DE102004029197A1 - Apparatus for separating foreign materials from circulating media, including sedimentation, magnetic treatment, mechanical filtration and degassing stages - Google Patents

Abstract

In apparatus for separating foreign materials from circulating media by multiple physical mechanisms, the medium is subjected to a variety of processing stages, i.e. in a sedimentation chamber (3), in magnetic fields (4, 9) and in a mechanical filter (10), and also degassed by passage through desorption bodies (13) to remove microbubbles.

Description

2 Introduction

The invention relates to a device according to 1 , as referred to in the preamble of claim 1. The hitherto known devices in which one or more physical separation systems are realized are known under the name sludge trap, filter, magnetic filter or micro gas bubble. Often the device name reflects the applied procedure. In these devices, the sedimentation, the effect of the magnetic field, the mechanical filtration and degassing are applied to Desorptionskörpern. Most, however, can only perform a few functions, so they do not cover the broad spectrum of needs of a circulating medium. Other disadvantages often show in their complex installation. For example, the sample-protected device (295 18 738.7) can only be connected to horizontally routed pipes through the inner media guide. This requires a lot of effort in installation practice. Since there is often a lack of space in technical centers, the assembly is a considerable effort. The piping to medium distributors usually have a vertical course. In addition, he lacks some features that can otherwise refine the circulation medium. In this device, for example, although air bubbles are eliminated, a degassing of the dissolved air in the thermodynamic limit range (pressure / temperature) of the circulation medium is not possible. The conventional strainer function on the principle of a mechanical filter with all its advantages and disadvantages such as formation of a filter cake as a result of which the flow resistance can increase to clogging. Combined micro bubble / sludge separators do not separate particles smaller than about 30-40 μm. Magnetic filters, one or more magnetic bars was installed. They represent an extension of the mudflap or a mud trap to catch the finest magnetic particles. However, their capacity is rather limited because of the relatively small effective magnetic surface area.

In the new device many of these are mentioned above Disadvantages lifted. About that It should also be with the device possible be the content of dissolved Reduce gases. It should be created a device in which the circulation medium on diverse Art can be processed.

3. Description

An embodiment of the invention is in the drawing 1 and will be described in more detail below.

It demonstrate:

1 : A cross-section of the device on which the components or the individual processes are clearly visible.

Section AA: View of the separating plate between the sedimentation ( 3 ) and the magnetic field chamber ( 4 ), from the first row of magnets ( 11 and 12 ) is formed. In addition, openings ( 7 ) through which the medium flows from the underlying chamber (after sedimentation).

cut B-B Shows the degassing chamber with the desorption bodies, the e.g. stellate Can form bristles.

The pumped medium is removed from the cycle to separate the coarse impurities as possible sediments into the sedimentation chamber ( 3 ) of the device 1 initiated. The residence time can here according to the needs of the respective use or medium by the choice of the chamber size ( 3 ).

Furthermore, the medium flows out of the openings ( 7 ) of the floor panel ( 6 ), it passes through the strong magnetic field of the first magnetic plane ( 11 ). The flow rate with which the chamber ( 3 ) can be determined by the nominal size of the device or according to the requirements of the medium to be cleaned by determining the opening size ( 7 ) to get voted.

In the magnetic field chamber ( 9 ) Durchflußweitlung by the Querschnitterweiterung what the adhesion of the finest suspended matter to the magnet ( 12 ) favors. Non-magnetic, undefined impurities are deposited on the screen ( 10 ) separated. Here too, it is possible to determine the filtration sharpness or the protection by the choice of the mesh size.

To promote the medium degassing is in the overlying chamber ( 5 ) a braid body or radially set bristles ( 13 ). These ( 13 ) have the effect of desorption seeds to release the finely divided, dissolved gases from the medium. The gases are released via the venting sleeve ( 14 ) discharged through a vent valve of conventional design to the outside.

The medium returns through the connector ( 1 ) back into the circulation.

The Rückständeablaß carried by the Abschlammstutzen ( 15 ) to which a valve of conventional design can be mounted.

