DD259799B1 - ARRANGEMENT OF INSULATION BOLTS FOR THE ELECTRICAL INSULATION OF THE SUPPORT STRUCTURE OF THE SPRUE SYSTEMS IN ELECTRICALLY SEPARATORS - Google Patents

Description

For this 1 Soite drawing

Field of application of the invention

According to the invention, the arrangement of insulating soles from the submarine membrane as well as the assignment of structural solonton to the erosion of spray solomon in gas chromatographic horn with temporaturon of gas-dust mixture of> 300 ⁰ C, insbosondoro in Boroich, carried out by dlo descender docks. It is bosondors goolgnot for don use untortchnologlschon Bodingungon, which are gokonnzolchnot by hochslodondo Kompononton in the gas stream, sowio for oin hohos voltage nvovo dor oingospolston oloktrlschon Enorglo and / oror doron impulsförmlgo feed In don Hoißgasoloktroabschoiclor.

Characteristic of the known technical solutions

Bot the Golfer's Problom clor mangolndon elktrlschon Fostigkoit dor hollow cylindrical odor conical post insulator of quartz or ceramic, dlo the spray systom on dom housing abtrdgon, at higher temperatures

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Conventional hollow cylindrical or conical support insulator ceramic vorlioron their Isolationselgenschafton at Tomporaturen> 250 ⁰ C and destroyed. The use of post insulators made of quartz, whose Temporaturbeldstbarkeit is much higher, are due to the mechanical load capacity limits.

In order to eliminate the dependence of the insulation capacity of the post insulators on the temperature of the gas stream in the electrostatic precipitator, mohrero possibilities are known. One possibility is to set up the support insulators completely outside the influence boroicho of the Temporaturfeldes the gas stream. The disadvantage here is the required large construction costs. In addition, this solution is unsuitable for process gases with high dew points.

Furthermore, post insulators are rinsed with mlttol's purified process gas or air. This solution is undesirable in many cases and leads to corrosion phenomena in the flow region of the purging gas when non-heated purge gas is used.

In WP 129407 a seal of the interior of hollow post insulators is described, which keeps the process gas and thus the condensing constituents away from the supporting post insulator. As a passage through the Abscheiderdecke a quartz tube is used, which is fixed in a self-contained jig.

This arrangement has the disadvantage that the distance of the grounded parts to the power supply conductor is low and the quartz tube, which must be electrically insulated, is acted upon in the region of the clamping by high temperatures. The result is that the Quarzrchr is penetrated by the electric field.

Object of the invention

The object of the invention is to find an arrangement of Isolationskörporn for the removal of the spray system in electrostatic precipitators, especially in hot gas electrostatic precipitators, which eliminates the aforementioned disadvantages, in which the proven mechanical properties of the ceramic material are connected to the temperature-resistant electrical properties of quartz and PTFE , which can be universally used and retrofitted into existing systems without much effort, which requires no larger space or larger passage openings than before and prevents the dew point, especially in high-boiling components in the process gas.

Wüson dor ürllndung

The object of the invention is to provide an isolator assembly for clot removal in the eloxal obschoidorn, insbosondoro in the ophthalmologic solubscholclorn, which is supplemented by the isolatlonsmatorlal with doflnlortor form, adapted by ontsprochondo constructsolomonto In the whole arrangement is opened, that is, the spray system becomes tragondo support insulator from dom dirokton Elnllussbutolch dos Gusstromos gonommon, Indom dus thermowell out of chair, which is usually under the hollow support insulator uncoordnot, is placed in the mooring room of the support insulator and dlo Konstruktlonsolomonto dos Stützisolator on dom so ontstundonon sockol nngoordnot wordon., The isolutlonskörporunordnung bostoht from olnor abgorundoton, clon A (| uipolontiallinion dos oloklrlschon Foldos angopusston Annular Clamping Device, which is installed in quartz heat protection tube made of quartz, which both in gas stream as well as me in don on the jig stohondon support insulator, is protected by the heat protection tube, which is supplied with power, and carried out in the diarrhea and inner wall of the thermo-protective tube In the Ooroich dor clamping ooi cylindrico úrrloro made of PTFE, dosson Loltfählgkolt nnniiliurnd tomporaturunabhänglg is angeobrachtg, so as by degradation dor oloktrlschon Foldstärko also bol hohon Tomporaturon in the gas stream punched through to vormoidon. Around the PTFE pipe of the dor dirkton heat pool flow in the In don Eloktronbscholdor olntauchondon Ooroich dor insulation body arrangement, and hlor bosondors dor Wärmololtung dos support tube, fornzuhalton, will untorhalb dos PTFE tube tube quartz tube ongoordnot.

