EP1718911B1 - Mit wärmeaustauschmitteln versehene vorrichtung - Google Patents
Mit wärmeaustauschmitteln versehene vorrichtung Download PDFInfo
- Publication number
- EP1718911B1 EP1718911B1 EP05704595A EP05704595A EP1718911B1 EP 1718911 B1 EP1718911 B1 EP 1718911B1 EP 05704595 A EP05704595 A EP 05704595A EP 05704595 A EP05704595 A EP 05704595A EP 1718911 B1 EP1718911 B1 EP 1718911B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tube bank
- wall
- medium stream
- inlet
- tubes
- 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.)
- Not-in-force
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Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/0041—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for only one medium being tubes having parts touching each other or tubes assembled in panel form
Definitions
- the invention relates to an apparatus provided with heat-exchanging means comprising a housing, in which housing a tube bank is accommodated, having at both sides connecting means for the inlet and outlet of a primary medium stream and a secondary medium stream, wherein the housing comprises a wall that extends in the longitudinal direction of the tube bank.
- Such an apparatus concerns, for example, a chemical reactor in which an exothermic or endothermic reaction is carried out.
- the energy required for an endothermic reaction may, for example, be supplied with the primary medium stream, whilst the reaction itself takes place in the secondary medium stream.
- the function of the primary and the secondary medium stream may also be interchanged.
- Exothermic reactions also may advantageously take place in such an apparatus since the reaction heat can then be absorbed directly by a heat-removing medium stream.
- Some catalysts are less effective or even become unstable at increasing temperatures, and then it is very useful to be able to directly remove the reaction heat that has developed with an exothermic reaction.
- Such an apparatus embodied as heat exchanger is known from NL-A-298 579 .
- Both the primary medium stream and the secondary medium stream may be a liquid stream, a gas stream or a mixture thereof.
- a problem of the known apparatus is that in practice, the temperature difference between the housing whose temperature is wholly determined by the secondary stream and the tube bank whose temperature is determined by both streams must not be greater than approximately 50°C.
- the expansion differences resulting from greater temperature differences increase the loads on the tube bank, on tube plates in which the tubes of the tube bank are lodged, and the housing. Even if thicker tube plates, tube banks and housing were the answer to these increased loads, in consideration of its manufacture, such a heat exchanger would be of little interest.
- the object of the invention is to provide a relatively simple, inexpensive and effective apparatus while avoiding the disadvantages of the known apparatus.
- the apparatus according to the invention is characterized in that the wall is embodied with tubes incorporated therein or mounted thereon, through which a portion of the medium supplied to the tube bank flows.
- This provides a very simple and effective construction for achieving that during operation, the wall acquires substantially the temperature of the tube bank.
- An important advantage of the apparatus according to the invention is that there are no limitations with respect to the allowable temperature difference between the primary medium stream and the secondary medium stream.
- the temperature of the wall may be raised to that of the tube bank by optionally using co-active heating means that are incorporated in or mounted onto this wall.
- the apparatus should preferably be constructed such that the tubes of the wall have a predetermined diameter and a predetermined mutual distance, such that during operation the wall acquires substantially the temperature of the tube bank.
- a suitable construction of the apparatus according to the invention is characterized in that at their ends, the tubes that are mounted in or onto the wall and the tubes of the tube bank are lodged in tube plates that connect to, respectively, an inlet pipe connector or outlet pipe connector for the primary medium stream, and in that the housing at said ends possesses an inlet or outlet, respectively, for the secondary medium stream.
- This construction has the additional advantage that it allows the tube length of the tube bank to be used more effectively, due to which a sought effective heat-exchanging surface can be realised with a tube bank of a shorter length than that of the known apparatus.
- the inlet or outlet, respectively, for the secondary medium stream is embodied as an inlet or outlet conduit surrounding the tube bank like a housing, and that over approximately the width of this inlet or outlet conduit, between adjacent tubes of the wall surrounding the tube bank, gaps are provided for, respectively, the inlet or outlet of the secondary medium stream.
- reference numeral 1 indicates the heat exchanger according to the invention.
- Said heat exchanger 1 has a housing 2, within which housing 2 a tube bank 3 is accommodated.
- the figures do not show the individual tubes of the tube bank 3. However, to the person skilled in the art it is clear how such a tube bank 3 is constructed, so that it does not need to be shown in the figure.
- the tube bank 3 possesses a first end with a connecting means 4 for the inlet of a primary medium stream 6 and a second end with a connecting means 5 for the outlet of said primary medium stream 6.
- In- and outlet of a secondary medium stream 7 also takes place via said connecting means 4 and 5, usually this occurs in counter-flow with respect to the primary medium stream 6.
- the connecting means 5 provided at the second end thus serves for the inlet of the secondary medium stream 7, whereas the connecting means 4 provided at the first end, serves for the outlet of the second medium stream 7.
