SE193459C1

SE193459C1 -

Info

Publication number: SE193459C1
Authority: SE
Publication date: 1964-01-01

Description

Uppfinnare: C A Heuer och R F Adams Prioritet beglird frdn den 22 oktober 1954 (USA) Foreliggande uppfinning avser ett forfarande for att astadkomma ett enda kopplingsstalle med bade inlopp och utlopp for stromningsbanan i varmevaxlare, som bestar av ett par hopfogade plattor och som har kanaler, sona bildar en utvidgning i de hopfogade plattorna. Darjamte avser uppfinningen en varmevaxlare forsedd med i enlighet med forfarandet utfort kopplingsstalle. Inventor: CA Heuer and RF Adams Priority Beglird of October 22, 1954 (USA) The present invention relates to a process for providing a single connection stall with both inlet and outlet for the flow path in heat exchangers, which consists of a pair of joined plates and having channels, sona forms an extension in the joined plates. In addition, the invention relates to a heat exchanger provided with a coupling stable constructed in accordance with the method.

Varmevaxlare maste vara forsedda med nâgon form av inlopp och utlopp for stromningsbanan genom varmevaxlaren. Della nodvandiggor ofta att i varmevaxlaren befintliga kanaler, som bildar stromningsbanan, forses med tva eller flera forlangningar vid plattornas periferi. Flera sAdana forlangningar ar en nackdel, emedan varje fOrlangning kraver en sarskild kopplingsoperation. En sadan operation Al. en komplicerad och dyrare form for att forma och inbOrdes f8rbinda ror. For att eliminera derma och ytterligare nackdelar vid det som hittills är Hilt pa detta omrade kannetecknas forfarandet enligt uppfinningen darav, att en insnorpad del astadkommes i en andkanaldel av kanalerna, vilken Andkanaldel stracker sig till plattans periferi, att det astadkommes en i sidled mot andkanalen sig strackande kanaldel, som Over kanalerna Or ansluten till andkanalen innan.f8r den insnorpade delen, varvid den i sidled sig strackande kanaldelens utloppsdel forenas med den delen av andkanalen, som befinner sig mellan den insnOrpade delen och periferin, att ett rOr infores i andkanalen sâ att atminstone rorets Oxide stracker sig in i den insnorpade delen, varvid r5ret ham en tvarsektionsarea, som motsvarar den insnorpade delens tvarsektionsarea och bildar anslutning till kanalerna. Heat exchangers must be provided with some form of inlet and outlet for the flow path through the heat exchanger. It is often necessary for the channels present in the heat exchanger, which form the flow path, to be provided with two or more extensions at the periphery of the plates. Several such requests are a disadvantage, since each request requires a separate coupling operation. Such an operation Al. a complicated and more expensive form for forming and incorporating pipes. In order to eliminate these and further disadvantages of what has hitherto been Hilt in this field, the method according to the invention can be characterized in that a constricted part is provided in a duct part of the ducts, which duct portion extends to the periphery of the plate, that a duct is provided laterally towards the duct stretching channel part, which over the channels is connected to the duct channel before at least the oxide of the tube extends into the constricted part, the tube having a cross-sectional area which corresponds to the cross-sectional area of the constricted part and forms a connection to the channels.

Varmevaxlaren, som Or forsedd med i en lighet med fOrfarandet utfort kopplingsstalle kannetecknas i huvudsak darav, att den är ihdlig och utford av plattor med ett flertal invandiga kanaler, i vilka en till varmevaxlarens periferi sig strackande andkanaldel liar en insnOrpad del, som fattar om ett ror, vilket stracker sig genom andkanaldelen in i den insnorpade delen, varvid roret liar en tvarsektionsarea som motsvarar den insnorpade delens tvarsektionsarea och bildar kanalernas inloppsdel, medan kanalernas utloppsdel är ansluten till andkanaldelen mellan den insnorpade delen och periferien. The heat exchanger, which Or is provided with a connection stall in accordance with the procedure, can be characterized mainly by the fact that it is durable and challenged by plates with a plurality of internal channels, in which a duct part extending to the periphery of the heat exchanger has a constricted part, which comprises a tube, which extends through the duct channel portion into the constricted portion, the tube lining a cross-sectional area corresponding to the cross-sectional area of the constricted portion and forming the inlet portion of the channels, while the outlet portion of the channels is connected to the duct channel portion between the constricted portion and the periphery.

