DE2052929A1 - Vessel for aggressive media - with three layer wall - Google Patents

Vessel for aggressive media - with three layer wall

Info

Publication number
DE2052929A1
DE2052929A1 DE19702052929 DE2052929A DE2052929A1 DE 2052929 A1 DE2052929 A1 DE 2052929A1 DE 19702052929 DE19702052929 DE 19702052929 DE 2052929 A DE2052929 A DE 2052929A DE 2052929 A1 DE2052929 A1 DE 2052929A1
Authority
DE
Germany
Prior art keywords
vessel
channels
liner
plates
lining layer
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.)
Granted
Application number
DE19702052929
Other languages
German (de)
Other versions
DE2052929B2 (en
DE2052929C3 (en
Inventor
Igor W.; Kotow Wladimir V.; Pimenow Wiktor A.; Ternikow Anton K.; Egorow Walerij P.; Sewerodoneck Kaminskij (Sowjetunion). MP
Original Assignee
Sewerodoneckij filial nautschno-issledowatelskowo i konstruktorskowo instituta chimitscheskowo maschwinostrojenija, Sewerodoneck (Sowjetunion)
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 Sewerodoneckij filial nautschno-issledowatelskowo i konstruktorskowo instituta chimitscheskowo maschwinostrojenija, Sewerodoneck (Sowjetunion) filed Critical Sewerodoneckij filial nautschno-issledowatelskowo i konstruktorskowo instituta chimitscheskowo maschwinostrojenija, Sewerodoneck (Sowjetunion)
Priority to DE19702052929 priority Critical patent/DE2052929C3/en
Publication of DE2052929A1 publication Critical patent/DE2052929A1/en
Publication of DE2052929B2 publication Critical patent/DE2052929B2/en
Application granted granted Critical
Publication of DE2052929C3 publication Critical patent/DE2052929C3/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
    • B01J3/04—Pressure vessels, e.g. autoclaves
    • B01J3/046—Pressure-balanced vessels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/02—Apparatus characterised by being constructed of material selected for its chemically-resistant properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
    • B01J3/002—Component parts of these vessels not mentioned in B01J3/004, B01J3/006, B01J3/02 - B01J3/08; Measures taken in conjunction with the process to be carried out, e.g. safety measures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
    • B01J3/04—Pressure vessels, e.g. autoclaves
    • B01J3/048—Multiwall, strip or filament wound vessels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
    • B65D25/14—Linings or internal coatings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/02—Apparatus characterised by their chemically-resistant properties
    • B01J2219/0204—Apparatus characterised by their chemically-resistant properties comprising coatings on the surfaces in direct contact with the reactive components
    • B01J2219/0236—Metal based

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Arc Welding In General (AREA)

Abstract

The wall is constructed of three layers. The outer withstands the design pressure of the vessel and inner liner is of corrosion resistant material, e.g. Ti or high Ni alloy steel. The middle layer is of carbon steel and composed of plates which correspond to the plates constituting the inner corrosion resistant liner. The middle layer plates are loose and gaps between them form both circumferential and longitudinal channels. The inner liner is fully welded using inert gas blanket. Residual inert gas during welding also fills the channels between the plates of the middle layer. The channels are connected to a single opening in the closing flange and any discharge from it indicates a leaking weld of the inside liner. The top of the vessel consists of an outside flange with the top of the liner screwed in.

Description

GEFÄß FÜR AGGRESSIVE MEDIEN Die Erfindung bezieht sich auf chemische Einrich -ungen, insbesondere auf Gefäße füraggressive Medien. AGGRESSIVE MEDIA VESSEL The invention relates to chemical Equipment, especially for vessels for aggressive media.

Das Gefäß kann, z.B. als Reaktionsapparat zur Synthese von Harnstoff anwendbar sein, dessen Zwischenprodukte in der Schmelze aggressiv wirken. The vessel can, for example, be used as a reaction apparatus for the synthesis of urea be applicable, whose intermediates act aggressively in the melt.

Bekannt ist ein Gefäß für aggressive Medien (UdSSR-Urheberschein Nr. 223059), welches einem Außenkraftmantel hat, der von innen mit einer durch miteinander verschweißte Metallbleche, z.B. aus einem nichtrostenden Stahl, gebildeten Auskleidungsschicht belegt ist. A vessel for aggressive media is known (USSR copyright certificate No. 223059), which has an external force jacket that is interconnected from the inside with a welded metal sheets, e.g. a lining layer formed from a stainless steel is occupied.

Zwischen Außenmantel und Auskleidungsschicht liegt eine Zwischenschicht, die aus einzelnen miteinander nicht verschweißten Metallblechen besteht, deren Kantenspalte gegen Schweißnähte der Auskleidungsschicht versetzt aind und ein System kommunizierender Kanäle bilden, während die Zwischenschicht als Unterlage beim Schweißen der Auskleidungsschicht dient.Between the outer jacket and the lining layer there is an intermediate layer, which consists of individual metal sheets that are not welded to one another, their edge gaps offset against weld seams of the lining layer and form a system of communicating channels, while the intermediate layer serves as a base when welding the lining layer.

