DE1131951B - Cone-shaped perforated screen for installation in pipelines - Google Patents

Cone-shaped perforated screen for installation in pipelines

Info

Publication number
DE1131951B
DE1131951B DEZ5707A DEZ0005707A DE1131951B DE 1131951 B DE1131951 B DE 1131951B DE Z5707 A DEZ5707 A DE Z5707A DE Z0005707 A DEZ0005707 A DE Z0005707A DE 1131951 B DE1131951 B DE 1131951B
Authority
DE
Germany
Prior art keywords
cone
pipelines
perforated screen
installation
screen
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
DEZ5707A
Other languages
German (de)
Inventor
Dipl-Ing Carl Herbert Zikesch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DEZ5707A priority Critical patent/DE1131951B/en
Publication of DE1131951B publication Critical patent/DE1131951B/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/4609Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
    • B07B1/469Perforated sheet-like material
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/24Preventing accumulation of dirt or other matter in the pipes, e.g. by traps, by strainers

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combined Means For Separation Of Solids (AREA)

Description

Kegelförmiges Lochsieb zum Einbau in Rohrleitungen In vielen Fällen müssen in Rohrleitungen für strömende Medien Siebe eingebaut werden, die vor allen Dingen grobe Verunreinigungen zurückhalten sollen. Solche Siebe müssen z. B. vor Arbeitsmaschinen in Rohrleitungen eingebaut werden, auch werden solche Siebe in Dampfleitungen eingebaut, um zu vermeiden, daß grobe Fremdkörper in die Turbinenschaufeln geraten.Conical perforated screen for installation in pipelines In many cases must be installed in pipelines for flowing media screens, in front of all To hold back coarse impurities. Such sieves must, for. B. before Working machines are installed in pipelines, and such sieves are also used in Steam pipes installed to prevent large foreign bodies from getting into the turbine blades devices.

Solche Siebe können wegen der hohen Beanspruchung im allgemeinen nicht in bei sonstigen Sieben üblicher Bauart aus Drahtgeflecht hergestellt werden, sondern sie werden meistens in der Weise gefertigt, daß halbkugelschalen- oder kegehnantelförmige Metallkörper derart mit Bohrungen versehen werden, daß der Gesamtquerschnitt der Bohrungen möglichst groß ist. Die so hergestellten Siebe müssen außerordentlich kräftig sein, da bei hohen Strömungsgeschwindigkeiten schwerere Fremdkörper mit außerordentlicher Wucht gegen diese Siebe geschleudert werden. Auch ist zwischen der Vorder- und der Rückseite solcher Siebe meist eine Druckdifferenz vorhanden, die eine hohe zusätzliche Beanspruchung bewirkt.Such sieves can generally not because of the high stress are made in the usual design of wire mesh in other screens, but they are mostly made in such a way that hemispherical or conical shape Metal bodies are provided with holes in such a way that the total cross-section of the Holes is as large as possible. The sieves produced in this way must be extraordinary Be strong, as heavier foreign bodies are carried along at high flow velocities extraordinary force are thrown against these sieves. Also is between there is usually a pressure difference between the front and the back of such screens, which causes a high additional stress.

Um die Druckdifferenz so klein wie möglich zu halten, müssen die Siebe einen möglichst großen Durchflußquerschnitt aufweisen, wobei im Interesse einer guten Fangwirkung der Durchmesser jedes Loches möglichst klein sein soll. Das erfordert entweder eine Erweiterung der Leitung für die Unterbringung großflächiger Plansiebe oder auch eine langgezogene kegelförmige Ausbildung des Siebes. Zwischea den einzelnen Bohrungen eines solchen Siebes muß jedoch genügend Materialquerschnitt vorhanden sein, um die oben geschilderten Kräfte sicher aufnehmen zu können, denn beim Bruch eines solchen Siebes wäre der Schaden noch größer, als dieser ohne Sieb durch Fremdkörper angerichtet werden könnte. Die Bohrungen wurden in der herkömmlichen Form so durchgeführt, daß senkrecht zur Kugelschalenfläche oder zum Kegelmantel Löcher gebohrt werden in den der erforderlichen Festigkeit entsprechenden Abständen.In order to keep the pressure difference as small as possible, the sieves must have the largest possible flow cross-section, in the interest of a good catching effect, the diameter of each hole should be as small as possible. That requires either an extension of the line to accommodate large flat screens or an elongated conical design of the screen. Between the individual However, there must be enough material cross-section to drill holes in such a sieve in order to be able to safely absorb the forces described above, because in the event of a break With such a sieve, the damage would be even greater than that of foreign bodies without a sieve could be done. The drillings were carried out in the conventional manner in such a way that that holes are drilled perpendicular to the spherical shell surface or to the surface of the cone at the intervals corresponding to the required strength.

