DE1892636U - DIFFUSER-LIKE GAS INLET FITTING FOR ELECTROSTATIC DUST COLLECTORS. - Google Patents

Description

Aktiengesellschaft 16 July 1963

Frankfurt (Main) Sdt / HIa

lieuterweg 14

prov. Ir. 4194

Diffuser-like gas inlet nozzle for electrostatic dust collector

From French patent specification 1 05 !? 710 for example the diffuser-like gas inlet nozzles for electrostatic dust collectors are known, in which both the vertical and the horizontal opening angle is about 66 °. These arrangements, in which mostly a perforated plate is attached ensure a largely uniform gas distribution over the inlet cross-section of the electrostatic internal dust extractor. So that the dust that accumulates on the perforated plate can be removed from the gas flow, there are already under the gas inlet nozzle Bunker attached.

Attaching such bunkers is associated with increased material and space requirements. The hiring therefore suggests a diffuser-like gas inlet nozzle for electrostatic dust separators in horizontal construction according to Art of a four-sided truncated pyramid with built-in perforated sheets for even gas distribution without a bunker substructure,

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where the vertical opening angle is about 105 to 115 °, the horizontal opening angle depending on the opening ratio is 40 to 110 ° and several built-in perforated sheets seen in the gas direction have an increasing throttling effect.

Individuals are in need of further training in inflation Perforated sheets at their lower end at a small distance (approx. 10-15 cm) over the lower wall of the diffuser several attached to the lower wall of the diffuser Removed angle plates, which are arranged in a row at a distance of about 10 20 cm. This row of angular sheets acts as a additional throttle device. The spaces between the Angle plates serve as an additional partial gas passage and as a discharge opening for the one on the perforated plates falling dust to exit into the bunker under the control housing.

As part of the innovation, it is proposed as further training vertical radiant panel sections between the perforated sheets to be arranged in the lower and upper part of the diffuser. These Radiant sheet metal sections are in the plan after the price increase seen in the direction of the bisector of half the opening angle ß arranged, as their height each about 1/4 to 1/3 the height of the perforated sheet.

The furnace is explained in more detail using an exemplary embodiment.

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Figure 1 shows a schematic longitudinal section !! a electrostatic dust extractor with the diffuser-like gas inlet nozzle according to the taxation.

Figure 2 shows a cross section of the diffuser-like gas inlet nozzle.

Figure 3 shows the surfaces like a perforated sheet different degrees of throttling are arranged.

Figure 4 shows the liner end of the perforated plate arrangement in cross section. ,

The diffuser-like gas inlet nozzle of the electrostatic dust separator 2 is denoted by 1, the precipitation fields of which are indicated by 3. The vertical opening angle of the gas inlet nozzle <£ is et? / A 105 - 1ϊ 5, the horizontal opening angle ß about 40 to 110 ° depending on the respective entrance-opening ratio as A or b: B. The individual perforated sheets ■■, 4 ', are removed at their lower end at a small distance over the lower wall of the diffuser onto several angle plates 7, which are arranged at a distance from one another.

The dust falling on the perforated sheets slides on the eggs, lower wall of the diffuser down and passes through the openings. 8 between the angle plates 7 in the bunker 5

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of the electrostatic dust collector. The arrangement of the angled plates 7 not only causes the perforated plates to be attached at its lower end, but also acts as an additional throttling.

The openings 8 also serve for the partial passage of Eohgas. It is not absolutely necessary that the inlet opening of the Hohgaseinlaßstutzens the closest Lochlolechwand - In the embodiment, the perforated plate 4 - at its lower To remove the end, as this wall has a relatively low height compared to the other perforated sheets.

This perforated plate 4 is arranged in the diffuser-like inlet stub in such a way that an opening 6 is present over the entire width at its lower end, through which the dust, which is deposited on the said perforated plate, can pass. For a uniform 13 e on impact of the downstream electrostatic dust collector, it has been found to be advantageous to arrange so-called steel sheet sections 9 vertically between the little holes.

These beam bleed sections preferably run in the direction of the bisector of the angle β. Seen in elevation, the oil blasting sheet metal sections are arranged in the upper and lower part of the diffuser-like inlet connection piece in such a way that a center piece of about half or a third of the height of each of the neighboring perforated sheets remains free.

The exemplary embodiment reproduces an arrangement in which three perforated plates are provided in the diffuser for uniform gas distribution in the electrostatic dust extractor which is switched on. In this i'all the degree of throttling of perforated plate 4 and 4 'is constant over the entire cross-section. With perforated plate 4 '', a different throttling is required, as shown, for example, in Figure 5. In Figure 3, the reference symbols z and z “indicate the areas of different degrees of throttling.

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Schutζans "j odor

Claims (6)

? Ί 7 7 Γ7 - 6 - Protection claims 1) Diffuser-like inlet nozzle for electrostatic dust separators in horizontal construction in the manner of a four-sided truncated pyramid with built-in perforated sheets for even gas distribution without the bunker substructure, characterized in that the vertical opening angle & approx. 105 to 115, the horizontal opening angle / S is 40 to 110 °. , HNEt2) gas inlet nozzle preferably gekennzeic according to claim 1, characterized in ds, l3 the individual perforated plates (4 ^{1? 4! L)} at its lower end at a short distance above the lower wall of the diffuser to several v / inkelbleche (T) _5, are arranged at a distance of 10-20 cm, are removed. 3) gas inlet nozzle, preferably also according to claims 1 and 2, de.durch characterized in that the built-in perforated plates have an increasing throttling effect in the gas direction. 4) gas inlet nozzle, preferably also according to claims 1-3, characterized in that zv / ischen the perforated sheets (4, 4 ') Tertical radiation plate sections (9) are arranged in the lower and upper rope of the diffuser. - 7th 5) Gfaseintrittsstutzen, preferably also according to claims 1-4, characterized in that the ötrahlenblecha "o cuts (9) are arranged in sight and at the level of the bisector (10) of half the inlet angle ß. 6) gas inlet sstutz en, according to claims 4-5, characterized in that the radiant sheet sections 9 are each about a 'quarter''to a third of the height of the perforated plate.