Beim bekannten Gefäß ist es unm:iglich, zur Bildung einer Auskleidungsschicht hochkorrosionsbestänallseitige Inertgaszuführung zur Schweißzone beim Schweißen> erfordernde Metalle (z.B. Titan, hochlegierten austenitischen nichtrostenden Stahl) zu verwenden, weil das Inertgas der Schweißnaht Seite der Zwischenschicht nicht zugeführt werden kann.In the case of the known vessel, it is not possible to use metals (e.g. titanium, high-alloy austenitic stainless steel) on the highly corrosion-resistant side of the inert gas supply to the welding zone during welding to form a lining layer, because the inert gas cannot be supplied to the weld side of the intermediate layer.

Der Erfindung wurde die Aufgabe zugrundegelegt, ein Gefäß zu entwickeln, bei welchem als Auskleidungsschicht Metalle hoher Korrosionsbeständigkeit zur Verwendung kommen können und Schweißnähte zwischen Blechen der Auskleidungsschicht eine hohe Korrosicnsbeständigkeit und Festigkeit besitzen.The invention was based on the object of developing a vessel in which metals of high corrosion resistance are used as the lining layer can come and weld seams between sheets of the lining layer have a high corrosion resistance and strength.

Diese Aufgabe wird dadurch gelöst, daB in einem Gefäß aggressive Medien erfindungsgemäß Schweiß- nähte von Blechen der Auskleidungsschicht Kanälen der Zwischenschicht sind.This object is achieved in that in a vessel aggressive media according to the invention welding seams of metal sheets of the lining layer channels of the intermediate layer are.

Dadurch kann das Inertgas der Schweißzone beim Schweißen von Blechen der Auskleidungsschicht zugeführt werden, welches Schweißnähte von hoher Festigkeit und Korrosionsbeständigkeit herzustellen ermöglicht. This allows the inert gas to enter the welding zone when welding sheet metal are fed to the lining layer, which welds of high strength and Making it possible to produce corrosion resistance.

Im folgenden wird die Erfindung anhand eines Ausführungs- beispiels untcr Bezug Zeichnung, die einen Längsschnitt durch ein erfindungsgemäßes Gefäß für aggressive Medien zeigt, häher erläutert.In the following the invention is based on an embodiment for example with reference to the drawing, which shows a longitudinal section through a vessel according to the invention for aggressive media, explained in more detail.

Das Gefäß für aggressive Medien hat einen Außenkraftmantel 1, Die Innenfläche des Kraftmantels 1 besitzt eine Auskleidungssohicht 2, welche durch miteinander verschweißte Bleche aus hochlegiertem nichtrostendem Stahl oder Nichteinenmetallen gebildet ist, Zwischen Eraft- mantel 1 und Auskleidungsschicht 2 ist eine Zwischenschicht 3 vorhanden. Die Zwischenschicht 3 besteht aus einzelnen miteinander nicht verbundenen Blechen, z.B. aus normalem Kohlenstoffstahl, Die Bleche der Zwischenschnicht 3 sind derart angeordnet, daß sieh Spalte 4 zwischen deren Längs-und Querkanten ergeben.The vessel for aggressive media has an external power jacket 1. The inner surface of the power jacket 1 has a lining layer 2, which is made of high-alloy stainless steel sheets welded to one another Steel or non-ferrous metal is formed, between Eraft- jacket 1 and lining layer 2, an intermediate layer 3 is present. The intermediate layer 3 consists of individual sheets that are not connected to one another, for example normal carbon steel. The sheets of the intermediate layer 3 are arranged in such a way that gaps 4 result between their longitudinal and transverse edges.

Die Spalt-e 4 bilden ein System kommunizierender Kanäle. The gaps 4 form a system of communicating channels.

Die Bleche der Auskleidunqgsschicht 2 liegen so, daß die deren Kanten verbindenden Schweißnähte > den Kanälen der Zwischenschicht 3 angeordnet sind . Die Stirnfläche der Auskleidungsschicht 2 wird durch eine mit den Blechkanten der Auskleidungsschicht 2 verschweißte Buchse 6 gebildet. Die Buchse 6 ist in eine Nut des Kraftmantels 1 gesetzt.The sheets of lining layer 2 are so that the weld seams connecting their edges> the channels of the intermediate layer 3 are arranged. The end face of the lining layer 2 is formed by a bush 6 welded to the sheet metal edges of the lining layer 2 educated. The socket 6 is placed in a groove in the power jacket 1.

