thermal conductivity. The heating convector is made mainly of non-ferrous metals, in particular, aluminum, including extruded. The surface of the body can be additionally protected with an anti-corrosion coating, including galvanic (anodizing) or paint and varnish.

This product can be described as an additional hinged element for heating pipes with signs of a convector. Heat transfer from the heat carrier is carried out indirectly, and not purposefully, that is, with a low heat transfer coefficient. Its use is allowed in a highly specialized place, when the temperature of the coolant in the pipe exceeds the sanitary standards for residential premises. The device does not contain retaining elements and is attached directly to the coolant pipe. In this case, the pipe must be cleaned to metal, without coating with paint, to reduce thermal resistance. Not suitable for use on polypropylene and other non-metal pipes.

Known convector for a water heating system (RF patent for utility model No. 61397, IPC F24H 3/06, published on February 27, 2007), consisting of at least one section containing a heat exchange element having longitudinal side panels and ribs located between them to increase the heat transfer area, installation elements, characterized in that the section has at least two collectors for the passage of the coolant through the section, which on one side of the convector are connected to the collector for supplying the coolant, and on the other side to the collector of the coolant outlet.

The presented convector has two collector channels in the main profile. The design is bulky, since it contains a complex assembly for connecting the profiles to the general heating system, through the original support leg. The disadvantage of the design is that the support leg plays the role of a supporting element and at the same time the function of a loopback collector, which can be unreliable in operation. Also, the design allows only a single floor-standing version.

As the closest analogue, a convector for a water heating system and a convector section were selected (RF patent for utility model No. 53759, IPC F24H 3/06, published on May 27, 2006), consisting of at least two sections, each of which has a manifold for the passage of the coolant through the section and the heat exchange element having side panels and ribs located between them to increase the heat transfer area, installation elements, while the side panels are located along the longitudinal axis of the collector for the passage of the coolant through the section, the collector outlet of each previous section is connected to the collector inlet of the next section connecting manifold.

The presented convector is a one-piece structure, which is obtained from a profile by cutting the outer and inner ribs. The central element of the profile (collector) freed from the ribs is bent at an angle in such a way as to form two parallel profiles. Due to the fact that the design of the convector is one-piece, the support leg from the side of the protruding element (collector) is complex (consists of several elements bolted to each other). The design is difficult to manufacture. In addition, the likelihood of the appearance of microcracks in the bent element (collector) is not excluded, which can lead to unreliability of the structure and a decrease in operational characteristics, namely, a decrease in the resistance to pressure of the coolant, the expansion of microcracks from a temperature difference, and a decrease in corrosion resistance. The chosen method of looping the convector also limits the variations in the parallel placement of the profiles and excludes the possibility of repair and simple replacement of the convector section.

The technical objective of the invention is to develop an aluminum convector that is easy to manufacture and install.

The technical result is to increase the intensity of heat exchange, simplify the structure and reduce its overall dimensions, increase the reliability, manufacturability and corrosion resistance.

The technical result is achieved in that the convector includes at least one section containing a pipe for the passage of the coolant through the section, external heat exchange panels and located between them a T-shaped rib formed by the upper and lower shelf, and horizontal ribs made in through holes, as well as side plates with at least one hole for pipes, while the convector is made of aluminum or aluminum alloys, the external heat exchange panels are made inclined to the inner cavity of the section, the pipe has a ribbed inner surface and is connected to a vertical rib diametrically located to the T-shaped rib, while the through holes in the horizontal ribs are rectangular, and the side plates contain at least one vertical slot, which includes a step made at the end of the T-shaped rib.

The invention is illustrated by the following drawings:

Fig. 1 - the design of the convector.

Figure 2 is a convector profile.

Fig. 3 is a diagram of the profile attachment.

Fig. 4 - options for mounting the convector.

Fig. 5 - installation of convectors in successive groups.

The convector 1 (Fig. 1) includes at least one section 2 containing a pipe 3 for the movement of the coolant (water) through section 2. The pipe 3 (Fig. 1, 2) has a ribbed inner surface to increase the contact surface with coolant. On the sides of the pipe 3 along the entire length of the section there are symmetrically arranged horizontal ribs 4 located in a plane passing through the longitudinal axis of the collector and connecting the pipe 3 with the external heat exchange panels 5. The horizontal ribs 4 allow to increase the heat transfer area. At the same time, through rectangular holes 6 are made along the entire length of the horizontal ribs 4 at a predetermined distance from each other, ensuring the movement of air.

External heat exchange panels 5 are located along the longitudinal axis of the pipe 3 and are formed by straight 7 and 8 inclined sections. In this case, straight sections 7 protrude downward beyond the pipe 3 perpendicular to the horizontal ribs 4, and the inclined sections 8 of the external heat exchange panels 5 are made at an angle of 7-15 ° with an inclination to the inner cavity of the section 2 of the horizontal ribs 4 to increase the flow rate of heated air at the outlet from convector. Inclined sections 8 in the upper part are rounded inwardly of section 2 with the transition to the shelves 9 perpendicular to them with the formation of a longitudinal slot. External heat exchange panels 5 also have technological thickenings 10, made on straight 7 and inclined 8 sections, to increase the strength of the structure.