Uppfinningen skall beskrivas i det foljande under hanvisning till bifogade ritningar. Fig. 1 är en. plan-vy av en utforingsform av en med kopplingsstallet enligt uppfinningen forsedd varmevaxlare. Fig. 2 är en sidovy av den i fig. 1 visade varmevaxlaren. Fig. 3 är en endast delvis visad tvarsektion i stOrre skala longs linjeni fig. 1. Fig. 4 är en endast del- vis visad tvarsektion i storre skala langs linjen IV—IV i fig. 1. Fig. 5 är en endast delvis visad tvarsektion i storre skala langs linjen V—V i fig. 2. Fig. 6 Or en planvy av en andra utf8ringsform av uppfinningen. Fig. 7 är en endast delvis visad, delvis sektionerad sidovy av en detalj. The invention will be described in the following with reference to the accompanying drawings. Fig. 1 is a. plan view of an embodiment of a heat exchanger provided with the coupling stable according to the invention. Fig. 2 is a side view of the heat exchanger shown in Fig. 1. Fig. 3 is a only partially shown cross-section on a larger scale along the line in Fig. 1. Fig. 4 is a only partially shown cross-section on a larger scale along the line IV-IV in Fig. 1. Fig. 5 is a only partially shown cross-section on a larger scale along the line V-V in Fig. 2. Fig. 6 is a plan view of a second embodiment of the invention. Fig. 7 is a only partially shown, partially sectioned side view of a detail.

I den i fig. 1-5 visade utforingsformen Or varmethlaren tillverkad av en enda platta 1, som genom svetsning och tryck Mugs ett monster fOrses med kanaler 2. En del 3 av kanalerna 2, vilken del i det foljande angives sasom inloppsdel, am forsedd med en insnor- pad kanaldel 6, frail vilken inloppsdelen stracker sig till plattans 1 periferi och dar- igenom bildar en kanaldel 5, som i det folj an-de angives sasom fOrlangningsdel. Forlangningsdelen 5 bildar salunda kommunikations- 3— — kanal mellan kanalerna 2 och plattans 1 periferi 12. Kanalernas 2 andra anddel eller en utloppsdel bildande kanaldel 4 bildar en Tformad forening med forlangningsdelen 5. Sasom visas i detalj i fig. 5 liar fdrlangningsdelen ,, den insnorpade kanaldelen 6 och kanalerna 2, som befinner sig mellan inlopps- och utloppsdelarna 3 resp. 5 visats efter utvidgningen genom narvaron av ett lager av svetsning fOrhindrande eller skiljande material 11, vilket ar en sammansattning med kol eller .srafit. In the embodiment Or heat heater shown in Figs. 1-5 made of a single plate 1, which by welding and pressure mugs a sample is provided with channels 2. A part 3 of the channels 2, which part is hereinafter referred to as the inlet part, is provided with a constricted channel part 6, from which the inlet part extends to the periphery of the plate 1 and thereby forms a channel part 5, which in the following is indicated as an extension part. The extension part 5 thus forms a communication channel between the channels 2 and the periphery 12 of the plate 1. constricted channel part 6 and the channels 2, which are located between the inlet and outlet parts 3 and 3, respectively. 5 is shown after the expansion by the presence of a layer of welding preventing or separating material 11, which is a composition with carbon or graphite.

