DD270639A3 - CHIMNEY FOR THE TREATMENT OF GAS-FORM FABRIC STROMES - Google Patents

Abstract

The invention relates to a chimney for the treatment of gaseous material flows, which in particular result from the combustion of solid, liquid and gasfoermiger fuels. The fireplace is universally applicable both for the new construction as well as for the reconstruction and modernization of exhaust gas equipment. The goal is essentially that the fireplace can be operated as a jet tower, industrially prefabricated in simple and efficient manner in typified series and can be assembled and set up on site with little effort. According to the invention, the chimney is constructed from similar superimposed stackable mounting elements, preferably made of concrete, with an axial opening and several coaxial openings, which are interconnected by radial and coaxial channels. In the axial and / or Koaxialdurchbruechen socket pipes made of mineral building materials, Strahldueseneinheiten and storage volumes are provided for the washing liquid.

Description

For this 2 pages drawings

Field of application of the invention

The invention relates to a chimney for the treatment of gaseous streams, which in particular result from the combustion of solid, liquid and gaseous fuels. It is universally applicable for all performance ranges of incineration plants, preferably up to a heat output of 12 MW, both for new construction as well as for the reconstruction and modernization of exhaust gas equipment. The field of application of the invention extends increasingly to city centers and industrial agglomerations in which the problems of environmental protection, the use of waste heat and the increase in useful life of existing structures with effective technological technological manufacturing methods are solvable. The invention can be easily integrated into industrial manufacturing processes in the form of a complex structural unit.

Characteristic of the known technical solutions

There are a variety of Naßbehand; Ngsvorfahren and devices with direct contact between combustion exhaust gas and scrubbing liquid, which include a cleaning, primarily to reduce the environmen- polluting sulfur dioxide emission, and / or Värärückfjewinnung using various types of jet apparatus, auxiliary or auxiliary units and items with special geometry. Some system designs for small and large exhaust treatment plants are described, for example, in the specifications DE-AS 2462812, DH-OS 2424842, DE-AS 2512233, GB-PS 130667S and US-PS 3835796. All principle solutions presented in the literature have the disadvantage that they consist of several different components, such as Strahlt ear as a contact and reaction path for washing liquid and exhaust gas, liquid container for storing the washing liquid and for receiving and treating the discharged from the exhaust pollutant components, Schornstjinrohr for the discharge of animal cleaned and cooled exhaust gases into the atmosphere, be put together. This results u. a. numerous connecting and sealing elements between the assemblies as well as additional necessary components for fixing the position and static stabilization of the structure. Unfavorable is also that at least those jet pipe sections in which the maximum or an extremely high kinetic and heat specific energy density of the gas-liquid mixture is made of costly corrosion and high temperature resistant materials, such as stainless steel brands produced. Such design concepts for exhaust treatment plants with jet scrubber system are basically characterized by an extremely high material, manufacturing and assembly costs. The high production wall is characterized in particular by high quality manufacturing requirements.

An effective classification into existing objects with boiler systems or heat generating aggregate is mostly impracticable because of the highly differentiated performance ranges and the associated, extensively required jet washing and limning. In many cases retrofitting is even completely ruled out due to the limited space available.

Object of the invention

The aim of the invention is to provide a chimney for the treatment of gaseous streams, the al universal sprayer tower for new construction and reconstruction projects operable in a simple and efficient manner in typified series industrially prefabricated and at the site with less: expenses zusammenfügbar and set up ,

Explanation of the essence of the invention The object of the invention is to design the fireplace for the treatment of gaseous streams so that the prefabricated Components or subassemblies, subdivided into a minimized type or product range, during assembly at the place of use

can be combined to a space-saving, statically stable and functionally reliable building. Furthermore, a sufficient stability and attractive design of the fireplace is achieved without the use of additional construction elements.

In addition, on the one hand low-cost and easily available starting materials are used

and on the other hand ensures the simplest techno-technological realization conditions.

According to the invention, this object is achieved by the fact that the chimney with integrated jet washing system is of the same type Montageelomente, preferably made of concrete or other mineralisuhon building materials, with a perpendicular to the support surface of Mounting elements extending breakthrough, referred to as axial breakdown, and mohreren arranged in parallel Durchbrüchon referred to as coaxial breakthrough, has. The mounting elements preferably contain each at their Top introduced radial channels, which lead from the coaxial openings to axial breakdown, and introduced Coaxial, which create a connection between the coaxial openings. The mounting elements also have

at the end faces position fixing elements, preferably centering rings. Furthermore, located on one side of the axial and

Koaxialdurchbrüche muff-like extensions, in which socket pipes of mineral building materials, preferably from

stoneware, are arranged.

