DE1094773B - Steam-heated vertical heat exchanger with control by condensate build-up and vertical pipes heated by the steam - Google Patents
Steam-heated vertical heat exchanger with control by condensate build-up and vertical pipes heated by the steamInfo
- Publication number
- DE1094773B DE1094773B DESCH23766A DESC023766A DE1094773B DE 1094773 B DE1094773 B DE 1094773B DE SCH23766 A DESCH23766 A DE SCH23766A DE SC023766 A DESC023766 A DE SC023766A DE 1094773 B DE1094773 B DE 1094773B
- Authority
- DE
- Germany
- Prior art keywords
- steam
- heated
- heat exchanger
- vertical
- control
- 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
Links
- 238000010438 heat treatment Methods 0.000 claims description 12
- 230000033228 biological regulation Effects 0.000 claims description 2
- 238000009825 accumulation Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B1/00—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
- F28B1/02—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser using water or other liquid as the cooling medium
-
- 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
- F28D7/16—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 being arranged in parallel spaced relation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
Description
Dampfbeheizter stehender Wärmeaustauscher mit Regelung durch Kondensatstau und senkrechten, durch den Dampf beheizten Rohren Es sind Wärineaustauscher bekannt, die mit Dampf durch die Rohre betrieben werden, welcher seine Wärme an das die Heizrohre umgebende Wasser des Heizungskreislaufes abgibt. Eine Ausführungsform ist in Abb. 1 dargestellt.Steam-heated vertical heat exchanger with control through condensate build-up and vertical pipes heated by the steam. Heat exchangers are known which are operated with steam through the pipes, which transfers its heat to the heating pipes releases surrounding water of the heating circuit. One embodiment is shown in Fig. 1 shown.
Die Regelung erfolgt hier so, daß der Kondensatabfluß nach Maßgabe der Vorlauftemperatur gedrosselt wird. Dadurch ergibt sich ein Aufstauen des Kondensates in den Rohren, und die Wärmeleistung des Apparates geht zurück.The regulation takes place here in such a way that the condensate drainage according to the flow temperature is throttled. This results in a build-up of the condensate in the pipes, and the heat output of the apparatus decreases.
Aus der jeweiligen Bemessung der Apparate ergeben sich bei jeder `Värmeleistung die zugehörigen Kondensattemperaturen.Man kann also die Kondensatunterkühlung (nämlich die Temperaturabsenkung des Kondensates unter die dem Dampfdruck zugeordnete Siedetemperatur) für die jeweilige Maximalleistung eines Apparate: beliebig durch die Bemessung der Heizfläche, bei festgelegten Höchsttemperaturen des Heizungsrücklaufwassers, festlegen.The respective dimensioning of the devices results in `` heat output the associated condensate temperatures, i.e. condensate subcooling (namely the drop in temperature of the condensate below the boiling temperature assigned to the vapor pressure) for the respective maximum output of an apparatus: arbitrarily through the dimensioning of the Define the heating area at the specified maximum temperatures of the heating return water.
Es hat sich nun gezeigt, daß diese Apparate, wie in Abb. 1 gezeigt, dazu neigen, daß sich iin oberen Teil des Wärmeaustauschers die Wärme staut, was zu örtlichen Dampfbildungen führt, wobei Druckstöße im Heizsvstern und Geräusche entstehen.It has now been shown that these apparatuses, as shown in Fig. 1, tend to build up the heat in the upper part of the heat exchanger, which leads to local steam formation, with pressure surges in the heating system and noises develop.
Die Ursache hierfür ist darin zu suchen, daß eine Überhitzung des Wassers mit den Verdampfungserscheinungen dadurch zustande kommt, daß die obere Platte des Apparates durch ihre Heizwirkung das Wasser noch weiter erhitzt.The reason for this is to be found in the fact that overheating of the Water comes about with the evaporation phenomena that the upper The plate of the apparatus heats the water even further through its heating effect.