Efter bildandet av kanalerna 2 inf5res ett ror 7 i den forlangda kanaldelen 5 sa att r8- rets 7 ande stracker sig in i den insnorpade kanaldelen 6. Rorets 7 tvarsektionsarea är mindre an den insnorpade kanaldelens 6 tvarsektionsarea oeh bildar med den insnorpade kanaldelen 6 kanaldelens 3 inloppsdel. Darjamte har varmevaxlaren ett yttre ror 9, som är anordnat koncentriskt med och pa avstand frail roret 7, vilket rors 9 ande stracker sig in I och tatande ingriper med forlangningsdelen 5. Sasom framgar av fig. 4 och 5 uppkommer harigenom ett mellanrum 10 mellan rorets 9 insida och rorets 7 utsida. Rorets 7 borrning 8 och mellanrummet 10 mellan roren 7 och 9 bildar inlopp resp. utlopp i ett enda genom uppfinningen astadkommet kopplingsstalle for den av kanalerna 2 i varmevaxlaren bildade stromningsbanan. After the formation of the channels 2, a tube 7 is inserted into the required channel part 5 so that the spirit of the tube 7 extends into the constricted channel part 6. The cross-sectional area of the tube 7 is smaller than the cross-sectional area of the constricted channel part 6 and forms the channel part 3 with the constricted channel part 6. inlet part. In addition, the heat exchanger has an outer tube 9, which is arranged concentrically with and at a distance from the tube 7, which spirit 9 of the tube 9 extends into and tightly engages with the extension part 5. As can be seen from Figures 4 and 5, a space 10 arises between 9 inside and the rudder 7 outside. The bore 8 of the rudder 7 and the gap 10 between the rudders 7 and 9 form inlets resp. outlet in a single connection stall provided by the invention for the flow path formed by the channels 2 in the heat exchanger.

I den i fig. 6 visade utforingsformen ar varmevaxlaren 13 forsedd med en kanal 14, som liar en inloppsdel 15 och en utloppsdel 16. De gemensamma kopplingsstallena for inloppen och utloppen bestir i denna utforingsform av en f8rstorad forlangningsdel 17 av kanalens 14 anddel 15 och en returledning 18, som bildar ett T med forlangningsdelen 17 och sträcker sig mellan kanalens 14 andra anddel 16 och den forlangda delen 17. Den forlangda delen 17 är i denna utfOringsform ett alternativt utforande av den insnorpade kanaldelen i foregaende utforingsform och fir onskvard, dar stone stromningskapacitet behovs vid det gemensamma kopplingsstallet for inlopp och utlopp. In the embodiment shown in Fig. 6, the heat exchanger 13 is provided with a channel 14, which has an inlet part 15 and an outlet part 16. The common connecting stalls for the inlets and outlets in this embodiment consist of an enlarged extension part 17 of the part 15 of the channel 14 and a return line 18, which forms a T with the extension part 17 and extends between the second part 16 of the duct 14 and the required part 17. The required part 17 is in this embodiment an alternative embodiment of the constricted channel part in the previous embodiment and for which the flow capacity needed at the common connection station for inlet and outlet.

I utforingsformen enligt fig. 6 Sr den primara varmevaxlaren 13 forsedd med ett andra kopplingsstalle for inlopp och utlopp i form av en utvidgad och forlangd kanaldel 22, som stracker sig mellan kanalens 14 anddel 16, returledningen 18 och en annan del av varmevaxlarens 13 periferi. Vid denna andra for-Magda kanaldel 22 iordningstalles ett gemensamt kopplingsstalle for inlopp och utlopp genom att ytterligare ett innerror 24 och ett ytterror 31 infores i varmevaxlaren, vilka ror bildar ett gemensamt kopplingsstalle for den primara varmevaxlaren 13 och en andra varmevaxlare 25, som alien är forsedd med en en stromningsbana genom varmevaxlaren dande kanal 26. I varmevaxlaren 25 liar ka- nalen 26 en sasom inlopp tjanande anddel 27 och en sasom utlopp tjanande anddel 28, vilka forenats i den forstorade forlangda kanaldelen 29, i vilken de ett gemensamt kopplingsstalle bildande och inbordes koncentriska roren 24 och 31 är anbragta. In the embodiment according to Fig. 6, the primary heat exchanger 13 is provided with a second connection stall for inlet and outlet in the form of an enlarged and extended duct part 22, which extends between the part 16 of the duct 14, the return line 18 and another part of the periphery of the heat exchanger 13. At this second pre-Magda duct part 22 a common connection stall for inlet and outlet is prepared by inserting a further inner tube 24 and an outer tube 31 into the heat exchanger, which tubes form a common connection stall for the primary heat exchanger 13 and a second heat exchanger 25, which is alien. provided with a channel 26 flowing through the heat exchanger. inboard the concentric tubes 24 and 31 are arranged.