Der Stirnteil der Buchse 6 dient zum Eingriff mit einem hier nicht gezeigten Gefäßverschluß. The front part of the socket 6 is not used here to engage with one shown vascular occlusion.

Im Kraftmantel 1 ist ein durchgehender Kanal 7 vor- handen, der mit einem durch Spalte 4 gebildeten Kanalsystem kommuniziert Das durch Spalte 4 gebildete Kanalsystem dient wahrend des Betriebs des Gefäßes zur Dichtheitskontrolle der Auskleidungsschicht 2. Die Anordnung der Schweißnähte 5 durch Spalte 4 gebildeten Kanäle ermöglicht es, ein Inertgas, z.B. Argon, der Schweißzone beim Schweißen von Blechen der Auskleidungsschicht 2 zuzuführen und unter Benutzung von Argon als Medium zu schweißen. Dadurch kann man als Materialien zur Bildung der Auskleidungsschicht 2 Titan und andere korrosionsbeständie, aber schwer schweißbare lvietalle verwenden sowie die Schweißnahtgüte wesentlich steigern.A continuous channel 7 is provided in the power jacket 1. hand, which communicates with a channel system formed by column 4 The channel system formed by gap 4 is used to check the tightness of the lining layer 2 during operation of the vessel. The arrangement of the welds 5 Channels formed by column 4 make it possible to supply an inert gas, for example argon, to the welding zone when welding metal sheets of the lining layer 2 and to weld using argon as the medium. As a result, titanium and other corrosion-resistant, but difficult to weld, aluminum can be used as materials for forming the lining layer 2, and the quality of the weld seam can be significantly increased.

Im vorliegenden Gefäß können außerdem Bleche cier Zwischenschicht 3 aus billigen Stahlsorten hergestellt werden, weil sie an der Bildung der Schweißnähte der Bleche der Auskleidungsschicht 2 keinen unmittelbaren Anteil nehmen. In the present vessel, metal sheets can also have an intermediate layer 3 are made from cheap steel grades because they participate in the formation of the welds of the sheets of the lining layer 2 do not take part directly.

Claims (1)

PATENTANSPRÜCH: PATENT CLAIM: Gefäß für aggressive Medien, welches einen Außenkraftmantel hat, der von innen mit einer durch miteinander geschweißte Metallbleche gebildeten Auskleluungsschicht belegt ist, wobei zwischen Außenkraftmantel und Auskleidungsschicht eine Zwischenschicht vorliegt, die aus einzelnen miteinander nicht verbundenen Blechen besteht, deren Kantenspalte ein System kommunizierender kanäle bilden, d a d u r c h g e k e n n z e i c h n e t daß die Schweißnähte (5) von Blechen der Auskleidungs- schicht (2) Kanälen der Zwischenschicht (3) L e e r s e i t eVessel for aggressive media, which has an external force jacket, which is covered from the inside with a cladding layer formed by welded metal sheets, with an intermediate layer between the external force jacket and the lining layer, which consists of individual sheets that are not connected to one another, the edge gaps of which form a system of communicating channels, characterized in that the weld seams (5) of metal sheets of the lining layer (2) Channels of the intermediate layer (3) L eerseite
DE19702052929 1970-10-28 1970-10-28 Container for aggressive media Expired DE2052929C3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19702052929 DE2052929C3 (en) 1970-10-28 1970-10-28 Container for aggressive media

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702052929 DE2052929C3 (en) 1970-10-28 1970-10-28 Container for aggressive media

Publications (3)

Publication Number Publication Date
DE2052929A1 true DE2052929A1 (en) 1972-05-04
DE2052929B2 DE2052929B2 (en) 1973-07-26
DE2052929C3 DE2052929C3 (en) 1974-02-28

Family

ID=5786404

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19702052929 Expired DE2052929C3 (en) 1970-10-28 1970-10-28 Container for aggressive media

Country Status (1)

Country Link
DE (1) DE2052929C3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996009136A1 (en) * 1994-09-22 1996-03-28 Snamprogetti S.P.A. Method for restoring the functionality of equipment subjected to heavy corrosion in a plant for the production of urea

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3743820A1 (en) * 1986-12-30 1988-07-14 Basf Ag Safety system of a high-pressure reactor for the manufacture of aggressive media

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996009136A1 (en) * 1994-09-22 1996-03-28 Snamprogetti S.P.A. Method for restoring the functionality of equipment subjected to heavy corrosion in a plant for the production of urea
US6010669A (en) * 1994-09-22 2000-01-04 Snamprogetti S.P.A. Method for restoring the functionality of equipment subjected to heavy corrosion in a plant for the production of urea

Also Published As

Publication number Publication date
DE2052929B2 (en) 1973-07-26
DE2052929C3 (en) 1974-02-28

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
E77 Valid patent as to the heymanns-index 1977
8339 Ceased/non-payment of the annual fee