To increase the heat transfer area along the entire length of the pipe 3, a T-shaped rib 11 (Fig. 2) and a vertical rib 12 are made along its axis.

The T-shaped rib 11 runs along the upper part of the pipe 3 along its entire length and is formed by the upper 13 and lower 14 shelves. In this case, the upper shelf 13 is horizontal and runs under the longitudinal slot formed by the shelves 9 of the outer heat exchange panels 5 so that the width of the upper shelf 13 exceeds the width of the longitudinal slot to protect the inner surface of the convector from the penetration of foreign objects. On the lower shelf 14 of the T-shaped rib 11 there is a technological thickening 15 to increase the strength of the structure.

The convector is manufactured by extrusion from aluminum or aluminum alloys in the form of a single piece. The absence of copper and silicon in the convector's composition improves corrosion resistance.

After extrusion, the profile is cut into sections of the required length. The convector length can vary from 0.5 to 2 meters. The basic convector length is 1; 1.5 and 2 meters.

Further, part of the material is removed from the profile, namely, part of the horizontal ribs 4, external heat exchange panels 5, T-shaped rib 11 and vertical rib 12, to form a section of the cylindrical part of the pipe 16 (Fig. 1, 3), on which the external thread is cut , and steps 17 on the T-shaped rib 11.

Next, a side plate 18 (Fig. 3) is installed on the convector with through holes for the pipe 3 mated with the slots 19. When the side plate 18 is connected to the convector, the protrusion 17 engages with the slots 19 and prevents the profile from rotating around its axis, and also perceives torque when installing the convector. In a particular case, the slots 19 can be made in a stepped shape. Then nuts 20 are screwed onto the threaded pipe 3. The size of the side plate 18 and the number of holes made on it depend on the number of installed sections 2.

The side plates 18 can be configured with an outward locating flap and an inward locating flap. The second option is more aesthetic, but implies first the installation of the device, and then the piping. If the pipes are already routed, the first option is preferable, since it allows you to perform fastening "in place".

Convectors are made of floor (Fig. 4a, 4b) or wall mounting (Fig. 4c, 4d) and can include several sections, installed one above the other (Fig. 4a, 4c) or side-by-side (Fig. 4b, 4d) ...

Convectors can be installed individually or in series, which is especially convenient for long and curved rooms. When installing the collectors in series (Fig. 5), side plates 18 are also installed at the ends of the sections for fixing the convector to the floor or to the wall. The connection of the convector sections is carried out as follows: the first pairs of locknuts 21 are screwed onto the ends of the pipes 3, onto which couplings 22 are then installed, which are connected to the pipe 23 by means of the second pairs of locknuts 24.

In this case, one of the open ends of a pair of sections 2 are closed with nuts 20, and the other ends are connected to a looping collector 25, which, in turn, is connected to the pipe outlet of one section 2 and to the pipe inlet of the other section 2 using couplings 26 and locknuts 27.

When the heat carrier (water) is heated in the pipe 3, the air entering the inner cavity of the convector is heated, formed by horizontal fins 4, external heat exchange panels 5, T-shaped fin 11 and vertical fin 12. Then the heated air passes through the gap formed by the shelves 9 and the upper shelf 13 of the T-shaped rib 11. Making the external heat exchange panels 5 inclined with respect to the horizontal ribs 4 allows to increase the flow rate of heated air at the outlet of the convector, and the T-shaped rib 11 protects the inner surface of the convector from the penetration of foreign objects.

The declared design of the convector allows to increase the thermal power by 100 W / m in comparison with the closest analogue and to achieve a technological efficiency equal to 113 W / kg.

Claims (7)

1. A convector comprising at least one section containing a pipe for the passage of the heat carrier through the section, external heat exchange panels and located between them a T-shaped rib formed by the upper and lower shelves, and horizontal ribs with through holes made in them, and also side plates with at least one hole for pipes, characterized in that the convector is made of aluminum or aluminum alloys, the external heat exchange panels are made inclined to the inner cavity of the section, the pipe has a ribbed inner surface and is connected to a vertical rib diametrically located to T -shaped rib, with the through holes in the horizontal ribs made of rectangular shape, and the side plates contain at least one vertical slot, which includes a step made at the end of the T-shaped rib. 2. The convector according to claim 1, characterized in that the external heat exchange panels are made at an inclination of 7-15 ° to the inner cavity of the section. 3. A convector according to claim 1, characterized in that there is a technological thickening on the lower shelf of the T-shaped rib. 4. The convector according to claim 1, characterized in that the convector section is made in the form of a single piece made by extrusion. 5. The convector according to claim 1, characterized in that the pipe is made with longitudinal ribbing along its entire length. 6. A convector according to claim 1, characterized in that the vertical slot made in the side plate has a stepped shape. 7. A convector according to claim 1, characterized in that the side plates are bent outward or inward with the possibility of being installed to a vertical or horizontal surface.

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