Die Erfindung sieht eine andere Ausgestaltung von kegelförmigen Lochsieben vor. Sie besteht darin, daß bei einem kegelförmigen Lochsieb mit in zur Kegelachse konzentrischen Kreisen angeordneten und in Umfangrichtung gegeneinander versetzten Bohrunge:. die Achsen der Bohrl.ugen abwechselnd parallel und senkrecht zur Kegelachse gerichtet sind. Dadurch wird neben einer guten Ausnutzung des stehenbleibenden Siebmaterials zur Erzielung einer hohen Festigkeit des Siebes auch noch eine geräuschdämpfende Wirkung erreicht. Wegen der in Lochsieben der erwähnten Art meist vorhandenen hohen Strömungsgeschwindigkeiten werden diese Siebe nach ihrem Einbau z. B. in Dampfleitungen zu Schallsendern, durch welche Dampfsäulen in den wie Resonatoren wirkenden Leitungen zu Schwingungen angeregt und sehr störende Geräusche hervorgerufen werden können. Die erfindungsgemäße Anordnung der Bohrungen in einem Kegelsieb bewirkt eine erhebliche Verminderung dieser Geräusche, da die Achsen der Bohrungen abwechselnd parallel und senkrecht zur Gegenachse gerichtet sind. Die aus den zur Kegelachse senkrechten Bohrungen ausströmenden Dampfstrahlen werden von den aus den zur Kegelachse parallelen Bohrungen ausströmenden Dampfstrahlen abgelenkt. Auf diese Weise ergibt sich neben der Fangwirkung auch eine erhebliche geräuschdämpfende Wirkung des erfindungsgemäßen Lochsiebes.The invention provides another embodiment of conical perforated screens before. It consists in the fact that with a conical perforated screen with in to the cone axis arranged concentric circles and offset from one another in the circumferential direction Boreholes :. the axes of the drill holes alternately parallel and perpendicular to the cone axis are directed. This not only makes good use of the remaining sieve material to achieve a high strength of the screen also a noise-dampening Effect achieved. Because of the high levels usually present in perforated sieves of the type mentioned Flow velocities are these sieves after their installation z. B. in steam pipes to sound transmitters, through which columns of steam in the lines that act like resonators stimulated to vibrations and very annoying noises can be caused. The inventive arrangement of the bores in a conical screen causes a considerable Reduction of these noises, since the axes of the bores are alternately parallel and are directed perpendicular to the opposite axis. The from the perpendicular to the cone axis Steam jets flowing out of the bores are controlled by the jets parallel to the cone axis Bores deflected steam jets flowing out. In this way it results in addition the catching effect also has a significant noise-damping effect of the invention Perforated screen.

In der Zeichnung zeigt Abb. 1 beispielsweise einen Längsschnitt durch eine Ausführungsform des erfindungsgemäßen Lochsiebes.In the drawing, Fig. 1 shows, for example, a longitudinal section through an embodiment of the perforated screen according to the invention.

Abb. 2 ist ein Querschnitt nach Linie A -A der Abb. 1. In den Abbildungen bedeutet 1 den kegelmantelförmigen Siebkörper, 2 parallel zur Kegelachse gerichtete Bohrungen und 3 senkrecht zur Kegelachse ausgeführte Bohrungen. Wie die Abb. 2 zeigt, ist der äußere Kegelmantel treppenförmig ausgebildet. Die radialen und die achsparallelen Bohrungen 2 und 3 liegen dicht aneinander. Trotzdem bleibt von dem Siebkörper genügend Material stehen, um eine ausreichende Festigkeit des Siebes zu gewährleisten.Fig. 2 is a cross-section along line A-A of Fig. 1. In the figures, 1 denotes the cone-shaped screen body, 2 bores directed parallel to the cone axis and 3 bores made perpendicular to the cone axis. As shown in Fig. 2, the outer cone shell is step-shaped. The radial and axially parallel bores 2 and 3 are close to one another. Nevertheless, enough material remains from the screen body to ensure sufficient strength of the screen.

Claims (2)

PATENTANSPRÜCHE: 1. Kegelförmiges Lochsieb zum Einbau in Rohrleitungen, insbesondere in Dampfleitungen, mit in zur Kegelachse konzentrischen Kreisen angeordneten und in Umfangrichtung gegeneinander versetzten Bohrungen, dadurch gekennzeichnet, daß die Achsen der Bohrungen (2, 3) abwechselnd parallel und senkrecht zur Kegelachse gerichtet sind. PATENT CLAIMS: 1. Conical perforated screen for installation in pipelines, especially in steam lines, with holes arranged in circles concentric to the cone axis and offset from one another in the circumferential direction, characterized in that the axes of the bores (2, 3) are directed alternately parallel and perpendicular to the cone axis . 2. Kegelförmiges Lochsieb nach Anspruch 1, dadurch gekennzeichnet, daß die Außenfläche und/oder die Innenfläche des Siebkegels im Radialschnitt treppenförmig verlaufen und die Bohrungen (2, 3) des Siebes jeweils senkrecht in die Stufenflächen der Treppe münden. In Betracht gezogene Druckschriften: Französische Patentschrift Nr. 377 449.2. Cone-shaped perforated screen according to claim 1, characterized in that that the outer surface and / or the inner surface of the sieve cone in a radial section step-shaped run and the holes (2, 3) of the screen each perpendicular in the step surfaces lead to the stairs. Documents considered: French patent specification No. 377 449.
DEZ5707A 1956-08-16 1956-08-16 Cone-shaped perforated screen for installation in pipelines Pending DE1131951B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEZ5707A DE1131951B (en) 1956-08-16 1956-08-16 Cone-shaped perforated screen for installation in pipelines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEZ5707A DE1131951B (en) 1956-08-16 1956-08-16 Cone-shaped perforated screen for installation in pipelines

Publications (1)

Publication Number Publication Date
DE1131951B true DE1131951B (en) 1962-06-20

Family

ID=7619532

Family Applications (1)

Application Number Title Priority Date Filing Date
DEZ5707A Pending DE1131951B (en) 1956-08-16 1956-08-16 Cone-shaped perforated screen for installation in pipelines

Country Status (1)

Country Link
DE (1) DE1131951B (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR377449A (en) * 1907-04-23 1907-09-06 Ed Jesie Hannold Pipe coupling

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR377449A (en) * 1907-04-23 1907-09-06 Ed Jesie Hannold Pipe coupling

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