- the housing 2 further possesses a wall 8 extending in the longitudinal direction of the tube bank 3, which wall according to the invention is equipped such that during operation it acquires substantially the temperature of the tube bank 3.
- the wall 8 is embodied with tubes 9 incorporated therein or mounted thereon, through which a portion of the medium supplied to the tube bank 3 flows. This is clearly visible in the cut-away view of an end of the heat exchanger 1 as illustrated in Fig. 2 .
- the tubes 9 of the wall 8 are embodied with a predetermined diameter and a predetermined mutual distance such that during operation, the wall 8 substantially acquires the temperature of the tube bank 3. It will be obvious that the diameter and the distance of the tubes 9 to the wall 8 are in part determined by the diameter of the tubes of the tube bank 3 and the resistance caused by said pipes for the medium flowing through said pipes.
- Fig. 1 shows that the ends of the tubes 9 of the wall 8 as well as the tubes of the tube bank 3 are lodged in tube plates 10, 11.
- Said tube plates are provided at both sides of the heat exchanger 1, and connect to an inlet pipe connector 12 or an outlet pipe connector 13, respectively, for the primary medium stream 6.
- Figs. 1 and 2 further show that at said inlet pipe 12 and outlet pipe 13, the housing 2 is provided with an inlet 14 and outlet 15 for the secondary medium stream 7.
- the inlet 14 and outlet 15 for the secondary medium stream 7 are embodied as an inlet conduit or outlet conduit, respectively, surrounding the tube bank 3 like a housing.
- the invention is not limited to the above exemplary embodiment of an apparatus embodied as heat exchanger, but can also be employed, for example, as reactor for an endothermic chemical reaction.
- the catalyst in the tubes of the tube bank 3 and/or the tubes 9 of the wall 8, and to obtain the necessary reaction heat from the secondary medium 7 flowing around the tube bank 3.
- the primary medium stream 6 carries the mixture of chemicals for forming the desired chemical product.
- reaction heat In an exothermic chemical reaction it may be desirable to be able to remove the developed reaction heat immediately. This may be effected in a manner similar to that used with the apparatus intended for endothermic reactions. If the reaction takes place in the primary stream, the secondary stream serves for the removal of heat and if the reaction takes place in the secondary stream, the primary stream serves for the removal of heat.
- the apparatus 1 when the apparatus 1 is embodied as reactor, its dimensioning may well differ greatly from the dimensioning of the apparatus when used as heat exchanger.
- additional measures may be necessary. For example, in order to prevent the catalyst being washed out, it will be necessary to close off the space in which the catalyst is introduced by means of a semi-permeable sieve or gauze.
- such measures are completely within the capabilities of the person skilled in the art and therefore require no further explanation.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
- Thermotherapy And Cooling Therapy Devices (AREA)
Claims (6)
- Eine Vorrichtung (1), die mit einer Wärmeaustauscheinrichtung versehen ist, die ein Gehäuse (2) aufweist, wobei in dem Gehäuse (2) eine Rohrreihe (3) aufgenommen ist, die an beiden Seiten eine Verbindungseinrichtung (4,5) für den Einlass und den Auslass eines Primärmedienstroms (6) und eines Sekundärmedienstroms (7) aufweist, wobei das Gehäuse (2) eine Wand (8) aufweist, die sich in die Längsrichtung der Rohrreihe (3) erstreckt und die die Rohrreihe (3) umgibt, dadurch gekennzeichnet, dass die Wand (8) mit Rohren (9) ausgeführt ist, die in dieselbe eingegliedert oder an derselben befestigt sind, durch die ein Teil des Mediums fließt, das der Rohrreihe (3) zugeführt wird.
- Eine Vorrichtung (1) gemäß Anspruch 1, dadurch gekennzeichnet, dass die Rohre (9) der Wand (8) einen vorbestimmten Durchmesser und einen vorbestimmten gegenseitigen Abstand aufweisen, derart, dass während eines Betriebs die Wand (8) im Wesentlichen die Temperatur der Rohrreihe (3) erlangt.
- Eine Vorrichtung (1) gemäß Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Rohre (9), die in oder an der Wand (8) befestigt sind, und die Rohre der Rohrreihe (3) an den Enden derselben in Rohrplatten (10,11) untergebracht sind, die eine Verbindung mit einem Einlassrohrleitungsverbinder (12) beziehungsweise einem Auslassrohrleitungsverbinder (13) für den Primärmedienstrom (6) herstellen, und dadurch, dass das Gehäuse (2) an den Enden einen Einlass (14) beziehungsweise einen Auslass (15) für den Sekundärmedienstrom (7) besitzt.