• – Ein Gerät, 1 das mehrere Aufbereitungsfunktionen eines Systemmediums inne hat.
• – Der Eigendruckverlust ist und bleibt in seiner Betriebsdauer gering.
• – Die meisten Kreislaufverunreinigungen werden im Vorfeld des mechanischen Siebes (10) separiert damit kein Filterkuchen entsteht. Weder wird die Standzeit beeinträchtigt noch nimmt der Druckverlust zu.
• – Alle mitgeführten groben und feinkörnigen Fremdpartikel, die in der Bauzeit in die Rohre gelangt sind, oder die feinsten Schwebestoffe, die während des Betriebes entstehen, werden gleichermaßen aus dem Kreislaufsystem separiert.
• – Verunreinigungen kleinerer Dichte, die weder aussedimentieren, noch an den Magneten haften bleiben, werden am Sieb (10) ausgefiltert: Von den kleinsten Partikel (kurz nach dem „Augenblick des Entstehens" um 1 μm) bis zu den sedimentierbaren Größen.
• – Dieses Gerät funktioniert auch als Entgaser. Aus dem Medium wird je nach dem physikalischen Zustand (Druck und Temperatur) zum größten Teil das aufgelöste Gas freigesetzt.
• – Es können auf den jeweiligen Fremdpartikel- oder Entgasungsbedarf optimalisierte Geräte gebaut werden.
• – Chemischen Zusätze sind für die Mediumaufbereitung nicht erforderlich.
• – Der Schlamm-/Gasabscheider wird über einen standarisierten Anschluß an beliebig verlaufende Rohrleitungen angeschlossen.

Here are shown the advantages of the device built according to the main claims:

• - A machine, 1 which has several editing functions of a system medium.
• - The self-pressure loss is and remains low in its service life.
• - Most of the circulatory contaminants are in the run-up to the mechanical sieve ( 10 ) separates so that no filter cake is formed. Neither the service life is impaired nor does the pressure loss increase.
• - All entrained coarse and fine-grained foreign particles that have come into the pipes during construction, or the finest suspended matter that arise during operation are equally separated from the circulatory system.
• - Smaller density contaminants that neither sediment nor adhere to the magnet are 10 ) filtered: from the smallest particles (shortly after the "moment of emergence" by 1 μm) to the sedimentable sizes.
• - This device also works as a degasser. Depending on the physical state (pressure and temperature), most of the dissolved gas is released from the medium.
• - It can be built on the respective Fremdpartikel- or degassing optimized devices.
• - Chemical additives are not required for the medium preparation.
• - The sludge / gas separator is connected via a standardized connection to arbitrarily extending pipelines.

Claims (8)

A device after 1 for the separation of foreign substances from circulating media according to several physical mechanisms acting characterized in that the medium is processed in a variety of ways, in the sedimentation chamber ( 3 ), in the magnetic fields ( 4 . 9 ), on the mechanical filter ( 10 ), in addition, the flowing medium undergoes outgassing of desorption bodies ( 13 ) (Separation of microbubbles). A device according to the preceding claim, characterized in that the medium after entry ( 1 ) into the device 1 a calming chamber ( 3 ) is sent to Aussedimentation. A device according to one of the preceding claims, characterized in that the medium when leaving the sedimentation chamber ( 3 ) through the openings ( 7 ) a strong magnetic field ( 4 ) crosses at a convenient speed. A device according to any one of the preceding claims, characterized in that further, by a cross-sectional widening, the settling chamber ( 9 ) is flowed through with a completely enclosed magnetic field. A device according to any one of the preceding claims, characterized in that the medium comprises on its way a mechanical filter ( 10 ) happens. A device according to one of the preceding claims, characterized in that the medium before leaving the device a chamber with germs (Desorptionskörpern) ( 13 ) flows through to promote the outgassing. A device according to any one of the preceding claims, characterized characterized in that they without a special installation effort on a standardized connection both to a vertical as well as a horizontally extending pipeline independently from the flow direction can be connected. A device according to any one of the preceding claims, characterized characterized in that The medium is treated purely physically.