Es wurde versucht, diese Schwierigkeiten zu beseitigen. Bei einer Bauart nach Abb. 2 wird versucht, durch schraubenförmig gewundene Heizrohre das Problem zu lösen. Sie hat aber den Nachteil, daß diese Heizrohre keine einfachen Elemente sind und daher beim Schadhaftwerden, vor allem bei größeren Apparaten, schwer ausgewechselt werden können.Attempts have been made to overcome these difficulties. At a Design according to Fig. 2 is attempted by means of helically wound heating pipes Solve a problem. But it has the disadvantage that these heating tubes are not simple ones Elements and therefore if they become damaged, especially in larger devices, difficult to replace.
Bei einer anderen Bauart, wie in Abb.3 gezeigt, wird ein Teil der Schwierigkeiten dadurch gelöst, daß der obere, die Rohre aufnehmende Boden schräg angeordnet wird, wodurch die sich bildenden Dampfblasen nach oben abgeführt werden. Diese Form ist jedoch wegen der schrägen Einwalzstellen der Rohre in den Boden sehr aufwendig.In another design, as shown in Figure 3, part of the Difficulties solved in that the upper, the tubes receiving floor inclined is arranged, whereby the forming vapor bubbles are discharged upwards. However, this shape is very special because of the inclined rolling points of the pipes into the ground laborious.
Die vorliegende Erfindung behebt nun die geschilderten Schwierigkeiten.The present invention now overcomes the difficulties outlined.
Der Nachteil, daß die obere Rohrplatte mit ihrer Heizfläche im Wasser Wärmestauungen hervorruft, wird erfindungsgemäß, wie in Abb. 4 dargestellt, dadurch behoben, daß im oberen Teil des Wärmeaustauschers ein zylindrisches Blech um das Rohrbündel angeordnet wird, an dessen unterem Rand ein mit der Gehäusewand verbundener Kragen angeordnet ist. Dadurch wird das zu erwartende Wasser im oberen Teil gezwungen, auf die Mitte der Platte aufzufließen und radial nach außen zu strömen.The disadvantage that the upper tube plate with its heating surface in the water Causing heat build-up, according to the invention, as shown in Fig. 4, thereby fixed that in the upper part of the heat exchanger a cylindrical sheet metal around the Tube bundle is arranged, at the lower edge of which is connected to the housing wall Collar is arranged. This forces the expected water in the upper part, to flow onto the center of the plate and flow radially outwards.
Eine weitere Maßnahme ist die, die Rohre an der oberen Platte so einzuwalzen, daß sie um mehr als den einfachen Durchmesser des Rohres in den Dampfraum hineinragen, wie Abb. 5 zeigt. Es bildet sich dabei, vor allem bei mit Sattdampf betriebenen Apparaten, oben auf der Platte eine ruhende Kondensatschicht, welche zu einem gewissen Teil als Wärmeisolierung der Platte wirkt. Dadurch wird die Heizleistung der oberen Platte weiter heruntergesetzt und die Möglichkeit, daß sich im oberen Teil des Wasserraumes örtliche Dampfnester bilden, noch weiter gemindert.Another measure is to roll the tubes on the top plate so that that they protrude into the steam space by more than the single diameter of the pipe, as Fig. 5 shows. It forms, especially when operated with saturated steam Apparatus, on top of the plate a dormant layer of condensate, which to a certain extent Part acts as thermal insulation of the plate. This makes the heating output the top Plate further lowered and the possibility of that in the upper part of the water space Form local steam pockets, even further reduced.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DESCH23766A DE1094773B (en) | 1958-03-24 | 1958-03-24 | Steam-heated vertical heat exchanger with control by condensate build-up and vertical pipes heated by the steam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DESCH23766A DE1094773B (en) | 1958-03-24 | 1958-03-24 | Steam-heated vertical heat exchanger with control by condensate build-up and vertical pipes heated by the steam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1094773B true DE1094773B (en) | 1960-12-15 |