In a simple manner, in particular as preformable preformable mounting elements are on site to a tower-like Chimney stacked stacked and with additional components for functional realization of the jet washing system

completed during final assembly.

The jet pipe, d. H. the contact area of the pressurized washing liquid and the sucked uncleaned Exhaust gas as well as the discharge pipe for the cleaned exhaust gas are exclusively through the axial and coaxial openings

educated. In or on the last upper mounting element are one or more blasting nozzle.! easy to install. The coaxial and radial channels allow both all function and performance specific required connection variants between

Jet pipe and exhaust gas discharge pipe as well as the integration of piping for the operation of the Washing liquid circuit. The unneeded channels of the Montagoelemente are by means of prefabricated adapters or

- stones closed. The coaxial and axial openings of the last lower mounting element or the last lower

Mounting elements serve as a container, with appropriate corrosion protection lining or as a receptacle for prefabricated Container for storing and treating the washing liquid. The Brfindungsgemäße fireplace for reconstruction purposes is preferably in the context of the regular renewal of

to build existing chimney-heads on the healthy building fabric.

Such mantelpieces are expediently ausest 'th that depending on the existing chimney dimensions and Emission parameters some coaxial apertures (jet pipe) optionally equipped with jet nozzles and a specific

associated number of Koaxialdurchbrüch be used in the exhaust pipe to the atmosphere.

The flow channel formed by the axial breakthroughs of all the elements of the assembly acts as an extension of the flow channel

existing chimney channel communicating via the radial and coaxial channels in the jet tubes. This

Schornsteinkansl is only in the event of an accident, z. B. in case of defect of the pump used in the washing cycle, open, so

that the heating system with natural or separately forced Saugzugwirkung is still operable. Thus, the

Mounting elements are universally adapted to existing standard chimneys. The fireplace according to the invention with similar mounting elements for Neubauzwecke is on a foundation ¹ , built. The Size of the mounting elements and the necessary jet scrubber assemblies and parts are individually or in type or Series adapted to the performance of the associated heat generator. At the axial openings for exhaust gas discharge are

for example, serving as a steel tube coaxial apertures, which are assigned to a plurality of individually operable heat generators, connectable. Conversely, there is the possibility of several coaxial openings to the exhaust pipe as a

Jet tube serving axial breakthrough, which are associated with one or more individually operable heat generator,

to join.

Are the prescribed minimum levels for the discharge of purified exhaust gases to the atmosphere at some territorial Special cases can not be achieved by means of the functionally arranged Montageelementan7ahl, the breakthroughs

of the upper mounting element easily be extended by tubes.

embodiment

The invention will be explained in more detail below with reference to detailed examples, in which:

1 is a sectional view of a fireplace according to the invention for new construction project according to line l-l of Fig. 2nd Fig. 2: sectional view of a journals invention according to line H-II of Fig. 1st 3 shows a sectional view of a chimney according to the invention for reconstruction projects according to line IH-III of FIG 4 shows a sectional view of a mounting element according to the invention along the line IV-IV of FIG. 3

The chimney for new construction shown in Fig. 1 and 2 consists of a foundation part 23 and a plurality of similar mounting elements 1, which each contain a Axialdurchbruch 2, coaxial 3, radial channels 4, Koaxialk? Ridle 5 and centering 6. The mounting elements 1, the fittings 7 and the foundation part 23 are z. B. made of concrete. The axial openings of the mounting elements 1 are at least in the upper area with one or more sleeve pipes 19 made of mineral building materials, preferably glazed stoneware, in the upper area of the chimney. The sleeve extensions 20 serve for fastening or mounting. The radial ducts 4 establish the connection to the exhaust ducts formed from coaxial openings 3, which are connected to one another via coaxial ducts 5. In the arranged in the lower region of the chimney mounting elements 1 container 8 are mounted for receiving the washing liquid 18. The container 8 are connected by overflow pieces 22 with each other. The connected to the container 8 pipe 11 performs z. For example, to a recuperative heat exchanger, not shown, in which a large part of the enthalpy of the washing liquid 18 is transferred to a useful water flow Pump pressure sprays and thus sucks a certain amount of flue gas from the exhaust gas feed 12. The pipe 11 also serves for the discharge of aqueous chemical reaction or neutralization products.