- Eine Vorrichtung (1) gemäß Anspruch 1, 2 oder 3, dadurch gekennzeichnet, dass der Einlass (14) beziehungsweise der Auslass (15) für den Sekundärmedienstrom (7) als eine Einlass- oder Auslassleitung ausgeführt ist, die die Rohrreihe (3) wie ein Gehäuse (2) umgibt, und dadurch, dass über näherungsweise der Breite dieser Einlass- oder Auslassleitung (14,15) zwischen benachbarten Rohren der Wand (8), die die Rohrreihe (3) umgibt, Zwischenräume (16,17) für den Einlass beziehungsweise den Auslass des Sekundärmedienstroms (7) vorgesehen sind.
- Eine Vorrichtung gemäß einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass dieselbe als ein chemischer Reaktor ausgeführt ist.
- Eine Vorrichtung gemäß einem der Ansprüche 1-4, dadurch gekennzeichnet, dass dieselbe als ein Wärmeaustauscher ausgeführt ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL1025538A NL1025538C2 (nl) | 2004-02-20 | 2004-02-20 | Warmtewisselaar. |
PCT/NL2005/000065 WO2005080899A1 (en) | 2004-02-20 | 2005-01-28 | Appartus provided with heat-exchanging means |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1718911A1 EP1718911A1 (de) | 2006-11-08 |
EP1718911B1 true EP1718911B1 (de) | 2010-03-17 |
Family
ID=34880448
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05704595A Not-in-force EP1718911B1 (de) | 2004-02-20 | 2005-01-28 | Mit wärmeaustauschmitteln versehene vorrichtung |
Country Status (8)
Country | Link |
---|---|
US (1) | US20070039569A1 (de) |
EP (1) | EP1718911B1 (de) |
CN (1) | CN100491887C (de) |
AT (1) | ATE461408T1 (de) |
CA (1) | CA2556949A1 (de) |
DE (1) | DE602005019984D1 (de) |
NL (1) | NL1025538C2 (de) |
WO (1) | WO2005080899A1 (de) |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL298579A (de) * | ||||
US2058324A (en) * | 1936-01-27 | 1936-10-20 | Rilcy Stoker Corp | Heat exchanger |
US2270864A (en) * | 1938-05-23 | 1942-01-27 | Western Cartridge Co | Heat exchanger |
US2269619A (en) * | 1940-06-18 | 1942-01-13 | Foster Wheeler Corp | Heat exchanger |
US2804284A (en) * | 1953-04-03 | 1957-08-27 | Griscom Russell Co | Heat exchanger |
DE1501519B2 (de) * | 1965-04-30 | 1971-02-25 | Linde Ag, 6200 Wiesbaden | Kreuzgegenstromer |
US3526275A (en) * | 1968-05-27 | 1970-09-01 | Du Pont | Tube bundle assembly having baffle and header seal features for use in plastic tube heat transfer apparatus combinations |
US3782457A (en) * | 1971-10-26 | 1974-01-01 | Rohr Corp | Recuperator and method of making |
US4585053A (en) * | 1982-09-02 | 1986-04-29 | The United States Of America As Represented By The United States Department Of Energy | Heat exchanger for reactor core and the like |
US4722829A (en) * | 1986-03-24 | 1988-02-02 | Giter Gregory D | Blood oxygenator |
JPS645564A (en) * | 1987-06-29 | 1989-01-10 | Terumo Corp | Heat or mass exchange apparatus |
US5251693A (en) * | 1992-10-19 | 1993-10-12 | Zifferer Lothar R | Tube-in-shell heat exchanger with linearly corrugated tubing |
CA2247759C (en) * | 1998-09-18 | 2008-04-15 | Easton Bennett | Heat exchanger for a motor vehicle exhaust |
CN1167934C (zh) * | 2001-09-28 | 2004-09-22 | 宁波市中源机械制造有限公司 | 一种冷却器 |
-
2004
- 2004-02-20 NL NL1025538A patent/NL1025538C2/nl not_active IP Right Cessation
-
2005
- 2005-01-28 WO PCT/NL2005/000065 patent/WO2005080899A1/en active Application Filing
- 2005-01-28 EP EP05704595A patent/EP1718911B1/de not_active Not-in-force
- 2005-01-28 DE DE602005019984T patent/DE602005019984D1/de active Active
- 2005-01-28 AT AT05704595T patent/ATE461408T1/de not_active IP Right Cessation
- 2005-01-28 CN CNB2005800109696A patent/CN100491887C/zh not_active Expired - Fee Related
- 2005-01-28 CA CA002556949A patent/CA2556949A1/en not_active Abandoned
-
2006
- 2006-08-18 US US11/465,696 patent/US20070039569A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
CN1942730A (zh) | 2007-04-04 |
ATE461408T1 (de) | 2010-04-15 |
DE602005019984D1 (de) | 2010-04-29 |
CN100491887C (zh) | 2009-05-27 |
US20070039569A1 (en) | 2007-02-22 |
NL1025538C2 (nl) | 2005-08-23 |
EP1718911A1 (de) | 2006-11-08 |
WO2005080899A1 (en) | 2005-09-01 |
CA2556949A1 (en) | 2005-09-01 |
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