Vid iordningstallandet av varmevaxlaren anbringas ett ror 19 av mindre diameter och med en inloppskanal 21 i den forstorade forlangda kanaldelen 17, sa att rorets 19 ande befinner sig i kanalens 14 anddel 15, dar en lamplig tatning kan vara anordnad, och ett ror 20 anbringas koncentriskt kring roret 19 sa att ett mellanrum uppkommer mellan dessa r5r, -vilket ror 20 tatande ingriper med den forlangda kanaldelens 17 yttre ande. Det mellan liken uppkomna mellanrummet ãr betecknat medelst hanvisningsbeteckningen 32 och genom detta rum strommar vatska Iran kanalens 26 anddel 28 genom returkanalen 18 och den forlangda kanaldelen 17 ()eh avgar fran varmevaxlaren. Pa samma satt kan roret 24 med sin ena ande i den f5rstorade kanaldelen 22 vara kopplat till kanalens 14 utloppsdel 16, medan rorets 24 andra dude i den Rirstorade kanaldelen. 29 Sr anslutet till kanalens 26 inloppsdel 27 i varmevaxlaren 25. Anordnandet enligt fig. 6 tillater i sin helhet vatska, sasom kylmedel, att inforas i kanalens 14 inloppsdel 15 medelst roret 19 och cirkuleras genom kanalen 14 i varmevaxlaren 13 till kanalens 14 utloppsdel 16, varifran viltskan overawes medelst roret 24 till den i varmevaxlaren. 25 belagna kanalens 26 inloppsdel 27. Vatskan cirkulerar fran kanaldelen 27 genom kanalen 26 till denna kanals kanaldel 28, frail vilken vatskan lamnar virmevaxlaren 25 genom den forlangda delen 29 och roret 31 och inkommer pa nytt i varmevaxlaren 13 i den forlangda kanaldelen 22 for att genom kanalen 18 foras till den forlangda kanaldelen 17, fran vilken vatskan avgar genom roret 20. Genom delta utforande behovs endast tre kopplingsstallen medan vid anvandning av vanliga ror sex kopplingsstallen erfordras. When preparing the heat exchanger, a tube 19 of smaller diameter and with an inlet channel 21 is arranged in the enlarged required channel part 17, so that the spirit of the tube 19 is in the part 15 of the channel 14, where a suitable seal can be arranged, and a tube 20 is arranged concentrically. around the rudder 19 so that a gap arises between these tubes, which rudder 20 engages with the outer spirit of the required channel part 17. The space created between the corpses is denoted by the male reference numeral 32 and through this space the liquid part 28 of the liquid Iran 26 flows through the return channel 18 and the required channel part 17 () emits from the heat exchanger. In the same way, the tube 24 with its one spirit in the enlarged channel part 22 can be connected to the outlet part 16 of the channel 14, while the other dude of the tube 24 in the tube-enlarged channel part. 29 Sr connected to the inlet part 27 of the duct 26 in the heat exchanger 25. The device according to Fig. 6 allows in its entirety liquid, such as coolant, to be introduced into the inlet part 15 of the duct 14 by means of the tube 19 and circulated through the duct 14 in the heat exchanger 13. from which the game is overawed by means of the rudder 24 to that in the heat exchanger. The liquid circulates from the duct part 27 through the duct 26 to the duct part 28 of this duct, from which the liquid leaves the heat exchanger 25 through the required part 29 and the pipe 31 and re-enters the heat exchanger 13 in the required duct part 22 to the channel 18 is led to the required channel part 17, from which the liquid discharges through the tube 20. By means of a delta, only three coupling stalls are needed, while when using ordinary tubes six coupling stalls are required.