After the intensive contact of washing liquid 18 and o'ern unbehandiltan exhaust gas 17 in the region of several Mounting elements 1 formed axial jet pipe flows the purified and up to the dew point or up in Dew point near cooled exhaust gas 16 via the radial channels 4 and Koaxialdurchb üche 3 to the outside. All surfaces of the mounting elements 1, which come with exhaust gas 16 and 17 or washing liquid 18 ir. Contact are with

a protective coating, preferably with bituminous paint systems and / or epoxy resin dispersions

Curing ability on fresh cement mortar to provide. Such corrosion protection coverings, which, for example, in Compound can be completed with PVC or PE film material, chen also waive the need for separate Container 8, d. H. if both the axial aperture 2, the coaxial apertures 3 as well as the open radial and coaxial channels 4,5

the mounting elements 1 and the completed by the foundation part 23 bottom surfaces are treated accordingly.

In d'i coaxial breakthroughs 3 are z. B. also not shown heat exchanger can be installed through which the fi for the Combustion required air is preheated by means of the residual heat of the exhaust gases 16, resulting in significant Efficiency improvements within the heat generation analysis result. In Fig. 1 and 4 is a fireplace for Rekonsiruktions- or Modarnisie.ijngszwecke, especially for schools, office buildings or

larger homes with heating systems for solid fuels, shown. The mounting elements 1 are the respective

Kaminquer cut adapted and typed for similar fireplaces. The preparation of the fireplace according to the invention is carried out by

manual assembly of the individual assemblies and parts in the roof area of the building, i. preferred in connection with the renovation of chimney pots, which is anyway necessary at certain intervals.

The first mounting element 1 is by a mortar joint 15 with the masonry 9, we'ches previously up to the strength

stable or undamaged masonry layers was removed, connected. In the coaxial channels 15, a prefabricated ring line 21 is laid, on the one hand, to the containers 8 and, on the other hand, to the pipeline 11, which are arranged in the chimney shaft. Thereafter, the placement of the second mounting member 1, the insertion of the container β and the connection of the overflow piece 22 to the pipe 11 takes place in conjunction with the setting of more

Mounting elements 1 are in a vertical strand of Koaxialdurchbrüche 3, in which the Abgasv: h ι is provided.

one or more sleeve pipes 19 introduced.

Before placing the last mounting member 1, which with a flap 14 and a closure piece 24th

is provided, a jet nozzle unit 13 is fixed, which is guided with a frost-free through the chimney shaft

Piping 10 is coupled for the supply of washing liquid 18. The pipeline 10 is through a radial channel. 4

placed. All unnecessary radial channels 4 are to be closed by means of fitting pieces 7 and appropriate mortar mixture.

The untreated exhaust gas 17 is sucked in, as a result of the jet nozzle unit 13 caused by the pulse exchange

in the area of the underlying pipe sections an intensive heat and mass transfer ι .- it the washing liquid 18 and leaves through the open Radiülkanäle 4 and coaxial 3 as cooled and purified exhaust gas 16 dan fireplace.

The cap 14 remains closed during the proper operation of the jet scrubber system and only becomes

in case of an accident or in the period of scheduled function settings.

Due to the possible single and multiple arrangement of jet nozzle units 13 chimneys different Performance be reconstructed by means of similar Montageelementa 1. The necessary Gesanitkostenaufwendungen represent a minimum because both an assortment reduced industrial prefabrication of Montagetlemente 1 and all components and parts as well as a simple installation on site in a rational orphan

is feasible.

An important advantage of the fireplace according to the invention is basically also that the stability and the

overall static stability under the influence of the known external loads (for example wind, climate) as well as a favorable shape

Shell profile of the building are given without the use of additional structural elements.

Claims (3)

1. chimney for treating gaseous streams, which is composed of individual assembly assemblies with integrated jet scrubber elements, characterized in that the chimney of vertically stacked similar mounting elements (1) with an axial aperture (2) and coaxial openings (3), which by radial channels (4) and coaxial (5) are interconnected, and that the mounting elements (1) are provided at its top and bottom with a Lagefixierungssegment. 2. chimney according to Anspruc η 1, characterized in that in the axial openings (2) and / or coaxial openings (3) sleeve pipes (19) made of mineral building materials and storage volumes for the washing liquid (18) are provided.