Family
ID=7429699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DESCH23766A Pending DE1094773B (en) | 1958-03-24 | 1958-03-24 | Steam-heated vertical heat exchanger with control by condensate build-up and vertical pipes heated by the steam |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1094773B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3121297A1 (en) * | 1981-05-29 | 1982-12-16 | M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 4200 Oberhausen | METHOD AND DEVICE FOR CONTROLLING THE HEAT FROM THE HEAT EMISSION GAS TO BE SUPPLIED BY A HEAT EXCHANGER |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR354402A (en) * | 1905-05-18 | 1905-10-05 | Emile Guillaume | Improvement in condensers, wine heaters, refrigerants, etc., usually used in distillery or other similar industries |
| DE1007044B (en) * | 1955-04-19 | 1957-04-25 | Bruno Prinke Dr Ing | Standing, steam-heated countercurrent device |
-
1958
- 1958-03-24 DE DESCH23766A patent/DE1094773B/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR354402A (en) * | 1905-05-18 | 1905-10-05 | Emile Guillaume | Improvement in condensers, wine heaters, refrigerants, etc., usually used in distillery or other similar industries |
| DE1007044B (en) * | 1955-04-19 | 1957-04-25 | Bruno Prinke Dr Ing | Standing, steam-heated countercurrent device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3121297A1 (en) * | 1981-05-29 | 1982-12-16 | M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 4200 Oberhausen | METHOD AND DEVICE FOR CONTROLLING THE HEAT FROM THE HEAT EMISSION GAS TO BE SUPPLIED BY A HEAT EXCHANGER |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2450847A1 (en) | WATER HEATER | |
| DE2430208A1 (en) | PROCEDURE FOR INTERHEATING OF PARTIALLY EXHAUSTED STEAM AND NUCLEAR POWER PLANT FOR CARRYING OUT THE PROCESS | |
| DE1501340A1 (en) | Pressure reduction system for the condensation of steam suddenly released in a containment of a nuclear reactor in an accident | |
| DE1219136B (en) | Nuclear reactor for generating superheated steam | |
| EP0123986B1 (en) | Feed-water heater | |
| DE1927949A1 (en) | Steam generation and overheating device, especially for with molten metal, molten metal salt or the like. nuclear reactors working as heat exchangers | |
| DE2517126C2 (en) | Heat exchanger to utilize the heat content of wastewater | |
| DE2333024A1 (en) | STEAM GENERATOR | |
| DE1094773B (en) | Steam-heated vertical heat exchanger with control by condensate build-up and vertical pipes heated by the steam | |
| DE1134397B (en) | Vertical double pipe heat exchanger with internal connecting pipes between the shell and cover spaces | |
| DE2441324A1 (en) | DEVICE FOR SEPARATING STEAM AND WATER PHASES IN DETHEATERS FROM FEED WATER PREHEATERS | |
| DE2349949A1 (en) | HEAT EXCHANGER WITH CONDENSATE COOLER | |
| DE1848628U (en) | STEAM-HEATED, STANDING HEAT EXCHANGER WITH CONTROL BY CONDENSATE DAMAGE. | |
| DE2243417A1 (en) | STEAM GENERATOR | |
| DE806854C (en) | Water pipe radiation steam generator | |
| DE2536757A1 (en) | Shell and tube steam generator - for sodium-cooled reactor with gas-insulated feedwater tubes | |
| DE2316623C3 (en) | Heat exchanger for connection to a district heating system | |
| CH184381A (en) | Steam generator with a cooling screen in the combustion chamber. | |
| DE2515623B2 (en) | STEAM GENERATOR WITH A U-PIPE BUNDLE ARRANGED IN A LONGITUDINAL PRESSURE VESSEL | |
| DE2550264A1 (en) | Cooling system for tube passing through a wall - e.g. for protecting nuclear reactor pressure vessels | |
| AT120964B (en) | Heater for hydraulic fluids. | |
| AT146106B (en) | Steam generator with a cooling screen in the combustion chamber. | |
| DE613069C (en) | Mercury steam boiler | |
| DE1532919C (en) | Circulation heating for the oven | |
| AT160646B (en) | Steam generator in which the working fluid is forcibly circulated by the radiant and contact heating surfaces connected in parallel. |