CZ14206U1 - Chimney head, particularly for removal of combustion products - Google Patents

Abstract

The chimney head, intended especially for flue gas venting, is constructed on the basis of a utility model. It consists of a ring and a chimney insert (10). The shape of the ring is a spoiler A (1), on which, by means of staybolts (4), another ring is hung, shaped in the form of a spoiler B (2) with adjustable distance from the fixed spoiler A (1). Between the both spoilers, there is a hoop (9) that is inserted by means of fixing consoles (91). Its distance from the spoiler A (1) is defined by distance tubes (6). Between the loop (9) and the spoiler B (2), there is at least one ring of a C-spoiler shape (3). The spoilers A, B, C (1,2,3) are aligned; their shapes are conical. The B-spoiler (2) is provided with a chimney insert (10).

Description

Chimney head, especially for flue gas exhaust

Technical field

The technical solution relates to a chimney head, in particular for flue gas exhaust, comprising a ring ring and a chimney liner, for use in heating with solid, gaseous and liquid fuels, in particular for industrial buildings, residential dwellings, family houses, country houses and holiday cottages existing as well as newly established chimneys.

BACKGROUND OF THE INVENTION

Nowadays, with special emphasis on environmentally friendly environment, uneconomical and imperfect combustion of fuel, which leads to higher fuel consumption, lower calorific use and consequently disproportionately high air pollution by flue gases, represents a significant problem. To eliminate or mitigate this undesirable condition, chimney attachments are used, either with a canopy or formed from an extended chimney pipe terminated by a fixed rudder cover. The elongated chimney pipe increases thrust by extending the chimney duct. The swivel cover is positioned to prevent air flow from above into the chimney, shielding the chimney from direct sunlight while partially protecting the interior of the chimney from rain. The disadvantage of the swivel cover is its contamination by soot. This eliminates light rotation and requires frequent maintenance. At the present lower draft, this chimney extension also cannot increase the chimney draft efficiency and, moreover, quickly undergoes the corrosive effects of the flue gas. Chimney adapters are known, for example according to the inventions CZ 230019 and CZ 235490. They are based on an elongated vertical chimney pipe followed by a horizontal or slanted pipe at the ends of which are short vertical pipes. To increase the chimney draft, only the ejection of air at the ends of the short vertical pipes is used, or the pipe ends are provided with an additional blade. This solution is a bit more effective, but far more complex. Finally, an assembly suction chimney head according to the invention CZ 163547 is known. It consists of a plurality of rotating rings arranged one above the other and curved upwards and of ribs which divide the space between the rings into several channels with an ever tapering cross-section. The suction effect of the head is achieved by trapping and diverting the flowing air in the tapered channels formed upwardly by the curved surfaces of the rings and the radial ribs. A major disadvantage of this solution is the constant setting of the distances of the individual rings, which does not take into account the characteristics of the combustion process of each individual combustion device and its particular need for exhaust gas removal.

The essence of the technical solution

The aforesaid disadvantages are eliminated by a chimney head, in particular for a flue gas exhaust, comprising a ring ring and a chimney liner according to the invention, which is characterized in that the ring ring is arranged in the shape of a rigid spoiler A on which into the carrier nuts, another circular ring in the shape of spoiler B is suspended with adjustable distance from the fixed spoiler A.

It is preferred that the span bolts are inserted into the spoiler A, and the support nuts are fastened in the spoiler B.

It is expedient for a spacer ring to be inserted between the two spoilers A, B by means of fastening brackets mounted on the span bolts. Further, its distance from spoiler A is defined by the upper spacer tubes and stabilized by a locking element.

In this context, it is advisable that a diaphragm with a removable lid is also mounted on the fixing brackets.

For proper operation, it is advantageous that at least one fixed ring ring in the shape of spoiler C is situated between the brace ring and the spoiler B and that it is also mounted on the span bolts. Further, its distance from the fastening brackets is defined by the lower spacer tubes. Axial stabilization to be performed by a locking element.

-1 CZ 14206 Ul

It is also desirable that all three spoilers A, B, C are aligned.

It is preferred that the annular spoilers A, B, C have a conical shape, tapering upward.

It is suitable that the spoiler B be provided with struts.

It is of course advantageous to have a chimney liner attached to the spoiler B.

The advantage of this technical solution can be further seen in simplicity of construction, unpretentious manufacturing, increasing its operational reliability, consisting mainly in increasing the efficiency of combustion equipment and quality of the combustion process, in preventing side wind blowing in the range from -75 ° to + 75 ° wind to the chimney draft regulator, in reducing emissions and soot, in preventing flue gas leakage, in extending chimney life, in reducing heat loss, in preventing excessive cooling of combustion devices, in increasing combustion temperatures, in ensuring proper operation safety and in facilitating attendants.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 schematically shows, in a half section, an exemplary embodiment of a chimney head with two spoilers A, B, and FIG. 2 schematically shows a chimney head with three spoilers A, B, C in partial section.

