DE1444372A1 - Multi-tube evaporator - Google Patents

Description

Society Fives iille - Call, $ 7 Hue foontalivet, Paris 8 *

toehrfaohrohr - evaporator

The evaporators found in industry generally consist of a bundle of a large one Number of pipes, the limes of which are mostly placed on tubular plates. This tube bundle is fed with steam through various supply pipes, which around the outer scope of said bundle are distributed.

Such a type of supply brings with it the problem of the homogeneous distribution of the steam between the tubes, which the Form wood surface, it being desirable that this distribution with a minimum of stress losses

is achieved in order to achieve a high evaporation rate for the evaporator * set to ensure "

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'AuekOnfte am Fernapreoher and non-binding.

BATH

This «observation generally leads to the number of steam supply pipes also increase the number of in Increase the bundle of distributed pipes and create a steam path between the pipes, i.e. seen as a whole dme Qewioht de »'to raise Jerätes.

In addition, in numerous evaporators, the concentrated products which are to be recirculated or extracted are collected by a smock tube that runs through the bundle, the necessarily small Kurehtaesser * of this itonres representing a considerable load of the concentrated solutions above the upper tubular plate, to its drain to äestatten in this central tube. This amount of liquid above the upper tubular plate expresses itself in particular through an increase in the acnäcillohen teisperaturabff, namely the information of the xiriihun ^ the hydrostatic pressure of the solution in the iaetraoht drawn air Reduction in the evaporation capacity of the concentrate.

Finally, there is the space that the icon-centered plumbing above the pipe shape had lost for the separation of a little steam and entrained little liquid pipe.

The present invention makes it possible to overcome all of these disadvantages in whole or in part, separately or on the same side to switch off 9 0 9 8 12/0881

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U44372

The following description refers to "I am on" a vaporizer ■ dt «in« a single pleasure run, but the invention is also in dl cases d »r derate old several revolutions applicable,

In the present invention, there is an evaporator (FIg * l) from a: tube bundle 1 above the see an Itenpf chamber 2 is located. The level to be concentrated, the is inserted into the lower parts of the tube bundle, increases In the pipes »which form and will form the surface of the Hela after concentration through a circular overflow 5 teeming with people who are at Jni'ang de · HahrbUndele and ües «en berlaul'eohwelie 4 is at an« olohe height, the · die iumulaionssohlcht »cfle from this overflow threshold Is held above the tube bundle, it allows one achieve maximum evaporation rate "

This arrangement is advantageous, bored 1.) the Hühe the .uamlsion above the tubular plate for a is determined all i'.al aui UEN optimum value "acr duroh the iiuhe aar uberxaufschwelle the overflow Wiru.

;,) The developed length of the overflow is then seven until «tohnmai greater than never developed length of the over * run t: he VtiKiempfungsgertite «o with smock tube,

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3.) With an evaporator arranged in this way, let the middle one Path of the liquid above the upper pipe shape ilatte ie essentially twice shorter «Is der * der» loll The classic vaporizer is located, which reduces the feeling of enticing facial expression »

4.) the concentrated liquid is placed in a "rough" • ftWBelt «the ewUohen the tube bundle and the» KeiiteTiwntel the Dejopfkenswr lies »whose JXirehlMsquereehnitt non-existent four ί · «* 1 grueeer let« le der «der von den Kitt«! pipes * der kla »» lechen evaporator is beatloat.

Aue of the three dots listed next to "" results in eloa * dejm the height of the Eouleion above the upper tube-length plate al "can be regarded as constant" whether the dispensing amounts of the liquid which is to be consigned are, which are introduced into the evaporator, which are four concentrated solution that is to be brought back into operation and the number of circles * that the evaporator has *

The concentrated substances are extracted from the pipe socket 6 withdrawn ^ whereby the cycle is derived from these sun cohest Evaporator either duroh aiption or through drain valve or through a classic desire "whose role it is" the height of the concentrated arzeugnl— in the room «5 fcon · State su hold »On the other hand, the height of this ·· flare ·

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5 different · Values have «Depending on the type, <4s are applicable i ^ testimony, like that in Flg. 1 is shown, namely ma to determine the length of time the products have been in the device ken «if that is necessary.

The steam is introduced into the tube bundle through a suitable line 7 which lies in the axis of the evaporator. In this way it is possible to feed the Vorüawpier through a single steam line 3 scu uxvi the Vex-division of the steam in the bundle to keep radial. The cake1 lunjj; of the steam Xm tube bundle is ideal in order that the "steam grooves" which are intended for the steam in Cav: can be omitted. Distribute the tube bundle for 2 hours.

The pipes, which rush to form the heating surface, are distributed according to different systems: naroiai in the 2on #, ie the steam output uEißlbt, ^ otwi; Io distance, he; for dit Jenit; s tubes reduces len wfr.-Künne, the VCN dex 'axis of the apparatus entlernt running, on the one hand the Durchcangsqueraclinitt of vapor proportional "11; £ uni Hadius ame' a ^ e in consideration komnendea Hohre wHchat and amlerorsojts the The dosage will be lower »whom. this Raalus rises.

Baffle plates 9 * I ^ unü 11 ensure the distribution of the steam over the entire height of the Rohrbtindels. The pipeline Q can be provided with an "expansion bellows" in order to prevent considerable forces acting on the upper tubular plate, which are limited to the expansion of the

The cond <mswa »e« r is either through da »axial · Bohr 13 or derived through ears 14, which on the circumference d «a tube * are arranged like the classic Yerdaapf “rn.

The non-condensable vapors are hierungsratnpen 15 Derived.

The to be concentrated product is introduced mixed with the tubular ^ under · plate by lines 15 either alone · od "r old nichtkondeaslerbaren DHmpfen and returned to the peripheral, such as in the patent applica * rnoldung a ₈ 2796 IVs / 12a

in the name of the applicant is given, where the sintered plate 17 is the distribution and homogeneity iälioser.

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Claims (1)

m ti -m PitintineprUülie X. - Reverse flow evaporator with one or more liquids running, in which the steam feed line into the ear bundle is carried out through a vertical axis that is arranged in the axis of the evaporator, so that the steam distribution in the delta wii-d This distribution may be favored by a baffle plate suitable for Oyeteia. 2. - i.ehrfaolixHJiiTvetniaapfer according to claim X «thereby geicenn« * elohnet, ü *** the distribution of animal liohre «which form the heating surface« toose variable distances atattfindot obiiünglu from the rtadiue aar dew the oars in their position.; Ebraout are. 3. - i.oiirfaohraixrvorüampier according to aan claims 1 and Z, by £ ekeniuelohnet that a circular overflow for the concentrated liquids au Uuiiang des HeiarohrblindeIs and above the upper tubular! 'Latte this dele is arranged. 4. - i.ohriachrohrvertiampfer according to the references 1, 2 and 5 _# in that the overflow threshold of this UUei'iauios tiaV a bitten HiShe over the pipe ford & igen i lotto reads, \ sjhoi üleae iiohe in Abiiansit; keit von der / rt üi.-r to k & nzcntiioiundcn ^ r ^ ou ^ nlsse Ueatin & t wirü. 909812 / Ü881 H44372 5 · - Mshrfaehrohrverdaipfer according to claims 1, 2, 3 and 4 «characterized in that liquids from one evaporator to the next by level control are carried out» whereby the volume of the concentrated liquid that is in the has is kept constant » is * that is formed by the overflow and the boiler shell of the steam chamber dw concentration device. 6. H * hrfachi * oiirverdampfer, characterized in that the above functions 1, 2,% 4, and 5 can be used at the same time or separately. 909812/0881