The Woson dor invention bostoht thus in the function of the dor sealing and dor oloktrischon isolation dor implementation to tronnon and dio oloktrischo Dnrrioro of PTFE and the support insulator before to hohor Tomporatur to scluHzon. The dios is supported by the fact that in dom on dom heat pipe and doin on dom support insulator onliogondom Dockol opening are arranged, dio oino air circulation ormöglichon possible. To the gas space both the support insulator and the heat protection tube gas-tight vorschlosson and thus the Barrioro made of PTFE and the support insulator only heat conduction over the heat protection pipe possible.

embodiment

Dio invention will be below on hand einos. Example will be explained in more detail. The accompanying drawing shows a section through dio Isolationskörperanordnung and deron arrangement in the Abscheidordecke. The preferably made of ceramic material hoho cylindric support insulator 1 is on einor Zentriorenden annular base plate 2, which is on a projecting into the room 3 Poclost 4, which simultaneously diont as a protective tube 5, is arranged.

This protective tube 5 is attached to the bearing Abschoiclordecko 6 and immersed in the gas space 7 a. On the base plate 2 is a the Aquipotentiallinien the electric field adapted rounded annular clamping device 8 is fixed, the lower part 8.1 has a recess in the conductive packing rings 9 has been inserted. By introducing a thermal protection tube 10 made of quartz in the interior 11 of the support insulator 1 and contraction of the lower part 8.1 with the upper part 8.2 of the clamping device 8, the interior 11 of the support insulator 1 to the gas space 7 is sealed.

Through the heat protection tube 10, which dips below the protective tube 5 in the gas space 7, the support rod 12 is guided in cylindrically symmetrical axis arrangement. To the gas space 7, the heat protection tube 10 is sealed by a lower cap 13, which is designed to seal the gap around the support rod 12 as a stuffing box 14, wherein the edge of the cap 13 after aligning the spray system with heat-resistant mass 15, such as putty, is shed.

About the support rod 12, a PTFE tube 16 is drawn within the heat protection tube 10 for weakening the electric field in the region of the clamping device 8, which is supported to reduce the heat transfer from the gas space 7 on a quartz tube 17.

The PTFE tube 16 is centered at the top and bottom and the quartz tube 17 at the top by PTFE profile rings 18, while the

Centering ring 19 made of heat-resistant material, such as asbestos.

The heat shield tube 10 is sealed within the post insulator 1 by an upper cap 20 provided with openings 21 and a sleeve 22 for a compression spring 23.

By a nut 24 which is screwed onto the support rod 12, which is tightened on a fixed as a counter-pressure point on the support rod 12 ring 25 stuffing box 14 and the heat protection tube 10 sealed to the gas chamber 7, wherein the compression spring 23 constantly maintains a contact pressure. On insulator lid 26, which is provided with openings 21, via a ball nut 29 did support rod 12, to which the spray system hangs attached.

Claims (1)

-1- 2B9 799 'claim: Arrangement of isolotlone bodies for oloktrlschon isolation of the high voltage leitondon Support rod dos Sprühsystoms of Eloktroabscholdorn, Insbosondoro In the area of the passage opening by dlo tragondo Abschordordocko and the Stromschutzrohres, are used in the rohrförmlgo after unton In don Qasraum Keramlkstützlsolatoron, characterized in that oin foldstörkonschwöchendos and rohrförmlges , known per se heat protection tube (10) and a diameter in each case klolneres quartz tube (17) and a PTFE tube (16) coaxially along the Tragstango (12) In dlo Luftstrocko between support insulator (1), passage opening and current protection tube (B) on the one hand and the support rings (12) on the other hand, is introduced.