Examples of technical solution

The chimney head according to FIG. 1 consists of a circular ring in the shape of a spoiler A1. In the spoiler A 1, span bolts 4 are inserted, whose heads 41 protrude above the spoiler A1 and are adapted, for example, in the shape of ailerons 411. The heads 41 of the span bolts 4 may also be hexagonal or cylindrical with hexagon socket (not The fixing brackets 91 are attached to the shafts 42 of the span bolts 4, to which a bracing ring 9 is attached. The diaphragm 8 is further mounted on the bracket 91, with a removable cover 81 which is also threaded onto the span bolts 4. The distance between the spoiler Ala by the orifice 8 is then delimited by the upper span tubes 6, threaded on the shafts 42, of the span bolts 4. Against the axial displacement of the fastening brackets 91, they are locked by a locking element 5, e.g. bolts 4, underneath the underside of the mounting brackets 91. On the shafts 42, A further ring ring in the form of a spoiler B2 is hinged, which is threaded and fastened to the shafts 42 of the span bolts 4 by means of shoulder nuts 21 provided with external and internal threads. Stems 42, spindle bolts 4 extend into the support nuts 21, while the mounting nuts 22 are screwed onto the outer thread of the support nuts 21 to secure not only the spoiler B2 but also the struts 101 of the chimney liner 10 which is conical or cylindrical. prismatic (not drawn). In FIG. 2, the chimney head is arranged similarly, only between the fastening brackets 91 and the spoiler B2, at least one further ring ring in the shape of the spoiler C 3 is situated. This ring is also mounted on the shafts 42 of the span bolts 4. The side of the fastening brackets 91 is defined by the lower spacing tubes 7, directly supported on the underside of the fastening brackets 91. In this case, it is not necessary to lock the securing element 5, since stabilization of the individual chimney head parts is ensured by the upper span tubes 6, All three spoilers A and B and C are conical in shape, tapering upwardly and arranged coaxially. They are made of metal sheet, especially steel, especially stainless steel.

The handling of the chimney head is best seen in FIG. 2. The chimney head is inserted into the chimney (not drawn) and anchored so that the chimney liner 10, connected to the spoiler B 2, matches the profile of the chimney flue and the struts 101 abut on its surface. . Control of the chimney draft and suction effect is achieved by turning a hand or servomotor (not drawn) of the span bolts 4, behind the ailerons 411. First, the distance between the spoiler B 2 and the spoiler C 3 is reduced to a minimum. This will reduce the amount of air flow, attenuate the combustion process, and smoke will escape from the heating device (not drawn) directly into the surrounding space. Subsequently, the optimum combustion rate is achieved by reversing the span bolts 4 until the gap between

-2GB 14206 Ul spoiler B 2 and spoiler C 3 increases to such an extent that by increasing the flow of ambient air, smoke gains a direct draft into the chimney and completely stops escaping into the surrounding space. To clean the chimney flue, release the removable lid 81, orifice 8.

Industrial application ... »

The chimney heads according to the invention can be advantageously used not only for improving the exhaust gas flow during the combustion process of heating devices for various types of fuel, but also for improving the efficiency of operation of the ventilation devices.

Claims (9)

PROTECTION REQUIREMENTS Chimney head, in particular for flue gas exhaust, comprising a ring ring and a chimney insert (10), characterized in that the ring ring is arranged in the form of a fixed spoiler A (1) on which it is supported by at least two bolts (4), into the support nuts (21), another circular ring in the shape of spoiler B (2) is suspended, with an adjustable distance from the fixed spoiler A (1). Chimney head according to claim 1, characterized in that the spaced bolts (4) are inserted into the spoiler A (1) and the support nuts (21) are fixed in the spoiler B (2). Chimney head according to Claims 1 and 2, characterized in that a brace (9) is inserted between the two spoilers A, B (1, 2) by means of fastening brackets (91) mounted on the spaced bolts (4), its distance from the spoiler A (1) is defined by the upper span tubes (6) and stabilized by the locking element (5). Chimney head according to one of Claims 1 to 3, characterized in that a diaphragm (8), with a removable lid (81), is further mounted on the fastening brackets (91). Chimney head according to one of Claims 1 to 4, characterized in that at least one fixed ring ring in the form of a spoiler C (3) is situated between the brace ring (9) and the spoiler B (2), which is also mounted on the span bolts. (4), wherein its distance from the fastening brackets (91) is defined by the lower span tubes (7) and the axial stabilization is performed by a locking element (5 '). Chimney head according to one of Claims 1 to 5, characterized in that the spoilers A, B, C (1, 2, 3) are arranged coaxially. Chimney head according to one of Claims 1 to 6, characterized in that the spoilers A, B, C (1, 2, 3) have a conical shape, tapering upwards. Chimney head according to one of Claims 1 to 7, characterized in that a chimney liner (10) is connected to the spoiler B (2). Chimney head according to one of Claims 1 to 8, characterized in that the spoiler B (2) is provided with struts (101).