Genom uppfinningen erhalles ett enda kopplingsstalle med inlopp och utlopp utan att hjalpdelar behover tillgripas, sasom perforerade proppar eller speciella, med flansar forsedda r5r eller liknande. Genom uppfinningen kan vanliga ror och kopplingar anvandas. Kven om uppfinningen endast visats i samband med en varmevaxlare och tva varmevaxlare ar det uppenbart, att tre eller fyra varmevaxlare fordelaktigt kan hopkopplas genom tillampning av uppfinningen. Det inses utan vidare, att mer an en sekundar varmevaxlare kan forbindas direkt med den primara varmevaxlaren enligt fig. 6, varjamte ytlerligare varme‘raxlare kan anvandas i serie med de sekundara varmevaxlarna. The invention provides a single coupling stall with inlets and outlets without the need for auxiliary parts to be resorted to, such as perforated plugs or special, flanged pipes or the like. By means of the invention ordinary tubes and couplings can be used. Although the invention has only been shown in connection with one heat exchanger and two heat exchangers, it is obvious that three or four heat exchangers can advantageously be connected by applying the invention. It will be readily appreciated that more than one secondary heat exchanger may be connected directly to the primary heat exchanger of Fig. 6, and additional heat exchangers may be used in series with the secondary heat exchangers.

Ytterligare modifikationer Sr mojliga Mom ramen av uppfinningstanken, sa.dan denna definieras i efterfoljande patentansprak. — —3 Further modifications are possible within the scope of the inventive concept, as defined in the appended patent claims. - —3

Claims

Patent claim:

A method for providing a single connection stall with both inlets and outlets for the flow path in heat exchangers, which consists of a pair of joined plates and which has channels, so as to form an extension in the joined plates, characterized in that a constricted part ( 6) is provided in a duct channel part (3) of the channels (2), which duct channel part (3) extends to the periphery (12) of the plate (1), that a channel part (4) extending laterally towards the duck channel (3) is provided, which Over the channels (2) are connected to the duck channel (3) inside the constricted part (6), the outlet part of the duct portion (4) extending laterally being joined to the part (5) of the duck channel (3) which is located between the the constricted part (6) and the periphery (12), that a tube (7) is inserted into the duct channel (3) so that at least the dude of the tube (7) extends into the constricted part (6), the tube (7) having a cross-sectional area , which corresponds to the cross-sectional area of the constricted part (6) and forms a connection to the channel a (2).

Heat exchanger provided with a coupling stall according to the method according to patent claim 1, characterized in that the Or thing and challenge of joined plates with a plurality of internal channels (2), in which a duct part (3) extending to the periphery of the heat exchanger (12) ) has a constricted portion (6), which receives a tube (7), which extends through the duct channel portion (3) into the constricted portion (6), the tube (7) having a cross-sectional area corresponding to the constricted portion. (6) cross-sectional area and forms the inlet part of the channels (2), while the outlet part (4) of the channels (2) is connected to the duct channel part (3) between the constricted part (6) and the periphery (12).

Heat exchanger according to claim 2, characterized in that the part Or of the rudder (7) engages with the constricting part (6), and the heat exchanger Or is provided with an outer rudder (9), which Or is arranged concentrically with that of the the constricted part (6) engaging the tube (7) and at a distance from it, the outer tube (9) being inserted into the duct channel part (3) near the periphery (2) in close engagement with this channel part (3).

Heat exchanger according to claim 3, characterized in that it forms part of a unit (Fig. 6), which consists of a number of heat exchangers, to which Oro is connected by means of the concentric tubes (7, 9; 24, 31). Cited publications: Patents Iran Germany 591 772; USA 2,514,469.